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- /*
- * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- /**
- * @file
- * Cook audio parser
- *
- * Determines subpacket duration from extradata.
- */
- #include <stdint.h>
- #include "libavutil/intreadwrite.h"
- #include "parser.h"
- typedef struct CookParseContext {
- int duration;
- } CookParseContext;
- static int cook_parse(AVCodecParserContext *s1, AVCodecContext *avctx,
- const uint8_t **poutbuf, int *poutbuf_size,
- const uint8_t *buf, int buf_size)
- {
- CookParseContext *s = s1->priv_data;
- if (s->duration)
- s1->duration = s->duration;
- else if (avctx->extradata && avctx->extradata_size >= 8 && avctx->channels)
- s->duration = AV_RB16(avctx->extradata + 4) / avctx->channels;
- /* always return the full packet. this parser isn't doing any splitting or
- combining, only setting packet duration */
- *poutbuf = buf;
- *poutbuf_size = buf_size;
- return buf_size;
- }
- AVCodecParser ff_cook_parser = {
- .codec_ids = { CODEC_ID_COOK },
- .priv_data_size = sizeof(CookParseContext),
- .parser_parse = cook_parse,
- };
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