new-session-manager/Audio_File.C

/*******************************************************************************/
/* 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.  */
/*******************************************************************************/

#include "Audio_File.H"
#include "Audio_File_SF.H"

map <string, Audio_File*> Audio_File::_open_files;

/** attmpet to open any supported filetype */
Audio_File *
Audio_File::from_file ( const char * filename )
{

    Audio_File *a;

    if ( ( a = _open_files[ string( filename ) ] ) )
        return a;

    if ( ( a = Audio_File_SF::from_file( filename ) ) )
        goto done;

// TODO: other formats

    return NULL;

done:


    a->_peaks = new Peaks[ a->channels() ];

    for ( int i = a->channels(); i-- ; )
    {
        a->_peaks[i].channel( i );
        a->_peaks[i].clip( a );
        a->_peaks[i].open();
    }

    _open_files[ string( filename ) ] = a;

    return a;
}