yading@10: /*
yading@10:  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #include "avcodec.h"
yading@10: 
yading@10: 
yading@10: static int remove_extradata(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,
yading@10:                      uint8_t **poutbuf, int *poutbuf_size,
yading@10:                      const uint8_t *buf, int buf_size, int keyframe){
yading@10:     int cmd= args ? *args : 0;
yading@10:     AVCodecParserContext *s;
yading@10: 
yading@10:     if(!bsfc->parser){
yading@10:         bsfc->parser= av_parser_init(avctx->codec_id);
yading@10:     }
yading@10:     s= bsfc->parser;
yading@10: 
yading@10:     if(s && s->parser->split){
yading@10:         if(  (((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)) && cmd=='a')
yading@10:            ||(!keyframe && cmd=='k')
yading@10:            ||(cmd=='e' || !cmd)
yading@10:           ){
yading@10:             int i= s->parser->split(avctx, buf, buf_size);
yading@10:             buf += i;
yading@10:             buf_size -= i;
yading@10:         }
yading@10:     }
yading@10:     *poutbuf= (uint8_t *) buf;
yading@10:     *poutbuf_size= buf_size;
yading@10: 
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: AVBitStreamFilter ff_remove_extradata_bsf={
yading@10:     "remove_extra",
yading@10:     0,
yading@10:     remove_extradata,
yading@10: };