#include "bytestream.h"
#include "dsputil.h"
#include "get_bits.h"
+ #include "internal.h"
-//#undef NDEBUG
-//#include <assert.h>
+#include "libavutil/avassert.h"
#define BLOCK_TYPE_VLC_BITS 5
#define ACDC_VLC_BITS 9
}
if (frame_4cc == AV_RL32("ifr2")) {
- p->pict_type = AV_PICTURE_TYPE_I;
- if (decode_i2_frame(f, buf - 4, frame_size + 4) < 0)
+ p->pict_type= AV_PICTURE_TYPE_I;
+ if (decode_i2_frame(f, buf - 4, frame_size + 4) < 0) {
+ av_log(f->avctx, AV_LOG_ERROR, "decode i2 frame failed\n");
return -1;
+ }
} else if (frame_4cc == AV_RL32("ifrm")) {
- p->pict_type = AV_PICTURE_TYPE_I;
- if (decode_i_frame(f, buf, frame_size) < 0)
+ p->pict_type= AV_PICTURE_TYPE_I;
+ if (decode_i_frame(f, buf, frame_size) < 0) {
+ av_log(f->avctx, AV_LOG_ERROR, "decode i frame failed\n");
return -1;
+ }
} else if (frame_4cc == AV_RL32("pfrm") || frame_4cc == AV_RL32("pfr2")) {
if (!f->last_picture.data[0]) {
- f->last_picture.reference = 1;
+ f->last_picture.reference = 3;
- if (avctx->get_buffer(avctx, &f->last_picture) < 0) {
+ if (ff_get_buffer(avctx, &f->last_picture) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
*
* supports: fibonacci delta encoding
* : exponential encoding
+ *
+ * For more information about the 8SVX format:
+ * http://netghost.narod.ru/gff/vendspec/iff/iff.txt
+ * http://sox.sourceforge.net/AudioFormats-11.html
+ * http://aminet.net/package/mus/misc/wavepak
+ * http://amigan.1emu.net/reg/8SVX.txt
+ *
+ * Samples can be found here:
+ * http://aminet.net/mods/smpl/
*/
+#include "libavutil/avassert.h"
#include "avcodec.h"
+ #include "internal.h"
#include "libavutil/common.h"
/** decoder context */
}
/* get output buffer */
- esc->frame.nb_samples = buf_size * (is_compr + 1);
+ esc->frame.nb_samples = buf_size * 2;
- if ((ret = avctx->get_buffer(avctx, &esc->frame)) < 0) {
+ if ((ret = ff_get_buffer(avctx, &esc->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
#include "libavutil/common.h"
#include "libavutil/lfg.h"
+#include "libavutil/xga_font_data.h"
#include "avcodec.h"
#include "cga_data.h"
+ #include "internal.h"
#define ATTR_BOLD 0x01 /**< Bold/Bright-foreground (mode 1) */
#define ATTR_FAINT 0x02 /**< Faint (mode 2) */
--- /dev/null
- if((ret = avctx->get_buffer(avctx, p)) < 0){
+/*
+ * AVRn decoder
+ * Copyright (c) 2012 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
++#include "internal.h"
+#include "mjpeg.h"
+#include "mjpegdec.h"
+#include "libavutil/imgutils.h"
+
+typedef struct {
+ MJpegDecodeContext mjpeg_ctx;
+ AVFrame frame;
+ int is_mjpeg;
+ int interlace; //FIXME use frame.interlaced_frame
+ int tff;
+} AVRnContext;
+
+static av_cold int init(AVCodecContext *avctx)
+{
+ AVRnContext *a = avctx->priv_data;
+ int ret;
+
+ // Support "Resolution 1:1" for Avid AVI Codec
+ a->is_mjpeg = avctx->extradata_size < 31 || memcmp(&avctx->extradata[28], "1:1", 3);
+
+ if(!a->is_mjpeg && avctx->lowres) {
+ av_log(avctx, AV_LOG_ERROR, "lowres is not possible with rawvideo\n");
+ return AVERROR(EINVAL);
+ }
+
+ if(a->is_mjpeg)
+ return ff_mjpeg_decode_init(avctx);
+
+ if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0)
+ return ret;
+
+ avcodec_get_frame_defaults(&a->frame);
+ avctx->pix_fmt = AV_PIX_FMT_UYVY422;
+
+ if(avctx->extradata_size >= 9 && avctx->extradata[4]+28 < avctx->extradata_size) {
+ int ndx = avctx->extradata[4] + 4;
+ a->interlace = !memcmp(avctx->extradata + ndx, "1:1(", 4);
+ if(a->interlace) {
+ a->tff = avctx->extradata[ndx + 24] == 1;
+ }
+ }
+
+ return 0;
+}
+
+static av_cold int end(AVCodecContext *avctx)
+{
+ AVRnContext *a = avctx->priv_data;
+ AVFrame *p = &a->frame;
+
+ if(p->data[0])
+ avctx->release_buffer(avctx, p);
+
+ if(a->is_mjpeg)
+ ff_mjpeg_decode_end(avctx);
+
+ return 0;
+}
+
+static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+{
+ AVRnContext *a = avctx->priv_data;
+ AVFrame *p = &a->frame;
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
+ int y, ret, true_height;
+
+ if(a->is_mjpeg)
+ return ff_mjpeg_decode_frame(avctx, data, data_size, avpkt);
+
+ true_height = buf_size / (2*avctx->width);
+ if(p->data[0])
+ avctx->release_buffer(avctx, p);
+
+ if(buf_size < 2*avctx->width * avctx->height) {
+ av_log(avctx, AV_LOG_ERROR, "packet too small\n");
+ return AVERROR_INVALIDDATA;
+ }
+
++ if((ret = ff_get_buffer(avctx, p)) < 0){
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+ p->pict_type= AV_PICTURE_TYPE_I;
+ p->key_frame= 1;
+
+ if(a->interlace) {
+ buf += (true_height - avctx->height)*avctx->width;
+ for(y = 0; y < avctx->height-1; y+=2) {
+ memcpy(p->data[0] + (y+ a->tff)*p->linesize[0], buf , 2*avctx->width);
+ memcpy(p->data[0] + (y+!a->tff)*p->linesize[0], buf + avctx->width*true_height+4, 2*avctx->width);
+ buf += 2*avctx->width;
+ }
+ } else {
+ buf += (true_height - avctx->height)*avctx->width*2;
+ for(y = 0; y < avctx->height; y++) {
+ memcpy(p->data[0] + y*p->linesize[0], buf, 2*avctx->width);
+ buf += 2*avctx->width;
+ }
+ }
+
+ *(AVFrame*)data = a->frame;
+ *data_size = sizeof(AVFrame);
+ return buf_size;
+}
+
+AVCodec ff_avrn_decoder = {
+ .name = "avrn",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_AVRN,
+ .priv_data_size = sizeof(AVRnContext),
+ .init = init,
+ .close = end,
+ .decode = decode_frame,
+ .long_name = NULL_IF_CONFIG_SMALL("Avid AVI Codec"),
+ .capabilities = CODEC_CAP_DR1,
+ .max_lowres = 3,
+};
+
--- /dev/null
- if (avctx->get_buffer(avctx, pic) < 0) {
+/*
+ * AVID Meridien decoder
+ *
+ * Copyright (c) 2012 Carl Eugen Hoyos
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
++#include "internal.h"
+#include "libavutil/intreadwrite.h"
+
+static av_cold int avui_decode_init(AVCodecContext *avctx)
+{
+ avctx->pix_fmt = AV_PIX_FMT_YUVA422P;
+
+ avctx->coded_frame = avcodec_alloc_frame();
+
+ if (!avctx->coded_frame) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static int avui_decode_frame(AVCodecContext *avctx, void *data,
+ int *data_size, AVPacket *avpkt)
+{
+ AVFrame *pic = avctx->coded_frame;
+ const uint8_t *src = avpkt->data, *extradata = avctx->extradata;
+ const uint8_t *srca;
+ uint8_t *y, *u, *v, *a;
+ int transparent, interlaced = 1, skip, opaque_length, i, j, k;
+ uint32_t extradata_size = avctx->extradata_size;
+
+ if (pic->data[0])
+ avctx->release_buffer(avctx, pic);
+
+ while (extradata_size >= 24) {
+ uint32_t atom_size = AV_RB32(extradata);
+ if (!memcmp(&extradata[4], "APRGAPRG0001", 12)) {
+ interlaced = extradata[19] != 1;
+ break;
+ }
+ if (atom_size && atom_size <= extradata_size) {
+ extradata += atom_size;
+ extradata_size -= atom_size;
+ } else {
+ break;
+ }
+ }
+ if (avctx->height == 486) {
+ skip = 10;
+ } else {
+ skip = 16;
+ }
+ opaque_length = 2 * avctx->width * (avctx->height + skip) + 4 * interlaced;
+ if (avpkt->size < opaque_length) {
+ av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
+ return AVERROR(EINVAL);
+ }
+ transparent = avctx->bits_per_coded_sample == 32 &&
+ avpkt->size >= opaque_length * 2 + 4;
+ srca = src + opaque_length + 5;
+
+ pic->reference = 0;
+
++ if (ff_get_buffer(avctx, pic) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ pic->key_frame = 1;
+ pic->pict_type = AV_PICTURE_TYPE_I;
+
+ if (!interlaced) {
+ src += avctx->width * skip;
+ srca += avctx->width * skip;
+ }
+
+ for (i = 0; i < interlaced + 1; i++) {
+ src += avctx->width * skip;
+ srca += avctx->width * skip;
+ if (interlaced && avctx->height == 486) {
+ y = pic->data[0] + (1 - i) * pic->linesize[0];
+ u = pic->data[1] + (1 - i) * pic->linesize[1];
+ v = pic->data[2] + (1 - i) * pic->linesize[2];
+ a = pic->data[3] + (1 - i) * pic->linesize[3];
+ } else {
+ y = pic->data[0] + i * pic->linesize[0];
+ u = pic->data[1] + i * pic->linesize[1];
+ v = pic->data[2] + i * pic->linesize[2];
+ a = pic->data[3] + i * pic->linesize[3];
+ }
+
+ for (j = 0; j < avctx->height >> interlaced; j++) {
+ for (k = 0; k < avctx->width >> 1; k++) {
+ u[ k ] = *src++;
+ y[2 * k ] = *src++;
+ a[2 * k ] = 0xFF - (transparent ? *srca++ : 0);
+ srca++;
+ v[ k ] = *src++;
+ y[2 * k + 1] = *src++;
+ a[2 * k + 1] = 0xFF - (transparent ? *srca++ : 0);
+ srca++;
+ }
+
+ y += (interlaced + 1) * pic->linesize[0];
+ u += (interlaced + 1) * pic->linesize[1];
+ v += (interlaced + 1) * pic->linesize[2];
+ a += (interlaced + 1) * pic->linesize[3];
+ }
+ src += 4;
+ srca += 4;
+ }
+ *data_size = sizeof(AVFrame);
+ *(AVFrame *)data = *pic;
+
+ return avpkt->size;
+}
+
+static av_cold int avui_decode_close(AVCodecContext *avctx)
+{
+ if (avctx->coded_frame->data[0])
+ avctx->release_buffer(avctx, avctx->coded_frame);
+
+ av_freep(&avctx->coded_frame);
+
+ return 0;
+}
+
+AVCodec ff_avui_decoder = {
+ .name = "avui",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_AVUI,
+ .init = avui_decode_init,
+ .decode = avui_decode_frame,
+ .close = avui_decode_close,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Avid Meridien Uncompressed"),
+};
if (bfi->frame.data[0])
avctx->release_buffer(avctx, &bfi->frame);
- bfi->frame.reference = 1;
+ bfi->frame.reference = 3;
- if (avctx->get_buffer(avctx, &bfi->frame) < 0) {
+ if (ff_get_buffer(avctx, &bfi->frame) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
++#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "avcodec.h"
#include "bytestream.h"
--- /dev/null
- if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
+/*
+ * BRender PIX (.pix) image decoder
+ * Copyright (c) 2012 Aleksi Nurmi
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * Tested against samples from I-War / Independence War and Defiance.
+ * If the PIX file does not contain a palette, the
+ * palette_has_changed property of the AVFrame is set to 0.
+ */
+
+#include "libavutil/imgutils.h"
+#include "avcodec.h"
+#include "bytestream.h"
++#include "internal.h"
+
+typedef struct BRPixContext {
+ AVFrame frame;
+} BRPixContext;
+
+typedef struct BRPixHeader {
+ int format;
+ unsigned int width, height;
+} BRPixHeader;
+
+static av_cold int brpix_init(AVCodecContext *avctx)
+{
+ BRPixContext *s = avctx->priv_data;
+
+ avcodec_get_frame_defaults(&s->frame);
+ avctx->coded_frame = &s->frame;
+
+ return 0;
+}
+
+static int brpix_decode_header(BRPixHeader *out, GetByteContext *pgb)
+{
+ unsigned int header_len = bytestream2_get_be32(pgb);
+
+ out->format = bytestream2_get_byte(pgb);
+ bytestream2_skip(pgb, 2);
+ out->width = bytestream2_get_be16(pgb);
+ out->height = bytestream2_get_be16(pgb);
+
+ // the header is at least 11 bytes long; we read the first 7
+ if (header_len < 11) {
+ return 0;
+ }
+
+ // skip the rest of the header
+ bytestream2_skip(pgb, header_len-7);
+
+ return 1;
+}
+
+static int brpix_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size_out,
+ AVPacket *avpkt)
+{
+ BRPixContext *s = avctx->priv_data;
+ AVFrame *frame_out = data;
+
+ int ret;
+ GetByteContext gb;
+
+ unsigned int bytes_pp;
+
+ unsigned int magic[4];
+ unsigned int chunk_type;
+ unsigned int data_len;
+ BRPixHeader hdr;
+
+ bytestream2_init(&gb, avpkt->data, avpkt->size);
+
+ magic[0] = bytestream2_get_be32(&gb);
+ magic[1] = bytestream2_get_be32(&gb);
+ magic[2] = bytestream2_get_be32(&gb);
+ magic[3] = bytestream2_get_be32(&gb);
+
+ if (magic[0] != 0x12 ||
+ magic[1] != 0x8 ||
+ magic[2] != 0x2 ||
+ magic[3] != 0x2) {
+ av_log(avctx, AV_LOG_ERROR, "Not a BRender PIX file\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ chunk_type = bytestream2_get_be32(&gb);
+ if (chunk_type != 0x3 && chunk_type != 0x3d) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid chunk type %d\n", chunk_type);
+ return AVERROR_INVALIDDATA;
+ }
+
+ ret = brpix_decode_header(&hdr, &gb);
+ if (!ret) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid header length\n");
+ return AVERROR_INVALIDDATA;
+ }
+ switch (hdr.format) {
+ case 3:
+ avctx->pix_fmt = AV_PIX_FMT_PAL8;
+ bytes_pp = 1;
+ break;
+ case 4:
+ avctx->pix_fmt = AV_PIX_FMT_RGB555BE;
+ bytes_pp = 2;
+ break;
+ case 5:
+ avctx->pix_fmt = AV_PIX_FMT_RGB565BE;
+ bytes_pp = 2;
+ break;
+ case 6:
+ avctx->pix_fmt = AV_PIX_FMT_RGB24;
+ bytes_pp = 3;
+ break;
+ case 7:
+ avctx->pix_fmt = AV_PIX_FMT_0RGB;
+ bytes_pp = 4;
+ break;
+ case 18:
+ avctx->pix_fmt = AV_PIX_FMT_GRAY8A;
+ bytes_pp = 2;
+ break;
+ default:
+ av_log(avctx, AV_LOG_ERROR, "Format %d is not supported\n",
+ hdr.format);
+ return AVERROR_PATCHWELCOME;
+ }
+
+ if (s->frame.data[0])
+ avctx->release_buffer(avctx, &s->frame);
+
+ if (av_image_check_size(hdr.width, hdr.height, 0, avctx) < 0)
+ return AVERROR_INVALIDDATA;
+
+ if (hdr.width != avctx->width || hdr.height != avctx->height)
+ avcodec_set_dimensions(avctx, hdr.width, hdr.height);
+
++ if ((ret = ff_get_buffer(avctx, &s->frame)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+
+ chunk_type = bytestream2_get_be32(&gb);
+
+ if (avctx->pix_fmt == AV_PIX_FMT_PAL8 &&
+ (chunk_type == 0x3 || chunk_type == 0x3d)) {
+ BRPixHeader palhdr;
+ uint32_t *pal_out = (uint32_t *)s->frame.data[1];
+ int i;
+
+ ret = brpix_decode_header(&palhdr, &gb);
+ if (!ret) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid palette header length\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (palhdr.format != 7) {
+ av_log(avctx, AV_LOG_ERROR, "Palette is not in 0RGB format\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ chunk_type = bytestream2_get_be32(&gb);
+ data_len = bytestream2_get_be32(&gb);
+ bytestream2_skip(&gb, 8);
+ if (chunk_type != 0x21 || data_len != 1032 ||
+ bytestream2_get_bytes_left(&gb) < 1032) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid palette data\n");
+ return AVERROR_INVALIDDATA;
+ }
+ // convert 0RGB to machine endian format (ARGB32)
+ for (i = 0; i < 256; ++i) {
+ bytestream2_skipu(&gb, 1);
+ *pal_out++ = (0xFFU << 24) | bytestream2_get_be24u(&gb);
+ }
+ bytestream2_skip(&gb, 8);
+
+ s->frame.palette_has_changed = 1;
+
+ chunk_type = bytestream2_get_be32(&gb);
+ }
+
+ data_len = bytestream2_get_be32(&gb);
+ bytestream2_skip(&gb, 8);
+
+ // read the image data to the buffer
+ {
+ unsigned int bytes_per_scanline = bytes_pp * hdr.width;
+ unsigned int bytes_left = bytestream2_get_bytes_left(&gb);
+
+ if (chunk_type != 0x21 || data_len != bytes_left ||
+ bytes_left / bytes_per_scanline < hdr.height)
+ {
+ av_log(avctx, AV_LOG_ERROR, "Invalid image data\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ av_image_copy_plane(s->frame.data[0], s->frame.linesize[0],
+ avpkt->data + bytestream2_tell(&gb),
+ bytes_per_scanline,
+ bytes_per_scanline, hdr.height);
+ }
+
+ *frame_out = s->frame;
+ *data_size_out = sizeof(AVFrame);
+
+ return avpkt->size;
+}
+
+static av_cold int brpix_end(AVCodecContext *avctx)
+{
+ BRPixContext *s = avctx->priv_data;
+
+ if(s->frame.data[0])
+ avctx->release_buffer(avctx, &s->frame);
+
+ return 0;
+}
+
+AVCodec ff_brender_pix_decoder = {
+ .name = "brender_pix",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_BRENDER_PIX,
+ .priv_data_size = sizeof(BRPixContext),
+ .init = brpix_init,
+ .close = brpix_end,
+ .decode = brpix_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("BRender PIX image"),
+};
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "get_bits.h"
+ #include "internal.h"
#define BIT_PLANAR 0x00
-#define BYTE_PLANAR 0x20
-#define CHUNKY 0x40
+#define CHUNKY 0x20
+#define BYTE_PLANAR 0x40
#define BIT_LINE 0x80
#define BYTE_LINE 0xC0
}
p->reference = 0;
- if ((ret = avctx->get_buffer(avctx, p)) < 0) {
- if (ff_get_buffer(avctx, p) < 0) {
++ if ((ret = ff_get_buffer(avctx, p)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ return ret;
}
p->pict_type = AV_PICTURE_TYPE_I;
p->key_frame = 1;
--- /dev/null
- if (avctx->get_buffer(avctx, &priv->pic) < 0) {
+/*
+ * - CrystalHD decoder module -
+ *
+ * Copyright(C) 2010,2011 Philip Langdale <ffmpeg.philipl@overt.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * - Principles of Operation -
+ *
+ * The CrystalHD decoder operates at the bitstream level - which is an even
+ * higher level than the decoding hardware you typically see in modern GPUs.
+ * This means it has a very simple interface, in principle. You feed demuxed
+ * packets in one end and get decoded picture (fields/frames) out the other.
+ *
+ * Of course, nothing is ever that simple. Due, at the very least, to b-frame
+ * dependencies in the supported formats, the hardware has a delay between
+ * when a packet goes in, and when a picture comes out. Furthermore, this delay
+ * is not just a function of time, but also one of the dependency on additional
+ * frames being fed into the decoder to satisfy the b-frame dependencies.
+ *
+ * As such, a pipeline will build up that is roughly equivalent to the required
+ * DPB for the file being played. If that was all it took, things would still
+ * be simple - so, of course, it isn't.
+ *
+ * The hardware has a way of indicating that a picture is ready to be copied out,
+ * but this is unreliable - and sometimes the attempt will still fail so, based
+ * on testing, the code will wait until 3 pictures are ready before starting
+ * to copy out - and this has the effect of extending the pipeline.
+ *
+ * Finally, while it is tempting to say that once the decoder starts outputting
+ * frames, the software should never fail to return a frame from a decode(),
+ * this is a hard assertion to make, because the stream may switch between
+ * differently encoded content (number of b-frames, interlacing, etc) which
+ * might require a longer pipeline than before. If that happened, you could
+ * deadlock trying to retrieve a frame that can't be decoded without feeding
+ * in additional packets.
+ *
+ * As such, the code will return in the event that a picture cannot be copied
+ * out, leading to an increase in the length of the pipeline. This in turn,
+ * means we have to be sensitive to the time it takes to decode a picture;
+ * We do not want to give up just because the hardware needed a little more
+ * time to prepare the picture! For this reason, there are delays included
+ * in the decode() path that ensure that, under normal conditions, the hardware
+ * will only fail to return a frame if it really needs additional packets to
+ * complete the decoding.
+ *
+ * Finally, to be explicit, we do not want the pipeline to grow without bound
+ * for two reasons: 1) The hardware can only buffer a finite number of packets,
+ * and 2) The client application may not be able to cope with arbitrarily long
+ * delays in the video path relative to the audio path. For example. MPlayer
+ * can only handle a 20 picture delay (although this is arbitrary, and needs
+ * to be extended to fully support the CrystalHD where the delay could be up
+ * to 32 pictures - consider PAFF H.264 content with 16 b-frames).
+ */
+
+/*****************************************************************************
+ * Includes
+ ****************************************************************************/
+
+#define _XOPEN_SOURCE 600
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <libcrystalhd/bc_dts_types.h>
+#include <libcrystalhd/bc_dts_defs.h>
+#include <libcrystalhd/libcrystalhd_if.h>
+
+#include "avcodec.h"
+#include "h264.h"
++#include "internal.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/opt.h"
+
+/** Timeout parameter passed to DtsProcOutput() in us */
+#define OUTPUT_PROC_TIMEOUT 50
+/** Step between fake timestamps passed to hardware in units of 100ns */
+#define TIMESTAMP_UNIT 100000
+/** Initial value in us of the wait in decode() */
+#define BASE_WAIT 10000
+/** Increment in us to adjust wait in decode() */
+#define WAIT_UNIT 1000
+
+
+/*****************************************************************************
+ * Module private data
+ ****************************************************************************/
+
+typedef enum {
+ RET_ERROR = -1,
+ RET_OK = 0,
+ RET_COPY_AGAIN = 1,
+ RET_SKIP_NEXT_COPY = 2,
+ RET_COPY_NEXT_FIELD = 3,
+} CopyRet;
+
+typedef struct OpaqueList {
+ struct OpaqueList *next;
+ uint64_t fake_timestamp;
+ uint64_t reordered_opaque;
+ uint8_t pic_type;
+} OpaqueList;
+
+typedef struct {
+ AVClass *av_class;
+ AVCodecContext *avctx;
+ AVFrame pic;
+ HANDLE dev;
+
+ uint8_t *orig_extradata;
+ uint32_t orig_extradata_size;
+
+ AVBitStreamFilterContext *bsfc;
+ AVCodecParserContext *parser;
+
+ uint8_t is_70012;
+ uint8_t *sps_pps_buf;
+ uint32_t sps_pps_size;
+ uint8_t is_nal;
+ uint8_t output_ready;
+ uint8_t need_second_field;
+ uint8_t skip_next_output;
+ uint64_t decode_wait;
+
+ uint64_t last_picture;
+
+ OpaqueList *head;
+ OpaqueList *tail;
+
+ /* Options */
+ uint32_t sWidth;
+ uint8_t bframe_bug;
+} CHDContext;
+
+static const AVOption options[] = {
+ { "crystalhd_downscale_width",
+ "Turn on downscaling to the specified width",
+ offsetof(CHDContext, sWidth),
+ AV_OPT_TYPE_INT, {.i64 = 0}, 0, UINT32_MAX,
+ AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, },
+ { NULL, },
+};
+
+
+/*****************************************************************************
+ * Helper functions
+ ****************************************************************************/
+
+static inline BC_MEDIA_SUBTYPE id2subtype(CHDContext *priv, enum AVCodecID id)
+{
+ switch (id) {
+ case AV_CODEC_ID_MPEG4:
+ return BC_MSUBTYPE_DIVX;
+ case AV_CODEC_ID_MSMPEG4V3:
+ return BC_MSUBTYPE_DIVX311;
+ case AV_CODEC_ID_MPEG2VIDEO:
+ return BC_MSUBTYPE_MPEG2VIDEO;
+ case AV_CODEC_ID_VC1:
+ return BC_MSUBTYPE_VC1;
+ case AV_CODEC_ID_WMV3:
+ return BC_MSUBTYPE_WMV3;
+ case AV_CODEC_ID_H264:
+ return priv->is_nal ? BC_MSUBTYPE_AVC1 : BC_MSUBTYPE_H264;
+ default:
+ return BC_MSUBTYPE_INVALID;
+ }
+}
+
+static inline void print_frame_info(CHDContext *priv, BC_DTS_PROC_OUT *output)
+{
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tYBuffSz: %u\n", output->YbuffSz);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tYBuffDoneSz: %u\n",
+ output->YBuffDoneSz);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tUVBuffDoneSz: %u\n",
+ output->UVBuffDoneSz);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tTimestamp: %"PRIu64"\n",
+ output->PicInfo.timeStamp);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tPicture Number: %u\n",
+ output->PicInfo.picture_number);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tWidth: %u\n",
+ output->PicInfo.width);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tHeight: %u\n",
+ output->PicInfo.height);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tChroma: 0x%03x\n",
+ output->PicInfo.chroma_format);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tPulldown: %u\n",
+ output->PicInfo.pulldown);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tFlags: 0x%08x\n",
+ output->PicInfo.flags);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tFrame Rate/Res: %u\n",
+ output->PicInfo.frame_rate);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tAspect Ratio: %u\n",
+ output->PicInfo.aspect_ratio);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tColor Primaries: %u\n",
+ output->PicInfo.colour_primaries);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tMetaData: %u\n",
+ output->PicInfo.picture_meta_payload);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tSession Number: %u\n",
+ output->PicInfo.sess_num);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tycom: %u\n",
+ output->PicInfo.ycom);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tCustom Aspect: %u\n",
+ output->PicInfo.custom_aspect_ratio_width_height);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tFrames to Drop: %u\n",
+ output->PicInfo.n_drop);
+ av_log(priv->avctx, AV_LOG_VERBOSE, "\tH264 Valid Fields: 0x%08x\n",
+ output->PicInfo.other.h264.valid);
+}
+
+
+/*****************************************************************************
+ * OpaqueList functions
+ ****************************************************************************/
+
+static uint64_t opaque_list_push(CHDContext *priv, uint64_t reordered_opaque,
+ uint8_t pic_type)
+{
+ OpaqueList *newNode = av_mallocz(sizeof (OpaqueList));
+ if (!newNode) {
+ av_log(priv->avctx, AV_LOG_ERROR,
+ "Unable to allocate new node in OpaqueList.\n");
+ return 0;
+ }
+ if (!priv->head) {
+ newNode->fake_timestamp = TIMESTAMP_UNIT;
+ priv->head = newNode;
+ } else {
+ newNode->fake_timestamp = priv->tail->fake_timestamp + TIMESTAMP_UNIT;
+ priv->tail->next = newNode;
+ }
+ priv->tail = newNode;
+ newNode->reordered_opaque = reordered_opaque;
+ newNode->pic_type = pic_type;
+
+ return newNode->fake_timestamp;
+}
+
+/*
+ * The OpaqueList is built in decode order, while elements will be removed
+ * in presentation order. If frames are reordered, this means we must be
+ * able to remove elements that are not the first element.
+ *
+ * Returned node must be freed by caller.
+ */
+static OpaqueList *opaque_list_pop(CHDContext *priv, uint64_t fake_timestamp)
+{
+ OpaqueList *node = priv->head;
+
+ if (!priv->head) {
+ av_log(priv->avctx, AV_LOG_ERROR,
+ "CrystalHD: Attempted to query non-existent timestamps.\n");
+ return NULL;
+ }
+
+ /*
+ * The first element is special-cased because we have to manipulate
+ * the head pointer rather than the previous element in the list.
+ */
+ if (priv->head->fake_timestamp == fake_timestamp) {
+ priv->head = node->next;
+
+ if (!priv->head->next)
+ priv->tail = priv->head;
+
+ node->next = NULL;
+ return node;
+ }
+
+ /*
+ * The list is processed at arm's length so that we have the
+ * previous element available to rewrite its next pointer.
+ */
+ while (node->next) {
+ OpaqueList *current = node->next;
+ if (current->fake_timestamp == fake_timestamp) {
+ node->next = current->next;
+
+ if (!node->next)
+ priv->tail = node;
+
+ current->next = NULL;
+ return current;
+ } else {
+ node = current;
+ }
+ }
+
+ av_log(priv->avctx, AV_LOG_VERBOSE,
+ "CrystalHD: Couldn't match fake_timestamp.\n");
+ return NULL;
+}
+
+
+/*****************************************************************************
+ * Video decoder API function definitions
+ ****************************************************************************/
+
+static void flush(AVCodecContext *avctx)
+{
+ CHDContext *priv = avctx->priv_data;
+
+ avctx->has_b_frames = 0;
+ priv->last_picture = -1;
+ priv->output_ready = 0;
+ priv->need_second_field = 0;
+ priv->skip_next_output = 0;
+ priv->decode_wait = BASE_WAIT;
+
+ if (priv->pic.data[0])
+ avctx->release_buffer(avctx, &priv->pic);
+
+ /* Flush mode 4 flushes all software and hardware buffers. */
+ DtsFlushInput(priv->dev, 4);
+}
+
+
+static av_cold int uninit(AVCodecContext *avctx)
+{
+ CHDContext *priv = avctx->priv_data;
+ HANDLE device;
+
+ device = priv->dev;
+ DtsStopDecoder(device);
+ DtsCloseDecoder(device);
+ DtsDeviceClose(device);
+
+ /*
+ * Restore original extradata, so that if the decoder is
+ * reinitialised, the bitstream detection and filtering
+ * will work as expected.
+ */
+ if (priv->orig_extradata) {
+ av_free(avctx->extradata);
+ avctx->extradata = priv->orig_extradata;
+ avctx->extradata_size = priv->orig_extradata_size;
+ priv->orig_extradata = NULL;
+ priv->orig_extradata_size = 0;
+ }
+
+ av_parser_close(priv->parser);
+ if (priv->bsfc) {
+ av_bitstream_filter_close(priv->bsfc);
+ }
+
+ av_free(priv->sps_pps_buf);
+
+ if (priv->pic.data[0])
+ avctx->release_buffer(avctx, &priv->pic);
+
+ if (priv->head) {
+ OpaqueList *node = priv->head;
+ while (node) {
+ OpaqueList *next = node->next;
+ av_free(node);
+ node = next;
+ }
+ }
+
+ return 0;
+}
+
+
+static av_cold int init(AVCodecContext *avctx)
+{
+ CHDContext* priv;
+ BC_STATUS ret;
+ BC_INFO_CRYSTAL version;
+ BC_INPUT_FORMAT format = {
+ .FGTEnable = FALSE,
+ .Progressive = TRUE,
+ .OptFlags = 0x80000000 | vdecFrameRate59_94 | 0x40,
+ .width = avctx->width,
+ .height = avctx->height,
+ };
+
+ BC_MEDIA_SUBTYPE subtype;
+
+ uint32_t mode = DTS_PLAYBACK_MODE |
+ DTS_LOAD_FILE_PLAY_FW |
+ DTS_SKIP_TX_CHK_CPB |
+ DTS_PLAYBACK_DROP_RPT_MODE |
+ DTS_SINGLE_THREADED_MODE |
+ DTS_DFLT_RESOLUTION(vdecRESOLUTION_1080p23_976);
+
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD Init for %s\n",
+ avctx->codec->name);
+
+ avctx->pix_fmt = AV_PIX_FMT_YUYV422;
+
+ /* Initialize the library */
+ priv = avctx->priv_data;
+ priv->avctx = avctx;
+ priv->is_nal = avctx->extradata_size > 0 && *(avctx->extradata) == 1;
+ priv->last_picture = -1;
+ priv->decode_wait = BASE_WAIT;
+
+ subtype = id2subtype(priv, avctx->codec->id);
+ switch (subtype) {
+ case BC_MSUBTYPE_AVC1:
+ {
+ uint8_t *dummy_p;
+ int dummy_int;
+
+ /* Back up the extradata so it can be restored at close time. */
+ priv->orig_extradata = av_malloc(avctx->extradata_size);
+ if (!priv->orig_extradata) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Failed to allocate copy of extradata\n");
+ return AVERROR(ENOMEM);
+ }
+ priv->orig_extradata_size = avctx->extradata_size;
+ memcpy(priv->orig_extradata, avctx->extradata, avctx->extradata_size);
+
+ priv->bsfc = av_bitstream_filter_init("h264_mp4toannexb");
+ if (!priv->bsfc) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Cannot open the h264_mp4toannexb BSF!\n");
+ return AVERROR_BSF_NOT_FOUND;
+ }
+ av_bitstream_filter_filter(priv->bsfc, avctx, NULL, &dummy_p,
+ &dummy_int, NULL, 0, 0);
+ }
+ subtype = BC_MSUBTYPE_H264;
+ // Fall-through
+ case BC_MSUBTYPE_H264:
+ format.startCodeSz = 4;
+ // Fall-through
+ case BC_MSUBTYPE_VC1:
+ case BC_MSUBTYPE_WVC1:
+ case BC_MSUBTYPE_WMV3:
+ case BC_MSUBTYPE_WMVA:
+ case BC_MSUBTYPE_MPEG2VIDEO:
+ case BC_MSUBTYPE_DIVX:
+ case BC_MSUBTYPE_DIVX311:
+ format.pMetaData = avctx->extradata;
+ format.metaDataSz = avctx->extradata_size;
+ break;
+ default:
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: Unknown codec name\n");
+ return AVERROR(EINVAL);
+ }
+ format.mSubtype = subtype;
+
+ if (priv->sWidth) {
+ format.bEnableScaling = 1;
+ format.ScalingParams.sWidth = priv->sWidth;
+ }
+
+ /* Get a decoder instance */
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: starting up\n");
+ // Initialize the Link and Decoder devices
+ ret = DtsDeviceOpen(&priv->dev, mode);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: DtsDeviceOpen failed\n");
+ goto fail;
+ }
+
+ ret = DtsCrystalHDVersion(priv->dev, &version);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_VERBOSE,
+ "CrystalHD: DtsCrystalHDVersion failed\n");
+ goto fail;
+ }
+ priv->is_70012 = version.device == 0;
+
+ if (priv->is_70012 &&
+ (subtype == BC_MSUBTYPE_DIVX || subtype == BC_MSUBTYPE_DIVX311)) {
+ av_log(avctx, AV_LOG_VERBOSE,
+ "CrystalHD: BCM70012 doesn't support MPEG4-ASP/DivX/Xvid\n");
+ goto fail;
+ }
+
+ ret = DtsSetInputFormat(priv->dev, &format);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: SetInputFormat failed\n");
+ goto fail;
+ }
+
+ ret = DtsOpenDecoder(priv->dev, BC_STREAM_TYPE_ES);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsOpenDecoder failed\n");
+ goto fail;
+ }
+
+ ret = DtsSetColorSpace(priv->dev, OUTPUT_MODE422_YUY2);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsSetColorSpace failed\n");
+ goto fail;
+ }
+ ret = DtsStartDecoder(priv->dev);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsStartDecoder failed\n");
+ goto fail;
+ }
+ ret = DtsStartCapture(priv->dev);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsStartCapture failed\n");
+ goto fail;
+ }
+
+ if (avctx->codec->id == AV_CODEC_ID_H264) {
+ priv->parser = av_parser_init(avctx->codec->id);
+ if (!priv->parser)
+ av_log(avctx, AV_LOG_WARNING,
+ "Cannot open the h.264 parser! Interlaced h.264 content "
+ "will not be detected reliably.\n");
+ priv->parser->flags = PARSER_FLAG_COMPLETE_FRAMES;
+ }
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Init complete.\n");
+
+ return 0;
+
+ fail:
+ uninit(avctx);
+ return -1;
+}
+
+
+static inline CopyRet copy_frame(AVCodecContext *avctx,
+ BC_DTS_PROC_OUT *output,
+ void *data, int *data_size)
+{
+ BC_STATUS ret;
+ BC_DTS_STATUS decoder_status = { 0, };
+ uint8_t trust_interlaced;
+ uint8_t interlaced;
+
+ CHDContext *priv = avctx->priv_data;
+ int64_t pkt_pts = AV_NOPTS_VALUE;
+ uint8_t pic_type = 0;
+
+ uint8_t bottom_field = (output->PicInfo.flags & VDEC_FLAG_BOTTOMFIELD) ==
+ VDEC_FLAG_BOTTOMFIELD;
+ uint8_t bottom_first = !!(output->PicInfo.flags & VDEC_FLAG_BOTTOM_FIRST);
+
+ int width = output->PicInfo.width;
+ int height = output->PicInfo.height;
+ int bwidth;
+ uint8_t *src = output->Ybuff;
+ int sStride;
+ uint8_t *dst;
+ int dStride;
+
+ if (output->PicInfo.timeStamp != 0) {
+ OpaqueList *node = opaque_list_pop(priv, output->PicInfo.timeStamp);
+ if (node) {
+ pkt_pts = node->reordered_opaque;
+ pic_type = node->pic_type;
+ av_free(node);
+ } else {
+ /*
+ * We will encounter a situation where a timestamp cannot be
+ * popped if a second field is being returned. In this case,
+ * each field has the same timestamp and the first one will
+ * cause it to be popped. To keep subsequent calculations
+ * simple, pic_type should be set a FIELD value - doesn't
+ * matter which, but I chose BOTTOM.
+ */
+ pic_type = PICT_BOTTOM_FIELD;
+ }
+ av_log(avctx, AV_LOG_VERBOSE, "output \"pts\": %"PRIu64"\n",
+ output->PicInfo.timeStamp);
+ av_log(avctx, AV_LOG_VERBOSE, "output picture type %d\n",
+ pic_type);
+ }
+
+ ret = DtsGetDriverStatus(priv->dev, &decoder_status);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR,
+ "CrystalHD: GetDriverStatus failed: %u\n", ret);
+ return RET_ERROR;
+ }
+
+ /*
+ * For most content, we can trust the interlaced flag returned
+ * by the hardware, but sometimes we can't. These are the
+ * conditions under which we can trust the flag:
+ *
+ * 1) It's not h.264 content
+ * 2) The UNKNOWN_SRC flag is not set
+ * 3) We know we're expecting a second field
+ * 4) The hardware reports this picture and the next picture
+ * have the same picture number.
+ *
+ * Note that there can still be interlaced content that will
+ * fail this check, if the hardware hasn't decoded the next
+ * picture or if there is a corruption in the stream. (In either
+ * case a 0 will be returned for the next picture number)
+ */
+ trust_interlaced = avctx->codec->id != AV_CODEC_ID_H264 ||
+ !(output->PicInfo.flags & VDEC_FLAG_UNKNOWN_SRC) ||
+ priv->need_second_field ||
+ (decoder_status.picNumFlags & ~0x40000000) ==
+ output->PicInfo.picture_number;
+
+ /*
+ * If we got a false negative for trust_interlaced on the first field,
+ * we will realise our mistake here when we see that the picture number is that
+ * of the previous picture. We cannot recover the frame and should discard the
+ * second field to keep the correct number of output frames.
+ */
+ if (output->PicInfo.picture_number == priv->last_picture && !priv->need_second_field) {
+ av_log(avctx, AV_LOG_WARNING,
+ "Incorrectly guessed progressive frame. Discarding second field\n");
+ /* Returning without providing a picture. */
+ return RET_OK;
+ }
+
+ interlaced = (output->PicInfo.flags & VDEC_FLAG_INTERLACED_SRC) &&
+ trust_interlaced;
+
+ if (!trust_interlaced && (decoder_status.picNumFlags & ~0x40000000) == 0) {
+ av_log(avctx, AV_LOG_VERBOSE,
+ "Next picture number unknown. Assuming progressive frame.\n");
+ }
+
+ av_log(avctx, AV_LOG_VERBOSE, "Interlaced state: %d | trust_interlaced %d\n",
+ interlaced, trust_interlaced);
+
+ if (priv->pic.data[0] && !priv->need_second_field)
+ avctx->release_buffer(avctx, &priv->pic);
+
+ priv->need_second_field = interlaced && !priv->need_second_field;
+
+ priv->pic.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE |
+ FF_BUFFER_HINTS_REUSABLE;
+ if (!priv->pic.data[0]) {
++ if (ff_get_buffer(avctx, &priv->pic) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return RET_ERROR;
+ }
+ }
+
+ bwidth = av_image_get_linesize(avctx->pix_fmt, width, 0);
+ if (priv->is_70012) {
+ int pStride;
+
+ if (width <= 720)
+ pStride = 720;
+ else if (width <= 1280)
+ pStride = 1280;
+ else pStride = 1920;
+ sStride = av_image_get_linesize(avctx->pix_fmt, pStride, 0);
+ } else {
+ sStride = bwidth;
+ }
+
+ dStride = priv->pic.linesize[0];
+ dst = priv->pic.data[0];
+
+ av_log(priv->avctx, AV_LOG_VERBOSE, "CrystalHD: Copying out frame\n");
+
+ if (interlaced) {
+ int dY = 0;
+ int sY = 0;
+
+ height /= 2;
+ if (bottom_field) {
+ av_log(priv->avctx, AV_LOG_VERBOSE, "Interlaced: bottom field\n");
+ dY = 1;
+ } else {
+ av_log(priv->avctx, AV_LOG_VERBOSE, "Interlaced: top field\n");
+ dY = 0;
+ }
+
+ for (sY = 0; sY < height; dY++, sY++) {
+ memcpy(&(dst[dY * dStride]), &(src[sY * sStride]), bwidth);
+ dY++;
+ }
+ } else {
+ av_image_copy_plane(dst, dStride, src, sStride, bwidth, height);
+ }
+
+ priv->pic.interlaced_frame = interlaced;
+ if (interlaced)
+ priv->pic.top_field_first = !bottom_first;
+
+ priv->pic.pkt_pts = pkt_pts;
+
+ if (!priv->need_second_field) {
+ *data_size = sizeof(AVFrame);
+ *(AVFrame *)data = priv->pic;
+ }
+
+ /*
+ * Two types of PAFF content have been observed. One form causes the
+ * hardware to return a field pair and the other individual fields,
+ * even though the input is always individual fields. We must skip
+ * copying on the next decode() call to maintain pipeline length in
+ * the first case.
+ */
+ if (!interlaced && (output->PicInfo.flags & VDEC_FLAG_UNKNOWN_SRC) &&
+ (pic_type == PICT_TOP_FIELD || pic_type == PICT_BOTTOM_FIELD)) {
+ av_log(priv->avctx, AV_LOG_VERBOSE, "Fieldpair from two packets.\n");
+ return RET_SKIP_NEXT_COPY;
+ }
+
+ /*
+ * The logic here is purely based on empirical testing with samples.
+ * If we need a second field, it could come from a second input packet,
+ * or it could come from the same field-pair input packet at the current
+ * field. In the first case, we should return and wait for the next time
+ * round to get the second field, while in the second case, we should
+ * ask the decoder for it immediately.
+ *
+ * Testing has shown that we are dealing with the fieldpair -> two fields
+ * case if the VDEC_FLAG_UNKNOWN_SRC is not set or if the input picture
+ * type was PICT_FRAME (in this second case, the flag might still be set)
+ */
+ return priv->need_second_field &&
+ (!(output->PicInfo.flags & VDEC_FLAG_UNKNOWN_SRC) ||
+ pic_type == PICT_FRAME) ?
+ RET_COPY_NEXT_FIELD : RET_OK;
+}
+
+
+static inline CopyRet receive_frame(AVCodecContext *avctx,
+ void *data, int *data_size)
+{
+ BC_STATUS ret;
+ BC_DTS_PROC_OUT output = {
+ .PicInfo.width = avctx->width,
+ .PicInfo.height = avctx->height,
+ };
+ CHDContext *priv = avctx->priv_data;
+ HANDLE dev = priv->dev;
+
+ *data_size = 0;
+
+ // Request decoded data from the driver
+ ret = DtsProcOutputNoCopy(dev, OUTPUT_PROC_TIMEOUT, &output);
+ if (ret == BC_STS_FMT_CHANGE) {
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Initial format change\n");
+ avctx->width = output.PicInfo.width;
+ avctx->height = output.PicInfo.height;
+ switch ( output.PicInfo.aspect_ratio ) {
+ case vdecAspectRatioSquare:
+ avctx->sample_aspect_ratio = (AVRational) { 1, 1};
+ break;
+ case vdecAspectRatio12_11:
+ avctx->sample_aspect_ratio = (AVRational) { 12, 11};
+ break;
+ case vdecAspectRatio10_11:
+ avctx->sample_aspect_ratio = (AVRational) { 10, 11};
+ break;
+ case vdecAspectRatio16_11:
+ avctx->sample_aspect_ratio = (AVRational) { 16, 11};
+ break;
+ case vdecAspectRatio40_33:
+ avctx->sample_aspect_ratio = (AVRational) { 40, 33};
+ break;
+ case vdecAspectRatio24_11:
+ avctx->sample_aspect_ratio = (AVRational) { 24, 11};
+ break;
+ case vdecAspectRatio20_11:
+ avctx->sample_aspect_ratio = (AVRational) { 20, 11};
+ break;
+ case vdecAspectRatio32_11:
+ avctx->sample_aspect_ratio = (AVRational) { 32, 11};
+ break;
+ case vdecAspectRatio80_33:
+ avctx->sample_aspect_ratio = (AVRational) { 80, 33};
+ break;
+ case vdecAspectRatio18_11:
+ avctx->sample_aspect_ratio = (AVRational) { 18, 11};
+ break;
+ case vdecAspectRatio15_11:
+ avctx->sample_aspect_ratio = (AVRational) { 15, 11};
+ break;
+ case vdecAspectRatio64_33:
+ avctx->sample_aspect_ratio = (AVRational) { 64, 33};
+ break;
+ case vdecAspectRatio160_99:
+ avctx->sample_aspect_ratio = (AVRational) {160, 99};
+ break;
+ case vdecAspectRatio4_3:
+ avctx->sample_aspect_ratio = (AVRational) { 4, 3};
+ break;
+ case vdecAspectRatio16_9:
+ avctx->sample_aspect_ratio = (AVRational) { 16, 9};
+ break;
+ case vdecAspectRatio221_1:
+ avctx->sample_aspect_ratio = (AVRational) {221, 1};
+ break;
+ }
+ return RET_COPY_AGAIN;
+ } else if (ret == BC_STS_SUCCESS) {
+ int copy_ret = -1;
+ if (output.PoutFlags & BC_POUT_FLAGS_PIB_VALID) {
+ if (priv->last_picture == -1) {
+ /*
+ * Init to one less, so that the incrementing code doesn't
+ * need to be special-cased.
+ */
+ priv->last_picture = output.PicInfo.picture_number - 1;
+ }
+
+ if (avctx->codec->id == AV_CODEC_ID_MPEG4 &&
+ output.PicInfo.timeStamp == 0 && priv->bframe_bug) {
+ av_log(avctx, AV_LOG_VERBOSE,
+ "CrystalHD: Not returning packed frame twice.\n");
+ priv->last_picture++;
+ DtsReleaseOutputBuffs(dev, NULL, FALSE);
+ return RET_COPY_AGAIN;
+ }
+
+ print_frame_info(priv, &output);
+
+ if (priv->last_picture + 1 < output.PicInfo.picture_number) {
+ av_log(avctx, AV_LOG_WARNING,
+ "CrystalHD: Picture Number discontinuity\n");
+ /*
+ * Have we lost frames? If so, we need to shrink the
+ * pipeline length appropriately.
+ *
+ * XXX: I have no idea what the semantics of this situation
+ * are so I don't even know if we've lost frames or which
+ * ones.
+ *
+ * In any case, only warn the first time.
+ */
+ priv->last_picture = output.PicInfo.picture_number - 1;
+ }
+
+ copy_ret = copy_frame(avctx, &output, data, data_size);
+ if (*data_size > 0) {
+ avctx->has_b_frames--;
+ priv->last_picture++;
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Pipeline length: %u\n",
+ avctx->has_b_frames);
+ }
+ } else {
+ /*
+ * An invalid frame has been consumed.
+ */
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: ProcOutput succeeded with "
+ "invalid PIB\n");
+ avctx->has_b_frames--;
+ copy_ret = RET_OK;
+ }
+ DtsReleaseOutputBuffs(dev, NULL, FALSE);
+
+ return copy_ret;
+ } else if (ret == BC_STS_BUSY) {
+ return RET_COPY_AGAIN;
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: ProcOutput failed %d\n", ret);
+ return RET_ERROR;
+ }
+}
+
+
+static int decode(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+{
+ BC_STATUS ret;
+ BC_DTS_STATUS decoder_status = { 0, };
+ CopyRet rec_ret;
+ CHDContext *priv = avctx->priv_data;
+ HANDLE dev = priv->dev;
+ uint8_t *in_data = avpkt->data;
+ int len = avpkt->size;
+ int free_data = 0;
+ uint8_t pic_type = 0;
+
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: decode_frame\n");
+
+ if (avpkt->size == 7 && !priv->bframe_bug) {
+ /*
+ * The use of a drop frame triggers the bug
+ */
+ av_log(avctx, AV_LOG_INFO,
+ "CrystalHD: Enabling work-around for packed b-frame bug\n");
+ priv->bframe_bug = 1;
+ } else if (avpkt->size == 8 && priv->bframe_bug) {
+ /*
+ * Delay frames don't trigger the bug
+ */
+ av_log(avctx, AV_LOG_INFO,
+ "CrystalHD: Disabling work-around for packed b-frame bug\n");
+ priv->bframe_bug = 0;
+ }
+
+ if (len) {
+ int32_t tx_free = (int32_t)DtsTxFreeSize(dev);
+
+ if (priv->parser) {
+ int ret = 0;
+
+ if (priv->bsfc) {
+ ret = av_bitstream_filter_filter(priv->bsfc, avctx, NULL,
+ &in_data, &len,
+ avpkt->data, len, 0);
+ }
+ free_data = ret > 0;
+
+ if (ret >= 0) {
+ uint8_t *pout;
+ int psize;
+ int index;
+ H264Context *h = priv->parser->priv_data;
+
+ index = av_parser_parse2(priv->parser, avctx, &pout, &psize,
+ in_data, len, avctx->pkt->pts,
+ avctx->pkt->dts, 0);
+ if (index < 0) {
+ av_log(avctx, AV_LOG_WARNING,
+ "CrystalHD: Failed to parse h.264 packet to "
+ "detect interlacing.\n");
+ } else if (index != len) {
+ av_log(avctx, AV_LOG_WARNING,
+ "CrystalHD: Failed to parse h.264 packet "
+ "completely. Interlaced frames may be "
+ "incorrectly detected.\n");
+ } else {
+ av_log(avctx, AV_LOG_VERBOSE,
+ "CrystalHD: parser picture type %d\n",
+ h->s.picture_structure);
+ pic_type = h->s.picture_structure;
+ }
+ } else {
+ av_log(avctx, AV_LOG_WARNING,
+ "CrystalHD: mp4toannexb filter failed to filter "
+ "packet. Interlaced frames may be incorrectly "
+ "detected.\n");
+ }
+ }
+
+ if (len < tx_free - 1024) {
+ /*
+ * Despite being notionally opaque, either libcrystalhd or
+ * the hardware itself will mangle pts values that are too
+ * small or too large. The docs claim it should be in units
+ * of 100ns. Given that we're nominally dealing with a black
+ * box on both sides, any transform we do has no guarantee of
+ * avoiding mangling so we need to build a mapping to values
+ * we know will not be mangled.
+ */
+ uint64_t pts = opaque_list_push(priv, avctx->pkt->pts, pic_type);
+ if (!pts) {
+ if (free_data) {
+ av_freep(&in_data);
+ }
+ return AVERROR(ENOMEM);
+ }
+ av_log(priv->avctx, AV_LOG_VERBOSE,
+ "input \"pts\": %"PRIu64"\n", pts);
+ ret = DtsProcInput(dev, in_data, len, pts, 0);
+ if (free_data) {
+ av_freep(&in_data);
+ }
+ if (ret == BC_STS_BUSY) {
+ av_log(avctx, AV_LOG_WARNING,
+ "CrystalHD: ProcInput returned busy\n");
+ usleep(BASE_WAIT);
+ return AVERROR(EBUSY);
+ } else if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR,
+ "CrystalHD: ProcInput failed: %u\n", ret);
+ return -1;
+ }
+ avctx->has_b_frames++;
+ } else {
+ av_log(avctx, AV_LOG_WARNING, "CrystalHD: Input buffer full\n");
+ len = 0; // We didn't consume any bytes.
+ }
+ } else {
+ av_log(avctx, AV_LOG_INFO, "CrystalHD: No more input data\n");
+ }
+
+ if (priv->skip_next_output) {
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Skipping next output.\n");
+ priv->skip_next_output = 0;
+ avctx->has_b_frames--;
+ return len;
+ }
+
+ ret = DtsGetDriverStatus(dev, &decoder_status);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: GetDriverStatus failed\n");
+ return -1;
+ }
+
+ /*
+ * No frames ready. Don't try to extract.
+ *
+ * Empirical testing shows that ReadyListCount can be a damn lie,
+ * and ProcOut still fails when count > 0. The same testing showed
+ * that two more iterations were needed before ProcOutput would
+ * succeed.
+ */
+ if (priv->output_ready < 2) {
+ if (decoder_status.ReadyListCount != 0)
+ priv->output_ready++;
+ usleep(BASE_WAIT);
+ av_log(avctx, AV_LOG_INFO, "CrystalHD: Filling pipeline.\n");
+ return len;
+ } else if (decoder_status.ReadyListCount == 0) {
+ /*
+ * After the pipeline is established, if we encounter a lack of frames
+ * that probably means we're not giving the hardware enough time to
+ * decode them, so start increasing the wait time at the end of a
+ * decode call.
+ */
+ usleep(BASE_WAIT);
+ priv->decode_wait += WAIT_UNIT;
+ av_log(avctx, AV_LOG_INFO, "CrystalHD: No frames ready. Returning\n");
+ return len;
+ }
+
+ do {
+ rec_ret = receive_frame(avctx, data, data_size);
+ if (rec_ret == RET_OK && *data_size == 0) {
+ /*
+ * This case is for when the encoded fields are stored
+ * separately and we get a separate avpkt for each one. To keep
+ * the pipeline stable, we should return nothing and wait for
+ * the next time round to grab the second field.
+ * H.264 PAFF is an example of this.
+ */
+ av_log(avctx, AV_LOG_VERBOSE, "Returning after first field.\n");
+ avctx->has_b_frames--;
+ } else if (rec_ret == RET_COPY_NEXT_FIELD) {
+ /*
+ * This case is for when the encoded fields are stored in a
+ * single avpkt but the hardware returns then separately. Unless
+ * we grab the second field before returning, we'll slip another
+ * frame in the pipeline and if that happens a lot, we're sunk.
+ * So we have to get that second field now.
+ * Interlaced mpeg2 and vc1 are examples of this.
+ */
+ av_log(avctx, AV_LOG_VERBOSE, "Trying to get second field.\n");
+ while (1) {
+ usleep(priv->decode_wait);
+ ret = DtsGetDriverStatus(dev, &decoder_status);
+ if (ret == BC_STS_SUCCESS &&
+ decoder_status.ReadyListCount > 0) {
+ rec_ret = receive_frame(avctx, data, data_size);
+ if ((rec_ret == RET_OK && *data_size > 0) ||
+ rec_ret == RET_ERROR)
+ break;
+ }
+ }
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Got second field.\n");
+ } else if (rec_ret == RET_SKIP_NEXT_COPY) {
+ /*
+ * Two input packets got turned into a field pair. Gawd.
+ */
+ av_log(avctx, AV_LOG_VERBOSE,
+ "Don't output on next decode call.\n");
+ priv->skip_next_output = 1;
+ }
+ /*
+ * If rec_ret == RET_COPY_AGAIN, that means that either we just handled
+ * a FMT_CHANGE event and need to go around again for the actual frame,
+ * we got a busy status and need to try again, or we're dealing with
+ * packed b-frames, where the hardware strangely returns the packed
+ * p-frame twice. We choose to keep the second copy as it carries the
+ * valid pts.
+ */
+ } while (rec_ret == RET_COPY_AGAIN);
+ usleep(priv->decode_wait);
+ return len;
+}
+
+
+#if CONFIG_H264_CRYSTALHD_DECODER
+static AVClass h264_class = {
+ "h264_crystalhd",
+ av_default_item_name,
+ options,
+ LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_h264_crystalhd_decoder = {
+ .name = "h264_crystalhd",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_H264,
+ .priv_data_size = sizeof(CHDContext),
+ .init = init,
+ .close = uninit,
+ .decode = decode,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY,
+ .flush = flush,
+ .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (CrystalHD acceleration)"),
+ .pix_fmts = (const enum AVPixelFormat[]){AV_PIX_FMT_YUYV422, AV_PIX_FMT_NONE},
+ .priv_class = &h264_class,
+};
+#endif
+
+#if CONFIG_MPEG2_CRYSTALHD_DECODER
+static AVClass mpeg2_class = {
+ "mpeg2_crystalhd",
+ av_default_item_name,
+ options,
+ LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_mpeg2_crystalhd_decoder = {
+ .name = "mpeg2_crystalhd",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_MPEG2VIDEO,
+ .priv_data_size = sizeof(CHDContext),
+ .init = init,
+ .close = uninit,
+ .decode = decode,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY,
+ .flush = flush,
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 Video (CrystalHD acceleration)"),
+ .pix_fmts = (const enum AVPixelFormat[]){AV_PIX_FMT_YUYV422, AV_PIX_FMT_NONE},
+ .priv_class = &mpeg2_class,
+};
+#endif
+
+#if CONFIG_MPEG4_CRYSTALHD_DECODER
+static AVClass mpeg4_class = {
+ "mpeg4_crystalhd",
+ av_default_item_name,
+ options,
+ LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_mpeg4_crystalhd_decoder = {
+ .name = "mpeg4_crystalhd",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_MPEG4,
+ .priv_data_size = sizeof(CHDContext),
+ .init = init,
+ .close = uninit,
+ .decode = decode,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY,
+ .flush = flush,
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 Part 2 (CrystalHD acceleration)"),
+ .pix_fmts = (const enum AVPixelFormat[]){AV_PIX_FMT_YUYV422, AV_PIX_FMT_NONE},
+ .priv_class = &mpeg4_class,
+};
+#endif
+
+#if CONFIG_MSMPEG4_CRYSTALHD_DECODER
+static AVClass msmpeg4_class = {
+ "msmpeg4_crystalhd",
+ av_default_item_name,
+ options,
+ LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_msmpeg4_crystalhd_decoder = {
+ .name = "msmpeg4_crystalhd",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_MSMPEG4V3,
+ .priv_data_size = sizeof(CHDContext),
+ .init = init,
+ .close = uninit,
+ .decode = decode,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_EXPERIMENTAL,
+ .flush = flush,
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 Part 2 Microsoft variant version 3 (CrystalHD acceleration)"),
+ .pix_fmts = (const enum AVPixelFormat[]){AV_PIX_FMT_YUYV422, AV_PIX_FMT_NONE},
+ .priv_class = &msmpeg4_class,
+};
+#endif
+
+#if CONFIG_VC1_CRYSTALHD_DECODER
+static AVClass vc1_class = {
+ "vc1_crystalhd",
+ av_default_item_name,
+ options,
+ LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_vc1_crystalhd_decoder = {
+ .name = "vc1_crystalhd",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_VC1,
+ .priv_data_size = sizeof(CHDContext),
+ .init = init,
+ .close = uninit,
+ .decode = decode,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY,
+ .flush = flush,
+ .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1 (CrystalHD acceleration)"),
+ .pix_fmts = (const enum AVPixelFormat[]){AV_PIX_FMT_YUYV422, AV_PIX_FMT_NONE},
+ .priv_class = &vc1_class,
+};
+#endif
+
+#if CONFIG_WMV3_CRYSTALHD_DECODER
+static AVClass wmv3_class = {
+ "wmv3_crystalhd",
+ av_default_item_name,
+ options,
+ LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_wmv3_crystalhd_decoder = {
+ .name = "wmv3_crystalhd",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_WMV3,
+ .priv_data_size = sizeof(CHDContext),
+ .init = init,
+ .close = uninit,
+ .decode = decode,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY,
+ .flush = flush,
+ .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 (CrystalHD acceleration)"),
+ .pix_fmts = (const enum AVPixelFormat[]){AV_PIX_FMT_YUYV422, AV_PIX_FMT_NONE},
+ .priv_class = &wmv3_class,
+};
+#endif
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/avassert.h"
#include "avcodec.h"
#include "bytestream.h"
+ #include "internal.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
--- /dev/null
- s->avctx->get_buffer(s->avctx, &s->ref_pics[i]->avframe);
+/*
+ * Copyright (C) 2007 Marco Gerards <marco@gnu.org>
+ * Copyright (C) 2009 David Conrad
+ * Copyright (C) 2011 Jordi Ortiz
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Dirac Decoder
+ * @author Marco Gerards <marco@gnu.org>, David Conrad, Jordi Ortiz <nenjordi@gmail.com>
+ */
+
+#include "avcodec.h"
+#include "dsputil.h"
+#include "get_bits.h"
+#include "bytestream.h"
++#include "internal.h"
+#include "golomb.h"
+#include "dirac_arith.h"
+#include "mpeg12data.h"
+#include "dwt.h"
+#include "dirac.h"
+#include "diracdsp.h"
+
+/**
+ * The spec limits the number of wavelet decompositions to 4 for both
+ * level 1 (VC-2) and 128 (long-gop default).
+ * 5 decompositions is the maximum before >16-bit buffers are needed.
+ * Schroedinger allows this for DD 9,7 and 13,7 wavelets only, limiting
+ * the others to 4 decompositions (or 3 for the fidelity filter).
+ *
+ * We use this instead of MAX_DECOMPOSITIONS to save some memory.
+ */
+#define MAX_DWT_LEVELS 5
+
+/**
+ * The spec limits this to 3 for frame coding, but in practice can be as high as 6
+ */
+#define MAX_REFERENCE_FRAMES 8
+#define MAX_DELAY 5 /* limit for main profile for frame coding (TODO: field coding) */
+#define MAX_FRAMES (MAX_REFERENCE_FRAMES + MAX_DELAY + 1)
+#define MAX_QUANT 68 /* max quant for VC-2 */
+#define MAX_BLOCKSIZE 32 /* maximum xblen/yblen we support */
+
+/**
+ * DiracBlock->ref flags, if set then the block does MC from the given ref
+ */
+#define DIRAC_REF_MASK_REF1 1
+#define DIRAC_REF_MASK_REF2 2
+#define DIRAC_REF_MASK_GLOBAL 4
+
+/**
+ * Value of Picture.reference when Picture is not a reference picture, but
+ * is held for delayed output.
+ */
+#define DELAYED_PIC_REF 4
+
+#define ff_emulated_edge_mc ff_emulated_edge_mc_8 /* Fix: change the calls to this function regarding bit depth */
+
+#define CALC_PADDING(size, depth) \
+ (((size + (1 << depth) - 1) >> depth) << depth)
+
+#define DIVRNDUP(a, b) (((a) + (b) - 1) / (b))
+
+typedef struct {
+ AVFrame avframe;
+ int interpolated[3]; /* 1 if hpel[] is valid */
+ uint8_t *hpel[3][4];
+ uint8_t *hpel_base[3][4];
+} DiracFrame;
+
+typedef struct {
+ union {
+ int16_t mv[2][2];
+ int16_t dc[3];
+ } u; /* anonymous unions aren't in C99 :( */
+ uint8_t ref;
+} DiracBlock;
+
+typedef struct SubBand {
+ int level;
+ int orientation;
+ int stride;
+ int width;
+ int height;
+ int quant;
+ IDWTELEM *ibuf;
+ struct SubBand *parent;
+
+ /* for low delay */
+ unsigned length;
+ const uint8_t *coeff_data;
+} SubBand;
+
+typedef struct Plane {
+ int width;
+ int height;
+ int stride;
+
+ int idwt_width;
+ int idwt_height;
+ int idwt_stride;
+ IDWTELEM *idwt_buf;
+ IDWTELEM *idwt_buf_base;
+ IDWTELEM *idwt_tmp;
+
+ /* block length */
+ uint8_t xblen;
+ uint8_t yblen;
+ /* block separation (block n+1 starts after this many pixels in block n) */
+ uint8_t xbsep;
+ uint8_t ybsep;
+ /* amount of overspill on each edge (half of the overlap between blocks) */
+ uint8_t xoffset;
+ uint8_t yoffset;
+
+ SubBand band[MAX_DWT_LEVELS][4];
+} Plane;
+
+typedef struct DiracContext {
+ AVCodecContext *avctx;
+ DSPContext dsp;
+ DiracDSPContext diracdsp;
+ GetBitContext gb;
+ dirac_source_params source;
+ int seen_sequence_header;
+ int frame_number; /* number of the next frame to display */
+ Plane plane[3];
+ int chroma_x_shift;
+ int chroma_y_shift;
+
+ int zero_res; /* zero residue flag */
+ int is_arith; /* whether coeffs use arith or golomb coding */
+ int low_delay; /* use the low delay syntax */
+ int globalmc_flag; /* use global motion compensation */
+ int num_refs; /* number of reference pictures */
+
+ /* wavelet decoding */
+ unsigned wavelet_depth; /* depth of the IDWT */
+ unsigned wavelet_idx;
+
+ /**
+ * schroedinger older than 1.0.8 doesn't store
+ * quant delta if only one codebook exists in a band
+ */
+ unsigned old_delta_quant;
+ unsigned codeblock_mode;
+
+ struct {
+ unsigned width;
+ unsigned height;
+ } codeblock[MAX_DWT_LEVELS+1];
+
+ struct {
+ unsigned num_x; /* number of horizontal slices */
+ unsigned num_y; /* number of vertical slices */
+ AVRational bytes; /* average bytes per slice */
+ uint8_t quant[MAX_DWT_LEVELS][4]; /* [DIRAC_STD] E.1 */
+ } lowdelay;
+
+ struct {
+ int pan_tilt[2]; /* pan/tilt vector */
+ int zrs[2][2]; /* zoom/rotate/shear matrix */
+ int perspective[2]; /* perspective vector */
+ unsigned zrs_exp;
+ unsigned perspective_exp;
+ } globalmc[2];
+
+ /* motion compensation */
+ uint8_t mv_precision; /* [DIRAC_STD] REFS_WT_PRECISION */
+ int16_t weight[2]; /* [DIRAC_STD] REF1_WT and REF2_WT */
+ unsigned weight_log2denom; /* [DIRAC_STD] REFS_WT_PRECISION */
+
+ int blwidth; /* number of blocks (horizontally) */
+ int blheight; /* number of blocks (vertically) */
+ int sbwidth; /* number of superblocks (horizontally) */
+ int sbheight; /* number of superblocks (vertically) */
+
+ uint8_t *sbsplit;
+ DiracBlock *blmotion;
+
+ uint8_t *edge_emu_buffer[4];
+ uint8_t *edge_emu_buffer_base;
+
+ uint16_t *mctmp; /* buffer holding the MC data multipled by OBMC weights */
+ uint8_t *mcscratch;
+
+ DECLARE_ALIGNED(16, uint8_t, obmc_weight)[3][MAX_BLOCKSIZE*MAX_BLOCKSIZE];
+
+ void (*put_pixels_tab[4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
+ void (*avg_pixels_tab[4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
+ void (*add_obmc)(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
+ dirac_weight_func weight_func;
+ dirac_biweight_func biweight_func;
+
+ DiracFrame *current_picture;
+ DiracFrame *ref_pics[2];
+
+ DiracFrame *ref_frames[MAX_REFERENCE_FRAMES+1];
+ DiracFrame *delay_frames[MAX_DELAY+1];
+ DiracFrame all_frames[MAX_FRAMES];
+} DiracContext;
+
+/**
+ * Dirac Specification ->
+ * Parse code values. 9.6.1 Table 9.1
+ */
+enum dirac_parse_code {
+ pc_seq_header = 0x00,
+ pc_eos = 0x10,
+ pc_aux_data = 0x20,
+ pc_padding = 0x30,
+};
+
+enum dirac_subband {
+ subband_ll = 0,
+ subband_hl = 1,
+ subband_lh = 2,
+ subband_hh = 3
+};
+
+static const uint8_t default_qmat[][4][4] = {
+ { { 5, 3, 3, 0}, { 0, 4, 4, 1}, { 0, 5, 5, 2}, { 0, 6, 6, 3} },
+ { { 4, 2, 2, 0}, { 0, 4, 4, 2}, { 0, 5, 5, 3}, { 0, 7, 7, 5} },
+ { { 5, 3, 3, 0}, { 0, 4, 4, 1}, { 0, 5, 5, 2}, { 0, 6, 6, 3} },
+ { { 8, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0} },
+ { { 8, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0} },
+ { { 0, 4, 4, 8}, { 0, 8, 8, 12}, { 0, 13, 13, 17}, { 0, 17, 17, 21} },
+ { { 3, 1, 1, 0}, { 0, 4, 4, 2}, { 0, 6, 6, 5}, { 0, 9, 9, 7} },
+};
+
+static const int qscale_tab[MAX_QUANT+1] = {
+ 4, 5, 6, 7, 8, 10, 11, 13,
+ 16, 19, 23, 27, 32, 38, 45, 54,
+ 64, 76, 91, 108, 128, 152, 181, 215,
+ 256, 304, 362, 431, 512, 609, 724, 861,
+ 1024, 1218, 1448, 1722, 2048, 2435, 2896, 3444,
+ 4096, 4871, 5793, 6889, 8192, 9742, 11585, 13777,
+ 16384, 19484, 23170, 27554, 32768, 38968, 46341, 55109,
+ 65536, 77936
+};
+
+static const int qoffset_intra_tab[MAX_QUANT+1] = {
+ 1, 2, 3, 4, 4, 5, 6, 7,
+ 8, 10, 12, 14, 16, 19, 23, 27,
+ 32, 38, 46, 54, 64, 76, 91, 108,
+ 128, 152, 181, 216, 256, 305, 362, 431,
+ 512, 609, 724, 861, 1024, 1218, 1448, 1722,
+ 2048, 2436, 2897, 3445, 4096, 4871, 5793, 6889,
+ 8192, 9742, 11585, 13777, 16384, 19484, 23171, 27555,
+ 32768, 38968
+};
+
+static const int qoffset_inter_tab[MAX_QUANT+1] = {
+ 1, 2, 2, 3, 3, 4, 4, 5,
+ 6, 7, 9, 10, 12, 14, 17, 20,
+ 24, 29, 34, 41, 48, 57, 68, 81,
+ 96, 114, 136, 162, 192, 228, 272, 323,
+ 384, 457, 543, 646, 768, 913, 1086, 1292,
+ 1536, 1827, 2172, 2583, 3072, 3653, 4344, 5166,
+ 6144, 7307, 8689, 10333, 12288, 14613, 17378, 20666,
+ 24576, 29226
+};
+
+/* magic number division by 3 from schroedinger */
+static inline int divide3(int x)
+{
+ return ((x+1)*21845 + 10922) >> 16;
+}
+
+static DiracFrame *remove_frame(DiracFrame *framelist[], int picnum)
+{
+ DiracFrame *remove_pic = NULL;
+ int i, remove_idx = -1;
+
+ for (i = 0; framelist[i]; i++)
+ if (framelist[i]->avframe.display_picture_number == picnum) {
+ remove_pic = framelist[i];
+ remove_idx = i;
+ }
+
+ if (remove_pic)
+ for (i = remove_idx; framelist[i]; i++)
+ framelist[i] = framelist[i+1];
+
+ return remove_pic;
+}
+
+static int add_frame(DiracFrame *framelist[], int maxframes, DiracFrame *frame)
+{
+ int i;
+ for (i = 0; i < maxframes; i++)
+ if (!framelist[i]) {
+ framelist[i] = frame;
+ return 0;
+ }
+ return -1;
+}
+
+static int alloc_sequence_buffers(DiracContext *s)
+{
+ int sbwidth = DIVRNDUP(s->source.width, 4);
+ int sbheight = DIVRNDUP(s->source.height, 4);
+ int i, w, h, top_padding;
+
+ /* todo: think more about this / use or set Plane here */
+ for (i = 0; i < 3; i++) {
+ int max_xblen = MAX_BLOCKSIZE >> (i ? s->chroma_x_shift : 0);
+ int max_yblen = MAX_BLOCKSIZE >> (i ? s->chroma_y_shift : 0);
+ w = s->source.width >> (i ? s->chroma_x_shift : 0);
+ h = s->source.height >> (i ? s->chroma_y_shift : 0);
+
+ /* we allocate the max we support here since num decompositions can
+ * change from frame to frame. Stride is aligned to 16 for SIMD, and
+ * 1<<MAX_DWT_LEVELS top padding to avoid if(y>0) in arith decoding
+ * MAX_BLOCKSIZE padding for MC: blocks can spill up to half of that
+ * on each side */
+ top_padding = FFMAX(1<<MAX_DWT_LEVELS, max_yblen/2);
+ w = FFALIGN(CALC_PADDING(w, MAX_DWT_LEVELS), 8); /* FIXME: Should this be 16 for SSE??? */
+ h = top_padding + CALC_PADDING(h, MAX_DWT_LEVELS) + max_yblen/2;
+
+ s->plane[i].idwt_buf_base = av_mallocz((w+max_xblen)*h * sizeof(IDWTELEM));
+ s->plane[i].idwt_tmp = av_malloc((w+16) * sizeof(IDWTELEM));
+ s->plane[i].idwt_buf = s->plane[i].idwt_buf_base + top_padding*w;
+ if (!s->plane[i].idwt_buf_base || !s->plane[i].idwt_tmp)
+ return AVERROR(ENOMEM);
+ }
+
+ w = s->source.width;
+ h = s->source.height;
+
+ /* fixme: allocate using real stride here */
+ s->sbsplit = av_malloc(sbwidth * sbheight);
+ s->blmotion = av_malloc(sbwidth * sbheight * 16 * sizeof(*s->blmotion));
+ s->edge_emu_buffer_base = av_malloc((w+64)*MAX_BLOCKSIZE);
+
+ s->mctmp = av_malloc((w+64+MAX_BLOCKSIZE) * (h*MAX_BLOCKSIZE) * sizeof(*s->mctmp));
+ s->mcscratch = av_malloc((w+64)*MAX_BLOCKSIZE);
+
+ if (!s->sbsplit || !s->blmotion)
+ return AVERROR(ENOMEM);
+ return 0;
+}
+
+static void free_sequence_buffers(DiracContext *s)
+{
+ int i, j, k;
+
+ for (i = 0; i < MAX_FRAMES; i++) {
+ if (s->all_frames[i].avframe.data[0]) {
+ s->avctx->release_buffer(s->avctx, &s->all_frames[i].avframe);
+ memset(s->all_frames[i].interpolated, 0, sizeof(s->all_frames[i].interpolated));
+ }
+
+ for (j = 0; j < 3; j++)
+ for (k = 1; k < 4; k++)
+ av_freep(&s->all_frames[i].hpel_base[j][k]);
+ }
+
+ memset(s->ref_frames, 0, sizeof(s->ref_frames));
+ memset(s->delay_frames, 0, sizeof(s->delay_frames));
+
+ for (i = 0; i < 3; i++) {
+ av_freep(&s->plane[i].idwt_buf_base);
+ av_freep(&s->plane[i].idwt_tmp);
+ }
+
+ av_freep(&s->sbsplit);
+ av_freep(&s->blmotion);
+ av_freep(&s->edge_emu_buffer_base);
+
+ av_freep(&s->mctmp);
+ av_freep(&s->mcscratch);
+}
+
+static av_cold int dirac_decode_init(AVCodecContext *avctx)
+{
+ DiracContext *s = avctx->priv_data;
+ s->avctx = avctx;
+ s->frame_number = -1;
+
+ if (avctx->flags&CODEC_FLAG_EMU_EDGE) {
+ av_log(avctx, AV_LOG_ERROR, "Edge emulation not supported!\n");
+ return AVERROR_PATCHWELCOME;
+ }
+
+ ff_dsputil_init(&s->dsp, avctx);
+ ff_diracdsp_init(&s->diracdsp);
+
+ return 0;
+}
+
+static void dirac_decode_flush(AVCodecContext *avctx)
+{
+ DiracContext *s = avctx->priv_data;
+ free_sequence_buffers(s);
+ s->seen_sequence_header = 0;
+ s->frame_number = -1;
+}
+
+static av_cold int dirac_decode_end(AVCodecContext *avctx)
+{
+ dirac_decode_flush(avctx);
+ return 0;
+}
+
+#define SIGN_CTX(x) (CTX_SIGN_ZERO + ((x) > 0) - ((x) < 0))
+
+static inline void coeff_unpack_arith(DiracArith *c, int qfactor, int qoffset,
+ SubBand *b, IDWTELEM *buf, int x, int y)
+{
+ int coeff, sign;
+ int sign_pred = 0;
+ int pred_ctx = CTX_ZPZN_F1;
+
+ /* Check if the parent subband has a 0 in the corresponding position */
+ if (b->parent)
+ pred_ctx += !!b->parent->ibuf[b->parent->stride * (y>>1) + (x>>1)] << 1;
+
+ if (b->orientation == subband_hl)
+ sign_pred = buf[-b->stride];
+
+ /* Determine if the pixel has only zeros in its neighbourhood */
+ if (x) {
+ pred_ctx += !(buf[-1] | buf[-b->stride] | buf[-1-b->stride]);
+ if (b->orientation == subband_lh)
+ sign_pred = buf[-1];
+ } else {
+ pred_ctx += !buf[-b->stride];
+ }
+
+ coeff = dirac_get_arith_uint(c, pred_ctx, CTX_COEFF_DATA);
+ if (coeff) {
+ coeff = (coeff * qfactor + qoffset + 2) >> 2;
+ sign = dirac_get_arith_bit(c, SIGN_CTX(sign_pred));
+ coeff = (coeff ^ -sign) + sign;
+ }
+ *buf = coeff;
+}
+
+static inline int coeff_unpack_golomb(GetBitContext *gb, int qfactor, int qoffset)
+{
+ int sign, coeff;
+
+ coeff = svq3_get_ue_golomb(gb);
+ if (coeff) {
+ coeff = (coeff * qfactor + qoffset + 2) >> 2;
+ sign = get_bits1(gb);
+ coeff = (coeff ^ -sign) + sign;
+ }
+ return coeff;
+}
+
+/**
+ * Decode the coeffs in the rectangle defined by left, right, top, bottom
+ * [DIRAC_STD] 13.4.3.2 Codeblock unpacking loop. codeblock()
+ */
+static inline void codeblock(DiracContext *s, SubBand *b,
+ GetBitContext *gb, DiracArith *c,
+ int left, int right, int top, int bottom,
+ int blockcnt_one, int is_arith)
+{
+ int x, y, zero_block;
+ int qoffset, qfactor;
+ IDWTELEM *buf;
+
+ /* check for any coded coefficients in this codeblock */
+ if (!blockcnt_one) {
+ if (is_arith)
+ zero_block = dirac_get_arith_bit(c, CTX_ZERO_BLOCK);
+ else
+ zero_block = get_bits1(gb);
+
+ if (zero_block)
+ return;
+ }
+
+ if (s->codeblock_mode && !(s->old_delta_quant && blockcnt_one)) {
+ int quant = b->quant;
+ if (is_arith)
+ quant += dirac_get_arith_int(c, CTX_DELTA_Q_F, CTX_DELTA_Q_DATA);
+ else
+ quant += dirac_get_se_golomb(gb);
+ if (quant < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "Invalid quant\n");
+ return;
+ }
+ b->quant = quant;
+ }
+
+ b->quant = FFMIN(b->quant, MAX_QUANT);
+
+ qfactor = qscale_tab[b->quant];
+ /* TODO: context pointer? */
+ if (!s->num_refs)
+ qoffset = qoffset_intra_tab[b->quant];
+ else
+ qoffset = qoffset_inter_tab[b->quant];
+
+ buf = b->ibuf + top * b->stride;
+ for (y = top; y < bottom; y++) {
+ for (x = left; x < right; x++) {
+ /* [DIRAC_STD] 13.4.4 Subband coefficients. coeff_unpack() */
+ if (is_arith)
+ coeff_unpack_arith(c, qfactor, qoffset, b, buf+x, x, y);
+ else
+ buf[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
+ }
+ buf += b->stride;
+ }
+}
+
+/**
+ * Dirac Specification ->
+ * 13.3 intra_dc_prediction(band)
+ */
+static inline void intra_dc_prediction(SubBand *b)
+{
+ IDWTELEM *buf = b->ibuf;
+ int x, y;
+
+ for (x = 1; x < b->width; x++)
+ buf[x] += buf[x-1];
+ buf += b->stride;
+
+ for (y = 1; y < b->height; y++) {
+ buf[0] += buf[-b->stride];
+
+ for (x = 1; x < b->width; x++) {
+ int pred = buf[x - 1] + buf[x - b->stride] + buf[x - b->stride-1];
+ buf[x] += divide3(pred);
+ }
+ buf += b->stride;
+ }
+}
+
+/**
+ * Dirac Specification ->
+ * 13.4.2 Non-skipped subbands. subband_coeffs()
+ */
+static av_always_inline void decode_subband_internal(DiracContext *s, SubBand *b, int is_arith)
+{
+ int cb_x, cb_y, left, right, top, bottom;
+ DiracArith c;
+ GetBitContext gb;
+ int cb_width = s->codeblock[b->level + (b->orientation != subband_ll)].width;
+ int cb_height = s->codeblock[b->level + (b->orientation != subband_ll)].height;
+ int blockcnt_one = (cb_width + cb_height) == 2;
+
+ if (!b->length)
+ return;
+
+ init_get_bits(&gb, b->coeff_data, b->length*8);
+
+ if (is_arith)
+ ff_dirac_init_arith_decoder(&c, &gb, b->length);
+
+ top = 0;
+ for (cb_y = 0; cb_y < cb_height; cb_y++) {
+ bottom = (b->height * (cb_y+1)) / cb_height;
+ left = 0;
+ for (cb_x = 0; cb_x < cb_width; cb_x++) {
+ right = (b->width * (cb_x+1)) / cb_width;
+ codeblock(s, b, &gb, &c, left, right, top, bottom, blockcnt_one, is_arith);
+ left = right;
+ }
+ top = bottom;
+ }
+
+ if (b->orientation == subband_ll && s->num_refs == 0)
+ intra_dc_prediction(b);
+}
+
+static int decode_subband_arith(AVCodecContext *avctx, void *b)
+{
+ DiracContext *s = avctx->priv_data;
+ decode_subband_internal(s, b, 1);
+ return 0;
+}
+
+static int decode_subband_golomb(AVCodecContext *avctx, void *arg)
+{
+ DiracContext *s = avctx->priv_data;
+ SubBand **b = arg;
+ decode_subband_internal(s, *b, 0);
+ return 0;
+}
+
+/**
+ * Dirac Specification ->
+ * [DIRAC_STD] 13.4.1 core_transform_data()
+ */
+static void decode_component(DiracContext *s, int comp)
+{
+ AVCodecContext *avctx = s->avctx;
+ SubBand *bands[3*MAX_DWT_LEVELS+1];
+ enum dirac_subband orientation;
+ int level, num_bands = 0;
+
+ /* Unpack all subbands at all levels. */
+ for (level = 0; level < s->wavelet_depth; level++) {
+ for (orientation = !!level; orientation < 4; orientation++) {
+ SubBand *b = &s->plane[comp].band[level][orientation];
+ bands[num_bands++] = b;
+
+ align_get_bits(&s->gb);
+ /* [DIRAC_STD] 13.4.2 subband() */
+ b->length = svq3_get_ue_golomb(&s->gb);
+ if (b->length) {
+ b->quant = svq3_get_ue_golomb(&s->gb);
+ align_get_bits(&s->gb);
+ b->coeff_data = s->gb.buffer + get_bits_count(&s->gb)/8;
+ b->length = FFMIN(b->length, FFMAX(get_bits_left(&s->gb)/8, 0));
+ skip_bits_long(&s->gb, b->length*8);
+ }
+ }
+ /* arithmetic coding has inter-level dependencies, so we can only execute one level at a time */
+ if (s->is_arith)
+ avctx->execute(avctx, decode_subband_arith, &s->plane[comp].band[level][!!level],
+ NULL, 4-!!level, sizeof(SubBand));
+ }
+ /* golomb coding has no inter-level dependencies, so we can execute all subbands in parallel */
+ if (!s->is_arith)
+ avctx->execute(avctx, decode_subband_golomb, bands, NULL, num_bands, sizeof(SubBand*));
+}
+
+/* [DIRAC_STD] 13.5.5.2 Luma slice subband data. luma_slice_band(level,orient,sx,sy) --> if b2 == NULL */
+/* [DIRAC_STD] 13.5.5.3 Chroma slice subband data. chroma_slice_band(level,orient,sx,sy) --> if b2 != NULL */
+static void lowdelay_subband(DiracContext *s, GetBitContext *gb, int quant,
+ int slice_x, int slice_y, int bits_end,
+ SubBand *b1, SubBand *b2)
+{
+ int left = b1->width * slice_x / s->lowdelay.num_x;
+ int right = b1->width *(slice_x+1) / s->lowdelay.num_x;
+ int top = b1->height * slice_y / s->lowdelay.num_y;
+ int bottom = b1->height *(slice_y+1) / s->lowdelay.num_y;
+
+ int qfactor = qscale_tab[FFMIN(quant, MAX_QUANT)];
+ int qoffset = qoffset_intra_tab[FFMIN(quant, MAX_QUANT)];
+
+ IDWTELEM *buf1 = b1->ibuf + top * b1->stride;
+ IDWTELEM *buf2 = b2 ? b2->ibuf + top * b2->stride : NULL;
+ int x, y;
+ /* we have to constantly check for overread since the spec explictly
+ requires this, with the meaning that all remaining coeffs are set to 0 */
+ if (get_bits_count(gb) >= bits_end)
+ return;
+
+ for (y = top; y < bottom; y++) {
+ for (x = left; x < right; x++) {
+ buf1[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
+ if (get_bits_count(gb) >= bits_end)
+ return;
+ if (buf2) {
+ buf2[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
+ if (get_bits_count(gb) >= bits_end)
+ return;
+ }
+ }
+ buf1 += b1->stride;
+ if (buf2)
+ buf2 += b2->stride;
+ }
+}
+
+struct lowdelay_slice {
+ GetBitContext gb;
+ int slice_x;
+ int slice_y;
+ int bytes;
+};
+
+
+/**
+ * Dirac Specification ->
+ * 13.5.2 Slices. slice(sx,sy)
+ */
+static int decode_lowdelay_slice(AVCodecContext *avctx, void *arg)
+{
+ DiracContext *s = avctx->priv_data;
+ struct lowdelay_slice *slice = arg;
+ GetBitContext *gb = &slice->gb;
+ enum dirac_subband orientation;
+ int level, quant, chroma_bits, chroma_end;
+
+ int quant_base = get_bits(gb, 7); /*[DIRAC_STD] qindex */
+ int length_bits = av_log2(8 * slice->bytes)+1;
+ int luma_bits = get_bits_long(gb, length_bits);
+ int luma_end = get_bits_count(gb) + FFMIN(luma_bits, get_bits_left(gb));
+
+ /* [DIRAC_STD] 13.5.5.2 luma_slice_band */
+ for (level = 0; level < s->wavelet_depth; level++)
+ for (orientation = !!level; orientation < 4; orientation++) {
+ quant = FFMAX(quant_base - s->lowdelay.quant[level][orientation], 0);
+ lowdelay_subband(s, gb, quant, slice->slice_x, slice->slice_y, luma_end,
+ &s->plane[0].band[level][orientation], NULL);
+ }
+
+ /* consume any unused bits from luma */
+ skip_bits_long(gb, get_bits_count(gb) - luma_end);
+
+ chroma_bits = 8*slice->bytes - 7 - length_bits - luma_bits;
+ chroma_end = get_bits_count(gb) + FFMIN(chroma_bits, get_bits_left(gb));
+ /* [DIRAC_STD] 13.5.5.3 chroma_slice_band */
+ for (level = 0; level < s->wavelet_depth; level++)
+ for (orientation = !!level; orientation < 4; orientation++) {
+ quant = FFMAX(quant_base - s->lowdelay.quant[level][orientation], 0);
+ lowdelay_subband(s, gb, quant, slice->slice_x, slice->slice_y, chroma_end,
+ &s->plane[1].band[level][orientation],
+ &s->plane[2].band[level][orientation]);
+ }
+
+ return 0;
+}
+
+/**
+ * Dirac Specification ->
+ * 13.5.1 low_delay_transform_data()
+ */
+static void decode_lowdelay(DiracContext *s)
+{
+ AVCodecContext *avctx = s->avctx;
+ int slice_x, slice_y, bytes, bufsize;
+ const uint8_t *buf;
+ struct lowdelay_slice *slices;
+ int slice_num = 0;
+
+ slices = av_mallocz(s->lowdelay.num_x * s->lowdelay.num_y * sizeof(struct lowdelay_slice));
+
+ align_get_bits(&s->gb);
+ /*[DIRAC_STD] 13.5.2 Slices. slice(sx,sy) */
+ buf = s->gb.buffer + get_bits_count(&s->gb)/8;
+ bufsize = get_bits_left(&s->gb);
+
+ for (slice_y = 0; bufsize > 0 && slice_y < s->lowdelay.num_y; slice_y++)
+ for (slice_x = 0; bufsize > 0 && slice_x < s->lowdelay.num_x; slice_x++) {
+ bytes = (slice_num+1) * s->lowdelay.bytes.num / s->lowdelay.bytes.den
+ - slice_num * s->lowdelay.bytes.num / s->lowdelay.bytes.den;
+
+ slices[slice_num].bytes = bytes;
+ slices[slice_num].slice_x = slice_x;
+ slices[slice_num].slice_y = slice_y;
+ init_get_bits(&slices[slice_num].gb, buf, bufsize);
+ slice_num++;
+
+ buf += bytes;
+ bufsize -= bytes*8;
+ }
+
+ avctx->execute(avctx, decode_lowdelay_slice, slices, NULL, slice_num,
+ sizeof(struct lowdelay_slice)); /* [DIRAC_STD] 13.5.2 Slices */
+ intra_dc_prediction(&s->plane[0].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
+ intra_dc_prediction(&s->plane[1].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
+ intra_dc_prediction(&s->plane[2].band[0][0]); /* [DIRAC_STD] 13.3 intra_dc_prediction() */
+ av_free(slices);
+}
+
+static void init_planes(DiracContext *s)
+{
+ int i, w, h, level, orientation;
+
+ for (i = 0; i < 3; i++) {
+ Plane *p = &s->plane[i];
+
+ p->width = s->source.width >> (i ? s->chroma_x_shift : 0);
+ p->height = s->source.height >> (i ? s->chroma_y_shift : 0);
+ p->idwt_width = w = CALC_PADDING(p->width , s->wavelet_depth);
+ p->idwt_height = h = CALC_PADDING(p->height, s->wavelet_depth);
+ p->idwt_stride = FFALIGN(p->idwt_width, 8);
+
+ for (level = s->wavelet_depth-1; level >= 0; level--) {
+ w = w>>1;
+ h = h>>1;
+ for (orientation = !!level; orientation < 4; orientation++) {
+ SubBand *b = &p->band[level][orientation];
+
+ b->ibuf = p->idwt_buf;
+ b->level = level;
+ b->stride = p->idwt_stride << (s->wavelet_depth - level);
+ b->width = w;
+ b->height = h;
+ b->orientation = orientation;
+
+ if (orientation & 1)
+ b->ibuf += w;
+ if (orientation > 1)
+ b->ibuf += b->stride>>1;
+
+ if (level)
+ b->parent = &p->band[level-1][orientation];
+ }
+ }
+
+ if (i > 0) {
+ p->xblen = s->plane[0].xblen >> s->chroma_x_shift;
+ p->yblen = s->plane[0].yblen >> s->chroma_y_shift;
+ p->xbsep = s->plane[0].xbsep >> s->chroma_x_shift;
+ p->ybsep = s->plane[0].ybsep >> s->chroma_y_shift;
+ }
+
+ p->xoffset = (p->xblen - p->xbsep)/2;
+ p->yoffset = (p->yblen - p->ybsep)/2;
+ }
+}
+
+/**
+ * Unpack the motion compensation parameters
+ * Dirac Specification ->
+ * 11.2 Picture prediction data. picture_prediction()
+ */
+static int dirac_unpack_prediction_parameters(DiracContext *s)
+{
+ static const uint8_t default_blen[] = { 4, 12, 16, 24 };
+ static const uint8_t default_bsep[] = { 4, 8, 12, 16 };
+
+ GetBitContext *gb = &s->gb;
+ unsigned idx, ref;
+
+ align_get_bits(gb);
+ /* [DIRAC_STD] 11.2.2 Block parameters. block_parameters() */
+ /* Luma and Chroma are equal. 11.2.3 */
+ idx = svq3_get_ue_golomb(gb); /* [DIRAC_STD] index */
+
+ if (idx > 4) {
+ av_log(s->avctx, AV_LOG_ERROR, "Block prediction index too high\n");
+ return -1;
+ }
+
+ if (idx == 0) {
+ s->plane[0].xblen = svq3_get_ue_golomb(gb);
+ s->plane[0].yblen = svq3_get_ue_golomb(gb);
+ s->plane[0].xbsep = svq3_get_ue_golomb(gb);
+ s->plane[0].ybsep = svq3_get_ue_golomb(gb);
+ } else {
+ /*[DIRAC_STD] preset_block_params(index). Table 11.1 */
+ s->plane[0].xblen = default_blen[idx-1];
+ s->plane[0].yblen = default_blen[idx-1];
+ s->plane[0].xbsep = default_bsep[idx-1];
+ s->plane[0].ybsep = default_bsep[idx-1];
+ }
+ /*[DIRAC_STD] 11.2.4 motion_data_dimensions()
+ Calculated in function dirac_unpack_block_motion_data */
+
+ if (!s->plane[0].xbsep || !s->plane[0].ybsep || s->plane[0].xbsep < s->plane[0].xblen/2 || s->plane[0].ybsep < s->plane[0].yblen/2) {
+ av_log(s->avctx, AV_LOG_ERROR, "Block separation too small\n");
+ return -1;
+ }
+ if (s->plane[0].xbsep > s->plane[0].xblen || s->plane[0].ybsep > s->plane[0].yblen) {
+ av_log(s->avctx, AV_LOG_ERROR, "Block separation greater than size\n");
+ return -1;
+ }
+ if (FFMAX(s->plane[0].xblen, s->plane[0].yblen) > MAX_BLOCKSIZE) {
+ av_log(s->avctx, AV_LOG_ERROR, "Unsupported large block size\n");
+ return -1;
+ }
+
+ /*[DIRAC_STD] 11.2.5 Motion vector precision. motion_vector_precision()
+ Read motion vector precision */
+ s->mv_precision = svq3_get_ue_golomb(gb);
+ if (s->mv_precision > 3) {
+ av_log(s->avctx, AV_LOG_ERROR, "MV precision finer than eighth-pel\n");
+ return -1;
+ }
+
+ /*[DIRAC_STD] 11.2.6 Global motion. global_motion()
+ Read the global motion compensation parameters */
+ s->globalmc_flag = get_bits1(gb);
+ if (s->globalmc_flag) {
+ memset(s->globalmc, 0, sizeof(s->globalmc));
+ /* [DIRAC_STD] pan_tilt(gparams) */
+ for (ref = 0; ref < s->num_refs; ref++) {
+ if (get_bits1(gb)) {
+ s->globalmc[ref].pan_tilt[0] = dirac_get_se_golomb(gb);
+ s->globalmc[ref].pan_tilt[1] = dirac_get_se_golomb(gb);
+ }
+ /* [DIRAC_STD] zoom_rotate_shear(gparams)
+ zoom/rotation/shear parameters */
+ if (get_bits1(gb)) {
+ s->globalmc[ref].zrs_exp = svq3_get_ue_golomb(gb);
+ s->globalmc[ref].zrs[0][0] = dirac_get_se_golomb(gb);
+ s->globalmc[ref].zrs[0][1] = dirac_get_se_golomb(gb);
+ s->globalmc[ref].zrs[1][0] = dirac_get_se_golomb(gb);
+ s->globalmc[ref].zrs[1][1] = dirac_get_se_golomb(gb);
+ } else {
+ s->globalmc[ref].zrs[0][0] = 1;
+ s->globalmc[ref].zrs[1][1] = 1;
+ }
+ /* [DIRAC_STD] perspective(gparams) */
+ if (get_bits1(gb)) {
+ s->globalmc[ref].perspective_exp = svq3_get_ue_golomb(gb);
+ s->globalmc[ref].perspective[0] = dirac_get_se_golomb(gb);
+ s->globalmc[ref].perspective[1] = dirac_get_se_golomb(gb);
+ }
+ }
+ }
+
+ /*[DIRAC_STD] 11.2.7 Picture prediction mode. prediction_mode()
+ Picture prediction mode, not currently used. */
+ if (svq3_get_ue_golomb(gb)) {
+ av_log(s->avctx, AV_LOG_ERROR, "Unknown picture prediction mode\n");
+ return -1;
+ }
+
+ /* [DIRAC_STD] 11.2.8 Reference picture weight. reference_picture_weights()
+ just data read, weight calculation will be done later on. */
+ s->weight_log2denom = 1;
+ s->weight[0] = 1;
+ s->weight[1] = 1;
+
+ if (get_bits1(gb)) {
+ s->weight_log2denom = svq3_get_ue_golomb(gb);
+ s->weight[0] = dirac_get_se_golomb(gb);
+ if (s->num_refs == 2)
+ s->weight[1] = dirac_get_se_golomb(gb);
+ }
+ return 0;
+}
+
+/**
+ * Dirac Specification ->
+ * 11.3 Wavelet transform data. wavelet_transform()
+ */
+static int dirac_unpack_idwt_params(DiracContext *s)
+{
+ GetBitContext *gb = &s->gb;
+ int i, level;
+ unsigned tmp;
+
+#define CHECKEDREAD(dst, cond, errmsg) \
+ tmp = svq3_get_ue_golomb(gb); \
+ if (cond) { \
+ av_log(s->avctx, AV_LOG_ERROR, errmsg); \
+ return -1; \
+ }\
+ dst = tmp;
+
+ align_get_bits(gb);
+
+ s->zero_res = s->num_refs ? get_bits1(gb) : 0;
+ if (s->zero_res)
+ return 0;
+
+ /*[DIRAC_STD] 11.3.1 Transform parameters. transform_parameters() */
+ CHECKEDREAD(s->wavelet_idx, tmp > 6, "wavelet_idx is too big\n")
+
+ CHECKEDREAD(s->wavelet_depth, tmp > MAX_DWT_LEVELS || tmp < 1, "invalid number of DWT decompositions\n")
+
+ if (!s->low_delay) {
+ /* Codeblock parameters (core syntax only) */
+ if (get_bits1(gb)) {
+ for (i = 0; i <= s->wavelet_depth; i++) {
+ CHECKEDREAD(s->codeblock[i].width , tmp < 1, "codeblock width invalid\n")
+ CHECKEDREAD(s->codeblock[i].height, tmp < 1, "codeblock height invalid\n")
+ }
+
+ CHECKEDREAD(s->codeblock_mode, tmp > 1, "unknown codeblock mode\n")
+ } else
+ for (i = 0; i <= s->wavelet_depth; i++)
+ s->codeblock[i].width = s->codeblock[i].height = 1;
+ } else {
+ /* Slice parameters + quantization matrix*/
+ /*[DIRAC_STD] 11.3.4 Slice coding Parameters (low delay syntax only). slice_parameters() */
+ s->lowdelay.num_x = svq3_get_ue_golomb(gb);
+ s->lowdelay.num_y = svq3_get_ue_golomb(gb);
+ s->lowdelay.bytes.num = svq3_get_ue_golomb(gb);
+ s->lowdelay.bytes.den = svq3_get_ue_golomb(gb);
+
+ if (s->lowdelay.bytes.den <= 0) {
+ av_log(s->avctx,AV_LOG_ERROR,"Invalid lowdelay.bytes.den\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ /* [DIRAC_STD] 11.3.5 Quantisation matrices (low-delay syntax). quant_matrix() */
+ if (get_bits1(gb)) {
+ av_log(s->avctx,AV_LOG_DEBUG,"Low Delay: Has Custom Quantization Matrix!\n");
+ /* custom quantization matrix */
+ s->lowdelay.quant[0][0] = svq3_get_ue_golomb(gb);
+ for (level = 0; level < s->wavelet_depth; level++) {
+ s->lowdelay.quant[level][1] = svq3_get_ue_golomb(gb);
+ s->lowdelay.quant[level][2] = svq3_get_ue_golomb(gb);
+ s->lowdelay.quant[level][3] = svq3_get_ue_golomb(gb);
+ }
+ } else {
+ if (s->wavelet_depth > 4) {
+ av_log(s->avctx,AV_LOG_ERROR,"Mandatory custom low delay matrix missing for depth %d\n", s->wavelet_depth);
+ return AVERROR_INVALIDDATA;
+ }
+ /* default quantization matrix */
+ for (level = 0; level < s->wavelet_depth; level++)
+ for (i = 0; i < 4; i++) {
+ s->lowdelay.quant[level][i] = default_qmat[s->wavelet_idx][level][i];
+ /* haar with no shift differs for different depths */
+ if (s->wavelet_idx == 3)
+ s->lowdelay.quant[level][i] += 4*(s->wavelet_depth-1 - level);
+ }
+ }
+ }
+ return 0;
+}
+
+static inline int pred_sbsplit(uint8_t *sbsplit, int stride, int x, int y)
+{
+ static const uint8_t avgsplit[7] = { 0, 0, 1, 1, 1, 2, 2 };
+
+ if (!(x|y))
+ return 0;
+ else if (!y)
+ return sbsplit[-1];
+ else if (!x)
+ return sbsplit[-stride];
+
+ return avgsplit[sbsplit[-1] + sbsplit[-stride] + sbsplit[-stride-1]];
+}
+
+static inline int pred_block_mode(DiracBlock *block, int stride, int x, int y, int refmask)
+{
+ int pred;
+
+ if (!(x|y))
+ return 0;
+ else if (!y)
+ return block[-1].ref & refmask;
+ else if (!x)
+ return block[-stride].ref & refmask;
+
+ /* return the majority */
+ pred = (block[-1].ref & refmask) + (block[-stride].ref & refmask) + (block[-stride-1].ref & refmask);
+ return (pred >> 1) & refmask;
+}
+
+static inline void pred_block_dc(DiracBlock *block, int stride, int x, int y)
+{
+ int i, n = 0;
+
+ memset(block->u.dc, 0, sizeof(block->u.dc));
+
+ if (x && !(block[-1].ref & 3)) {
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] += block[-1].u.dc[i];
+ n++;
+ }
+
+ if (y && !(block[-stride].ref & 3)) {
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] += block[-stride].u.dc[i];
+ n++;
+ }
+
+ if (x && y && !(block[-1-stride].ref & 3)) {
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] += block[-1-stride].u.dc[i];
+ n++;
+ }
+
+ if (n == 2) {
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] = (block->u.dc[i]+1)>>1;
+ } else if (n == 3) {
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] = divide3(block->u.dc[i]);
+ }
+}
+
+static inline void pred_mv(DiracBlock *block, int stride, int x, int y, int ref)
+{
+ int16_t *pred[3];
+ int refmask = ref+1;
+ int mask = refmask | DIRAC_REF_MASK_GLOBAL; /* exclude gmc blocks */
+ int n = 0;
+
+ if (x && (block[-1].ref & mask) == refmask)
+ pred[n++] = block[-1].u.mv[ref];
+
+ if (y && (block[-stride].ref & mask) == refmask)
+ pred[n++] = block[-stride].u.mv[ref];
+
+ if (x && y && (block[-stride-1].ref & mask) == refmask)
+ pred[n++] = block[-stride-1].u.mv[ref];
+
+ switch (n) {
+ case 0:
+ block->u.mv[ref][0] = 0;
+ block->u.mv[ref][1] = 0;
+ break;
+ case 1:
+ block->u.mv[ref][0] = pred[0][0];
+ block->u.mv[ref][1] = pred[0][1];
+ break;
+ case 2:
+ block->u.mv[ref][0] = (pred[0][0] + pred[1][0] + 1) >> 1;
+ block->u.mv[ref][1] = (pred[0][1] + pred[1][1] + 1) >> 1;
+ break;
+ case 3:
+ block->u.mv[ref][0] = mid_pred(pred[0][0], pred[1][0], pred[2][0]);
+ block->u.mv[ref][1] = mid_pred(pred[0][1], pred[1][1], pred[2][1]);
+ break;
+ }
+}
+
+static void global_mv(DiracContext *s, DiracBlock *block, int x, int y, int ref)
+{
+ int ez = s->globalmc[ref].zrs_exp;
+ int ep = s->globalmc[ref].perspective_exp;
+ int (*A)[2] = s->globalmc[ref].zrs;
+ int *b = s->globalmc[ref].pan_tilt;
+ int *c = s->globalmc[ref].perspective;
+
+ int m = (1<<ep) - (c[0]*x + c[1]*y);
+ int mx = m * ((A[0][0] * x + A[0][1]*y) + (1<<ez) * b[0]);
+ int my = m * ((A[1][0] * x + A[1][1]*y) + (1<<ez) * b[1]);
+
+ block->u.mv[ref][0] = (mx + (1<<(ez+ep))) >> (ez+ep);
+ block->u.mv[ref][1] = (my + (1<<(ez+ep))) >> (ez+ep);
+}
+
+static void decode_block_params(DiracContext *s, DiracArith arith[8], DiracBlock *block,
+ int stride, int x, int y)
+{
+ int i;
+
+ block->ref = pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_REF1);
+ block->ref ^= dirac_get_arith_bit(arith, CTX_PMODE_REF1);
+
+ if (s->num_refs == 2) {
+ block->ref |= pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_REF2);
+ block->ref ^= dirac_get_arith_bit(arith, CTX_PMODE_REF2) << 1;
+ }
+
+ if (!block->ref) {
+ pred_block_dc(block, stride, x, y);
+ for (i = 0; i < 3; i++)
+ block->u.dc[i] += dirac_get_arith_int(arith+1+i, CTX_DC_F1, CTX_DC_DATA);
+ return;
+ }
+
+ if (s->globalmc_flag) {
+ block->ref |= pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_GLOBAL);
+ block->ref ^= dirac_get_arith_bit(arith, CTX_GLOBAL_BLOCK) << 2;
+ }
+
+ for (i = 0; i < s->num_refs; i++)
+ if (block->ref & (i+1)) {
+ if (block->ref & DIRAC_REF_MASK_GLOBAL) {
+ global_mv(s, block, x, y, i);
+ } else {
+ pred_mv(block, stride, x, y, i);
+ block->u.mv[i][0] += dirac_get_arith_int(arith + 4 + 2 * i, CTX_MV_F1, CTX_MV_DATA);
+ block->u.mv[i][1] += dirac_get_arith_int(arith + 5 + 2 * i, CTX_MV_F1, CTX_MV_DATA);
+ }
+ }
+}
+
+/**
+ * Copies the current block to the other blocks covered by the current superblock split mode
+ */
+static void propagate_block_data(DiracBlock *block, int stride, int size)
+{
+ int x, y;
+ DiracBlock *dst = block;
+
+ for (x = 1; x < size; x++)
+ dst[x] = *block;
+
+ for (y = 1; y < size; y++) {
+ dst += stride;
+ for (x = 0; x < size; x++)
+ dst[x] = *block;
+ }
+}
+
+/**
+ * Dirac Specification ->
+ * 12. Block motion data syntax
+ */
+static int dirac_unpack_block_motion_data(DiracContext *s)
+{
+ GetBitContext *gb = &s->gb;
+ uint8_t *sbsplit = s->sbsplit;
+ int i, x, y, q, p;
+ DiracArith arith[8];
+
+ align_get_bits(gb);
+
+ /* [DIRAC_STD] 11.2.4 and 12.2.1 Number of blocks and superblocks */
+ s->sbwidth = DIVRNDUP(s->source.width, 4*s->plane[0].xbsep);
+ s->sbheight = DIVRNDUP(s->source.height, 4*s->plane[0].ybsep);
+ s->blwidth = 4 * s->sbwidth;
+ s->blheight = 4 * s->sbheight;
+
+ /* [DIRAC_STD] 12.3.1 Superblock splitting modes. superblock_split_modes()
+ decode superblock split modes */
+ ff_dirac_init_arith_decoder(arith, gb, svq3_get_ue_golomb(gb)); /* svq3_get_ue_golomb(gb) is the length */
+ for (y = 0; y < s->sbheight; y++) {
+ for (x = 0; x < s->sbwidth; x++) {
+ unsigned int split = dirac_get_arith_uint(arith, CTX_SB_F1, CTX_SB_DATA);
+ if (split > 2)
+ return -1;
+ sbsplit[x] = (split + pred_sbsplit(sbsplit+x, s->sbwidth, x, y)) % 3;
+ }
+ sbsplit += s->sbwidth;
+ }
+
+ /* setup arith decoding */
+ ff_dirac_init_arith_decoder(arith, gb, svq3_get_ue_golomb(gb));
+ for (i = 0; i < s->num_refs; i++) {
+ ff_dirac_init_arith_decoder(arith + 4 + 2 * i, gb, svq3_get_ue_golomb(gb));
+ ff_dirac_init_arith_decoder(arith + 5 + 2 * i, gb, svq3_get_ue_golomb(gb));
+ }
+ for (i = 0; i < 3; i++)
+ ff_dirac_init_arith_decoder(arith+1+i, gb, svq3_get_ue_golomb(gb));
+
+ for (y = 0; y < s->sbheight; y++)
+ for (x = 0; x < s->sbwidth; x++) {
+ int blkcnt = 1 << s->sbsplit[y * s->sbwidth + x];
+ int step = 4 >> s->sbsplit[y * s->sbwidth + x];
+
+ for (q = 0; q < blkcnt; q++)
+ for (p = 0; p < blkcnt; p++) {
+ int bx = 4 * x + p*step;
+ int by = 4 * y + q*step;
+ DiracBlock *block = &s->blmotion[by*s->blwidth + bx];
+ decode_block_params(s, arith, block, s->blwidth, bx, by);
+ propagate_block_data(block, s->blwidth, step);
+ }
+ }
+
+ return 0;
+}
+
+static int weight(int i, int blen, int offset)
+{
+#define ROLLOFF(i) offset == 1 ? ((i) ? 5 : 3) : \
+ (1 + (6*(i) + offset - 1) / (2*offset - 1))
+
+ if (i < 2*offset)
+ return ROLLOFF(i);
+ else if (i > blen-1 - 2*offset)
+ return ROLLOFF(blen-1 - i);
+ return 8;
+}
+
+static void init_obmc_weight_row(Plane *p, uint8_t *obmc_weight, int stride,
+ int left, int right, int wy)
+{
+ int x;
+ for (x = 0; left && x < p->xblen >> 1; x++)
+ obmc_weight[x] = wy*8;
+ for (; x < p->xblen >> right; x++)
+ obmc_weight[x] = wy*weight(x, p->xblen, p->xoffset);
+ for (; x < p->xblen; x++)
+ obmc_weight[x] = wy*8;
+ for (; x < stride; x++)
+ obmc_weight[x] = 0;
+}
+
+static void init_obmc_weight(Plane *p, uint8_t *obmc_weight, int stride,
+ int left, int right, int top, int bottom)
+{
+ int y;
+ for (y = 0; top && y < p->yblen >> 1; y++) {
+ init_obmc_weight_row(p, obmc_weight, stride, left, right, 8);
+ obmc_weight += stride;
+ }
+ for (; y < p->yblen >> bottom; y++) {
+ int wy = weight(y, p->yblen, p->yoffset);
+ init_obmc_weight_row(p, obmc_weight, stride, left, right, wy);
+ obmc_weight += stride;
+ }
+ for (; y < p->yblen; y++) {
+ init_obmc_weight_row(p, obmc_weight, stride, left, right, 8);
+ obmc_weight += stride;
+ }
+}
+
+static void init_obmc_weights(DiracContext *s, Plane *p, int by)
+{
+ int top = !by;
+ int bottom = by == s->blheight-1;
+
+ /* don't bother re-initing for rows 2 to blheight-2, the weights don't change */
+ if (top || bottom || by == 1) {
+ init_obmc_weight(p, s->obmc_weight[0], MAX_BLOCKSIZE, 1, 0, top, bottom);
+ init_obmc_weight(p, s->obmc_weight[1], MAX_BLOCKSIZE, 0, 0, top, bottom);
+ init_obmc_weight(p, s->obmc_weight[2], MAX_BLOCKSIZE, 0, 1, top, bottom);
+ }
+}
+
+static const uint8_t epel_weights[4][4][4] = {
+ {{ 16, 0, 0, 0 },
+ { 12, 4, 0, 0 },
+ { 8, 8, 0, 0 },
+ { 4, 12, 0, 0 }},
+ {{ 12, 0, 4, 0 },
+ { 9, 3, 3, 1 },
+ { 6, 6, 2, 2 },
+ { 3, 9, 1, 3 }},
+ {{ 8, 0, 8, 0 },
+ { 6, 2, 6, 2 },
+ { 4, 4, 4, 4 },
+ { 2, 6, 2, 6 }},
+ {{ 4, 0, 12, 0 },
+ { 3, 1, 9, 3 },
+ { 2, 2, 6, 6 },
+ { 1, 3, 3, 9 }}
+};
+
+/**
+ * For block x,y, determine which of the hpel planes to do bilinear
+ * interpolation from and set src[] to the location in each hpel plane
+ * to MC from.
+ *
+ * @return the index of the put_dirac_pixels_tab function to use
+ * 0 for 1 plane (fpel,hpel), 1 for 2 planes (qpel), 2 for 4 planes (qpel), and 3 for epel
+ */
+static int mc_subpel(DiracContext *s, DiracBlock *block, const uint8_t *src[5],
+ int x, int y, int ref, int plane)
+{
+ Plane *p = &s->plane[plane];
+ uint8_t **ref_hpel = s->ref_pics[ref]->hpel[plane];
+ int motion_x = block->u.mv[ref][0];
+ int motion_y = block->u.mv[ref][1];
+ int mx, my, i, epel, nplanes = 0;
+
+ if (plane) {
+ motion_x >>= s->chroma_x_shift;
+ motion_y >>= s->chroma_y_shift;
+ }
+
+ mx = motion_x & ~(-1 << s->mv_precision);
+ my = motion_y & ~(-1 << s->mv_precision);
+ motion_x >>= s->mv_precision;
+ motion_y >>= s->mv_precision;
+ /* normalize subpel coordinates to epel */
+ /* TODO: template this function? */
+ mx <<= 3 - s->mv_precision;
+ my <<= 3 - s->mv_precision;
+
+ x += motion_x;
+ y += motion_y;
+ epel = (mx|my)&1;
+
+ /* hpel position */
+ if (!((mx|my)&3)) {
+ nplanes = 1;
+ src[0] = ref_hpel[(my>>1)+(mx>>2)] + y*p->stride + x;
+ } else {
+ /* qpel or epel */
+ nplanes = 4;
+ for (i = 0; i < 4; i++)
+ src[i] = ref_hpel[i] + y*p->stride + x;
+
+ /* if we're interpolating in the right/bottom halves, adjust the planes as needed
+ we increment x/y because the edge changes for half of the pixels */
+ if (mx > 4) {
+ src[0] += 1;
+ src[2] += 1;
+ x++;
+ }
+ if (my > 4) {
+ src[0] += p->stride;
+ src[1] += p->stride;
+ y++;
+ }
+
+ /* hpel planes are:
+ [0]: F [1]: H
+ [2]: V [3]: C */
+ if (!epel) {
+ /* check if we really only need 2 planes since either mx or my is
+ a hpel position. (epel weights of 0 handle this there) */
+ if (!(mx&3)) {
+ /* mx == 0: average [0] and [2]
+ mx == 4: average [1] and [3] */
+ src[!mx] = src[2 + !!mx];
+ nplanes = 2;
+ } else if (!(my&3)) {
+ src[0] = src[(my>>1) ];
+ src[1] = src[(my>>1)+1];
+ nplanes = 2;
+ }
+ } else {
+ /* adjust the ordering if needed so the weights work */
+ if (mx > 4) {
+ FFSWAP(const uint8_t *, src[0], src[1]);
+ FFSWAP(const uint8_t *, src[2], src[3]);
+ }
+ if (my > 4) {
+ FFSWAP(const uint8_t *, src[0], src[2]);
+ FFSWAP(const uint8_t *, src[1], src[3]);
+ }
+ src[4] = epel_weights[my&3][mx&3];
+ }
+ }
+
+ /* fixme: v/h _edge_pos */
+ if ((unsigned)x > FFMAX(p->width +EDGE_WIDTH/2 - p->xblen, 0) ||
+ (unsigned)y > FFMAX(p->height+EDGE_WIDTH/2 - p->yblen, 0)) {
+ for (i = 0; i < nplanes; i++) {
+ ff_emulated_edge_mc(s->edge_emu_buffer[i], src[i], p->stride,
+ p->xblen, p->yblen, x, y,
+ p->width+EDGE_WIDTH/2, p->height+EDGE_WIDTH/2);
+ src[i] = s->edge_emu_buffer[i];
+ }
+ }
+ return (nplanes>>1) + epel;
+}
+
+static void add_dc(uint16_t *dst, int dc, int stride,
+ uint8_t *obmc_weight, int xblen, int yblen)
+{
+ int x, y;
+ dc += 128;
+
+ for (y = 0; y < yblen; y++) {
+ for (x = 0; x < xblen; x += 2) {
+ dst[x ] += dc * obmc_weight[x ];
+ dst[x+1] += dc * obmc_weight[x+1];
+ }
+ dst += stride;
+ obmc_weight += MAX_BLOCKSIZE;
+ }
+}
+
+static void block_mc(DiracContext *s, DiracBlock *block,
+ uint16_t *mctmp, uint8_t *obmc_weight,
+ int plane, int dstx, int dsty)
+{
+ Plane *p = &s->plane[plane];
+ const uint8_t *src[5];
+ int idx;
+
+ switch (block->ref&3) {
+ case 0: /* DC */
+ add_dc(mctmp, block->u.dc[plane], p->stride, obmc_weight, p->xblen, p->yblen);
+ return;
+ case 1:
+ case 2:
+ idx = mc_subpel(s, block, src, dstx, dsty, (block->ref&3)-1, plane);
+ s->put_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen);
+ if (s->weight_func)
+ s->weight_func(s->mcscratch, p->stride, s->weight_log2denom,
+ s->weight[0] + s->weight[1], p->yblen);
+ break;
+ case 3:
+ idx = mc_subpel(s, block, src, dstx, dsty, 0, plane);
+ s->put_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen);
+ idx = mc_subpel(s, block, src, dstx, dsty, 1, plane);
+ if (s->biweight_func) {
+ /* fixme: +32 is a quick hack */
+ s->put_pixels_tab[idx](s->mcscratch + 32, src, p->stride, p->yblen);
+ s->biweight_func(s->mcscratch, s->mcscratch+32, p->stride, s->weight_log2denom,
+ s->weight[0], s->weight[1], p->yblen);
+ } else
+ s->avg_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen);
+ break;
+ }
+ s->add_obmc(mctmp, s->mcscratch, p->stride, obmc_weight, p->yblen);
+}
+
+static void mc_row(DiracContext *s, DiracBlock *block, uint16_t *mctmp, int plane, int dsty)
+{
+ Plane *p = &s->plane[plane];
+ int x, dstx = p->xbsep - p->xoffset;
+
+ block_mc(s, block, mctmp, s->obmc_weight[0], plane, -p->xoffset, dsty);
+ mctmp += p->xbsep;
+
+ for (x = 1; x < s->blwidth-1; x++) {
+ block_mc(s, block+x, mctmp, s->obmc_weight[1], plane, dstx, dsty);
+ dstx += p->xbsep;
+ mctmp += p->xbsep;
+ }
+ block_mc(s, block+x, mctmp, s->obmc_weight[2], plane, dstx, dsty);
+}
+
+static void select_dsp_funcs(DiracContext *s, int width, int height, int xblen, int yblen)
+{
+ int idx = 0;
+ if (xblen > 8)
+ idx = 1;
+ if (xblen > 16)
+ idx = 2;
+
+ memcpy(s->put_pixels_tab, s->diracdsp.put_dirac_pixels_tab[idx], sizeof(s->put_pixels_tab));
+ memcpy(s->avg_pixels_tab, s->diracdsp.avg_dirac_pixels_tab[idx], sizeof(s->avg_pixels_tab));
+ s->add_obmc = s->diracdsp.add_dirac_obmc[idx];
+ if (s->weight_log2denom > 1 || s->weight[0] != 1 || s->weight[1] != 1) {
+ s->weight_func = s->diracdsp.weight_dirac_pixels_tab[idx];
+ s->biweight_func = s->diracdsp.biweight_dirac_pixels_tab[idx];
+ } else {
+ s->weight_func = NULL;
+ s->biweight_func = NULL;
+ }
+}
+
+static void interpolate_refplane(DiracContext *s, DiracFrame *ref, int plane, int width, int height)
+{
+ /* chroma allocates an edge of 8 when subsampled
+ which for 4:2:2 means an h edge of 16 and v edge of 8
+ just use 8 for everything for the moment */
+ int i, edge = EDGE_WIDTH/2;
+
+ ref->hpel[plane][0] = ref->avframe.data[plane];
+ s->dsp.draw_edges(ref->hpel[plane][0], ref->avframe.linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM); /* EDGE_TOP | EDGE_BOTTOM values just copied to make it build, this needs to be ensured */
+
+ /* no need for hpel if we only have fpel vectors */
+ if (!s->mv_precision)
+ return;
+
+ for (i = 1; i < 4; i++) {
+ if (!ref->hpel_base[plane][i])
+ ref->hpel_base[plane][i] = av_malloc((height+2*edge) * ref->avframe.linesize[plane] + 32);
+ /* we need to be 16-byte aligned even for chroma */
+ ref->hpel[plane][i] = ref->hpel_base[plane][i] + edge*ref->avframe.linesize[plane] + 16;
+ }
+
+ if (!ref->interpolated[plane]) {
+ s->diracdsp.dirac_hpel_filter(ref->hpel[plane][1], ref->hpel[plane][2],
+ ref->hpel[plane][3], ref->hpel[plane][0],
+ ref->avframe.linesize[plane], width, height);
+ s->dsp.draw_edges(ref->hpel[plane][1], ref->avframe.linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
+ s->dsp.draw_edges(ref->hpel[plane][2], ref->avframe.linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
+ s->dsp.draw_edges(ref->hpel[plane][3], ref->avframe.linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
+ }
+ ref->interpolated[plane] = 1;
+}
+
+/**
+ * Dirac Specification ->
+ * 13.0 Transform data syntax. transform_data()
+ */
+static int dirac_decode_frame_internal(DiracContext *s)
+{
+ DWTContext d;
+ int y, i, comp, dsty;
+
+ if (s->low_delay) {
+ /* [DIRAC_STD] 13.5.1 low_delay_transform_data() */
+ for (comp = 0; comp < 3; comp++) {
+ Plane *p = &s->plane[comp];
+ memset(p->idwt_buf, 0, p->idwt_stride * p->idwt_height * sizeof(IDWTELEM));
+ }
+ if (!s->zero_res)
+ decode_lowdelay(s);
+ }
+
+ for (comp = 0; comp < 3; comp++) {
+ Plane *p = &s->plane[comp];
+ uint8_t *frame = s->current_picture->avframe.data[comp];
+
+ /* FIXME: small resolutions */
+ for (i = 0; i < 4; i++)
+ s->edge_emu_buffer[i] = s->edge_emu_buffer_base + i*FFALIGN(p->width, 16);
+
+ if (!s->zero_res && !s->low_delay)
+ {
+ memset(p->idwt_buf, 0, p->idwt_stride * p->idwt_height * sizeof(IDWTELEM));
+ decode_component(s, comp); /* [DIRAC_STD] 13.4.1 core_transform_data() */
+ }
+ if (ff_spatial_idwt_init2(&d, p->idwt_buf, p->idwt_width, p->idwt_height, p->idwt_stride,
+ s->wavelet_idx+2, s->wavelet_depth, p->idwt_tmp))
+ return -1;
+
+ if (!s->num_refs) { /* intra */
+ for (y = 0; y < p->height; y += 16) {
+ ff_spatial_idwt_slice2(&d, y+16); /* decode */
+ s->diracdsp.put_signed_rect_clamped(frame + y*p->stride, p->stride,
+ p->idwt_buf + y*p->idwt_stride, p->idwt_stride, p->width, 16);
+ }
+ } else { /* inter */
+ int rowheight = p->ybsep*p->stride;
+
+ select_dsp_funcs(s, p->width, p->height, p->xblen, p->yblen);
+
+ for (i = 0; i < s->num_refs; i++)
+ interpolate_refplane(s, s->ref_pics[i], comp, p->width, p->height);
+
+ memset(s->mctmp, 0, 4*p->yoffset*p->stride);
+
+ dsty = -p->yoffset;
+ for (y = 0; y < s->blheight; y++) {
+ int h = 0,
+ start = FFMAX(dsty, 0);
+ uint16_t *mctmp = s->mctmp + y*rowheight;
+ DiracBlock *blocks = s->blmotion + y*s->blwidth;
+
+ init_obmc_weights(s, p, y);
+
+ if (y == s->blheight-1 || start+p->ybsep > p->height)
+ h = p->height - start;
+ else
+ h = p->ybsep - (start - dsty);
+ if (h < 0)
+ break;
+
+ memset(mctmp+2*p->yoffset*p->stride, 0, 2*rowheight);
+ mc_row(s, blocks, mctmp, comp, dsty);
+
+ mctmp += (start - dsty)*p->stride + p->xoffset;
+ ff_spatial_idwt_slice2(&d, start + h); /* decode */
+ s->diracdsp.add_rect_clamped(frame + start*p->stride, mctmp, p->stride,
+ p->idwt_buf + start*p->idwt_stride, p->idwt_stride, p->width, h);
+
+ dsty += p->ybsep;
+ }
+ }
+ }
+
+
+ return 0;
+}
+
+/**
+ * Dirac Specification ->
+ * 11.1.1 Picture Header. picture_header()
+ */
+static int dirac_decode_picture_header(DiracContext *s)
+{
+ int retire, picnum;
+ int i, j, refnum, refdist;
+ GetBitContext *gb = &s->gb;
+
+ /* [DIRAC_STD] 11.1.1 Picture Header. picture_header() PICTURE_NUM */
+ picnum = s->current_picture->avframe.display_picture_number = get_bits_long(gb, 32);
+
+
+ av_log(s->avctx,AV_LOG_DEBUG,"PICTURE_NUM: %d\n",picnum);
+
+ /* if this is the first keyframe after a sequence header, start our
+ reordering from here */
+ if (s->frame_number < 0)
+ s->frame_number = picnum;
+
+ s->ref_pics[0] = s->ref_pics[1] = NULL;
+ for (i = 0; i < s->num_refs; i++) {
+ refnum = picnum + dirac_get_se_golomb(gb);
+ refdist = INT_MAX;
+
+ /* find the closest reference to the one we want */
+ /* Jordi: this is needed if the referenced picture hasn't yet arrived */
+ for (j = 0; j < MAX_REFERENCE_FRAMES && refdist; j++)
+ if (s->ref_frames[j]
+ && FFABS(s->ref_frames[j]->avframe.display_picture_number - refnum) < refdist) {
+ s->ref_pics[i] = s->ref_frames[j];
+ refdist = FFABS(s->ref_frames[j]->avframe.display_picture_number - refnum);
+ }
+
+ if (!s->ref_pics[i] || refdist)
+ av_log(s->avctx, AV_LOG_DEBUG, "Reference not found\n");
+
+ /* if there were no references at all, allocate one */
+ if (!s->ref_pics[i])
+ for (j = 0; j < MAX_FRAMES; j++)
+ if (!s->all_frames[j].avframe.data[0]) {
+ s->ref_pics[i] = &s->all_frames[j];
- if (avctx->get_buffer(avctx, &pic->avframe) < 0) {
++ ff_get_buffer(s->avctx, &s->ref_pics[i]->avframe);
+ break;
+ }
+ }
+
+ /* retire the reference frames that are not used anymore */
+ if (s->current_picture->avframe.reference) {
+ retire = picnum + dirac_get_se_golomb(gb);
+ if (retire != picnum) {
+ DiracFrame *retire_pic = remove_frame(s->ref_frames, retire);
+
+ if (retire_pic)
+ retire_pic->avframe.reference &= DELAYED_PIC_REF;
+ else
+ av_log(s->avctx, AV_LOG_DEBUG, "Frame to retire not found\n");
+ }
+
+ /* if reference array is full, remove the oldest as per the spec */
+ while (add_frame(s->ref_frames, MAX_REFERENCE_FRAMES, s->current_picture)) {
+ av_log(s->avctx, AV_LOG_ERROR, "Reference frame overflow\n");
+ remove_frame(s->ref_frames, s->ref_frames[0]->avframe.display_picture_number)->avframe.reference &= DELAYED_PIC_REF;
+ }
+ }
+
+ if (s->num_refs) {
+ if (dirac_unpack_prediction_parameters(s)) /* [DIRAC_STD] 11.2 Picture Prediction Data. picture_prediction() */
+ return -1;
+ if (dirac_unpack_block_motion_data(s)) /* [DIRAC_STD] 12. Block motion data syntax */
+ return -1;
+ }
+ if (dirac_unpack_idwt_params(s)) /* [DIRAC_STD] 11.3 Wavelet transform data */
+ return -1;
+
+ init_planes(s);
+ return 0;
+}
+
+static int get_delayed_pic(DiracContext *s, AVFrame *picture, int *data_size)
+{
+ DiracFrame *out = s->delay_frames[0];
+ int i, out_idx = 0;
+
+ /* find frame with lowest picture number */
+ for (i = 1; s->delay_frames[i]; i++)
+ if (s->delay_frames[i]->avframe.display_picture_number < out->avframe.display_picture_number) {
+ out = s->delay_frames[i];
+ out_idx = i;
+ }
+
+ for (i = out_idx; s->delay_frames[i]; i++)
+ s->delay_frames[i] = s->delay_frames[i+1];
+
+ if (out) {
+ out->avframe.reference ^= DELAYED_PIC_REF;
+ *data_size = sizeof(AVFrame);
+ *(AVFrame *)picture = out->avframe;
+ }
+
+ return 0;
+}
+
+/**
+ * Dirac Specification ->
+ * 9.6 Parse Info Header Syntax. parse_info()
+ * 4 byte start code + byte parse code + 4 byte size + 4 byte previous size
+ */
+#define DATA_UNIT_HEADER_SIZE 13
+
+/* [DIRAC_STD] dirac_decode_data_unit makes reference to the while defined in 9.3
+ inside the function parse_sequence() */
+static int dirac_decode_data_unit(AVCodecContext *avctx, const uint8_t *buf, int size)
+{
+ DiracContext *s = avctx->priv_data;
+ DiracFrame *pic = NULL;
+ int i, parse_code = buf[4];
+ unsigned tmp;
+
+ if (size < DATA_UNIT_HEADER_SIZE)
+ return -1;
+
+ init_get_bits(&s->gb, &buf[13], 8*(size - DATA_UNIT_HEADER_SIZE));
+
+ if (parse_code == pc_seq_header) {
+ if (s->seen_sequence_header)
+ return 0;
+
+ /* [DIRAC_STD] 10. Sequence header */
+ if (avpriv_dirac_parse_sequence_header(avctx, &s->gb, &s->source))
+ return -1;
+
+ avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift);
+
+ if (alloc_sequence_buffers(s))
+ return -1;
+
+ s->seen_sequence_header = 1;
+ } else if (parse_code == pc_eos) { /* [DIRAC_STD] End of Sequence */
+ free_sequence_buffers(s);
+ s->seen_sequence_header = 0;
+ } else if (parse_code == pc_aux_data) {
+ if (buf[13] == 1) { /* encoder implementation/version */
+ int ver[3];
+ /* versions older than 1.0.8 don't store quant delta for
+ subbands with only one codeblock */
+ if (sscanf(buf+14, "Schroedinger %d.%d.%d", ver, ver+1, ver+2) == 3)
+ if (ver[0] == 1 && ver[1] == 0 && ver[2] <= 7)
+ s->old_delta_quant = 1;
+ }
+ } else if (parse_code & 0x8) { /* picture data unit */
+ if (!s->seen_sequence_header) {
+ av_log(avctx, AV_LOG_DEBUG, "Dropping frame without sequence header\n");
+ return -1;
+ }
+
+ /* find an unused frame */
+ for (i = 0; i < MAX_FRAMES; i++)
+ if (s->all_frames[i].avframe.data[0] == NULL)
+ pic = &s->all_frames[i];
+ if (!pic) {
+ av_log(avctx, AV_LOG_ERROR, "framelist full\n");
+ return -1;
+ }
+
+ avcodec_get_frame_defaults(&pic->avframe);
+
+ /* [DIRAC_STD] Defined in 9.6.1 ... */
+ tmp = parse_code & 0x03; /* [DIRAC_STD] num_refs() */
+ if (tmp > 2) {
+ av_log(avctx, AV_LOG_ERROR, "num_refs of 3\n");
+ return -1;
+ }
+ s->num_refs = tmp;
+ s->is_arith = (parse_code & 0x48) == 0x08; /* [DIRAC_STD] using_ac() */
+ s->low_delay = (parse_code & 0x88) == 0x88; /* [DIRAC_STD] is_low_delay() */
+ pic->avframe.reference = (parse_code & 0x0C) == 0x0C; /* [DIRAC_STD] is_reference() */
+ pic->avframe.key_frame = s->num_refs == 0; /* [DIRAC_STD] is_intra() */
+ pic->avframe.pict_type = s->num_refs + 1; /* Definition of AVPictureType in avutil.h */
+
++ if (ff_get_buffer(avctx, &pic->avframe) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return -1;
+ }
+ s->current_picture = pic;
+ s->plane[0].stride = pic->avframe.linesize[0];
+ s->plane[1].stride = pic->avframe.linesize[1];
+ s->plane[2].stride = pic->avframe.linesize[2];
+
+ /* [DIRAC_STD] 11.1 Picture parse. picture_parse() */
+ if (dirac_decode_picture_header(s))
+ return -1;
+
+ /* [DIRAC_STD] 13.0 Transform data syntax. transform_data() */
+ if (dirac_decode_frame_internal(s))
+ return -1;
+ }
+ return 0;
+}
+
+static int dirac_decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *pkt)
+{
+ DiracContext *s = avctx->priv_data;
+ DiracFrame *picture = data;
+ uint8_t *buf = pkt->data;
+ int buf_size = pkt->size;
+ int i, data_unit_size, buf_idx = 0;
+
+ /* release unused frames */
+ for (i = 0; i < MAX_FRAMES; i++)
+ if (s->all_frames[i].avframe.data[0] && !s->all_frames[i].avframe.reference) {
+ avctx->release_buffer(avctx, &s->all_frames[i].avframe);
+ memset(s->all_frames[i].interpolated, 0, sizeof(s->all_frames[i].interpolated));
+ }
+
+ s->current_picture = NULL;
+ *data_size = 0;
+
+ /* end of stream, so flush delayed pics */
+ if (buf_size == 0)
+ return get_delayed_pic(s, (AVFrame *)data, data_size);
+
+ for (;;) {
+ /*[DIRAC_STD] Here starts the code from parse_info() defined in 9.6
+ [DIRAC_STD] PARSE_INFO_PREFIX = "BBCD" as defined in ISO/IEC 646
+ BBCD start code search */
+ for (; buf_idx + DATA_UNIT_HEADER_SIZE < buf_size; buf_idx++) {
+ if (buf[buf_idx ] == 'B' && buf[buf_idx+1] == 'B' &&
+ buf[buf_idx+2] == 'C' && buf[buf_idx+3] == 'D')
+ break;
+ }
+ /* BBCD found or end of data */
+ if (buf_idx + DATA_UNIT_HEADER_SIZE >= buf_size)
+ break;
+
+ data_unit_size = AV_RB32(buf+buf_idx+5);
+ if (buf_idx + data_unit_size > buf_size || !data_unit_size) {
+ if(buf_idx + data_unit_size > buf_size)
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Data unit with size %d is larger than input buffer, discarding\n",
+ data_unit_size);
+ buf_idx += 4;
+ continue;
+ }
+ /* [DIRAC_STD] dirac_decode_data_unit makes reference to the while defined in 9.3 inside the function parse_sequence() */
+ if (dirac_decode_data_unit(avctx, buf+buf_idx, data_unit_size))
+ {
+ av_log(s->avctx, AV_LOG_ERROR,"Error in dirac_decode_data_unit\n");
+ return -1;
+ }
+ buf_idx += data_unit_size;
+ }
+
+ if (!s->current_picture)
+ return buf_size;
+
+ if (s->current_picture->avframe.display_picture_number > s->frame_number) {
+ DiracFrame *delayed_frame = remove_frame(s->delay_frames, s->frame_number);
+
+ s->current_picture->avframe.reference |= DELAYED_PIC_REF;
+
+ if (add_frame(s->delay_frames, MAX_DELAY, s->current_picture)) {
+ int min_num = s->delay_frames[0]->avframe.display_picture_number;
+ /* Too many delayed frames, so we display the frame with the lowest pts */
+ av_log(avctx, AV_LOG_ERROR, "Delay frame overflow\n");
+ delayed_frame = s->delay_frames[0];
+
+ for (i = 1; s->delay_frames[i]; i++)
+ if (s->delay_frames[i]->avframe.display_picture_number < min_num)
+ min_num = s->delay_frames[i]->avframe.display_picture_number;
+
+ delayed_frame = remove_frame(s->delay_frames, min_num);
+ add_frame(s->delay_frames, MAX_DELAY, s->current_picture);
+ }
+
+ if (delayed_frame) {
+ delayed_frame->avframe.reference ^= DELAYED_PIC_REF;
+ *(AVFrame*)data = delayed_frame->avframe;
+ *data_size = sizeof(AVFrame);
+ }
+ } else if (s->current_picture->avframe.display_picture_number == s->frame_number) {
+ /* The right frame at the right time :-) */
+ *(AVFrame*)data = s->current_picture->avframe;
+ *data_size = sizeof(AVFrame);
+ }
+
+ if (*data_size)
+ s->frame_number = picture->avframe.display_picture_number + 1;
+
+ return buf_idx;
+}
+
+AVCodec ff_dirac_decoder = {
+ .name = "dirac",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_DIRAC,
+ .priv_data_size = sizeof(DiracContext),
+ .init = dirac_decode_init,
+ .close = dirac_decode_end,
+ .decode = dirac_decode_frame,
+ .capabilities = CODEC_CAP_DELAY,
+ .flush = dirac_decode_flush,
+ .long_name = NULL_IF_CONFIG_SMALL("BBC Dirac VC-2"),
+};
#include "get_bits.h"
#include "dnxhddata.h"
#include "dsputil.h"
+ #include "internal.h"
+#include "thread.h"
typedef struct DNXHDContext {
AVCodecContext *avctx;
av_log(avctx, AV_LOG_ERROR, "packet is too small\n");
return AVERROR(EINVAL);
}
+ if (out % avctx->channels) {
+ av_log(avctx, AV_LOG_WARNING, "channels have differing number of samples\n");
+ }
/* get output buffer */
- s->frame.nb_samples = out / avctx->channels;
+ s->frame.nb_samples = (out + avctx->channels - 1) / avctx->channels;
- if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
+ if ((ret = ff_get_buffer(avctx, &s->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
if (s->picture.data[0])
avctx->release_buffer(avctx, &s->picture);
- if (avctx->get_buffer(avctx, p) < 0) {
- if (av_image_check_size(w, h, 0, avctx))
- return -1;
- if (w != avctx->width || h != avctx->height)
- avcodec_set_dimensions(avctx, w, h);
+ if (ff_get_buffer(avctx, p) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
FFSWAP(AVFrame, s->last_frame, s->last2_frame);
FFSWAP(AVFrame, s->frame, s->last_frame);
- s->frame.reference = 1;
- s->frame.buffer_hints = FF_BUFFER_HINTS_VALID;
+ s->frame.reference = 3;
+ s->frame.buffer_hints = FF_BUFFER_HINTS_VALID |
+ FF_BUFFER_HINTS_READABLE |
+ FF_BUFFER_HINTS_PRESERVE;
- if (avctx->get_buffer(avctx, &s->frame)<0) {
+ if (ff_get_buffer(avctx, &s->frame)<0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
avcodec_set_dimensions(avctx, width, height);
if (s->frame.data[0])
avctx->release_buffer(avctx, &s->frame);
+ if (s->last_frame.data[0])
+ avctx->release_buffer(avctx, &s->last_frame);
}
- s->frame.reference = 1;
+ s->frame.reference = 3;
if (!s->frame.data[0]) {
- if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
- if (ff_get_buffer(avctx, &s->frame) < 0) {
++ if ((ret = ff_get_buffer(avctx, &s->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ return ret;
}
}
--- /dev/null
- if (avctx->get_buffer(avctx, &new_frame)) {
+/*
+ * Escape 130 Video Decoder
+ * Copyright (C) 2008 Eli Friedman (eli.friedman <at> gmail.com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
+
+#define BITSTREAM_READER_LE
+#include "get_bits.h"
++#include "internal.h"
++
+
+typedef struct Escape130Context {
+ AVFrame frame;
+ uint8_t *bases;
+} Escape130Context;
+
+/**
+ * Initialize the decoder
+ * @param avctx decoder context
+ * @return 0 success, negative on error
+ */
+static av_cold int escape130_decode_init(AVCodecContext *avctx)
+{
+ Escape130Context *s = avctx->priv_data;
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P;
+
+ if((avctx->width&1) || (avctx->height&1)){
+ av_log(avctx, AV_LOG_ERROR, "Dimensions are not a multiple of the block size\n");
+ return AVERROR(EINVAL);
+ }
+
+ s->bases= av_malloc(avctx->width * avctx->height /4);
+
+ return 0;
+}
+
+static av_cold int escape130_decode_close(AVCodecContext *avctx)
+{
+ Escape130Context *s = avctx->priv_data;
+
+ if (s->frame.data[0])
+ avctx->release_buffer(avctx, &s->frame);
+
+ av_freep(&s->bases);
+
+ return 0;
+}
+
+static unsigned decode_skip_count(GetBitContext* gb) {
+ unsigned value;
+ // This function reads a maximum of 27 bits,
+ // which is within the padding space
+ if (get_bits_left(gb) < 1+3)
+ return -1;
+
+ value = get_bits1(gb);
+ if (value)
+ return 0;
+
+ value = get_bits(gb, 3);
+ if (value)
+ return value;
+
+ value = get_bits(gb, 8);
+ if (value)
+ return value + 7;
+
+ value = get_bits(gb, 15);
+ if (value)
+ return value + 262;
+
+ return -1;
+}
+
+/**
+ * Decode a single frame
+ * @param avctx decoder context
+ * @param data decoded frame
+ * @param data_size size of the decoded frame
+ * @param buf input buffer
+ * @param buf_size input buffer size
+ * @return 0 success, -1 on error
+ */
+static int escape130_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ AVPacket *avpkt)
+{
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
+ Escape130Context *s = avctx->priv_data;
+
+ GetBitContext gb;
+ unsigned i;
+
+ uint8_t *old_y, *old_cb, *old_cr,
+ *new_y, *new_cb, *new_cr;
+ unsigned old_y_stride, old_cb_stride, old_cr_stride,
+ new_y_stride, new_cb_stride, new_cr_stride;
+ unsigned total_blocks = avctx->width * avctx->height / 4,
+ block_index, row_index = 0;
+ unsigned y[4] = {0}, cb = 16, cr = 16;
+ unsigned skip = -1;
+ unsigned y_base = 0;
+ uint8_t *yb= s->bases;
+
+ AVFrame new_frame = { { 0 } };
+
+ init_get_bits(&gb, buf, buf_size * 8);
+
+ if (get_bits_left(&gb) < 128)
+ return -1;
+
+ // Header; no useful information in here
+ skip_bits_long(&gb, 128);
+
+ new_frame.reference = 3;
++ if (ff_get_buffer(avctx, &new_frame)) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return -1;
+ }
+
+ new_y = new_frame.data[0];
+ new_cb = new_frame.data[1];
+ new_cr = new_frame.data[2];
+ new_y_stride = new_frame.linesize[0];
+ new_cb_stride = new_frame.linesize[1];
+ new_cr_stride = new_frame.linesize[2];
+ old_y = s->frame.data[0];
+ old_cb = s->frame.data[1];
+ old_cr = s->frame.data[2];
+ old_y_stride = s->frame.linesize[0];
+ old_cb_stride = s->frame.linesize[1];
+ old_cr_stride = s->frame.linesize[2];
+
+ av_log(avctx, AV_LOG_DEBUG,
+ "Strides: %i, %i\n",
+ new_y_stride, new_cb_stride);
+
+ for (block_index = 0; block_index < total_blocks; block_index++) {
+ // Note that this call will make us skip the rest of the blocks
+ // if the frame prematurely ends
+ if (skip == -1)
+ skip = decode_skip_count(&gb);
+
+ if (skip) {
+ if (old_y) {
+ y[0] = old_y[0] / 4;
+ y[1] = old_y[1] / 4;
+ y[2] = old_y[old_y_stride] / 4;
+ y[3] = old_y[old_y_stride+1] / 4;
+ y_base= yb[0];
+ cb = old_cb[0] / 8;
+ cr = old_cr[0] / 8;
+ } else {
+ y_base=y[0] = y[1] = y[2] = y[3] = 0;
+ cb = cr = 16;
+ }
+ } else {
+ if (get_bits1(&gb)) {
+ static const uint8_t offset_table[] = {2, 4, 10, 20};
+ static const int8_t sign_table[64][4] =
+ { {0, 0, 0, 0},
+ {-1, 1, 0, 0},
+ {1, -1, 0, 0},
+ {-1, 0, 1, 0},
+ {-1, 1, 1, 0},
+ {0, -1, 1, 0},
+ {1, -1, 1, 0},
+ {-1, -1, 1, 0},
+ {1, 0, -1, 0},
+ {0, 1, -1, 0},
+ {1, 1, -1, 0},
+ {-1, 1, -1, 0},
+ {1, -1, -1, 0},
+ {-1, 0, 0, 1},
+ {-1, 1, 0, 1},
+ {0, -1, 0, 1},
+
+ {0, 0, 0, 0},
+ {1, -1, 0, 1},
+ {-1, -1, 0, 1},
+ {-1, 0, 1, 1},
+ {-1, 1, 1, 1},
+ {0, -1, 1, 1},
+ {1, -1, 1, 1},
+ {-1, -1, 1, 1},
+ {0, 0, -1, 1},
+ {1, 0, -1, 1},
+ {-1, 0, -1, 1},
+ {0, 1, -1, 1},
+ {1, 1, -1, 1},
+ {-1, 1, -1, 1},
+ {0, -1, -1, 1},
+ {1, -1, -1, 1},
+
+ {0, 0, 0, 0},
+ {-1, -1, -1, 1},
+ {1, 0, 0, -1},
+ {0, 1, 0, -1},
+ {1, 1, 0, -1},
+ {-1, 1, 0, -1},
+ {1, -1, 0, -1},
+ {0, 0, 1, -1},
+ {1, 0, 1, -1},
+ {-1, 0, 1, -1},
+ {0, 1, 1, -1},
+ {1, 1, 1, -1},
+ {-1, 1, 1, -1},
+ {0, -1, 1, -1},
+ {1, -1, 1, -1},
+ {-1, -1, 1, -1},
+
+ {0, 0, 0, 0},
+ {1, 0, -1, -1},
+ {0, 1, -1, -1},
+ {1, 1, -1, -1},
+ {-1, 1, -1, -1},
+ {1, -1, -1, -1} };
+ unsigned sign_selector = get_bits(&gb, 6);
+ unsigned difference_selector = get_bits(&gb, 2);
+ y_base = 2 * get_bits(&gb, 5);
+ for (i = 0; i < 4; i++) {
+ y[i] = av_clip((int)y_base + offset_table[difference_selector] *
+ sign_table[sign_selector][i], 0, 63);
+ }
+ } else if (get_bits1(&gb)) {
+ if (get_bits1(&gb)) {
+ y_base = get_bits(&gb, 6);
+ } else {
+ unsigned adjust_index = get_bits(&gb, 3);
+ static const int8_t adjust[] = {-4, -3, -2, -1, 1, 2, 3, 4};
+ y_base = (y_base + adjust[adjust_index]) & 63;
+ }
+ for (i = 0; i < 4; i++)
+ y[i] = y_base;
+ }
+
+ if (get_bits1(&gb)) {
+ if (get_bits1(&gb)) {
+ cb = get_bits(&gb, 5);
+ cr = get_bits(&gb, 5);
+ } else {
+ unsigned adjust_index = get_bits(&gb, 3);
+ static const int8_t adjust[2][8] =
+ { { 1, 1, 0, -1, -1, -1, 0, 1 },
+ { 0, 1, 1, 1, 0, -1, -1, -1 } };
+ cb = (cb + adjust[0][adjust_index]) & 31;
+ cr = (cr + adjust[1][adjust_index]) & 31;
+ }
+ }
+ }
+ *yb++= y_base;
+
+ new_y[0] = y[0] * 4;
+ new_y[1] = y[1] * 4;
+ new_y[new_y_stride] = y[2] * 4;
+ new_y[new_y_stride + 1] = y[3] * 4;
+ *new_cb = cb * 8;
+ *new_cr = cr * 8;
+
+ if (old_y)
+ old_y += 2, old_cb++, old_cr++;
+ new_y += 2, new_cb++, new_cr++;
+ row_index++;
+ if (avctx->width / 2 == row_index) {
+ row_index = 0;
+ if (old_y) {
+ old_y += old_y_stride * 2 - avctx->width;
+ old_cb += old_cb_stride - avctx->width / 2;
+ old_cr += old_cr_stride - avctx->width / 2;
+ }
+ new_y += new_y_stride * 2 - avctx->width;
+ new_cb += new_cb_stride - avctx->width / 2;
+ new_cr += new_cr_stride - avctx->width / 2;
+ }
+
+ skip--;
+ }
+
+ av_log(avctx, AV_LOG_DEBUG,
+ "Escape sizes: %i, %i\n",
+ buf_size, get_bits_count(&gb) / 8);
+
+ if (s->frame.data[0])
+ avctx->release_buffer(avctx, &s->frame);
+
+ *(AVFrame*)data = s->frame = new_frame;
+ *data_size = sizeof(AVFrame);
+
+ return buf_size;
+}
+
+
+AVCodec ff_escape130_decoder = {
+ .name = "escape130",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_ESCAPE130,
+ .priv_data_size = sizeof(Escape130Context),
+ .init = escape130_decode_init,
+ .close = escape130_decode_close,
+ .decode = escape130_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Escape 130"),
+};
--- /dev/null
- r = avc->get_buffer(avc, &ws->frame);
+/*
+ * Wavesynth pseudo-codec
+ * Copyright (c) 2011 Nicolas George
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/intreadwrite.h"
+#include "libavutil/log.h"
+#include "avcodec.h"
++#include "internal.h"
++
+
+#define SIN_BITS 14
+#define WS_MAX_CHANNELS 32
+#define INF_TS 0x7FFFFFFFFFFFFFFF
+
+#define PINK_UNIT 128
+
+/*
+ Format of the extradata and packets
+
+ THIS INFORMATION IS NOT PART OF THE PUBLIC API OR ABI.
+ IT CAN CHANGE WITHOUT NOTIFICATION.
+
+ All numbers are in little endian.
+
+ The codec extradata define a set of intervals with uniform content.
+ Overlapping intervals are added together.
+
+ extradata:
+ uint32 number of intervals
+ ... intervals
+
+ interval:
+ int64 start timestamp; time_base must be 1/sample_rate;
+ start timestamps must be in ascending order
+ int64 end timestamp
+ uint32 type
+ uint32 channels mask
+ ... additional information, depends on type
+
+ sine interval (type fourcc "SINE"):
+ int32 start frequency, in 1/(1<<16) Hz
+ int32 end frequency
+ int32 start amplitude, 1<<16 is the full amplitude
+ int32 end amplitude
+ uint32 start phase, 0 is sin(0), 0x20000000 is sin(pi/2), etc.;
+ n | (1<<31) means to match the phase of previous channel #n
+
+ pink noise interval (type fourcc "NOIS"):
+ int32 start amplitude
+ int32 end amplitude
+
+ The input packets encode the time and duration of the requested segment.
+
+ packet:
+ int64 start timestamp
+ int32 duration
+
+*/
+
+enum ws_interval_type {
+ WS_SINE = MKTAG('S','I','N','E'),
+ WS_NOISE = MKTAG('N','O','I','S'),
+};
+
+struct ws_interval {
+ int64_t ts_start, ts_end;
+ uint64_t phi0, dphi0, ddphi;
+ uint64_t amp0, damp;
+ uint64_t phi, dphi, amp;
+ uint32_t channels;
+ enum ws_interval_type type;
+ int next;
+};
+
+struct wavesynth_context {
+ int64_t cur_ts;
+ int64_t next_ts;
+ int32_t *sin;
+ AVFrame frame;
+ struct ws_interval *inter;
+ uint32_t dither_state;
+ uint32_t pink_state;
+ int32_t pink_pool[PINK_UNIT];
+ unsigned pink_need, pink_pos;
+ int nb_inter;
+ int cur_inter;
+ int next_inter;
+};
+
+#define LCG_A 1284865837
+#define LCG_C 4150755663
+#define LCG_AI 849225893 /* A*AI = 1 [mod 1<<32] */
+
+static uint32_t lcg_next(uint32_t *s)
+{
+ *s = *s * LCG_A + LCG_C;
+ return *s;
+}
+
+static void lcg_seek(uint32_t *s, int64_t dt)
+{
+ uint32_t a, c, t = *s;
+
+ if (dt >= 0) {
+ a = LCG_A;
+ c = LCG_C;
+ } else { /* coefficients for a step backward */
+ a = LCG_AI;
+ c = (uint32_t)(LCG_AI * LCG_C);
+ dt = -dt;
+ }
+ while (dt) {
+ if (dt & 1)
+ t = a * t + c;
+ c *= a + 1; /* coefficients for a double step */
+ a *= a;
+ dt >>= 1;
+ }
+ *s = t;
+}
+
+/* Emulate pink noise by summing white noise at the sampling frequency,
+ * white noise at half the sampling frequency (each value taken twice),
+ * etc., with a total of 8 octaves.
+ * This is known as the Voss-McCartney algorithm. */
+
+static void pink_fill(struct wavesynth_context *ws)
+{
+ int32_t vt[7] = { 0 }, v = 0;
+ int i, j;
+
+ ws->pink_pos = 0;
+ if (!ws->pink_need)
+ return;
+ for (i = 0; i < PINK_UNIT; i++) {
+ for (j = 0; j < 7; j++) {
+ if ((i >> j) & 1)
+ break;
+ v -= vt[j];
+ vt[j] = (int32_t)lcg_next(&ws->pink_state) >> 3;
+ v += vt[j];
+ }
+ ws->pink_pool[i] = v + ((int32_t)lcg_next(&ws->pink_state) >> 3);
+ }
+ lcg_next(&ws->pink_state); /* so we use exactly 256 steps */
+}
+
+/**
+ * @return (1<<64) * a / b, without overflow, if a < b
+ */
+static uint64_t frac64(uint64_t a, uint64_t b)
+{
+ uint64_t r = 0;
+ int i;
+
+ if (b < (uint64_t)1 << 32) { /* b small, use two 32-bits steps */
+ a <<= 32;
+ return ((a / b) << 32) | ((a % b) << 32) / b;
+ }
+ if (b < (uint64_t)1 << 48) { /* b medium, use four 16-bits steps */
+ for (i = 0; i < 4; i++) {
+ a <<= 16;
+ r = (r << 16) | (a / b);
+ a %= b;
+ }
+ return r;
+ }
+ for (i = 63; i >= 0; i--) {
+ if (a >= (uint64_t)1 << 63 || a << 1 >= b) {
+ r |= (uint64_t)1 << i;
+ a = (a << 1) - b;
+ } else {
+ a <<= 1;
+ }
+ }
+ return r;
+}
+
+static uint64_t phi_at(struct ws_interval *in, int64_t ts)
+{
+ uint64_t dt = ts - in->ts_start;
+ uint64_t dt2 = dt & 1 ? /* dt * (dt - 1) / 2 without overflow */
+ dt * ((dt - 1) >> 1) : (dt >> 1) * (dt - 1);
+ return in->phi0 + dt * in->dphi0 + dt2 * in->ddphi;
+}
+
+static void wavesynth_seek(struct wavesynth_context *ws, int64_t ts)
+{
+ int *last, i;
+ struct ws_interval *in;
+
+ last = &ws->cur_inter;
+ for (i = 0; i < ws->nb_inter; i++) {
+ in = &ws->inter[i];
+ if (ts < in->ts_start)
+ break;
+ if (ts >= in->ts_end)
+ continue;
+ *last = i;
+ last = &in->next;
+ in->phi = phi_at(in, ts);
+ in->dphi = in->dphi0 + (ts - in->ts_start) * in->ddphi;
+ in->amp = in->amp0 + (ts - in->ts_start) * in->damp;
+ }
+ ws->next_inter = i;
+ ws->next_ts = i < ws->nb_inter ? ws->inter[i].ts_start : INF_TS;
+ *last = -1;
+ lcg_seek(&ws->dither_state, ts - ws->cur_ts);
+ if (ws->pink_need) {
+ int64_t pink_ts_cur = (ws->cur_ts + PINK_UNIT - 1) & ~(PINK_UNIT - 1);
+ int64_t pink_ts_next = ts & ~(PINK_UNIT - 1);
+ int pos = ts & (PINK_UNIT - 1);
+ lcg_seek(&ws->pink_state, (pink_ts_next - pink_ts_cur) << 1);
+ if (pos) {
+ pink_fill(ws);
+ ws->pink_pos = pos;
+ } else {
+ ws->pink_pos = PINK_UNIT;
+ }
+ }
+ ws->cur_ts = ts;
+}
+
+static int wavesynth_parse_extradata(AVCodecContext *avc)
+{
+ struct wavesynth_context *ws = avc->priv_data;
+ struct ws_interval *in;
+ uint8_t *edata, *edata_end;
+ int32_t f1, f2, a1, a2;
+ uint32_t phi;
+ int64_t dphi1, dphi2, dt, cur_ts = -0x8000000000000000;
+ int i;
+
+ if (avc->extradata_size < 4)
+ return AVERROR(EINVAL);
+ edata = avc->extradata;
+ edata_end = edata + avc->extradata_size;
+ ws->nb_inter = AV_RL32(edata);
+ edata += 4;
+ if (ws->nb_inter < 0)
+ return AVERROR(EINVAL);
+ ws->inter = av_calloc(ws->nb_inter, sizeof(*ws->inter));
+ if (!ws->inter)
+ return AVERROR(ENOMEM);
+ for (i = 0; i < ws->nb_inter; i++) {
+ in = &ws->inter[i];
+ if (edata_end - edata < 24)
+ return AVERROR(EINVAL);
+ in->ts_start = AV_RL64(edata + 0);
+ in->ts_end = AV_RL64(edata + 8);
+ in->type = AV_RL32(edata + 16);
+ in->channels = AV_RL32(edata + 20);
+ edata += 24;
+ if (in->ts_start < cur_ts || in->ts_end <= in->ts_start)
+ return AVERROR(EINVAL);
+ cur_ts = in->ts_start;
+ dt = in->ts_end - in->ts_start;
+ switch (in->type) {
+ case WS_SINE:
+ if (edata_end - edata < 20)
+ return AVERROR(EINVAL);
+ f1 = AV_RL32(edata + 0);
+ f2 = AV_RL32(edata + 4);
+ a1 = AV_RL32(edata + 8);
+ a2 = AV_RL32(edata + 12);
+ phi = AV_RL32(edata + 16);
+ edata += 20;
+ dphi1 = frac64(f1, (int64_t)avc->sample_rate << 16);
+ dphi2 = frac64(f2, (int64_t)avc->sample_rate << 16);
+ in->dphi0 = dphi1;
+ in->ddphi = (dphi2 - dphi1) / dt;
+ if (phi & 0x80000000) {
+ phi &= ~0x80000000;
+ if (phi >= i)
+ return AVERROR(EINVAL);
+ in->phi0 = phi_at(&ws->inter[phi], in->ts_start);
+ } else {
+ in->phi0 = (uint64_t)phi << 33;
+ }
+ break;
+ case WS_NOISE:
+ if (edata_end - edata < 8)
+ return AVERROR(EINVAL);
+ a1 = AV_RL32(edata + 0);
+ a2 = AV_RL32(edata + 4);
+ edata += 8;
+ break;
+ default:
+ return AVERROR(EINVAL);
+ }
+ in->amp0 = (int64_t)a1 << 32;
+ in->damp = (((int64_t)a2 << 32) - ((int64_t)a1 << 32)) / dt;
+ }
+ if (edata != edata_end)
+ return AVERROR(EINVAL);
+ return 0;
+}
+
+static av_cold int wavesynth_init(AVCodecContext *avc)
+{
+ struct wavesynth_context *ws = avc->priv_data;
+ int i, r;
+
+ if (avc->channels > WS_MAX_CHANNELS) {
+ av_log(avc, AV_LOG_ERROR,
+ "This implementation is limited to %d channels.\n",
+ WS_MAX_CHANNELS);
+ return AVERROR(EINVAL);
+ }
+ r = wavesynth_parse_extradata(avc);
+ if (r < 0) {
+ av_log(avc, AV_LOG_ERROR, "Invalid intervals definitions.\n");
+ goto fail;
+ }
+ ws->sin = av_malloc(sizeof(*ws->sin) << SIN_BITS);
+ if (!ws->sin) {
+ r = AVERROR(ENOMEM);
+ goto fail;
+ }
+ for (i = 0; i < 1 << SIN_BITS; i++)
+ ws->sin[i] = floor(32767 * sin(2 * M_PI * i / (1 << SIN_BITS)));
+ ws->dither_state = MKTAG('D','I','T','H');
+ for (i = 0; i < ws->nb_inter; i++)
+ ws->pink_need += ws->inter[i].type == WS_NOISE;
+ ws->pink_state = MKTAG('P','I','N','K');
+ ws->pink_pos = PINK_UNIT;
+ avcodec_get_frame_defaults(&ws->frame);
+ avc->coded_frame = &ws->frame;
+ wavesynth_seek(ws, 0);
+ avc->sample_fmt = AV_SAMPLE_FMT_S16;
+ return 0;
+
+fail:
+ av_free(ws->inter);
+ av_free(ws->sin);
+ return r;
+}
+
+static void wavesynth_synth_sample(struct wavesynth_context *ws, int64_t ts,
+ int32_t *channels)
+{
+ int32_t amp, val, *cv;
+ struct ws_interval *in;
+ int i, *last, pink;
+ uint32_t c, all_ch = 0;
+
+ i = ws->cur_inter;
+ last = &ws->cur_inter;
+ if (ws->pink_pos == PINK_UNIT)
+ pink_fill(ws);
+ pink = ws->pink_pool[ws->pink_pos++] >> 16;
+ while (i >= 0) {
+ in = &ws->inter[i];
+ i = in->next;
+ if (ts >= in->ts_end) {
+ *last = i;
+ continue;
+ }
+ last = &in->next;
+ amp = in->amp >> 32;
+ in->amp += in->damp;
+ switch (in->type) {
+ case WS_SINE:
+ val = amp * ws->sin[in->phi >> (64 - SIN_BITS)];
+ in->phi += in->dphi;
+ in->dphi += in->ddphi;
+ break;
+ case WS_NOISE:
+ val = amp * pink;
+ break;
+ default:
+ val = 0;
+ }
+ all_ch |= in->channels;
+ for (c = in->channels, cv = channels; c; c >>= 1, cv++)
+ if (c & 1)
+ *cv += val;
+ }
+ val = (int32_t)lcg_next(&ws->dither_state) >> 16;
+ for (c = all_ch, cv = channels; c; c >>= 1, cv++)
+ if (c & 1)
+ *cv += val;
+}
+
+static void wavesynth_enter_intervals(struct wavesynth_context *ws, int64_t ts)
+{
+ int *last, i;
+ struct ws_interval *in;
+
+ last = &ws->cur_inter;
+ for (i = ws->cur_inter; i >= 0; i = ws->inter[i].next)
+ last = &ws->inter[i].next;
+ for (i = ws->next_inter; i < ws->nb_inter; i++) {
+ in = &ws->inter[i];
+ if (ts < in->ts_start)
+ break;
+ if (ts >= in->ts_end)
+ continue;
+ *last = i;
+ last = &in->next;
+ in->phi = in->phi0;
+ in->dphi = in->dphi0;
+ in->amp = in->amp0;
+ }
+ ws->next_inter = i;
+ ws->next_ts = i < ws->nb_inter ? ws->inter[i].ts_start : INF_TS;
+ *last = -1;
+}
+
+static int wavesynth_decode(AVCodecContext *avc, void *rframe, int *rgot_frame,
+ AVPacket *packet)
+{
+ struct wavesynth_context *ws = avc->priv_data;
+ int64_t ts;
+ int duration;
+ int s, c, r;
+ int16_t *pcm;
+ int32_t channels[WS_MAX_CHANNELS];
+
+ *rgot_frame = 0;
+ if (packet->size != 12)
+ return AVERROR_INVALIDDATA;
+ ts = AV_RL64(packet->data);
+ if (ts != ws->cur_ts)
+ wavesynth_seek(ws, ts);
+ duration = AV_RL32(packet->data + 8);
+ if (duration <= 0)
+ return AVERROR(EINVAL);
+ ws->frame.nb_samples = duration;
++ r = ff_get_buffer(avc, &ws->frame);
+ if (r < 0)
+ return r;
+ pcm = (int16_t *)ws->frame.data[0];
+ for (s = 0; s < duration; s++, ts++) {
+ memset(channels, 0, avc->channels * sizeof(*channels));
+ if (ts >= ws->next_ts)
+ wavesynth_enter_intervals(ws, ts);
+ wavesynth_synth_sample(ws, ts, channels);
+ for (c = 0; c < avc->channels; c++)
+ *(pcm++) = channels[c] >> 16;
+ }
+ ws->cur_ts += duration;
+ *rgot_frame = 1;
+ *(AVFrame *)rframe = ws->frame;
+ return packet->size;
+}
+
+static av_cold int wavesynth_close(AVCodecContext *avc)
+{
+ struct wavesynth_context *ws = avc->priv_data;
+
+ av_free(ws->sin);
+ av_free(ws->inter);
+ return 0;
+}
+
+AVCodec ff_ffwavesynth_decoder = {
+ .name = "wavesynth",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_FFWAVESYNTH,
+ .priv_data_size = sizeof(struct wavesynth_context),
+ .init = wavesynth_init,
+ .close = wavesynth_close,
+ .decode = wavesynth_decode,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Wave synthesis pseudo-codec"),
+};
--- /dev/null
- ret = c->parent_avctx->get_buffer(c->parent_avctx, new);
+/*
+ * Copyright (c) 2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "frame_thread_encoder.h"
+
+#include "libavutil/fifo.h"
+#include "libavutil/avassert.h"
+#include "libavutil/imgutils.h"
+#include "avcodec.h"
+#include "internal.h"
+#include "thread.h"
+
+#if HAVE_PTHREADS
+#include <pthread.h>
+#elif HAVE_W32THREADS
+#include "w32pthreads.h"
+#elif HAVE_OS2THREADS
+#include "os2threads.h"
+#endif
+
+#define MAX_THREADS 64
+#define BUFFER_SIZE (2*MAX_THREADS)
+
+typedef struct{
+ void *indata;
+ void *outdata;
+ int64_t return_code;
+ unsigned index;
+} Task;
+
+typedef struct{
+ AVCodecContext *parent_avctx;
+ pthread_mutex_t buffer_mutex;
+
+ AVFifoBuffer *task_fifo;
+ pthread_mutex_t task_fifo_mutex;
+ pthread_cond_t task_fifo_cond;
+
+ Task finished_tasks[BUFFER_SIZE];
+ pthread_mutex_t finished_task_mutex;
+ pthread_cond_t finished_task_cond;
+
+ unsigned task_index;
+ unsigned finished_task_index;
+
+ pthread_t worker[MAX_THREADS];
+ int exit;
+} ThreadContext;
+
+static void * attribute_align_arg worker(void *v){
+ AVCodecContext *avctx = v;
+ ThreadContext *c = avctx->internal->frame_thread_encoder;
+ AVPacket *pkt = NULL;
+
+ while(!c->exit){
+ int got_packet, ret;
+ AVFrame *frame;
+ Task task;
+
+ if(!pkt) pkt= av_mallocz(sizeof(*pkt));
+ if(!pkt) continue;
+ av_init_packet(pkt);
+
+ pthread_mutex_lock(&c->task_fifo_mutex);
+ while (av_fifo_size(c->task_fifo) <= 0 || c->exit) {
+ if(c->exit){
+ pthread_mutex_unlock(&c->task_fifo_mutex);
+ goto end;
+ }
+ pthread_cond_wait(&c->task_fifo_cond, &c->task_fifo_mutex);
+ }
+ av_fifo_generic_read(c->task_fifo, &task, sizeof(task), NULL);
+ pthread_mutex_unlock(&c->task_fifo_mutex);
+ frame = task.indata;
+
+ ret = avcodec_encode_video2(avctx, pkt, frame, &got_packet);
+ pthread_mutex_lock(&c->buffer_mutex);
+ c->parent_avctx->release_buffer(c->parent_avctx, frame);
+ pthread_mutex_unlock(&c->buffer_mutex);
+ av_freep(&frame);
+ if(got_packet) {
+ av_dup_packet(pkt);
+ } else {
+ pkt->data = NULL;
+ pkt->size = 0;
+ }
+ pthread_mutex_lock(&c->finished_task_mutex);
+ c->finished_tasks[task.index].outdata = pkt; pkt = NULL;
+ c->finished_tasks[task.index].return_code = ret;
+ pthread_cond_signal(&c->finished_task_cond);
+ pthread_mutex_unlock(&c->finished_task_mutex);
+ }
+end:
+ av_free(pkt);
+ pthread_mutex_lock(&c->buffer_mutex);
+ avcodec_close(avctx);
+ pthread_mutex_unlock(&c->buffer_mutex);
+ av_freep(&avctx);
+ return NULL;
+}
+
+int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options){
+ int i=0;
+ ThreadContext *c;
+
+
+ if( !(avctx->thread_type & FF_THREAD_FRAME)
+ || !(avctx->codec->capabilities & CODEC_CAP_INTRA_ONLY))
+ return 0;
+
+ if(!avctx->thread_count) {
+ avctx->thread_count = ff_get_logical_cpus(avctx);
+ avctx->thread_count = FFMIN(avctx->thread_count, MAX_THREADS);
+ }
+
+ if(avctx->thread_count <= 1)
+ return 0;
+
+ if(avctx->thread_count > MAX_THREADS)
+ return AVERROR(EINVAL);
+
+ av_assert0(!avctx->internal->frame_thread_encoder);
+ c = avctx->internal->frame_thread_encoder = av_mallocz(sizeof(ThreadContext));
+ if(!c)
+ return AVERROR(ENOMEM);
+
+ c->parent_avctx = avctx;
+
+ c->task_fifo = av_fifo_alloc(sizeof(Task) * BUFFER_SIZE);
+ if(!c->task_fifo)
+ goto fail;
+
+ pthread_mutex_init(&c->task_fifo_mutex, NULL);
+ pthread_mutex_init(&c->finished_task_mutex, NULL);
+ pthread_mutex_init(&c->buffer_mutex, NULL);
+ pthread_cond_init(&c->task_fifo_cond, NULL);
+ pthread_cond_init(&c->finished_task_cond, NULL);
+
+ for(i=0; i<avctx->thread_count ; i++){
+ AVDictionary *tmp = NULL;
+ void *tmpv;
+ AVCodecContext *thread_avctx = avcodec_alloc_context3(avctx->codec);
+ if(!thread_avctx)
+ goto fail;
+ tmpv = thread_avctx->priv_data;
+ *thread_avctx = *avctx;
+ thread_avctx->priv_data = tmpv;
+ thread_avctx->internal = NULL;
+ memcpy(thread_avctx->priv_data, avctx->priv_data, avctx->codec->priv_data_size);
+ thread_avctx->thread_count = 1;
+ thread_avctx->active_thread_type &= ~FF_THREAD_FRAME;
+
+ av_dict_copy(&tmp, options, 0);
+ av_dict_set(&tmp, "threads", "1", 0);
+ if(avcodec_open2(thread_avctx, avctx->codec, &tmp) < 0) {
+ av_dict_free(&tmp);
+ goto fail;
+ }
+ av_dict_free(&tmp);
+ av_assert0(!thread_avctx->internal->frame_thread_encoder);
+ thread_avctx->internal->frame_thread_encoder = c;
+ if(pthread_create(&c->worker[i], NULL, worker, thread_avctx)) {
+ goto fail;
+ }
+ }
+
+ avctx->active_thread_type = FF_THREAD_FRAME;
+
+ return 0;
+fail:
+ avctx->thread_count = i;
+ av_log(avctx, AV_LOG_ERROR, "ff_frame_thread_encoder_init failed\n");
+ ff_frame_thread_encoder_free(avctx);
+ return -1;
+}
+
+void ff_frame_thread_encoder_free(AVCodecContext *avctx){
+ int i;
+ ThreadContext *c= avctx->internal->frame_thread_encoder;
+
+ pthread_mutex_lock(&c->task_fifo_mutex);
+ c->exit = 1;
+ pthread_cond_broadcast(&c->task_fifo_cond);
+ pthread_mutex_unlock(&c->task_fifo_mutex);
+
+ for (i=0; i<avctx->thread_count; i++) {
+ pthread_join(c->worker[i], NULL);
+ }
+
+ pthread_mutex_destroy(&c->task_fifo_mutex);
+ pthread_mutex_destroy(&c->finished_task_mutex);
+ pthread_mutex_destroy(&c->buffer_mutex);
+ pthread_cond_destroy(&c->task_fifo_cond);
+ pthread_cond_destroy(&c->finished_task_cond);
+ av_fifo_free(c->task_fifo); c->task_fifo = NULL;
+ av_freep(&avctx->internal->frame_thread_encoder);
+}
+
+int ff_thread_video_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet_ptr){
+ ThreadContext *c = avctx->internal->frame_thread_encoder;
+ Task task;
+ int ret;
+
+ av_assert1(!*got_packet_ptr);
+
+ if(frame){
+ if(!(avctx->flags & CODEC_FLAG_INPUT_PRESERVED)){
+ AVFrame *new = avcodec_alloc_frame();
+ if(!new)
+ return AVERROR(ENOMEM);
+ pthread_mutex_lock(&c->buffer_mutex);
++ ret = ff_get_buffer(c->parent_avctx, new);
+ pthread_mutex_unlock(&c->buffer_mutex);
+ if(ret<0)
+ return ret;
+ new->pts = frame->pts;
+ new->quality = frame->quality;
+ new->pict_type = frame->pict_type;
+ av_image_copy(new->data, new->linesize, (const uint8_t **)frame->data, frame->linesize,
+ avctx->pix_fmt, avctx->width, avctx->height);
+ frame = new;
+ }
+
+ task.index = c->task_index;
+ task.indata = (void*)frame;
+ pthread_mutex_lock(&c->task_fifo_mutex);
+ av_fifo_generic_write(c->task_fifo, &task, sizeof(task), NULL);
+ pthread_cond_signal(&c->task_fifo_cond);
+ pthread_mutex_unlock(&c->task_fifo_mutex);
+
+ c->task_index = (c->task_index+1) % BUFFER_SIZE;
+
+ if(!c->finished_tasks[c->finished_task_index].outdata && (c->task_index - c->finished_task_index) % BUFFER_SIZE <= avctx->thread_count)
+ return 0;
+ }
+
+ if(c->task_index == c->finished_task_index)
+ return 0;
+
+ pthread_mutex_lock(&c->finished_task_mutex);
+ while (!c->finished_tasks[c->finished_task_index].outdata) {
+ pthread_cond_wait(&c->finished_task_cond, &c->finished_task_mutex);
+ }
+ task = c->finished_tasks[c->finished_task_index];
+ *pkt = *(AVPacket*)(task.outdata);
+ if(pkt->data)
+ *got_packet_ptr = 1;
+ av_freep(&c->finished_tasks[c->finished_task_index].outdata);
+ c->finished_task_index = (c->finished_task_index+1) % BUFFER_SIZE;
+ pthread_mutex_unlock(&c->finished_task_mutex);
+
+ return task.return_code;
+}
#include "avcodec.h"
#include "bytestream.h"
+ #include "internal.h"
+#include "libavutil/opt.h"
+
+typedef struct {
+ AVClass *av_class;
+ int change_field_order;
+} FRWUContext;
static av_cold int decode_init(AVCodecContext *avctx)
{
#include "get_bits.h"
#include "acelp_vectors.h"
#include "celp_filters.h"
+#include "celp_math.h"
#include "g723_1_data.h"
+ #include "internal.h"
#define CNG_RANDOM_SEED 12345
}
p->frame.nb_samples = FRAME_LEN;
- if ((ret = avctx->get_buffer(avctx, &p->frame)) < 0) {
+ if ((ret = ff_get_buffer(avctx, &p->frame)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return ret;
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
}
out = (int16_t *)p->frame.data[0];
--- /dev/null
- if ((ret = avctx->get_buffer(avctx, &ctx->frame)) < 0) {
+/*
+ * G.729, G729 Annex D decoders
+ * Copyright (c) 2008 Vladimir Voroshilov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <inttypes.h>
+#include <string.h>
+
+#include "avcodec.h"
+#include "libavutil/avutil.h"
+#include "get_bits.h"
+#include "dsputil.h"
++#include "internal.h"
++
+
+#include "g729.h"
+#include "lsp.h"
+#include "celp_math.h"
+#include "celp_filters.h"
+#include "acelp_filters.h"
+#include "acelp_pitch_delay.h"
+#include "acelp_vectors.h"
+#include "g729data.h"
+#include "g729postfilter.h"
+
+/**
+ * minimum quantized LSF value (3.2.4)
+ * 0.005 in Q13
+ */
+#define LSFQ_MIN 40
+
+/**
+ * maximum quantized LSF value (3.2.4)
+ * 3.135 in Q13
+ */
+#define LSFQ_MAX 25681
+
+/**
+ * minimum LSF distance (3.2.4)
+ * 0.0391 in Q13
+ */
+#define LSFQ_DIFF_MIN 321
+
+/// interpolation filter length
+#define INTERPOL_LEN 11
+
+/**
+ * minimum gain pitch value (3.8, Equation 47)
+ * 0.2 in (1.14)
+ */
+#define SHARP_MIN 3277
+
+/**
+ * maximum gain pitch value (3.8, Equation 47)
+ * (EE) This does not comply with the specification.
+ * Specification says about 0.8, which should be
+ * 13107 in (1.14), but reference C code uses
+ * 13017 (equals to 0.7945) instead of it.
+ */
+#define SHARP_MAX 13017
+
+/**
+ * MR_ENERGY (mean removed energy) = mean_energy + 10 * log10(2^26 * subframe_size) in (7.13)
+ */
+#define MR_ENERGY 1018156
+
+#define DECISION_NOISE 0
+#define DECISION_INTERMEDIATE 1
+#define DECISION_VOICE 2
+
+typedef enum {
+ FORMAT_G729_8K = 0,
+ FORMAT_G729D_6K4,
+ FORMAT_COUNT,
+} G729Formats;
+
+typedef struct {
+ uint8_t ac_index_bits[2]; ///< adaptive codebook index for second subframe (size in bits)
+ uint8_t parity_bit; ///< parity bit for pitch delay
+ uint8_t gc_1st_index_bits; ///< gain codebook (first stage) index (size in bits)
+ uint8_t gc_2nd_index_bits; ///< gain codebook (second stage) index (size in bits)
+ uint8_t fc_signs_bits; ///< number of pulses in fixed-codebook vector
+ uint8_t fc_indexes_bits; ///< size (in bits) of fixed-codebook index entry
+} G729FormatDescription;
+
+typedef struct {
+ DSPContext dsp;
+ AVFrame frame;
+
+ /// past excitation signal buffer
+ int16_t exc_base[2*SUBFRAME_SIZE+PITCH_DELAY_MAX+INTERPOL_LEN];
+
+ int16_t* exc; ///< start of past excitation data in buffer
+ int pitch_delay_int_prev; ///< integer part of previous subframe's pitch delay (4.1.3)
+
+ /// (2.13) LSP quantizer outputs
+ int16_t past_quantizer_output_buf[MA_NP + 1][10];
+ int16_t* past_quantizer_outputs[MA_NP + 1];
+
+ int16_t lsfq[10]; ///< (2.13) quantized LSF coefficients from previous frame
+ int16_t lsp_buf[2][10]; ///< (0.15) LSP coefficients (previous and current frames) (3.2.5)
+ int16_t *lsp[2]; ///< pointers to lsp_buf
+
+ int16_t quant_energy[4]; ///< (5.10) past quantized energy
+
+ /// previous speech data for LP synthesis filter
+ int16_t syn_filter_data[10];
+
+
+ /// residual signal buffer (used in long-term postfilter)
+ int16_t residual[SUBFRAME_SIZE + RES_PREV_DATA_SIZE];
+
+ /// previous speech data for residual calculation filter
+ int16_t res_filter_data[SUBFRAME_SIZE+10];
+
+ /// previous speech data for short-term postfilter
+ int16_t pos_filter_data[SUBFRAME_SIZE+10];
+
+ /// (1.14) pitch gain of current and five previous subframes
+ int16_t past_gain_pitch[6];
+
+ /// (14.1) gain code from current and previous subframe
+ int16_t past_gain_code[2];
+
+ /// voice decision on previous subframe (0-noise, 1-intermediate, 2-voice), G.729D
+ int16_t voice_decision;
+
+ int16_t onset; ///< detected onset level (0-2)
+ int16_t was_periodic; ///< whether previous frame was declared as periodic or not (4.4)
+ int16_t ht_prev_data; ///< previous data for 4.2.3, equation 86
+ int gain_coeff; ///< (1.14) gain coefficient (4.2.4)
+ uint16_t rand_value; ///< random number generator value (4.4.4)
+ int ma_predictor_prev; ///< switched MA predictor of LSP quantizer from last good frame
+
+ /// (14.14) high-pass filter data (past input)
+ int hpf_f[2];
+
+ /// high-pass filter data (past output)
+ int16_t hpf_z[2];
+} G729Context;
+
+static const G729FormatDescription format_g729_8k = {
+ .ac_index_bits = {8,5},
+ .parity_bit = 1,
+ .gc_1st_index_bits = GC_1ST_IDX_BITS_8K,
+ .gc_2nd_index_bits = GC_2ND_IDX_BITS_8K,
+ .fc_signs_bits = 4,
+ .fc_indexes_bits = 13,
+};
+
+static const G729FormatDescription format_g729d_6k4 = {
+ .ac_index_bits = {8,4},
+ .parity_bit = 0,
+ .gc_1st_index_bits = GC_1ST_IDX_BITS_6K4,
+ .gc_2nd_index_bits = GC_2ND_IDX_BITS_6K4,
+ .fc_signs_bits = 2,
+ .fc_indexes_bits = 9,
+};
+
+/**
+ * @brief pseudo random number generator
+ */
+static inline uint16_t g729_prng(uint16_t value)
+{
+ return 31821 * value + 13849;
+}
+
+/**
+ * Get parity bit of bit 2..7
+ */
+static inline int get_parity(uint8_t value)
+{
+ return (0x6996966996696996ULL >> (value >> 2)) & 1;
+}
+
+/**
+ * Decodes LSF (Line Spectral Frequencies) from L0-L3 (3.2.4).
+ * @param[out] lsfq (2.13) quantized LSF coefficients
+ * @param[in,out] past_quantizer_outputs (2.13) quantizer outputs from previous frames
+ * @param ma_predictor switched MA predictor of LSP quantizer
+ * @param vq_1st first stage vector of quantizer
+ * @param vq_2nd_low second stage lower vector of LSP quantizer
+ * @param vq_2nd_high second stage higher vector of LSP quantizer
+ */
+static void lsf_decode(int16_t* lsfq, int16_t* past_quantizer_outputs[MA_NP + 1],
+ int16_t ma_predictor,
+ int16_t vq_1st, int16_t vq_2nd_low, int16_t vq_2nd_high)
+{
+ int i,j;
+ static const uint8_t min_distance[2]={10, 5}; //(2.13)
+ int16_t* quantizer_output = past_quantizer_outputs[MA_NP];
+
+ for (i = 0; i < 5; i++) {
+ quantizer_output[i] = cb_lsp_1st[vq_1st][i ] + cb_lsp_2nd[vq_2nd_low ][i ];
+ quantizer_output[i + 5] = cb_lsp_1st[vq_1st][i + 5] + cb_lsp_2nd[vq_2nd_high][i + 5];
+ }
+
+ for (j = 0; j < 2; j++) {
+ for (i = 1; i < 10; i++) {
+ int diff = (quantizer_output[i - 1] - quantizer_output[i] + min_distance[j]) >> 1;
+ if (diff > 0) {
+ quantizer_output[i - 1] -= diff;
+ quantizer_output[i ] += diff;
+ }
+ }
+ }
+
+ for (i = 0; i < 10; i++) {
+ int sum = quantizer_output[i] * cb_ma_predictor_sum[ma_predictor][i];
+ for (j = 0; j < MA_NP; j++)
+ sum += past_quantizer_outputs[j][i] * cb_ma_predictor[ma_predictor][j][i];
+
+ lsfq[i] = sum >> 15;
+ }
+
+ ff_acelp_reorder_lsf(lsfq, LSFQ_DIFF_MIN, LSFQ_MIN, LSFQ_MAX, 10);
+}
+
+/**
+ * Restores past LSP quantizer output using LSF from previous frame
+ * @param[in,out] lsfq (2.13) quantized LSF coefficients
+ * @param[in,out] past_quantizer_outputs (2.13) quantizer outputs from previous frames
+ * @param ma_predictor_prev MA predictor from previous frame
+ * @param lsfq_prev (2.13) quantized LSF coefficients from previous frame
+ */
+static void lsf_restore_from_previous(int16_t* lsfq,
+ int16_t* past_quantizer_outputs[MA_NP + 1],
+ int ma_predictor_prev)
+{
+ int16_t* quantizer_output = past_quantizer_outputs[MA_NP];
+ int i,k;
+
+ for (i = 0; i < 10; i++) {
+ int tmp = lsfq[i] << 15;
+
+ for (k = 0; k < MA_NP; k++)
+ tmp -= past_quantizer_outputs[k][i] * cb_ma_predictor[ma_predictor_prev][k][i];
+
+ quantizer_output[i] = ((tmp >> 15) * cb_ma_predictor_sum_inv[ma_predictor_prev][i]) >> 12;
+ }
+}
+
+/**
+ * Constructs new excitation signal and applies phase filter to it
+ * @param[out] out constructed speech signal
+ * @param in original excitation signal
+ * @param fc_cur (2.13) original fixed-codebook vector
+ * @param gain_code (14.1) gain code
+ * @param subframe_size length of the subframe
+ */
+static void g729d_get_new_exc(
+ int16_t* out,
+ const int16_t* in,
+ const int16_t* fc_cur,
+ int dstate,
+ int gain_code,
+ int subframe_size)
+{
+ int i;
+ int16_t fc_new[SUBFRAME_SIZE];
+
+ ff_celp_convolve_circ(fc_new, fc_cur, phase_filter[dstate], subframe_size);
+
+ for(i=0; i<subframe_size; i++)
+ {
+ out[i] = in[i];
+ out[i] -= (gain_code * fc_cur[i] + 0x2000) >> 14;
+ out[i] += (gain_code * fc_new[i] + 0x2000) >> 14;
+ }
+}
+
+/**
+ * Makes decision about onset in current subframe
+ * @param past_onset decision result of previous subframe
+ * @param past_gain_code gain code of current and previous subframe
+ *
+ * @return onset decision result for current subframe
+ */
+static int g729d_onset_decision(int past_onset, const int16_t* past_gain_code)
+{
+ if((past_gain_code[0] >> 1) > past_gain_code[1])
+ return 2;
+ else
+ return FFMAX(past_onset-1, 0);
+}
+
+/**
+ * Makes decision about voice presence in current subframe
+ * @param onset onset level
+ * @param prev_voice_decision voice decision result from previous subframe
+ * @param past_gain_pitch pitch gain of current and previous subframes
+ *
+ * @return voice decision result for current subframe
+ */
+static int16_t g729d_voice_decision(int onset, int prev_voice_decision, const int16_t* past_gain_pitch)
+{
+ int i, low_gain_pitch_cnt, voice_decision;
+
+ if(past_gain_pitch[0] >= 14745) // 0.9
+ voice_decision = DECISION_VOICE;
+ else if (past_gain_pitch[0] <= 9830) // 0.6
+ voice_decision = DECISION_NOISE;
+ else
+ voice_decision = DECISION_INTERMEDIATE;
+
+ for(i=0, low_gain_pitch_cnt=0; i<6; i++)
+ if(past_gain_pitch[i] < 9830)
+ low_gain_pitch_cnt++;
+
+ if(low_gain_pitch_cnt > 2 && !onset)
+ voice_decision = DECISION_NOISE;
+
+ if(!onset && voice_decision > prev_voice_decision + 1)
+ voice_decision--;
+
+ if(onset && voice_decision < DECISION_VOICE)
+ voice_decision++;
+
+ return voice_decision;
+}
+
+static int32_t scalarproduct_int16_c(const int16_t * v1, const int16_t * v2, int order)
+{
+ int res = 0;
+
+ while (order--)
+ res += *v1++ * *v2++;
+
+ return res;
+}
+
+static av_cold int decoder_init(AVCodecContext * avctx)
+{
+ G729Context* ctx = avctx->priv_data;
+ int i,k;
+
+ if (avctx->channels != 1) {
+ av_log(avctx, AV_LOG_ERROR, "Only mono sound is supported (requested channels: %d).\n", avctx->channels);
+ return AVERROR(EINVAL);
+ }
+ avctx->sample_fmt = AV_SAMPLE_FMT_S16;
+
+ /* Both 8kbit/s and 6.4kbit/s modes uses two subframes per frame. */
+ avctx->frame_size = SUBFRAME_SIZE << 1;
+
+ ctx->gain_coeff = 16384; // 1.0 in (1.14)
+
+ for (k = 0; k < MA_NP + 1; k++) {
+ ctx->past_quantizer_outputs[k] = ctx->past_quantizer_output_buf[k];
+ for (i = 1; i < 11; i++)
+ ctx->past_quantizer_outputs[k][i - 1] = (18717 * i) >> 3;
+ }
+
+ ctx->lsp[0] = ctx->lsp_buf[0];
+ ctx->lsp[1] = ctx->lsp_buf[1];
+ memcpy(ctx->lsp[0], lsp_init, 10 * sizeof(int16_t));
+
+ ctx->exc = &ctx->exc_base[PITCH_DELAY_MAX+INTERPOL_LEN];
+
+ ctx->pitch_delay_int_prev = PITCH_DELAY_MIN;
+
+ /* random seed initialization */
+ ctx->rand_value = 21845;
+
+ /* quantized prediction error */
+ for(i=0; i<4; i++)
+ ctx->quant_energy[i] = -14336; // -14 in (5.10)
+
+ ff_dsputil_init(&ctx->dsp, avctx);
+ ctx->dsp.scalarproduct_int16 = scalarproduct_int16_c;
+
+ avcodec_get_frame_defaults(&ctx->frame);
+ avctx->coded_frame = &ctx->frame;
+
+ return 0;
+}
+
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr,
+ AVPacket *avpkt)
+{
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
+ int16_t *out_frame;
+ GetBitContext gb;
+ const G729FormatDescription *format;
+ int frame_erasure = 0; ///< frame erasure detected during decoding
+ int bad_pitch = 0; ///< parity check failed
+ int i;
+ int16_t *tmp;
+ G729Formats packet_type;
+ G729Context *ctx = avctx->priv_data;
+ int16_t lp[2][11]; // (3.12)
+ uint8_t ma_predictor; ///< switched MA predictor of LSP quantizer
+ uint8_t quantizer_1st; ///< first stage vector of quantizer
+ uint8_t quantizer_2nd_lo; ///< second stage lower vector of quantizer (size in bits)
+ uint8_t quantizer_2nd_hi; ///< second stage higher vector of quantizer (size in bits)
+
+ int pitch_delay_int[2]; // pitch delay, integer part
+ int pitch_delay_3x; // pitch delay, multiplied by 3
+ int16_t fc[SUBFRAME_SIZE]; // fixed-codebook vector
+ int16_t synth[SUBFRAME_SIZE+10]; // fixed-codebook vector
+ int j, ret;
+ int gain_before, gain_after;
+ int is_periodic = 0; // whether one of the subframes is declared as periodic or not
+
+ ctx->frame.nb_samples = SUBFRAME_SIZE<<1;
++ if ((ret = ff_get_buffer(avctx, &ctx->frame)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+ out_frame = (int16_t*) ctx->frame.data[0];
+
+ if (buf_size == 10) {
+ packet_type = FORMAT_G729_8K;
+ format = &format_g729_8k;
+ //Reset voice decision
+ ctx->onset = 0;
+ ctx->voice_decision = DECISION_VOICE;
+ av_log(avctx, AV_LOG_DEBUG, "Packet type: %s\n", "G.729 @ 8kbit/s");
+ } else if (buf_size == 8) {
+ packet_type = FORMAT_G729D_6K4;
+ format = &format_g729d_6k4;
+ av_log(avctx, AV_LOG_DEBUG, "Packet type: %s\n", "G.729D @ 6.4kbit/s");
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "Packet size %d is unknown.\n", buf_size);
+ return AVERROR_INVALIDDATA;
+ }
+
+ for (i=0; i < buf_size; i++)
+ frame_erasure |= buf[i];
+ frame_erasure = !frame_erasure;
+
+ init_get_bits(&gb, buf, 8*buf_size);
+
+ ma_predictor = get_bits(&gb, 1);
+ quantizer_1st = get_bits(&gb, VQ_1ST_BITS);
+ quantizer_2nd_lo = get_bits(&gb, VQ_2ND_BITS);
+ quantizer_2nd_hi = get_bits(&gb, VQ_2ND_BITS);
+
+ if(frame_erasure)
+ lsf_restore_from_previous(ctx->lsfq, ctx->past_quantizer_outputs,
+ ctx->ma_predictor_prev);
+ else {
+ lsf_decode(ctx->lsfq, ctx->past_quantizer_outputs,
+ ma_predictor,
+ quantizer_1st, quantizer_2nd_lo, quantizer_2nd_hi);
+ ctx->ma_predictor_prev = ma_predictor;
+ }
+
+ tmp = ctx->past_quantizer_outputs[MA_NP];
+ memmove(ctx->past_quantizer_outputs + 1, ctx->past_quantizer_outputs,
+ MA_NP * sizeof(int16_t*));
+ ctx->past_quantizer_outputs[0] = tmp;
+
+ ff_acelp_lsf2lsp(ctx->lsp[1], ctx->lsfq, 10);
+
+ ff_acelp_lp_decode(&lp[0][0], &lp[1][0], ctx->lsp[1], ctx->lsp[0], 10);
+
+ FFSWAP(int16_t*, ctx->lsp[1], ctx->lsp[0]);
+
+ for (i = 0; i < 2; i++) {
+ int gain_corr_factor;
+
+ uint8_t ac_index; ///< adaptive codebook index
+ uint8_t pulses_signs; ///< fixed-codebook vector pulse signs
+ int fc_indexes; ///< fixed-codebook indexes
+ uint8_t gc_1st_index; ///< gain codebook (first stage) index
+ uint8_t gc_2nd_index; ///< gain codebook (second stage) index
+
+ ac_index = get_bits(&gb, format->ac_index_bits[i]);
+ if(!i && format->parity_bit)
+ bad_pitch = get_parity(ac_index) == get_bits1(&gb);
+ fc_indexes = get_bits(&gb, format->fc_indexes_bits);
+ pulses_signs = get_bits(&gb, format->fc_signs_bits);
+ gc_1st_index = get_bits(&gb, format->gc_1st_index_bits);
+ gc_2nd_index = get_bits(&gb, format->gc_2nd_index_bits);
+
+ if (frame_erasure)
+ pitch_delay_3x = 3 * ctx->pitch_delay_int_prev;
+ else if(!i) {
+ if (bad_pitch)
+ pitch_delay_3x = 3 * ctx->pitch_delay_int_prev;
+ else
+ pitch_delay_3x = ff_acelp_decode_8bit_to_1st_delay3(ac_index);
+ } else {
+ int pitch_delay_min = av_clip(ctx->pitch_delay_int_prev - 5,
+ PITCH_DELAY_MIN, PITCH_DELAY_MAX - 9);
+
+ if(packet_type == FORMAT_G729D_6K4)
+ pitch_delay_3x = ff_acelp_decode_4bit_to_2nd_delay3(ac_index, pitch_delay_min);
+ else
+ pitch_delay_3x = ff_acelp_decode_5_6_bit_to_2nd_delay3(ac_index, pitch_delay_min);
+ }
+
+ /* Round pitch delay to nearest (used everywhere except ff_acelp_interpolate). */
+ pitch_delay_int[i] = (pitch_delay_3x + 1) / 3;
+
+ if (frame_erasure) {
+ ctx->rand_value = g729_prng(ctx->rand_value);
+ fc_indexes = ctx->rand_value & ((1 << format->fc_indexes_bits) - 1);
+
+ ctx->rand_value = g729_prng(ctx->rand_value);
+ pulses_signs = ctx->rand_value;
+ }
+
+
+ memset(fc, 0, sizeof(int16_t) * SUBFRAME_SIZE);
+ switch (packet_type) {
+ case FORMAT_G729_8K:
+ ff_acelp_fc_pulse_per_track(fc, ff_fc_4pulses_8bits_tracks_13,
+ ff_fc_4pulses_8bits_track_4,
+ fc_indexes, pulses_signs, 3, 3);
+ break;
+ case FORMAT_G729D_6K4:
+ ff_acelp_fc_pulse_per_track(fc, ff_fc_2pulses_9bits_track1_gray,
+ ff_fc_2pulses_9bits_track2_gray,
+ fc_indexes, pulses_signs, 1, 4);
+ break;
+ }
+
+ /*
+ This filter enhances harmonic components of the fixed-codebook vector to
+ improve the quality of the reconstructed speech.
+
+ / fc_v[i], i < pitch_delay
+ fc_v[i] = <
+ \ fc_v[i] + gain_pitch * fc_v[i-pitch_delay], i >= pitch_delay
+ */
+ ff_acelp_weighted_vector_sum(fc + pitch_delay_int[i],
+ fc + pitch_delay_int[i],
+ fc, 1 << 14,
+ av_clip(ctx->past_gain_pitch[0], SHARP_MIN, SHARP_MAX),
+ 0, 14,
+ SUBFRAME_SIZE - pitch_delay_int[i]);
+
+ memmove(ctx->past_gain_pitch+1, ctx->past_gain_pitch, 5 * sizeof(int16_t));
+ ctx->past_gain_code[1] = ctx->past_gain_code[0];
+
+ if (frame_erasure) {
+ ctx->past_gain_pitch[0] = (29491 * ctx->past_gain_pitch[0]) >> 15; // 0.90 (0.15)
+ ctx->past_gain_code[0] = ( 2007 * ctx->past_gain_code[0] ) >> 11; // 0.98 (0.11)
+
+ gain_corr_factor = 0;
+ } else {
+ if (packet_type == FORMAT_G729D_6K4) {
+ ctx->past_gain_pitch[0] = cb_gain_1st_6k4[gc_1st_index][0] +
+ cb_gain_2nd_6k4[gc_2nd_index][0];
+ gain_corr_factor = cb_gain_1st_6k4[gc_1st_index][1] +
+ cb_gain_2nd_6k4[gc_2nd_index][1];
+
+ /* Without check below overflow can occur in ff_acelp_update_past_gain.
+ It is not issue for G.729, because gain_corr_factor in it's case is always
+ greater than 1024, while in G.729D it can be even zero. */
+ gain_corr_factor = FFMAX(gain_corr_factor, 1024);
+#ifndef G729_BITEXACT
+ gain_corr_factor >>= 1;
+#endif
+ } else {
+ ctx->past_gain_pitch[0] = cb_gain_1st_8k[gc_1st_index][0] +
+ cb_gain_2nd_8k[gc_2nd_index][0];
+ gain_corr_factor = cb_gain_1st_8k[gc_1st_index][1] +
+ cb_gain_2nd_8k[gc_2nd_index][1];
+ }
+
+ /* Decode the fixed-codebook gain. */
+ ctx->past_gain_code[0] = ff_acelp_decode_gain_code(&ctx->dsp, gain_corr_factor,
+ fc, MR_ENERGY,
+ ctx->quant_energy,
+ ma_prediction_coeff,
+ SUBFRAME_SIZE, 4);
+#ifdef G729_BITEXACT
+ /*
+ This correction required to get bit-exact result with
+ reference code, because gain_corr_factor in G.729D is
+ two times larger than in original G.729.
+
+ If bit-exact result is not issue then gain_corr_factor
+ can be simpler divided by 2 before call to g729_get_gain_code
+ instead of using correction below.
+ */
+ if (packet_type == FORMAT_G729D_6K4) {
+ gain_corr_factor >>= 1;
+ ctx->past_gain_code[0] >>= 1;
+ }
+#endif
+ }
+ ff_acelp_update_past_gain(ctx->quant_energy, gain_corr_factor, 2, frame_erasure);
+
+ /* Routine requires rounding to lowest. */
+ ff_acelp_interpolate(ctx->exc + i * SUBFRAME_SIZE,
+ ctx->exc + i * SUBFRAME_SIZE - pitch_delay_3x / 3,
+ ff_acelp_interp_filter, 6,
+ (pitch_delay_3x % 3) << 1,
+ 10, SUBFRAME_SIZE);
+
+ ff_acelp_weighted_vector_sum(ctx->exc + i * SUBFRAME_SIZE,
+ ctx->exc + i * SUBFRAME_SIZE, fc,
+ (!ctx->was_periodic && frame_erasure) ? 0 : ctx->past_gain_pitch[0],
+ ( ctx->was_periodic && frame_erasure) ? 0 : ctx->past_gain_code[0],
+ 1 << 13, 14, SUBFRAME_SIZE);
+
+ memcpy(synth, ctx->syn_filter_data, 10 * sizeof(int16_t));
+
+ if (ff_celp_lp_synthesis_filter(
+ synth+10,
+ &lp[i][1],
+ ctx->exc + i * SUBFRAME_SIZE,
+ SUBFRAME_SIZE,
+ 10,
+ 1,
+ 0,
+ 0x800))
+ /* Overflow occurred, downscale excitation signal... */
+ for (j = 0; j < 2 * SUBFRAME_SIZE + PITCH_DELAY_MAX + INTERPOL_LEN; j++)
+ ctx->exc_base[j] >>= 2;
+
+ /* ... and make synthesis again. */
+ if (packet_type == FORMAT_G729D_6K4) {
+ int16_t exc_new[SUBFRAME_SIZE];
+
+ ctx->onset = g729d_onset_decision(ctx->onset, ctx->past_gain_code);
+ ctx->voice_decision = g729d_voice_decision(ctx->onset, ctx->voice_decision, ctx->past_gain_pitch);
+
+ g729d_get_new_exc(exc_new, ctx->exc + i * SUBFRAME_SIZE, fc, ctx->voice_decision, ctx->past_gain_code[0], SUBFRAME_SIZE);
+
+ ff_celp_lp_synthesis_filter(
+ synth+10,
+ &lp[i][1],
+ exc_new,
+ SUBFRAME_SIZE,
+ 10,
+ 0,
+ 0,
+ 0x800);
+ } else {
+ ff_celp_lp_synthesis_filter(
+ synth+10,
+ &lp[i][1],
+ ctx->exc + i * SUBFRAME_SIZE,
+ SUBFRAME_SIZE,
+ 10,
+ 0,
+ 0,
+ 0x800);
+ }
+ /* Save data (without postfilter) for use in next subframe. */
+ memcpy(ctx->syn_filter_data, synth+SUBFRAME_SIZE, 10 * sizeof(int16_t));
+
+ /* Calculate gain of unfiltered signal for use in AGC. */
+ gain_before = 0;
+ for (j = 0; j < SUBFRAME_SIZE; j++)
+ gain_before += FFABS(synth[j+10]);
+
+ /* Call postfilter and also update voicing decision for use in next frame. */
+ ff_g729_postfilter(
+ &ctx->dsp,
+ &ctx->ht_prev_data,
+ &is_periodic,
+ &lp[i][0],
+ pitch_delay_int[0],
+ ctx->residual,
+ ctx->res_filter_data,
+ ctx->pos_filter_data,
+ synth+10,
+ SUBFRAME_SIZE);
+
+ /* Calculate gain of filtered signal for use in AGC. */
+ gain_after = 0;
+ for(j=0; j<SUBFRAME_SIZE; j++)
+ gain_after += FFABS(synth[j+10]);
+
+ ctx->gain_coeff = ff_g729_adaptive_gain_control(
+ gain_before,
+ gain_after,
+ synth+10,
+ SUBFRAME_SIZE,
+ ctx->gain_coeff);
+
+ if (frame_erasure)
+ ctx->pitch_delay_int_prev = FFMIN(ctx->pitch_delay_int_prev + 1, PITCH_DELAY_MAX);
+ else
+ ctx->pitch_delay_int_prev = pitch_delay_int[i];
+
+ memcpy(synth+8, ctx->hpf_z, 2*sizeof(int16_t));
+ ff_acelp_high_pass_filter(
+ out_frame + i*SUBFRAME_SIZE,
+ ctx->hpf_f,
+ synth+10,
+ SUBFRAME_SIZE);
+ memcpy(ctx->hpf_z, synth+8+SUBFRAME_SIZE, 2*sizeof(int16_t));
+ }
+
+ ctx->was_periodic = is_periodic;
+
+ /* Save signal for use in next frame. */
+ memmove(ctx->exc_base, ctx->exc_base + 2 * SUBFRAME_SIZE, (PITCH_DELAY_MAX+INTERPOL_LEN)*sizeof(int16_t));
+
+ *got_frame_ptr = 1;
+ *(AVFrame*)data = ctx->frame;
+ return buf_size;
+}
+
+AVCodec ff_g729_decoder = {
+ .name = "g729",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_G729,
+ .priv_data_size = sizeof(G729Context),
+ .init = decoder_init,
+ .decode = decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("G.729"),
+};
//#define DEBUG
#include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
#include "avcodec.h"
#include "bytestream.h"
+ #include "internal.h"
#include "lzw.h"
+#include "gif.h"
-#define GCE_DISPOSAL_NONE 0
-#define GCE_DISPOSAL_INPLACE 1
-#define GCE_DISPOSAL_BACKGROUND 2
-#define GCE_DISPOSAL_RESTORE 3
+/* This value is intentionally set to "transparent white" color.
+ * It is much better to have white background instead of black
+ * when gif image converted to format which not support transparency.
+ */
+#define GIF_TRANSPARENT_COLOR 0x00ffffff
typedef struct GifState {
+ const AVClass *class;
AVFrame picture;
int screen_width;
int screen_height;
AVFrame *picture = data;
int ret;
+ s->picture.pts = avpkt->pts;
+ s->picture.pkt_pts = avpkt->pts;
+ s->picture.pkt_dts = avpkt->dts;
+ s->picture.pkt_duration = avpkt->duration;
+
s->bytestream = buf;
s->bytestream_end = buf + buf_size;
- if (gif_read_header1(s) < 0)
- return -1;
- avctx->pix_fmt = AV_PIX_FMT_PAL8;
- if (av_image_check_size(s->screen_width, s->screen_height, 0, avctx))
- return -1;
- avcodec_set_dimensions(avctx, s->screen_width, s->screen_height);
+ if (buf_size >= 6) {
+ s->keyframe = memcmp(s->bytestream, gif87a_sig, 6) == 0 ||
+ memcmp(s->bytestream, gif89a_sig, 6) == 0;
+ } else {
+ s->keyframe = 0;
+ }
- if (s->picture.data[0])
- avctx->release_buffer(avctx, &s->picture);
- if (ff_get_buffer(avctx, &s->picture) < 0) {
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ if (s->keyframe) {
+ if ((ret = gif_read_header1(s)) < 0)
+ return ret;
+
+ if ((ret = av_image_check_size(s->screen_width, s->screen_height, 0, avctx)) < 0)
+ return ret;
+ avcodec_set_dimensions(avctx, s->screen_width, s->screen_height);
+
+ if (s->picture.data[0])
+ avctx->release_buffer(avctx, &s->picture);
+
- if ((ret = avctx->get_buffer(avctx, &s->picture)) < 0) {
++ if ((ret = ff_get_buffer(avctx, &s->picture)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+
+ s->picture.pict_type = AV_PICTURE_TYPE_I;
+ s->picture.key_frame = 1;
+ } else {
+ if ((ret = avctx->reget_buffer(avctx, &s->picture)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
+ return ret;
+ }
+
+ s->picture.pict_type = AV_PICTURE_TYPE_P;
+ s->picture.key_frame = 0;
}
- s->image_palette = (uint32_t *)s->picture.data[1];
- ret = gif_parse_next_image(s);
+
+ ret = gif_parse_next_image(s, got_picture);
if (ret < 0)
return ret;
+ else if (*got_picture)
+ *picture = s->picture;
- *picture = s->picture;
- *data_size = sizeof(AVPicture);
return s->bytestream - buf;
}
if (s->frame.data[0])
avctx->release_buffer(avctx, &s->frame);
- if ((ret = avctx->get_buffer(avctx, &s->frame))) {
- if (ff_get_buffer(avctx, &s->frame)) {
- av_log(avctx, AV_LOG_ERROR, " id CIN Video: get_buffer() failed\n");
- return -1;
++ if ((ret = ff_get_buffer(avctx, &s->frame))) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
}
- idcin_decode_vlcs(s);
+ if (idcin_decode_vlcs(s))
+ return AVERROR_INVALIDDATA;
if (pal) {
s->frame.palette_has_changed = 1;
#include "bytestream.h"
#include "avcodec.h"
#include "get_bits.h"
+ #include "internal.h"
+// TODO: masking bits
+typedef enum {
+ MASK_NONE,
+ MASK_HAS_MASK,
+ MASK_HAS_TRANSPARENT_COLOR,
+ MASK_LASSO
+} mask_type;
+
typedef struct {
AVFrame frame;
int planesize;
av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
return res;
}
- } else if ((res = avctx->get_buffer(avctx, &s->frame)) < 0) {
+ } else if ((res = ff_get_buffer(avctx, &s->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return res;
- } else if (avctx->bits_per_coded_sample <= 8 && avctx->pix_fmt != AV_PIX_FMT_GRAY8) {
+ } else if (avctx->bits_per_coded_sample <= 8 && avctx->pix_fmt == AV_PIX_FMT_PAL8) {
if ((res = ff_cmap_read_palette(avctx, (uint32_t*)s->frame.data[1])) < 0)
return res;
+ } else if (avctx->pix_fmt == AV_PIX_FMT_RGB32 && avctx->bits_per_coded_sample <= 8) {
+ if ((res = ff_cmap_read_palette(avctx, s->mask_palbuf)) < 0)
+ return res;
}
s->init = 1;
/* use BS_BUFFER flag for buffer switching */
ctx->buf_sel = (ctx->frame_flags >> BS_BUFFER) & 1;
- if ((res = avctx->get_buffer(avctx, &ctx->frame)) < 0) {
+ if (ctx->frame.data[0])
+ avctx->release_buffer(avctx, &ctx->frame);
+
+ ctx->frame.reference = 0;
++ if ((res = ff_get_buffer(avctx, &ctx->frame)) < 0) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return res;
+ }
+
/* decode luma plane */
if ((res = decode_plane(ctx, avctx, ctx->planes, ctx->y_data_ptr, ctx->y_data_size, 40)))
return res;
avctx->time_base);
}
+ /**
+ * Get a buffer for a frame. This is a wrapper around
+ * AVCodecContext.get_buffer() and should be used instead calling get_buffer()
+ * directly.
+ */
+ int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame);
+
+int ff_thread_can_start_frame(AVCodecContext *avctx);
+
+int ff_get_logical_cpus(AVCodecContext *avctx);
+
+int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx);
+
+/**
+ * Call avcodec_open2 recursively by decrementing counter, unlocking mutex,
+ * calling the function and then restoring again. Assumes the mutex is
+ * already locked
+ */
+int ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options);
+
+/**
+ * Call avcodec_close recursively, counterpart to avcodec_open2_recursive.
+ */
+int ff_codec_close_recursive(AVCodecContext *avctx);
+
#endif /* AVCODEC_INTERNAL_H */
buf_size - s->decoding_map_size);
s->current_frame.reference = 3;
- if (avctx->get_buffer(avctx, &s->current_frame)) {
+ if (ff_get_buffer(avctx, &s->current_frame)) {
- av_log(avctx, AV_LOG_ERROR, " Interplay Video: get_buffer() failed\n");
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
--- /dev/null
- if ((ret = s->avctx->get_buffer(s->avctx, &s->picture)) < 0)
+/*
+ * JPEG2000 image decoder
+ * Copyright (c) 2007 Kamil Nowosad
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * JPEG2000 image decoder
+ * @file
+ * @author Kamil Nowosad
+ */
+
+// #define DEBUG
+
+#include "avcodec.h"
+#include "bytestream.h"
++#include "internal.h"
+#include "j2k.h"
+#include "libavutil/common.h"
+
+#define JP2_SIG_TYPE 0x6A502020
+#define JP2_SIG_VALUE 0x0D0A870A
+#define JP2_CODESTREAM 0x6A703263
+
+#define HAD_COC 0x01
+#define HAD_QCC 0x02
+
+typedef struct {
+ J2kComponent *comp;
+ uint8_t properties[4];
+ J2kCodingStyle codsty[4];
+ J2kQuantStyle qntsty[4];
+} J2kTile;
+
+typedef struct {
+ AVCodecContext *avctx;
+ AVFrame picture;
+ GetByteContext g;
+
+ int width, height; ///< image width and height
+ int image_offset_x, image_offset_y;
+ int tile_offset_x, tile_offset_y;
+ uint8_t cbps[4]; ///< bits per sample in particular components
+ uint8_t sgnd[4]; ///< if a component is signed
+ uint8_t properties[4];
+ int cdx[4], cdy[4];
+ int precision;
+ int ncomponents;
+ int tile_width, tile_height; ///< tile size
+ int numXtiles, numYtiles;
+ int maxtilelen;
+
+ J2kCodingStyle codsty[4];
+ J2kQuantStyle qntsty[4];
+
+ int bit_index;
+
+ int curtileno;
+
+ J2kTile *tile;
+} J2kDecoderContext;
+
+static int get_bits(J2kDecoderContext *s, int n)
+{
+ int res = 0;
+
+ while (--n >= 0){
+ res <<= 1;
+ if (s->bit_index == 0) {
+ s->bit_index = 7 + (bytestream2_get_byte(&s->g) != 0xFFu);
+ }
+ s->bit_index--;
+ res |= (bytestream2_peek_byte(&s->g) >> s->bit_index) & 1;
+ }
+ return res;
+}
+
+static void j2k_flush(J2kDecoderContext *s)
+{
+ if (bytestream2_get_byte(&s->g) == 0xff)
+ bytestream2_skip(&s->g, 1);
+ s->bit_index = 8;
+}
+#if 0
+void printcomp(J2kComponent *comp)
+{
+ int i;
+ for (i = 0; i < comp->y1 - comp->y0; i++)
+ ff_j2k_printv(comp->data + i * (comp->x1 - comp->x0), comp->x1 - comp->x0);
+}
+
+static void nspaces(FILE *fd, int n)
+{
+ while(n--) putc(' ', fd);
+}
+
+static void dump(J2kDecoderContext *s, FILE *fd)
+{
+ int tileno, compno, reslevelno, bandno, precno;
+ fprintf(fd, "XSiz = %d, YSiz = %d, tile_width = %d, tile_height = %d\n"
+ "numXtiles = %d, numYtiles = %d, ncomponents = %d\n"
+ "tiles:\n",
+ s->width, s->height, s->tile_width, s->tile_height,
+ s->numXtiles, s->numYtiles, s->ncomponents);
+ for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
+ J2kTile *tile = s->tile + tileno;
+ nspaces(fd, 2);
+ fprintf(fd, "tile %d:\n", tileno);
+ for(compno = 0; compno < s->ncomponents; compno++){
+ J2kComponent *comp = tile->comp + compno;
+ nspaces(fd, 4);
+ fprintf(fd, "component %d:\n", compno);
+ nspaces(fd, 4);
+ fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d\n",
+ comp->x0, comp->x1, comp->y0, comp->y1);
+ for(reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
+ J2kResLevel *reslevel = comp->reslevel + reslevelno;
+ nspaces(fd, 6);
+ fprintf(fd, "reslevel %d:\n", reslevelno);
+ nspaces(fd, 6);
+ fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d, nbands = %d\n",
+ reslevel->x0, reslevel->x1, reslevel->y0,
+ reslevel->y1, reslevel->nbands);
+ for(bandno = 0; bandno < reslevel->nbands; bandno++){
+ J2kBand *band = reslevel->band + bandno;
+ nspaces(fd, 8);
+ fprintf(fd, "band %d:\n", bandno);
+ nspaces(fd, 8);
+ fprintf(fd, "x0 = %d, x1 = %d, y0 = %d, y1 = %d,"
+ "codeblock_width = %d, codeblock_height = %d cblknx = %d cblkny = %d\n",
+ band->x0, band->x1,
+ band->y0, band->y1,
+ band->codeblock_width, band->codeblock_height,
+ band->cblknx, band->cblkny);
+ for (precno = 0; precno < reslevel->num_precincts_x * reslevel->num_precincts_y; precno++){
+ J2kPrec *prec = band->prec + precno;
+ nspaces(fd, 10);
+ fprintf(fd, "prec %d:\n", precno);
+ nspaces(fd, 10);
+ fprintf(fd, "xi0 = %d, xi1 = %d, yi0 = %d, yi1 = %d\n",
+ prec->xi0, prec->xi1, prec->yi0, prec->yi1);
+ }
+ }
+ }
+ }
+ }
+}
+#endif
+
+/** decode the value stored in node */
+static int tag_tree_decode(J2kDecoderContext *s, J2kTgtNode *node, int threshold)
+{
+ J2kTgtNode *stack[30];
+ int sp = -1, curval = 0;
+
+ if(!node)
+ return AVERROR(EINVAL);
+
+ while(node && !node->vis){
+ stack[++sp] = node;
+ node = node->parent;
+ }
+
+ if (node)
+ curval = node->val;
+ else
+ curval = stack[sp]->val;
+
+ while(curval < threshold && sp >= 0){
+ if (curval < stack[sp]->val)
+ curval = stack[sp]->val;
+ while (curval < threshold){
+ int ret;
+ if ((ret = get_bits(s, 1)) > 0){
+ stack[sp]->vis++;
+ break;
+ } else if (!ret)
+ curval++;
+ else
+ return ret;
+ }
+ stack[sp]->val = curval;
+ sp--;
+ }
+ return curval;
+}
+
+/* marker segments */
+/** get sizes and offsets of image, tiles; number of components */
+static int get_siz(J2kDecoderContext *s)
+{
+ int i, ret;
+
+ if (bytestream2_get_bytes_left(&s->g) < 36)
+ return AVERROR(EINVAL);
+
+ bytestream2_get_be16u(&s->g); // Rsiz (skipped)
+ s->width = bytestream2_get_be32u(&s->g); // width
+ s->height = bytestream2_get_be32u(&s->g); // height
+ s->image_offset_x = bytestream2_get_be32u(&s->g); // X0Siz
+ s->image_offset_y = bytestream2_get_be32u(&s->g); // Y0Siz
+
+ s->tile_width = bytestream2_get_be32u(&s->g); // XTSiz
+ s->tile_height = bytestream2_get_be32u(&s->g); // YTSiz
+ s->tile_offset_x = bytestream2_get_be32u(&s->g); // XT0Siz
+ s->tile_offset_y = bytestream2_get_be32u(&s->g); // YT0Siz
+ s->ncomponents = bytestream2_get_be16u(&s->g); // CSiz
+
+ if(s->ncomponents <= 0 || s->ncomponents > 4) {
+ av_log(s->avctx, AV_LOG_ERROR, "unsupported/invalid ncomponents: %d\n", s->ncomponents);
+ return AVERROR(EINVAL);
+ }
+ if(s->tile_width<=0 || s->tile_height<=0)
+ return AVERROR(EINVAL);
+
+ if (bytestream2_get_bytes_left(&s->g) < 3 * s->ncomponents)
+ return AVERROR(EINVAL);
+
+ for (i = 0; i < s->ncomponents; i++){ // Ssiz_i XRsiz_i, YRsiz_i
+ uint8_t x = bytestream2_get_byteu(&s->g);
+ s->cbps[i] = (x & 0x7f) + 1;
+ s->precision = FFMAX(s->cbps[i], s->precision);
+ s->sgnd[i] = !!(x & 0x80);
+ s->cdx[i] = bytestream2_get_byteu(&s->g);
+ s->cdy[i] = bytestream2_get_byteu(&s->g);
+ }
+
+ s->numXtiles = ff_j2k_ceildiv(s->width - s->tile_offset_x, s->tile_width);
+ s->numYtiles = ff_j2k_ceildiv(s->height - s->tile_offset_y, s->tile_height);
+
+ if(s->numXtiles * (uint64_t)s->numYtiles > INT_MAX/sizeof(J2kTile))
+ return AVERROR(EINVAL);
+
+ s->tile = av_mallocz(s->numXtiles * s->numYtiles * sizeof(J2kTile));
+ if (!s->tile)
+ return AVERROR(ENOMEM);
+
+ for (i = 0; i < s->numXtiles * s->numYtiles; i++){
+ J2kTile *tile = s->tile + i;
+
+ tile->comp = av_mallocz(s->ncomponents * sizeof(J2kComponent));
+ if (!tile->comp)
+ return AVERROR(ENOMEM);
+ }
+
+ s->avctx->width = s->width - s->image_offset_x;
+ s->avctx->height = s->height - s->image_offset_y;
+
+ switch(s->ncomponents){
+ case 1:
+ if (s->precision > 8) {
+ s->avctx->pix_fmt = AV_PIX_FMT_GRAY16;
+ } else {
+ s->avctx->pix_fmt = AV_PIX_FMT_GRAY8;
+ }
+ break;
+ case 3:
+ if (s->precision > 8) {
+ s->avctx->pix_fmt = AV_PIX_FMT_RGB48;
+ } else {
+ s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
+ }
+ break;
+ case 4:
+ s->avctx->pix_fmt = AV_PIX_FMT_RGBA;
+ break;
+ }
+
+ if (s->picture.data[0])
+ s->avctx->release_buffer(s->avctx, &s->picture);
+
++ if ((ret = ff_get_buffer(s->avctx, &s->picture)) < 0)
+ return ret;
+
+ s->picture.pict_type = AV_PICTURE_TYPE_I;
+ s->picture.key_frame = 1;
+
+ return 0;
+}
+
+/** get common part for COD and COC segments */
+static int get_cox(J2kDecoderContext *s, J2kCodingStyle *c)
+{
+ if (bytestream2_get_bytes_left(&s->g) < 5)
+ return AVERROR(EINVAL);
+ c->nreslevels = bytestream2_get_byteu(&s->g) + 1; // num of resolution levels - 1
+ c->log2_cblk_width = bytestream2_get_byteu(&s->g) + 2; // cblk width
+ c->log2_cblk_height = bytestream2_get_byteu(&s->g) + 2; // cblk height
+
+ c->cblk_style = bytestream2_get_byteu(&s->g);
+ if (c->cblk_style != 0){ // cblk style
+ av_log(s->avctx, AV_LOG_WARNING, "extra cblk styles %X\n", c->cblk_style);
+ }
+ c->transform = bytestream2_get_byteu(&s->g); // transformation
+ if (c->csty & J2K_CSTY_PREC) {
+ int i;
+
+ for (i = 0; i < c->nreslevels; i++)
+ bytestream2_get_byte(&s->g);
+ }
+ return 0;
+}
+
+/** get coding parameters for a particular tile or whole image*/
+static int get_cod(J2kDecoderContext *s, J2kCodingStyle *c, uint8_t *properties)
+{
+ J2kCodingStyle tmp;
+ int compno;
+
+ if (bytestream2_get_bytes_left(&s->g) < 5)
+ return AVERROR(EINVAL);
+
+ tmp.log2_prec_width =
+ tmp.log2_prec_height = 15;
+
+ tmp.csty = bytestream2_get_byteu(&s->g);
+
+ if (bytestream2_get_byteu(&s->g)){ // progression level
+ av_log(s->avctx, AV_LOG_ERROR, "only LRCP progression supported\n");
+ return -1;
+ }
+
+ tmp.nlayers = bytestream2_get_be16u(&s->g);
+ tmp.mct = bytestream2_get_byteu(&s->g); // multiple component transformation
+
+ get_cox(s, &tmp);
+ for (compno = 0; compno < s->ncomponents; compno++){
+ if (!(properties[compno] & HAD_COC))
+ memcpy(c + compno, &tmp, sizeof(J2kCodingStyle));
+ }
+ return 0;
+}
+
+/** get coding parameters for a component in the whole image on a particular tile */
+static int get_coc(J2kDecoderContext *s, J2kCodingStyle *c, uint8_t *properties)
+{
+ int compno;
+
+ if (bytestream2_get_bytes_left(&s->g) < 2)
+ return AVERROR(EINVAL);
+
+ compno = bytestream2_get_byteu(&s->g);
+
+ c += compno;
+ c->csty = bytestream2_get_byte(&s->g);
+ get_cox(s, c);
+
+ properties[compno] |= HAD_COC;
+ return 0;
+}
+
+/** get common part for QCD and QCC segments */
+static int get_qcx(J2kDecoderContext *s, int n, J2kQuantStyle *q)
+{
+ int i, x;
+
+ if (bytestream2_get_bytes_left(&s->g) < 1)
+ return AVERROR(EINVAL);
+
+ x = bytestream2_get_byteu(&s->g); // Sqcd
+
+ q->nguardbits = x >> 5;
+ q->quantsty = x & 0x1f;
+
+ if (q->quantsty == J2K_QSTY_NONE){
+ n -= 3;
+ if (bytestream2_get_bytes_left(&s->g) < n || 32*3 < n)
+ return AVERROR(EINVAL);
+ for (i = 0; i < n; i++)
+ q->expn[i] = bytestream2_get_byteu(&s->g) >> 3;
+ } else if (q->quantsty == J2K_QSTY_SI){
+ if (bytestream2_get_bytes_left(&s->g) < 2)
+ return AVERROR(EINVAL);
+ x = bytestream2_get_be16u(&s->g);
+ q->expn[0] = x >> 11;
+ q->mant[0] = x & 0x7ff;
+ for (i = 1; i < 32 * 3; i++){
+ int curexpn = FFMAX(0, q->expn[0] - (i-1)/3);
+ q->expn[i] = curexpn;
+ q->mant[i] = q->mant[0];
+ }
+ } else{
+ n = (n - 3) >> 1;
+ if (bytestream2_get_bytes_left(&s->g) < 2 * n || 32*3 < n)
+ return AVERROR(EINVAL);
+ for (i = 0; i < n; i++){
+ x = bytestream2_get_be16u(&s->g);
+ q->expn[i] = x >> 11;
+ q->mant[i] = x & 0x7ff;
+ }
+ }
+ return 0;
+}
+
+/** get quantization parameters for a particular tile or a whole image */
+static int get_qcd(J2kDecoderContext *s, int n, J2kQuantStyle *q, uint8_t *properties)
+{
+ J2kQuantStyle tmp;
+ int compno;
+
+ if (get_qcx(s, n, &tmp))
+ return -1;
+ for (compno = 0; compno < s->ncomponents; compno++)
+ if (!(properties[compno] & HAD_QCC))
+ memcpy(q + compno, &tmp, sizeof(J2kQuantStyle));
+ return 0;
+}
+
+/** get quantization parameters for a component in the whole image on in a particular tile */
+static int get_qcc(J2kDecoderContext *s, int n, J2kQuantStyle *q, uint8_t *properties)
+{
+ int compno;
+
+ if (bytestream2_get_bytes_left(&s->g) < 1)
+ return AVERROR(EINVAL);
+
+ compno = bytestream2_get_byteu(&s->g);
+ properties[compno] |= HAD_QCC;
+ return get_qcx(s, n-1, q+compno);
+}
+
+/** get start of tile segment */
+static uint8_t get_sot(J2kDecoderContext *s)
+{
+ if (bytestream2_get_bytes_left(&s->g) < 8)
+ return AVERROR(EINVAL);
+
+ s->curtileno = bytestream2_get_be16u(&s->g); ///< Isot
+ if((unsigned)s->curtileno >= s->numXtiles * s->numYtiles){
+ s->curtileno=0;
+ return AVERROR(EINVAL);
+ }
+
+ bytestream2_skipu(&s->g, 4); ///< Psot (ignored)
+
+ if (!bytestream2_get_byteu(&s->g)){ ///< TPsot
+ J2kTile *tile = s->tile + s->curtileno;
+
+ /* copy defaults */
+ memcpy(tile->codsty, s->codsty, s->ncomponents * sizeof(J2kCodingStyle));
+ memcpy(tile->qntsty, s->qntsty, s->ncomponents * sizeof(J2kQuantStyle));
+ }
+ bytestream2_get_byteu(&s->g); ///< TNsot
+
+ return 0;
+}
+
+static int init_tile(J2kDecoderContext *s, int tileno)
+{
+ int compno,
+ tilex = tileno % s->numXtiles,
+ tiley = tileno / s->numXtiles;
+ J2kTile *tile = s->tile + tileno;
+
+ if (!tile->comp)
+ return AVERROR(ENOMEM);
+ for (compno = 0; compno < s->ncomponents; compno++){
+ J2kComponent *comp = tile->comp + compno;
+ J2kCodingStyle *codsty = tile->codsty + compno;
+ J2kQuantStyle *qntsty = tile->qntsty + compno;
+ int ret; // global bandno
+
+ comp->coord[0][0] = FFMAX(tilex * s->tile_width + s->tile_offset_x, s->image_offset_x);
+ comp->coord[0][1] = FFMIN((tilex+1)*s->tile_width + s->tile_offset_x, s->width);
+ comp->coord[1][0] = FFMAX(tiley * s->tile_height + s->tile_offset_y, s->image_offset_y);
+ comp->coord[1][1] = FFMIN((tiley+1)*s->tile_height + s->tile_offset_y, s->height);
+
+ if (ret = ff_j2k_init_component(comp, codsty, qntsty, s->cbps[compno], s->cdx[compno], s->cdy[compno]))
+ return ret;
+ }
+ return 0;
+}
+
+/** read the number of coding passes */
+static int getnpasses(J2kDecoderContext *s)
+{
+ int num;
+ if (!get_bits(s, 1))
+ return 1;
+ if (!get_bits(s, 1))
+ return 2;
+ if ((num = get_bits(s, 2)) != 3)
+ return num < 0 ? num : 3 + num;
+ if ((num = get_bits(s, 5)) != 31)
+ return num < 0 ? num : 6 + num;
+ num = get_bits(s, 7);
+ return num < 0 ? num : 37 + num;
+}
+
+static int getlblockinc(J2kDecoderContext *s)
+{
+ int res = 0, ret;
+ while (ret = get_bits(s, 1)){
+ if (ret < 0)
+ return ret;
+ res++;
+ }
+ return res;
+}
+
+static int decode_packet(J2kDecoderContext *s, J2kCodingStyle *codsty, J2kResLevel *rlevel, int precno,
+ int layno, uint8_t *expn, int numgbits)
+{
+ int bandno, cblkny, cblknx, cblkno, ret;
+
+ if (!(ret = get_bits(s, 1))){
+ j2k_flush(s);
+ return 0;
+ } else if (ret < 0)
+ return ret;
+
+ for (bandno = 0; bandno < rlevel->nbands; bandno++){
+ J2kBand *band = rlevel->band + bandno;
+ J2kPrec *prec = band->prec + precno;
+ int pos = 0;
+
+ if (band->coord[0][0] == band->coord[0][1]
+ || band->coord[1][0] == band->coord[1][1])
+ continue;
+
+ for (cblkny = prec->yi0; cblkny < prec->yi1; cblkny++)
+ for(cblknx = prec->xi0, cblkno = cblkny * band->cblknx + cblknx; cblknx < prec->xi1; cblknx++, cblkno++, pos++){
+ J2kCblk *cblk = band->cblk + cblkno;
+ int incl, newpasses, llen;
+
+ if (cblk->npasses)
+ incl = get_bits(s, 1);
+ else
+ incl = tag_tree_decode(s, prec->cblkincl + pos, layno+1) == layno;
+ if (!incl)
+ continue;
+ else if (incl < 0)
+ return incl;
+
+ if (!cblk->npasses)
+ cblk->nonzerobits = expn[bandno] + numgbits - 1 - tag_tree_decode(s, prec->zerobits + pos, 100);
+ if ((newpasses = getnpasses(s)) < 0)
+ return newpasses;
+ if ((llen = getlblockinc(s)) < 0)
+ return llen;
+ cblk->lblock += llen;
+ if ((ret = get_bits(s, av_log2(newpasses) + cblk->lblock)) < 0)
+ return ret;
+ cblk->lengthinc = ret;
+ cblk->npasses += newpasses;
+ }
+ }
+ j2k_flush(s);
+
+ if (codsty->csty & J2K_CSTY_EPH) {
+ if (bytestream2_peek_be16(&s->g) == J2K_EPH) {
+ bytestream2_skip(&s->g, 2);
+ } else {
+ av_log(s->avctx, AV_LOG_ERROR, "EPH marker not found.\n");
+ }
+ }
+
+ for (bandno = 0; bandno < rlevel->nbands; bandno++){
+ J2kBand *band = rlevel->band + bandno;
+ int yi, cblknw = band->prec[precno].xi1 - band->prec[precno].xi0;
+ for (yi = band->prec[precno].yi0; yi < band->prec[precno].yi1; yi++){
+ int xi;
+ for (xi = band->prec[precno].xi0; xi < band->prec[precno].xi1; xi++){
+ J2kCblk *cblk = band->cblk + yi * cblknw + xi;
+ if (bytestream2_get_bytes_left(&s->g) < cblk->lengthinc)
+ return AVERROR(EINVAL);
+ bytestream2_get_bufferu(&s->g, cblk->data, cblk->lengthinc);
+ cblk->length += cblk->lengthinc;
+ cblk->lengthinc = 0;
+ }
+ }
+ }
+ return 0;
+}
+
+static int decode_packets(J2kDecoderContext *s, J2kTile *tile)
+{
+ int layno, reslevelno, compno, precno, ok_reslevel;
+ s->bit_index = 8;
+ for (layno = 0; layno < tile->codsty[0].nlayers; layno++){
+ ok_reslevel = 1;
+ for (reslevelno = 0; ok_reslevel; reslevelno++){
+ ok_reslevel = 0;
+ for (compno = 0; compno < s->ncomponents; compno++){
+ J2kCodingStyle *codsty = tile->codsty + compno;
+ J2kQuantStyle *qntsty = tile->qntsty + compno;
+ if (reslevelno < codsty->nreslevels){
+ J2kResLevel *rlevel = tile->comp[compno].reslevel + reslevelno;
+ ok_reslevel = 1;
+ for (precno = 0; precno < rlevel->num_precincts_x * rlevel->num_precincts_y; precno++){
+ if (decode_packet(s, codsty, rlevel, precno, layno, qntsty->expn +
+ (reslevelno ? 3*(reslevelno-1)+1 : 0), qntsty->nguardbits))
+ return -1;
+ }
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+/* TIER-1 routines */
+static void decode_sigpass(J2kT1Context *t1, int width, int height, int bpno, int bandno, int bpass_csty_symbol,
+ int vert_causal_ctx_csty_symbol)
+{
+ int mask = 3 << (bpno - 1), y0, x, y;
+
+ for (y0 = 0; y0 < height; y0 += 4)
+ for (x = 0; x < width; x++)
+ for (y = y0; y < height && y < y0+4; y++){
+ if ((t1->flags[y+1][x+1] & J2K_T1_SIG_NB)
+ && !(t1->flags[y+1][x+1] & (J2K_T1_SIG | J2K_T1_VIS))){
+ int vert_causal_ctx_csty_loc_symbol = vert_causal_ctx_csty_symbol && (x == 3 && y == 3);
+ if (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ff_j2k_getnbctxno(t1->flags[y+1][x+1], bandno,
+ vert_causal_ctx_csty_loc_symbol))){
+ int xorbit, ctxno = ff_j2k_getsgnctxno(t1->flags[y+1][x+1], &xorbit);
+ if (bpass_csty_symbol)
+ t1->data[y][x] = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ? -mask : mask;
+ else
+ t1->data[y][x] = (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ^ xorbit) ?
+ -mask : mask;
+
+ ff_j2k_set_significant(t1, x, y, t1->data[y][x] < 0);
+ }
+ t1->flags[y+1][x+1] |= J2K_T1_VIS;
+ }
+ }
+}
+
+static void decode_refpass(J2kT1Context *t1, int width, int height, int bpno)
+{
+ int phalf, nhalf;
+ int y0, x, y;
+
+ phalf = 1 << (bpno - 1);
+ nhalf = -phalf;
+
+ for (y0 = 0; y0 < height; y0 += 4)
+ for (x = 0; x < width; x++)
+ for (y = y0; y < height && y < y0+4; y++){
+ if ((t1->flags[y+1][x+1] & (J2K_T1_SIG | J2K_T1_VIS)) == J2K_T1_SIG){
+ int ctxno = ff_j2k_getrefctxno(t1->flags[y+1][x+1]);
+ int r = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ? phalf : nhalf;
+ t1->data[y][x] += t1->data[y][x] < 0 ? -r : r;
+ t1->flags[y+1][x+1] |= J2K_T1_REF;
+ }
+ }
+}
+
+static void decode_clnpass(J2kDecoderContext *s, J2kT1Context *t1, int width, int height,
+ int bpno, int bandno, int seg_symbols)
+{
+ int mask = 3 << (bpno - 1), y0, x, y, runlen, dec;
+
+ for (y0 = 0; y0 < height; y0 += 4) {
+ for (x = 0; x < width; x++){
+ if (y0 + 3 < height && !(
+ (t1->flags[y0+1][x+1] & (J2K_T1_SIG_NB | J2K_T1_VIS | J2K_T1_SIG)) ||
+ (t1->flags[y0+2][x+1] & (J2K_T1_SIG_NB | J2K_T1_VIS | J2K_T1_SIG)) ||
+ (t1->flags[y0+3][x+1] & (J2K_T1_SIG_NB | J2K_T1_VIS | J2K_T1_SIG)) ||
+ (t1->flags[y0+4][x+1] & (J2K_T1_SIG_NB | J2K_T1_VIS | J2K_T1_SIG)))){
+ if (!ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_RL))
+ continue;
+ runlen = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI);
+ runlen = (runlen << 1) | ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI);
+ dec = 1;
+ } else{
+ runlen = 0;
+ dec = 0;
+ }
+
+ for (y = y0 + runlen; y < y0 + 4 && y < height; y++){
+ if (!dec){
+ if (!(t1->flags[y+1][x+1] & (J2K_T1_SIG | J2K_T1_VIS)))
+ dec = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ff_j2k_getnbctxno(t1->flags[y+1][x+1],
+ bandno, 0));
+ }
+ if (dec){
+ int xorbit, ctxno = ff_j2k_getsgnctxno(t1->flags[y+1][x+1], &xorbit);
+ t1->data[y][x] = (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ^ xorbit) ? -mask : mask;
+ ff_j2k_set_significant(t1, x, y, t1->data[y][x] < 0);
+ }
+ dec = 0;
+ t1->flags[y+1][x+1] &= ~J2K_T1_VIS;
+ }
+ }
+ }
+ if (seg_symbols) {
+ int val;
+ val = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI);
+ val = (val << 1) + ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI);
+ val = (val << 1) + ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI);
+ val = (val << 1) + ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI);
+ if (val != 0xa) {
+ av_log(s->avctx, AV_LOG_ERROR,"Segmentation symbol value incorrect\n");
+ }
+ }
+}
+
+static int decode_cblk(J2kDecoderContext *s, J2kCodingStyle *codsty, J2kT1Context *t1, J2kCblk *cblk,
+ int width, int height, int bandpos)
+{
+ int passno = cblk->npasses, pass_t = 2, bpno = cblk->nonzerobits - 1, y, clnpass_cnt = 0;
+ int bpass_csty_symbol = J2K_CBLK_BYPASS & codsty->cblk_style;
+ int vert_causal_ctx_csty_symbol = J2K_CBLK_VSC & codsty->cblk_style;
+
+ for (y = 0; y < height+2; y++)
+ memset(t1->flags[y], 0, (width+2)*sizeof(int));
+
+ for (y = 0; y < height; y++)
+ memset(t1->data[y], 0, width*sizeof(int));
+
+ cblk->data[cblk->length] = 0xff;
+ cblk->data[cblk->length+1] = 0xff;
+ ff_mqc_initdec(&t1->mqc, cblk->data);
+
+ while(passno--){
+ switch(pass_t){
+ case 0: decode_sigpass(t1, width, height, bpno+1, bandpos,
+ bpass_csty_symbol && (clnpass_cnt >= 4), vert_causal_ctx_csty_symbol);
+ break;
+ case 1: decode_refpass(t1, width, height, bpno+1);
+ if (bpass_csty_symbol && clnpass_cnt >= 4)
+ ff_mqc_initdec(&t1->mqc, cblk->data);
+ break;
+ case 2: decode_clnpass(s, t1, width, height, bpno+1, bandpos,
+ codsty->cblk_style & J2K_CBLK_SEGSYM);
+ clnpass_cnt = clnpass_cnt + 1;
+ if (bpass_csty_symbol && clnpass_cnt >= 4)
+ ff_mqc_initdec(&t1->mqc, cblk->data);
+ break;
+ }
+
+ pass_t++;
+ if (pass_t == 3){
+ bpno--;
+ pass_t = 0;
+ }
+ }
+ return 0;
+}
+
+static void mct_decode(J2kDecoderContext *s, J2kTile *tile)
+{
+ int i, *src[3], i0, i1, i2, csize = 1;
+
+ for (i = 0; i < 3; i++)
+ src[i] = tile->comp[i].data;
+
+ for (i = 0; i < 2; i++)
+ csize *= tile->comp[0].coord[i][1] - tile->comp[0].coord[i][0];
+
+ if (tile->codsty[0].transform == FF_DWT97){
+ for (i = 0; i < csize; i++){
+ i0 = *src[0] + (*src[2] * 46802 >> 16);
+ i1 = *src[0] - (*src[1] * 22553 + *src[2] * 46802 >> 16);
+ i2 = *src[0] + (116130 * *src[1] >> 16);
+ *src[0]++ = i0;
+ *src[1]++ = i1;
+ *src[2]++ = i2;
+ }
+ } else{
+ for (i = 0; i < csize; i++){
+ i1 = *src[0] - (*src[2] + *src[1] >> 2);
+ i0 = i1 + *src[2];
+ i2 = i1 + *src[1];
+ *src[0]++ = i0;
+ *src[1]++ = i1;
+ *src[2]++ = i2;
+ }
+ }
+}
+
+static int decode_tile(J2kDecoderContext *s, J2kTile *tile)
+{
+ int compno, reslevelno, bandno;
+ int x, y, *src[4];
+ uint8_t *line;
+ J2kT1Context t1;
+
+ for (compno = 0; compno < s->ncomponents; compno++){
+ J2kComponent *comp = tile->comp + compno;
+ J2kCodingStyle *codsty = tile->codsty + compno;
+
+ for (reslevelno = 0; reslevelno < codsty->nreslevels; reslevelno++){
+ J2kResLevel *rlevel = comp->reslevel + reslevelno;
+ for (bandno = 0; bandno < rlevel->nbands; bandno++){
+ J2kBand *band = rlevel->band + bandno;
+ int cblkx, cblky, cblkno=0, xx0, x0, xx1, y0, yy0, yy1, bandpos;
+
+ bandpos = bandno + (reslevelno > 0);
+
+ yy0 = bandno == 0 ? 0 : comp->reslevel[reslevelno-1].coord[1][1] - comp->reslevel[reslevelno-1].coord[1][0];
+ y0 = yy0;
+ yy1 = FFMIN(ff_j2k_ceildiv(band->coord[1][0] + 1, band->codeblock_height) * band->codeblock_height,
+ band->coord[1][1]) - band->coord[1][0] + yy0;
+
+ if (band->coord[0][0] == band->coord[0][1] || band->coord[1][0] == band->coord[1][1])
+ continue;
+
+ for (cblky = 0; cblky < band->cblkny; cblky++){
+ if (reslevelno == 0 || bandno == 1)
+ xx0 = 0;
+ else
+ xx0 = comp->reslevel[reslevelno-1].coord[0][1] - comp->reslevel[reslevelno-1].coord[0][0];
+ x0 = xx0;
+ xx1 = FFMIN(ff_j2k_ceildiv(band->coord[0][0] + 1, band->codeblock_width) * band->codeblock_width,
+ band->coord[0][1]) - band->coord[0][0] + xx0;
+
+ for (cblkx = 0; cblkx < band->cblknx; cblkx++, cblkno++){
+ int y, x;
+ decode_cblk(s, codsty, &t1, band->cblk + cblkno, xx1 - xx0, yy1 - yy0, bandpos);
+ if (codsty->transform == FF_DWT53){
+ for (y = yy0; y < yy1; y+=s->cdy[compno]){
+ int *ptr = t1.data[y-yy0];
+ for (x = xx0; x < xx1; x+=s->cdx[compno]){
+ comp->data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] = *ptr++ >> 1;
+ }
+ }
+ } else{
+ for (y = yy0; y < yy1; y+=s->cdy[compno]){
+ int *ptr = t1.data[y-yy0];
+ for (x = xx0; x < xx1; x+=s->cdx[compno]){
+ int tmp = ((int64_t)*ptr++) * ((int64_t)band->stepsize) >> 13, tmp2;
+ tmp2 = FFABS(tmp>>1) + (tmp&1);
+ comp->data[(comp->coord[0][1] - comp->coord[0][0]) * y + x] = tmp < 0 ? -tmp2 : tmp2;
+ }
+ }
+ }
+ xx0 = xx1;
+ xx1 = FFMIN(xx1 + band->codeblock_width, band->coord[0][1] - band->coord[0][0] + x0);
+ }
+ yy0 = yy1;
+ yy1 = FFMIN(yy1 + band->codeblock_height, band->coord[1][1] - band->coord[1][0] + y0);
+ }
+ }
+ }
+ ff_j2k_dwt_decode(&comp->dwt, comp->data);
+ src[compno] = comp->data;
+ }
+ if (tile->codsty[0].mct)
+ mct_decode(s, tile);
+
+ if (s->precision <= 8) {
+ for (compno = 0; compno < s->ncomponents; compno++){
+ y = tile->comp[compno].coord[1][0] - s->image_offset_y;
+ line = s->picture.data[0] + y * s->picture.linesize[0];
+ for (; y < tile->comp[compno].coord[1][1] - s->image_offset_y; y += s->cdy[compno]){
+ uint8_t *dst;
+
+ x = tile->comp[compno].coord[0][0] - s->image_offset_x;
+ dst = line + x * s->ncomponents + compno;
+
+ for (; x < tile->comp[compno].coord[0][1] - s->image_offset_x; x += s->cdx[compno]) {
+ *src[compno] += 1 << (s->cbps[compno]-1);
+ if (*src[compno] < 0)
+ *src[compno] = 0;
+ else if (*src[compno] >= (1 << s->cbps[compno]))
+ *src[compno] = (1 << s->cbps[compno]) - 1;
+ *dst = *src[compno]++;
+ dst += s->ncomponents;
+ }
+ line += s->picture.linesize[0];
+ }
+ }
+ } else {
+ for (compno = 0; compno < s->ncomponents; compno++) {
+ y = tile->comp[compno].coord[1][0] - s->image_offset_y;
+ line = s->picture.data[0] + y * s->picture.linesize[0];
+ for (; y < tile->comp[compno].coord[1][1] - s->image_offset_y; y += s->cdy[compno]) {
+ uint16_t *dst;
+
+ x = tile->comp[compno].coord[0][0] - s->image_offset_x;
+ dst = (uint16_t *)(line + (x * s->ncomponents + compno) * 2);
+ for (; x < tile->comp[compno].coord[0][1] - s->image_offset_x; x += s-> cdx[compno]) {
+ int32_t val;
+
+ val = *src[compno]++ << (16 - s->cbps[compno]);
+ val += 1 << 15;
+ val = av_clip(val, 0, (1 << 16) - 1);
+ *dst = val;
+ dst += s->ncomponents;
+ }
+ line += s->picture.linesize[0];
+ }
+ }
+ }
+ return 0;
+}
+
+static void cleanup(J2kDecoderContext *s)
+{
+ int tileno, compno;
+ for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++){
+ for (compno = 0; compno < s->ncomponents; compno++){
+ J2kComponent *comp = s->tile[tileno].comp + compno;
+ J2kCodingStyle *codsty = s->tile[tileno].codsty + compno;
+
+ ff_j2k_cleanup(comp, codsty);
+ }
+ av_freep(&s->tile[tileno].comp);
+ }
+ av_freep(&s->tile);
+}
+
+static int decode_codestream(J2kDecoderContext *s)
+{
+ J2kCodingStyle *codsty = s->codsty;
+ J2kQuantStyle *qntsty = s->qntsty;
+ uint8_t *properties = s->properties;
+
+ for (;;){
+ int oldpos, marker, len, ret = 0;
+
+ if (bytestream2_get_bytes_left(&s->g) < 2){
+ av_log(s->avctx, AV_LOG_ERROR, "Missing EOC\n");
+ break;
+ }
+
+ marker = bytestream2_get_be16u(&s->g);
+ av_dlog(s->avctx, "marker 0x%.4X at pos 0x%x\n", marker, bytestream2_tell(&s->g) - 4);
+ oldpos = bytestream2_tell(&s->g);
+
+ if (marker == J2K_SOD){
+ J2kTile *tile = s->tile + s->curtileno;
+ if (ret = init_tile(s, s->curtileno)) {
+ av_log(s->avctx, AV_LOG_ERROR, "tile initialization failed\n");
+ return ret;
+ }
+ if (ret = decode_packets(s, tile)) {
+ av_log(s->avctx, AV_LOG_ERROR, "packets decoding failed\n");
+ return ret;
+ }
+ continue;
+ }
+ if (marker == J2K_EOC)
+ break;
+
+ if (bytestream2_get_bytes_left(&s->g) < 2)
+ return AVERROR(EINVAL);
+ len = bytestream2_get_be16u(&s->g);
+ switch (marker){
+ case J2K_SIZ:
+ ret = get_siz(s);
+ break;
+ case J2K_COC:
+ ret = get_coc(s, codsty, properties);
+ break;
+ case J2K_COD:
+ ret = get_cod(s, codsty, properties);
+ break;
+ case J2K_QCC:
+ ret = get_qcc(s, len, qntsty, properties);
+ break;
+ case J2K_QCD:
+ ret = get_qcd(s, len, qntsty, properties);
+ break;
+ case J2K_SOT:
+ if (!(ret = get_sot(s))){
+ codsty = s->tile[s->curtileno].codsty;
+ qntsty = s->tile[s->curtileno].qntsty;
+ properties = s->tile[s->curtileno].properties;
+ }
+ break;
+ case J2K_COM:
+ // the comment is ignored
+ bytestream2_skip(&s->g, len - 2);
+ break;
+ default:
+ av_log(s->avctx, AV_LOG_ERROR, "unsupported marker 0x%.4X at pos 0x%x\n", marker, bytestream2_tell(&s->g) - 4);
+ bytestream2_skip(&s->g, len - 2);
+ break;
+ }
+ if (bytestream2_tell(&s->g) - oldpos != len || ret){
+ av_log(s->avctx, AV_LOG_ERROR, "error during processing marker segment %.4x\n", marker);
+ return ret ? ret : -1;
+ }
+ }
+ return 0;
+}
+
+static int jp2_find_codestream(J2kDecoderContext *s)
+{
+ uint32_t atom_size, atom;
+ int found_codestream = 0, search_range = 10;
+
+ while(!found_codestream && search_range && bytestream2_get_bytes_left(&s->g) >= 8) {
+ atom_size = bytestream2_get_be32u(&s->g);
+ atom = bytestream2_get_be32u(&s->g);
+ if (atom == JP2_CODESTREAM) {
+ found_codestream = 1;
+ } else {
+ if (bytestream2_get_bytes_left(&s->g) < atom_size - 8)
+ return 0;
+ bytestream2_skipu(&s->g, atom_size - 8);
+ search_range--;
+ }
+ }
+
+ if (found_codestream)
+ return 1;
+ return 0;
+}
+
+static int decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ AVPacket *avpkt)
+{
+ J2kDecoderContext *s = avctx->priv_data;
+ AVFrame *picture = data;
+ int tileno, ret;
+
+ bytestream2_init(&s->g, avpkt->data, avpkt->size);
+ s->curtileno = -1;
+
+ if (bytestream2_get_bytes_left(&s->g) < 2) {
+ ret = AVERROR(EINVAL);
+ goto err_out;
+ }
+
+ // check if the image is in jp2 format
+ if (bytestream2_get_bytes_left(&s->g) >= 12 &&
+ (bytestream2_get_be32u(&s->g) == 12) &&
+ (bytestream2_get_be32u(&s->g) == JP2_SIG_TYPE) &&
+ (bytestream2_get_be32u(&s->g) == JP2_SIG_VALUE)) {
+ if(!jp2_find_codestream(s)) {
+ av_log(avctx, AV_LOG_ERROR, "couldn't find jpeg2k codestream atom\n");
+ ret = -1;
+ goto err_out;
+ }
+ } else {
+ bytestream2_seek(&s->g, 0, SEEK_SET);
+ }
+
+ if (bytestream2_get_be16u(&s->g) != J2K_SOC){
+ av_log(avctx, AV_LOG_ERROR, "SOC marker not present\n");
+ ret = -1;
+ goto err_out;
+ }
+ if (ret = decode_codestream(s))
+ goto err_out;
+
+ for (tileno = 0; tileno < s->numXtiles * s->numYtiles; tileno++)
+ if (ret = decode_tile(s, s->tile + tileno))
+ goto err_out;
+
+ cleanup(s);
+
+ *data_size = sizeof(AVPicture);
+ *picture = s->picture;
+
+ return bytestream2_tell(&s->g);
+
+err_out:
+ cleanup(s);
+ return ret;
+}
+
+static av_cold int j2kdec_init(AVCodecContext *avctx)
+{
+ J2kDecoderContext *s = avctx->priv_data;
+
+ s->avctx = avctx;
+ avcodec_get_frame_defaults((AVFrame*)&s->picture);
+ avctx->coded_frame = (AVFrame*)&s->picture;
+
+ ff_j2k_init_tier1_luts();
+
+ return 0;
+}
+
+static av_cold int decode_end(AVCodecContext *avctx)
+{
+ J2kDecoderContext *s = avctx->priv_data;
+
+ if (s->picture.data[0])
+ avctx->release_buffer(avctx, &s->picture);
+
+ return 0;
+}
+
+AVCodec ff_jpeg2000_decoder = {
+ .name = "j2k",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_JPEG2000,
+ .priv_data_size = sizeof(J2kDecoderContext),
+ .init = j2kdec_init,
+ .close = decode_end,
+ .decode = decode_frame,
+ .capabilities = CODEC_CAP_EXPERIMENTAL,
+ .long_name = NULL_IF_CONFIG_SMALL("JPEG 2000"),
+};
if (ctx->pic.data[0])
avctx->release_buffer(avctx, &ctx->pic);
- ctx->pic.reference = 1;
+ ctx->pic.reference = 3;
ctx->pic.buffer_hints = FF_BUFFER_HINTS_VALID;
- if ((ret = avctx->get_buffer(avctx, &ctx->pic)) < 0) {
- if (ff_get_buffer(avctx, &ctx->pic) < 0) {
++ if ((ret = ff_get_buffer(avctx, &ctx->pic)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ return ret;
}
header = bytestream2_get_byte(&ctx->g);
--- /dev/null
- err = c->get_buffer(c, &celt->frame);
+/*
+ * Xiph CELT decoder using libcelt
+ * Copyright (c) 2011 Nicolas George
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <celt/celt.h>
+#include <celt/celt_header.h>
+#include "avcodec.h"
+#include "libavutil/intreadwrite.h"
+
+struct libcelt_context {
+ CELTMode *mode;
+ CELTDecoder *dec;
+ AVFrame frame;
+ int discard;
+};
+
+static int ff_celt_error_to_averror(int err)
+{
+ switch (err) {
+ case CELT_BAD_ARG: return AVERROR(EINVAL);
+#ifdef CELT_BUFFER_TOO_SMALL
+ case CELT_BUFFER_TOO_SMALL: return AVERROR(ENOBUFS);
+#endif
+ case CELT_INTERNAL_ERROR: return AVERROR(EFAULT);
+ case CELT_CORRUPTED_DATA: return AVERROR_INVALIDDATA;
+ case CELT_UNIMPLEMENTED: return AVERROR(ENOSYS);
+#ifdef ENOTRECOVERABLE
+ case CELT_INVALID_STATE: return AVERROR(ENOTRECOVERABLE);
+#endif
+ case CELT_ALLOC_FAIL: return AVERROR(ENOMEM);
+ default: return AVERROR(EINVAL);
+ }
+}
+
+static int ff_celt_bitstream_version_hack(CELTMode *mode)
+{
+ CELTHeader header = { .version_id = 0 };
+ celt_header_init(&header, mode, 960, 2);
+ return header.version_id;
+}
+
+static av_cold int libcelt_dec_init(AVCodecContext *c)
+{
+ struct libcelt_context *celt = c->priv_data;
+ int err;
+
+ if (!c->channels || !c->frame_size ||
+ c->frame_size > INT_MAX / sizeof(int16_t) / c->channels)
+ return AVERROR(EINVAL);
+ celt->mode = celt_mode_create(c->sample_rate, c->frame_size, &err);
+ if (!celt->mode)
+ return ff_celt_error_to_averror(err);
+ celt->dec = celt_decoder_create_custom(celt->mode, c->channels, &err);
+ if (!celt->dec) {
+ celt_mode_destroy(celt->mode);
+ return ff_celt_error_to_averror(err);
+ }
+ if (c->extradata_size >= 4) {
+ celt->discard = AV_RL32(c->extradata);
+ if (celt->discard < 0 || celt->discard >= c->frame_size) {
+ av_log(c, AV_LOG_WARNING,
+ "Invalid overlap (%d), ignored.\n", celt->discard);
+ celt->discard = 0;
+ }
+ }
+ if (c->extradata_size >= 8) {
+ unsigned version = AV_RL32(c->extradata + 4);
+ unsigned lib_version = ff_celt_bitstream_version_hack(celt->mode);
+ if (version != lib_version)
+ av_log(c, AV_LOG_WARNING,
+ "CELT bitstream version 0x%x may be "
+ "improperly decoded by libcelt for version 0x%x.\n",
+ version, lib_version);
+ }
+ c->sample_fmt = AV_SAMPLE_FMT_S16;
+ avcodec_get_frame_defaults(&celt->frame);
+ c->coded_frame = &celt->frame;
+ return 0;
+}
+
+static av_cold int libcelt_dec_close(AVCodecContext *c)
+{
+ struct libcelt_context *celt = c->priv_data;
+
+ celt_decoder_destroy(celt->dec);
+ celt_mode_destroy(celt->mode);
+ return 0;
+}
+
+static int libcelt_dec_decode(AVCodecContext *c, void *frame,
+ int *got_frame_ptr, AVPacket *pkt)
+{
+ struct libcelt_context *celt = c->priv_data;
+ int err;
+ int16_t *pcm;
+
+ celt->frame.nb_samples = c->frame_size;
++ err = ff_get_buffer(c, &celt->frame);
+ if (err < 0) {
+ av_log(c, AV_LOG_ERROR, "get_buffer() failed\n");
+ return err;
+ }
+ pcm = (int16_t *)celt->frame.data[0];
+ err = celt_decode(celt->dec, pkt->data, pkt->size, pcm, c->frame_size);
+ if (err < 0)
+ return ff_celt_error_to_averror(err);
+ if (celt->discard) {
+ celt->frame.nb_samples -= celt->discard;
+ memmove(pcm, pcm + celt->discard * c->channels,
+ celt->frame.nb_samples * c->channels * sizeof(int16_t));
+ celt->discard = 0;
+ }
+ *got_frame_ptr = 1;
+ *(AVFrame *)frame = celt->frame;
+ return pkt->size;
+}
+
+AVCodec ff_libcelt_decoder = {
+ .name = "libcelt",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_CELT,
+ .priv_data_size = sizeof(struct libcelt_context),
+ .init = libcelt_dec_init,
+ .close = libcelt_dec_close,
+ .decode = libcelt_dec_decode,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Xiph CELT decoder using libcelt"),
+};
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "avcodec.h"
+ #include "internal.h"
#include "libschroedinger.h"
-#undef NDEBUG
-#include <assert.h>
-
-
#include <schroedinger/schro.h>
#include <schroedinger/schrodebug.h>
#include <schroedinger/schrovideoformat.h>
--- /dev/null
- ret = avctx->get_buffer(avctx, frame->vframe);
+/*
+ * Interface to the Android Stagefright library for
+ * H/W accelerated H.264 decoding
+ *
+ * Copyright (C) 2011 Mohamed Naufal
+ * Copyright (C) 2011 Martin Storsjö
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <binder/ProcessState.h>
+#include <media/stagefright/MetaData.h>
+#include <media/stagefright/MediaBufferGroup.h>
+#include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/OMXClient.h>
+#include <media/stagefright/OMXCodec.h>
+#include <utils/List.h>
+#include <new>
+#include <map>
+
+extern "C" {
+#include "avcodec.h"
+#include "libavutil/imgutils.h"
+}
+
+#define OMX_QCOM_COLOR_FormatYVU420SemiPlanar 0x7FA30C00
+
+using namespace android;
+
+struct Frame {
+ status_t status;
+ size_t size;
+ int64_t time;
+ int key;
+ uint8_t *buffer;
+ AVFrame *vframe;
+};
+
+struct TimeStamp {
+ int64_t pts;
+ int64_t reordered_opaque;
+};
+
+class CustomSource;
+
+struct StagefrightContext {
+ AVCodecContext *avctx;
+ AVBitStreamFilterContext *bsfc;
+ uint8_t* orig_extradata;
+ int orig_extradata_size;
+ sp<MediaSource> *source;
+ List<Frame*> *in_queue, *out_queue;
+ pthread_mutex_t in_mutex, out_mutex;
+ pthread_cond_t condition;
+ pthread_t decode_thread_id;
+
+ Frame *end_frame;
+ bool source_done;
+ volatile sig_atomic_t thread_started, thread_exited, stop_decode;
+
+ AVFrame *prev_frame;
+ std::map<int64_t, TimeStamp> *ts_map;
+ int64_t frame_index;
+
+ uint8_t *dummy_buf;
+ int dummy_bufsize;
+
+ OMXClient *client;
+ sp<MediaSource> *decoder;
+ const char *decoder_component;
+};
+
+class CustomSource : public MediaSource {
+public:
+ CustomSource(AVCodecContext *avctx, sp<MetaData> meta) {
+ s = (StagefrightContext*)avctx->priv_data;
+ source_meta = meta;
+ frame_size = (avctx->width * avctx->height * 3) / 2;
+ buf_group.add_buffer(new MediaBuffer(frame_size));
+ }
+
+ virtual sp<MetaData> getFormat() {
+ return source_meta;
+ }
+
+ virtual status_t start(MetaData *params) {
+ return OK;
+ }
+
+ virtual status_t stop() {
+ return OK;
+ }
+
+ virtual status_t read(MediaBuffer **buffer,
+ const MediaSource::ReadOptions *options) {
+ Frame *frame;
+ status_t ret;
+
+ if (s->thread_exited)
+ return ERROR_END_OF_STREAM;
+ pthread_mutex_lock(&s->in_mutex);
+
+ while (s->in_queue->empty())
+ pthread_cond_wait(&s->condition, &s->in_mutex);
+
+ frame = *s->in_queue->begin();
+ ret = frame->status;
+
+ if (ret == OK) {
+ ret = buf_group.acquire_buffer(buffer);
+ if (ret == OK) {
+ memcpy((*buffer)->data(), frame->buffer, frame->size);
+ (*buffer)->set_range(0, frame->size);
+ (*buffer)->meta_data()->clear();
+ (*buffer)->meta_data()->setInt32(kKeyIsSyncFrame,frame->key);
+ (*buffer)->meta_data()->setInt64(kKeyTime, frame->time);
+ } else {
+ av_log(s->avctx, AV_LOG_ERROR, "Failed to acquire MediaBuffer\n");
+ }
+ av_freep(&frame->buffer);
+ }
+
+ s->in_queue->erase(s->in_queue->begin());
+ pthread_mutex_unlock(&s->in_mutex);
+
+ av_freep(&frame);
+ return ret;
+ }
+
+private:
+ MediaBufferGroup buf_group;
+ sp<MetaData> source_meta;
+ StagefrightContext *s;
+ int frame_size;
+};
+
+void* decode_thread(void *arg)
+{
+ AVCodecContext *avctx = (AVCodecContext*)arg;
+ StagefrightContext *s = (StagefrightContext*)avctx->priv_data;
+ const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(avctx->pix_fmt);
+ Frame* frame;
+ MediaBuffer *buffer;
+ int32_t w, h;
+ int decode_done = 0;
+ int ret;
+ int src_linesize[3];
+ const uint8_t *src_data[3];
+ int64_t out_frame_index = 0;
+
+ do {
+ buffer = NULL;
+ frame = (Frame*)av_mallocz(sizeof(Frame));
+ if (!frame) {
+ frame = s->end_frame;
+ frame->status = AVERROR(ENOMEM);
+ decode_done = 1;
+ s->end_frame = NULL;
+ goto push_frame;
+ }
+ frame->status = (*s->decoder)->read(&buffer);
+ if (frame->status == OK) {
+ sp<MetaData> outFormat = (*s->decoder)->getFormat();
+ outFormat->findInt32(kKeyWidth , &w);
+ outFormat->findInt32(kKeyHeight, &h);
+ frame->vframe = (AVFrame*)av_mallocz(sizeof(AVFrame));
+ if (!frame->vframe) {
+ frame->status = AVERROR(ENOMEM);
+ decode_done = 1;
+ buffer->release();
+ goto push_frame;
+ }
++ ret = ff_get_buffer(avctx, frame->vframe);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ frame->status = ret;
+ decode_done = 1;
+ buffer->release();
+ goto push_frame;
+ }
+
+ // The OMX.SEC decoder doesn't signal the modified width/height
+ if (s->decoder_component && !strncmp(s->decoder_component, "OMX.SEC", 7) &&
+ (w & 15 || h & 15)) {
+ if (((w + 15)&~15) * ((h + 15)&~15) * 3/2 == buffer->range_length()) {
+ w = (w + 15)&~15;
+ h = (h + 15)&~15;
+ }
+ }
+
+ if (!avctx->width || !avctx->height || avctx->width > w || avctx->height > h) {
+ avctx->width = w;
+ avctx->height = h;
+ }
+
+ src_linesize[0] = av_image_get_linesize(avctx->pix_fmt, w, 0);
+ src_linesize[1] = av_image_get_linesize(avctx->pix_fmt, w, 1);
+ src_linesize[2] = av_image_get_linesize(avctx->pix_fmt, w, 2);
+
+ src_data[0] = (uint8_t*)buffer->data();
+ src_data[1] = src_data[0] + src_linesize[0] * h;
+ src_data[2] = src_data[1] + src_linesize[1] * -(-h>>pix_desc->log2_chroma_h);
+ av_image_copy(frame->vframe->data, frame->vframe->linesize,
+ src_data, src_linesize,
+ avctx->pix_fmt, avctx->width, avctx->height);
+
+ buffer->meta_data()->findInt64(kKeyTime, &out_frame_index);
+ if (out_frame_index && s->ts_map->count(out_frame_index) > 0) {
+ frame->vframe->pts = (*s->ts_map)[out_frame_index].pts;
+ frame->vframe->reordered_opaque = (*s->ts_map)[out_frame_index].reordered_opaque;
+ s->ts_map->erase(out_frame_index);
+ }
+ buffer->release();
+ } else if (frame->status == INFO_FORMAT_CHANGED) {
+ if (buffer)
+ buffer->release();
+ av_free(frame);
+ continue;
+ } else {
+ decode_done = 1;
+ }
+push_frame:
+ while (true) {
+ pthread_mutex_lock(&s->out_mutex);
+ if (s->out_queue->size() >= 10) {
+ pthread_mutex_unlock(&s->out_mutex);
+ usleep(10000);
+ continue;
+ }
+ break;
+ }
+ s->out_queue->push_back(frame);
+ pthread_mutex_unlock(&s->out_mutex);
+ } while (!decode_done && !s->stop_decode);
+
+ s->thread_exited = true;
+
+ return 0;
+}
+
+static av_cold int Stagefright_init(AVCodecContext *avctx)
+{
+ StagefrightContext *s = (StagefrightContext*)avctx->priv_data;
+ sp<MetaData> meta, outFormat;
+ int32_t colorFormat = 0;
+ int ret;
+
+ if (!avctx->extradata || !avctx->extradata_size || avctx->extradata[0] != 1)
+ return -1;
+
+ s->avctx = avctx;
+ s->bsfc = av_bitstream_filter_init("h264_mp4toannexb");
+ if (!s->bsfc) {
+ av_log(avctx, AV_LOG_ERROR, "Cannot open the h264_mp4toannexb BSF!\n");
+ return -1;
+ }
+
+ s->orig_extradata_size = avctx->extradata_size;
+ s->orig_extradata = (uint8_t*) av_mallocz(avctx->extradata_size +
+ FF_INPUT_BUFFER_PADDING_SIZE);
+ if (!s->orig_extradata) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ memcpy(s->orig_extradata, avctx->extradata, avctx->extradata_size);
+
+ meta = new MetaData;
+ if (meta == NULL) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
+ meta->setInt32(kKeyWidth, avctx->width);
+ meta->setInt32(kKeyHeight, avctx->height);
+ meta->setData(kKeyAVCC, kTypeAVCC, avctx->extradata, avctx->extradata_size);
+
+ android::ProcessState::self()->startThreadPool();
+
+ s->source = new sp<MediaSource>();
+ *s->source = new CustomSource(avctx, meta);
+ s->in_queue = new List<Frame*>;
+ s->out_queue = new List<Frame*>;
+ s->ts_map = new std::map<int64_t, TimeStamp>;
+ s->client = new OMXClient;
+ s->end_frame = (Frame*)av_mallocz(sizeof(Frame));
+ if (s->source == NULL || !s->in_queue || !s->out_queue || !s->client ||
+ !s->ts_map || !s->end_frame) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ if (s->client->connect() != OK) {
+ av_log(avctx, AV_LOG_ERROR, "Cannot connect OMX client\n");
+ ret = -1;
+ goto fail;
+ }
+
+ s->decoder = new sp<MediaSource>();
+ *s->decoder = OMXCodec::Create(s->client->interface(), meta,
+ false, *s->source, NULL,
+ OMXCodec::kClientNeedsFramebuffer);
+ if ((*s->decoder)->start() != OK) {
+ av_log(avctx, AV_LOG_ERROR, "Cannot start decoder\n");
+ ret = -1;
+ s->client->disconnect();
+ goto fail;
+ }
+
+ outFormat = (*s->decoder)->getFormat();
+ outFormat->findInt32(kKeyColorFormat, &colorFormat);
+ if (colorFormat == OMX_QCOM_COLOR_FormatYVU420SemiPlanar ||
+ colorFormat == OMX_COLOR_FormatYUV420SemiPlanar)
+ avctx->pix_fmt = AV_PIX_FMT_NV21;
+ else if (colorFormat == OMX_COLOR_FormatYCbYCr)
+ avctx->pix_fmt = AV_PIX_FMT_YUYV422;
+ else if (colorFormat == OMX_COLOR_FormatCbYCrY)
+ avctx->pix_fmt = AV_PIX_FMT_UYVY422;
+ else
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P;
+
+ outFormat->findCString(kKeyDecoderComponent, &s->decoder_component);
+ if (s->decoder_component)
+ s->decoder_component = av_strdup(s->decoder_component);
+
+ pthread_mutex_init(&s->in_mutex, NULL);
+ pthread_mutex_init(&s->out_mutex, NULL);
+ pthread_cond_init(&s->condition, NULL);
+ return 0;
+
+fail:
+ av_bitstream_filter_close(s->bsfc);
+ av_freep(&s->orig_extradata);
+ av_freep(&s->end_frame);
+ delete s->in_queue;
+ delete s->out_queue;
+ delete s->ts_map;
+ delete s->client;
+ return ret;
+}
+
+static int Stagefright_decode_frame(AVCodecContext *avctx, void *data,
+ int *data_size, AVPacket *avpkt)
+{
+ StagefrightContext *s = (StagefrightContext*)avctx->priv_data;
+ Frame *frame;
+ status_t status;
+ int orig_size = avpkt->size;
+ AVPacket pkt = *avpkt;
+ AVFrame *ret_frame;
+
+ if (!s->thread_started) {
+ pthread_create(&s->decode_thread_id, NULL, &decode_thread, avctx);
+ s->thread_started = true;
+ }
+
+ if (avpkt && avpkt->data) {
+ av_bitstream_filter_filter(s->bsfc, avctx, NULL, &pkt.data, &pkt.size,
+ avpkt->data, avpkt->size, avpkt->flags & AV_PKT_FLAG_KEY);
+ avpkt = &pkt;
+ }
+
+ if (!s->source_done) {
+ if(!s->dummy_buf) {
+ s->dummy_buf = (uint8_t*)av_malloc(avpkt->size);
+ if (!s->dummy_buf)
+ return AVERROR(ENOMEM);
+ s->dummy_bufsize = avpkt->size;
+ memcpy(s->dummy_buf, avpkt->data, avpkt->size);
+ }
+
+ frame = (Frame*)av_mallocz(sizeof(Frame));
+ if (avpkt->data) {
+ frame->status = OK;
+ frame->size = avpkt->size;
+ frame->key = avpkt->flags & AV_PKT_FLAG_KEY ? 1 : 0;
+ frame->buffer = (uint8_t*)av_malloc(avpkt->size);
+ if (!frame->buffer) {
+ av_freep(&frame);
+ return AVERROR(ENOMEM);
+ }
+ uint8_t *ptr = avpkt->data;
+ // The OMX.SEC decoder fails without this.
+ if (avpkt->size == orig_size + avctx->extradata_size) {
+ ptr += avctx->extradata_size;
+ frame->size = orig_size;
+ }
+ memcpy(frame->buffer, ptr, orig_size);
+ if (avpkt == &pkt)
+ av_free(avpkt->data);
+
+ frame->time = ++s->frame_index;
+ (*s->ts_map)[s->frame_index].pts = avpkt->pts;
+ (*s->ts_map)[s->frame_index].reordered_opaque = avctx->reordered_opaque;
+ } else {
+ frame->status = ERROR_END_OF_STREAM;
+ s->source_done = true;
+ }
+
+ while (true) {
+ if (s->thread_exited) {
+ s->source_done = true;
+ break;
+ }
+ pthread_mutex_lock(&s->in_mutex);
+ if (s->in_queue->size() >= 10) {
+ pthread_mutex_unlock(&s->in_mutex);
+ usleep(10000);
+ continue;
+ }
+ s->in_queue->push_back(frame);
+ pthread_cond_signal(&s->condition);
+ pthread_mutex_unlock(&s->in_mutex);
+ break;
+ }
+ }
+ while (true) {
+ pthread_mutex_lock(&s->out_mutex);
+ if (!s->out_queue->empty()) break;
+ pthread_mutex_unlock(&s->out_mutex);
+ if (s->source_done) {
+ usleep(10000);
+ continue;
+ } else {
+ return orig_size;
+ }
+ }
+
+ frame = *s->out_queue->begin();
+ s->out_queue->erase(s->out_queue->begin());
+ pthread_mutex_unlock(&s->out_mutex);
+
+ ret_frame = frame->vframe;
+ status = frame->status;
+ av_freep(&frame);
+
+ if (status == ERROR_END_OF_STREAM)
+ return 0;
+ if (status != OK) {
+ if (status == AVERROR(ENOMEM))
+ return status;
+ av_log(avctx, AV_LOG_ERROR, "Decode failed: %x\n", status);
+ return -1;
+ }
+
+ if (s->prev_frame) {
+ avctx->release_buffer(avctx, s->prev_frame);
+ av_freep(&s->prev_frame);
+ }
+ s->prev_frame = ret_frame;
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame*)data = *ret_frame;
+ return orig_size;
+}
+
+static av_cold int Stagefright_close(AVCodecContext *avctx)
+{
+ StagefrightContext *s = (StagefrightContext*)avctx->priv_data;
+ Frame *frame;
+
+ if (s->thread_started) {
+ if (!s->thread_exited) {
+ s->stop_decode = 1;
+
+ // Make sure decode_thread() doesn't get stuck
+ pthread_mutex_lock(&s->out_mutex);
+ while (!s->out_queue->empty()) {
+ frame = *s->out_queue->begin();
+ s->out_queue->erase(s->out_queue->begin());
+ if (frame->vframe) {
+ avctx->release_buffer(avctx, frame->vframe);
+ av_freep(&frame->vframe);
+ }
+ av_freep(&frame);
+ }
+ pthread_mutex_unlock(&s->out_mutex);
+
+ // Feed a dummy frame prior to signalling EOF.
+ // This is required to terminate the decoder(OMX.SEC)
+ // when only one frame is read during stream info detection.
+ if (s->dummy_buf && (frame = (Frame*)av_mallocz(sizeof(Frame)))) {
+ frame->status = OK;
+ frame->size = s->dummy_bufsize;
+ frame->key = 1;
+ frame->buffer = s->dummy_buf;
+ pthread_mutex_lock(&s->in_mutex);
+ s->in_queue->push_back(frame);
+ pthread_cond_signal(&s->condition);
+ pthread_mutex_unlock(&s->in_mutex);
+ s->dummy_buf = NULL;
+ }
+
+ pthread_mutex_lock(&s->in_mutex);
+ s->end_frame->status = ERROR_END_OF_STREAM;
+ s->in_queue->push_back(s->end_frame);
+ pthread_cond_signal(&s->condition);
+ pthread_mutex_unlock(&s->in_mutex);
+ s->end_frame = NULL;
+ }
+
+ pthread_join(s->decode_thread_id, NULL);
+
+ if (s->prev_frame) {
+ avctx->release_buffer(avctx, s->prev_frame);
+ av_freep(&s->prev_frame);
+ }
+
+ s->thread_started = false;
+ }
+
+ while (!s->in_queue->empty()) {
+ frame = *s->in_queue->begin();
+ s->in_queue->erase(s->in_queue->begin());
+ if (frame->size)
+ av_freep(&frame->buffer);
+ av_freep(&frame);
+ }
+
+ while (!s->out_queue->empty()) {
+ frame = *s->out_queue->begin();
+ s->out_queue->erase(s->out_queue->begin());
+ if (frame->vframe) {
+ avctx->release_buffer(avctx, frame->vframe);
+ av_freep(&frame->vframe);
+ }
+ av_freep(&frame);
+ }
+
+ (*s->decoder)->stop();
+ s->client->disconnect();
+
+ if (s->decoder_component)
+ av_freep(&s->decoder_component);
+ av_freep(&s->dummy_buf);
+ av_freep(&s->end_frame);
+
+ // Reset the extradata back to the original mp4 format, so that
+ // the next invocation (both when decoding and when called from
+ // av_find_stream_info) get the original mp4 format extradata.
+ av_freep(&avctx->extradata);
+ avctx->extradata = s->orig_extradata;
+ avctx->extradata_size = s->orig_extradata_size;
+
+ delete s->in_queue;
+ delete s->out_queue;
+ delete s->ts_map;
+ delete s->client;
+ delete s->decoder;
+ delete s->source;
+
+ pthread_mutex_destroy(&s->in_mutex);
+ pthread_mutex_destroy(&s->out_mutex);
+ pthread_cond_destroy(&s->condition);
+ av_bitstream_filter_close(s->bsfc);
+ return 0;
+}
+
+AVCodec ff_libstagefright_h264_decoder = {
+ "libstagefright_h264",
+ NULL_IF_CONFIG_SMALL("libstagefright H.264"),
+ AVMEDIA_TYPE_VIDEO,
+ AV_CODEC_ID_H264,
+ CODEC_CAP_DELAY,
+ NULL, //supported_framerates
+ NULL, //pix_fmts
+ NULL, //supported_samplerates
+ NULL, //sample_fmts
+ NULL, //channel_layouts
+ 0, //max_lowres
+ NULL, //priv_class
+ NULL, //profiles
+ sizeof(StagefrightContext),
+ NULL, //next
+ NULL, //init_thread_copy
+ NULL, //update_thread_context
+ NULL, //defaults
+ NULL, //init_static_data
+ Stagefright_init,
+ NULL, //encode
+ NULL, //encode2
+ Stagefright_decode_frame,
+ Stagefright_close,
+};
--- /dev/null
- if ((ret = avccontext->get_buffer(avccontext, &context->frame)) < 0) {
+/*
+ * Copyright (c) 2002 Mark Hills <mark@pogo.org.uk>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <vorbis/vorbisenc.h>
+
+#include "avcodec.h"
+#include "bytestream.h"
++#include "internal.h"
+
+typedef struct OggVorbisDecContext {
+ AVFrame frame;
+ vorbis_info vi; /**< vorbis_info used during init */
+ vorbis_dsp_state vd; /**< DSP state used for analysis */
+ vorbis_block vb; /**< vorbis_block used for analysis */
+ vorbis_comment vc; /**< VorbisComment info */
+ ogg_packet op; /**< ogg packet */
+} OggVorbisDecContext;
+
+static int oggvorbis_decode_init(AVCodecContext *avccontext) {
+ OggVorbisDecContext *context = avccontext->priv_data ;
+ uint8_t *p= avccontext->extradata;
+ int i, hsizes[3];
+ unsigned char *headers[3], *extradata = avccontext->extradata;
+
+ vorbis_info_init(&context->vi) ;
+ vorbis_comment_init(&context->vc) ;
+
+ if(! avccontext->extradata_size || ! p) {
+ av_log(avccontext, AV_LOG_ERROR, "vorbis extradata absent\n");
+ return -1;
+ }
+
+ if(p[0] == 0 && p[1] == 30) {
+ for(i = 0; i < 3; i++){
+ hsizes[i] = bytestream_get_be16((const uint8_t **)&p);
+ headers[i] = p;
+ p += hsizes[i];
+ }
+ } else if(*p == 2) {
+ unsigned int offset = 1;
+ p++;
+ for(i=0; i<2; i++) {
+ hsizes[i] = 0;
+ while((*p == 0xFF) && (offset < avccontext->extradata_size)) {
+ hsizes[i] += 0xFF;
+ offset++;
+ p++;
+ }
+ if(offset >= avccontext->extradata_size - 1) {
+ av_log(avccontext, AV_LOG_ERROR,
+ "vorbis header sizes damaged\n");
+ return -1;
+ }
+ hsizes[i] += *p;
+ offset++;
+ p++;
+ }
+ hsizes[2] = avccontext->extradata_size - hsizes[0]-hsizes[1]-offset;
+#if 0
+ av_log(avccontext, AV_LOG_DEBUG,
+ "vorbis header sizes: %d, %d, %d, / extradata_len is %d \n",
+ hsizes[0], hsizes[1], hsizes[2], avccontext->extradata_size);
+#endif
+ headers[0] = extradata + offset;
+ headers[1] = extradata + offset + hsizes[0];
+ headers[2] = extradata + offset + hsizes[0] + hsizes[1];
+ } else {
+ av_log(avccontext, AV_LOG_ERROR,
+ "vorbis initial header len is wrong: %d\n", *p);
+ return -1;
+ }
+
+ for(i=0; i<3; i++){
+ context->op.b_o_s= i==0;
+ context->op.bytes = hsizes[i];
+ context->op.packet = headers[i];
+ if(vorbis_synthesis_headerin(&context->vi, &context->vc, &context->op)<0){
+ av_log(avccontext, AV_LOG_ERROR, "%d. vorbis header damaged\n", i+1);
+ return -1;
+ }
+ }
+
+ avccontext->channels = context->vi.channels;
+ avccontext->sample_rate = context->vi.rate;
+ avccontext->time_base= (AVRational){1, avccontext->sample_rate};
+
+ vorbis_synthesis_init(&context->vd, &context->vi);
+ vorbis_block_init(&context->vd, &context->vb);
+
+ return 0 ;
+}
+
+
+static inline int conv(int samples, float **pcm, char *buf, int channels) {
+ int i, j;
+ ogg_int16_t *ptr, *data = (ogg_int16_t*)buf ;
+ float *mono ;
+
+ for(i = 0 ; i < channels ; i++){
+ ptr = &data[i];
+ mono = pcm[i] ;
+
+ for(j = 0 ; j < samples ; j++) {
+ *ptr = av_clip_int16(mono[j] * 32767.f);
+ ptr += channels;
+ }
+ }
+
+ return 0 ;
+}
+
+static int oggvorbis_decode_frame(AVCodecContext *avccontext, void *data,
+ int *got_frame_ptr, AVPacket *avpkt)
+{
+ OggVorbisDecContext *context = avccontext->priv_data ;
+ float **pcm ;
+ ogg_packet *op= &context->op;
+ int samples, total_samples, total_bytes;
+ int ret;
+ int16_t *output;
+
+ if(!avpkt->size){
+ //FIXME flush
+ return 0;
+ }
+
+ context->frame.nb_samples = 8192*4;
++ if ((ret = ff_get_buffer(avccontext, &context->frame)) < 0) {
+ av_log(avccontext, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+ output = (int16_t *)context->frame.data[0];
+
+
+ op->packet = avpkt->data;
+ op->bytes = avpkt->size;
+
+// av_log(avccontext, AV_LOG_DEBUG, "%d %d %d %"PRId64" %"PRId64" %d %d\n", op->bytes, op->b_o_s, op->e_o_s, op->granulepos, op->packetno, buf_size, context->vi.rate);
+
+/* for(i=0; i<op->bytes; i++)
+ av_log(avccontext, AV_LOG_DEBUG, "%02X ", op->packet[i]);
+ av_log(avccontext, AV_LOG_DEBUG, "\n");*/
+
+ if(vorbis_synthesis(&context->vb, op) == 0)
+ vorbis_synthesis_blockin(&context->vd, &context->vb) ;
+
+ total_samples = 0 ;
+ total_bytes = 0 ;
+
+ while((samples = vorbis_synthesis_pcmout(&context->vd, &pcm)) > 0) {
+ conv(samples, pcm, (char*)output + total_bytes, context->vi.channels) ;
+ total_bytes += samples * 2 * context->vi.channels ;
+ total_samples += samples ;
+ vorbis_synthesis_read(&context->vd, samples) ;
+ }
+
+ context->frame.nb_samples = total_samples;
+ *got_frame_ptr = 1;
+ *(AVFrame *)data = context->frame;
+ return avpkt->size;
+}
+
+
+static int oggvorbis_decode_close(AVCodecContext *avccontext) {
+ OggVorbisDecContext *context = avccontext->priv_data ;
+
+ vorbis_info_clear(&context->vi) ;
+ vorbis_comment_clear(&context->vc) ;
+
+ return 0 ;
+}
+
+
+AVCodec ff_libvorbis_decoder = {
+ .name = "libvorbis",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_VORBIS,
+ .priv_data_size = sizeof(OggVorbisDecContext),
+ .init = oggvorbis_decode_init,
+ .decode = oggvorbis_decode_frame,
+ .close = oggvorbis_decode_close,
+ .capabilities = CODEC_CAP_DELAY,
+ .long_name = NULL_IF_CONFIG_SMALL("libvorbis"),
+};
buf_size -= 4;
/* get output buffer */
- c->frame.nb_samples = last_frame ? c->lastframelen : MPC_FRAME_SIZE;
+ c->frame.nb_samples = MPC_FRAME_SIZE;
- if ((ret = avctx->get_buffer(avctx, &c->frame)) < 0) {
+ if ((ret = ff_get_buffer(avctx, &c->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
* MPEG Audio decoder
*/
+#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
+#include "libavutil/libm.h"
#include "avcodec.h"
#include "get_bits.h"
+ #include "internal.h"
#include "mathops.h"
#include "mpegaudiodsp.h"
#include "dsputil.h"
int fr, ch, ret;
/* get output buffer */
- s->frame->nb_samples = MPA_FRAME_SIZE;
+ s->frame->nb_samples = s->frames * MPA_FRAME_SIZE;
- if ((ret = avctx->get_buffer(avctx, s->frame)) < 0) {
+ if ((ret = ff_get_buffer(avctx, s->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
--- /dev/null
- if ((ret = avctx->get_buffer(avctx, &c->frame)) < 0)
+/*
+ * Packed Animation File video and audio decoder
+ * Copyright (c) 2012 Paul B Mahol
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/intreadwrite.h"
+#include "libavcodec/dsputil.h"
+#include "libavcodec/paf.h"
+#include "bytestream.h"
+#include "avcodec.h"
++#include "internal.h"
++
+
+static const uint8_t block_sequences[16][8] =
+{
+ { 0, 0, 0, 0, 0, 0, 0, 0 },
+ { 2, 0, 0, 0, 0, 0, 0, 0 },
+ { 5, 7, 0, 0, 0, 0, 0, 0 },
+ { 5, 0, 0, 0, 0, 0, 0, 0 },
+ { 6, 0, 0, 0, 0, 0, 0, 0 },
+ { 5, 7, 5, 7, 0, 0, 0, 0 },
+ { 5, 7, 5, 0, 0, 0, 0, 0 },
+ { 5, 7, 6, 0, 0, 0, 0, 0 },
+ { 5, 5, 0, 0, 0, 0, 0, 0 },
+ { 3, 0, 0, 0, 0, 0, 0, 0 },
+ { 6, 6, 0, 0, 0, 0, 0, 0 },
+ { 2, 4, 0, 0, 0, 0, 0, 0 },
+ { 2, 4, 5, 7, 0, 0, 0, 0 },
+ { 2, 4, 5, 0, 0, 0, 0, 0 },
+ { 2, 4, 6, 0, 0, 0, 0, 0 },
+ { 2, 4, 5, 7, 5, 7, 0, 0 }
+};
+
+typedef struct PAFVideoDecContext {
+ AVFrame pic;
+ GetByteContext gb;
+
+ int current_frame;
+ uint8_t *frame[4];
+ int frame_size;
+ int video_size;
+
+ uint8_t *opcodes;
+} PAFVideoDecContext;
+
+static av_cold int paf_vid_init(AVCodecContext *avctx)
+{
+ PAFVideoDecContext *c = avctx->priv_data;
+ int i;
+
+ if (avctx->height & 3 || avctx->width & 3) {
+ av_log(avctx, AV_LOG_ERROR, "width and height must be multiplies of 4\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ avctx->pix_fmt = AV_PIX_FMT_PAL8;
+
+ avcodec_get_frame_defaults(&c->pic);
+ c->frame_size = FFALIGN(avctx->height, 256) * avctx->width;
+ c->video_size = avctx->height * avctx->width;
+ for (i = 0; i < 4; i++) {
+ c->frame[i] = av_mallocz(c->frame_size);
+ if (!c->frame[i])
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static int get_video_page_offset(AVCodecContext *avctx, uint8_t a, uint8_t b)
+{
+ int x, y;
+
+ x = b & 0x7F;
+ y = ((a & 0x3F) << 1) | (b >> 7 & 1);
+
+ return y * 2 * avctx->width + x * 2;
+}
+
+static void copy4h(AVCodecContext *avctx, uint8_t *dst)
+{
+ PAFVideoDecContext *c = avctx->priv_data;
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ bytestream2_get_buffer(&c->gb, dst, 4);
+ dst += avctx->width;
+ }
+}
+
+static void copy_color_mask(AVCodecContext *avctx, uint8_t mask, uint8_t *dst, uint8_t color)
+{
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ if ((mask >> 4) & (1 << (3 - i)))
+ dst[i] = color;
+ if ((mask & 15) & (1 << (3 - i)))
+ dst[avctx->width + i] = color;
+ }
+}
+
+static void copy_src_mask(AVCodecContext *avctx, uint8_t mask, uint8_t *dst, const uint8_t *src)
+{
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ if ((mask >> 4) & (1 << (3 - i)))
+ dst[i] = src[i];
+ if ((mask & 15) & (1 << (3 - i)))
+ dst[avctx->width + i] = src[avctx->width + i];
+ }
+}
+
+static int decode_0(AVCodecContext *avctx, uint8_t code, uint8_t *pkt)
+{
+ PAFVideoDecContext *c = avctx->priv_data;
+ uint32_t opcode_size, offset;
+ uint8_t *dst, *dend, mask = 0, color = 0, a, b, p;
+ const uint8_t *src, *send, *opcodes;
+ int i, j, x = 0;
+
+ i = bytestream2_get_byte(&c->gb);
+ if (i) {
+ if (code & 0x10) {
+ int align;
+
+ align = bytestream2_tell(&c->gb) & 3;
+ if (align)
+ bytestream2_skip(&c->gb, 4 - align);
+ }
+ do {
+ a = bytestream2_get_byte(&c->gb);
+ b = bytestream2_get_byte(&c->gb);
+ p = (a & 0xC0) >> 6;
+ dst = c->frame[p] + get_video_page_offset(avctx, a, b);
+ dend = c->frame[p] + c->frame_size;
+ offset = (b & 0x7F) * 2;
+ j = bytestream2_get_le16(&c->gb) + offset;
+
+ do {
+ offset++;
+ if (dst + 3 * avctx->width + 4 > dend)
+ return AVERROR_INVALIDDATA;
+ copy4h(avctx, dst);
+ if ((offset & 0x3F) == 0)
+ dst += avctx->width * 3;
+ dst += 4;
+ } while (offset < j);
+ } while (--i);
+ }
+
+ dst = c->frame[c->current_frame];
+ dend = c->frame[c->current_frame] + c->frame_size;
+ do {
+ a = bytestream2_get_byte(&c->gb);
+ b = bytestream2_get_byte(&c->gb);
+ p = (a & 0xC0) >> 6;
+ src = c->frame[p] + get_video_page_offset(avctx, a, b);
+ send = c->frame[p] + c->frame_size;
+ if ((src + 3 * avctx->width + 4 > send) ||
+ (dst + 3 * avctx->width + 4 > dend))
+ return AVERROR_INVALIDDATA;
+ copy_block4(dst, src, avctx->width, avctx->width, 4);
+ i++;
+ if ((i & 0x3F) == 0)
+ dst += avctx->width * 3;
+ dst += 4;
+ } while (i < c->video_size / 16);
+
+ opcode_size = bytestream2_get_le16(&c->gb);
+ bytestream2_skip(&c->gb, 2);
+
+ if (bytestream2_get_bytes_left(&c->gb) < opcode_size)
+ return AVERROR_INVALIDDATA;
+
+ opcodes = pkt + bytestream2_tell(&c->gb);
+ bytestream2_skipu(&c->gb, opcode_size);
+
+ dst = c->frame[c->current_frame];
+
+ for (i = 0; i < avctx->height; i += 4, dst += avctx->width * 3) {
+ for (j = 0; j < avctx->width; j += 4, dst += 4) {
+ int opcode, k = 0;
+
+ if (x > opcode_size)
+ return AVERROR_INVALIDDATA;
+ if (j & 4) {
+ opcode = opcodes[x] & 15;
+ x++;
+ } else {
+ opcode = opcodes[x] >> 4;
+ }
+
+ while (block_sequences[opcode][k]) {
+
+ offset = avctx->width * 2;
+ code = block_sequences[opcode][k++];
+
+ switch (code) {
+ case 2:
+ offset = 0;
+ case 3:
+ color = bytestream2_get_byte(&c->gb);
+ case 4:
+ mask = bytestream2_get_byte(&c->gb);
+ copy_color_mask(avctx, mask, dst + offset, color);
+ break;
+ case 5:
+ offset = 0;
+ case 6:
+ a = bytestream2_get_byte(&c->gb);
+ b = bytestream2_get_byte(&c->gb);
+ p = (a & 0xC0) >> 6;
+ src = c->frame[p] + get_video_page_offset(avctx, a, b);
+ send = c->frame[p] + c->frame_size;
+ case 7:
+ if (src + offset + avctx->width + 4 > send)
+ return AVERROR_INVALIDDATA;
+ mask = bytestream2_get_byte(&c->gb);
+ copy_src_mask(avctx, mask, dst + offset, src + offset);
+ break;
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int paf_vid_decode(AVCodecContext *avctx, void *data,
+ int *data_size, AVPacket *pkt)
+{
+ PAFVideoDecContext *c = avctx->priv_data;
+ uint8_t code, *dst, *src, *end;
+ int i, frame, ret;
+
+ c->pic.reference = 3;
+ if ((ret = avctx->reget_buffer(avctx, &c->pic)) < 0)
+ return ret;
+
+ bytestream2_init(&c->gb, pkt->data, pkt->size);
+
+ code = bytestream2_get_byte(&c->gb);
+ if (code & 0x20) {
+ for (i = 0; i < 4; i++)
+ memset(c->frame[i], 0, c->frame_size);
+
+ memset(c->pic.data[1], 0, AVPALETTE_SIZE);
+ c->current_frame = 0;
+ c->pic.key_frame = 1;
+ c->pic.pict_type = AV_PICTURE_TYPE_I;
+ } else {
+ c->pic.key_frame = 0;
+ c->pic.pict_type = AV_PICTURE_TYPE_P;
+ }
+
+ if (code & 0x40) {
+ uint32_t *out = (uint32_t *)c->pic.data[1];
+ int index, count;
+
+ index = bytestream2_get_byte(&c->gb);
+ count = bytestream2_get_byte(&c->gb) + 1;
+
+ if (index + count > 256)
+ return AVERROR_INVALIDDATA;
+ if (bytestream2_get_bytes_left(&c->gb) < 3*count)
+ return AVERROR_INVALIDDATA;
+
+ out += index;
+ for (i = 0; i < count; i++) {
+ unsigned r, g, b;
+
+ r = bytestream2_get_byteu(&c->gb);
+ r = r << 2 | r >> 4;
+ g = bytestream2_get_byteu(&c->gb);
+ g = g << 2 | g >> 4;
+ b = bytestream2_get_byteu(&c->gb);
+ b = b << 2 | b >> 4;
+ *out++ = 0xFFU << 24 | r << 16 | g << 8 | b;
+ }
+ c->pic.palette_has_changed = 1;
+ }
+
+ switch (code & 0x0F) {
+ case 0:
+ if ((ret = decode_0(avctx, code, pkt->data)) < 0)
+ return ret;
+ break;
+ case 1:
+ dst = c->frame[c->current_frame];
+ bytestream2_skip(&c->gb, 2);
+ if (bytestream2_get_bytes_left(&c->gb) < c->video_size)
+ return AVERROR_INVALIDDATA;
+ bytestream2_get_bufferu(&c->gb, dst, c->video_size);
+ break;
+ case 2:
+ frame = bytestream2_get_byte(&c->gb);
+ if (frame > 3)
+ return AVERROR_INVALIDDATA;
+ if (frame != c->current_frame)
+ memcpy(c->frame[c->current_frame], c->frame[frame], c->frame_size);
+ break;
+ case 4:
+ dst = c->frame[c->current_frame];
+ end = dst + c->video_size;
+
+ bytestream2_skip(&c->gb, 2);
+
+ while (dst < end) {
+ int8_t code;
+ int count;
+
+ if (bytestream2_get_bytes_left(&c->gb) < 2)
+ return AVERROR_INVALIDDATA;
+
+ code = bytestream2_get_byteu(&c->gb);
+ count = FFABS(code) + 1;
+
+ if (dst + count > end)
+ return AVERROR_INVALIDDATA;
+ if (code < 0)
+ memset(dst, bytestream2_get_byteu(&c->gb), count);
+ else
+ bytestream2_get_buffer(&c->gb, dst, count);
+ dst += count;
+ }
+ break;
+ default:
+ av_log_ask_for_sample(avctx, "unknown/invalid code\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ dst = c->pic.data[0];
+ src = c->frame[c->current_frame];
+ for (i = 0; i < avctx->height; i++) {
+ memcpy(dst, src, avctx->width);
+ dst += c->pic.linesize[0];
+ src += avctx->width;
+ }
+
+ c->current_frame = (c->current_frame + 1) & 3;
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame *)data = c->pic;
+
+ return pkt->size;
+}
+
+static av_cold int paf_vid_close(AVCodecContext *avctx)
+{
+ PAFVideoDecContext *c = avctx->priv_data;
+ int i;
+
+ if (c->pic.data[0])
+ avctx->release_buffer(avctx, &c->pic);
+
+ for (i = 0; i < 4; i++)
+ av_freep(&c->frame[i]);
+
+ return 0;
+}
+
+typedef struct PAFAudioDecContext {
+ AVFrame frame;
+} PAFAudioDecContext;
+
+static av_cold int paf_aud_init(AVCodecContext *avctx)
+{
+ PAFAudioDecContext *c = avctx->priv_data;
+
+ if (avctx->channels != 2) {
+ av_log(avctx, AV_LOG_ERROR, "invalid number of channels\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ avcodec_get_frame_defaults(&c->frame);
+ avctx->channel_layout = AV_CH_LAYOUT_STEREO;
+ avctx->coded_frame = &c->frame;
+ avctx->sample_fmt = AV_SAMPLE_FMT_S16;
+
+ return 0;
+}
+
+static int paf_aud_decode(AVCodecContext *avctx, void *data,
+ int *got_frame_ptr, AVPacket *pkt)
+{
+ PAFAudioDecContext *c = avctx->priv_data;
+ uint8_t *buf = pkt->data;
+ int16_t *output_samples;
+ const uint8_t *t;
+ int frames, ret, i, j, k;
+
+ frames = pkt->size / PAF_SOUND_FRAME_SIZE;
+ if (frames < 1)
+ return AVERROR_INVALIDDATA;
+
+ c->frame.nb_samples = PAF_SOUND_SAMPLES * frames;
++ if ((ret = ff_get_buffer(avctx, &c->frame)) < 0)
+ return ret;
+
+ output_samples = (int16_t *)c->frame.data[0];
+ for (i = 0; i < frames; i++) {
+ t = buf + 256 * sizeof(uint16_t);
+ for (j = 0; j < PAF_SOUND_SAMPLES; j++) {
+ for (k = 0; k < 2; k++) {
+ *output_samples++ = AV_RL16(buf + *t * 2);
+ t++;
+ }
+ }
+ buf += PAF_SOUND_FRAME_SIZE;
+ }
+
+ *got_frame_ptr = 1;
+ *(AVFrame *)data = c->frame;
+
+ return pkt->size;
+}
+
+AVCodec ff_paf_video_decoder = {
+ .name = "paf_video",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_PAF_VIDEO,
+ .priv_data_size = sizeof(PAFVideoDecContext),
+ .init = paf_vid_init,
+ .close = paf_vid_close,
+ .decode = paf_vid_decode,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Amazing Studio Packed Animation File Video"),
+};
+
+AVCodec ff_paf_audio_decoder = {
+ .name = "paf_audio",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_PAF_AUDIO,
+ .priv_data_size = sizeof(PAFAudioDecContext),
+ .init = paf_aud_init,
+ .decode = paf_aud_decode,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Amazing Studio Packed Animation File Audio"),
+};
avctx->release_buffer(avctx, p);
if (av_image_check_size(w, h, 0, avctx))
- return -1;
+ return AVERROR_INVALIDDATA;
if (w != avctx->width || h != avctx->height)
avcodec_set_dimensions(avctx, w, h);
- if ((ret = avctx->get_buffer(avctx, p)) < 0) {
- if (ff_get_buffer(avctx, p) < 0) {
++ if ((ret = ff_get_buffer(avctx, p)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ return ret;
}
p->pict_type = AV_PICTURE_TYPE_I;
if(p->data[0])
avctx->release_buffer(avctx, p);
- p->reference= 0;
+ p->reference= 3;
- if(avctx->get_buffer(avctx, p) < 0){
+ if(ff_get_buffer(avctx, p) < 0){
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
goto fail;
}
*/
#include "avcodec.h"
-#include "bytestream.h"
+ #include "internal.h"
#include "put_bits.h"
#include "pnm.h"
avctx->release_buffer(avctx, p);
p->reference = 0;
- if ((ret = avctx->get_buffer(avctx, p)) < 0) {
- if (ff_get_buffer(avctx, p) < 0) {
++ if ((ret = ff_get_buffer(avctx, p)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ return ret;
}
p->pict_type = AV_PICTURE_TYPE_I;
p->key_frame = 1;
--- /dev/null
- if (avctx->get_buffer(avctx, frame) < 0)
+/*
+ * Copyright (c) 2010-2011 Maxim Poliakovski
+ * Copyright (c) 2010-2011 Elvis Presley
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Known FOURCCs: 'apch' (HQ), 'apcn' (SD), 'apcs' (LT), 'acpo' (Proxy), 'ap4h' (4444)
+ */
+
+//#define DEBUG
+
+#define LONG_BITSTREAM_READER
+
+#include "avcodec.h"
+#include "get_bits.h"
++#include "internal.h"
+#include "simple_idct.h"
+#include "proresdec.h"
+
+static void permute(uint8_t *dst, const uint8_t *src, const uint8_t permutation[64])
+{
+ int i;
+ for (i = 0; i < 64; i++)
+ dst[i] = permutation[src[i]];
+}
+
+static const uint8_t progressive_scan[64] = {
+ 0, 1, 8, 9, 2, 3, 10, 11,
+ 16, 17, 24, 25, 18, 19, 26, 27,
+ 4, 5, 12, 20, 13, 6, 7, 14,
+ 21, 28, 29, 22, 15, 23, 30, 31,
+ 32, 33, 40, 48, 41, 34, 35, 42,
+ 49, 56, 57, 50, 43, 36, 37, 44,
+ 51, 58, 59, 52, 45, 38, 39, 46,
+ 53, 60, 61, 54, 47, 55, 62, 63
+};
+
+static const uint8_t interlaced_scan[64] = {
+ 0, 8, 1, 9, 16, 24, 17, 25,
+ 2, 10, 3, 11, 18, 26, 19, 27,
+ 32, 40, 33, 34, 41, 48, 56, 49,
+ 42, 35, 43, 50, 57, 58, 51, 59,
+ 4, 12, 5, 6, 13, 20, 28, 21,
+ 14, 7, 15, 22, 29, 36, 44, 37,
+ 30, 23, 31, 38, 45, 52, 60, 53,
+ 46, 39, 47, 54, 61, 62, 55, 63,
+};
+
+static av_cold int decode_init(AVCodecContext *avctx)
+{
+ ProresContext *ctx = avctx->priv_data;
+ uint8_t idct_permutation[64];
+
+ avctx->bits_per_raw_sample = 10;
+
+ ff_dsputil_init(&ctx->dsp, avctx);
+ ff_proresdsp_init(&ctx->prodsp, avctx);
+
+ avctx->coded_frame = &ctx->frame;
+ ctx->frame.type = AV_PICTURE_TYPE_I;
+ ctx->frame.key_frame = 1;
+
+ ff_init_scantable_permutation(idct_permutation,
+ ctx->prodsp.idct_permutation_type);
+
+ permute(ctx->progressive_scan, progressive_scan, idct_permutation);
+ permute(ctx->interlaced_scan, interlaced_scan, idct_permutation);
+
+ return 0;
+}
+
+static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
+ const int data_size, AVCodecContext *avctx)
+{
+ int hdr_size, width, height, flags;
+ int version;
+ const uint8_t *ptr;
+
+ hdr_size = AV_RB16(buf);
+ av_dlog(avctx, "header size %d\n", hdr_size);
+ if (hdr_size > data_size) {
+ av_log(avctx, AV_LOG_ERROR, "error, wrong header size\n");
+ return -1;
+ }
+
+ version = AV_RB16(buf + 2);
+ av_dlog(avctx, "%.4s version %d\n", buf+4, version);
+ if (version > 1) {
+ av_log(avctx, AV_LOG_ERROR, "unsupported version: %d\n", version);
+ return -1;
+ }
+
+ width = AV_RB16(buf + 8);
+ height = AV_RB16(buf + 10);
+ if (width != avctx->width || height != avctx->height) {
+ av_log(avctx, AV_LOG_ERROR, "picture resolution change: %dx%d -> %dx%d\n",
+ avctx->width, avctx->height, width, height);
+ return -1;
+ }
+
+ ctx->frame_type = (buf[12] >> 2) & 3;
+
+ av_dlog(avctx, "frame type %d\n", ctx->frame_type);
+
+ if (ctx->frame_type == 0) {
+ ctx->scan = ctx->progressive_scan; // permuted
+ } else {
+ ctx->scan = ctx->interlaced_scan; // permuted
+ ctx->frame.interlaced_frame = 1;
+ ctx->frame.top_field_first = ctx->frame_type == 1;
+ }
+
+ avctx->pix_fmt = (buf[12] & 0xC0) == 0xC0 ? AV_PIX_FMT_YUV444P10 : AV_PIX_FMT_YUV422P10;
+
+ ptr = buf + 20;
+ flags = buf[19];
+ av_dlog(avctx, "flags %x\n", flags);
+
+ if (flags & 2) {
+ if(buf + data_size - ptr < 64) {
+ av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
+ return -1;
+ }
+ permute(ctx->qmat_luma, ctx->prodsp.idct_permutation, ptr);
+ ptr += 64;
+ } else {
+ memset(ctx->qmat_luma, 4, 64);
+ }
+
+ if (flags & 1) {
+ if(buf + data_size - ptr < 64) {
+ av_log(avctx, AV_LOG_ERROR, "Header truncated\n");
+ return -1;
+ }
+ permute(ctx->qmat_chroma, ctx->prodsp.idct_permutation, ptr);
+ } else {
+ memset(ctx->qmat_chroma, 4, 64);
+ }
+
+ return hdr_size;
+}
+
+static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, const int buf_size)
+{
+ ProresContext *ctx = avctx->priv_data;
+ int i, hdr_size, slice_count;
+ unsigned pic_data_size;
+ int log2_slice_mb_width, log2_slice_mb_height;
+ int slice_mb_count, mb_x, mb_y;
+ const uint8_t *data_ptr, *index_ptr;
+
+ hdr_size = buf[0] >> 3;
+ if (hdr_size < 8 || hdr_size > buf_size) {
+ av_log(avctx, AV_LOG_ERROR, "error, wrong picture header size\n");
+ return -1;
+ }
+
+ pic_data_size = AV_RB32(buf + 1);
+ if (pic_data_size > buf_size) {
+ av_log(avctx, AV_LOG_ERROR, "error, wrong picture data size\n");
+ return -1;
+ }
+
+ log2_slice_mb_width = buf[7] >> 4;
+ log2_slice_mb_height = buf[7] & 0xF;
+ if (log2_slice_mb_width > 3 || log2_slice_mb_height) {
+ av_log(avctx, AV_LOG_ERROR, "unsupported slice resolution: %dx%d\n",
+ 1 << log2_slice_mb_width, 1 << log2_slice_mb_height);
+ return -1;
+ }
+
+ ctx->mb_width = (avctx->width + 15) >> 4;
+ if (ctx->frame_type)
+ ctx->mb_height = (avctx->height + 31) >> 5;
+ else
+ ctx->mb_height = (avctx->height + 15) >> 4;
+
+ slice_count = AV_RB16(buf + 5);
+
+ if (ctx->slice_count != slice_count || !ctx->slices) {
+ av_freep(&ctx->slices);
+ ctx->slices = av_mallocz(slice_count * sizeof(*ctx->slices));
+ if (!ctx->slices)
+ return AVERROR(ENOMEM);
+ ctx->slice_count = slice_count;
+ }
+
+ if (!slice_count)
+ return AVERROR(EINVAL);
+
+ if (hdr_size + slice_count*2 > buf_size) {
+ av_log(avctx, AV_LOG_ERROR, "error, wrong slice count\n");
+ return -1;
+ }
+
+ // parse slice information
+ index_ptr = buf + hdr_size;
+ data_ptr = index_ptr + slice_count*2;
+
+ slice_mb_count = 1 << log2_slice_mb_width;
+ mb_x = 0;
+ mb_y = 0;
+
+ for (i = 0; i < slice_count; i++) {
+ SliceContext *slice = &ctx->slices[i];
+
+ slice->data = data_ptr;
+ data_ptr += AV_RB16(index_ptr + i*2);
+
+ while (ctx->mb_width - mb_x < slice_mb_count)
+ slice_mb_count >>= 1;
+
+ slice->mb_x = mb_x;
+ slice->mb_y = mb_y;
+ slice->mb_count = slice_mb_count;
+ slice->data_size = data_ptr - slice->data;
+
+ if (slice->data_size < 6) {
+ av_log(avctx, AV_LOG_ERROR, "error, wrong slice data size\n");
+ return -1;
+ }
+
+ mb_x += slice_mb_count;
+ if (mb_x == ctx->mb_width) {
+ slice_mb_count = 1 << log2_slice_mb_width;
+ mb_x = 0;
+ mb_y++;
+ }
+ if (data_ptr > buf + buf_size) {
+ av_log(avctx, AV_LOG_ERROR, "error, slice out of bounds\n");
+ return -1;
+ }
+ }
+
+ if (mb_x || mb_y != ctx->mb_height) {
+ av_log(avctx, AV_LOG_ERROR, "error wrong mb count y %d h %d\n",
+ mb_y, ctx->mb_height);
+ return -1;
+ }
+
+ return pic_data_size;
+}
+
+#define DECODE_CODEWORD(val, codebook) \
+ do { \
+ unsigned int rice_order, exp_order, switch_bits; \
+ unsigned int q, buf, bits; \
+ \
+ UPDATE_CACHE(re, gb); \
+ buf = GET_CACHE(re, gb); \
+ \
+ /* number of bits to switch between rice and exp golomb */ \
+ switch_bits = codebook & 3; \
+ rice_order = codebook >> 5; \
+ exp_order = (codebook >> 2) & 7; \
+ \
+ q = 31 - av_log2(buf); \
+ \
+ if (q > switch_bits) { /* exp golomb */ \
+ bits = exp_order - switch_bits + (q<<1); \
+ val = SHOW_UBITS(re, gb, bits) - (1 << exp_order) + \
+ ((switch_bits + 1) << rice_order); \
+ SKIP_BITS(re, gb, bits); \
+ } else if (rice_order) { \
+ SKIP_BITS(re, gb, q+1); \
+ val = (q << rice_order) + SHOW_UBITS(re, gb, rice_order); \
+ SKIP_BITS(re, gb, rice_order); \
+ } else { \
+ val = q; \
+ SKIP_BITS(re, gb, q+1); \
+ } \
+ } while (0)
+
+#define TOSIGNED(x) (((x) >> 1) ^ (-((x) & 1)))
+
+#define FIRST_DC_CB 0xB8
+
+static const uint8_t dc_codebook[7] = { 0x04, 0x28, 0x28, 0x4D, 0x4D, 0x70, 0x70};
+
+static av_always_inline void decode_dc_coeffs(GetBitContext *gb, DCTELEM *out,
+ int blocks_per_slice)
+{
+ DCTELEM prev_dc;
+ int code, i, sign;
+
+ OPEN_READER(re, gb);
+
+ DECODE_CODEWORD(code, FIRST_DC_CB);
+ prev_dc = TOSIGNED(code);
+ out[0] = prev_dc;
+
+ out += 64; // dc coeff for the next block
+
+ code = 5;
+ sign = 0;
+ for (i = 1; i < blocks_per_slice; i++, out += 64) {
+ DECODE_CODEWORD(code, dc_codebook[FFMIN(code, 6U)]);
+ if(code) sign ^= -(code & 1);
+ else sign = 0;
+ prev_dc += (((code + 1) >> 1) ^ sign) - sign;
+ out[0] = prev_dc;
+ }
+ CLOSE_READER(re, gb);
+}
+
+// adaptive codebook switching lut according to previous run/level values
+static const uint8_t run_to_cb[16] = { 0x06, 0x06, 0x05, 0x05, 0x04, 0x29, 0x29, 0x29, 0x29, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x4C };
+static const uint8_t lev_to_cb[10] = { 0x04, 0x0A, 0x05, 0x06, 0x04, 0x28, 0x28, 0x28, 0x28, 0x4C };
+
+static av_always_inline void decode_ac_coeffs(AVCodecContext *avctx, GetBitContext *gb,
+ DCTELEM *out, int blocks_per_slice)
+{
+ ProresContext *ctx = avctx->priv_data;
+ int block_mask, sign;
+ unsigned pos, run, level;
+ int max_coeffs, i, bits_left;
+ int log2_block_count = av_log2(blocks_per_slice);
+
+ OPEN_READER(re, gb);
+ UPDATE_CACHE(re, gb); \
+ run = 4;
+ level = 2;
+
+ max_coeffs = 64 << log2_block_count;
+ block_mask = blocks_per_slice - 1;
+
+ for (pos = block_mask;;) {
+ bits_left = gb->size_in_bits - re_index;
+ if (!bits_left || (bits_left < 32 && !SHOW_UBITS(re, gb, bits_left)))
+ break;
+
+ DECODE_CODEWORD(run, run_to_cb[FFMIN(run, 15)]);
+ pos += run + 1;
+ if (pos >= max_coeffs) {
+ av_log(avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", pos, max_coeffs);
+ return;
+ }
+
+ DECODE_CODEWORD(level, lev_to_cb[FFMIN(level, 9)]);
+ level += 1;
+
+ i = pos >> log2_block_count;
+
+ sign = SHOW_SBITS(re, gb, 1);
+ SKIP_BITS(re, gb, 1);
+ out[((pos & block_mask) << 6) + ctx->scan[i]] = ((level ^ sign) - sign);
+ }
+
+ CLOSE_READER(re, gb);
+}
+
+static void decode_slice_luma(AVCodecContext *avctx, SliceContext *slice,
+ uint16_t *dst, int dst_stride,
+ const uint8_t *buf, unsigned buf_size,
+ const int16_t *qmat)
+{
+ ProresContext *ctx = avctx->priv_data;
+ LOCAL_ALIGNED_16(DCTELEM, blocks, [8*4*64]);
+ DCTELEM *block;
+ GetBitContext gb;
+ int i, blocks_per_slice = slice->mb_count<<2;
+
+ for (i = 0; i < blocks_per_slice; i++)
+ ctx->dsp.clear_block(blocks+(i<<6));
+
+ init_get_bits(&gb, buf, buf_size << 3);
+
+ decode_dc_coeffs(&gb, blocks, blocks_per_slice);
+ decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice);
+
+ block = blocks;
+ for (i = 0; i < slice->mb_count; i++) {
+ ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
+ ctx->prodsp.idct_put(dst +8, dst_stride, block+(1<<6), qmat);
+ ctx->prodsp.idct_put(dst+4*dst_stride , dst_stride, block+(2<<6), qmat);
+ ctx->prodsp.idct_put(dst+4*dst_stride+8, dst_stride, block+(3<<6), qmat);
+ block += 4*64;
+ dst += 16;
+ }
+}
+
+static void decode_slice_chroma(AVCodecContext *avctx, SliceContext *slice,
+ uint16_t *dst, int dst_stride,
+ const uint8_t *buf, unsigned buf_size,
+ const int16_t *qmat, int log2_blocks_per_mb)
+{
+ ProresContext *ctx = avctx->priv_data;
+ LOCAL_ALIGNED_16(DCTELEM, blocks, [8*4*64]);
+ DCTELEM *block;
+ GetBitContext gb;
+ int i, j, blocks_per_slice = slice->mb_count << log2_blocks_per_mb;
+
+ for (i = 0; i < blocks_per_slice; i++)
+ ctx->dsp.clear_block(blocks+(i<<6));
+
+ init_get_bits(&gb, buf, buf_size << 3);
+
+ decode_dc_coeffs(&gb, blocks, blocks_per_slice);
+ decode_ac_coeffs(avctx, &gb, blocks, blocks_per_slice);
+
+ block = blocks;
+ for (i = 0; i < slice->mb_count; i++) {
+ for (j = 0; j < log2_blocks_per_mb; j++) {
+ ctx->prodsp.idct_put(dst, dst_stride, block+(0<<6), qmat);
+ ctx->prodsp.idct_put(dst+4*dst_stride, dst_stride, block+(1<<6), qmat);
+ block += 2*64;
+ dst += 8;
+ }
+ }
+}
+
+static int decode_slice_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
+{
+ ProresContext *ctx = avctx->priv_data;
+ SliceContext *slice = &ctx->slices[jobnr];
+ const uint8_t *buf = slice->data;
+ AVFrame *pic = avctx->coded_frame;
+ int i, hdr_size, qscale, log2_chroma_blocks_per_mb;
+ int luma_stride, chroma_stride;
+ int y_data_size, u_data_size, v_data_size;
+ uint8_t *dest_y, *dest_u, *dest_v;
+ int16_t qmat_luma_scaled[64];
+ int16_t qmat_chroma_scaled[64];
+ int mb_x_shift;
+
+ slice->ret = -1;
+ //av_log(avctx, AV_LOG_INFO, "slice %d mb width %d mb x %d y %d\n",
+ // jobnr, slice->mb_count, slice->mb_x, slice->mb_y);
+
+ // slice header
+ hdr_size = buf[0] >> 3;
+ qscale = av_clip(buf[1], 1, 224);
+ qscale = qscale > 128 ? qscale - 96 << 2: qscale;
+ y_data_size = AV_RB16(buf + 2);
+ u_data_size = AV_RB16(buf + 4);
+ v_data_size = slice->data_size - y_data_size - u_data_size - hdr_size;
+ if (hdr_size > 7) v_data_size = AV_RB16(buf + 6);
+
+ if (y_data_size < 0 || u_data_size < 0 || v_data_size < 0
+ || hdr_size+y_data_size+u_data_size+v_data_size > slice->data_size){
+ av_log(avctx, AV_LOG_ERROR, "invalid plane data size\n");
+ return -1;
+ }
+
+ buf += hdr_size;
+
+ for (i = 0; i < 64; i++) {
+ qmat_luma_scaled [i] = ctx->qmat_luma [i] * qscale;
+ qmat_chroma_scaled[i] = ctx->qmat_chroma[i] * qscale;
+ }
+
+ if (ctx->frame_type == 0) {
+ luma_stride = pic->linesize[0];
+ chroma_stride = pic->linesize[1];
+ } else {
+ luma_stride = pic->linesize[0] << 1;
+ chroma_stride = pic->linesize[1] << 1;
+ }
+
+ if (avctx->pix_fmt == AV_PIX_FMT_YUV444P10) {
+ mb_x_shift = 5;
+ log2_chroma_blocks_per_mb = 2;
+ } else {
+ mb_x_shift = 4;
+ log2_chroma_blocks_per_mb = 1;
+ }
+
+ dest_y = pic->data[0] + (slice->mb_y << 4) * luma_stride + (slice->mb_x << 5);
+ dest_u = pic->data[1] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
+ dest_v = pic->data[2] + (slice->mb_y << 4) * chroma_stride + (slice->mb_x << mb_x_shift);
+
+ if (ctx->frame_type && ctx->first_field ^ ctx->frame.top_field_first) {
+ dest_y += pic->linesize[0];
+ dest_u += pic->linesize[1];
+ dest_v += pic->linesize[2];
+ }
+
+ decode_slice_luma(avctx, slice, (uint16_t*)dest_y, luma_stride,
+ buf, y_data_size, qmat_luma_scaled);
+
+ if (!(avctx->flags & CODEC_FLAG_GRAY)) {
+ decode_slice_chroma(avctx, slice, (uint16_t*)dest_u, chroma_stride,
+ buf + y_data_size, u_data_size,
+ qmat_chroma_scaled, log2_chroma_blocks_per_mb);
+ decode_slice_chroma(avctx, slice, (uint16_t*)dest_v, chroma_stride,
+ buf + y_data_size + u_data_size, v_data_size,
+ qmat_chroma_scaled, log2_chroma_blocks_per_mb);
+ }
+
+ slice->ret = 0;
+ return 0;
+}
+
+static int decode_picture(AVCodecContext *avctx)
+{
+ ProresContext *ctx = avctx->priv_data;
+ int i;
+
+ avctx->execute2(avctx, decode_slice_thread, NULL, NULL, ctx->slice_count);
+
+ for (i = 0; i < ctx->slice_count; i++)
+ if (ctx->slices[i].ret < 0)
+ return ctx->slices[i].ret;
+
+ return 0;
+}
+
+static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+ AVPacket *avpkt)
+{
+ ProresContext *ctx = avctx->priv_data;
+ AVFrame *frame = avctx->coded_frame;
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
+ int frame_hdr_size, pic_size;
+
+ if (buf_size < 28 || AV_RL32(buf + 4) != AV_RL32("icpf")) {
+ av_log(avctx, AV_LOG_ERROR, "invalid frame header\n");
+ return -1;
+ }
+
+ ctx->first_field = 1;
+
+ buf += 8;
+ buf_size -= 8;
+
+ frame_hdr_size = decode_frame_header(ctx, buf, buf_size, avctx);
+ if (frame_hdr_size < 0)
+ return -1;
+
+ buf += frame_hdr_size;
+ buf_size -= frame_hdr_size;
+
+ if (frame->data[0])
+ avctx->release_buffer(avctx, frame);
+
++ if (ff_get_buffer(avctx, frame) < 0)
+ return -1;
+
+ decode_picture:
+ pic_size = decode_picture_header(avctx, buf, buf_size);
+ if (pic_size < 0) {
+ av_log(avctx, AV_LOG_ERROR, "error decoding picture header\n");
+ return -1;
+ }
+
+ if (decode_picture(avctx)) {
+ av_log(avctx, AV_LOG_ERROR, "error decoding picture\n");
+ return -1;
+ }
+
+ buf += pic_size;
+ buf_size -= pic_size;
+
+ if (ctx->frame_type && buf_size > 0 && ctx->first_field) {
+ ctx->first_field = 0;
+ goto decode_picture;
+ }
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame*)data = *frame;
+
+ return avpkt->size;
+}
+
+static av_cold int decode_close(AVCodecContext *avctx)
+{
+ ProresContext *ctx = avctx->priv_data;
+
+ AVFrame *frame = avctx->coded_frame;
+ if (frame->data[0])
+ avctx->release_buffer(avctx, frame);
+ av_freep(&ctx->slices);
+
+ return 0;
+}
+
+AVCodec ff_prores_decoder = {
+ .name = "prores",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_PRORES,
+ .priv_data_size = sizeof(ProresContext),
+ .init = decode_init,
+ .close = decode_close,
+ .decode = decode_frame,
+ .long_name = NULL_IF_CONFIG_SMALL("ProRes"),
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_SLICE_THREADS,
+};
f->owner = avctx;
+ ff_init_buffer_info(avctx, f);
+
if (!(avctx->active_thread_type&FF_THREAD_FRAME)) {
f->thread_opaque = NULL;
- return avctx->get_buffer(avctx, f);
+ return ff_get_buffer(avctx, f);
}
if (p->state != STATE_SETTING_UP &&
if (avctx->thread_safe_callbacks ||
avctx->get_buffer == avcodec_default_get_buffer) {
- err = avctx->get_buffer(avctx, f);
+ err = ff_get_buffer(avctx, f);
} else {
+ pthread_mutex_lock(&p->progress_mutex);
p->requested_frame = f;
p->state = STATE_GET_BUFFER;
- pthread_mutex_lock(&p->progress_mutex);
- pthread_cond_signal(&p->progress_cond);
+ pthread_cond_broadcast(&p->progress_cond);
while (p->state != STATE_SETTING_UP)
pthread_cond_wait(&p->progress_cond, &p->progress_mutex);
#include "avcodec.h"
#include "bytestream.h"
++#include "internal.h"
typedef struct QpegContext{
AVCodecContext *avctx;
}
bytestream2_init(&a->buffer, avpkt->data, avpkt->size);
- p->reference = 3;
- if (avctx->reget_buffer(avctx, p) < 0) {
- av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
+
+ if(ref->data[0])
+ avctx->release_buffer(avctx, ref);
+ FFSWAP(AVFrame, *ref, *p);
+
+ p->reference= 3;
- if(avctx->get_buffer(avctx, p) < 0){
++ if(ff_get_buffer(avctx, p) < 0){
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
outdata = a->pic.data[0];
/** get buffer */
s->frame.reference= 0;
- if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
- if(ff_get_buffer(avctx, &s->frame)) {
++ if ((ret = ff_get_buffer(avctx, &s->frame)) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ return ret;
}
/** run length decode */
--- /dev/null
- if ((ret = ctx->avctx->get_buffer(ctx->avctx, ctx->output)) < 0) {
+/*
+ * LucasArts Smush video decoder
+ * Copyright (c) 2006 Cyril Zorin
+ * Copyright (c) 2011 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+// #define DEBUG 1
+
+#include "avcodec.h"
+#include "bytestream.h"
++#include "internal.h"
+#include "libavutil/bswap.h"
+#include "libavcodec/dsputil.h"
+#include "sanm_data.h"
+
+#define NGLYPHS 256
+
+typedef struct {
+ AVCodecContext *avctx;
+ GetByteContext gb;
+
+ int version, subversion;
+ uint32_t pal[256];
+ int16_t delta_pal[768];
+
+ int pitch;
+ int width, height;
+ int aligned_width, aligned_height;
+ int prev_seq;
+
+ AVFrame frame, *output;
+ uint16_t *frm0, *frm1, *frm2;
+ uint8_t *stored_frame;
+ uint32_t frm0_size, frm1_size, frm2_size;
+ uint32_t stored_frame_size;
+
+ uint8_t *rle_buf;
+ unsigned int rle_buf_size;
+
+ int rotate_code;
+
+ long npixels, buf_size;
+
+ uint16_t codebook[256];
+ uint16_t small_codebook[4];
+
+ int8_t p4x4glyphs[NGLYPHS][16];
+ int8_t p8x8glyphs[NGLYPHS][64];
+} SANMVideoContext;
+
+typedef struct {
+ int seq_num, codec, rotate_code, rle_output_size;
+
+ uint16_t bg_color;
+ uint32_t width, height;
+} SANMFrameHeader;
+
+enum GlyphEdge {
+ LEFT_EDGE,
+ TOP_EDGE,
+ RIGHT_EDGE,
+ BOTTOM_EDGE,
+ NO_EDGE
+};
+
+enum GlyphDir {
+ DIR_LEFT,
+ DIR_UP,
+ DIR_RIGHT,
+ DIR_DOWN,
+ NO_DIR
+};
+
+/**
+ * Return enum GlyphEdge of box where point (x, y) lies.
+ *
+ * @param x x point coordinate
+ * @param y y point coordinate
+ * @param edge_size box width/height.
+ */
+static enum GlyphEdge which_edge(int x, int y, int edge_size)
+{
+ const int edge_max = edge_size - 1;
+
+ if (!y) {
+ return BOTTOM_EDGE;
+ } else if (y == edge_max) {
+ return TOP_EDGE;
+ } else if (!x) {
+ return LEFT_EDGE;
+ } else if (x == edge_max) {
+ return RIGHT_EDGE;
+ } else {
+ return NO_EDGE;
+ }
+}
+
+static enum GlyphDir which_direction(enum GlyphEdge edge0, enum GlyphEdge edge1)
+{
+ if ((edge0 == LEFT_EDGE && edge1 == RIGHT_EDGE) ||
+ (edge1 == LEFT_EDGE && edge0 == RIGHT_EDGE) ||
+ (edge0 == BOTTOM_EDGE && edge1 != TOP_EDGE) ||
+ (edge1 == BOTTOM_EDGE && edge0 != TOP_EDGE)) {
+ return DIR_UP;
+ } else if ((edge0 == TOP_EDGE && edge1 != BOTTOM_EDGE) ||
+ (edge1 == TOP_EDGE && edge0 != BOTTOM_EDGE)) {
+ return DIR_DOWN;
+ } else if ((edge0 == LEFT_EDGE && edge1 != RIGHT_EDGE) ||
+ (edge1 == LEFT_EDGE && edge0 != RIGHT_EDGE)) {
+ return DIR_LEFT;
+ } else if ((edge0 == TOP_EDGE && edge1 == BOTTOM_EDGE) ||
+ (edge1 == TOP_EDGE && edge0 == BOTTOM_EDGE) ||
+ (edge0 == RIGHT_EDGE && edge1 != LEFT_EDGE) ||
+ (edge1 == RIGHT_EDGE && edge0 != LEFT_EDGE)) {
+ return DIR_RIGHT;
+ }
+
+ return NO_DIR;
+}
+
+/**
+ * Interpolate two points.
+ */
+static void interp_point(int8_t *points, int x0, int y0, int x1, int y1,
+ int pos, int npoints)
+{
+ if (npoints) {
+ points[0] = (x0 * pos + x1 * (npoints - pos) + (npoints >> 1)) / npoints;
+ points[1] = (y0 * pos + y1 * (npoints - pos) + (npoints >> 1)) / npoints;
+ } else {
+ points[0] = x0;
+ points[1] = y0;
+ }
+}
+
+/**
+ * Construct glyphs by iterating through vectors coordinates.
+ *
+ * @param pglyphs pointer to table where glyphs are stored
+ * @param xvec pointer to x component of vectors coordinates
+ * @param yvec pointer to y component of vectors coordinates
+ * @param side_length glyph width/height.
+ */
+static void make_glyphs(int8_t *pglyphs, const int8_t *xvec, const int8_t *yvec,
+ const int side_length)
+{
+ const int glyph_size = side_length * side_length;
+ int8_t *pglyph = pglyphs;
+
+ int i, j;
+ for (i = 0; i < GLYPH_COORD_VECT_SIZE; i++) {
+ int x0 = xvec[i];
+ int y0 = yvec[i];
+ enum GlyphEdge edge0 = which_edge(x0, y0, side_length);
+
+ for (j = 0; j < GLYPH_COORD_VECT_SIZE; j++, pglyph += glyph_size) {
+ int x1 = xvec[j];
+ int y1 = yvec[j];
+ enum GlyphEdge edge1 = which_edge(x1, y1, side_length);
+ enum GlyphDir dir = which_direction(edge0, edge1);
+ int npoints = FFMAX(FFABS(x1 - x0), FFABS(y1 - y0));
+ int ipoint;
+
+ for (ipoint = 0; ipoint <= npoints; ipoint++) {
+ int8_t point[2];
+ int irow, icol;
+
+ interp_point(point, x0, y0, x1, y1, ipoint, npoints);
+
+ switch (dir) {
+ case DIR_UP:
+ for (irow = point[1]; irow >= 0; irow--)
+ pglyph[point[0] + irow * side_length] = 1;
+ break;
+
+ case DIR_DOWN:
+ for (irow = point[1]; irow < side_length; irow++)
+ pglyph[point[0] + irow * side_length] = 1;
+ break;
+
+ case DIR_LEFT:
+ for (icol = point[0]; icol >= 0; icol--)
+ pglyph[icol + point[1] * side_length] = 1;
+ break;
+
+ case DIR_RIGHT:
+ for (icol = point[0]; icol < side_length; icol++)
+ pglyph[icol + point[1] * side_length] = 1;
+ break;
+ }
+ }
+ }
+ }
+}
+
+static void init_sizes(SANMVideoContext *ctx, int width, int height)
+{
+ ctx->width = width;
+ ctx->height = height;
+ ctx->npixels = width * height;
+
+ ctx->aligned_width = FFALIGN(width, 8);
+ ctx->aligned_height = FFALIGN(height, 8);
+
+ ctx->buf_size = ctx->aligned_width * ctx->aligned_height * sizeof(ctx->frm0[0]);
+ ctx->pitch = width;
+}
+
+static void destroy_buffers(SANMVideoContext *ctx)
+{
+ av_freep(&ctx->frm0);
+ av_freep(&ctx->frm1);
+ av_freep(&ctx->frm2);
+ av_freep(&ctx->stored_frame);
+ av_freep(&ctx->rle_buf);
+}
+
+static av_cold int init_buffers(SANMVideoContext *ctx)
+{
+ av_fast_padded_malloc(&ctx->frm0, &ctx->frm0_size, ctx->buf_size);
+ av_fast_padded_malloc(&ctx->frm1, &ctx->frm1_size, ctx->buf_size);
+ av_fast_padded_malloc(&ctx->frm2, &ctx->frm2_size, ctx->buf_size);
+ if (!ctx->version)
+ av_fast_padded_malloc(&ctx->stored_frame, &ctx->stored_frame_size, ctx->buf_size);
+
+ if (!ctx->frm0 || !ctx->frm1 || !ctx->frm2 || (!ctx->stored_frame && !ctx->version)) {
+ destroy_buffers(ctx);
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static void rotate_bufs(SANMVideoContext *ctx, int rotate_code)
+{
+ av_dlog(ctx->avctx, "rotate %d\n", rotate_code);
+ if (rotate_code == 2)
+ FFSWAP(uint16_t*, ctx->frm1, ctx->frm2);
+ FFSWAP(uint16_t*, ctx->frm2, ctx->frm0);
+}
+
+static av_cold int decode_init(AVCodecContext *avctx)
+{
+ SANMVideoContext *ctx = avctx->priv_data;
+
+ ctx->avctx = avctx;
+ ctx->version = !avctx->extradata_size;
+
+ avctx->pix_fmt = ctx->version ? AV_PIX_FMT_RGB565 : AV_PIX_FMT_PAL8;
+
+ init_sizes(ctx, avctx->width, avctx->height);
+ if (init_buffers(ctx)) {
+ av_log(avctx, AV_LOG_ERROR, "error allocating buffers\n");
+ return AVERROR(ENOMEM);
+ }
+ ctx->output = &ctx->frame;
+ ctx->output->data[0] = 0;
+
+ make_glyphs(ctx->p4x4glyphs[0], glyph4_x, glyph4_y, 4);
+ make_glyphs(ctx->p8x8glyphs[0], glyph8_x, glyph8_y, 8);
+
+ if (!ctx->version) {
+ int i;
+
+ if (avctx->extradata_size < 1026) {
+ av_log(avctx, AV_LOG_ERROR, "not enough extradata\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ ctx->subversion = AV_RL16(avctx->extradata);
+ for (i = 0; i < 256; i++)
+ ctx->pal[i] = 0xFFU << 24 | AV_RL32(avctx->extradata + 2 + i * 4);
+ }
+
+ return 0;
+}
+
+static av_cold int decode_end(AVCodecContext *avctx)
+{
+ SANMVideoContext *ctx = avctx->priv_data;
+
+ destroy_buffers(ctx);
+
+ if (ctx->frame.data[0]) {
+ avctx->release_buffer(avctx, &ctx->frame);
+ ctx->frame.data[0] = 0;
+ }
+
+ return 0;
+}
+
+static int rle_decode(SANMVideoContext *ctx, uint8_t *dst, const int out_size)
+{
+ int opcode, color, run_len, left = out_size;
+
+ while (left > 0) {
+ opcode = bytestream2_get_byte(&ctx->gb);
+ run_len = (opcode >> 1) + 1;
+ if (run_len > left || bytestream2_get_bytes_left(&ctx->gb) <= 0)
+ return AVERROR_INVALIDDATA;
+
+ if (opcode & 1) {
+ color = bytestream2_get_byte(&ctx->gb);
+ memset(dst, color, run_len);
+ } else {
+ if (bytestream2_get_bytes_left(&ctx->gb) < run_len)
+ return AVERROR_INVALIDDATA;
+ bytestream2_get_bufferu(&ctx->gb, dst, run_len);
+ }
+
+ dst += run_len;
+ left -= run_len;
+ }
+
+ return 0;
+}
+
+static int old_codec1(SANMVideoContext *ctx, int top,
+ int left, int width, int height)
+{
+ uint8_t *dst = ((uint8_t*)ctx->frm0) + left + top * ctx->pitch;
+ int i, j, len, flag, code, val, pos, end;
+
+ for (i = 0; i < height; i++) {
+ pos = 0;
+
+ if (bytestream2_get_bytes_left(&ctx->gb) < 2)
+ return AVERROR_INVALIDDATA;
+
+ len = bytestream2_get_le16u(&ctx->gb);
+ end = bytestream2_tell(&ctx->gb) + len;
+
+ while (bytestream2_tell(&ctx->gb) < end) {
+ if (bytestream2_get_bytes_left(&ctx->gb) < 2)
+ return AVERROR_INVALIDDATA;
+
+ code = bytestream2_get_byteu(&ctx->gb);
+ flag = code & 1;
+ code = (code >> 1) + 1;
+ if (pos + code > width)
+ return AVERROR_INVALIDDATA;
+ if (flag) {
+ val = bytestream2_get_byteu(&ctx->gb);
+ if (val)
+ memset(dst + pos, val, code);
+ pos += code;
+ } else {
+ if (bytestream2_get_bytes_left(&ctx->gb) < code)
+ return AVERROR_INVALIDDATA;
+ for (j = 0; j < code; j++) {
+ val = bytestream2_get_byteu(&ctx->gb);
+ if (val)
+ dst[pos] = val;
+ pos++;
+ }
+ }
+ }
+ dst += ctx->pitch;
+ }
+ ctx->rotate_code = 0;
+
+ return 0;
+}
+
+static inline void codec37_mv(uint8_t *dst, const uint8_t *src,
+ int height, int stride, int x, int y)
+{
+ int pos, i, j;
+
+ pos = x + y * stride;
+ for (j = 0; j < 4; j++) {
+ for (i = 0; i < 4; i++) {
+ if ((pos + i) < 0 || (pos + i) >= height * stride)
+ dst[i] = 0;
+ else
+ dst[i] = src[i];
+ }
+ dst += stride;
+ src += stride;
+ pos += stride;
+ }
+}
+
+static int old_codec37(SANMVideoContext *ctx, int top,
+ int left, int width, int height)
+{
+ int stride = ctx->pitch;
+ int i, j, k, t;
+ int skip_run = 0;
+ int compr, mvoff, seq, flags;
+ uint32_t decoded_size;
+ uint8_t *dst, *prev;
+
+ compr = bytestream2_get_byte(&ctx->gb);
+ mvoff = bytestream2_get_byte(&ctx->gb);
+ seq = bytestream2_get_le16(&ctx->gb);
+ decoded_size = bytestream2_get_le32(&ctx->gb);
+ bytestream2_skip(&ctx->gb, 4);
+ flags = bytestream2_get_byte(&ctx->gb);
+ bytestream2_skip(&ctx->gb, 3);
+
+ ctx->rotate_code = 0;
+
+ if (((seq & 1) || !(flags & 1)) && (compr && compr != 2))
+ rotate_bufs(ctx, 1);
+
+ dst = ((uint8_t*)ctx->frm0) + left + top * stride;
+ prev = ((uint8_t*)ctx->frm2) + left + top * stride;
+
+ if (mvoff > 2) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "invalid motion base value %d\n", mvoff);
+ return AVERROR_INVALIDDATA;
+ }
+ av_dlog(ctx->avctx, "compression %d\n", compr);
+ switch (compr) {
+ case 0:
+ for (i = 0; i < height; i++) {
+ bytestream2_get_buffer(&ctx->gb, dst, width);
+ dst += stride;
+ }
+ memset(ctx->frm1, 0, ctx->height * stride);
+ memset(ctx->frm2, 0, ctx->height * stride);
+ break;
+ case 2:
+ if (rle_decode(ctx, dst, decoded_size))
+ return AVERROR_INVALIDDATA;
+ memset(ctx->frm1, 0, ctx->frm1_size);
+ memset(ctx->frm2, 0, ctx->frm2_size);
+ break;
+ case 3:
+ case 4:
+ if (flags & 4) {
+ for (j = 0; j < height; j += 4) {
+ for (i = 0; i < width; i += 4) {
+ int code;
+ if (skip_run) {
+ skip_run--;
+ copy_block4(dst + i, prev + i, stride, stride, 4);
+ continue;
+ }
+ if (bytestream2_get_bytes_left(&ctx->gb) < 1)
+ return AVERROR_INVALIDDATA;
+ code = bytestream2_get_byteu(&ctx->gb);
+ switch (code) {
+ case 0xFF:
+ if (bytestream2_get_bytes_left(&ctx->gb) < 16)
+ return AVERROR_INVALIDDATA;
+ for (k = 0; k < 4; k++)
+ bytestream2_get_bufferu(&ctx->gb, dst + i + k * stride, 4);
+ break;
+ case 0xFE:
+ if (bytestream2_get_bytes_left(&ctx->gb) < 4)
+ return AVERROR_INVALIDDATA;
+ for (k = 0; k < 4; k++)
+ memset(dst + i + k * stride, bytestream2_get_byteu(&ctx->gb), 4);
+ break;
+ case 0xFD:
+ if (bytestream2_get_bytes_left(&ctx->gb) < 1)
+ return AVERROR_INVALIDDATA;
+ t = bytestream2_get_byteu(&ctx->gb);
+ for (k = 0; k < 4; k++)
+ memset(dst + i + k * stride, t, 4);
+ break;
+ default:
+ if (compr == 4 && !code) {
+ if (bytestream2_get_bytes_left(&ctx->gb) < 1)
+ return AVERROR_INVALIDDATA;
+ skip_run = bytestream2_get_byteu(&ctx->gb) + 1;
+ i -= 4;
+ } else {
+ int mx, my;
+
+ mx = c37_mv[(mvoff * 255 + code) * 2 ];
+ my = c37_mv[(mvoff * 255 + code) * 2 + 1];
+ codec37_mv(dst + i, prev + i + mx + my * stride,
+ ctx->height, stride, i + mx, j + my);
+ }
+ }
+ }
+ dst += stride * 4;
+ prev += stride * 4;
+ }
+ } else {
+ for (j = 0; j < height; j += 4) {
+ for (i = 0; i < width; i += 4) {
+ int code;
+ if (skip_run) {
+ skip_run--;
+ copy_block4(dst + i, prev + i, stride, stride, 4);
+ continue;
+ }
+ code = bytestream2_get_byte(&ctx->gb);
+ if (code == 0xFF) {
+ if (bytestream2_get_bytes_left(&ctx->gb) < 16)
+ return AVERROR_INVALIDDATA;
+ for (k = 0; k < 4; k++)
+ bytestream2_get_bufferu(&ctx->gb, dst + i + k * stride, 4);
+ } else if (compr == 4 && !code) {
+ if (bytestream2_get_bytes_left(&ctx->gb) < 1)
+ return AVERROR_INVALIDDATA;
+ skip_run = bytestream2_get_byteu(&ctx->gb) + 1;
+ i -= 4;
+ } else {
+ int mx, my;
+
+ mx = c37_mv[(mvoff * 255 + code) * 2];
+ my = c37_mv[(mvoff * 255 + code) * 2 + 1];
+ codec37_mv(dst + i, prev + i + mx + my * stride,
+ ctx->height, stride, i + mx, j + my);
+ }
+ }
+ dst += stride * 4;
+ prev += stride * 4;
+ }
+ }
+ break;
+ default:
+ av_log(ctx->avctx, AV_LOG_ERROR,
+ "subcodec 37 compression %d not implemented\n", compr);
+ return AVERROR_PATCHWELCOME;
+ }
+
+ return 0;
+}
+
+static int process_block(SANMVideoContext *ctx, uint8_t *dst, uint8_t *prev1,
+ uint8_t *prev2, int stride, int tbl, int size)
+{
+ int code, k, t;
+ uint8_t colors[2];
+ int8_t *pglyph;
+
+ if (bytestream2_get_bytes_left(&ctx->gb) < 1)
+ return AVERROR_INVALIDDATA;
+
+ code = bytestream2_get_byteu(&ctx->gb);
+ if (code >= 0xF8) {
+ switch (code) {
+ case 0xFF:
+ if (size == 2) {
+ if (bytestream2_get_bytes_left(&ctx->gb) < 4)
+ return AVERROR_INVALIDDATA;
+ dst[0] = bytestream2_get_byteu(&ctx->gb);
+ dst[1] = bytestream2_get_byteu(&ctx->gb);
+ dst[0+stride] = bytestream2_get_byteu(&ctx->gb);
+ dst[1+stride] = bytestream2_get_byteu(&ctx->gb);
+ } else {
+ size >>= 1;
+ if (process_block(ctx, dst, prev1, prev2, stride, tbl, size))
+ return AVERROR_INVALIDDATA;
+ if (process_block(ctx, dst + size, prev1 + size, prev2 + size,
+ stride, tbl, size))
+ return AVERROR_INVALIDDATA;
+ dst += size * stride;
+ prev1 += size * stride;
+ prev2 += size * stride;
+ if (process_block(ctx, dst, prev1, prev2, stride, tbl, size))
+ return AVERROR_INVALIDDATA;
+ if (process_block(ctx, dst + size, prev1 + size, prev2 + size,
+ stride, tbl, size))
+ return AVERROR_INVALIDDATA;
+ }
+ break;
+ case 0xFE:
+ if (bytestream2_get_bytes_left(&ctx->gb) < 1)
+ return AVERROR_INVALIDDATA;
+
+ t = bytestream2_get_byteu(&ctx->gb);
+ for (k = 0; k < size; k++)
+ memset(dst + k * stride, t, size);
+ break;
+ case 0xFD:
+ if (bytestream2_get_bytes_left(&ctx->gb) < 3)
+ return AVERROR_INVALIDDATA;
+
+ code = bytestream2_get_byteu(&ctx->gb);
+ pglyph = (size == 8) ? ctx->p8x8glyphs[code] : ctx->p4x4glyphs[code];
+ bytestream2_get_bufferu(&ctx->gb, colors, 2);
+
+ for (k = 0; k < size; k++)
+ for (t = 0; t < size; t++)
+ dst[t + k * stride] = colors[!*pglyph++];
+ break;
+ case 0xFC:
+ for (k = 0; k < size; k++)
+ memcpy(dst + k * stride, prev1 + k * stride, size);
+ break;
+ default:
+ k = bytestream2_tell(&ctx->gb);
+ bytestream2_seek(&ctx->gb, tbl + (code & 7), SEEK_SET);
+ t = bytestream2_get_byte(&ctx->gb);
+ bytestream2_seek(&ctx->gb, k, SEEK_SET);
+ for (k = 0; k < size; k++)
+ memset(dst + k * stride, t, size);
+ }
+ } else {
+ int mx = motion_vectors[code][0];
+ int my = motion_vectors[code][1];
+ for (k = 0; k < size; k++)
+ memcpy(dst + k * stride, prev2 + mx + (my + k) * stride, size);
+ }
+
+ return 0;
+}
+
+static int old_codec47(SANMVideoContext *ctx, int top,
+ int left, int width, int height)
+{
+ int i, j, seq, compr, new_rot, tbl_pos, skip;
+ int stride = ctx->pitch;
+ uint8_t *dst = ((uint8_t*)ctx->frm0) + left + top * stride;
+ uint8_t *prev1 = (uint8_t*)ctx->frm1;
+ uint8_t *prev2 = (uint8_t*)ctx->frm2;
+ uint32_t decoded_size;
+
+ tbl_pos = bytestream2_tell(&ctx->gb);
+ seq = bytestream2_get_le16(&ctx->gb);
+ compr = bytestream2_get_byte(&ctx->gb);
+ new_rot = bytestream2_get_byte(&ctx->gb);
+ skip = bytestream2_get_byte(&ctx->gb);
+ bytestream2_skip(&ctx->gb, 9);
+ decoded_size = bytestream2_get_le32(&ctx->gb);
+ bytestream2_skip(&ctx->gb, 8);
+
+ if (skip & 1)
+ bytestream2_skip(&ctx->gb, 0x8080);
+ if (!seq) {
+ ctx->prev_seq = -1;
+ memset(prev1, 0, ctx->height * stride);
+ memset(prev2, 0, ctx->height * stride);
+ }
+ av_dlog(ctx->avctx, "compression %d\n", compr);
+ switch (compr) {
+ case 0:
+ if (bytestream2_get_bytes_left(&ctx->gb) < width * height)
+ return AVERROR_INVALIDDATA;
+ for (j = 0; j < height; j++) {
+ for (i = 0; i < width; i++)
+ bytestream2_get_bufferu(&ctx->gb, dst, width);
+ dst += stride;
+ }
+ break;
+ case 1:
+ if (bytestream2_get_bytes_left(&ctx->gb) < ((width + 1) >> 1) * ((height + 1) >> 1))
+ return AVERROR_INVALIDDATA;
+ for (j = 0; j < height; j += 2) {
+ for (i = 0; i < width; i += 2) {
+ dst[i] = dst[i + 1] =
+ dst[stride + i] = dst[stride + i + 1] = bytestream2_get_byteu(&ctx->gb);
+ }
+ dst += stride * 2;
+ }
+ break;
+ case 2:
+ if (seq == ctx->prev_seq + 1) {
+ for (j = 0; j < height; j += 8) {
+ for (i = 0; i < width; i += 8) {
+ if (process_block(ctx, dst + i, prev1 + i, prev2 + i, stride,
+ tbl_pos + 8, 8))
+ return AVERROR_INVALIDDATA;
+ }
+ dst += stride * 8;
+ prev1 += stride * 8;
+ prev2 += stride * 8;
+ }
+ }
+ break;
+ case 3:
+ memcpy(ctx->frm0, ctx->frm2, ctx->pitch * ctx->height);
+ break;
+ case 4:
+ memcpy(ctx->frm0, ctx->frm1, ctx->pitch * ctx->height);
+ break;
+ case 5:
+ if (rle_decode(ctx, dst, decoded_size))
+ return AVERROR_INVALIDDATA;
+ break;
+ default:
+ av_log(ctx->avctx, AV_LOG_ERROR,
+ "subcodec 47 compression %d not implemented\n", compr);
+ return AVERROR_PATCHWELCOME;
+ }
+ if (seq == ctx->prev_seq + 1)
+ ctx->rotate_code = new_rot;
+ else
+ ctx->rotate_code = 0;
+ ctx->prev_seq = seq;
+
+ return 0;
+}
+
+static int process_frame_obj(SANMVideoContext *ctx)
+{
+ uint16_t codec, top, left, w, h;
+
+ codec = bytestream2_get_le16u(&ctx->gb);
+ left = bytestream2_get_le16u(&ctx->gb);
+ top = bytestream2_get_le16u(&ctx->gb);
+ w = bytestream2_get_le16u(&ctx->gb);
+ h = bytestream2_get_le16u(&ctx->gb);
+
+ if (ctx->width < left + w || ctx->height < top + h) {
+ ctx->avctx->width = FFMAX(left + w, ctx->width);
+ ctx->avctx->height = FFMAX(top + h, ctx->height);
+ init_sizes(ctx, left + w, top + h);
+ if (init_buffers(ctx)) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "error resizing buffers\n");
+ return AVERROR(ENOMEM);
+ }
+ }
+ bytestream2_skip(&ctx->gb, 4);
+
+ av_dlog(ctx->avctx, "subcodec %d\n", codec);
+ switch (codec) {
+ case 1:
+ case 3:
+ return old_codec1(ctx, top, left, w, h);
+ break;
+ case 37:
+ return old_codec37(ctx, top, left, w, h);
+ break;
+ case 47:
+ return old_codec47(ctx, top, left, w, h);
+ break;
+ default:
+ av_log_ask_for_sample(ctx->avctx, "unknown subcodec %d\n", codec);
+ return AVERROR_PATCHWELCOME;
+ }
+}
+
+static int decode_0(SANMVideoContext *ctx)
+{
+ uint16_t *frm = ctx->frm0;
+ int x, y;
+
+ if (bytestream2_get_bytes_left(&ctx->gb) < ctx->width * ctx->height * 2) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "insufficient data for raw frame\n");
+ return AVERROR_INVALIDDATA;
+ }
+ for (y = 0; y < ctx->height; y++) {
+ for (x = 0; x < ctx->width; x++)
+ frm[x] = bytestream2_get_le16u(&ctx->gb);
+ frm += ctx->pitch;
+ }
+ return 0;
+}
+
+static int decode_nop(SANMVideoContext *ctx)
+{
+ av_log_ask_for_sample(ctx->avctx, "unknown/unsupported compression type\n");
+ return AVERROR_PATCHWELCOME;
+}
+
+static void copy_block(uint16_t *pdest, uint16_t *psrc, int block_size, int pitch)
+{
+ uint8_t *dst = (uint8_t *)pdest;
+ uint8_t *src = (uint8_t *)psrc;
+ int stride = pitch * 2;
+
+ switch (block_size) {
+ case 2:
+ copy_block4(dst, src, stride, stride, 2);
+ break;
+ case 4:
+ copy_block8(dst, src, stride, stride, 4);
+ break;
+ case 8:
+ copy_block16(dst, src, stride, stride, 8);
+ break;
+ }
+}
+
+static void fill_block(uint16_t *pdest, uint16_t color, int block_size, int pitch)
+{
+ int x, y;
+
+ pitch -= block_size;
+ for (y = 0; y < block_size; y++, pdest += pitch)
+ for (x = 0; x < block_size; x++)
+ *pdest++ = color;
+}
+
+static int draw_glyph(SANMVideoContext *ctx, uint16_t *dst, int index, uint16_t fg_color,
+ uint16_t bg_color, int block_size, int pitch)
+{
+ int8_t *pglyph;
+ uint16_t colors[2] = { fg_color, bg_color };
+ int x, y;
+
+ if (index >= NGLYPHS) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "ignoring nonexistent glyph #%u\n", index);
+ return AVERROR_INVALIDDATA;
+ }
+
+ pglyph = block_size == 8 ? ctx->p8x8glyphs[index] : ctx->p4x4glyphs[index];
+ pitch -= block_size;
+
+ for (y = 0; y < block_size; y++, dst += pitch)
+ for (x = 0; x < block_size; x++)
+ *dst++ = colors[*pglyph++];
+ return 0;
+}
+
+static int opcode_0xf7(SANMVideoContext *ctx, int cx, int cy, int block_size, int pitch)
+{
+ uint16_t *dst = ctx->frm0 + cx + cy * ctx->pitch;
+
+ if (block_size == 2) {
+ uint32_t indices;
+
+ if (bytestream2_get_bytes_left(&ctx->gb) < 4)
+ return AVERROR_INVALIDDATA;
+
+ indices = bytestream2_get_le32u(&ctx->gb);
+ dst[0] = ctx->codebook[indices & 0xFF]; indices >>= 8;
+ dst[1] = ctx->codebook[indices & 0xFF]; indices >>= 8;
+ dst[pitch] = ctx->codebook[indices & 0xFF]; indices >>= 8;
+ dst[pitch + 1] = ctx->codebook[indices & 0xFF];
+ } else {
+ uint16_t fgcolor, bgcolor;
+ int glyph;
+
+ if (bytestream2_get_bytes_left(&ctx->gb) < 3)
+ return AVERROR_INVALIDDATA;
+
+ glyph = bytestream2_get_byteu(&ctx->gb);
+ bgcolor = ctx->codebook[bytestream2_get_byteu(&ctx->gb)];
+ fgcolor = ctx->codebook[bytestream2_get_byteu(&ctx->gb)];
+
+ draw_glyph(ctx, dst, glyph, fgcolor, bgcolor, block_size, pitch);
+ }
+ return 0;
+}
+
+static int opcode_0xf8(SANMVideoContext *ctx, int cx, int cy, int block_size, int pitch)
+{
+ uint16_t *dst = ctx->frm0 + cx + cy * ctx->pitch;
+
+ if (block_size == 2) {
+ if (bytestream2_get_bytes_left(&ctx->gb) < 8)
+ return AVERROR_INVALIDDATA;
+
+ dst[0] = bytestream2_get_le16u(&ctx->gb);
+ dst[1] = bytestream2_get_le16u(&ctx->gb);
+ dst[pitch] = bytestream2_get_le16u(&ctx->gb);
+ dst[pitch + 1] = bytestream2_get_le16u(&ctx->gb);
+ } else {
+ uint16_t fgcolor, bgcolor;
+ int glyph;
+
+ if (bytestream2_get_bytes_left(&ctx->gb) < 5)
+ return AVERROR_INVALIDDATA;
+
+ glyph = bytestream2_get_byteu(&ctx->gb);
+ bgcolor = bytestream2_get_le16u(&ctx->gb);
+ fgcolor = bytestream2_get_le16u(&ctx->gb);
+
+ draw_glyph(ctx, dst, glyph, fgcolor, bgcolor, block_size, pitch);
+ }
+ return 0;
+}
+
+static int good_mvec(SANMVideoContext *ctx, int cx, int cy, int mx, int my,
+ int block_size)
+{
+ int start_pos = cx + mx + (cy + my) * ctx->pitch;
+ int end_pos = start_pos + (block_size - 1) * (ctx->pitch + 1);
+
+ int good = start_pos >= 0 && end_pos < (ctx->buf_size >> 1);
+
+ if (!good) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "ignoring invalid motion vector (%i, %i)->(%u, %u), block size = %u\n",
+ cx + mx, cy + my, cx, cy, block_size);
+ }
+
+ return good;
+}
+
+static int codec2subblock(SANMVideoContext *ctx, int cx, int cy, int blk_size)
+{
+ int16_t mx, my, index;
+ int opcode;
+
+ if (bytestream2_get_bytes_left(&ctx->gb) < 1)
+ return AVERROR_INVALIDDATA;
+
+ opcode = bytestream2_get_byteu(&ctx->gb);
+
+ av_dlog(ctx->avctx, "opcode 0x%0X cx %d cy %d blk %d\n", opcode, cx, cy, blk_size);
+ switch (opcode) {
+ default:
+ mx = motion_vectors[opcode][0];
+ my = motion_vectors[opcode][1];
+
+ if (good_mvec(ctx, cx, cy, mx, my, blk_size)) {
+ copy_block(ctx->frm0 + cx + ctx->pitch * cy,
+ ctx->frm2 + cx + mx + ctx->pitch * (cy + my),
+ blk_size, ctx->pitch);
+ }
+ break;
+ case 0xF5:
+ if (bytestream2_get_bytes_left(&ctx->gb) < 2)
+ return AVERROR_INVALIDDATA;
+ index = bytestream2_get_le16u(&ctx->gb);
+
+ mx = index % ctx->width;
+ my = index / ctx->width;
+
+ if (good_mvec(ctx, cx, cy, mx, my, blk_size)) {
+ copy_block(ctx->frm0 + cx + ctx->pitch * cy,
+ ctx->frm2 + cx + mx + ctx->pitch * (cy + my),
+ blk_size, ctx->pitch);
+ }
+ break;
+ case 0xF6:
+ copy_block(ctx->frm0 + cx + ctx->pitch * cy,
+ ctx->frm1 + cx + ctx->pitch * cy,
+ blk_size, ctx->pitch);
+ break;
+ case 0xF7:
+ opcode_0xf7(ctx, cx, cy, blk_size, ctx->pitch);
+ break;
+
+ case 0xF8:
+ opcode_0xf8(ctx, cx, cy, blk_size, ctx->pitch);
+ break;
+ case 0xF9:
+ case 0xFA:
+ case 0xFB:
+ case 0xFC:
+ fill_block(ctx->frm0 + cx + cy * ctx->pitch,
+ ctx->small_codebook[opcode - 0xf9], blk_size, ctx->pitch);
+ break;
+ case 0xFD:
+ if (bytestream2_get_bytes_left(&ctx->gb) < 1)
+ return AVERROR_INVALIDDATA;
+ fill_block(ctx->frm0 + cx + cy * ctx->pitch,
+ ctx->codebook[bytestream2_get_byteu(&ctx->gb)], blk_size, ctx->pitch);
+ break;
+ case 0xFE:
+ if (bytestream2_get_bytes_left(&ctx->gb) < 2)
+ return AVERROR_INVALIDDATA;
+ fill_block(ctx->frm0 + cx + cy * ctx->pitch,
+ bytestream2_get_le16u(&ctx->gb), blk_size, ctx->pitch);
+ break;
+ case 0xFF:
+ if (blk_size == 2) {
+ opcode_0xf8(ctx, cx, cy, blk_size, ctx->pitch);
+ } else {
+ blk_size >>= 1;
+ if (codec2subblock(ctx, cx , cy , blk_size))
+ return AVERROR_INVALIDDATA;
+ if (codec2subblock(ctx, cx + blk_size, cy , blk_size))
+ return AVERROR_INVALIDDATA;
+ if (codec2subblock(ctx, cx , cy + blk_size, blk_size))
+ return AVERROR_INVALIDDATA;
+ if (codec2subblock(ctx, cx + blk_size, cy + blk_size, blk_size))
+ return AVERROR_INVALIDDATA;
+ }
+ break;
+ }
+ return 0;
+}
+
+static int decode_2(SANMVideoContext *ctx)
+{
+ int cx, cy, ret;
+
+ for (cy = 0; cy < ctx->aligned_height; cy += 8) {
+ for (cx = 0; cx < ctx->aligned_width; cx += 8) {
+ if (ret = codec2subblock(ctx, cx, cy, 8))
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int decode_3(SANMVideoContext *ctx)
+{
+ memcpy(ctx->frm0, ctx->frm2, ctx->frm2_size);
+ return 0;
+}
+
+static int decode_4(SANMVideoContext *ctx)
+{
+ memcpy(ctx->frm0, ctx->frm1, ctx->frm1_size);
+ return 0;
+}
+
+static int decode_5(SANMVideoContext *ctx)
+{
+#if HAVE_BIGENDIAN
+ uint16_t *frm;
+ int npixels;
+#endif
+ uint8_t *dst = (uint8_t*)ctx->frm0;
+
+ if (rle_decode(ctx, dst, ctx->buf_size))
+ return AVERROR_INVALIDDATA;
+
+#if HAVE_BIGENDIAN
+ npixels = ctx->npixels;
+ frm = ctx->frm0;
+ while (npixels--)
+ *frm++ = av_bswap16(*frm);
+#endif
+
+ return 0;
+}
+
+static int decode_6(SANMVideoContext *ctx)
+{
+ int npixels = ctx->npixels;
+ uint16_t *frm = ctx->frm0;
+
+ if (bytestream2_get_bytes_left(&ctx->gb) < npixels) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "insufficient data for frame\n");
+ return AVERROR_INVALIDDATA;
+ }
+ while (npixels--)
+ *frm++ = ctx->codebook[bytestream2_get_byteu(&ctx->gb)];
+
+ return 0;
+}
+
+static int decode_8(SANMVideoContext *ctx)
+{
+ uint16_t *pdest = ctx->frm0;
+ uint8_t *rsrc;
+ long npixels = ctx->npixels;
+
+ av_fast_malloc(&ctx->rle_buf, &ctx->rle_buf_size, npixels);
+ if (!ctx->rle_buf) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "RLE buffer allocation failed\n");
+ return AVERROR(ENOMEM);
+ }
+ rsrc = ctx->rle_buf;
+
+ if (rle_decode(ctx, rsrc, npixels))
+ return AVERROR_INVALIDDATA;
+
+ while (npixels--)
+ *pdest++ = ctx->codebook[*rsrc++];
+
+ return 0;
+}
+
+typedef int (*frm_decoder)(SANMVideoContext *ctx);
+
+static const frm_decoder v1_decoders[] = {
+ decode_0, decode_nop, decode_2, decode_3, decode_4, decode_5,
+ decode_6, decode_nop, decode_8
+};
+
+static int read_frame_header(SANMVideoContext *ctx, SANMFrameHeader *hdr)
+{
+ int i, ret;
+
+ if ((ret = bytestream2_get_bytes_left(&ctx->gb)) < 560) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "too short input frame (%d bytes)\n",
+ ret);
+ return AVERROR_INVALIDDATA;
+ }
+ bytestream2_skip(&ctx->gb, 8); // skip pad
+
+ hdr->width = bytestream2_get_le32u(&ctx->gb);
+ hdr->height = bytestream2_get_le32u(&ctx->gb);
+
+ if (hdr->width != ctx->width || hdr->height != ctx->height) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "variable size frames are not implemented\n");
+ return AVERROR_PATCHWELCOME;
+ }
+
+ hdr->seq_num = bytestream2_get_le16u(&ctx->gb);
+ hdr->codec = bytestream2_get_byteu(&ctx->gb);
+ hdr->rotate_code = bytestream2_get_byteu(&ctx->gb);
+
+ bytestream2_skip(&ctx->gb, 4); // skip pad
+
+ for (i = 0; i < 4; i++)
+ ctx->small_codebook[i] = bytestream2_get_le16u(&ctx->gb);
+ hdr->bg_color = bytestream2_get_le16u(&ctx->gb);
+
+ bytestream2_skip(&ctx->gb, 2); // skip pad
+
+ hdr->rle_output_size = bytestream2_get_le32u(&ctx->gb);
+ for (i = 0; i < 256; i++)
+ ctx->codebook[i] = bytestream2_get_le16u(&ctx->gb);
+
+ bytestream2_skip(&ctx->gb, 8); // skip pad
+
+ av_dlog(ctx->avctx, "subcodec %d\n", hdr->codec);
+ return 0;
+}
+
+static void fill_frame(uint16_t *pbuf, int buf_size, uint16_t color)
+{
+ while (buf_size--)
+ *pbuf++ = color;
+}
+
+static int copy_output(SANMVideoContext *ctx, SANMFrameHeader *hdr)
+{
+ uint8_t *dst;
+ const uint8_t *src = (uint8_t*) ctx->frm0;
+ int ret, dstpitch, height = ctx->height;
+ int srcpitch = ctx->pitch * (hdr ? sizeof(ctx->frm0[0]) : 1);
+
++ if ((ret = ff_get_buffer(ctx->avctx, ctx->output)) < 0) {
+ av_log(ctx->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+
+ dst = ctx->output->data[0];
+ dstpitch = ctx->output->linesize[0];
+
+ while (height--) {
+ memcpy(dst, src, srcpitch);
+ src += srcpitch;
+ dst += dstpitch;
+ }
+
+ return 0;
+}
+
+static int decode_frame(AVCodecContext *avctx, void *data,
+ int *got_frame_ptr, AVPacket *pkt)
+{
+ SANMVideoContext *ctx = avctx->priv_data;
+ int i, ret;
+
+ bytestream2_init(&ctx->gb, pkt->data, pkt->size);
+ if (ctx->output->data[0])
+ avctx->release_buffer(avctx, ctx->output);
+
+ if (!ctx->version) {
+ int to_store = 0;
+
+ while (bytestream2_get_bytes_left(&ctx->gb) >= 8) {
+ uint32_t sig, size;
+ int pos;
+
+ sig = bytestream2_get_be32u(&ctx->gb);
+ size = bytestream2_get_be32u(&ctx->gb);
+ pos = bytestream2_tell(&ctx->gb);
+
+ if (bytestream2_get_bytes_left(&ctx->gb) < size) {
+ av_log(avctx, AV_LOG_ERROR, "incorrect chunk size %d\n", size);
+ break;
+ }
+ switch (sig) {
+ case MKBETAG('N', 'P', 'A', 'L'):
+ if (size != 256 * 3) {
+ av_log(avctx, AV_LOG_ERROR, "incorrect palette block size %d\n",
+ size);
+ return AVERROR_INVALIDDATA;
+ }
+ for (i = 0; i < 256; i++)
+ ctx->pal[i] = 0xFFU << 24 | bytestream2_get_be24u(&ctx->gb);
+ break;
+ case MKBETAG('F', 'O', 'B', 'J'):
+ if (size < 16)
+ return AVERROR_INVALIDDATA;
+ if (ret = process_frame_obj(ctx))
+ return ret;
+ break;
+ case MKBETAG('X', 'P', 'A', 'L'):
+ if (size == 6 || size == 4) {
+ uint8_t tmp[3];
+ int j;
+
+ for (i = 0; i < 256; i++) {
+ for (j = 0; j < 3; j++) {
+ int t = (ctx->pal[i] >> (16 - j * 8)) & 0xFF;
+ tmp[j] = av_clip_uint8((t * 129 + ctx->delta_pal[i * 3 + j]) >> 7);
+ }
+ ctx->pal[i] = 0xFFU << 24 | AV_RB24(tmp);
+ }
+ } else {
+ if (size < 768 * 2 + 4) {
+ av_log(avctx, AV_LOG_ERROR, "incorrect palette change block size %d\n",
+ size);
+ return AVERROR_INVALIDDATA;
+ }
+ bytestream2_skipu(&ctx->gb, 4);
+ for (i = 0; i < 768; i++)
+ ctx->delta_pal[i] = bytestream2_get_le16u(&ctx->gb);
+ if (size >= 768 * 5 + 4) {
+ for (i = 0; i < 256; i++)
+ ctx->pal[i] = 0xFFU << 24 | bytestream2_get_be24u(&ctx->gb);
+ } else {
+ memset(ctx->pal, 0, sizeof(ctx->pal));
+ }
+ }
+ break;
+ case MKBETAG('S', 'T', 'O', 'R'):
+ to_store = 1;
+ break;
+ case MKBETAG('F', 'T', 'C', 'H'):
+ memcpy(ctx->frm0, ctx->stored_frame, ctx->buf_size);
+ break;
+ default:
+ bytestream2_skip(&ctx->gb, size);
+ av_log(avctx, AV_LOG_DEBUG, "unknown/unsupported chunk %x\n", sig);
+ break;
+ }
+
+ bytestream2_seek(&ctx->gb, pos + size, SEEK_SET);
+ if (size & 1)
+ bytestream2_skip(&ctx->gb, 1);
+ }
+ if (to_store)
+ memcpy(ctx->stored_frame, ctx->frm0, ctx->buf_size);
+ if ((ret = copy_output(ctx, NULL)))
+ return ret;
+ memcpy(ctx->output->data[1], ctx->pal, 1024);
+ } else {
+ SANMFrameHeader header;
+
+ if ((ret = read_frame_header(ctx, &header)))
+ return ret;
+
+ ctx->rotate_code = header.rotate_code;
+ if ((ctx->output->key_frame = !header.seq_num)) {
+ ctx->output->pict_type = AV_PICTURE_TYPE_I;
+ fill_frame(ctx->frm1, ctx->npixels, header.bg_color);
+ fill_frame(ctx->frm2, ctx->npixels, header.bg_color);
+ } else {
+ ctx->output->pict_type = AV_PICTURE_TYPE_P;
+ }
+
+ if (header.codec < FF_ARRAY_ELEMS(v1_decoders)) {
+ if ((ret = v1_decoders[header.codec](ctx))) {
+ av_log(avctx, AV_LOG_ERROR,
+ "subcodec %d: error decoding frame\n", header.codec);
+ return ret;
+ }
+ } else {
+ av_log_ask_for_sample(avctx, "subcodec %d is not implemented\n",
+ header.codec);
+ return AVERROR_PATCHWELCOME;
+ }
+
+ if ((ret = copy_output(ctx, &header)))
+ return ret;
+ }
+ if (ctx->rotate_code)
+ rotate_bufs(ctx, ctx->rotate_code);
+
+ *got_frame_ptr = 1;
+ *(AVFrame*)data = *ctx->output;
+
+ return pkt->size;
+}
+
+AVCodec ff_sanm_decoder = {
+ .name = "sanm",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_SANM,
+ .priv_data_size = sizeof(SANMVideoContext),
+ .init = decode_init,
+ .close = decode_end,
+ .decode = decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("LucasArts SMUSH video"),
+};
*/
#include "libavutil/imgutils.h"
+#include "libavutil/avassert.h"
#include "avcodec.h"
#include "bytestream.h"
+ #include "internal.h"
#include "sgi.h"
typedef struct SgiState {
/* if this is the last channel in the block, output the samples */
s->cur_chan++;
if (s->cur_chan == s->channels) {
+ uint8_t *samples_u8;
+ int16_t *samples_s16;
+ int chan;
+
/* get output buffer */
s->frame.nb_samples = s->blocksize;
- if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
+ if ((ret = ff_get_buffer(avctx, &s->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
#include "avcodec.h"
#include "dsputil.h"
#include "dwt.h"
++#include "internal.h"
#include "snow.h"
#include "snowdata.h"
int ff_snow_common_init_after_header(AVCodecContext *avctx) {
SnowContext *s = avctx->priv_data;
int plane_index, level, orientation;
- if ((ret = s->avctx->get_buffer(s->avctx, &s->mconly_picture)) < 0) {
+ int ret, emu_buf_size;
+
+ if(!s->scratchbuf) {
++ if ((ret = ff_get_buffer(s->avctx, &s->mconly_picture)) < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+ FF_ALLOCZ_OR_GOTO(avctx, s->scratchbuf, FFMAX(s->mconly_picture.linesize[0], 2*avctx->width+256)*7*MB_SIZE, fail);
+ emu_buf_size = FFMAX(s->mconly_picture.linesize[0], 2*avctx->width+256) * (2 * MB_SIZE + HTAPS_MAX - 1);
+ FF_ALLOC_OR_GOTO(avctx, s->emu_edge_buffer, emu_buf_size, fail);
+ }
+
+ if(s->mconly_picture.format != avctx->pix_fmt) {
+ av_log(avctx, AV_LOG_ERROR, "pixel format changed\n");
+ return AVERROR_INVALIDDATA;
+ }
for(plane_index=0; plane_index<3; plane_index++){
int w= s->avctx->width;
}
}
- s->current_picture.reference= 1;
- if(s->ff_get_buffer(s->avctx, &s->current_picture) < 0){
+ s->current_picture.reference= 3;
- if(s->avctx->get_buffer(s->avctx, &s->current_picture) < 0){
++ if(ff_get_buffer(s->avctx, &s->current_picture) < 0){
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
ff_set_cmp(&s->dsp, s->dsp.me_cmp, s->avctx->me_cmp);
ff_set_cmp(&s->dsp, s->dsp.me_sub_cmp, s->avctx->me_sub_cmp);
- s->avctx->get_buffer(s->avctx, &s->input_picture);
- s->ff_get_buffer(s->avctx, &s->input_picture);
++ ff_get_buffer(s->avctx, &s->input_picture);
if(s->avctx->me_method == ME_ITER){
int i;
--- /dev/null
- if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
+/*
+ * Simple free lossless/lossy audio codec
+ * Copyright (c) 2004 Alex Beregszaszi
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "avcodec.h"
+#include "get_bits.h"
+#include "golomb.h"
+#include "internal.h"
+
+/**
+ * @file
+ * Simple free lossless/lossy audio codec
+ * Based on Paul Francis Harrison's Bonk (http://www.logarithmic.net/pfh/bonk)
+ * Written and designed by Alex Beregszaszi
+ *
+ * TODO:
+ * - CABAC put/get_symbol
+ * - independent quantizer for channels
+ * - >2 channels support
+ * - more decorrelation types
+ * - more tap_quant tests
+ * - selectable intlist writers/readers (bonk-style, golomb, cabac)
+ */
+
+#define MAX_CHANNELS 2
+
+#define MID_SIDE 0
+#define LEFT_SIDE 1
+#define RIGHT_SIDE 2
+
+typedef struct SonicContext {
+ AVFrame frame;
+ int lossless, decorrelation;
+
+ int num_taps, downsampling;
+ double quantization;
+
+ int channels, samplerate, block_align, frame_size;
+
+ int *tap_quant;
+ int *int_samples;
+ int *coded_samples[MAX_CHANNELS];
+
+ // for encoding
+ int *tail;
+ int tail_size;
+ int *window;
+ int window_size;
+
+ // for decoding
+ int *predictor_k;
+ int *predictor_state[MAX_CHANNELS];
+} SonicContext;
+
+#define LATTICE_SHIFT 10
+#define SAMPLE_SHIFT 4
+#define LATTICE_FACTOR (1 << LATTICE_SHIFT)
+#define SAMPLE_FACTOR (1 << SAMPLE_SHIFT)
+
+#define BASE_QUANT 0.6
+#define RATE_VARIATION 3.0
+
+static inline int divide(int a, int b)
+{
+ if (a < 0)
+ return -( (-a + b/2)/b );
+ else
+ return (a + b/2)/b;
+}
+
+static inline int shift(int a,int b)
+{
+ return (a+(1<<(b-1))) >> b;
+}
+
+static inline int shift_down(int a,int b)
+{
+ return (a>>b)+((a<0)?1:0);
+}
+
+#if 1
+static inline int intlist_write(PutBitContext *pb, int *buf, int entries, int base_2_part)
+{
+ int i;
+
+ for (i = 0; i < entries; i++)
+ set_se_golomb(pb, buf[i]);
+
+ return 1;
+}
+
+static inline int intlist_read(GetBitContext *gb, int *buf, int entries, int base_2_part)
+{
+ int i;
+
+ for (i = 0; i < entries; i++)
+ buf[i] = get_se_golomb(gb);
+
+ return 1;
+}
+
+#else
+
+#define ADAPT_LEVEL 8
+
+static int bits_to_store(uint64_t x)
+{
+ int res = 0;
+
+ while(x)
+ {
+ res++;
+ x >>= 1;
+ }
+ return res;
+}
+
+static void write_uint_max(PutBitContext *pb, unsigned int value, unsigned int max)
+{
+ int i, bits;
+
+ if (!max)
+ return;
+
+ bits = bits_to_store(max);
+
+ for (i = 0; i < bits-1; i++)
+ put_bits(pb, 1, value & (1 << i));
+
+ if ( (value | (1 << (bits-1))) <= max)
+ put_bits(pb, 1, value & (1 << (bits-1)));
+}
+
+static unsigned int read_uint_max(GetBitContext *gb, int max)
+{
+ int i, bits, value = 0;
+
+ if (!max)
+ return 0;
+
+ bits = bits_to_store(max);
+
+ for (i = 0; i < bits-1; i++)
+ if (get_bits1(gb))
+ value += 1 << i;
+
+ if ( (value | (1<<(bits-1))) <= max)
+ if (get_bits1(gb))
+ value += 1 << (bits-1);
+
+ return value;
+}
+
+static int intlist_write(PutBitContext *pb, int *buf, int entries, int base_2_part)
+{
+ int i, j, x = 0, low_bits = 0, max = 0;
+ int step = 256, pos = 0, dominant = 0, any = 0;
+ int *copy, *bits;
+
+ copy = av_mallocz(4* entries);
+ if (!copy)
+ return -1;
+
+ if (base_2_part)
+ {
+ int energy = 0;
+
+ for (i = 0; i < entries; i++)
+ energy += abs(buf[i]);
+
+ low_bits = bits_to_store(energy / (entries * 2));
+ if (low_bits > 15)
+ low_bits = 15;
+
+ put_bits(pb, 4, low_bits);
+ }
+
+ for (i = 0; i < entries; i++)
+ {
+ put_bits(pb, low_bits, abs(buf[i]));
+ copy[i] = abs(buf[i]) >> low_bits;
+ if (copy[i] > max)
+ max = abs(copy[i]);
+ }
+
+ bits = av_mallocz(4* entries*max);
+ if (!bits)
+ {
+// av_free(copy);
+ return -1;
+ }
+
+ for (i = 0; i <= max; i++)
+ {
+ for (j = 0; j < entries; j++)
+ if (copy[j] >= i)
+ bits[x++] = copy[j] > i;
+ }
+
+ // store bitstream
+ while (pos < x)
+ {
+ int steplet = step >> 8;
+
+ if (pos + steplet > x)
+ steplet = x - pos;
+
+ for (i = 0; i < steplet; i++)
+ if (bits[i+pos] != dominant)
+ any = 1;
+
+ put_bits(pb, 1, any);
+
+ if (!any)
+ {
+ pos += steplet;
+ step += step / ADAPT_LEVEL;
+ }
+ else
+ {
+ int interloper = 0;
+
+ while (((pos + interloper) < x) && (bits[pos + interloper] == dominant))
+ interloper++;
+
+ // note change
+ write_uint_max(pb, interloper, (step >> 8) - 1);
+
+ pos += interloper + 1;
+ step -= step / ADAPT_LEVEL;
+ }
+
+ if (step < 256)
+ {
+ step = 65536 / step;
+ dominant = !dominant;
+ }
+ }
+
+ // store signs
+ for (i = 0; i < entries; i++)
+ if (buf[i])
+ put_bits(pb, 1, buf[i] < 0);
+
+// av_free(bits);
+// av_free(copy);
+
+ return 0;
+}
+
+static int intlist_read(GetBitContext *gb, int *buf, int entries, int base_2_part)
+{
+ int i, low_bits = 0, x = 0;
+ int n_zeros = 0, step = 256, dominant = 0;
+ int pos = 0, level = 0;
+ int *bits = av_mallocz(4* entries);
+
+ if (!bits)
+ return -1;
+
+ if (base_2_part)
+ {
+ low_bits = get_bits(gb, 4);
+
+ if (low_bits)
+ for (i = 0; i < entries; i++)
+ buf[i] = get_bits(gb, low_bits);
+ }
+
+// av_log(NULL, AV_LOG_INFO, "entries: %d, low bits: %d\n", entries, low_bits);
+
+ while (n_zeros < entries)
+ {
+ int steplet = step >> 8;
+
+ if (!get_bits1(gb))
+ {
+ for (i = 0; i < steplet; i++)
+ bits[x++] = dominant;
+
+ if (!dominant)
+ n_zeros += steplet;
+
+ step += step / ADAPT_LEVEL;
+ }
+ else
+ {
+ int actual_run = read_uint_max(gb, steplet-1);
+
+// av_log(NULL, AV_LOG_INFO, "actual run: %d\n", actual_run);
+
+ for (i = 0; i < actual_run; i++)
+ bits[x++] = dominant;
+
+ bits[x++] = !dominant;
+
+ if (!dominant)
+ n_zeros += actual_run;
+ else
+ n_zeros++;
+
+ step -= step / ADAPT_LEVEL;
+ }
+
+ if (step < 256)
+ {
+ step = 65536 / step;
+ dominant = !dominant;
+ }
+ }
+
+ // reconstruct unsigned values
+ n_zeros = 0;
+ for (i = 0; n_zeros < entries; i++)
+ {
+ while(1)
+ {
+ if (pos >= entries)
+ {
+ pos = 0;
+ level += 1 << low_bits;
+ }
+
+ if (buf[pos] >= level)
+ break;
+
+ pos++;
+ }
+
+ if (bits[i])
+ buf[pos] += 1 << low_bits;
+ else
+ n_zeros++;
+
+ pos++;
+ }
+// av_free(bits);
+
+ // read signs
+ for (i = 0; i < entries; i++)
+ if (buf[i] && get_bits1(gb))
+ buf[i] = -buf[i];
+
+// av_log(NULL, AV_LOG_INFO, "zeros: %d pos: %d\n", n_zeros, pos);
+
+ return 0;
+}
+#endif
+
+static void predictor_init_state(int *k, int *state, int order)
+{
+ int i;
+
+ for (i = order-2; i >= 0; i--)
+ {
+ int j, p, x = state[i];
+
+ for (j = 0, p = i+1; p < order; j++,p++)
+ {
+ int tmp = x + shift_down(k[j] * state[p], LATTICE_SHIFT);
+ state[p] += shift_down(k[j]*x, LATTICE_SHIFT);
+ x = tmp;
+ }
+ }
+}
+
+static int predictor_calc_error(int *k, int *state, int order, int error)
+{
+ int i, x = error - shift_down(k[order-1] * state[order-1], LATTICE_SHIFT);
+
+#if 1
+ int *k_ptr = &(k[order-2]),
+ *state_ptr = &(state[order-2]);
+ for (i = order-2; i >= 0; i--, k_ptr--, state_ptr--)
+ {
+ int k_value = *k_ptr, state_value = *state_ptr;
+ x -= shift_down(k_value * state_value, LATTICE_SHIFT);
+ state_ptr[1] = state_value + shift_down(k_value * x, LATTICE_SHIFT);
+ }
+#else
+ for (i = order-2; i >= 0; i--)
+ {
+ x -= shift_down(k[i] * state[i], LATTICE_SHIFT);
+ state[i+1] = state[i] + shift_down(k[i] * x, LATTICE_SHIFT);
+ }
+#endif
+
+ // don't drift too far, to avoid overflows
+ if (x > (SAMPLE_FACTOR<<16)) x = (SAMPLE_FACTOR<<16);
+ if (x < -(SAMPLE_FACTOR<<16)) x = -(SAMPLE_FACTOR<<16);
+
+ state[0] = x;
+
+ return x;
+}
+
+#if CONFIG_SONIC_ENCODER || CONFIG_SONIC_LS_ENCODER
+// Heavily modified Levinson-Durbin algorithm which
+// copes better with quantization, and calculates the
+// actual whitened result as it goes.
+
+static void modified_levinson_durbin(int *window, int window_entries,
+ int *out, int out_entries, int channels, int *tap_quant)
+{
+ int i;
+ int *state = av_mallocz(4* window_entries);
+
+ memcpy(state, window, 4* window_entries);
+
+ for (i = 0; i < out_entries; i++)
+ {
+ int step = (i+1)*channels, k, j;
+ double xx = 0.0, xy = 0.0;
+#if 1
+ int *x_ptr = &(window[step]), *state_ptr = &(state[0]);
+ j = window_entries - step;
+ for (;j>=0;j--,x_ptr++,state_ptr++)
+ {
+ double x_value = *x_ptr, state_value = *state_ptr;
+ xx += state_value*state_value;
+ xy += x_value*state_value;
+ }
+#else
+ for (j = 0; j <= (window_entries - step); j++);
+ {
+ double stepval = window[step+j], stateval = window[j];
+// xx += (double)window[j]*(double)window[j];
+// xy += (double)window[step+j]*(double)window[j];
+ xx += stateval*stateval;
+ xy += stepval*stateval;
+ }
+#endif
+ if (xx == 0.0)
+ k = 0;
+ else
+ k = (int)(floor(-xy/xx * (double)LATTICE_FACTOR / (double)(tap_quant[i]) + 0.5));
+
+ if (k > (LATTICE_FACTOR/tap_quant[i]))
+ k = LATTICE_FACTOR/tap_quant[i];
+ if (-k > (LATTICE_FACTOR/tap_quant[i]))
+ k = -(LATTICE_FACTOR/tap_quant[i]);
+
+ out[i] = k;
+ k *= tap_quant[i];
+
+#if 1
+ x_ptr = &(window[step]);
+ state_ptr = &(state[0]);
+ j = window_entries - step;
+ for (;j>=0;j--,x_ptr++,state_ptr++)
+ {
+ int x_value = *x_ptr, state_value = *state_ptr;
+ *x_ptr = x_value + shift_down(k*state_value,LATTICE_SHIFT);
+ *state_ptr = state_value + shift_down(k*x_value, LATTICE_SHIFT);
+ }
+#else
+ for (j=0; j <= (window_entries - step); j++)
+ {
+ int stepval = window[step+j], stateval=state[j];
+ window[step+j] += shift_down(k * stateval, LATTICE_SHIFT);
+ state[j] += shift_down(k * stepval, LATTICE_SHIFT);
+ }
+#endif
+ }
+
+ av_free(state);
+}
+
+static inline int code_samplerate(int samplerate)
+{
+ switch (samplerate)
+ {
+ case 44100: return 0;
+ case 22050: return 1;
+ case 11025: return 2;
+ case 96000: return 3;
+ case 48000: return 4;
+ case 32000: return 5;
+ case 24000: return 6;
+ case 16000: return 7;
+ case 8000: return 8;
+ }
+ return -1;
+}
+
+static av_cold int sonic_encode_init(AVCodecContext *avctx)
+{
+ SonicContext *s = avctx->priv_data;
+ PutBitContext pb;
+ int i, version = 0;
+
+ if (avctx->channels > MAX_CHANNELS)
+ {
+ av_log(avctx, AV_LOG_ERROR, "Only mono and stereo streams are supported by now\n");
+ return -1; /* only stereo or mono for now */
+ }
+
+ if (avctx->channels == 2)
+ s->decorrelation = MID_SIDE;
+
+ if (avctx->codec->id == AV_CODEC_ID_SONIC_LS)
+ {
+ s->lossless = 1;
+ s->num_taps = 32;
+ s->downsampling = 1;
+ s->quantization = 0.0;
+ }
+ else
+ {
+ s->num_taps = 128;
+ s->downsampling = 2;
+ s->quantization = 1.0;
+ }
+
+ // max tap 2048
+ if ((s->num_taps < 32) || (s->num_taps > 1024) ||
+ ((s->num_taps>>5)<<5 != s->num_taps))
+ {
+ av_log(avctx, AV_LOG_ERROR, "Invalid number of taps\n");
+ return -1;
+ }
+
+ // generate taps
+ s->tap_quant = av_mallocz(4* s->num_taps);
+ for (i = 0; i < s->num_taps; i++)
+ s->tap_quant[i] = (int)(sqrt(i+1));
+
+ s->channels = avctx->channels;
+ s->samplerate = avctx->sample_rate;
+
+ s->block_align = (int)(2048.0*s->samplerate/44100)/s->downsampling;
+ s->frame_size = s->channels*s->block_align*s->downsampling;
+
+ s->tail_size = s->num_taps*s->channels;
+ s->tail = av_mallocz(4 * s->tail_size);
+ if (!s->tail)
+ return -1;
+
+ s->predictor_k = av_mallocz(4 * s->num_taps);
+ if (!s->predictor_k)
+ return -1;
+
+ for (i = 0; i < s->channels; i++)
+ {
+ s->coded_samples[i] = av_mallocz(4* s->block_align);
+ if (!s->coded_samples[i])
+ return -1;
+ }
+
+ s->int_samples = av_mallocz(4* s->frame_size);
+
+ s->window_size = ((2*s->tail_size)+s->frame_size);
+ s->window = av_mallocz(4* s->window_size);
+ if (!s->window)
+ return -1;
+
+ avctx->extradata = av_mallocz(16);
+ if (!avctx->extradata)
+ return -1;
+ init_put_bits(&pb, avctx->extradata, 16*8);
+
+ put_bits(&pb, 2, version); // version
+ if (version == 1)
+ {
+ put_bits(&pb, 2, s->channels);
+ put_bits(&pb, 4, code_samplerate(s->samplerate));
+ }
+ put_bits(&pb, 1, s->lossless);
+ if (!s->lossless)
+ put_bits(&pb, 3, SAMPLE_SHIFT); // XXX FIXME: sample precision
+ put_bits(&pb, 2, s->decorrelation);
+ put_bits(&pb, 2, s->downsampling);
+ put_bits(&pb, 5, (s->num_taps >> 5)-1); // 32..1024
+ put_bits(&pb, 1, 0); // XXX FIXME: no custom tap quant table
+
+ flush_put_bits(&pb);
+ avctx->extradata_size = put_bits_count(&pb)/8;
+
+ av_log(avctx, AV_LOG_INFO, "Sonic: ver: %d ls: %d dr: %d taps: %d block: %d frame: %d downsamp: %d\n",
+ version, s->lossless, s->decorrelation, s->num_taps, s->block_align, s->frame_size, s->downsampling);
+
+ avctx->coded_frame = avcodec_alloc_frame();
+ if (!avctx->coded_frame)
+ return AVERROR(ENOMEM);
+ avctx->coded_frame->key_frame = 1;
+ avctx->frame_size = s->block_align*s->downsampling;
+
+ return 0;
+}
+
+static av_cold int sonic_encode_close(AVCodecContext *avctx)
+{
+ SonicContext *s = avctx->priv_data;
+ int i;
+
+ av_freep(&avctx->coded_frame);
+
+ for (i = 0; i < s->channels; i++)
+ av_free(s->coded_samples[i]);
+
+ av_free(s->predictor_k);
+ av_free(s->tail);
+ av_free(s->tap_quant);
+ av_free(s->window);
+ av_free(s->int_samples);
+
+ return 0;
+}
+
+static int sonic_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+ const AVFrame *frame, int *got_packet_ptr)
+{
+ SonicContext *s = avctx->priv_data;
+ PutBitContext pb;
+ int i, j, ch, quant = 0, x = 0;
+ int ret;
+ const short *samples = (const int16_t*)frame->data[0];
+
+ if ((ret = ff_alloc_packet2(avctx, avpkt, s->frame_size * 5 + 1000)))
+ return ret;
+
+ init_put_bits(&pb, avpkt->data, avpkt->size);
+
+ // short -> internal
+ for (i = 0; i < s->frame_size; i++)
+ s->int_samples[i] = samples[i];
+
+ if (!s->lossless)
+ for (i = 0; i < s->frame_size; i++)
+ s->int_samples[i] = s->int_samples[i] << SAMPLE_SHIFT;
+
+ switch(s->decorrelation)
+ {
+ case MID_SIDE:
+ for (i = 0; i < s->frame_size; i += s->channels)
+ {
+ s->int_samples[i] += s->int_samples[i+1];
+ s->int_samples[i+1] -= shift(s->int_samples[i], 1);
+ }
+ break;
+ case LEFT_SIDE:
+ for (i = 0; i < s->frame_size; i += s->channels)
+ s->int_samples[i+1] -= s->int_samples[i];
+ break;
+ case RIGHT_SIDE:
+ for (i = 0; i < s->frame_size; i += s->channels)
+ s->int_samples[i] -= s->int_samples[i+1];
+ break;
+ }
+
+ memset(s->window, 0, 4* s->window_size);
+
+ for (i = 0; i < s->tail_size; i++)
+ s->window[x++] = s->tail[i];
+
+ for (i = 0; i < s->frame_size; i++)
+ s->window[x++] = s->int_samples[i];
+
+ for (i = 0; i < s->tail_size; i++)
+ s->window[x++] = 0;
+
+ for (i = 0; i < s->tail_size; i++)
+ s->tail[i] = s->int_samples[s->frame_size - s->tail_size + i];
+
+ // generate taps
+ modified_levinson_durbin(s->window, s->window_size,
+ s->predictor_k, s->num_taps, s->channels, s->tap_quant);
+ if (intlist_write(&pb, s->predictor_k, s->num_taps, 0) < 0)
+ return -1;
+
+ for (ch = 0; ch < s->channels; ch++)
+ {
+ x = s->tail_size+ch;
+ for (i = 0; i < s->block_align; i++)
+ {
+ int sum = 0;
+ for (j = 0; j < s->downsampling; j++, x += s->channels)
+ sum += s->window[x];
+ s->coded_samples[ch][i] = sum;
+ }
+ }
+
+ // simple rate control code
+ if (!s->lossless)
+ {
+ double energy1 = 0.0, energy2 = 0.0;
+ for (ch = 0; ch < s->channels; ch++)
+ {
+ for (i = 0; i < s->block_align; i++)
+ {
+ double sample = s->coded_samples[ch][i];
+ energy2 += sample*sample;
+ energy1 += fabs(sample);
+ }
+ }
+
+ energy2 = sqrt(energy2/(s->channels*s->block_align));
+ energy1 = sqrt(2.0)*energy1/(s->channels*s->block_align);
+
+ // increase bitrate when samples are like a gaussian distribution
+ // reduce bitrate when samples are like a two-tailed exponential distribution
+
+ if (energy2 > energy1)
+ energy2 += (energy2-energy1)*RATE_VARIATION;
+
+ quant = (int)(BASE_QUANT*s->quantization*energy2/SAMPLE_FACTOR);
+// av_log(avctx, AV_LOG_DEBUG, "quant: %d energy: %f / %f\n", quant, energy1, energy2);
+
+ if (quant < 1)
+ quant = 1;
+ if (quant > 65534)
+ quant = 65534;
+
+ set_ue_golomb(&pb, quant);
+
+ quant *= SAMPLE_FACTOR;
+ }
+
+ // write out coded samples
+ for (ch = 0; ch < s->channels; ch++)
+ {
+ if (!s->lossless)
+ for (i = 0; i < s->block_align; i++)
+ s->coded_samples[ch][i] = divide(s->coded_samples[ch][i], quant);
+
+ if (intlist_write(&pb, s->coded_samples[ch], s->block_align, 1) < 0)
+ return -1;
+ }
+
+// av_log(avctx, AV_LOG_DEBUG, "used bytes: %d\n", (put_bits_count(&pb)+7)/8);
+
+ flush_put_bits(&pb);
+ avpkt->size = (put_bits_count(&pb)+7)/8;
+ *got_packet_ptr = 1;
+ return 0;
+}
+#endif /* CONFIG_SONIC_ENCODER || CONFIG_SONIC_LS_ENCODER */
+
+#if CONFIG_SONIC_DECODER
+static const int samplerate_table[] =
+ { 44100, 22050, 11025, 96000, 48000, 32000, 24000, 16000, 8000 };
+
+static av_cold int sonic_decode_init(AVCodecContext *avctx)
+{
+ SonicContext *s = avctx->priv_data;
+ GetBitContext gb;
+ int i, version;
+
+ s->channels = avctx->channels;
+ s->samplerate = avctx->sample_rate;
+
+ avcodec_get_frame_defaults(&s->frame);
+ avctx->coded_frame = &s->frame;
+
+ if (!avctx->extradata)
+ {
+ av_log(avctx, AV_LOG_ERROR, "No mandatory headers present\n");
+ return -1;
+ }
+
+ init_get_bits(&gb, avctx->extradata, avctx->extradata_size);
+
+ version = get_bits(&gb, 2);
+ if (version > 1)
+ {
+ av_log(avctx, AV_LOG_ERROR, "Unsupported Sonic version, please report\n");
+ return -1;
+ }
+
+ if (version == 1)
+ {
+ s->channels = get_bits(&gb, 2);
+ s->samplerate = samplerate_table[get_bits(&gb, 4)];
+ av_log(avctx, AV_LOG_INFO, "Sonicv2 chans: %d samprate: %d\n",
+ s->channels, s->samplerate);
+ }
+
+ if (s->channels > MAX_CHANNELS)
+ {
+ av_log(avctx, AV_LOG_ERROR, "Only mono and stereo streams are supported by now\n");
+ return -1;
+ }
+
+ s->lossless = get_bits1(&gb);
+ if (!s->lossless)
+ skip_bits(&gb, 3); // XXX FIXME
+ s->decorrelation = get_bits(&gb, 2);
+
+ s->downsampling = get_bits(&gb, 2);
+ if (!s->downsampling) {
+ av_log(avctx, AV_LOG_ERROR, "invalid downsampling value\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ s->num_taps = (get_bits(&gb, 5)+1)<<5;
+ if (get_bits1(&gb)) // XXX FIXME
+ av_log(avctx, AV_LOG_INFO, "Custom quant table\n");
+
+ s->block_align = (int)(2048.0*s->samplerate/44100)/s->downsampling;
+ s->frame_size = s->channels*s->block_align*s->downsampling;
+// avctx->frame_size = s->block_align;
+
+ av_log(avctx, AV_LOG_INFO, "Sonic: ver: %d ls: %d dr: %d taps: %d block: %d frame: %d downsamp: %d\n",
+ version, s->lossless, s->decorrelation, s->num_taps, s->block_align, s->frame_size, s->downsampling);
+
+ // generate taps
+ s->tap_quant = av_mallocz(4* s->num_taps);
+ for (i = 0; i < s->num_taps; i++)
+ s->tap_quant[i] = (int)(sqrt(i+1));
+
+ s->predictor_k = av_mallocz(4* s->num_taps);
+
+ for (i = 0; i < s->channels; i++)
+ {
+ s->predictor_state[i] = av_mallocz(4* s->num_taps);
+ if (!s->predictor_state[i])
+ return -1;
+ }
+
+ for (i = 0; i < s->channels; i++)
+ {
+ s->coded_samples[i] = av_mallocz(4* s->block_align);
+ if (!s->coded_samples[i])
+ return -1;
+ }
+ s->int_samples = av_mallocz(4* s->frame_size);
+
+ avctx->sample_fmt = AV_SAMPLE_FMT_S16;
+ return 0;
+}
+
+static av_cold int sonic_decode_close(AVCodecContext *avctx)
+{
+ SonicContext *s = avctx->priv_data;
+ int i;
+
+ av_free(s->int_samples);
+ av_free(s->tap_quant);
+ av_free(s->predictor_k);
+
+ for (i = 0; i < s->channels; i++)
+ {
+ av_free(s->predictor_state[i]);
+ av_free(s->coded_samples[i]);
+ }
+
+ return 0;
+}
+
+static int sonic_decode_frame(AVCodecContext *avctx,
+ void *data, int *got_frame_ptr,
+ AVPacket *avpkt)
+{
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
+ SonicContext *s = avctx->priv_data;
+ GetBitContext gb;
+ int i, quant, ch, j, ret;
+ int16_t *samples;
+
+ if (buf_size == 0) return 0;
+
+ s->frame.nb_samples = s->frame_size;
++ if ((ret = ff_get_buffer(avctx, &s->frame)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+ samples = (int16_t *)s->frame.data[0];
+
+// av_log(NULL, AV_LOG_INFO, "buf_size: %d\n", buf_size);
+
+ init_get_bits(&gb, buf, buf_size*8);
+
+ intlist_read(&gb, s->predictor_k, s->num_taps, 0);
+
+ // dequantize
+ for (i = 0; i < s->num_taps; i++)
+ s->predictor_k[i] *= s->tap_quant[i];
+
+ if (s->lossless)
+ quant = 1;
+ else
+ quant = get_ue_golomb(&gb) * SAMPLE_FACTOR;
+
+// av_log(NULL, AV_LOG_INFO, "quant: %d\n", quant);
+
+ for (ch = 0; ch < s->channels; ch++)
+ {
+ int x = ch;
+
+ predictor_init_state(s->predictor_k, s->predictor_state[ch], s->num_taps);
+
+ intlist_read(&gb, s->coded_samples[ch], s->block_align, 1);
+
+ for (i = 0; i < s->block_align; i++)
+ {
+ for (j = 0; j < s->downsampling - 1; j++)
+ {
+ s->int_samples[x] = predictor_calc_error(s->predictor_k, s->predictor_state[ch], s->num_taps, 0);
+ x += s->channels;
+ }
+
+ s->int_samples[x] = predictor_calc_error(s->predictor_k, s->predictor_state[ch], s->num_taps, s->coded_samples[ch][i] * quant);
+ x += s->channels;
+ }
+
+ for (i = 0; i < s->num_taps; i++)
+ s->predictor_state[ch][i] = s->int_samples[s->frame_size - s->channels + ch - i*s->channels];
+ }
+
+ switch(s->decorrelation)
+ {
+ case MID_SIDE:
+ for (i = 0; i < s->frame_size; i += s->channels)
+ {
+ s->int_samples[i+1] += shift(s->int_samples[i], 1);
+ s->int_samples[i] -= s->int_samples[i+1];
+ }
+ break;
+ case LEFT_SIDE:
+ for (i = 0; i < s->frame_size; i += s->channels)
+ s->int_samples[i+1] += s->int_samples[i];
+ break;
+ case RIGHT_SIDE:
+ for (i = 0; i < s->frame_size; i += s->channels)
+ s->int_samples[i] += s->int_samples[i+1];
+ break;
+ }
+
+ if (!s->lossless)
+ for (i = 0; i < s->frame_size; i++)
+ s->int_samples[i] = shift(s->int_samples[i], SAMPLE_SHIFT);
+
+ // internal -> short
+ for (i = 0; i < s->frame_size; i++)
+ samples[i] = av_clip_int16(s->int_samples[i]);
+
+ align_get_bits(&gb);
+
+ *got_frame_ptr = 1;
+ *(AVFrame*)data = s->frame;
+
+ return (get_bits_count(&gb)+7)/8;
+}
+
+AVCodec ff_sonic_decoder = {
+ .name = "sonic",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_SONIC,
+ .priv_data_size = sizeof(SonicContext),
+ .init = sonic_decode_init,
+ .close = sonic_decode_close,
+ .decode = sonic_decode_frame,
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_EXPERIMENTAL,
+ .long_name = NULL_IF_CONFIG_SMALL("Sonic"),
+};
+#endif /* CONFIG_SONIC_DECODER */
+
+#if CONFIG_SONIC_ENCODER
+AVCodec ff_sonic_encoder = {
+ .name = "sonic",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_SONIC,
+ .priv_data_size = sizeof(SonicContext),
+ .init = sonic_encode_init,
+ .encode2 = sonic_encode_frame,
+ .capabilities = CODEC_CAP_EXPERIMENTAL,
+ .close = sonic_encode_close,
+ .long_name = NULL_IF_CONFIG_SMALL("Sonic"),
+};
+#endif
+
+#if CONFIG_SONIC_LS_ENCODER
+AVCodec ff_sonic_ls_encoder = {
+ .name = "sonicls",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_SONIC_LS,
+ .priv_data_size = sizeof(SonicContext),
+ .init = sonic_encode_init,
+ .encode2 = sonic_encode_frame,
+ .capabilities = CODEC_CAP_EXPERIMENTAL,
+ .close = sonic_encode_close,
+ .long_name = NULL_IF_CONFIG_SMALL("Sonic lossless"),
+};
+#endif
--- /dev/null
- if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0)
+/*
+ * TAK decoder
+ * Copyright (c) 2012 Paul B Mahol
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * TAK (Tom's lossless Audio Kompressor) decoder
+ * @author Paul B Mahol
+ */
+
+#include "tak.h"
+#include "avcodec.h"
++#include "internal.h"
+#include "unary.h"
+#include "dsputil.h"
+
+#define MAX_SUBFRAMES 8 ///< max number of subframes per channel
+#define MAX_PREDICTORS 256
+
+typedef struct MCDParam {
+ int8_t present; ///< is decorrelation parameters available for this channel
+ int8_t index; ///< index into array of decorrelation types
+ int8_t chan1;
+ int8_t chan2;
+} MCDParam;
+
+typedef struct TAKDecContext {
+ AVCodecContext *avctx; ///< parent AVCodecContext
+ AVFrame frame; ///< AVFrame for decoded output
+ DSPContext dsp;
+ TAKStreamInfo ti;
+ GetBitContext gb; ///< bitstream reader initialized to start at the current frame
+
+ int nb_samples; ///< number of samples in the current frame
+ int32_t *decode_buffer;
+ int decode_buffer_size;
+ int32_t *decoded[TAK_MAX_CHANNELS]; ///< decoded samples for each channel
+
+ int8_t lpc_mode[TAK_MAX_CHANNELS];
+ int8_t sample_shift[TAK_MAX_CHANNELS]; ///< shift applied to every sample in the channel
+ int32_t xred;
+ int size;
+ int ared;
+ int filter_order;
+ int16_t predictors[MAX_PREDICTORS];
+ int nb_subframes; ///< number of subframes in the current frame
+ int16_t subframe_len[MAX_SUBFRAMES]; ///< subframe length in samples
+ int subframe_scale;
+
+ int8_t dmode; ///< channel decorrelation type in the current frame
+ int8_t dshift;
+ int16_t dfactor;
+ int8_t dval1;
+ int8_t dval2;
+
+ MCDParam mcdparams[TAK_MAX_CHANNELS]; ///< multichannel decorrelation parameters
+
+ int wlength;
+ int uval;
+ int rval;
+ int8_t coding_mode[128];
+ DECLARE_ALIGNED(16, int16_t, filter)[MAX_PREDICTORS];
+ DECLARE_ALIGNED(16, int16_t, residues)[544];
+} TAKDecContext;
+
+static const int8_t mc_dmodes[] = {
+ 1, 3, 4, 6,
+};
+
+static const uint16_t predictor_sizes[] = {
+ 4, 8, 12, 16, 24, 32, 48, 64, 80, 96, 128, 160, 192, 224, 256, 0,
+};
+
+static const struct CParam {
+ int init;
+ int escape;
+ int scale;
+ int aescape;
+ int bias;
+} xcodes[50] = {
+ { 0x01, 0x0000001, 0x0000001, 0x0000003, 0x0000008 },
+ { 0x02, 0x0000003, 0x0000001, 0x0000007, 0x0000006 },
+ { 0x03, 0x0000005, 0x0000002, 0x000000E, 0x000000D },
+ { 0x03, 0x0000003, 0x0000003, 0x000000D, 0x0000018 },
+ { 0x04, 0x000000B, 0x0000004, 0x000001C, 0x0000019 },
+ { 0x04, 0x0000006, 0x0000006, 0x000001A, 0x0000030 },
+ { 0x05, 0x0000016, 0x0000008, 0x0000038, 0x0000032 },
+ { 0x05, 0x000000C, 0x000000C, 0x0000034, 0x0000060 },
+ { 0x06, 0x000002C, 0x0000010, 0x0000070, 0x0000064 },
+ { 0x06, 0x0000018, 0x0000018, 0x0000068, 0x00000C0 },
+ { 0x07, 0x0000058, 0x0000020, 0x00000E0, 0x00000C8 },
+ { 0x07, 0x0000030, 0x0000030, 0x00000D0, 0x0000180 },
+ { 0x08, 0x00000B0, 0x0000040, 0x00001C0, 0x0000190 },
+ { 0x08, 0x0000060, 0x0000060, 0x00001A0, 0x0000300 },
+ { 0x09, 0x0000160, 0x0000080, 0x0000380, 0x0000320 },
+ { 0x09, 0x00000C0, 0x00000C0, 0x0000340, 0x0000600 },
+ { 0x0A, 0x00002C0, 0x0000100, 0x0000700, 0x0000640 },
+ { 0x0A, 0x0000180, 0x0000180, 0x0000680, 0x0000C00 },
+ { 0x0B, 0x0000580, 0x0000200, 0x0000E00, 0x0000C80 },
+ { 0x0B, 0x0000300, 0x0000300, 0x0000D00, 0x0001800 },
+ { 0x0C, 0x0000B00, 0x0000400, 0x0001C00, 0x0001900 },
+ { 0x0C, 0x0000600, 0x0000600, 0x0001A00, 0x0003000 },
+ { 0x0D, 0x0001600, 0x0000800, 0x0003800, 0x0003200 },
+ { 0x0D, 0x0000C00, 0x0000C00, 0x0003400, 0x0006000 },
+ { 0x0E, 0x0002C00, 0x0001000, 0x0007000, 0x0006400 },
+ { 0x0E, 0x0001800, 0x0001800, 0x0006800, 0x000C000 },
+ { 0x0F, 0x0005800, 0x0002000, 0x000E000, 0x000C800 },
+ { 0x0F, 0x0003000, 0x0003000, 0x000D000, 0x0018000 },
+ { 0x10, 0x000B000, 0x0004000, 0x001C000, 0x0019000 },
+ { 0x10, 0x0006000, 0x0006000, 0x001A000, 0x0030000 },
+ { 0x11, 0x0016000, 0x0008000, 0x0038000, 0x0032000 },
+ { 0x11, 0x000C000, 0x000C000, 0x0034000, 0x0060000 },
+ { 0x12, 0x002C000, 0x0010000, 0x0070000, 0x0064000 },
+ { 0x12, 0x0018000, 0x0018000, 0x0068000, 0x00C0000 },
+ { 0x13, 0x0058000, 0x0020000, 0x00E0000, 0x00C8000 },
+ { 0x13, 0x0030000, 0x0030000, 0x00D0000, 0x0180000 },
+ { 0x14, 0x00B0000, 0x0040000, 0x01C0000, 0x0190000 },
+ { 0x14, 0x0060000, 0x0060000, 0x01A0000, 0x0300000 },
+ { 0x15, 0x0160000, 0x0080000, 0x0380000, 0x0320000 },
+ { 0x15, 0x00C0000, 0x00C0000, 0x0340000, 0x0600000 },
+ { 0x16, 0x02C0000, 0x0100000, 0x0700000, 0x0640000 },
+ { 0x16, 0x0180000, 0x0180000, 0x0680000, 0x0C00000 },
+ { 0x17, 0x0580000, 0x0200000, 0x0E00000, 0x0C80000 },
+ { 0x17, 0x0300000, 0x0300000, 0x0D00000, 0x1800000 },
+ { 0x18, 0x0B00000, 0x0400000, 0x1C00000, 0x1900000 },
+ { 0x18, 0x0600000, 0x0600000, 0x1A00000, 0x3000000 },
+ { 0x19, 0x1600000, 0x0800000, 0x3800000, 0x3200000 },
+ { 0x19, 0x0C00000, 0x0C00000, 0x3400000, 0x6000000 },
+ { 0x1A, 0x2C00000, 0x1000000, 0x7000000, 0x6400000 },
+ { 0x1A, 0x1800000, 0x1800000, 0x6800000, 0xC000000 },
+};
+
+static int tak_set_bps(AVCodecContext *avctx, int bps)
+{
+ switch (bps) {
+ case 8:
+ avctx->sample_fmt = AV_SAMPLE_FMT_U8P;
+ break;
+ case 16:
+ avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
+ break;
+ case 24:
+ avctx->sample_fmt = AV_SAMPLE_FMT_S32P;
+ break;
+ default:
+ av_log(avctx, AV_LOG_ERROR, "invalid/unsupported bits per sample\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ return 0;
+}
+
+static int get_shift(int sample_rate)
+{
+ int shift;
+
+ if (sample_rate < 11025)
+ shift = 3;
+ else if (sample_rate < 22050)
+ shift = 2;
+ else if (sample_rate < 44100)
+ shift = 1;
+ else
+ shift = 0;
+
+ return shift;
+}
+
+static int get_scale(int sample_rate, int shift)
+{
+ return FFALIGN(sample_rate + 511 >> 9, 4) << shift;
+}
+
+static av_cold int tak_decode_init(AVCodecContext *avctx)
+{
+ TAKDecContext *s = avctx->priv_data;
+ int ret;
+
+ ff_tak_init_crc();
+ ff_dsputil_init(&s->dsp, avctx);
+
+ s->avctx = avctx;
+ avcodec_get_frame_defaults(&s->frame);
+ avctx->coded_frame = &s->frame;
+
+ s->uval = get_scale(avctx->sample_rate, get_shift(avctx->sample_rate));
+ s->subframe_scale = get_scale(avctx->sample_rate, 1);
+
+ if ((ret = tak_set_bps(avctx, avctx->bits_per_coded_sample)) < 0)
+ return ret;
+
+ return 0;
+}
+
+static int get_code(GetBitContext *gb, int nbits)
+{
+ if (nbits == 1) {
+ skip_bits1(gb);
+ return 0;
+ } else {
+ return get_sbits(gb, nbits);
+ }
+}
+
+static void decode_lpc(int32_t *coeffs, int mode, int length)
+{
+ int i, a1, a2, a3, a4, a5;
+
+ if (length < 2)
+ return;
+
+ if (mode == 1) {
+ a1 = *coeffs++;
+ for (i = 0; i < (length - 1 >> 1); i++) {
+ *coeffs += a1;
+ coeffs[1] += *coeffs;
+ a1 = coeffs[1];
+ coeffs += 2;
+ }
+ if ((length - 1) & 1)
+ *coeffs += a1;
+ } else if (mode == 2) {
+ a1 = coeffs[1];
+ a2 = a1 + *coeffs;
+ coeffs[1] = a2;
+ if (length > 2) {
+ coeffs += 2;
+ for (i = 0; i < (length - 2 >> 1); i++) {
+ a3 = *coeffs + a1;
+ a4 = a3 + a2;
+ *coeffs = a4;
+ a1 = coeffs[1] + a3;
+ a2 = a1 + a4;
+ coeffs[1] = a2;
+ coeffs += 2;
+ }
+ if (length & 1)
+ *coeffs += a1 + a2;
+ }
+ } else if (mode == 3) {
+ a1 = coeffs[1];
+ a2 = a1 + *coeffs;
+ coeffs[1] = a2;
+ if (length > 2) {
+ a3 = coeffs[2];
+ a4 = a3 + a1;
+ a5 = a4 + a2;
+ coeffs += 3;
+ for (i = 0; i < length - 3; i++) {
+ a3 += *coeffs;
+ a4 += a3;
+ a5 += a4;
+ *coeffs = a5;
+ coeffs++;
+ }
+ }
+ }
+}
+
+static int decode_segment(TAKDecContext *s, int8_t value, int32_t *dst, int len)
+{
+ GetBitContext *gb = &s->gb;
+
+ if (!value) {
+ memset(dst, 0, len * 4);
+ } else {
+ int x, y, z, i = 0;
+
+ value--;
+ do {
+ while (1) {
+ x = get_bits_long(gb, xcodes[value].init);
+ if (x >= xcodes[value].escape)
+ break;
+ dst[i++] = (x >> 1) ^ -(x & 1);
+ if (i >= len)
+ return 0;
+ }
+
+ y = get_bits1(gb);
+ x = (y << xcodes[value].init) | x;
+ if (x >= xcodes[value].aescape) {
+ int c = get_unary(gb, 1, 9);
+
+ if (c == 9) {
+ int d;
+
+ z = x + xcodes[value].bias;
+ d = get_bits(gb, 3);
+ if (d == 7) {
+ d = get_bits(gb, 5) + 7;
+ if (d > 29)
+ return AVERROR_INVALIDDATA;
+ }
+ if (d)
+ z += xcodes[value].scale * (get_bits_long(gb, d) + 1);
+ } else {
+ z = xcodes[value].scale * c + x - xcodes[value].escape;
+ }
+ } else {
+ z = x - (xcodes[value].escape & -y);
+ }
+ dst[i++] = (z >> 1) ^ -(z & 1);
+ } while (i < len);
+ }
+
+ return 0;
+}
+
+static int xget(TAKDecContext *s, int d, int q)
+{
+ int x;
+
+ x = d / q;
+
+ s->rval = d - (x * q);
+
+ if (s->rval < q / 2) {
+ s->rval += q;
+ } else {
+ x++;
+ }
+
+ if (x <= 1 || x > 128)
+ return -1;
+
+ return x;
+}
+
+static int get_len(TAKDecContext *s, int b)
+{
+ if (b >= s->wlength - 1)
+ return s->rval;
+ else
+ return s->uval;
+}
+
+static int decode_coeffs(TAKDecContext *s, int32_t *dst, int length)
+{
+ GetBitContext *gb = &s->gb;
+ int i, v, ret;
+
+ if (length > s->nb_samples)
+ return AVERROR_INVALIDDATA;
+
+ if (get_bits1(gb)) {
+ if ((s->wlength = xget(s, length, s->uval)) < 0)
+ return AVERROR_INVALIDDATA;
+
+ s->coding_mode[0] = v = get_bits(gb, 6);
+ if (s->coding_mode[0] > FF_ARRAY_ELEMS(xcodes))
+ return AVERROR_INVALIDDATA;
+
+ for (i = 1; i < s->wlength; i++) {
+ int c = get_unary(gb, 1, 6);
+
+ if (c > 5) {
+ v = get_bits(gb, 6);
+ } else if (c > 2) {
+ int t = get_bits1(gb);
+
+ v += (-t ^ (c - 1)) + t;
+ } else {
+ v += (-(c & 1) ^ (((c & 1) + c) >> 1)) + (c & 1);
+ }
+
+ if (v > FF_ARRAY_ELEMS(xcodes))
+ return AVERROR_INVALIDDATA;
+ s->coding_mode[i] = v;
+ }
+
+ i = 0;
+ while (i < s->wlength) {
+ int len = 0;
+
+ v = s->coding_mode[i];
+ do {
+ len += get_len(s, i);
+ i++;
+
+ if (i == s->wlength)
+ break;
+ } while (v == s->coding_mode[i]);
+
+ if ((ret = decode_segment(s, v, dst, len)) < 0)
+ return ret;
+ dst += len;
+ }
+ } else {
+ v = get_bits(gb, 6);
+ if (v > FF_ARRAY_ELEMS(xcodes))
+ return AVERROR_INVALIDDATA;
+ if ((ret = decode_segment(s, v, dst, length)) < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int get_b(GetBitContext *gb)
+{
+ if (get_bits1(gb))
+ return get_bits(gb, 4) + 1;
+ else
+ return 0;
+}
+
+static int decode_subframe(TAKDecContext *s, int32_t *ptr, int subframe_size,
+ int prev_subframe_size)
+{
+ GetBitContext *gb = &s->gb;
+ int tmp, x, y, i, j, ret = 0;
+ int tfilter[MAX_PREDICTORS];
+
+ if (get_bits1(gb)) {
+ s->filter_order = predictor_sizes[get_bits(gb, 4)];
+
+ if (prev_subframe_size > 0 && get_bits1(gb)) {
+ if (s->filter_order > prev_subframe_size)
+ return AVERROR_INVALIDDATA;
+
+ ptr -= s->filter_order;
+ subframe_size += s->filter_order;
+
+ if (s->filter_order > subframe_size)
+ return AVERROR_INVALIDDATA;
+ } else {
+ int lpc;
+
+ if (s->filter_order > subframe_size)
+ return AVERROR_INVALIDDATA;
+
+ lpc = get_bits(gb, 2);
+ if (lpc > 2)
+ return AVERROR_INVALIDDATA;
+
+ if ((ret = decode_coeffs(s, ptr, s->filter_order)) < 0)
+ return ret;
+
+ decode_lpc(ptr, lpc, s->filter_order);
+ }
+
+ s->xred = get_b(gb);
+ s->size = get_bits1(gb) + 5;
+
+ if (get_bits1(gb)) {
+ s->ared = get_bits(gb, 3) + 1;
+ if (s->ared > 7)
+ return AVERROR_INVALIDDATA;
+ } else {
+ s->ared = 0;
+ }
+ s->predictors[0] = get_code(gb, 10);
+ s->predictors[1] = get_code(gb, 10);
+ s->predictors[2] = get_code(gb, s->size + 1) << (9 - s->size);
+ s->predictors[3] = get_code(gb, s->size + 1) << (9 - s->size);
+ if (s->filter_order > 4) {
+ tmp = s->size + 1 - get_bits1(gb);
+
+ for (i = 4; i < s->filter_order; i++) {
+ if (!(i & 3))
+ x = tmp - get_bits(gb, 2);
+ s->predictors[i] = get_code(gb, x) << (9 - s->size);
+ }
+ }
+
+ tfilter[0] = s->predictors[0] << 6;
+ for (i = 1; i < s->filter_order; i++) {
+ int32_t *p1 = &tfilter[0];
+ int32_t *p2 = &tfilter[i - 1];
+
+ for (j = 0; j < (i + 1) / 2; j++) {
+ x = *p1 + (s->predictors[i] * *p2 + 256 >> 9);
+ *p2 += s->predictors[i] * *p1 + 256 >> 9;
+ *p1++ = x;
+ p2--;
+ }
+
+ tfilter[i] = s->predictors[i] << 6;
+ }
+
+ x = -1 << (32 - (s->ared + 5));
+ y = 1 << ((s->ared + 5) - 1);
+ for (i = 0, j = s->filter_order - 1; i < s->filter_order / 2; i++, j--) {
+ tmp = y + tfilter[j];
+ s->filter[j] = -(x & -(y + tfilter[i] >> 31) |
+ (y + tfilter[i]) >> (s->ared + 5));
+ s->filter[i] = -(x & -(tmp >> 31) | (tmp >> s->ared + 5));
+ }
+
+ if ((ret = decode_coeffs(s, &ptr[s->filter_order],
+ subframe_size - s->filter_order)) < 0)
+ return ret;
+
+ for (i = 0; i < s->filter_order; i++)
+ s->residues[i] = *ptr++ >> s->xred;
+
+ y = FF_ARRAY_ELEMS(s->residues) - s->filter_order;
+ x = subframe_size - s->filter_order;
+ while (x > 0) {
+ tmp = FFMIN(y, x);
+
+ for (i = 0; i < tmp; i++) {
+ int v, w, m;
+
+ v = 1 << (10 - s->ared - 1);
+ if (!(s->filter_order & 15)) {
+ v += s->dsp.scalarproduct_int16(&s->residues[i], s->filter,
+ s->filter_order);
+ } else if (s->filter_order & 4) {
+ for (j = 0; j < s->filter_order; j += 4) {
+ v += s->residues[i + j + 3] * s->filter[j + 3] +
+ s->residues[i + j + 2] * s->filter[j + 2] +
+ s->residues[i + j + 1] * s->filter[j + 1] +
+ s->residues[i + j ] * s->filter[j ];
+ }
+ } else {
+ for (j = 0; j < s->filter_order; j += 8) {
+ v += s->residues[i + j + 7] * s->filter[j + 7] +
+ s->residues[i + j + 6] * s->filter[j + 6] +
+ s->residues[i + j + 5] * s->filter[j + 5] +
+ s->residues[i + j + 4] * s->filter[j + 4] +
+ s->residues[i + j + 3] * s->filter[j + 3] +
+ s->residues[i + j + 2] * s->filter[j + 2] +
+ s->residues[i + j + 1] * s->filter[j + 1] +
+ s->residues[i + j ] * s->filter[j ];
+ }
+ }
+ m = (-1 << (32 - (10 - s->ared))) & -(v >> 31) | (v >> 10 - s->ared);
+ m = av_clip(m, -8192, 8191);
+ w = (m << s->xred) - *ptr;
+ *ptr++ = w;
+ s->residues[s->filter_order + i] = w >> s->xred;
+ }
+
+ x -= tmp;
+ if (x > 0)
+ memcpy(s->residues, &s->residues[y], 2 * s->filter_order);
+ }
+
+ emms_c();
+ } else {
+ ret = decode_coeffs(s, ptr, subframe_size);
+ }
+
+ return ret;
+}
+
+static int decode_channel(TAKDecContext *s, int chan)
+{
+ AVCodecContext *avctx = s->avctx;
+ GetBitContext *gb = &s->gb;
+ int32_t *dst = s->decoded[chan];
+ int i = 0, ret, prev = 0;
+ int left = s->nb_samples - 1;
+
+ s->sample_shift[chan] = get_b(gb);
+ if (s->sample_shift[chan] >= avctx->bits_per_raw_sample)
+ return AVERROR_INVALIDDATA;
+
+ *dst++ = get_code(gb, avctx->bits_per_raw_sample - s->sample_shift[chan]);
+ s->lpc_mode[chan] = get_bits(gb, 2);
+ s->nb_subframes = get_bits(gb, 3) + 1;
+
+ if (s->nb_subframes > 1) {
+ if (get_bits_left(gb) < (s->nb_subframes - 1) * 6)
+ return AVERROR_INVALIDDATA;
+
+ for (; i < s->nb_subframes - 1; i++) {
+ int v = get_bits(gb, 6);
+
+ s->subframe_len[i] = (v - prev) * s->subframe_scale;
+ if (s->subframe_len[i] <= 0)
+ return AVERROR_INVALIDDATA;
+
+ left -= s->subframe_len[i];
+ prev = v;
+ }
+
+ if (left <= 0)
+ return AVERROR_INVALIDDATA;
+ }
+
+ s->subframe_len[i] = left;
+ prev = 0;
+ for (i = 0; i < s->nb_subframes; i++) {
+ if ((ret = decode_subframe(s, dst, s->subframe_len[i], prev)) < 0)
+ return ret;
+ dst += s->subframe_len[i];
+ prev = s->subframe_len[i];
+ }
+
+ return 0;
+}
+
+static int decorrelate(TAKDecContext *s, int c1, int c2, int length)
+{
+ GetBitContext *gb = &s->gb;
+ uint32_t *p1 = s->decoded[c1] + 1;
+ uint32_t *p2 = s->decoded[c2] + 1;
+ int a, b, i, x, tmp;
+
+ if (s->dmode > 3) {
+ s->dshift = get_b(gb);
+ if (s->dmode > 5) {
+ if (get_bits1(gb))
+ s->filter_order = 16;
+ else
+ s->filter_order = 8;
+
+ s->dval1 = get_bits1(gb);
+ s->dval2 = get_bits1(gb);
+
+ for (i = 0; i < s->filter_order; i++) {
+ if (!(i & 3))
+ x = 14 - get_bits(gb, 3);
+ s->filter[i] = get_code(gb, x);
+ }
+ } else {
+ s->dfactor = get_code(gb, 10);
+ }
+ }
+
+ switch (s->dmode) {
+ case 1:
+ for (i = 0; i < length; i++, p1++, p2++)
+ *p2 += *p1;
+ break;
+ case 2:
+ for (i = 0; i < length; i++, p1++, p2++)
+ *p1 = *p2 - *p1;
+ break;
+ case 3:
+ for (i = 0; i < length; i++, p1++, p2++) {
+ x = (*p2 & 1) + 2 * *p1;
+ a = -*p2 + x;
+ b = *p2 + x;
+ *p1 = a & 0x80000000 | (a >> 1);
+ *p2 = b & 0x80000000 | (b >> 1);
+ }
+ break;
+ case 4:
+ FFSWAP(uint32_t *, p1, p2);
+ case 5:
+ if (s->dshift)
+ tmp = -1 << (32 - s->dshift);
+ else
+ tmp = 0;
+
+ for (i = 0; i < length; i++, p1++, p2++) {
+ x = s->dfactor * (tmp & -(*p2 >> 31) | (*p2 >> s->dshift)) + 128;
+ *p1 = ((-(x >> 31) & 0xFF000000 | (x >> 8)) << s->dshift) - *p1;
+ }
+ break;
+ case 6:
+ FFSWAP(uint32_t *, p1, p2);
+ case 7:
+ if (length < 256)
+ return AVERROR_INVALIDDATA;
+
+ a = s->filter_order / 2;
+ b = length - (s->filter_order - 1);
+
+ if (s->dval1) {
+ for (i = 0; i < a; i++)
+ p1[i] += p2[i];
+ }
+
+ if (s->dval2) {
+ x = a + b;
+ for (i = 0; i < length - x; i++)
+ p1[x + i] += p2[x + i];
+ }
+
+ for (i = 0; i < s->filter_order; i++)
+ s->residues[i] = *p2++ >> s->dshift;
+
+ p1 += a;
+ x = FF_ARRAY_ELEMS(s->residues) - s->filter_order;
+ for (; b > 0; b -= tmp) {
+ tmp = FFMIN(b, x);
+
+ for (i = 0; i < tmp; i++)
+ s->residues[s->filter_order + i] = *p2++ >> s->dshift;
+
+ for (i = 0; i < tmp; i++) {
+ int v, w, m;
+
+ v = 1 << 9;
+
+ if (s->filter_order == 16) {
+ v += s->dsp.scalarproduct_int16(&s->residues[i], s->filter,
+ s->filter_order);
+ } else {
+ v += s->residues[i + 7] * s->filter[7] +
+ s->residues[i + 6] * s->filter[6] +
+ s->residues[i + 5] * s->filter[5] +
+ s->residues[i + 4] * s->filter[4] +
+ s->residues[i + 3] * s->filter[3] +
+ s->residues[i + 2] * s->filter[2] +
+ s->residues[i + 1] * s->filter[1] +
+ s->residues[i ] * s->filter[0];
+ }
+
+ m = (-1 << 22) & -(v >> 31) | (v >> 10);
+ m = av_clip(m, -8192, 8191);
+ w = (m << s->dshift) - *p1;
+ *p1++ = w;
+ }
+
+ memcpy(s->residues, &s->residues[tmp], 2 * s->filter_order);
+ }
+
+ emms_c();
+ break;
+ }
+
+ return 0;
+}
+
+static int tak_decode_frame(AVCodecContext *avctx, void *data,
+ int *got_frame_ptr, AVPacket *pkt)
+{
+ TAKDecContext *s = avctx->priv_data;
+ GetBitContext *gb = &s->gb;
+ int chan, i, ret, hsize;
+ int32_t *p;
+
+ if (pkt->size < TAK_MIN_FRAME_HEADER_BYTES)
+ return AVERROR_INVALIDDATA;
+
+ init_get_bits(gb, pkt->data, pkt->size * 8);
+
+ if ((ret = ff_tak_decode_frame_header(avctx, gb, &s->ti, 0)) < 0)
+ return ret;
+
+ if (avctx->err_recognition & AV_EF_CRCCHECK) {
+ hsize = get_bits_count(gb) / 8;
+ if (ff_tak_check_crc(pkt->data, hsize)) {
+ av_log(avctx, AV_LOG_ERROR, "CRC error\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ if (s->ti.codec != 2 && s->ti.codec != 4) {
+ av_log(avctx, AV_LOG_ERROR, "unsupported codec: %d\n", s->ti.codec);
+ return AVERROR_PATCHWELCOME;
+ }
+ if (s->ti.data_type) {
+ av_log(avctx, AV_LOG_ERROR, "unsupported data type: %d\n", s->ti.data_type);
+ return AVERROR_INVALIDDATA;
+ }
+ if (s->ti.codec == 2 && s->ti.channels > 2) {
+ av_log(avctx, AV_LOG_ERROR, "invalid number of channels: %d\n", s->ti.channels);
+ return AVERROR_INVALIDDATA;
+ }
+ if (s->ti.channels > 6) {
+ av_log(avctx, AV_LOG_ERROR, "unsupported number of channels: %d\n", s->ti.channels);
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (s->ti.frame_samples <= 0) {
+ av_log(avctx, AV_LOG_ERROR, "unsupported/invalid number of samples\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (s->ti.bps != avctx->bits_per_raw_sample) {
+ avctx->bits_per_raw_sample = s->ti.bps;
+ if ((ret = tak_set_bps(avctx, avctx->bits_per_raw_sample)) < 0)
+ return ret;
+ }
+ if (s->ti.sample_rate != avctx->sample_rate) {
+ avctx->sample_rate = s->ti.sample_rate;
+ s->uval = get_scale(avctx->sample_rate, get_shift(avctx->sample_rate));
+ s->subframe_scale = get_scale(avctx->sample_rate, 1);
+ }
+ if (s->ti.ch_layout)
+ avctx->channel_layout = s->ti.ch_layout;
+ avctx->channels = s->ti.channels;
+
+ s->nb_samples = s->ti.last_frame_samples ? s->ti.last_frame_samples :
+ s->ti.frame_samples;
+
+ s->frame.nb_samples = s->nb_samples;
++ if ((ret = ff_get_buffer(avctx, &s->frame)) < 0)
+ return ret;
+
+ if (avctx->bits_per_raw_sample <= 16) {
+ av_fast_malloc(&s->decode_buffer, &s->decode_buffer_size,
+ sizeof(*s->decode_buffer) * FFALIGN(s->nb_samples, 8) *
+ avctx->channels + FF_INPUT_BUFFER_PADDING_SIZE);
+ if (!s->decode_buffer)
+ return AVERROR(ENOMEM);
+ for (chan = 0; chan < avctx->channels; chan++)
+ s->decoded[chan] = s->decode_buffer +
+ chan * FFALIGN(s->nb_samples, 8);
+ } else {
+ for (chan = 0; chan < avctx->channels; chan++)
+ s->decoded[chan] = (int32_t *)s->frame.data[chan];
+ }
+
+ if (s->nb_samples < 16) {
+ for (chan = 0; chan < avctx->channels; chan++) {
+ p = s->decoded[chan];
+ for (i = 0; i < s->nb_samples; i++)
+ *p++ = get_code(gb, avctx->bits_per_raw_sample);
+ }
+ } else {
+ if (s->ti.codec == 2) {
+ for (chan = 0; chan < avctx->channels; chan++) {
+ if (ret = decode_channel(s, chan))
+ return ret;
+ }
+
+ if (avctx->channels == 2) {
+ s->nb_subframes = get_bits(gb, 1) + 1;
+ if (s->nb_subframes > 1)
+ s->subframe_len[1] = get_bits(gb, 6);
+
+ s->dmode = get_bits(gb, 3);
+ if (ret = decorrelate(s, 0, 1, s->nb_samples - 1))
+ return ret;
+ }
+ } else if (s->ti.codec == 4) {
+ if (get_bits1(gb)) {
+ int ch_mask = 0;
+
+ chan = get_bits(gb, 4) + 1;
+ if (chan > avctx->channels)
+ return AVERROR_INVALIDDATA;
+
+ for (i = 0; i < chan; i++) {
+ int nbit = get_bits(gb, 4);
+
+ if (nbit >= avctx->channels)
+ return AVERROR_INVALIDDATA;
+
+ if (ch_mask & 1 << nbit)
+ return AVERROR_INVALIDDATA;
+
+ s->mcdparams[i].present = get_bits1(gb);
+ if (s->mcdparams[i].present) {
+ s->mcdparams[i].index = get_bits(gb, 2);
+ s->mcdparams[i].chan2 = get_bits(gb, 4);
+ if (s->mcdparams[i].index == 1) {
+ if ((nbit == s->mcdparams[i].chan2) ||
+ (ch_mask & 1 << s->mcdparams[i].chan2))
+ return AVERROR_INVALIDDATA;
+
+ ch_mask |= 1 << s->mcdparams[i].chan2;
+ } else if (!(ch_mask & 1 << s->mcdparams[i].chan2)) {
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ s->mcdparams[i].chan1 = nbit;
+
+ ch_mask |= 1 << nbit;
+ }
+ } else {
+ chan = avctx->channels;
+ for (i = 0; i < chan; i++) {
+ s->mcdparams[i].present = 0;
+ s->mcdparams[i].chan1 = i;
+ }
+ }
+
+ for (i = 0; i < chan; i++) {
+ if (s->mcdparams[i].present && s->mcdparams[i].index == 1) {
+ if (ret = decode_channel(s, s->mcdparams[i].chan2))
+ return ret;
+ }
+
+ if (ret = decode_channel(s, s->mcdparams[i].chan1))
+ return ret;
+
+ if (s->mcdparams[i].present) {
+ s->dmode = mc_dmodes[s->mcdparams[i].index];
+ if (ret = decorrelate(s, s->mcdparams[i].chan2,
+ s->mcdparams[i].chan1,
+ s->nb_samples - 1))
+ return ret;
+ }
+ }
+ }
+
+ for (chan = 0; chan < avctx->channels; chan++) {
+ p = s->decoded[chan];
+ decode_lpc(p, s->lpc_mode[chan], s->nb_samples);
+
+ if (s->sample_shift[chan] > 0) {
+ for (i = 0; i < s->nb_samples; i++)
+ *p++ <<= s->sample_shift[chan];
+ }
+ }
+ }
+
+ align_get_bits(gb);
+ skip_bits(gb, 24);
+ if (get_bits_left(gb) < 0)
+ av_log(avctx, AV_LOG_DEBUG, "overread\n");
+ else if (get_bits_left(gb) > 0)
+ av_log(avctx, AV_LOG_DEBUG, "underread\n");
+
+ if (avctx->err_recognition & AV_EF_CRCCHECK) {
+ if (ff_tak_check_crc(pkt->data + hsize,
+ get_bits_count(gb) / 8 - hsize)) {
+ av_log(avctx, AV_LOG_ERROR, "CRC error\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ // convert to output buffer
+ switch (avctx->bits_per_raw_sample) {
+ case 8:
+ for (chan = 0; chan < avctx->channels; chan++) {
+ uint8_t *samples = (uint8_t *)s->frame.data[chan];
+ p = s->decoded[chan];
+ for (i = 0; i < s->nb_samples; i++, p++)
+ *samples++ = *p + 0x80;
+ }
+ break;
+ case 16:
+ for (chan = 0; chan < avctx->channels; chan++) {
+ int16_t *samples = (int16_t *)s->frame.data[chan];
+ p = s->decoded[chan];
+ for (i = 0; i < s->nb_samples; i++, p++)
+ *samples++ = *p;
+ }
+ break;
+ case 24:
+ for (chan = 0; chan < avctx->channels; chan++) {
+ int32_t *samples = (int32_t *)s->frame.data[chan];
+ for (i = 0; i < s->nb_samples; i++)
+ *samples++ <<= 8;
+ }
+ break;
+ }
+
+ *got_frame_ptr = 1;
+ *(AVFrame *)data = s->frame;
+
+ return pkt->size;
+}
+
+static av_cold int tak_decode_close(AVCodecContext *avctx)
+{
+ TAKDecContext *s = avctx->priv_data;
+
+ av_freep(&s->decode_buffer);
+
+ return 0;
+}
+
+AVCodec ff_tak_decoder = {
+ .name = "tak",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_TAK,
+ .priv_data_size = sizeof(TAKDecContext),
+ .init = tak_decode_init,
+ .close = tak_decode_close,
+ .decode = tak_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("TAK (Tom's lossless Audio Kompressor)"),
+ .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_U8P,
+ AV_SAMPLE_FMT_S16P,
+ AV_SAMPLE_FMT_S32P,
+ AV_SAMPLE_FMT_NONE },
+};
break;
default:
av_log(avctx, AV_LOG_ERROR, "Bit depth %i is not supported\n", bpp);
- return -1;
+ return AVERROR_INVALIDDATA;
}
- if(s->picture.data[0])
+ if (s->picture.data[0])
avctx->release_buffer(avctx, &s->picture);
- if(av_image_check_size(w, h, 0, avctx))
- return -1;
- if(w != avctx->width || h != avctx->height)
+ if (colors && (colors + first_clr) > 256) {
+ av_log(avctx, AV_LOG_ERROR, "Incorrect palette: %i colors with offset %i\n", colors, first_clr);
+ return AVERROR_INVALIDDATA;
+ }
+
+ if ((ret = av_image_check_size(w, h, 0, avctx)))
+ return ret;
+ if (w != avctx->width || h != avctx->height)
avcodec_set_dimensions(avctx, w, h);
- if ((ret = avctx->get_buffer(avctx, p)) < 0) {
- if(ff_get_buffer(avctx, p) < 0){
++ if ((ret = ff_get_buffer(avctx, p)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ return ret;
}
- if(flags & 0x20){
+
+ if (flags & TGA_TOPTOBOTTOM) {
dst = p->data[0];
stride = p->linesize[0];
- }else{ //image is upside-down
+ } else { //image is upside-down
dst = p->data[0] + p->linesize[0] * (h - 1);
stride = -p->linesize[0];
}
--- /dev/null
- if (avctx->get_buffer(avctx, pic) < 0) {
+/*
+ * Pinnacle TARGA CineWave YUV16 decoder
+ * Copyright (c) 2012 Carl Eugen Hoyos
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
++#include "internal.h"
+
+static av_cold int y216_decode_init(AVCodecContext *avctx)
+{
+ avctx->pix_fmt = AV_PIX_FMT_YUV422P16;
+ avctx->bits_per_raw_sample = 14;
+
+ avctx->coded_frame = avcodec_alloc_frame();
+
+ if (!avctx->coded_frame) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static int y216_decode_frame(AVCodecContext *avctx, void *data,
+ int *data_size, AVPacket *avpkt)
+{
+ AVFrame *pic = avctx->coded_frame;
+ const uint16_t *src = (uint16_t *)avpkt->data;
+ uint16_t *y, *u, *v, aligned_width = FFALIGN(avctx->width, 4);
+ int i, j;
+
+ if (pic->data[0])
+ avctx->release_buffer(avctx, pic);
+
+ if (avpkt->size < 4 * avctx->height * aligned_width) {
+ av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
+ return AVERROR(EINVAL);
+ }
+
+ pic->reference = 0;
+
++ if (ff_get_buffer(avctx, pic) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ pic->key_frame = 1;
+ pic->pict_type = AV_PICTURE_TYPE_I;
+
+ y = (uint16_t *)pic->data[0];
+ u = (uint16_t *)pic->data[1];
+ v = (uint16_t *)pic->data[2];
+
+ for (i = 0; i < avctx->height; i++) {
+ for (j = 0; j < avctx->width >> 1; j++) {
+ u[ j ] = src[4 * j ] << 2 | src[4 * j ] >> 14;
+ y[2 * j ] = src[4 * j + 1] << 2 | src[4 * j + 1] >> 14;
+ v[ j ] = src[4 * j + 2] << 2 | src[4 * j + 2] >> 14;
+ y[2 * j + 1] = src[4 * j + 3] << 2 | src[4 * j + 3] >> 14;
+ }
+
+ y += pic->linesize[0] >> 1;
+ u += pic->linesize[1] >> 1;
+ v += pic->linesize[2] >> 1;
+ src += aligned_width << 1;
+ }
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame *)data = *pic;
+
+ return avpkt->size;
+}
+
+static av_cold int y216_decode_close(AVCodecContext *avctx)
+{
+ if (avctx->coded_frame->data[0])
+ avctx->release_buffer(avctx, avctx->coded_frame);
+
+ av_freep(&avctx->coded_frame);
+
+ return 0;
+}
+
+AVCodec ff_targa_y216_decoder = {
+ .name = "targa_y216",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_TARGA_Y216,
+ .init = y216_decode_init,
+ .decode = y216_decode_frame,
+ .close = y216_decode_close,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Pinnacle TARGA CineWave YUV16"),
+};
#endif
#include "lzw.h"
#include "tiff.h"
+#include "tiff_data.h"
#include "faxcompr.h"
+ #include "internal.h"
#include "mathops.h"
#include "libavutil/attributes.h"
#include "libavutil/intreadwrite.h"
#include <string.h>
#include "avcodec.h"
+ #include "internal.h"
#include "libavutil/internal.h"
+#include "libavutil/xga_font_data.h"
#include "cga_data.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h"
-#include "avcodec.h"
#include "bytestream.h"
+#include "avcodec.h"
+ #include "internal.h"
#include "s3tc.h"
typedef struct TXDContext {
pic->data[i] = pic->base[i] = NULL;
pic->opaque = NULL;
/* Allocate new frame */
- if ((ret = s->get_buffer(s, pic)))
- if (ff_get_buffer(s, pic))
- return -1;
++ if ((ret = ff_get_buffer(s, pic)))
+ return ret;
/* Copy image data from old buffer to new buffer */
av_picture_copy((AVPicture *)pic, (AVPicture *)&temp_pic, s->pix_fmt, s->width,
s->height);
int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f)
{
f->owner = avctx;
- return avctx->get_buffer(avctx, f);
+
+ ff_init_buffer_info(avctx, f);
+
+ return ff_get_buffer(avctx, f);
}
void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f)
*/
#include "avcodec.h"
+ #include "internal.h"
+#include "v210dec.h"
#include "libavutil/bswap.h"
#include "libavutil/internal.h"
#include "libavutil/mem.h"
AVFrame *pic = avctx->coded_frame;
const uint8_t *psrc = avpkt->data;
uint16_t *y, *u, *v;
- int aligned_width = ((avctx->width + 47) / 48) * 48;
- int stride = aligned_width * 8 / 3;
- if (pic->data[0])
- avctx->release_buffer(avctx, pic);
+ if (s->custom_stride )
+ stride = s->custom_stride;
+ else {
+ int aligned_width = ((avctx->width + 47) / 48) * 48;
+ stride = aligned_width * 8 / 3;
+ }
if (avpkt->size < stride * avctx->height) {
- av_log(avctx, AV_LOG_ERROR, "packet too small\n");
- return -1;
+ if ((((avctx->width + 23) / 24) * 24 * 8) / 3 * avctx->height == avpkt->size) {
+ stride = avpkt->size / avctx->height;
+ if (!s->stride_warning_shown)
+ av_log(avctx, AV_LOG_WARNING, "Broken v210 with too small padding (64 byte) detected\n");
+ s->stride_warning_shown = 1;
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "packet too small\n");
+ return -1;
+ }
+ }
+
+ aligned_input = !((uintptr_t)psrc & 0xf) && !(stride & 0xf);
+ if (aligned_input != s->aligned_input) {
+ s->aligned_input = aligned_input;
+ if (HAVE_MMX)
+ v210_x86_init(s);
}
+ if (pic->data[0])
+ avctx->release_buffer(avctx, pic);
+
pic->reference = 0;
- if (avctx->get_buffer(avctx, pic) < 0)
+ if (ff_get_buffer(avctx, pic) < 0)
return -1;
y = (uint16_t*)pic->data[0];
--- /dev/null
- if (avctx->get_buffer(avctx, pic) < 0) {
+/*
+ * v308 decoder
+ * Copyright (c) 2011 Carl Eugen Hoyos
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
++#include "internal.h"
+
+static av_cold int v308_decode_init(AVCodecContext *avctx)
+{
+ avctx->pix_fmt = AV_PIX_FMT_YUV444P;
+
+ if (avctx->width & 1)
+ av_log(avctx, AV_LOG_WARNING, "v308 requires width to be even.\n");
+
+ avctx->coded_frame = avcodec_alloc_frame();
+
+ if (!avctx->coded_frame) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static int v308_decode_frame(AVCodecContext *avctx, void *data,
+ int *data_size, AVPacket *avpkt)
+{
+ AVFrame *pic = avctx->coded_frame;
+ const uint8_t *src = avpkt->data;
+ uint8_t *y, *u, *v;
+ int i, j;
+
+ if (pic->data[0])
+ avctx->release_buffer(avctx, pic);
+
+ if (avpkt->size < 3 * avctx->height * avctx->width) {
+ av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
+ return AVERROR(EINVAL);
+ }
+
+ pic->reference = 0;
+
++ if (ff_get_buffer(avctx, pic) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ pic->key_frame = 1;
+ pic->pict_type = AV_PICTURE_TYPE_I;
+
+ y = pic->data[0];
+ u = pic->data[1];
+ v = pic->data[2];
+
+ for (i = 0; i < avctx->height; i++) {
+ for (j = 0; j < avctx->width; j++) {
+ v[j] = *src++;
+ y[j] = *src++;
+ u[j] = *src++;
+ }
+
+ y += pic->linesize[0];
+ u += pic->linesize[1];
+ v += pic->linesize[2];
+ }
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame *)data = *pic;
+
+ return avpkt->size;
+}
+
+static av_cold int v308_decode_close(AVCodecContext *avctx)
+{
+ if (avctx->coded_frame->data[0])
+ avctx->release_buffer(avctx, avctx->coded_frame);
+
+ av_freep(&avctx->coded_frame);
+
+ return 0;
+}
+
+AVCodec ff_v308_decoder = {
+ .name = "v308",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_V308,
+ .init = v308_decode_init,
+ .decode = v308_decode_frame,
+ .close = v308_decode_close,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed 4:4:4"),
+};
--- /dev/null
- if (avctx->get_buffer(avctx, pic) < 0) {
+/*
+ * v408 decoder
+ * Copyright (c) 2012 Carl Eugen Hoyos
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
++#include "internal.h"
+
+static av_cold int v408_decode_init(AVCodecContext *avctx)
+{
+ avctx->pix_fmt = AV_PIX_FMT_YUVA444P;
+
+ avctx->coded_frame = avcodec_alloc_frame();
+
+ if (!avctx->coded_frame) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static int v408_decode_frame(AVCodecContext *avctx, void *data,
+ int *data_size, AVPacket *avpkt)
+{
+ AVFrame *pic = avctx->coded_frame;
+ const uint8_t *src = avpkt->data;
+ uint8_t *y, *u, *v, *a;
+ int i, j;
+
+ if (pic->data[0])
+ avctx->release_buffer(avctx, pic);
+
+ if (avpkt->size < 4 * avctx->height * avctx->width) {
+ av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
+ return AVERROR(EINVAL);
+ }
+
+ pic->reference = 0;
+
++ if (ff_get_buffer(avctx, pic) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ pic->key_frame = 1;
+ pic->pict_type = AV_PICTURE_TYPE_I;
+
+ y = pic->data[0];
+ u = pic->data[1];
+ v = pic->data[2];
+ a = pic->data[3];
+
+ for (i = 0; i < avctx->height; i++) {
+ for (j = 0; j < avctx->width; j++) {
+ if (avctx->codec_id==AV_CODEC_ID_AYUV) {
+ v[j] = *src++;
+ u[j] = *src++;
+ y[j] = *src++;
+ a[j] = *src++;
+ } else {
+ u[j] = *src++;
+ y[j] = *src++;
+ v[j] = *src++;
+ a[j] = *src++;
+ }
+ }
+
+ y += pic->linesize[0];
+ u += pic->linesize[1];
+ v += pic->linesize[2];
+ a += pic->linesize[3];
+ }
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame *)data = *pic;
+
+ return avpkt->size;
+}
+
+static av_cold int v408_decode_close(AVCodecContext *avctx)
+{
+ if (avctx->coded_frame->data[0])
+ avctx->release_buffer(avctx, avctx->coded_frame);
+
+ av_freep(&avctx->coded_frame);
+
+ return 0;
+}
+
+#if CONFIG_AYUV_DECODER
+AVCodec ff_ayuv_decoder = {
+ .name = "ayuv",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_AYUV,
+ .init = v408_decode_init,
+ .decode = v408_decode_frame,
+ .close = v408_decode_close,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),
+};
+#endif
+#if CONFIG_V408_DECODER
+AVCodec ff_v408_decoder = {
+ .name = "v408",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_V408,
+ .init = v408_decode_init,
+ .decode = v408_decode_frame,
+ .close = v408_decode_close,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),
+};
+#endif
if(c->pic.data[0])
avctx->release_buffer(avctx, &c->pic);
- c->pic.reference = 1;
+ c->pic.reference = 3;
- if(avctx->get_buffer(avctx, &c->pic) < 0){
+ if(ff_get_buffer(avctx, &c->pic) < 0){
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
if (pic->data[0])
avctx->release_buffer(avctx, pic);
+ if (avpkt->size < 4 || avpkt->size - 4 > INT_MAX/8) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid packet size\n");
+ return AVERROR_INVALIDDATA;
+ }
+
/* Allocate buffer */
- if (avctx->get_buffer(avctx, pic) < 0) {
+ if (ff_get_buffer(avctx, pic) < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer.\n");
return AVERROR(ENOMEM);
}
if (p->data[0])
avctx->release_buffer(avctx, p);
+ if(buf_size < 16 + avctx->height + avctx->width*avctx->height*5/8){
+ av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
+ return AVERROR(EINVAL);
+ }
+
p->reference = 0;
- if (avctx->get_buffer(avctx, p) < 0) {
+ if (ff_get_buffer(avctx, p) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
--- /dev/null
- if ((ret = avctx->get_buffer(avctx, &vima->frame)) < 0) {
+/*
+ * LucasArts VIMA decoder
+ * Copyright (c) 2012 Paul B Mahol
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/channel_layout.h"
+#include "avcodec.h"
+#include "get_bits.h"
++#include "internal.h"
+#include "adpcm_data.h"
+
+typedef struct {
+ AVFrame frame;
+ uint16_t predict_table[5786 * 2];
+} VimaContext;
+
+static const uint8_t size_table[] =
+{
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
+};
+
+static const int8_t index_table1[] =
+{
+ -1, 4, -1, 4
+};
+
+static const int8_t index_table2[] =
+{
+ -1, -1, 2, 6, -1, -1, 2, 6
+};
+
+static const int8_t index_table3[] =
+{
+ -1, -1, -1, -1, 1, 2, 4, 6,
+ -1, -1, -1, -1, 1, 2, 4, 6
+};
+
+static const int8_t index_table4[] =
+{
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ 1, 1, 1, 2, 2, 4, 5, 6,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ 1, 1, 1, 2, 2, 4, 5, 6
+};
+
+static const int8_t index_table5[] =
+{
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ 1, 1, 1, 1, 1, 2, 2, 2,
+ 2, 4, 4, 4, 5, 5, 6, 6,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ 1, 1, 1, 1, 1, 2, 2, 2,
+ 2, 4, 4, 4, 5, 5, 6, 6
+};
+
+static const int8_t index_table6[] =
+{
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 2, 2, 2, 2, 2, 2,
+ 2, 2, 4, 4, 4, 4, 4, 4,
+ 5, 5, 5, 5, 6, 6, 6, 6,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 2, 2, 2, 2, 2, 2,
+ 2, 2, 4, 4, 4, 4, 4, 4,
+ 5, 5, 5, 5, 6, 6, 6, 6
+};
+
+static const int8_t* const step_index_tables[] =
+{
+ index_table1, index_table2, index_table3,
+ index_table4, index_table5, index_table6
+};
+
+static av_cold int decode_init(AVCodecContext *avctx)
+{
+ VimaContext *vima = avctx->priv_data;
+ int start_pos;
+
+ for (start_pos = 0; start_pos < 64; start_pos++) {
+ unsigned int dest_pos, table_pos;
+
+ for (table_pos = 0, dest_pos = start_pos;
+ table_pos < FF_ARRAY_ELEMS(ff_adpcm_step_table);
+ table_pos++, dest_pos += 64) {
+ int put = 0, count, table_value;
+
+ table_value = ff_adpcm_step_table[table_pos];
+ for (count = 32; count != 0; count >>= 1) {
+ if (start_pos & count)
+ put += table_value;
+ table_value >>= 1;
+ }
+ vima->predict_table[dest_pos] = put;
+ }
+ }
+
+ avcodec_get_frame_defaults(&vima->frame);
+ avctx->coded_frame = &vima->frame;
+ avctx->sample_fmt = AV_SAMPLE_FMT_S16;
+
+ return 0;
+}
+
+static int decode_frame(AVCodecContext *avctx, void *data,
+ int *got_frame_ptr, AVPacket *pkt)
+{
+ GetBitContext gb;
+ VimaContext *vima = avctx->priv_data;
+ int16_t pcm_data[2];
+ uint32_t samples;
+ int8_t channel_hint[2];
+ int ret, chan, channels = 1;
+
+ if (pkt->size < 13)
+ return AVERROR_INVALIDDATA;
+
+ init_get_bits(&gb, pkt->data, pkt->size * 8);
+
+ samples = get_bits_long(&gb, 32);
+ if (samples == 0xffffffff) {
+ skip_bits_long(&gb, 32);
+ samples = get_bits_long(&gb, 32);
+ }
+
+ if (samples > pkt->size * 2)
+ return AVERROR_INVALIDDATA;
+
+ channel_hint[0] = get_sbits(&gb, 8);
+ if (channel_hint[0] & 0x80) {
+ channel_hint[0] = ~channel_hint[0];
+ channels = 2;
+ }
+ avctx->channels = channels;
+ avctx->channel_layout = (channels == 2) ? AV_CH_LAYOUT_STEREO :
+ AV_CH_LAYOUT_MONO;
+ pcm_data[0] = get_sbits(&gb, 16);
+ if (channels > 1) {
+ channel_hint[1] = get_sbits(&gb, 8);
+ pcm_data[1] = get_sbits(&gb, 16);
+ }
+
+ vima->frame.nb_samples = samples;
++ if ((ret = ff_get_buffer(avctx, &vima->frame)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+
+ for (chan = 0; chan < channels; chan++) {
+ uint16_t *dest = (uint16_t*)vima->frame.data[0] + chan;
+ int step_index = channel_hint[chan];
+ int output = pcm_data[chan];
+ int sample;
+
+ for (sample = 0; sample < samples; sample++) {
+ int lookup_size, lookup, highbit, lowbits;
+
+ step_index = av_clip(step_index, 0, 88);
+ lookup_size = size_table[step_index];
+ lookup = get_bits(&gb, lookup_size);
+ highbit = 1 << (lookup_size - 1);
+ lowbits = highbit - 1;
+
+ if (lookup & highbit)
+ lookup ^= highbit;
+ else
+ highbit = 0;
+
+ if (lookup == lowbits) {
+ output = get_sbits(&gb, 16);
+ } else {
+ int predict_index, diff;
+
+ predict_index = (lookup << (7 - lookup_size)) | (step_index << 6);
+ predict_index = av_clip(predict_index, 0, 5785);
+ diff = vima->predict_table[predict_index];
+ if (lookup)
+ diff += ff_adpcm_step_table[step_index] >> (lookup_size - 1);
+ if (highbit)
+ diff = -diff;
+
+ output = av_clip_int16(output + diff);
+ }
+
+ *dest = output;
+ dest += channels;
+
+ step_index += step_index_tables[lookup_size - 2][lookup];
+ }
+ }
+
+ *got_frame_ptr = 1;
+ *(AVFrame *)data = vima->frame;
+
+ return pkt->size;
+}
+
+AVCodec ff_vima_decoder = {
+ .name = "vima",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_VIMA,
+ .priv_data_size = sizeof(VimaContext),
+ .init = decode_init,
+ .decode = decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("LucasArts VIMA audio"),
+};
if (buf_size < 16)
return buf_size;
- s->frame.reference = 1;
+ s->frame.reference = 3;
- if (avctx->get_buffer(avctx, &s->frame)) {
+ if (ff_get_buffer(avctx, &s->frame)) {
- av_log(s->avctx, AV_LOG_ERROR, "VMD Video: get_buffer() failed\n");
+ av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
return -1;
}
- for (is_alpha=0; is_alpha < 1+s->has_alpha; is_alpha++) {
- int mb_row, mb_col, mb_row_flip, mb_offset = 0;
- int block, y, uv, stride_y, stride_uv;
- int golden_frame = 0;
- int res;
+ res = s->parse_header(s, buf, remaining_buf_size);
+ if (!res)
+ return -1;
- s->modelp = &s->models[is_alpha];
+ if (res == 2) {
+ for (i = 0; i < 4; i++) {
+ if (s->frames[i].data[0])
+ avctx->release_buffer(avctx, &s->frames[i]);
+ }
+ }
- res = s->parse_header(s, buf, remaining_buf_size, &golden_frame);
- if (!res)
+ p->reference = 3;
- if (avctx->get_buffer(avctx, p) < 0) {
++ if (ff_get_buffer(avctx, p) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return -1;
+ }
+
+ if (res == 2) {
+ if (vp56_size_changed(s)) {
+ avctx->release_buffer(avctx, p);
return -1;
+ }
+ }
- if (res == 2) {
- int i;
- for (i = 0; i < 4; i++) {
- if (s->frames[i].data[0])
- avctx->release_buffer(avctx, &s->frames[i]);
- }
- if (is_alpha) {
- avcodec_set_dimensions(avctx, 0, 0);
- return -1;
+ if (s->has_alpha) {
+ int bak_w = avctx->width;
+ int bak_h = avctx->height;
+ int bak_cw = avctx->coded_width;
+ int bak_ch = avctx->coded_height;
+ buf += alpha_offset;
+ remaining_buf_size -= alpha_offset;
+
+ res = s->alpha_context->parse_header(s->alpha_context, buf, remaining_buf_size);
+ if (res != 1) {
+ if(res==2) {
+ av_log(avctx, AV_LOG_ERROR, "Alpha reconfiguration\n");
+ avctx->width = bak_w;
+ avctx->height = bak_h;
+ avctx->coded_width = bak_cw;
+ avctx->coded_height = bak_ch;
}
+ avctx->release_buffer(avctx, p);
+ return -1;
}
+ }
- if (!is_alpha) {
- p->reference = 1;
- if (ff_get_buffer(avctx, p) < 0) {
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
- }
+ avctx->execute2(avctx, ff_vp56_decode_mbs, 0, 0, s->has_alpha + 1);
- if (res == 2)
- if (vp56_size_changed(avctx)) {
- avctx->release_buffer(avctx, p);
- return -1;
- }
- }
+ /* release frames that aren't in use */
+ for (i = 0; i < 4; ++i) {
+ AVFrame *victim = &s->frames[i];
+ if (!victim->data[0])
+ continue;
+ if (victim != s->framep[VP56_FRAME_PREVIOUS] &&
+ victim != s->framep[VP56_FRAME_GOLDEN] &&
+ (!s->has_alpha || victim != s->alpha_context->framep[VP56_FRAME_GOLDEN]))
+ avctx->release_buffer(avctx, victim);
+ }
- if (p->key_frame) {
- p->pict_type = AV_PICTURE_TYPE_I;
- s->default_models_init(s);
- for (block=0; block<s->mb_height*s->mb_width; block++)
- s->macroblocks[block].type = VP56_MB_INTRA;
- } else {
- p->pict_type = AV_PICTURE_TYPE_P;
- vp56_parse_mb_type_models(s);
- s->parse_vector_models(s);
- s->mb_type = VP56_MB_INTER_NOVEC_PF;
- }
+ p->qstride = 0;
+ p->qscale_table = s->qscale_table;
+ p->qscale_type = FF_QSCALE_TYPE_VP56;
+ *(AVFrame*)data = *p;
+ *data_size = sizeof(AVFrame);
+
+ return avpkt->size;
+}
+
+static int ff_vp56_decode_mbs(AVCodecContext *avctx, void *data,
+ int jobnr, int threadnr)
+{
+ VP56Context *s0 = avctx->priv_data;
+ int is_alpha = (jobnr == 1);
+ VP56Context *s = is_alpha ? s0->alpha_context : s0;
+ AVFrame *const p = s->framep[VP56_FRAME_CURRENT];
+ int mb_row, mb_col, mb_row_flip, mb_offset = 0;
+ int block, y, uv, stride_y, stride_uv;
+
+ if (p->key_frame) {
+ p->pict_type = AV_PICTURE_TYPE_I;
+ s->default_models_init(s);
+ for (block=0; block<s->mb_height*s->mb_width; block++)
+ s->macroblocks[block].type = VP56_MB_INTRA;
+ } else {
+ p->pict_type = AV_PICTURE_TYPE_P;
+ vp56_parse_mb_type_models(s);
+ s->parse_vector_models(s);
+ s->mb_type = VP56_MB_INTER_NOVEC_PF;
+ }
- if (s->parse_coeff_models(s))
- goto next;
+ if (s->parse_coeff_models(s))
+ goto next;
- memset(s->prev_dc, 0, sizeof(s->prev_dc));
- s->prev_dc[1][VP56_FRAME_CURRENT] = 128;
- s->prev_dc[2][VP56_FRAME_CURRENT] = 128;
+ memset(s->prev_dc, 0, sizeof(s->prev_dc));
+ s->prev_dc[1][VP56_FRAME_CURRENT] = 128;
+ s->prev_dc[2][VP56_FRAME_CURRENT] = 128;
- for (block=0; block < 4*s->mb_width+6; block++) {
- s->above_blocks[block].ref_frame = VP56_FRAME_NONE;
- s->above_blocks[block].dc_coeff = 0;
- s->above_blocks[block].not_null_dc = 0;
- }
- s->above_blocks[2*s->mb_width + 2].ref_frame = VP56_FRAME_CURRENT;
- s->above_blocks[3*s->mb_width + 4].ref_frame = VP56_FRAME_CURRENT;
+ for (block=0; block < 4*s->mb_width+6; block++) {
+ s->above_blocks[block].ref_frame = VP56_FRAME_NONE;
+ s->above_blocks[block].dc_coeff = 0;
+ s->above_blocks[block].not_null_dc = 0;
+ }
+ s->above_blocks[2*s->mb_width + 2].ref_frame = VP56_FRAME_CURRENT;
+ s->above_blocks[3*s->mb_width + 4].ref_frame = VP56_FRAME_CURRENT;
+
+ stride_y = p->linesize[0];
+ stride_uv = p->linesize[1];
- stride_y = p->linesize[0];
- stride_uv = p->linesize[1];
+ if (s->flip < 0)
+ mb_offset = 7;
+ /* main macroblocks loop */
+ for (mb_row=0; mb_row<s->mb_height; mb_row++) {
if (s->flip < 0)
- mb_offset = 7;
-
- /* main macroblocks loop */
- for (mb_row=0; mb_row<s->mb_height; mb_row++) {
- if (s->flip < 0)
- mb_row_flip = s->mb_height - mb_row - 1;
- else
- mb_row_flip = mb_row;
-
- for (block=0; block<4; block++) {
- s->left_block[block].ref_frame = VP56_FRAME_NONE;
- s->left_block[block].dc_coeff = 0;
- s->left_block[block].not_null_dc = 0;
- }
- memset(s->coeff_ctx, 0, sizeof(s->coeff_ctx));
- memset(s->coeff_ctx_last, 24, sizeof(s->coeff_ctx_last));
-
- s->above_block_idx[0] = 1;
- s->above_block_idx[1] = 2;
- s->above_block_idx[2] = 1;
- s->above_block_idx[3] = 2;
- s->above_block_idx[4] = 2*s->mb_width + 2 + 1;
- s->above_block_idx[5] = 3*s->mb_width + 4 + 1;
-
- s->block_offset[s->frbi] = (mb_row_flip*16 + mb_offset) * stride_y;
- s->block_offset[s->srbi] = s->block_offset[s->frbi] + 8*stride_y;
- s->block_offset[1] = s->block_offset[0] + 8;
- s->block_offset[3] = s->block_offset[2] + 8;
- s->block_offset[4] = (mb_row_flip*8 + mb_offset) * stride_uv;
- s->block_offset[5] = s->block_offset[4];
-
- for (mb_col=0; mb_col<s->mb_width; mb_col++) {
- vp56_decode_mb(s, mb_row, mb_col, is_alpha);
-
- for (y=0; y<4; y++) {
- s->above_block_idx[y] += 2;
- s->block_offset[y] += 16;
- }
+ mb_row_flip = s->mb_height - mb_row - 1;
+ else
+ mb_row_flip = mb_row;
- for (uv=4; uv<6; uv++) {
- s->above_block_idx[uv] += 1;
- s->block_offset[uv] += 8;
- }
- }
+ for (block=0; block<4; block++) {
+ s->left_block[block].ref_frame = VP56_FRAME_NONE;
+ s->left_block[block].dc_coeff = 0;
+ s->left_block[block].not_null_dc = 0;
}
+ memset(s->coeff_ctx, 0, sizeof(s->coeff_ctx));
+ memset(s->coeff_ctx_last, 24, sizeof(s->coeff_ctx_last));
+
+ s->above_block_idx[0] = 1;
+ s->above_block_idx[1] = 2;
+ s->above_block_idx[2] = 1;
+ s->above_block_idx[3] = 2;
+ s->above_block_idx[4] = 2*s->mb_width + 2 + 1;
+ s->above_block_idx[5] = 3*s->mb_width + 4 + 1;
+
+ s->block_offset[s->frbi] = (mb_row_flip*16 + mb_offset) * stride_y;
+ s->block_offset[s->srbi] = s->block_offset[s->frbi] + 8*stride_y;
+ s->block_offset[1] = s->block_offset[0] + 8;
+ s->block_offset[3] = s->block_offset[2] + 8;
+ s->block_offset[4] = (mb_row_flip*8 + mb_offset) * stride_uv;
+ s->block_offset[5] = s->block_offset[4];
+
+ for (mb_col=0; mb_col<s->mb_width; mb_col++) {
+ vp56_decode_mb(s, mb_row, mb_col, is_alpha);
+
+ for (y=0; y<4; y++) {
+ s->above_block_idx[y] += 2;
+ s->block_offset[y] += 16;
+ }
- next:
- if (p->key_frame || golden_frame) {
- if (s->framep[VP56_FRAME_GOLDEN]->data[0] &&
- s->framep[VP56_FRAME_GOLDEN] != s->framep[VP56_FRAME_GOLDEN2])
- avctx->release_buffer(avctx, s->framep[VP56_FRAME_GOLDEN]);
- s->framep[VP56_FRAME_GOLDEN] = p;
+ for (uv=4; uv<6; uv++) {
+ s->above_block_idx[uv] += 1;
+ s->block_offset[uv] += 8;
+ }
}
+ }
- if (s->has_alpha) {
- FFSWAP(AVFrame *, s->framep[VP56_FRAME_GOLDEN],
- s->framep[VP56_FRAME_GOLDEN2]);
- buf += alpha_offset;
- remaining_buf_size -= alpha_offset;
- }
+next:
+ if (p->key_frame || s->golden_frame) {
+ s->framep[VP56_FRAME_GOLDEN] = p;
}
- if (s->framep[VP56_FRAME_PREVIOUS] == s->framep[VP56_FRAME_GOLDEN] ||
- s->framep[VP56_FRAME_PREVIOUS] == s->framep[VP56_FRAME_GOLDEN2]) {
- if (s->framep[VP56_FRAME_UNUSED] != s->framep[VP56_FRAME_GOLDEN] &&
- s->framep[VP56_FRAME_UNUSED] != s->framep[VP56_FRAME_GOLDEN2])
- FFSWAP(AVFrame *, s->framep[VP56_FRAME_PREVIOUS],
- s->framep[VP56_FRAME_UNUSED]);
- else
- FFSWAP(AVFrame *, s->framep[VP56_FRAME_PREVIOUS],
- s->framep[VP56_FRAME_UNUSED2]);
- } else if (s->framep[VP56_FRAME_PREVIOUS]->data[0])
- avctx->release_buffer(avctx, s->framep[VP56_FRAME_PREVIOUS]);
FFSWAP(AVFrame *, s->framep[VP56_FRAME_CURRENT],
s->framep[VP56_FRAME_PREVIOUS]);
-
- p->qstride = 0;
- p->qscale_table = s->qscale_table;
- p->qscale_type = FF_QSCALE_TYPE_VP56;
- *(AVFrame*)data = *p;
- *data_size = sizeof(AVFrame);
-
- return avpkt->size;
+ return 0;
}
av_cold void ff_vp56_init(AVCodecContext *avctx, int flip, int has_alpha)
if (s->frame.data[0])
avctx->release_buffer(avctx, &s->frame);
- if ((res = avctx->get_buffer(avctx, &s->frame))) {
- if (ff_get_buffer(avctx, &s->frame)) {
- av_log(s->avctx, AV_LOG_ERROR, " VQA Video: get_buffer() failed\n");
- return -1;
++ if ((res = ff_get_buffer(avctx, &s->frame))) {
+ av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return res;
}
bytestream2_init(&s->gb, avpkt->data, avpkt->size);
}
/* get output buffer */
- s->frame.nb_samples = s->samples;
+ s->frame.nb_samples = s->samples + 1;
- if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
+ if ((ret = ff_get_buffer(avctx, &s->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
avctx->release_buffer(avctx, p);
p->reference = 0;
- if ((ret = avctx->get_buffer(avctx, p)) < 0) {
- if(ff_get_buffer(avctx, p) < 0){
++ if ((ret = ff_get_buffer(avctx, p)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
av_free(rbuf);
- return -1;
+ return ret;
}
p->key_frame = 1;
--- /dev/null
- if ((ret = avctx->get_buffer(avctx, p)) < 0)
+/*
+ * XBM image format
+ *
+ * Copyright (c) 2012 Paul B Mahol
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
+#include "internal.h"
+#include "mathops.h"
+
+static av_cold int xbm_decode_init(AVCodecContext *avctx)
+{
+ avctx->coded_frame = avcodec_alloc_frame();
+ if (!avctx->coded_frame)
+ return AVERROR(ENOMEM);
+
+ return 0;
+}
+
+static int convert(uint8_t x)
+{
+ if (x >= 'a')
+ x -= 87;
+ else if (x >= 'A')
+ x -= 55;
+ else
+ x -= '0';
+ return x;
+}
+
+static int xbm_decode_frame(AVCodecContext *avctx, void *data,
+ int *data_size, AVPacket *avpkt)
+{
+ AVFrame *p = avctx->coded_frame;
+ const uint8_t *end, *ptr = avpkt->data;
+ uint8_t *dst;
+ int ret, linesize, i, j;
+
+ end = avpkt->data + avpkt->size;
+ while (!avctx->width || !avctx->height) {
+ char name[256];
+ int number, len;
+
+ ptr += strcspn(ptr, "#");
+ if (sscanf(ptr, "#define %256s %u", name, &number) != 2) {
+ av_log(avctx, AV_LOG_ERROR, "Unexpected preprocessor directive\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ len = strlen(name);
+ if ((len > 6) && !avctx->height && !memcmp(name + len - 7, "_height", 7)) {
+ avctx->height = number;
+ } else if ((len > 5) && !avctx->width && !memcmp(name + len - 6, "_width", 6)) {
+ avctx->width = number;
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "Unknown define '%s'\n", name);
+ return AVERROR_INVALIDDATA;
+ }
+ ptr += strcspn(ptr, "\n\r") + 1;
+ }
+
+ avctx->pix_fmt = AV_PIX_FMT_MONOWHITE;
+
+ if (p->data[0])
+ avctx->release_buffer(avctx, p);
+
+ p->reference = 0;
++ if ((ret = ff_get_buffer(avctx, p)) < 0)
+ return ret;
+
+ // goto start of image data
+ ptr += strcspn(ptr, "{") + 1;
+
+ linesize = (avctx->width + 7) / 8;
+ for (i = 0; i < avctx->height; i++) {
+ dst = p->data[0] + i * p->linesize[0];
+ for (j = 0; j < linesize; j++) {
+ uint8_t val;
+
+ ptr += strcspn(ptr, "x") + 1;
+ if (ptr < end && isxdigit(*ptr)) {
+ val = convert(*ptr);
+ ptr++;
+ if (isxdigit(*ptr))
+ val = (val << 4) + convert(*ptr);
+ *dst++ = ff_reverse[val];
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "Unexpected data at '%.8s'\n", ptr);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ }
+
+ p->key_frame = 1;
+ p->pict_type = AV_PICTURE_TYPE_I;
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame *)data = *p;
+
+ return avpkt->size;
+}
+
+static av_cold int xbm_decode_close(AVCodecContext *avctx)
+{
+ if (avctx->coded_frame->data[0])
+ avctx->release_buffer(avctx, avctx->coded_frame);
+
+ av_freep(&avctx->coded_frame);
+
+ return 0;
+}
+
+AVCodec ff_xbm_decoder = {
+ .name = "xbm",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_XBM,
+ .init = xbm_decode_init,
+ .close = xbm_decode_close,
+ .decode = xbm_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("XBM (X BitMap) image"),
+};
--- /dev/null
- if ((ret = avctx->get_buffer(avctx, &xface->frame)) < 0)
+/*
+ * Copyright (c) 1990 James Ashton - Sydney University
+ * Copyright (c) 2012 Stefano Sabatini
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * X-Face decoder, based on libcompface, by James Ashton.
+ */
+
+#include "libavutil/pixdesc.h"
+#include "avcodec.h"
+#include "bytestream.h"
++#include "internal.h"
+#include "xface.h"
+
+static int pop_integer(BigInt *b, const ProbRange *pranges)
+{
+ uint8_t r;
+ int i;
+
+ /* extract the last byte into r, and shift right b by 8 bits */
+ ff_big_div(b, 0, &r);
+
+ i = 0;
+ while (r < pranges->offset || r >= pranges->range + pranges->offset) {
+ pranges++;
+ i++;
+ }
+ ff_big_mul(b, pranges->range);
+ ff_big_add(b, r - pranges->offset);
+ return i;
+}
+
+static void pop_greys(BigInt *b, char *bitmap, int w, int h)
+{
+ if (w > 3) {
+ w /= 2;
+ h /= 2;
+ pop_greys(b, bitmap, w, h);
+ pop_greys(b, bitmap + w, w, h);
+ pop_greys(b, bitmap + XFACE_WIDTH * h, w, h);
+ pop_greys(b, bitmap + XFACE_WIDTH * h + w, w, h);
+ } else {
+ w = pop_integer(b, ff_xface_probranges_2x2);
+ if (w & 1) bitmap[0] = 1;
+ if (w & 2) bitmap[1] = 1;
+ if (w & 4) bitmap[XFACE_WIDTH] = 1;
+ if (w & 8) bitmap[XFACE_WIDTH + 1] = 1;
+ }
+}
+
+static void decode_block(BigInt *b, char *bitmap, int w, int h, int level)
+{
+ switch (pop_integer(b, &ff_xface_probranges_per_level[level][0])) {
+ case XFACE_COLOR_WHITE:
+ return;
+ case XFACE_COLOR_BLACK:
+ pop_greys(b, bitmap, w, h);
+ return;
+ default:
+ w /= 2;
+ h /= 2;
+ level++;
+ decode_block(b, bitmap, w, h, level);
+ decode_block(b, bitmap + w, w, h, level);
+ decode_block(b, bitmap + h * XFACE_WIDTH, w, h, level);
+ decode_block(b, bitmap + w + h * XFACE_WIDTH, w, h, level);
+ return;
+ }
+}
+
+typedef struct XFaceContext {
+ AVFrame frame;
+ uint8_t bitmap[XFACE_PIXELS]; ///< image used internally for decoding
+} XFaceContext;
+
+static av_cold int xface_decode_init(AVCodecContext *avctx)
+{
+ XFaceContext *xface = avctx->priv_data;
+
+ avcodec_get_frame_defaults(&xface->frame);
+
+ if (avctx->width || avctx->height) {
+ if (avctx->width != XFACE_WIDTH || avctx->height != XFACE_HEIGHT) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Size value %dx%d not supported, only accepts a size of %dx%d\n",
+ avctx->width, avctx->height, XFACE_WIDTH, XFACE_HEIGHT);
+ return AVERROR(EINVAL);
+ }
+ }
+
+ avctx->width = XFACE_WIDTH;
+ avctx->height = XFACE_HEIGHT;
+ avctx->pix_fmt = AV_PIX_FMT_MONOWHITE;
+
+ return 0;
+}
+
+static av_cold int xface_decode_close(AVCodecContext *avctx)
+{
+ XFaceContext *xface = avctx->priv_data;
+
+ if (xface->frame.data[0])
+ avctx->release_buffer(avctx, &xface->frame);
+
+ return 0;
+}
+
+static int xface_decode_frame(AVCodecContext *avctx,
+ void *data, int *data_size,
+ AVPacket *avpkt)
+{
+ XFaceContext *xface = avctx->priv_data;
+ int ret, i, j, k;
+ uint8_t byte;
+ BigInt b = {0};
+ char *buf;
+ int64_t c;
+
+ if (xface->frame.data[0])
+ avctx->release_buffer(avctx, &xface->frame);
+ xface->frame.data[0] = NULL;
++ if ((ret = ff_get_buffer(avctx, &xface->frame)) < 0)
+ return ret;
+ xface->frame.reference = 0;
+
+ for (i = 0, k = 0; avpkt->data[i] && i < avpkt->size; i++) {
+ c = avpkt->data[i];
+
+ /* ignore invalid digits */
+ if (c < XFACE_FIRST_PRINT || c > XFACE_LAST_PRINT)
+ continue;
+
+ if (++k > XFACE_MAX_DIGITS) {
+ av_log(avctx, AV_LOG_WARNING,
+ "Buffer is longer than expected, truncating at byte %d\n", i);
+ break;
+ }
+ ff_big_mul(&b, XFACE_PRINTS);
+ ff_big_add(&b, c - XFACE_FIRST_PRINT);
+ }
+
+ /* decode image and put it in bitmap */
+ memset(xface->bitmap, 0, XFACE_PIXELS);
+ buf = xface->bitmap;
+ decode_block(&b, buf, 16, 16, 0);
+ decode_block(&b, buf + 16, 16, 16, 0);
+ decode_block(&b, buf + 32, 16, 16, 0);
+ decode_block(&b, buf + XFACE_WIDTH * 16, 16, 16, 0);
+ decode_block(&b, buf + XFACE_WIDTH * 16 + 16, 16, 16, 0);
+ decode_block(&b, buf + XFACE_WIDTH * 16 + 32, 16, 16, 0);
+ decode_block(&b, buf + XFACE_WIDTH * 32 , 16, 16, 0);
+ decode_block(&b, buf + XFACE_WIDTH * 32 + 16, 16, 16, 0);
+ decode_block(&b, buf + XFACE_WIDTH * 32 + 32, 16, 16, 0);
+
+ ff_xface_generate_face(xface->bitmap, xface->bitmap);
+
+ /* convert image from 1=black 0=white bitmap to MONOWHITE */
+ buf = xface->frame.data[0];
+ for (i = 0, j = 0, k = 0, byte = 0; i < XFACE_PIXELS; i++) {
+ byte += xface->bitmap[i];
+ if (k == 7) {
+ buf[j++] = byte;
+ byte = k = 0;
+ } else {
+ k++;
+ byte <<= 1;
+ }
+ if (j == XFACE_WIDTH/8) {
+ j = 0;
+ buf += xface->frame.linesize[0];
+ }
+ }
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame*)data = xface->frame;
+
+ return avpkt->size;
+}
+
+AVCodec ff_xface_decoder = {
+ .name = "xface",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_XFACE,
+ .priv_data_size = sizeof(XFaceContext),
+ .init = xface_decode_init,
+ .close = xface_decode_close,
+ .decode = xface_decode_frame,
+ .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_MONOWHITE, AV_PIX_FMT_NONE },
+ .long_name = NULL_IF_CONFIG_SMALL("X-face image"),
+};
avctx->release_buffer(avctx, p);
p->reference = 0;
- if ((ret = avctx->get_buffer(avctx, p)) < 0) {
- if(ff_get_buffer(avctx, p) < 0){
++ if ((ret = ff_get_buffer(avctx, p)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ return ret;
}
- p->pict_type= AV_PICTURE_TYPE_I;
- p->key_frame= 1;
+ p->pict_type = AV_PICTURE_TYPE_I;
+ p->key_frame = 1;
Y = a->pic.data[0];
U = a->pic.data[1];
--- /dev/null
- if (avctx->get_buffer(avctx, pic) < 0) {
+/*
+ * y41p decoder
+ *
+ * Copyright (c) 2012 Paul B Mahol
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
++#include "internal.h"
+
+static av_cold int y41p_decode_init(AVCodecContext *avctx)
+{
+ avctx->pix_fmt = AV_PIX_FMT_YUV411P;
+ avctx->bits_per_raw_sample = 12;
+
+ if (avctx->width & 7) {
+ av_log(avctx, AV_LOG_WARNING, "y41p requires width to be divisible by 8.\n");
+ }
+
+ avctx->coded_frame = avcodec_alloc_frame();
+ if (!avctx->coded_frame) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static int y41p_decode_frame(AVCodecContext *avctx, void *data,
+ int *data_size, AVPacket *avpkt)
+{
+ AVFrame *pic = avctx->coded_frame;
+ uint8_t *src = avpkt->data;
+ uint8_t *y, *u, *v;
+ int i, j;
+
+ if (pic->data[0])
+ avctx->release_buffer(avctx, pic);
+
+ if (avpkt->size < 1.5 * avctx->height * avctx->width) {
+ av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
+ return AVERROR(EINVAL);
+ }
+
+ pic->reference = 0;
+
++ if (ff_get_buffer(avctx, pic) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ pic->key_frame = 1;
+ pic->pict_type = AV_PICTURE_TYPE_I;
+
+ for (i = avctx->height - 1; i >= 0 ; i--) {
+ y = &pic->data[0][i * pic->linesize[0]];
+ u = &pic->data[1][i * pic->linesize[1]];
+ v = &pic->data[2][i * pic->linesize[2]];
+ for (j = 0; j < avctx->width; j += 8) {
+ *(u++) = *src++;
+ *(y++) = *src++;
+ *(v++) = *src++;
+ *(y++) = *src++;
+
+ *(u++) = *src++;
+ *(y++) = *src++;
+ *(v++) = *src++;
+ *(y++) = *src++;
+
+ *(y++) = *src++;
+ *(y++) = *src++;
+ *(y++) = *src++;
+ *(y++) = *src++;
+ }
+ }
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame *)data = *pic;
+
+ return avpkt->size;
+}
+
+static av_cold int y41p_decode_close(AVCodecContext *avctx)
+{
+ if (avctx->coded_frame->data[0])
+ avctx->release_buffer(avctx, avctx->coded_frame);
+
+ av_freep(&avctx->coded_frame);
+
+ return 0;
+}
+
+AVCodec ff_y41p_decoder = {
+ .name = "y41p",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_Y41P,
+ .init = y41p_decode_init,
+ .decode = y41p_decode_frame,
+ .close = y41p_decode_close,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Uncompressed YUV 4:1:1 12-bit"),
+};
if (s->frame.data[0])
avctx->release_buffer(avctx, &s->frame);
- ret = avctx->get_buffer(avctx, &s->frame);
+ if (avpkt->size < 4 + 3*s->num_pal_colors) {
+ av_log(avctx, AV_LOG_ERROR, "packet of size %d too small\n", avpkt->size);
+ return AVERROR_INVALIDDATA;
+ }
+
+ ret = ff_get_buffer(avctx, &s->frame);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
--- /dev/null
- if (avctx->get_buffer(avctx, pic) < 0) {
+/*
+ * libquicktime yuv4 decoder
+ *
+ * Copyright (c) 2011 Carl Eugen Hoyos
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
++#include "internal.h"
+
+static av_cold int yuv4_decode_init(AVCodecContext *avctx)
+{
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P;
+
+ avctx->coded_frame = avcodec_alloc_frame();
+
+ if (!avctx->coded_frame) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static int yuv4_decode_frame(AVCodecContext *avctx, void *data,
+ int *data_size, AVPacket *avpkt)
+{
+ AVFrame *pic = avctx->coded_frame;
+ const uint8_t *src = avpkt->data;
+ uint8_t *y, *u, *v;
+ int i, j;
+
+ if (pic->data[0])
+ avctx->release_buffer(avctx, pic);
+
+ if (avpkt->size < 6 * (avctx->width + 1 >> 1) * (avctx->height + 1 >> 1)) {
+ av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
+ return AVERROR(EINVAL);
+ }
+
+ pic->reference = 0;
+
++ if (ff_get_buffer(avctx, pic) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ pic->key_frame = 1;
+ pic->pict_type = AV_PICTURE_TYPE_I;
+
+ y = pic->data[0];
+ u = pic->data[1];
+ v = pic->data[2];
+
+ for (i = 0; i < (avctx->height + 1) >> 1; i++) {
+ for (j = 0; j < (avctx->width + 1) >> 1; j++) {
+ u[j] = *src++ ^ 0x80;
+ v[j] = *src++ ^ 0x80;
+ y[ 2 * j ] = *src++;
+ y[ 2 * j + 1] = *src++;
+ y[pic->linesize[0] + 2 * j ] = *src++;
+ y[pic->linesize[0] + 2 * j + 1] = *src++;
+ }
+
+ y += 2 * pic->linesize[0];
+ u += pic->linesize[1];
+ v += pic->linesize[2];
+ }
+
+ *data_size = sizeof(AVFrame);
+ *(AVFrame *)data = *pic;
+
+ return avpkt->size;
+}
+
+static av_cold int yuv4_decode_close(AVCodecContext *avctx)
+{
+ if (avctx->coded_frame->data[0])
+ avctx->release_buffer(avctx, avctx->coded_frame);
+
+ av_freep(&avctx->coded_frame);
+
+ return 0;
+}
+
+AVCodec ff_yuv4_decoder = {
+ .name = "yuv4",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_YUV4,
+ .init = yuv4_decode_init,
+ .decode = yuv4_decode_frame,
+ .close = yuv4_decode_close,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed 4:2:0"),
+};
if (c->pic.data[0])
avctx->release_buffer(avctx, &c->pic);
- c->pic.reference = 1;
+ c->pic.reference = 3;
c->pic.buffer_hints = FF_BUFFER_HINTS_VALID;
- if ((ret = avctx->get_buffer(avctx, &c->pic)) < 0) {
+ if ((ret = ff_get_buffer(avctx, &c->pic)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
projects / ffmpeg / commitdiff