/*
  * RIFF codec tags
  * copyright (c) 2000 Fabrice Bellard
  *

  * 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 RIFF based (de)muxers
  * do NOT include this in end user applications
  */
 

 #ifndef AVFORMAT_RIFF_H
 #define AVFORMAT_RIFF_H

 #include "libavcodec/avcodec.h"

 #include "avio.h"

 #include "internal.h"

 #include "metadata.h"
 
 extern const AVMetadataConv ff_riff_info_conv[];
 extern const char ff_riff_tags[][5];

 int64_t ff_start_tag(AVIOContext *pb, const char *tag);
 void ff_end_tag(AVIOContext *pb, int64_t start);

 /**
  * Read BITMAPINFOHEADER structure and set AVStream codec width, height and
  * bits_per_encoded_sample fields. Does not read extradata.
  * @return codec tag
  */

 int ff_get_bmp_header(AVIOContext *pb, AVStream *st);

 void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf);
 int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc);

 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps);

 int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size);

 extern const AVCodecTag ff_codec_bmp_tags[];
 extern const AVCodecTag ff_codec_wav_tags[];

 unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum CodecID id);

 enum CodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag);

 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
 

 typedef uint8_t ff_asf_guid[16];
 

 int ff_read_riff_info(AVFormatContext *s, int64_t size);
 

 #define FF_PRI_GUID \
     "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
 #define FF_ARG_GUID(g) \
     g[0],g[1],g[2],g[3],g[4],g[5],g[6],g[7],g[8],g[9],g[10],g[11],g[12],g[13],g[14],g[15]
 

 static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
 {
     return memcmp(g1, g2, sizeof(ff_asf_guid));
 }
 
 void ff_get_guid(AVIOContext *s, ff_asf_guid *g);
 

 typedef struct {
     enum CodecID id;
     ff_asf_guid guid;
 } AVCodecGuid;
 
 enum CodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid);
 
 extern const AVCodecGuid ff_codec_wav_guids[];
 
 #define FF_MEDIASUBTYPE_BASE_GUID \
     0x00,0x00,0x10,0x00,0x80,0x00,0x00,0xAA,0x00,0x38,0x9B,0x71
 

 #endif /* AVFORMAT_RIFF_H */