juce_AudioCDReader.h

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 /*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited
 
   JUCE is an open source library subject to commercial or open-source
   licensing.
 
   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
   Agreement and JUCE Privacy Policy.
 
   End User License Agreement: www.juce.com/juce-7-licence
   Privacy Policy: www.juce.com/juce-privacy-policy
 
   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).
 
   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.
 
  ==============================================================================
*/
 
namespace juce
{
 
#if JUCE_USE_CDREADER || DOXYGEN
 
//==============================================================================
class JUCE_API  AudioCDReader  : public AudioFormatReader
{
public:
    //==============================================================================
    static StringArray getAvailableCDNames();
 
    static AudioCDReader* createReaderForCD (int index);
 
    //==============================================================================
    ~AudioCDReader() override;
 
    bool readSamples (int* const* destSamples, int numDestChannels, int startOffsetInDestBuffer,
                      int64 startSampleInFile, int numSamples) override;
 
    bool isCDStillPresent() const;
 
    int getNumTracks() const;
 
    int getPositionOfTrackStart (int trackNum) const;
 
    bool isTrackAudio (int trackNum) const;
 
    const Array<int>& getTrackOffsets() const;
 
    void refreshTrackLengths();
 
    void enableIndexScanning (bool enabled);
 
    int getLastIndex() const;
 
    Array<int> findIndexesInTrack (int trackNumber);
 
    int getCDDBId();
 
    void ejectDisk();
 
    //==============================================================================
    enum
    {
        framesPerSecond = 75,
        samplesPerFrame = 44100 / framesPerSecond
    };
 
private:
    //==============================================================================
    Array<int> trackStartSamples;
 
   #if JUCE_MAC
    File volumeDir;
    Array<File> tracks;
    int currentReaderTrack;
    std::unique_ptr<AudioFormatReader> reader;
    AudioCDReader (const File& volume);
 
   #elif JUCE_WINDOWS
    bool audioTracks [100];
    void* handle;
    MemoryBlock buffer;
    bool indexingEnabled;
    int lastIndex, firstFrameInBuffer, samplesInBuffer;
    AudioCDReader (void* handle);
    int getIndexAt (int samplePos);
 
   #elif JUCE_LINUX || JUCE_BSD
    AudioCDReader();
   #endif
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioCDReader)
};
 
#endif
 
} // namespace juce