#ifndef WH_AAC_AC3_PARSER_H_d41c8c70_
#define WH_AAC_AC3_PARSER_H_d41c8c70_

/*
 * This file was stolen from ffmpeg and modified for usability here.
 *  The original is
 * 
 * Copyright (c) 2003 Fabrice Bellard
 * Copyright (c) 2003 Michael Niedermayer
 *
 * This version is a derivative work of that version.  It is not free
 *  software; it is licensed under the GNU Lesser General Public
 *  License version 2.1, which places nontrivial restrictions on what
 *  may be done with it.  (I'm not terribly happy about that, but for
 *  my purposes accepting LGPL-infected code is a lower price than
 *  reimplementing it all myself.)
 *
 * The LGPL v2.1 as distributed with ffmpeg is in the accompanying file
 *  `LGPL-v2.1'.
 */

#include <stdint.h>

#include "parser.h"

typedef enum {
    AAC_AC3_PARSE_ERROR_SYNC        = -1,
    AAC_AC3_PARSE_ERROR_BSID        = -2,
    AAC_AC3_PARSE_ERROR_SAMPLE_RATE = -3,
    AAC_AC3_PARSE_ERROR_FRAME_SIZE  = -4,
    AAC_AC3_PARSE_ERROR_FRAME_TYPE  = -5,
    AAC_AC3_PARSE_ERROR_CRC         = -6,
    AAC_AC3_PARSE_ERROR_CHANNEL_CFG = -7,
} AACAC3ParseError;

typedef struct AACAC3ParseContext {
    ParseContext pc;
    int frame_size;
    int header_size;
    int (*sync)(uint64_t state, struct AACAC3ParseContext *hdr_info,
            int *need_next_header, int *new_frame_start);

    int channels;
    int sample_rate;
    int bit_rate;
    int samples;
    uint64_t channel_layout;
    int service_type;

    int remaining_size;
    uint64_t state;

    int need_next_header;
    enum CodecID codec_id;
} AACAC3ParseContext;

int ff_aac_ac3_parse(AVCodecParserContext *s1,
                     AVCodecContext *avctx,
                     const uint8_t **poutbuf, int *poutbuf_size,
                     const uint8_t *buf, int buf_size);

#endif