* Copyright (c) 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
- * 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
*/
break;
case CODEC_ID_VC1:
case CODEC_ID_WMV3:
+ case CODEC_ID_VC1IMAGE:
+ case CODEC_ID_WMV3IMAGE:
s->h263_pred = 1;
s->msmpeg4_version=6;
avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
if( s->codec_id==CODEC_ID_MPEG4
&& (s->workaround_bugs&FF_BUG_AUTODETECT)
&& get_bits_left(&s->gb) >=0
- && get_bits_left(&s->gb) < 48
+ && get_bits_left(&s->gb) < 137
// && !s->resync_marker
&& !s->data_partitioning){
retry:
+ if(s->divx_packed && s->bitstream_buffer_size){
+ int i;
+ for(i=0; i<buf_size-3; i++){
+ if(buf[i]==0 && buf[i+1]==0 && buf[i+2]==1){
+ if(buf[i+3]==0xB0){
+ av_log(s->avctx, AV_LOG_WARNING, "Discarding excessive bitstream in packed xvid\n");
+ s->bitstream_buffer_size=0;
+ }
+ break;
+ }
+ }
+ }
if(s->bitstream_buffer_size && (s->divx_packed || buf_size<20)){ //divx 5.01+/xvid frame reorder
init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size*8);
frame_end:
/* divx 5.01+ bistream reorder stuff */
if(s->codec_id==CODEC_ID_MPEG4 && s->divx_packed){
- int current_pos= get_bits_count(&s->gb)>>3;
+ int current_pos= s->gb.buffer == s->bitstream_buffer ? 0 : (get_bits_count(&s->gb)>>3);
int startcode_found=0;
- if(buf_size - current_pos > 5){
+ if(buf_size - current_pos > 7){
int i;
- for(i=current_pos; i<buf_size-3; i++){
+ for(i=current_pos; i<buf_size-4; i++){
if(buf[i]==0 && buf[i+1]==0 && buf[i+2]==1 && buf[i+3]==0xB6){
- startcode_found=1;
+ startcode_found=!(buf[i+4]&0x40);
break;
}
}
}
- if(s->gb.buffer == s->bitstream_buffer && buf_size>7 && s->xvid_build>=0){ //xvid style
- startcode_found=1;
- current_pos=0;
- }
if(startcode_found){
av_fast_malloc(
MPV_frame_end(s);
-assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);
-assert(s->current_picture.pict_type == s->pict_type);
+ assert(s->current_picture.f.pict_type == s->current_picture_ptr->f.pict_type);
+ assert(s->current_picture.f.pict_type == s->pict_type);
if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
*pict= *(AVFrame*)s->current_picture_ptr;
} else if (s->last_picture_ptr != NULL) {
}
AVCodec ff_h263_decoder = {
- "h263",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_H263,
- sizeof(MpegEncContext),
- ff_h263_decode_init,
- NULL,
- ff_h263_decode_end,
- ff_h263_decode_frame,
- CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
+ .name = "h263",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_H263,
+ .priv_data_size = sizeof(MpegEncContext),
+ .init = ff_h263_decode_init,
+ .close = ff_h263_decode_end,
+ .decode = ff_h263_decode_frame,
+ .capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
.flush= ff_mpeg_flush,
.max_lowres= 3,
.long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),