PeerStreamer

/*

 * Common AAC and AC-3 parser prototypes

 * Copyright (c) 2003 Fabrice Bellard

 * Copyright (c) 2003 Michael Niedermayer

 *

 * 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

 */

#ifndef AVCODEC_AAC_AC3_PARSER_H

#define AVCODEC_AAC_AC3_PARSER_H

#include <stdint.h>

#include "avcodec.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;

    int64_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 /* AVCODEC_AAC_AC3_PARSER_H */