AudioCodec.hxx

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00001 /*
00002  * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
00003  *                         UNIVERSITAT POMPEU FABRA
00004  *
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2 of the License, or
00009  * (at your option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License
00017  * along with this program; if not, write to the Free Software
00018  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00019  *
00020  */
00021 
00022 #ifndef __AUDIOCODEC__
00023 #define __AUDIOCODEC__
00024 
00025 #include <string>
00026 
00027 namespace CLAM
00028 {
00029 
00030         class AudioFile;
00031         class AudioFileHeader;
00032         class AudioTextDescriptors;
00033 
00034 namespace AudioCodecs
00035 {
00036         class Stream;
00037 
00043         class Codec
00044         {
00045         public:
00046                 virtual          ~Codec();
00047                 static bool      FileExists( std::string filename );
00049                 virtual bool     IsReadable( std::string filename ) const = 0;
00051                 virtual bool     IsWritable( std::string filename, const AudioFileHeader& ) const = 0;
00053                 virtual Stream*  GetStreamFor( const AudioFile& ) = 0;
00055                 virtual void     RetrieveHeaderData( std::string uri, AudioFileHeader& ) = 0;
00057                 virtual void     RetrieveTextDescriptors( std::string uri, AudioTextDescriptors& );
00058         };
00059 }
00060 
00061 }
00062 
00063 
00064 #endif // AudioCodec.hxx
00065