/*
  * raw FLAC muxer
  * Copyright (C) 2009 Justin Ruggles
  *
  * 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
  */
 

 #include "libavutil/channel_layout.h"
 

 #include "libavcodec/flac.h"

 #include "avformat.h"
 #include "flacenc.h"
 

 int ff_flac_write_header(AVIOContext *pb, uint8_t *extradata,
                          int extradata_size, int last_block)

 {
     uint8_t header[8] = {
         0x66, 0x4C, 0x61, 0x43, 0x00, 0x00, 0x00, 0x22
     };
 
     header[4] = last_block ? 0x80 : 0x00;

     if (extradata_size < FLAC_STREAMINFO_SIZE)

         return AVERROR_INVALIDDATA;

     /* write "fLaC" stream marker and first metadata block header */
     avio_write(pb, header, 8);

     /* write STREAMINFO */

     avio_write(pb, extradata, FLAC_STREAMINFO_SIZE);

 
     return 0;
 }

 
 int ff_flac_is_native_layout(uint64_t channel_layout)
 {
     if (channel_layout == AV_CH_LAYOUT_MONO     ||
         channel_layout == AV_CH_LAYOUT_STEREO   ||
         channel_layout == AV_CH_LAYOUT_SURROUND ||
         channel_layout == AV_CH_LAYOUT_QUAD     ||
         channel_layout == AV_CH_LAYOUT_5POINT0  ||
         channel_layout == AV_CH_LAYOUT_5POINT1  ||
         channel_layout == AV_CH_LAYOUT_6POINT1  ||
         channel_layout == AV_CH_LAYOUT_7POINT1)
         return 1;
     return 0;
 }