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ffmpeg / libavcodec / bitstream_filter.c @ 8bf63e1c

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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 FFmpeg.
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 *
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 * FFmpeg 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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 * FFmpeg 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 FFmpeg; 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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AVBitStreamFilter *first_bitstream_filter= NULL;
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void av_register_bitstream_filter(AVBitStreamFilter *bsf){
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    bsf->next = first_bitstream_filter;
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    first_bitstream_filter= bsf;
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}
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AVBitStreamFilterContext *av_bitstream_filter_init(const char *name){
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    AVBitStreamFilter *bsf= first_bitstream_filter;
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    while(bsf){
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        if(!strcmp(name, bsf->name)){
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            AVBitStreamFilterContext *bsfc= av_mallocz(sizeof(AVBitStreamFilterContext));
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            bsfc->filter= bsf;
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            bsfc->priv_data= av_mallocz(bsf->priv_data_size);
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            return bsfc;
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        }
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        bsf= bsf->next;
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    }
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    return NULL;
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}
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void av_bitstream_filter_close(AVBitStreamFilterContext *bsfc){
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    av_freep(&bsfc->priv_data);
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    av_parser_close(bsfc->parser);
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    av_free(bsfc);
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}
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int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
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                               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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    *poutbuf= (uint8_t *) buf;
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    *poutbuf_size= buf_size;
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    return bsfc->filter->filter(bsfc, avctx, args, poutbuf, poutbuf_size, buf, buf_size, keyframe);
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}