/*
  * 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)
 

 /**
  * Combine the (truncated) bitstream to a complete frame.
  * @return -1 if no complete frame could be created,
  *         AVERROR(ENOMEM) if there was a memory allocation error
  */

 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.

  * @param fuzzy Only use found value if it is more informative than what we already have

  */

 void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove, int fuzzy);

 #endif /* AVCODEC_PARSER_H */