2 * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
4 * This file is part of Libav.
6 * Libav 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 * Libav 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 Libav; 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 s1->duration = s->duration;
45 else if (avctx->extradata && avctx->extradata_size >= 8 && avctx->channels)
46 s->duration = AV_RB16(avctx->extradata + 4) / avctx->channels;
48 /* always return the full packet. this parser isn't doing any splitting or
49 combining, only setting packet duration */
51 *poutbuf_size = buf_size;
55 AVCodecParser ff_cook_parser = {
56 .codec_ids = { CODEC_ID_COOK },
57 .priv_data_size = sizeof(CookParseContext),
58 .parser_parse = cook_parse,