* Copyright (c) 2005 Roine Gustafsson
* Copyright (c) 2006 Konstantin Shishkov
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "bytestream.h"
#include "bswapdsp.h"
#include "internal.h"
+#include "thread.h"
#define FPS_TAG MKTAG('F', 'P', 'S', 'x')
+#define VLC_BITS 11
/**
* local variable storage
typedef struct FrapsContext {
AVCodecContext *avctx;
BswapDSPContext bdsp;
- AVFrame *frame;
uint8_t *tmpbuf;
int tmpbuf_size;
} FrapsContext;
{
FrapsContext * const s = avctx->priv_data;
- avctx->pix_fmt = AV_PIX_FMT_NONE; /* set in decode_frame */
-
s->avctx = avctx;
s->tmpbuf = NULL;
- s->frame = av_frame_alloc();
- if (!s->frame)
- return AVERROR(ENOMEM);
-
ff_bswapdsp_init(&s->bdsp);
return 0;
for (i = 0; i < 256; i++)
nodes[i].count = bytestream_get_le32(&src);
size -= 1024;
- if ((ret = ff_huff_build_tree(s->avctx, &vlc, 256, nodes, huff_cmp,
+ if ((ret = ff_huff_build_tree(s->avctx, &vlc, 256, VLC_BITS,
+ nodes, huff_cmp,
FF_HUFFMAN_FLAG_ZERO_COUNT)) < 0)
return ret;
/* we have built Huffman table and are ready to decode plane */
s->bdsp.bswap_buf((uint32_t *) s->tmpbuf,
(const uint32_t *) src, size >> 2);
- init_get_bits(&gb, s->tmpbuf, size * 8);
+ if ((ret = init_get_bits8(&gb, s->tmpbuf, size)) < 0)
+ return ret;
+
for (j = 0; j < h; j++) {
for (i = 0; i < w*step; i += step) {
- dst[i] = get_vlc2(&gb, vlc.table, FF_HUFFMAN_BITS, 3);
+ dst[i] = get_vlc2(&gb, vlc.table, VLC_BITS, 3);
/* lines are stored as deltas between previous lines
* and we need to add 0x80 to the first lines of chroma planes
*/
FrapsContext * const s = avctx->priv_data;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
- AVFrame *frame = data;
- AVFrame * const f = s->frame;
+ ThreadFrame frame = { .f = data };
+ AVFrame * const f = data;
uint32_t header;
unsigned int version,header_size;
unsigned int x, y;
const uint32_t *buf32;
uint32_t *luma1,*luma2,*cb,*cr;
uint32_t offs[4];
- int i, j, ret, is_chroma, planes;
- enum AVPixelFormat pix_fmt;
- int prev_pic_bit, expected_size;
+ int i, j, ret, is_chroma;
+ const int planes = 3;
+ uint8_t *out;
if (buf_size < 4) {
av_log(avctx, AV_LOG_ERROR, "Packet is too short\n");
header = AV_RL32(buf);
version = header & 0xff;
header_size = (header & (1<<30))? 8 : 4; /* bit 30 means pad to 8 bytes */
- prev_pic_bit = header & (1U << 31); /* bit 31 means same as previous pic */
if (version > 5) {
av_log(avctx, AV_LOG_ERROR,
return AVERROR_PATCHWELCOME;
}
- buf += 4;
- if (header_size == 8)
- buf += 4;
+ buf += header_size;
- pix_fmt = version & 1 ? AV_PIX_FMT_BGR24 : AV_PIX_FMT_YUVJ420P;
- if (avctx->pix_fmt != pix_fmt && f->data[0]) {
- av_frame_unref(f);
+ if (version < 2) {
+ unsigned needed_size = avctx->width * avctx->height * 3;
+ if (version == 0) needed_size /= 2;
+ needed_size += header_size;
+ /* bit 31 means same as previous pic */
+ if (header & (1U<<31)) {
+ *got_frame = 0;
+ return buf_size;
+ }
+ if (buf_size != needed_size) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Invalid frame length %d (should be %d)\n",
+ buf_size, needed_size);
+ return AVERROR_INVALIDDATA;
+ }
+ } else {
+ /* skip frame */
+ if (buf_size == 8) {
+ *got_frame = 0;
+ return buf_size;
+ }
+ if (AV_RL32(buf) != FPS_TAG || buf_size < planes*1024 + 24) {
+ av_log(avctx, AV_LOG_ERROR, "Fraps: error in data stream\n");
+ return AVERROR_INVALIDDATA;
+ }
+ for (i = 0; i < planes; i++) {
+ offs[i] = AV_RL32(buf + 4 + i * 4);
+ if (offs[i] >= buf_size - header_size || (i && offs[i] <= offs[i - 1] + 1024)) {
+ av_log(avctx, AV_LOG_ERROR, "Fraps: plane %i offset is out of bounds\n", i);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ offs[planes] = buf_size - header_size;
+ for (i = 0; i < planes; i++) {
+ av_fast_padded_malloc(&s->tmpbuf, &s->tmpbuf_size, offs[i + 1] - offs[i] - 1024);
+ if (!s->tmpbuf)
+ return AVERROR(ENOMEM);
+ }
}
- avctx->pix_fmt = pix_fmt;
+
+ f->pict_type = AV_PICTURE_TYPE_I;
+ f->key_frame = 1;
+
+ avctx->pix_fmt = version & 1 ? AV_PIX_FMT_BGR24 : AV_PIX_FMT_YUVJ420P;
avctx->color_range = version & 1 ? AVCOL_RANGE_UNSPECIFIED
: AVCOL_RANGE_JPEG;
+ avctx->colorspace = version & 1 ? AVCOL_SPC_UNSPECIFIED : AVCOL_SPC_BT709;
- expected_size = header_size;
+ if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
+ return ret;
switch (version) {
case 0:
default:
/* Fraps v0 is a reordered YUV420 */
- if (!prev_pic_bit)
- expected_size += avctx->width * avctx->height * 3 / 2;
- if (buf_size != expected_size) {
- av_log(avctx, AV_LOG_ERROR,
- "Invalid frame length %d (should be %d)\n",
- buf_size, expected_size);
- return AVERROR_INVALIDDATA;
- }
-
if (((avctx->width % 8) != 0) || ((avctx->height % 2) != 0)) {
av_log(avctx, AV_LOG_ERROR, "Invalid frame size %dx%d\n",
avctx->width, avctx->height);
return AVERROR_INVALIDDATA;
}
- if ((ret = ff_reget_buffer(avctx, f)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
- return ret;
- }
- f->pict_type = prev_pic_bit ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
- f->key_frame = f->pict_type == AV_PICTURE_TYPE_I;
-
- if (f->pict_type == AV_PICTURE_TYPE_I) {
- buf32 = (const uint32_t*)buf;
- for (y = 0; y < avctx->height / 2; y++) {
- luma1 = (uint32_t*)&f->data[0][ y * 2 * f->linesize[0]];
- luma2 = (uint32_t*)&f->data[0][(y * 2 + 1) * f->linesize[0]];
- cr = (uint32_t*)&f->data[1][ y * f->linesize[1]];
- cb = (uint32_t*)&f->data[2][ y * f->linesize[2]];
- for (x = 0; x < avctx->width; x += 8) {
- *(luma1++) = *(buf32++);
- *(luma1++) = *(buf32++);
- *(luma2++) = *(buf32++);
- *(luma2++) = *(buf32++);
- *(cr++) = *(buf32++);
- *(cb++) = *(buf32++);
- }
+ buf32 = (const uint32_t*)buf;
+ for (y = 0; y < avctx->height / 2; y++) {
+ luma1 = (uint32_t*)&f->data[0][ y * 2 * f->linesize[0] ];
+ luma2 = (uint32_t*)&f->data[0][ (y * 2 + 1) * f->linesize[0] ];
+ cr = (uint32_t*)&f->data[1][ y * f->linesize[1] ];
+ cb = (uint32_t*)&f->data[2][ y * f->linesize[2] ];
+ for (x = 0; x < avctx->width; x += 8) {
+ *luma1++ = *buf32++;
+ *luma1++ = *buf32++;
+ *luma2++ = *buf32++;
+ *luma2++ = *buf32++;
+ *cr++ = *buf32++;
+ *cb++ = *buf32++;
}
}
break;
case 1:
/* Fraps v1 is an upside-down BGR24 */
- if (!prev_pic_bit)
- expected_size += avctx->width * avctx->height * 3;
- if (buf_size != expected_size) {
- av_log(avctx, AV_LOG_ERROR,
- "Invalid frame length %d (should be %d)\n",
- buf_size, expected_size);
- return AVERROR_INVALIDDATA;
- }
-
- if ((ret = ff_reget_buffer(avctx, f)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
- return ret;
- }
- f->pict_type = prev_pic_bit ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I;
- f->key_frame = f->pict_type == AV_PICTURE_TYPE_I;
-
- if (f->pict_type == AV_PICTURE_TYPE_I) {
for (y = 0; y<avctx->height; y++)
memcpy(&f->data[0][(avctx->height - y - 1) * f->linesize[0]],
&buf[y * avctx->width * 3],
3 * avctx->width);
- }
break;
case 2:
* Fraps v2 is Huffman-coded YUV420 planes
* Fraps v4 is virtually the same
*/
- planes = 3;
- if ((ret = ff_reget_buffer(avctx, f)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
- return ret;
- }
- /* skip frame */
- if (buf_size == 8) {
- f->pict_type = AV_PICTURE_TYPE_P;
- f->key_frame = 0;
- break;
- }
- f->pict_type = AV_PICTURE_TYPE_I;
- f->key_frame = 1;
- if ((AV_RL32(buf) != FPS_TAG) || (buf_size < (planes * 1024 + 24))) {
- av_log(avctx, AV_LOG_ERROR, "Fraps: error in data stream\n");
- return AVERROR_INVALIDDATA;
- }
- for (i = 0; i < planes; i++) {
- offs[i] = AV_RL32(buf + 4 + i * 4);
- if (offs[i] >= buf_size || (i && offs[i] <= offs[i - 1] + 1024)) {
- av_log(avctx, AV_LOG_ERROR, "Fraps: plane %i offset is out of bounds\n", i);
- return AVERROR_INVALIDDATA;
- }
- }
- offs[planes] = buf_size;
for (i = 0; i < planes; i++) {
is_chroma = !!i;
- av_fast_padded_malloc(&s->tmpbuf, &s->tmpbuf_size,
- offs[i + 1] - offs[i] - 1024);
- if (!s->tmpbuf)
- return AVERROR(ENOMEM);
if ((ret = fraps2_decode_plane(s, f->data[i], f->linesize[i],
avctx->width >> is_chroma,
avctx->height >> is_chroma,
case 3:
case 5:
/* Virtually the same as version 4, but is for RGB24 */
- planes = 3;
- if ((ret = ff_reget_buffer(avctx, f)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
- return ret;
- }
- /* skip frame */
- if (buf_size == 8) {
- f->pict_type = AV_PICTURE_TYPE_P;
- f->key_frame = 0;
- break;
- }
- f->pict_type = AV_PICTURE_TYPE_I;
- f->key_frame = 1;
- if ((AV_RL32(buf) != FPS_TAG)||(buf_size < (planes*1024 + 24))) {
- av_log(avctx, AV_LOG_ERROR, "Fraps: error in data stream\n");
- return AVERROR_INVALIDDATA;
- }
- for (i = 0; i < planes; i++) {
- offs[i] = AV_RL32(buf + 4 + i * 4);
- if (offs[i] >= buf_size || (i && offs[i] <= offs[i - 1] + 1024)) {
- av_log(avctx, AV_LOG_ERROR, "Fraps: plane %i offset is out of bounds\n", i);
- return AVERROR_INVALIDDATA;
- }
- }
- offs[planes] = buf_size;
for (i = 0; i < planes; i++) {
- av_fast_padded_malloc(&s->tmpbuf, &s->tmpbuf_size,
- offs[i + 1] - offs[i] - 1024);
- if (!s->tmpbuf)
- return AVERROR(ENOMEM);
if ((ret = fraps2_decode_plane(s, f->data[0] + i + (f->linesize[0] * (avctx->height - 1)),
-f->linesize[0], avctx->width, avctx->height,
buf + offs[i], offs[i + 1] - offs[i], 0, 3)) < 0) {
return ret;
}
}
+ out = f->data[0];
// convert pseudo-YUV into real RGB
for (j = 0; j < avctx->height; j++) {
- for (i = 0; i < avctx->width; i++) {
- f->data[0][0 + i*3 + j*f->linesize[0]] += f->data[0][1 + i*3 + j*f->linesize[0]];
- f->data[0][2 + i*3 + j*f->linesize[0]] += f->data[0][1 + i*3 + j*f->linesize[0]];
+ uint8_t *line_end = out + 3*avctx->width;
+ while (out < line_end) {
+ out[0] += out[1];
+ out[2] += out[1];
+ out += 3;
}
+ out += f->linesize[0] - 3*avctx->width;
}
break;
}
- if ((ret = av_frame_ref(frame, f)) < 0)
- return ret;
*got_frame = 1;
return buf_size;
{
FrapsContext *s = (FrapsContext*)avctx->priv_data;
- av_frame_free(&s->frame);
-
av_freep(&s->tmpbuf);
return 0;
}
.init = decode_init,
.close = decode_end,
.decode = decode_frame,
- .capabilities = AV_CODEC_CAP_DR1,
+ .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
};
projects / ffmpeg / blobdiff