• Main Page
  • Related Pages
  • Modules
  • Data Structures
  • Files
  • File List
  • Globals

libavcodec/flac.h

Go to the documentation of this file.
00001 /*
00002  * FLAC (Free Lossless Audio Codec) decoder/demuxer common functions
00003  * Copyright (c) 2008 Justin Ruggles
00004  *
00005  * This file is part of FFmpeg.
00006  *
00007  * FFmpeg is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * FFmpeg is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with FFmpeg; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00020  */
00021 
00027 #ifndef AVCODEC_FLAC_H
00028 #define AVCODEC_FLAC_H
00029 
00030 #include "avcodec.h"
00031 
00032 #define FLAC_STREAMINFO_SIZE 34
00033 
00034 enum {
00035     FLAC_METADATA_TYPE_STREAMINFO = 0,
00036     FLAC_METADATA_TYPE_PADDING,
00037     FLAC_METADATA_TYPE_APPLICATION,
00038     FLAC_METADATA_TYPE_SEEKTABLE,
00039     FLAC_METADATA_TYPE_VORBIS_COMMENT,
00040     FLAC_METADATA_TYPE_CUESHEET,
00041     FLAC_METADATA_TYPE_PICTURE,
00042     FLAC_METADATA_TYPE_INVALID = 127
00043 };
00044 
00045 enum FLACExtradataFormat {
00046     FLAC_EXTRADATA_FORMAT_STREAMINFO  = 0,
00047     FLAC_EXTRADATA_FORMAT_FULL_HEADER = 1
00048 };
00049 
00054 #define FLACSTREAMINFO \
00055     int min_blocksize;      \
00056     int max_blocksize;      \
00057     int max_framesize;      \
00058     int samplerate;         \
00059     int channels;           \
00060     int bps;                \
00061     int64_t samples;        \
00062 
00063 typedef struct FLACStreaminfo {
00064     FLACSTREAMINFO
00065 } FLACStreaminfo;
00066 
00073 void ff_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *s,
00074                               const uint8_t *buffer);
00075 
00083 int ff_flac_is_extradata_valid(AVCodecContext *avctx,
00084                                enum FLACExtradataFormat *format,
00085                                uint8_t **streaminfo_start);
00086 
00087 #endif /* AVCODEC_FLAC_H */

Generated on Sat Feb 16 2013 09:23:12 for ffmpeg by  doxygen 1.7.1