1/*
2 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "avcodec.h"
22
23
24static int dump_extradata(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,
25                     uint8_t **poutbuf, int *poutbuf_size,
26                     const uint8_t *buf, int buf_size, int keyframe){
27    int cmd= args ? *args : 0;
28    /* cast to avoid warning about discarding qualifiers */
29    if(avctx->extradata){
30        if(  (keyframe && (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER) && cmd=='a')
31           ||(keyframe && (cmd=='k' || !cmd))
32           ||(cmd=='e')
33            /*||(? && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_BEGIN)*/){
34            int size= buf_size + avctx->extradata_size;
35            *poutbuf_size= size;
36            *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
37
38            memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);
39            memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
40            return 1;
41        }
42    }
43    return 0;
44}
45
46AVBitStreamFilter dump_extradata_bsf={
47    "dump_extra",
48    0,
49    dump_extradata,
50};
51