WaveTrackSink.h

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  @file WaveTrackSink.h
  @brief Adapter of WaveTrack to the interface AudioGraph::Sink
 
  Dominic Mazzoni
  Vaughan Johnson
 
  Paul Licameli split from PerTrackEffect.h
 
**********************************************************************/
 
#ifndef __AUDACITY_WAVE_TRACK_SINK__
#define __AUDACITY_WAVE_TRACK_SINK__
 
#include "AudioGraphSink.h" // to inherit
#include "SampleCount.h"
#include "SampleFormat.h"
#include <memory>
 
class WaveChannel;
class WaveTrack;
class TrackList;
 
class WAVE_TRACK_API WaveTrackSink final : public AudioGraph::Sink {
public:
   WaveTrackSink(WaveChannel &left, WaveChannel *pRight,
      WaveTrack *pGenerated, sampleCount start, bool isProcessor,
      sampleFormat effectiveFormat);
   ~WaveTrackSink() override;
 
   bool AcceptsBuffers(const Buffers &buffers) const override;
 
   bool Acquire(Buffers &data) override;
   bool Release(const Buffers &data, size_t curBlockSize) override;
 
   void Flush(Buffers &data);
 
   bool IsOk() const { return mOk; }
 
private:
   void DoConsume(Buffers &data);
 
   WaveChannel &mLeft;
   WaveChannel *const mpRight;
   WaveTrack *const mpGenerated;
   WaveChannel *const mGenLeft;
   WaveChannel *const mGenRight;
   const bool mIsProcessor;
   const sampleFormat mEffectiveFormat;
 
   sampleCount mOutPos;
   bool mOk{ true };
};
#endif