2 * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
4 * This file is part of FFmpeg.
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.
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.
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
25 * Determines subpacket duration from extradata.
30 #include "libavutil/intreadwrite.h"
33 typedef struct CookParseContext
{
37 static int cook_parse(AVCodecParserContext
*s1
, AVCodecContext
*avctx
,
38 const uint8_t **poutbuf
, int *poutbuf_size
,
39 const uint8_t *buf
, int buf_size
)
41 CookParseContext
*s
= s1
->priv_data
;
44 avctx
->extradata
&& avctx
->extradata_size
>= 8 && avctx
->channels
)
45 s
->duration
= AV_RB16(avctx
->extradata
+ 4) / avctx
->channels
;
47 s1
->duration
= s
->duration
;
49 /* always return the full packet. this parser isn't doing any splitting or
50 combining, only setting packet duration */
52 *poutbuf_size
= buf_size
;
56 AVCodecParser ff_cook_parser
= {
57 .codec_ids
= { AV_CODEC_ID_COOK
},
58 .priv_data_size
= sizeof(CookParseContext
),
59 .parser_parse
= cook_parse
,