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https://github.com/juce-framework/JUCE.git
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56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE 6 technical preview.
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Copyright (c) 2017 - ROLI Ltd.
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You may use this code under the terms of the GPL v3
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(see www.gnu.org/licenses).
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For this technical preview, this file is not subject to commercial licensing.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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#if JUCE_USE_CDREADER
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int AudioCDReader::getNumTracks() const
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{
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return trackStartSamples.size() - 1;
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}
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int AudioCDReader::getPositionOfTrackStart (int trackNum) const
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{
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return trackStartSamples [trackNum];
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}
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const Array<int>& AudioCDReader::getTrackOffsets() const
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{
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return trackStartSamples;
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}
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int AudioCDReader::getCDDBId()
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{
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int checksum = 0;
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const int numTracks = getNumTracks();
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for (int i = 0; i < numTracks; ++i)
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for (int offset = (trackStartSamples.getUnchecked(i) + 88200) / 44100; offset > 0; offset /= 10)
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checksum += offset % 10;
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const int length = (trackStartSamples.getLast() - trackStartSamples.getFirst()) / 44100;
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// CCLLLLTT: checksum, length, tracks
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return ((checksum & 0xff) << 24) | (length << 8) | numTracks;
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}
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#endif
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} // namespace juce
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