* Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
* Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
*
- * 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
*/
static int decode_residual_block(AVSContext *h, GetBitContext *gb,
const struct dec_2dvlc *r, int esc_golomb_order,
int qp, uint8_t *dst, int stride) {
- int i, level_code, esc_code, level, run, mask;
+ int i, esc_code, level, mask;
+ unsigned int level_code, run;
DCTELEM level_buf[65];
uint8_t run_buf[65];
DCTELEM *block = h->block;
level_code = get_ue_code(gb,r->golomb_order);
if(level_code >= ESCAPE_CODE) {
run = ((level_code - ESCAPE_CODE) >> 1) + 1;
+ if(run > 64)
+ return -1;
esc_code = get_ue_code(gb,esc_golomb_order);
level = esc_code + (run > r->max_run ? 1 : r->level_add[run]);
while(level > r->inc_limit)
r++;
mask = -(level_code & 1);
level = (level^mask) - mask;
- } else if (level_code >= 0) {
+ } else {
level = r->rltab[level_code][0];
if(!level) //end of block signal
break;
run = r->rltab[level_code][1];
r += r->rltab[level_code][2];
- } else {
- break;
}
level_buf[i] = level;
run_buf[i] = run;
/* get coded block pattern */
int cbp= get_ue_golomb(&h->s.gb);
- if(cbp > 63){
+ if(cbp > 63U){
av_log(h->s.avctx, AV_LOG_ERROR, "illegal inter cbp\n");
return -1;
}
/* get coded block pattern */
if(h->pic_type == AV_PICTURE_TYPE_I)
cbp_code = get_ue_golomb(gb);
- if(cbp_code > 63){
+ if(cbp_code > 63U){
av_log(h->s.avctx, AV_LOG_ERROR, "illegal intra cbp\n");
return -1;
}
if (!s->low_delay && h->DPB[0].f.data[0]) {
*data_size = sizeof(AVPicture);
*picture = h->DPB[0].f;
+ memset(&h->DPB[0], 0, sizeof(h->DPB[0]));
}
return 0;
}
* Copyright (C) 2006 Benjamin Larsson
* Copyright (C) 2007 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 "libavutil/common.h"
#include "libavutil/intmath.h"
#include "libavutil/intreadwrite.h"
+ #include "libavutil/mathematics.h"
#include "libavutil/audioconvert.h"
#include "avcodec.h"
#include "dsputil.h"
/* Primary audio coding header */
int subframes; ///< number of subframes
- int is_channels_set; ///< check for if the channel number is already set
int total_channels; ///< number of channels including extensions
int prim_channels; ///< number of primary audio channels
int subband_activity[DCA_PRIM_CHANNELS_MAX]; ///< subband activity count
/* Low frequency effect data */
if (!base_channel && s->lfe) {
+ int quant7;
/* LFE samples */
int lfe_samples = 2 * s->lfe * (4 + block_index);
int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]);
}
/* Scale factor index */
- skip_bits(&s->gb, 1);
- s->lfe_scale_factor = scale_factor_quant7[get_bits(&s->gb, 7)];
+ quant7 = get_bits(&s->gb, 8);
+ if (quant7 > 127) {
+ av_log_ask_for_sample(s->avctx, "LFEScaleIndex larger than 127\n");
+ return AVERROR_INVALIDDATA;
+ }
+ s->lfe_scale_factor = scale_factor_quant7[quant7];
/* Quantization step size * scale factor */
lfe_scale = 0.035 * s->lfe_scale_factor;
{
int header_pos = get_bits_count(&s->gb);
int header_size;
- int channels;
+ int channels = 0;
int embedded_stereo = 0;
int embedded_6ch = 0;
int drc_code_present;
- int extensions_mask;
+ int av_uninit(extensions_mask);
int i, j;
if (get_bits_left(&s->gb) < 16)
s->output = DCA_STEREO;
avctx->channel_layout = AV_CH_LAYOUT_STEREO;
}
+ else if (avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE) {
+ static const int8_t dca_channel_order_native[9] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
+ s->channel_order_tab = dca_channel_order_native;
+ }
} else {
av_log(avctx, AV_LOG_ERROR, "Non standard configuration %d !\n", s->amode);
return AVERROR_INVALIDDATA;
}
-
- /* There is nothing that prevents a dts frame to change channel configuration
- but Libav doesn't support that so only set the channels if it is previously
- unset. Ideally during the first probe for channels the crc should be checked
- and only set avctx->channels when the crc is ok. Right now the decoder could
- set the channels based on a broken first frame.*/
- if (s->is_channels_set == 0) {
- s->is_channels_set = 1;
- avctx->channels = channels;
- }
if (avctx->channels != channels) {
- av_log(avctx, AV_LOG_ERROR, "DCA decoder does not support number of "
- "channels changing in stream. Skipping frame.\n");
- return AVERROR_PATCHWELCOME;
+ if (avctx->channels)
+ av_log(avctx, AV_LOG_INFO, "Number of channels changed in DCA decoder (%d -> %d)\n", avctx->channels, channels);
+ avctx->channels = channels;
}
/* get output buffer */
* see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
* the algorithm used
*
- * 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
*/
DSPContext dsp;
}HYuvContext;
- static const unsigned char classic_shift_luma[] = {
+ #define classic_shift_luma_table_size 42
+ static const unsigned char classic_shift_luma[classic_shift_luma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = {
34,36,35,69,135,232,9,16,10,24,11,23,12,16,13,10,14,8,15,8,
16,8,17,20,16,10,207,206,205,236,11,8,10,21,9,23,8,8,199,70,
- 69,68, 0
+ 69,68, 0,
+ 0,0,0,0,0,0,0,0,
};
- static const unsigned char classic_shift_chroma[] = {
+ #define classic_shift_chroma_table_size 59
+ static const unsigned char classic_shift_chroma[classic_shift_chroma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = {
66,36,37,38,39,40,41,75,76,77,110,239,144,81,82,83,84,85,118,183,
56,57,88,89,56,89,154,57,58,57,26,141,57,56,58,57,58,57,184,119,
- 214,245,116,83,82,49,80,79,78,77,44,75,41,40,39,38,37,36,34, 0
+ 214,245,116,83,82,49,80,79,78,77,44,75,41,40,39,38,37,36,34, 0,
+ 0,0,0,0,0,0,0,0,
};
static const unsigned char classic_add_luma[256] = {
}
}
-static inline void sub_left_prediction_bgr32(HYuvContext *s, uint8_t *dst, uint8_t *src, int w, int *red, int *green, int *blue){
+static inline void sub_left_prediction_bgr32(HYuvContext *s, uint8_t *dst, uint8_t *src, int w, int *red, int *green, int *blue, int *alpha){
int i;
- int r,g,b;
+ int r,g,b,a;
r= *red;
g= *green;
b= *blue;
+ a= *alpha;
for(i=0; i<FFMIN(w,4); i++){
const int rt= src[i*4+R];
const int gt= src[i*4+G];
const int bt= src[i*4+B];
+ const int at= src[i*4+A];
dst[i*4+R]= rt - r;
dst[i*4+G]= gt - g;
dst[i*4+B]= bt - b;
+ dst[i*4+A]= at - a;
r = rt;
g = gt;
b = bt;
+ a = at;
}
s->dsp.diff_bytes(dst+16, src+16, src+12, w*4-16);
*red= src[(w-1)*4+R];
*green= src[(w-1)*4+G];
*blue= src[(w-1)*4+B];
+ *alpha= src[(w-1)*4+A];
+}
+
+static inline void sub_left_prediction_rgb24(HYuvContext *s, uint8_t *dst, uint8_t *src, int w, int *red, int *green, int *blue){
+ int i;
+ int r,g,b;
+ r= *red;
+ g= *green;
+ b= *blue;
+ for(i=0; i<FFMIN(w,16); i++){
+ const int rt= src[i*3+0];
+ const int gt= src[i*3+1];
+ const int bt= src[i*3+2];
+ dst[i*3+0]= rt - r;
+ dst[i*3+1]= gt - g;
+ dst[i*3+2]= bt - b;
+ r = rt;
+ g = gt;
+ b = bt;
+ }
+ s->dsp.diff_bytes(dst+48, src+48, src+48-3, w*3-48);
+ *red= src[(w-1)*3+0];
+ *green= src[(w-1)*3+1];
+ *blue= src[(w-1)*3+2];
}
static int read_len_table(uint8_t *dst, GetBitContext *gb){
GetBitContext gb;
int i;
- init_get_bits(&gb, classic_shift_luma, (sizeof(classic_shift_luma)-8)*8);
+ init_get_bits(&gb, classic_shift_luma, classic_shift_luma_table_size*8);
if(read_len_table(s->len[0], &gb)<0)
return -1;
- init_get_bits(&gb, classic_shift_chroma, (sizeof(classic_shift_chroma)-8)*8);
+ init_get_bits(&gb, classic_shift_chroma, classic_shift_chroma_table_size*8);
if(read_len_table(s->len[1], &gb)<0)
return -1;
memset(s->vlc, 0, 3*sizeof(VLC));
avctx->coded_frame= &s->picture;
+ avcodec_get_frame_defaults(&s->picture);
s->interlaced= s->height > 288;
s->bgr32=1;
s->bitstream_bpp= 16;
break;
case PIX_FMT_RGB32:
+ s->bitstream_bpp= 32;
+ break;
+ case PIX_FMT_RGB24:
s->bitstream_bpp= 24;
break;
default:
}
}
-static int encode_bgr_bitstream(HYuvContext *s, int count){
+static inline int encode_bgra_bitstream(HYuvContext *s, int count, int planes){
int i;
- if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < 3*4*count){
+ if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < 4*planes*count){
av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
return -1;
}
#define LOAD3\
- int g= s->temp[0][4*i+G];\
- int b= (s->temp[0][4*i+B] - g) & 0xff;\
- int r= (s->temp[0][4*i+R] - g) & 0xff;
+ int g= s->temp[0][planes==3 ? 3*i+1 : 4*i+G];\
+ int b= (s->temp[0][planes==3 ? 3*i+2 : 4*i+B] - g) & 0xff;\
+ int r= (s->temp[0][planes==3 ? 3*i+0 : 4*i+R] - g) & 0xff;\
+ int a= s->temp[0][planes*i+A];
#define STAT3\
s->stats[0][b]++;\
s->stats[1][g]++;\
- s->stats[2][r]++;
+ s->stats[2][r]++;\
+ if(planes==4) s->stats[2][a]++;
#define WRITE3\
put_bits(&s->pb, s->len[1][g], s->bits[1][g]);\
put_bits(&s->pb, s->len[0][b], s->bits[0][b]);\
- put_bits(&s->pb, s->len[2][r], s->bits[2][r]);
+ put_bits(&s->pb, s->len[2][r], s->bits[2][r]);\
+ if(planes==4) put_bits(&s->pb, s->len[2][a], s->bits[2][a]);
if((s->flags&CODEC_FLAG_PASS1) && (s->avctx->flags2&CODEC_FLAG2_NO_OUTPUT)){
for(i=0; i<count; i++){
const int stride = -p->linesize[0];
const int fake_stride = -fake_ystride;
int y;
- int leftr, leftg, leftb;
+ int leftr, leftg, leftb, lefta;
+ put_bits(&s->pb, 8, lefta= data[A]);
put_bits(&s->pb, 8, leftr= data[R]);
put_bits(&s->pb, 8, leftg= data[G]);
put_bits(&s->pb, 8, leftb= data[B]);
- put_bits(&s->pb, 8, 0);
- sub_left_prediction_bgr32(s, s->temp[0], data+4, width-1, &leftr, &leftg, &leftb);
- encode_bgr_bitstream(s, width-1);
+ sub_left_prediction_bgr32(s, s->temp[0], data+4, width-1, &leftr, &leftg, &leftb, &lefta);
+ encode_bgra_bitstream(s, width-1, 4);
for(y=1; y<s->height; y++){
uint8_t *dst = data + y*stride;
if(s->predictor == PLANE && s->interlaced < y){
s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width*4);
- sub_left_prediction_bgr32(s, s->temp[0], s->temp[1], width, &leftr, &leftg, &leftb);
+ sub_left_prediction_bgr32(s, s->temp[0], s->temp[1], width, &leftr, &leftg, &leftb, &lefta);
+ }else{
+ sub_left_prediction_bgr32(s, s->temp[0], dst, width, &leftr, &leftg, &leftb, &lefta);
+ }
+ encode_bgra_bitstream(s, width, 4);
+ }
+ }else if(avctx->pix_fmt == PIX_FMT_RGB24){
+ uint8_t *data = p->data[0] + (height-1)*p->linesize[0];
+ const int stride = -p->linesize[0];
+ const int fake_stride = -fake_ystride;
+ int y;
+ int leftr, leftg, leftb;
+
+ put_bits(&s->pb, 8, leftr= data[0]);
+ put_bits(&s->pb, 8, leftg= data[1]);
+ put_bits(&s->pb, 8, leftb= data[2]);
+ put_bits(&s->pb, 8, 0);
+
+ sub_left_prediction_rgb24(s, s->temp[0], data+3, width-1, &leftr, &leftg, &leftb);
+ encode_bgra_bitstream(s, width-1, 3);
+
+ for(y=1; y<s->height; y++){
+ uint8_t *dst = data + y*stride;
+ if(s->predictor == PLANE && s->interlaced < y){
+ s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width*3);
+ sub_left_prediction_rgb24(s, s->temp[0], s->temp[1], width, &leftr, &leftg, &leftb);
}else{
- sub_left_prediction_bgr32(s, s->temp[0], dst, width, &leftr, &leftg, &leftb);
+ sub_left_prediction_rgb24(s, s->temp[0], dst, width, &leftr, &leftg, &leftb);
}
- encode_bgr_bitstream(s, width);
+ encode_bgra_bitstream(s, width, 3);
}
}else{
av_log(avctx, AV_LOG_ERROR, "Format not supported!\n");
.init = encode_init,
.encode2 = encode_frame,
.close = encode_end,
- .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV422P, PIX_FMT_RGB32, PIX_FMT_NONE},
+ .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV422P, PIX_FMT_RGB24, PIX_FMT_RGB32, PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"),
};
#endif
.init = encode_init,
.encode2 = encode_frame,
.close = encode_end,
- .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_RGB32, PIX_FMT_NONE},
+ .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_RGB24, PIX_FMT_RGB32, PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"),
};
#endif
* PNG image format
* Copyright (c) 2003 Fabrice Bellard
*
- * 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
*/
+
+//#define DEBUG
+
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "bytestream.h"
#include "pngdsp.h"
/* TODO:
- * - add 2, 4 and 16 bit depth support
+ * - add 16 bit depth support
*/
#include <zlib.h>
typedef struct PNGDecContext {
PNGDSPContext dsp;
- const uint8_t *bytestream;
- const uint8_t *bytestream_start;
- const uint8_t *bytestream_end;
+ GetByteContext gb;
AVFrame picture1, picture2;
AVFrame *current_picture, *last_picture;
/* Mask to determine which y pixels can be written in a pass */
static const uint8_t png_pass_dsp_ymask[NB_PASSES] = {
- 0xff, 0xff, 0x0f, 0xcc, 0x33, 0xff, 0x55,
+ 0xff, 0xff, 0x0f, 0xff, 0x33, 0xff, 0x55,
};
/* Mask to determine which pixels to overwrite while displaying */
dsp_mask = png_pass_dsp_mask[pass];
switch(bits_per_pixel) {
case 1:
- /* we must initialize the line to zero before writing to it */
- if (pass == 0)
- memset(dst, 0, (width + 7) >> 3);
src_x = 0;
for(x = 0; x < width; x++) {
j = (x & 7);
if ((dsp_mask << j) & 0x80) {
b = (src[src_x >> 3] >> (7 - (src_x & 7))) & 1;
+ dst[x >> 3] &= 0xFF7F>>j;
dst[x >> 3] |= b << (7 - j);
}
if ((mask << j) & 0x80)
src_x++;
}
break;
+ case 2:
+ src_x = 0;
+ for(x = 0; x < width; x++) {
+ int j2 = 2*(x&3);
+ j = (x & 7);
+ if ((dsp_mask << j) & 0x80) {
+ b = (src[src_x >> 2] >> (6 - 2*(src_x & 3))) & 3;
+ dst[x >> 2] &= 0xFF3F>>j2;
+ dst[x >> 2] |= b << (6 - j2);
+ }
+ if ((mask << j) & 0x80)
+ src_x++;
+ }
+ break;
+ case 4:
+ src_x = 0;
+ for(x = 0; x < width; x++) {
+ int j2 = 4*(x&1);
+ j = (x & 7);
+ if ((dsp_mask << j) & 0x80) {
+ b = (src[src_x >> 1] >> (4 - 4*(src_x & 1))) & 15;
+ dst[x >> 1] &= 0xFF0F>>j2;
+ dst[x >> 1] |= b << (4 - j2);
+ }
+ if ((mask << j) & 0x80)
+ src_x++;
+ }
+ break;
default:
bpp = bits_per_pixel >> 3;
d = dst;
s = src;
- if (color_type == PNG_COLOR_TYPE_RGB_ALPHA) {
- for(x = 0; x < width; x++) {
- j = x & 7;
- if ((dsp_mask << j) & 0x80) {
- *(uint32_t *)d = (s[3] << 24) | (s[0] << 16) | (s[1] << 8) | s[2];
- }
- d += bpp;
- if ((mask << j) & 0x80)
- s += bpp;
- }
- } else {
for(x = 0; x < width; x++) {
j = x & 7;
if ((dsp_mask << j) & 0x80) {
if ((mask << j) & 0x80)
s += bpp;
}
- }
break;
}
}
p = last[i];
dst[i] = p + src[i];
}
- if(bpp > 1 && size > 4) {
+ if(bpp > 2 && size > 4) {
// would write off the end of the array if we let it process the last pixel with bpp=3
int w = bpp==4 ? size : size-3;
dsp->add_paeth_prediction(dst+i, src+i, last+i, w-i, bpp);
}
}
-static av_always_inline void convert_to_rgb32_loco(uint8_t *dst, const uint8_t *src, int width, int loco)
-{
- int j;
- unsigned int r, g, b, a;
-
- for(j = 0;j < width; j++) {
- r = src[0];
- g = src[1];
- b = src[2];
- a = src[3];
- if(loco) {
- r = (r+g)&0xff;
- b = (b+g)&0xff;
- }
- *(uint32_t *)dst = (a << 24) | (r << 16) | (g << 8) | b;
- dst += 4;
- src += 4;
- }
+/* This used to be called "deloco" in FFmpeg
+ * and is actually an inverse reversible colorspace transformation */
+#define YUV2RGB(NAME, TYPE) \
+static void deloco_ ## NAME(TYPE *dst, int size, int alpha) \
+{ \
+ int i; \
+ for (i = 0; i < size; i += 3 + alpha) { \
+ int g = dst [i+1]; \
+ dst[i+0] += g; \
+ dst[i+2] += g; \
+ } \
}
-static void convert_to_rgb32(uint8_t *dst, const uint8_t *src, int width, int loco)
-{
- if(loco)
- convert_to_rgb32_loco(dst, src, width, 1);
- else
- convert_to_rgb32_loco(dst, src, width, 0);
-}
-
-static void deloco_rgb24(uint8_t *dst, int size)
-{
- int i;
- for(i=0; i<size; i+=3) {
- int g = dst[i+1];
- dst[i+0] += g;
- dst[i+2] += g;
- }
-}
+YUV2RGB(rgb8, uint8_t)
+YUV2RGB(rgb16, uint16_t)
/* process exactly one decompressed row */
static void png_handle_row(PNGDecContext *s)
if (!s->interlace_type) {
ptr = s->image_buf + s->image_linesize * s->y;
- /* need to swap bytes correctly for RGB_ALPHA */
- if (s->color_type == PNG_COLOR_TYPE_RGB_ALPHA) {
- png_filter_row(&s->dsp, s->tmp_row, s->crow_buf[0], s->crow_buf + 1,
- s->last_row, s->row_size, s->bpp);
- convert_to_rgb32(ptr, s->tmp_row, s->width, s->filter_type == PNG_FILTER_TYPE_LOCO);
- FFSWAP(uint8_t*, s->last_row, s->tmp_row);
- } else {
- /* in normal case, we avoid one copy */
if (s->y == 0)
last_row = s->last_row;
else
png_filter_row(&s->dsp, ptr, s->crow_buf[0], s->crow_buf + 1,
last_row, s->row_size, s->bpp);
- }
/* loco lags by 1 row so that it doesn't interfere with top prediction */
- if (s->filter_type == PNG_FILTER_TYPE_LOCO &&
- s->color_type == PNG_COLOR_TYPE_RGB && s->y > 0)
- deloco_rgb24(ptr - s->image_linesize, s->row_size);
+ if (s->filter_type == PNG_FILTER_TYPE_LOCO && s->y > 0) {
+ if (s->bit_depth == 16) {
+ deloco_rgb16((uint16_t *)(ptr - s->image_linesize), s->row_size / 2,
+ s->color_type == PNG_COLOR_TYPE_RGB_ALPHA);
+ } else {
+ deloco_rgb8(ptr - s->image_linesize, s->row_size,
+ s->color_type == PNG_COLOR_TYPE_RGB_ALPHA);
+ }
+ }
s->y++;
if (s->y == s->height) {
s->state |= PNG_ALLIMAGE;
- if (s->filter_type == PNG_FILTER_TYPE_LOCO &&
- s->color_type == PNG_COLOR_TYPE_RGB)
- deloco_rgb24(ptr, s->row_size);
+ if (s->filter_type == PNG_FILTER_TYPE_LOCO) {
+ if (s->bit_depth == 16) {
+ deloco_rgb16((uint16_t *)ptr, s->row_size / 2,
+ s->color_type == PNG_COLOR_TYPE_RGB_ALPHA);
+ } else {
+ deloco_rgb8(ptr, s->row_size,
+ s->color_type == PNG_COLOR_TYPE_RGB_ALPHA);
+ }
+ }
}
} else {
got_line = 0;
got_line = 1;
}
if ((png_pass_dsp_ymask[s->pass] << (s->y & 7)) & 0x80) {
- /* NOTE: RGB32 is handled directly in png_put_interlaced_row */
png_put_interlaced_row(ptr, s->width, s->bits_per_pixel, s->pass,
s->color_type, s->last_row);
}
s->y++;
if (s->y == s->height) {
+ memset(s->last_row, 0, s->row_size);
for(;;) {
if (s->pass == NB_PASSES - 1) {
s->state |= PNG_ALLIMAGE;
static int png_decode_idat(PNGDecContext *s, int length)
{
int ret;
- s->zstream.avail_in = length;
- s->zstream.next_in = s->bytestream;
- s->bytestream += length;
-
- if(s->bytestream > s->bytestream_end)
- return -1;
+ s->zstream.avail_in = FFMIN(length, bytestream2_get_bytes_left(&s->gb));
+ s->zstream.next_in = s->gb.buffer;
+ bytestream2_skip(&s->gb, length);
/* decode one line if possible */
while (s->zstream.avail_in > 0) {
avctx->coded_frame= s->current_picture;
p = s->current_picture;
- s->bytestream_start=
- s->bytestream= buf;
- s->bytestream_end= buf + buf_size;
-
/* check signature */
- if (memcmp(s->bytestream, ff_pngsig, 8) != 0 &&
- memcmp(s->bytestream, ff_mngsig, 8) != 0) {
+ if (buf_size < 8 ||
+ memcmp(buf, ff_pngsig, 8) != 0 &&
- memcmp(buf, ff_mngsig, 8) != 0)
++ memcmp(buf, ff_mngsig, 8) != 0) {
+ av_log(avctx, AV_LOG_ERROR, "Missing png signature\n");
return -1;
- s->bytestream+= 8;
+ }
+
+ bytestream2_init(&s->gb, buf + 8, buf_size - 8);
s->y=
s->state=0;
// memset(s, 0, sizeof(PNGDecContext));
if (ret != Z_OK)
return -1;
for(;;) {
- int tag32;
- if (s->bytestream >= s->bytestream_end)
+ if (bytestream2_get_bytes_left(&s->gb) <= 0)
goto fail;
- length = bytestream_get_be32(&s->bytestream);
- if (length > 0x7fffffff || length > s->bytestream_end - s->bytestream)
++
+ length = bytestream2_get_be32(&s->gb);
- if (length > 0x7fffffff)
++ if (length > 0x7fffffff || length > bytestream2_get_bytes_left(&s->gb))
goto fail;
- tag32 = bytestream_get_be32(&s->bytestream);
- tag = av_bswap32(tag32);
+ tag = bytestream2_get_le32(&s->gb);
- av_dlog(avctx, "png: tag=%c%c%c%c length=%u\n",
+ if (avctx->debug & FF_DEBUG_STARTCODE)
+ av_log(avctx, AV_LOG_DEBUG, "png: tag=%c%c%c%c length=%u\n",
(tag & 0xff),
((tag >> 8) & 0xff),
((tag >> 16) & 0xff),
case MKTAG('I', 'H', 'D', 'R'):
if (length != 13)
goto fail;
- s->width = bytestream_get_be32(&s->bytestream);
- s->height = bytestream_get_be32(&s->bytestream);
+ s->width = bytestream2_get_be32(&s->gb);
+ s->height = bytestream2_get_be32(&s->gb);
if(av_image_check_size(s->width, s->height, 0, avctx)){
s->width= s->height= 0;
goto fail;
}
- s->bit_depth = *s->bytestream++;
- s->color_type = *s->bytestream++;
- s->compression_type = *s->bytestream++;
- s->filter_type = *s->bytestream++;
- s->interlace_type = *s->bytestream++;
- s->bytestream += 4; /* crc */
+ s->bit_depth = bytestream2_get_byte(&s->gb);
+ s->color_type = bytestream2_get_byte(&s->gb);
+ s->compression_type = bytestream2_get_byte(&s->gb);
+ s->filter_type = bytestream2_get_byte(&s->gb);
+ s->interlace_type = bytestream2_get_byte(&s->gb);
+ bytestream2_skip(&s->gb, 4); /* crc */
s->state |= PNG_IHDR;
- av_dlog(avctx, "width=%d height=%d depth=%d color_type=%d compression_type=%d filter_type=%d interlace_type=%d\n",
+ if (avctx->debug & FF_DEBUG_PICT_INFO)
+ av_log(avctx, AV_LOG_DEBUG, "width=%d height=%d depth=%d color_type=%d compression_type=%d filter_type=%d interlace_type=%d\n",
s->width, s->height, s->bit_depth, s->color_type,
s->compression_type, s->filter_type, s->interlace_type);
break;
s->bpp = (s->bits_per_pixel + 7) >> 3;
s->row_size = (avctx->width * s->bits_per_pixel + 7) >> 3;
- if (s->bit_depth == 8 &&
+ if ((s->bit_depth == 2 || s->bit_depth == 4 || s->bit_depth == 8) &&
s->color_type == PNG_COLOR_TYPE_RGB) {
avctx->pix_fmt = PIX_FMT_RGB24;
- } else if (s->bit_depth == 8 &&
+ } else if ((s->bit_depth == 2 || s->bit_depth == 4 || s->bit_depth == 8) &&
s->color_type == PNG_COLOR_TYPE_RGB_ALPHA) {
- avctx->pix_fmt = PIX_FMT_RGB32;
- } else if (s->bit_depth == 8 &&
+ avctx->pix_fmt = PIX_FMT_RGBA;
+ } else if ((s->bit_depth == 2 || s->bit_depth == 4 || s->bit_depth == 8) &&
s->color_type == PNG_COLOR_TYPE_GRAY) {
avctx->pix_fmt = PIX_FMT_GRAY8;
} else if (s->bit_depth == 16 &&
} else if (s->bit_depth == 16 &&
s->color_type == PNG_COLOR_TYPE_RGB) {
avctx->pix_fmt = PIX_FMT_RGB48BE;
- } else if (s->bit_depth == 1 &&
- s->color_type == PNG_COLOR_TYPE_GRAY) {
- avctx->pix_fmt = PIX_FMT_MONOBLACK;
+ } else if (s->bit_depth == 16 &&
+ s->color_type == PNG_COLOR_TYPE_RGB_ALPHA) {
+ avctx->pix_fmt = PIX_FMT_RGBA64BE;
} else if (s->color_type == PNG_COLOR_TYPE_PALETTE) {
avctx->pix_fmt = PIX_FMT_PAL8;
- } else if (s->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
- avctx->pix_fmt = PIX_FMT_Y400A;
+ } else if (s->bit_depth == 1) {
+ avctx->pix_fmt = PIX_FMT_MONOBLACK;
+ } else if (s->bit_depth == 8 &&
+ s->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
+ avctx->pix_fmt = PIX_FMT_GRAY8A;
} else {
+ av_log(avctx, AV_LOG_ERROR, "unsupported bit depth %d "
+ "and color type %d\n",
+ s->bit_depth, s->color_type);
goto fail;
}
if(p->data[0])
avctx->release_buffer(avctx, p);
- p->reference= 0;
+ p->reference= 3;
if(avctx->get_buffer(avctx, p) < 0){
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
goto fail;
s->image_buf = p->data[0];
s->image_linesize = p->linesize[0];
/* copy the palette if needed */
- if (s->color_type == PNG_COLOR_TYPE_PALETTE)
+ if (avctx->pix_fmt == PIX_FMT_PAL8)
memcpy(p->data[1], s->palette, 256 * sizeof(uint32_t));
/* empty row is used if differencing to the first row */
s->last_row = av_mallocz(s->row_size);
s->state |= PNG_IDAT;
if (png_decode_idat(s, length) < 0)
goto fail;
- s->bytestream += 4; /* crc */
+ bytestream2_skip(&s->gb, 4); /* crc */
break;
case MKTAG('P', 'L', 'T', 'E'):
{
/* read the palette */
n = length / 3;
for(i=0;i<n;i++) {
- r = *s->bytestream++;
- g = *s->bytestream++;
- b = *s->bytestream++;
+ r = bytestream2_get_byte(&s->gb);
+ g = bytestream2_get_byte(&s->gb);
+ b = bytestream2_get_byte(&s->gb);
s->palette[i] = (0xff << 24) | (r << 16) | (g << 8) | b;
}
for(;i<256;i++) {
s->palette[i] = (0xff << 24);
}
s->state |= PNG_PLTE;
- s->bytestream += 4; /* crc */
+ bytestream2_skip(&s->gb, 4); /* crc */
}
break;
case MKTAG('t', 'R', 'N', 'S'):
!(s->state & PNG_PLTE))
goto skip_tag;
for(i=0;i<length;i++) {
- v = *s->bytestream++;
+ v = bytestream2_get_byte(&s->gb);
s->palette[i] = (s->palette[i] & 0x00ffffff) | (v << 24);
}
- s->bytestream += 4; /* crc */
+ bytestream2_skip(&s->gb, 4); /* crc */
}
break;
case MKTAG('I', 'E', 'N', 'D'):
if (!(s->state & PNG_ALLIMAGE))
goto fail;
- s->bytestream += 4; /* crc */
+ bytestream2_skip(&s->gb, 4); /* crc */
goto exit_loop;
default:
/* skip tag */
skip_tag:
- s->bytestream += length + 4;
+ bytestream2_skip(&s->gb, length + 4);
break;
}
}
exit_loop:
+
+ if(s->bits_per_pixel == 1 && s->color_type == PNG_COLOR_TYPE_PALETTE){
+ int i, j;
+ uint8_t *pd = s->current_picture->data[0];
+ for(j=0; j < s->height; j++) {
+ for(i=s->width/8-1; i>=0; i--) {
+ pd[8*i+7]= pd[i] &1;
+ pd[8*i+6]= (pd[i]>>1)&1;
+ pd[8*i+5]= (pd[i]>>2)&1;
+ pd[8*i+4]= (pd[i]>>3)&1;
+ pd[8*i+3]= (pd[i]>>4)&1;
+ pd[8*i+2]= (pd[i]>>5)&1;
+ pd[8*i+1]= (pd[i]>>6)&1;
+ pd[8*i+0]= pd[i]>>7;
+ }
+ pd += s->image_linesize;
+ }
+ }
+ if(s->bits_per_pixel == 2){
+ int i, j;
+ uint8_t *pd = s->current_picture->data[0];
+ for(j=0; j < s->height; j++) {
+ if (s->color_type == PNG_COLOR_TYPE_PALETTE){
+ for(i=s->width/4-1; i>=0; i--) {
+ pd[4*i+3]= pd[i] &3;
+ pd[4*i+2]= (pd[i]>>2)&3;
+ pd[4*i+1]= (pd[i]>>4)&3;
+ pd[4*i+0]= pd[i]>>6;
+ }
+ } else {
+ for(i=s->width/4-1; i>=0; i--) {
+ pd[4*i+3]= ( pd[i] &3)*0x55;
+ pd[4*i+2]= ((pd[i]>>2)&3)*0x55;
+ pd[4*i+1]= ((pd[i]>>4)&3)*0x55;
+ pd[4*i+0]= ( pd[i]>>6 )*0x55;
+ }
+ }
+ pd += s->image_linesize;
+ }
+ }
+ if(s->bits_per_pixel == 4){
+ int i, j;
+ uint8_t *pd = s->current_picture->data[0];
+ for(j=0; j < s->height; j++) {
+ if (s->color_type == PNG_COLOR_TYPE_PALETTE){
+ for(i=s->width/2-1; i>=0; i--) {
+ pd[2*i+1]= pd[i]&15;
+ pd[2*i+0]= pd[i]>>4;
+ }
+ } else {
+ for(i=s->width/2-1; i>=0; i--) {
+ pd[2*i+1]= (pd[i]&15)*0x11;
+ pd[2*i+0]= (pd[i]>>4)*0x11;
+ }
+ }
+ pd += s->image_linesize;
+ }
+ }
+
/* handle p-frames only if a predecessor frame is available */
if(s->last_picture->data[0] != NULL) {
if(!(avpkt->flags & AV_PKT_FLAG_KEY)) {
*picture= *s->current_picture;
*data_size = sizeof(AVFrame);
- ret = s->bytestream - s->bytestream_start;
+ ret = bytestream2_tell(&s->gb);
the_end:
inflateEnd(&s->zstream);
av_free(crow_buf_base);
goto the_end;
}
-static av_cold int png_dec_init(AVCodecContext *avctx){
+static av_cold int png_dec_init(AVCodecContext *avctx)
+{
PNGDecContext *s = avctx->priv_data;
s->current_picture = &s->picture1;
s->last_picture = &s->picture2;
avcodec_get_frame_defaults(&s->picture1);
avcodec_get_frame_defaults(&s->picture2);
+
ff_pngdsp_init(&s->dsp);
return 0;
/*
- * TIFF image decoder
* 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
*/
}
#endif
+static void av_always_inline horizontal_fill(unsigned int bpp, uint8_t* dst,
+ int usePtr, const uint8_t *src,
+ uint8_t c, int width, int offset)
+{
+ switch (bpp) {
+ case 1:
+ while (--width >= 0) {
+ dst[(width+offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
+ dst[(width+offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
+ dst[(width+offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
+ dst[(width+offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
+ dst[(width+offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
+ dst[(width+offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
+ dst[(width+offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
+ dst[(width+offset)*8+0] = (usePtr ? src[width] : c) >> 7;
+ }
+ break;
+ case 2:
+ while (--width >= 0) {
+ dst[(width+offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
+ dst[(width+offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
+ dst[(width+offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
+ dst[(width+offset)*4+0] = (usePtr ? src[width] : c) >> 6;
+ }
+ break;
+ case 4:
+ while (--width >= 0) {
+ dst[(width+offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
+ dst[(width+offset)*2+0] = (usePtr ? src[width] : c) >> 4;
+ }
+ break;
+ default:
+ if (usePtr) {
+ memcpy(dst + offset, src, width);
+ } else {
+ memset(dst + offset, c, width);
+ }
+ }
+}
+
static int tiff_unpack_strip(TiffContext *s, uint8_t* dst, int stride, const uint8_t *src, int size, int lines){
int c, line, pixels, code;
const uint8_t *ssrc = src;
}
src = zbuf;
for(line = 0; line < lines; line++){
- memcpy(dst, src, width);
+ if(s->bpp < 8 && s->avctx->pix_fmt == PIX_FMT_PAL8){
+ horizontal_fill(s->bpp, dst, 1, src, 0, width, 0);
+ }else{
+ memcpy(dst, src, width);
+ }
dst += stride;
src += width;
}
ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride, s->compr, s->fax_opts);
break;
}
+ if (s->bpp < 8 && s->avctx->pix_fmt == PIX_FMT_PAL8)
+ for (line = 0; line < lines; line++) {
+ horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
+ dst += stride;
+ }
av_free(src2);
return ret;
}
if (ssrc + size - src < width)
return AVERROR_INVALIDDATA;
if (!s->fill_order) {
- memcpy(dst, src, width);
+ horizontal_fill(s->bpp * (s->avctx->pix_fmt == PIX_FMT_PAL8),
+ dst, 1, src, 0, width, 0);
} else {
int i;
for (i = 0; i < width; i++)
av_log(s->avctx, AV_LOG_ERROR, "Copy went out of bounds\n");
return -1;
}
- memcpy(dst + pixels, src, code);
+ horizontal_fill(s->bpp * (s->avctx->pix_fmt == PIX_FMT_PAL8),
+ dst, 1, src, 0, code, pixels);
src += code;
pixels += code;
}else if(code != -128){ // -127..-1
return -1;
}
c = *src++;
- memset(dst + pixels, c, code);
+ horizontal_fill(s->bpp * (s->avctx->pix_fmt == PIX_FMT_PAL8),
+ dst, 0, NULL, c, code, pixels);
pixels += code;
}
}
av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n", pixels, width);
return -1;
}
+ if (s->bpp < 8 && s->avctx->pix_fmt == PIX_FMT_PAL8)
+ horizontal_fill(s->bpp, dst, 1, dst, 0, width, 0);
break;
}
dst += stride;
switch (s->bpp * 10 + s->bppcount) {
case 11:
- s->avctx->pix_fmt = PIX_FMT_MONOBLACK;
- break;
+ if (!s->palette_is_set) {
+ s->avctx->pix_fmt = PIX_FMT_MONOBLACK;
+ break;
+ }
+ case 21:
+ case 41:
case 81:
s->avctx->pix_fmt = PIX_FMT_PAL8;
break;
case 161:
s->avctx->pix_fmt = PIX_FMT_GRAY16BE;
break;
+ case 162:
+ s->avctx->pix_fmt = PIX_FMT_GRAY8A;
+ break;
case 324:
s->avctx->pix_fmt = PIX_FMT_RGBA;
break;
case 483:
s->avctx->pix_fmt = s->le ? PIX_FMT_RGB48LE : PIX_FMT_RGB48BE;
break;
+ case 644:
+ s->avctx->pix_fmt = s->le ? PIX_FMT_RGBA64LE : PIX_FMT_RGBA64BE;
+ break;
default:
av_log(s->avctx, AV_LOG_ERROR,
"This format is not supported (bpp=%d, bppcount=%d)\n",
} else {
/* make default grayscale pal */
pal = (uint32_t *) s->picture.data[1];
- for (i = 0; i < 256; i++)
- pal[i] = i * 0x010101;
+ for (i = 0; i < 1<<s->bpp; i++)
+ pal[i] = 0xFF << 24 | i * 255 / ((1<<s->bpp) - 1) * 0x010101;
}
}
return 0;
return -1;
}
break;
+ case TIFF_TILE_BYTE_COUNTS:
+ case TIFF_TILE_LENGTH:
+ case TIFF_TILE_OFFSETS:
+ case TIFF_TILE_WIDTH:
+ av_log(s->avctx, AV_LOG_ERROR, "Tiled images are not supported\n");
+ return AVERROR_PATCHWELCOME;
+ break;
case TIFF_PREDICTOR:
s->predictor = value;
break;
bp = buf + count / 3 * off * 2;
off = (type_sizes[type] - 1) << 3;
for(i = 0; i < count / 3; i++){
- j = (tget(&rp, type, s->le) >> off) << 16;
+ j = 0xff << 24;
+ j |= (tget(&rp, type, s->le) >> off) << 16;
j |= (tget(&gp, type, s->le) >> off) << 8;
j |= tget(&bp, type, s->le) >> off;
pal[i] = j;
av_log(avctx, AV_LOG_ERROR, "The answer to life, universe and everything is not correct!\n");
return -1;
}
+ // Reset these pointers so we can tell if they were set this frame
+ s->stripsizes = s->stripdata = NULL;
/* parse image file directory */
off = tget_long(&buf, le);
if (off >= UINT_MAX - 14 || end_buf - orig_buf < off + 14) {
dst = p->data[0];
soff = s->bpp >> 3;
ssize = s->width * soff;
- for(i = 0; i < s->height; i++) {
- for(j = soff; j < ssize; j++)
- dst[j] += dst[j - soff];
- dst += stride;
+ if (s->avctx->pix_fmt == PIX_FMT_RGB48LE ||
+ s->avctx->pix_fmt == PIX_FMT_RGBA64LE) {
+ for (i = 0; i < s->height; i++) {
+ for (j = soff; j < ssize; j += 2)
+ AV_WL16(dst + j, AV_RL16(dst + j) + AV_RL16(dst + j - soff));
+ dst += stride;
+ }
+ } else if (s->avctx->pix_fmt == PIX_FMT_RGB48BE ||
+ s->avctx->pix_fmt == PIX_FMT_RGBA64BE) {
+ for (i = 0; i < s->height; i++) {
+ for (j = soff; j < ssize; j += 2)
+ AV_WB16(dst + j, AV_RB16(dst + j) + AV_RB16(dst + j - soff));
+ dst += stride;
+ }
+ } else {
+ for(i = 0; i < s->height; i++) {
+ for(j = soff; j < ssize; j++)
+ dst[j] += dst[j - soff];
+ dst += stride;
+ }
}
}
if(s->invert){
- uint8_t *src;
- int j;
-
- src = s->picture.data[0];
- for(j = 0; j < s->height; j++){
- for(i = 0; i < s->picture.linesize[0]; i++)
- src[i] = 255 - src[i];
- src += s->picture.linesize[0];
+ dst = s->picture.data[0];
+ for(i = 0; i < s->height; i++){
+ for(j = 0; j < s->picture.linesize[0]; j++)
+ dst[j] = (s->avctx->pix_fmt == PIX_FMT_PAL8 ? (1<<s->bpp) - 1 : 255) - dst[j];
+ dst += s->picture.linesize[0];
}
}
*picture = s->picture;
* TTA (The Lossless True Audio) decoder
* Copyright (c) 2006 Alex Beregszaszi
*
- * 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
*/
return ret;
}
+static const int64_t tta_channel_layouts[7] = {
+ AV_CH_LAYOUT_STEREO,
+ AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY,
+ AV_CH_LAYOUT_QUAD,
+ 0,
+ AV_CH_LAYOUT_5POINT1_BACK,
+ AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER,
+ AV_CH_LAYOUT_7POINT1_WIDE
+};
+
static int tta_check_crc(TTAContext *s, const uint8_t *buf, int buf_size)
{
uint32_t crc, CRC;
{
if (avctx->err_recognition & AV_EF_CRCCHECK) {
s->crc_table = av_crc_get_table(AV_CRC_32_IEEE_LE);
- if (tta_check_crc(s, avctx->extradata, 18))
- return AVERROR_INVALIDDATA;
+ tta_check_crc(s, avctx->extradata, 18);
}
/* signature */
return AVERROR(EINVAL);
}
avctx->channels = s->channels = get_bits(&s->gb, 16);
+ if (s->channels > 1 && s->channels < 9)
+ avctx->channel_layout = tta_channel_layouts[s->channels-2];
avctx->bits_per_coded_sample = get_bits(&s->gb, 16);
s->bps = (avctx->bits_per_coded_sample + 7) / 8;
avctx->sample_rate = get_bits_long(&s->gb, 32);
}
switch(s->bps) {
+ case 1: avctx->sample_fmt = AV_SAMPLE_FMT_U8; break;
case 2:
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
avctx->bits_per_raw_sample = 16;
avctx->sample_fmt = AV_SAMPLE_FMT_S32;
avctx->bits_per_raw_sample = 24;
break;
+ //case 4: avctx->sample_fmt = AV_SAMPLE_FMT_S32; break;
default:
av_log(avctx, AV_LOG_ERROR, "Invalid/unsupported sample format.\n");
return AVERROR_INVALIDDATA;
return -1;
}
- if (s->bps == 2) {
+ if (s->bps < 3) {
s->decode_buffer = av_mallocz(sizeof(int32_t)*s->frame_length*s->channels);
if (!s->decode_buffer)
return AVERROR(ENOMEM);
- }
+ } else
+ s->decode_buffer = NULL;
s->ch_ctx = av_malloc(avctx->channels * sizeof(*s->ch_ctx));
if (!s->ch_ctx) {
av_freep(&s->decode_buffer);
skip_bits_long(&s->gb, 32); // frame crc
// convert to output buffer
- if (s->bps == 2) {
- int16_t *samples = (int16_t *)s->frame.data[0];
+ switch (s->bps) {
+ case 1: {
+ uint8_t *samples = (uint8_t *)s->frame.data[0];
+ for (p = s->decode_buffer; p < s->decode_buffer + (framelen * s->channels); p++)
+ *samples++ = *p + 0x80;
+ break;
+ }
+ case 2: {
+ uint16_t *samples = (int16_t *)s->frame.data[0];
for (p = s->decode_buffer; p < s->decode_buffer + (framelen * s->channels); p++)
*samples++ = *p;
- } else {
+ break;
+ }
+ case 3: {
// shift samples for 24-bit sample format
int32_t *samples = (int32_t *)s->frame.data[0];
- for (i = 0; i < framelen * s->channels; i++)
+ for (p = s->decode_buffer; p < s->decode_buffer + (framelen * s->channels); p++)
*samples++ <<= 8;
// reset decode buffer
s->decode_buffer = NULL;
+ break;
+ }
}
*got_frame_ptr = 1;
static av_cold int tta_decode_close(AVCodecContext *avctx) {
TTAContext *s = avctx->priv_data;
- av_free(s->decode_buffer);
+ if (s->bps < 3)
+ av_free(s->decode_buffer);
+ s->decode_buffer = NULL;
av_freep(&s->ch_ctx);
return 0;
-/*
- * This file is part of Libav.
+/**
+ * @file
+ * Vorbis I decoder
+ * @author Denes Balatoni ( dbalatoni programozo hu )
+ *
+ * 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
*/
// Precalculate order of x coordinates - needed for decode
ff_vorbis_ready_floor1_list(floor_setup->data.t1.list, floor_setup->data.t1.x_list_dim);
+
+ for (j=1; j<floor_setup->data.t1.x_list_dim; j++) {
+ if ( floor_setup->data.t1.list[ floor_setup->data.t1.list[j-1].sort ].x
+ == floor_setup->data.t1.list[ floor_setup->data.t1.list[j ].sort ].x) {
+ av_log(vc->avccontext, AV_LOG_ERROR, "Non unique x values in floor type 1\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
} else if (floor_setup->floor_type == 0) {
unsigned max_codebook_dim = 0;
vc->bitrate_minimum = get_bits_long(gb, 32);
bl0 = get_bits(gb, 4);
bl1 = get_bits(gb, 4);
- vc->blocksize[0] = (1 << bl0);
- vc->blocksize[1] = (1 << bl1);
if (bl0 > 13 || bl0 < 6 || bl1 > 13 || bl1 < 6 || bl1 < bl0) {
av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis id header packet corrupt (illegal blocksize). \n");
return AVERROR_INVALIDDATA;
}
+ vc->blocksize[0] = (1 << bl0);
+ vc->blocksize[1] = (1 << bl1);
vc->win[0] = ff_vorbis_vwin[bl0 - 6];
vc->win[1] = ff_vorbis_vwin[bl1 - 6];
uint16_t floor1_Y[258];
uint16_t floor1_Y_final[258];
int floor1_flag[258];
- unsigned class, cdim, cbits, csub, cval, offset, i, j;
+ unsigned partition_class, cdim, cbits, csub, cval, offset, i, j;
int book, adx, ady, dy, off, predicted, err;
offset = 2;
for (i = 0; i < vf->partitions; ++i) {
- class = vf->partition_class[i];
- cdim = vf->class_dimensions[class];
- cbits = vf->class_subclasses[class];
+ partition_class = vf->partition_class[i];
+ cdim = vf->class_dimensions[partition_class];
+ cbits = vf->class_subclasses[partition_class];
csub = (1 << cbits) - 1;
cval = 0;
av_dlog(NULL, "Cbits %u\n", cbits);
if (cbits) // this reads all subclasses for this partition's class
- cval = get_vlc2(gb, vc->codebooks[vf->class_masterbook[class]].vlc.table,
- vc->codebooks[vf->class_masterbook[class]].nb_bits, 3);
+ cval = get_vlc2(gb, vc->codebooks[vf->class_masterbook[partition_class]].vlc.table,
+ vc->codebooks[vf->class_masterbook[partition_class]].nb_bits, 3);
for (j = 0; j < cdim; ++j) {
- book = vf->subclass_books[class][cval & csub];
+ book = vf->subclass_books[partition_class][cval & csub];
av_dlog(NULL, "book %d Cbits %u cval %u bits:%d\n",
book, cbits, cval, get_bits_count(gb));
ch_left -= ch;
}
+ if (ch_left > 0)
+ return AVERROR_INVALIDDATA;
+
// Inverse coupling
for (i = mapping->coupling_steps - 1; i >= 0; --i) { //warning: i has to be signed
DEALINGS IN THE SOFTWARE.
*/
-
#include <stdio.h>
#include "oggdec.h"
#include "avformat.h"
for (i = 0; i < ogg->nstreams; i++){
struct ogg_stream *os = ogg->streams + i;
- os->buf = av_malloc (os->bufsize);
- memset (os->buf, 0, os->bufsize);
+ os->buf = av_mallocz (os->bufsize + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy (os->buf, ost->streams[i].buf, os->bufpos);
}
os = ogg->streams + idx;
os->serial = serial;
os->bufsize = DECODER_BUFFER_SIZE;
- os->buf = av_malloc(os->bufsize);
+ os->buf = av_malloc(os->bufsize + FF_INPUT_BUFFER_PADDING_SIZE);
os->header = -1;
if (new_avstream) {
static int ogg_new_buf(struct ogg *ogg, int idx)
{
struct ogg_stream *os = ogg->streams + idx;
- uint8_t *nb = av_malloc(os->bufsize);
+ uint8_t *nb = av_malloc(os->bufsize + FF_INPUT_BUFFER_PADDING_SIZE);
int size = os->bufpos - os->pstart;
if(os->buf){
memcpy(nb, os->buf + os->pstart, size);
break;
c = avio_r8(bc);
- if (bc->eof_reached)
+ if (url_feof(bc))
return AVERROR_EOF;
sync[sp++ & 3] = c;
}while (i++ < MAX_PAGE_SIZE);
if (flags & OGG_FLAG_CONT || os->incomplete){
if (!os->psize){
+ // If this is the very first segment we started
+ // playback in the middle of a continuation packet.
+ // Discard it since we missed the start of it.
while (os->segp < os->nsegs){
int seg = os->segments[os->segp++];
os->pstart += seg;
}
if (os->bufsize - os->bufpos < size){
- uint8_t *nb = av_malloc (os->bufsize *= 2);
+ uint8_t *nb = av_malloc ((os->bufsize *= 2) + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy (nb, os->buf, os->bufpos);
av_free (os->buf);
os->buf = nb;
os->granule = gp;
os->flags = flags;
+ memset(os->buf + os->bufpos, 0, FF_INPUT_BUFFER_PADDING_SIZE);
if (str)
*str = idx;
if (!complete && os->segp == os->nsegs){
ogg->curidx = -1;
- os->incomplete = 1;
+ // Do not set incomplete for empty packets.
+ // Together with the code in ogg_read_page
+ // that discards all continuation of empty packets
+ // we would get an infinite loop.
+ os->incomplete = !!os->psize;
}
}while (!complete);
- av_dlog(s, "ogg_packet: idx %i, frame size %i, start %i\n",
- idx, os->psize, os->pstart);
if (os->granule == -1)
av_log(s, AV_LOG_WARNING, "Page at %"PRId64" is missing granule\n", os->page_pos);
*fpos = os->sync_pos;
os->pstart += os->psize;
os->psize = 0;
+ if(os->pstart == os->bufpos)
+ os->bufpos = os->pstart = 0;
os->sync_pos = os->page_pos;
}
struct ogg *ogg = s->priv_data;
int i;
int64_t size, end;
+ int streams_left=0;
if(!s->pb->seekable)
return 0;
ogg->streams[i].codec) {
s->streams[i]->duration =
ogg_gptopts (s, i, ogg->streams[i].granule, NULL);
- if (s->streams[i]->start_time != AV_NOPTS_VALUE)
+ if (s->streams[i]->start_time != AV_NOPTS_VALUE){
s->streams[i]->duration -= s->streams[i]->start_time;
+ streams_left-= (ogg->streams[i].got_start==-1);
+ ogg->streams[i].got_start= 1;
+ }else if(!ogg->streams[i].got_start){
+ ogg->streams[i].got_start= -1;
+ streams_left++;
+ }
}
}
ogg_restore (s, 0);
+ ogg_save (s);
+ avio_seek (s->pb, 0, SEEK_SET);
+ while (!ogg_read_page (s, &i)){
+ if (ogg->streams[i].granule != -1 && ogg->streams[i].granule != 0 &&
+ ogg->streams[i].codec) {
+ if(s->streams[i]->duration && s->streams[i]->start_time == AV_NOPTS_VALUE && !ogg->streams[i].got_start){
+ int64_t start= ogg_gptopts (s, i, ogg->streams[i].granule, NULL);
+ if(av_rescale_q(start, s->streams[i]->time_base, AV_TIME_BASE_Q) > AV_TIME_BASE)
+ s->streams[i]->duration -= start;
+ ogg->streams[i].got_start= 1;
+ streams_left--;
+ }
+ if(streams_left<=0)
+ break;
+ }
+ }
+ ogg_restore (s, 0);
+
return 0;
}
return pts;
}
+static void ogg_validate_keyframe(AVFormatContext *s, int idx, int pstart, int psize)
+{
+ struct ogg *ogg = s->priv_data;
+ struct ogg_stream *os = ogg->streams + idx;
+ if (psize && s->streams[idx]->codec->codec_id == CODEC_ID_THEORA) {
+ if (!!(os->pflags & AV_PKT_FLAG_KEY) != !(os->buf[pstart] & 0x40)) {
+ os->pflags ^= AV_PKT_FLAG_KEY;
+ av_log(s, AV_LOG_WARNING, "Broken file, %skeyframe not correctly marked.\n",
+ (os->pflags & AV_PKT_FLAG_KEY) ? "" : "non-");
+ }
+ }
+}
+
static int ogg_read_packet(AVFormatContext *s, AVPacket *pkt)
{
struct ogg *ogg;
// pflags might not be set until after this
pts = ogg_calc_pts(s, idx, &dts);
+ ogg_validate_keyframe(s, idx, pstart, psize);
if (os->keyframe_seek && !(os->pflags & AV_PKT_FLAG_KEY))
goto retry;
struct ogg *ogg = s->priv_data;
AVIOContext *bc = s->pb;
int64_t pts = AV_NOPTS_VALUE;
+ int64_t keypos = -1;
int i = -1;
+ int pstart, psize;
avio_seek(bc, *pos_arg, SEEK_SET);
ogg_reset(ogg);
- while (avio_tell(bc) < pos_limit && !ogg_packet(s, &i, NULL, NULL, pos_arg)) {
+ while (avio_tell(bc) < pos_limit && !ogg_packet(s, &i, &pstart, &psize, pos_arg)) {
if (i == stream_index) {
struct ogg_stream *os = ogg->streams + stream_index;
pts = ogg_calc_pts(s, i, NULL);
- if (os->keyframe_seek && !(os->pflags & AV_PKT_FLAG_KEY))
- pts = AV_NOPTS_VALUE;
+ ogg_validate_keyframe(s, i, pstart, psize);
+ if (os->pflags & AV_PKT_FLAG_KEY) {
+ keypos = *pos_arg;
+ } else if (os->keyframe_seek) {
+ // if we had a previous keyframe but no pts for it,
+ // return that keyframe with this pts value.
+ if (keypos >= 0)
+ *pos_arg = keypos;
+ else
+ pts = AV_NOPTS_VALUE;
+ }
}
if (pts != AV_NOPTS_VALUE)
break;
struct ogg_stream *os = ogg->streams + stream_index;
int ret;
+ // Ensure everything is reset even when seeking via
+ // the generated index.
+ ogg_reset(ogg);
+
// Try seeking to a keyframe first. If this fails (very possible),
// av_seek_frame will fall back to ignoring keyframes
if (s->streams[stream_index]->codec->codec_type == AVMEDIA_TYPE_VIDEO
* RTP output format
* Copyright (c) 2002 Fabrice Bellard
*
- * 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
*/
}
st = s1->streams[0];
if (!is_supported(st->codec->codec_id)) {
- av_log(s1, AV_LOG_ERROR, "Unsupported codec %x\n", st->codec->codec_id);
+ av_log(s1, AV_LOG_ERROR, "Unsupported codec %s\n", avcodec_get_name(st->codec->codec_id));
return -1;
}
s->max_frames_per_packet =
av_rescale_q_rnd(s1->max_delay,
AV_TIME_BASE_Q,
- (AVRational){ frame_size / st->codec->sample_rate },
+ (AVRational){ frame_size, st->codec->sample_rate },
AV_ROUND_DOWN);
}
}
projects / ffmpeg / commitdiff