/*
  *

  * 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
  */
 
 /**
  * @file

  * A public API for Vorbis parsing

  *
  * Determines the duration for each packet.
  */
 

 #ifndef AVCODEC_VORBIS_PARSE_H
 #define AVCODEC_VORBIS_PARSE_H

 #include <stdint.h>
 

 typedef struct AVVorbisParseContext AVVorbisParseContext;

 
 /**

  * Allocate and initialize the Vorbis parser using headers in the extradata.

  *
  * @param avctx codec context
  * @param s     Vorbis parser context
  */

 AVVorbisParseContext *av_vorbis_parse_init(const uint8_t *extradata,
                                            int extradata_size);
 
 /**
  * Free the parser and everything associated with it.
  */
 void av_vorbis_parse_free(AVVorbisParseContext **s);

 #define VORBIS_FLAG_HEADER  0x00000001
 #define VORBIS_FLAG_COMMENT 0x00000002

 #define VORBIS_FLAG_SETUP   0x00000004

 
 /**
  * Get the duration for a Vorbis packet.
  *

  * If @p flags is @c NULL,

  * special frames are considered invalid.
  *
  * @param s        Vorbis parser context
  * @param buf      buffer containing a Vorbis frame
  * @param buf_size size of the buffer
  * @param flags    flags for special frames
  */

 int av_vorbis_parse_frame_flags(AVVorbisParseContext *s, const uint8_t *buf,
                                 int buf_size, int *flags);

 /**
  * Get the duration for a Vorbis packet.
  *
  * @param s        Vorbis parser context
  * @param buf      buffer containing a Vorbis frame
  * @param buf_size size of the buffer
  */

 int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf,
                           int buf_size);

 void av_vorbis_parse_reset(AVVorbisParseContext *s);

 #endif /* AVCODEC_VORBIS_PARSE_H */