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