86 lines
2.1 KiB
C++
86 lines
2.1 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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SoundTouchEffect.h
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Dominic Mazzoni, Vaughan Johnson
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This abstract class contains all of the common code for an
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effect that uses SoundTouch to do its processing (ChangeTempo
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and ChangePitch).
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**********************************************************************/
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#if USE_SOUNDTOUCH
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#ifndef __AUDACITY_EFFECT_SOUNDTOUCH__
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#define __AUDACITY_EFFECT_SOUNDTOUCH__
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#include "Effect.h"
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// forward declaration of a class defined in SoundTouch.h
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// which is not included here
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namespace soundtouch { class SoundTouch; }
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class TimeWarper;
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class WaveTrack;
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class EffectSoundTouch /* not final */ : public Effect
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{
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public:
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// Effect implementation
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void End() override;
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// EffectSoundTouch implementation
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#ifdef USE_MIDI
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double mSemitones; // pitch change for NoteTracks
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EffectSoundTouch();
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#endif
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~EffectSoundTouch() override;
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protected:
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// Effect implementation
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using InitFunction = std::function< void(soundtouch::SoundTouch *soundtouch) >;
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bool ProcessWithTimeWarper(InitFunction initer,
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const TimeWarper &warper,
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bool preserveLength);
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std::unique_ptr<soundtouch::SoundTouch> mSoundTouch;
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double mCurT0;
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double mCurT1;
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private:
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bool ProcessLabelTrack(LabelTrack *track, const TimeWarper &warper);
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#ifdef USE_MIDI
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bool ProcessNoteTrack(NoteTrack *track, const TimeWarper &warper);
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#endif
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bool ProcessOne(
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WaveTrack * t, sampleCount start, sampleCount end,
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const TimeWarper &warper);
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bool ProcessStereo(WaveTrack* leftTrack, WaveTrack* rightTrack,
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sampleCount start, sampleCount end,
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const TimeWarper &warper);
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bool ProcessStereoResults(const size_t outputCount,
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WaveTrack* outputLeftTrack,
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WaveTrack* outputRightTrack);
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void Finalize(WaveTrack* orig, WaveTrack* out, const TimeWarper &warper);
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bool mPreserveLength;
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int mCurTrackNum;
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double m_maxNewLength;
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};
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#endif
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#endif
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