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libavcodec
remove_extradata_bsf.c
Go to the documentation of this file.
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/*
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* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "
avcodec.h
"
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static
int
remove_extradata
(
AVBitStreamFilterContext
*bsfc,
AVCodecContext
*avctx,
const
char
*args,
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uint8_t
**poutbuf,
int
*poutbuf_size,
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const
uint8_t
*buf,
int
buf_size,
int
keyframe){
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int
cmd= args ? *args : 0;
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AVCodecParserContext
*s;
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if
(!bsfc->
parser
){
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bsfc->
parser
=
av_parser_init
(avctx->
codec_id
);
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}
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s= bsfc->
parser
;
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if
(s && s->
parser
->
split
){
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if
( (((avctx->
flags
&
CODEC_FLAG_GLOBAL_HEADER
) || (avctx->
flags2
&
CODEC_FLAG2_LOCAL_HEADER
)) && cmd==
'a'
)
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||(!keyframe && cmd==
'k'
)
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||(cmd==
'e'
|| !cmd)
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){
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int
i= s->
parser
->
split
(avctx, buf, buf_size);
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buf += i;
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buf_size -= i;
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}
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}
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*poutbuf= (
uint8_t
*) buf;
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*poutbuf_size= buf_size;
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return
0;
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}
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AVBitStreamFilter
ff_remove_extradata_bsf
={
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"remove_extra"
,
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0,
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remove_extradata
,
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};
AVBitStreamFilterContext::parser
AVCodecParserContext * parser
Definition:
avcodec.h:4291
uint8_t
uint8_t
Definition:
audio_convert.c:194
CODEC_FLAG_GLOBAL_HEADER
#define CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition:
avcodec.h:657
AVBitStreamFilter
Definition:
avcodec.h:4296
AVCodecParserContext::parser
struct AVCodecParser * parser
Definition:
avcodec.h:3668
AVCodecContext::flags
int flags
CODEC_FLAG_*.
Definition:
avcodec.h:1144
AVCodecParserContext
Definition:
avcodec.h:3666
AVBitStreamFilterContext
Definition:
avcodec.h:4288
av_parser_init
AVCodecParserContext * av_parser_init(int codec_id)
Definition:
parser.c:46
avcodec.h
Libavcodec external API header.
AVCodecContext::codec_id
enum AVCodecID codec_id
Definition:
avcodec.h:1067
AVCodecContext
main external API structure.
Definition:
avcodec.h:1050
CODEC_FLAG2_LOCAL_HEADER
#define CODEC_FLAG2_LOCAL_HEADER
Place global headers at every keyframe instead of in extradata.
Definition:
avcodec.h:666
remove_extradata
static int remove_extradata(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int keyframe)
Definition:
remove_extradata_bsf.c:24
AVCodecParser::split
int(* split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
Definition:
avcodec.h:3830
ff_remove_extradata_bsf
AVBitStreamFilter ff_remove_extradata_bsf
Definition:
remove_extradata_bsf.c:51
AVCodecContext::flags2
int flags2
CODEC_FLAG2_*.
Definition:
avcodec.h:1151
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