Chris@175: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@175: 
Chris@175: /*
Chris@175:     Sonic Visualiser
Chris@175:     An audio file viewer and annotation editor.
Chris@175:     Centre for Digital Music, Queen Mary, University of London.
Chris@175:     This file copyright 2006 Chris Cannam.
Chris@175:     
Chris@175:     This program is free software; you can redistribute it and/or
Chris@175:     modify it under the terms of the GNU General Public License as
Chris@175:     published by the Free Software Foundation; either version 2 of the
Chris@175:     License, or (at your option) any later version.  See the file
Chris@175:     COPYING included with this distribution for more information.
Chris@175: */
Chris@175: 
Chris@175: #include "AudioFileReader.h"
Chris@175: 
Chris@327: void
Chris@929: AudioFileReader::getDeInterleavedFrames(int start, int count,
Chris@327:                                         std::vector<SampleBlock> &frames) const
Chris@327: {
Chris@327:     SampleBlock interleaved;
Chris@327:     getInterleavedFrames(start, count, interleaved);
Chris@327:     
Chris@929:     int channels = getChannelCount();
Chris@929:     int rc = interleaved.size() / channels;
Chris@327: 
Chris@327:     frames.clear();
Chris@327: 
Chris@929:     for (int c = 0; c < channels; ++c) {
Chris@327:         frames.push_back(SampleBlock());
Chris@327:     }
Chris@327: 
Chris@929:     for (int i = 0; i < rc; ++i) {
Chris@929:         for (int c = 0; c < channels; ++c) {
Chris@327:             frames[c].push_back(interleaved[i * channels + c]);
Chris@327:         }
Chris@327:     }
Chris@327: }
Chris@327: