svcore
1.9
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00001 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ 00002 00003 /* 00004 Sonic Visualiser 00005 An audio file viewer and annotation editor. 00006 Centre for Digital Music, Queen Mary, University of London. 00007 This file copyright 2006 Chris Cannam. 00008 00009 This program is free software; you can redistribute it and/or 00010 modify it under the terms of the GNU General Public License as 00011 published by the Free Software Foundation; either version 2 of the 00012 License, or (at your option) any later version. See the file 00013 COPYING included with this distribution for more information. 00014 */ 00015 00016 #include "AudioFileReader.h" 00017 00018 void 00019 AudioFileReader::getDeInterleavedFrames(int start, int count, 00020 std::vector<SampleBlock> &frames) const 00021 { 00022 SampleBlock interleaved; 00023 getInterleavedFrames(start, count, interleaved); 00024 00025 int channels = getChannelCount(); 00026 int rc = interleaved.size() / channels; 00027 00028 frames.clear(); 00029 00030 for (int c = 0; c < channels; ++c) { 00031 frames.push_back(SampleBlock()); 00032 } 00033 00034 for (int i = 0; i < rc; ++i) { 00035 for (int c = 0; c < channels; ++c) { 00036 frames[c].push_back(interleaved[i * channels + c]); 00037 } 00038 } 00039 } 00040