audiofile.h

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#ifndef CPPAPE_AUDIOFILE_H
#define CPPAPE_AUDIOFILE_H
 
#include "baselib.h"
#include "misc.h"
 
namespace ape
{
    class AudioFile : public umatrix<const float>
    {
    public:
 
        using umatrix<const float>::data;
        using umatrix<const float>::samples;
 
        AudioFile(const char* relativePath) : AudioFile(loadFile(relativePath)) { }
 
        explicit operator bool() const noexcept { return loadedOk() && data && samples(); }
 
        bool loadedOk() const noexcept { return fileLoadedOk; }
        double sampleRate() const noexcept { return fileSampleRate; }
        const char* name() const noexcept { return fileName; }
 
    protected:
 
        static APE_AudioFile loadFile(const char* relativePath, double sampleRate = APE_SampleRate_Retain)
        {
            APE_AudioFile file;
            getInterface().loadAudioFile(&getInterface(), relativePath, sampleRate, &file);
 
            return file;
        }
 
        AudioFile(const APE_AudioFile& audioFile)
            : umatrix<const float>{audioFile.data, audioFile.channels, audioFile.samples}
            , fileLoadedOk(audioFile.name)
            , fileSampleRate(audioFile.sampleRate)
            , fileName(audioFile.name)
            , preciseLength(audioFile.fractionalLength)
        {
 
        }
 
    protected:
 
        double preciseLength;
 
    private:
 
        bool fileLoadedOk;
        double fileSampleRate;
        const char* fileName;
    };
 
    class ResampledAudioFile : public AudioFile
    {
        using AudioFile::loadFile;
    public:
 
        constexpr static double AdoptProjectRate = APE_SampleRate_Adopt;
        constexpr static double OriginalSampleRate = APE_SampleRate_Retain;
 
        ResampledAudioFile(const char* relativePath, double targetSampleRate = AdoptProjectRate) : AudioFile(loadFile(relativePath, targetSampleRate)) { }
 
        double fractionalLength() const noexcept { return this->preciseLength; }
    };
 
}
 
#endif