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/*
* AVCodecParser prototypes and definitions
* Copyright (c) 2003 Fabrice Bellard
* Copyright (c) 2003 Michael Niedermayer
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/

#ifndef AVCODEC_PARSER_H
#define AVCODEC_PARSER_H

#include "avcodec.h"

typedef struct ParseContext{
    uint8_t *buffer;
    int index;
    int last_index;
    unsigned int buffer_size;
    uint32_t state; ///< contains the last few bytes in MSB order
    int frame_start_found;
    int overread; ///< the number of bytes which where irreversibly read from the next frame
    int overread_index; ///< the index into ParseContext.buffer of the overread bytes
    uint64_t state64; ///< contains the last 8 bytes in MSB order
} ParseContext;

#define END_NOT_FOUND (-100)

int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_size);
int ff_mpeg4video_split(AVCodecContext *avctx, const uint8_t *buf,
                        int buf_size);
void ff_parse_close(AVCodecParserContext *s);

/**
* Fetch timestamps for a specific byte within the current access unit.
* @param off byte position within the access unit
* @param remove Found timestamps will be removed if set to 1, kept if set to 0.
*/
void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove);

#endif /* AVCODEC_PARSER_H */
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