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@1041: using std::vector;
Chris@1041: 
Chris@1041: vector<SampleBlock>
Chris@1041: AudioFileReader::getDeInterleavedFrames(sv_frame_t start, sv_frame_t count) const
Chris@327: {
Chris@1041:     SampleBlock interleaved = getInterleavedFrames(start, count);
Chris@327:     
Chris@929:     int channels = getChannelCount();
Chris@1038:     sv_frame_t rc = interleaved.size() / channels;
Chris@327: 
Chris@1041:     vector<SampleBlock> frames(channels, SampleBlock(rc, 0.f));
Chris@1041:     
Chris@929:     for (int c = 0; c < channels; ++c) {
Chris@1041:         for (sv_frame_t i = 0; i < rc; ++i) {
Chris@1041:             frames[c][i] = interleaved[i * channels + c];
Chris@1041:         }
Chris@327:     }
Chris@327: 
Chris@1041:     return frames;
Chris@327: }
Chris@327: