/*
  * Copyright (C) 2007  FFmpeg Project
  *
  * 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_XIPH_H
 #define AVCODEC_XIPH_H

 #include "libavutil/common.h"

 
 /**

  * Split a single extradata buffer into the three headers that most

  * Xiph codecs use. (e.g. Theora and Vorbis)
  * Works both with Matroska's packing and lavc's packing.
  *
  * @param[in] extradata The single chunk that combines all three headers
  * @param[in] extradata_size The size of the extradata buffer
  * @param[in] first_header_size The size of the first header, used to
  * differentiate between the Matroska packing and lavc packing.
  * @param[out] header_start Pointers to the start of the three separate headers.
  * @param[out] header_len The sizes of each of the three headers.
  * @return On error a negative value is returned, on success zero.
  */
 int ff_split_xiph_headers(uint8_t *extradata, int extradata_size,
                           int first_header_size, uint8_t *header_start[3],
                           int header_len[3]);

 #endif /* AVCODEC_XIPH_H */