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/*
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* 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.
*
* 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
#include "avcodec.h"
#include "libavutil/mem.h"
static int dump_extradata(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,
uint8_t **poutbuf, int *poutbuf_size,
const uint8_t *buf, int buf_size, int keyframe){
int cmd= args ? *args : 0;
/* cast to avoid warning about discarding qualifiers */
if(avctx->extradata){
if( (keyframe && (avctx->flags2 & AV_CODEC_FLAG2_LOCAL_HEADER) && cmd == 'a')
||(keyframe && (cmd=='k' || !cmd))
||(cmd=='e')
/*||(? && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_BEGIN)*/){
int size= buf_size + avctx->extradata_size;
*poutbuf_size= size;
*poutbuf= av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!*poutbuf)
return AVERROR(ENOMEM);
memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);
memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
return 1;
}
}
return 0;
}
AVBitStreamFilter ff_dump_extradata_bsf={
.name = "dump_extra",
.filter = dump_extradata,
};
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