Imported Debian version 2.5.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / remove_extradata_bsf.c
CommitLineData
2ba45a60
DM
1/*
2 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "avcodec.h"
22
23
24static int remove_extradata(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,
25 uint8_t **poutbuf, int *poutbuf_size,
26 const uint8_t *buf, int buf_size, int keyframe){
27 int cmd= args ? *args : 0;
28 AVCodecParserContext *s;
29
30 if(!bsfc->parser){
31 bsfc->parser= av_parser_init(avctx->codec_id);
32 }
33 s= bsfc->parser;
34
35 if(s && s->parser->split){
36 if( (((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)) && cmd=='a')
37 ||(!keyframe && cmd=='k')
38 ||(cmd=='e' || !cmd)
39 ){
40 int i= s->parser->split(avctx, buf, buf_size);
41 buf += i;
42 buf_size -= i;
43 }
44 }
45 *poutbuf= (uint8_t *) buf;
46 *poutbuf_size= buf_size;
47
48 return 0;
49}
50
51AVBitStreamFilter ff_remove_extradata_bsf={
52 .name = "remove_extra",
53 .filter = remove_extradata,
54};