00001 /* 00002 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> 00003 * 00004 * This file is part of FFmpeg. 00005 * 00006 * FFmpeg is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2.1 of the License, or (at your option) any later version. 00010 * 00011 * FFmpeg is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with FFmpeg; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00021 #include "avcodec.h" 00022 00023 00024 static int remove_extradata(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args, 00025 uint8_t **poutbuf, int *poutbuf_size, 00026 const uint8_t *buf, int buf_size, int keyframe){ 00027 int cmd= args ? *args : 0; 00028 AVCodecParserContext *s; 00029 00030 if(!bsfc->parser){ 00031 bsfc->parser= av_parser_init(avctx->codec_id); 00032 } 00033 s= bsfc->parser; 00034 00035 if(s && s->parser->split){ 00036 if( (((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)) && cmd=='a') 00037 ||(!keyframe && cmd=='k') 00038 ||(cmd=='e' || !cmd) 00039 ){ 00040 int i= s->parser->split(avctx, buf, buf_size); 00041 buf += i; 00042 buf_size -= i; 00043 } 00044 } 00045 *poutbuf= (uint8_t *) buf; 00046 *poutbuf_size= buf_size; 00047 00048 return 0; 00049 } 00050 00051 AVBitStreamFilter remove_extradata_bsf={ 00052 "remove_extra", 00053 0, 00054 remove_extradata, 00055 };