/*******************************************************************************/ /* Copyright (C) 2008 Jonathan Moore Liles */ /* */ /* This program is free software; you can redistribute it and/or modify it */ /* under the terms of the GNU General Public License as published by the */ /* Free Software Foundation; either version 2 of the License, or (at your */ /* option) any later version. */ /* */ /* This program 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 General Public License for */ /* more details. */ /* */ /* You should have received a copy of the GNU General Public License along */ /* with This program; see the file COPYING. If not,write to the Free Software */ /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /*******************************************************************************/ #pragma once /* Base class for all audio file library interfaces */ #include #include "types.h" typedef float sample_t; #include "Peaks.H" #include #include using namespace std; class Audio_File { static map _open_files; protected: const char *_filename; nframes_t _length; /* length of file in samples */ int _channels; Peaks *_peaks; public: Audio_File ( ) { _filename = NULL; _length = _channels = 0; } static Audio_File *from_file ( const char *filename ); Peaks const * peaks ( ) { return _peaks; } const char *name ( void ) const { return _filename; } nframes_t length ( void ) const { return _length; } int channels ( void ) const { return _channels; } // Peaks const * peaks ( void ) { return &_peaks; } virtual bool open ( void ) = 0; virtual void close ( void ) = 0; virtual void seek ( nframes_t offset ) = 0; virtual nframes_t read ( sample_t *buf, int channel, nframes_t len ) = 0; virtual nframes_t read ( sample_t *buf, int channel, nframes_t start, nframes_t end ) = 0; bool read_peaks( float fpp, nframes_t start, nframes_t end, int *peaks, Peak **pbuf, int *channels ); };