Libav 0.7.1
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00001 /* 00002 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> 00003 * 00004 * This file is part of Libav. 00005 * 00006 * Libav 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 * Libav 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 Libav; 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 dump_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 /* cast to avoid warning about discarding qualifiers */ 00029 if(avctx->extradata){ 00030 if( (keyframe && (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER) && cmd=='a') 00031 ||(keyframe && (cmd=='k' || !cmd)) 00032 ||(cmd=='e') 00033 /*||(? && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_BEGIN)*/){ 00034 int size= buf_size + avctx->extradata_size; 00035 *poutbuf_size= size; 00036 *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE); 00037 00038 memcpy(*poutbuf, avctx->extradata, avctx->extradata_size); 00039 memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE); 00040 return 1; 00041 } 00042 } 00043 return 0; 00044 } 00045 00046 AVBitStreamFilter ff_dump_extradata_bsf={ 00047 "dump_extra", 00048 0, 00049 dump_extradata, 00050 };