#ifndef AUDIORENDERBACKEND_H
#define AUDIORENDERBACKEND_H

#include "common/timerange.h"
#include "renderbackend.h"

class AudioRenderBackend : public RenderBackend
{
  Q_OBJECT
public:
  AudioRenderBackend(QObject* parent = nullptr);

  /**
   * @brief Set parameters of the Renderer
   *
   * The Renderer owns the buffers that are used in the rendering process and this function sets the kind of buffers
   * to use. The Renderer must be stopped when calling this function.
   */
  void SetParameters(const AudioRenderingParams &params);

  virtual QIODevice* GetAudioPullDevice() = 0;

  const AudioRenderingParams& params();

public slots:
  virtual void InvalidateCache(const rational &start_range, const rational &end_range) override;

protected:
  virtual void ConnectViewer(ViewerOutput* node) override;

  virtual void DisconnectViewer(ViewerOutput* node) override;

  /**
   * @brief Internal function for generating the cache ID
   */
  virtual bool GenerateCacheIDInternal(QCryptographicHash& hash) override;

  virtual NodeInput* GetDependentInput() override;

  QString CachePathName();

private:
  void ValidateRanges();

  AudioRenderingParams params_;

};

#endif // AUDIORENDERBACKEND_H