56 lines
2.0 KiB
C
56 lines
2.0 KiB
C
/*
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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 <string.h>
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#include "avcodec.h"
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#include "libavutil/mem.h"
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static int dump_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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/* cast to avoid warning about discarding qualifiers */
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if(avctx->extradata){
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if( (keyframe && (avctx->flags2 & AV_CODEC_FLAG2_LOCAL_HEADER) && cmd == 'a')
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||(keyframe && (cmd=='k' || !cmd))
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||(cmd=='e')
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/*||(? && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_BEGIN)*/){
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int size= buf_size + avctx->extradata_size;
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*poutbuf_size= size;
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*poutbuf= av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
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if (!*poutbuf)
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return AVERROR(ENOMEM);
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memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);
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memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
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return 1;
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}
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}
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return 0;
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}
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AVBitStreamFilter ff_dump_extradata_bsf={
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"dump_extra",
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0,
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dump_extradata,
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};
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