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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Sonic Visualiser
An audio file viewer and annotation editor.
Centre for Digital Music, Queen Mary, University of London.
This file copyright 2006 Chris Cannam.
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. See the file
COPYING included with this distribution for more information.
*/
#include "AudioFileReader.h"
namespace sv {
using std::vector;
vector<floatvec_t>
AudioFileReader::getDeInterleavedFrames(sv_frame_t start, sv_frame_t count) const
{
floatvec_t interleaved = getInterleavedFrames(start, count);
int channels = getChannelCount();
if (channels == 1) return { interleaved };
sv_frame_t rc = interleaved.size() / channels;
vector<floatvec_t> frames(channels, floatvec_t(rc, 0.f));
for (int c = 0; c < channels; ++c) {
for (sv_frame_t i = 0; i < rc; ++i) {
frames[c][i] = interleaved[i * channels + c];
}
}
return frames;
}
} // end namespace sv
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