/*
  * Copyright (c) 2014 Tim Walker <tdskywalker@gmail.com>
  *

  * 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
  * internal header for HEVC (de)muxer utilities
  */
 
 #ifndef AVFORMAT_HEVC_H
 #define AVFORMAT_HEVC_H
 
 #include <stdint.h>
 #include "avio.h"
 
 /**

  * Writes Annex B formatted HEVC NAL units to the provided AVIOContext.
  *
  * The NAL units are converted to an MP4-compatible format (start code prefixes
  * are replaced by 4-byte size fields, as per ISO/IEC 14496-15).
  *
  * If filter_ps is non-zero, any HEVC parameter sets found in the input will be
  * discarded, and *ps_count will be set to the number of discarded PS NAL units.
  *
  * @param pb address of the AVIOContext where the data shall be written
  * @param buf_in address of the buffer holding the input data
  * @param size size (in bytes) of the input buffer
  * @param filter_ps whether to write parameter set NAL units to the output (0)
  *        or to discard them (non-zero)
  * @param ps_count address of the variable where the number of discarded
  *        parameter set NAL units shall be written, may be NULL
  * @return the amount (in bytes) of data written in case of success, a negative
  *         value corresponding to an AVERROR code in case of failure
  */
 int ff_hevc_annexb2mp4(AVIOContext *pb, const uint8_t *buf_in,
                        int size, int filter_ps, int *ps_count);
 
 /**
  * Writes Annex B formatted HEVC NAL units to a data buffer.
  *
  * The NAL units are converted to an MP4-compatible format (start code prefixes
  * are replaced by 4-byte size fields, as per ISO/IEC 14496-15).
  *
  * If filter_ps is non-zero, any HEVC parameter sets found in the input will be
  * discarded, and *ps_count will be set to the number of discarded PS NAL units.
  *
  * On output, *size holds the size (in bytes) of the output data buffer.
  *
  * @param buf_in address of the buffer holding the input data
  * @param size address of the variable holding the size (in bytes) of the input
  *        buffer (on input) and of the output buffer (on output)
  * @param buf_out address of the variable holding the address of the output
  *        buffer
  * @param filter_ps whether to write parameter set NAL units to the output (0)
  *        or to discard them (non-zero)
  * @param ps_count address of the variable where the number of discarded
  *        parameter set NAL units shall be written, may be NULL

  * @return the amount (in bytes) of data written in case of success, a negative
  *         value corresponding to an AVERROR code in case of failure

  */
 int ff_hevc_annexb2mp4_buf(const uint8_t *buf_in, uint8_t **buf_out,
                            int *size, int filter_ps, int *ps_count);
 
 /**

  * Writes HEVC extradata (parameter sets, declarative SEI NAL units) to the
  * provided AVIOContext.
  *
  * If the extradata is Annex B format, it gets converted to hvcC format before
  * writing.
  *
  * @param pb address of the AVIOContext where the hvcC shall be written
  * @param data address of the buffer holding the data needed to write the hvcC
  * @param size size (in bytes) of the data buffer
  * @param ps_array_completeness whether all parameter sets are in the hvcC (1)
  *        or there may be additional parameter sets in the bitstream (0)

  * @return >=0 in case of success, a negative value corresponding to an AVERROR

  *         code in case of failure
  */
 int ff_isom_write_hvcc(AVIOContext *pb, const uint8_t *data,
                        int size, int ps_array_completeness);
 
 #endif /* AVFORMAT_HEVC_H */