move to new cspot

components/spotify/cspot/bell/main/audio-dsp/include/BellDSP.h

@@ -0,0 +1,58 @@
+#pragma once
+
+#include <memory>
+#include <mutex>
+#include <vector>
+#include "AudioPipeline.h"
+#include "CentralAudioBuffer.h"
+
+namespace bell {
+#define MAX_INT16 32767
+
+class BellDSP {
+ public:
+  BellDSP(std::shared_ptr<CentralAudioBuffer> centralAudioBuffer);
+  ~BellDSP() {};
+
+  class AudioEffect {
+   public:
+    AudioEffect() = default;
+    ~AudioEffect() = default;
+    size_t duration;
+    virtual void apply(float* sampleData, size_t samples, size_t relativePosition) = 0;
+  };
+
+  class FadeEffect: public AudioEffect {
+  private:
+    std::function<void()> onFinish;
+    bool isFadeIn;
+  public:
+    FadeEffect(size_t duration, bool isFadeIn, std::function<void()> onFinish = nullptr);
+    ~FadeEffect() {};
+
+    void apply(float* sampleData, size_t samples, size_t relativePosition);
+  };
+
+  void applyPipeline(std::shared_ptr<AudioPipeline> pipeline);
+  void queryInstantEffect(std::unique_ptr<AudioEffect> instantEffect);
+
+  std::shared_ptr<AudioPipeline> getActivePipeline();
+
+  size_t process(uint8_t* data, size_t bytes, int channels,
+                 uint32_t sampleRate, BitWidth bitWidth);
+
+ private:
+  std::shared_ptr<AudioPipeline> activePipeline;
+  std::shared_ptr<CentralAudioBuffer> buffer;
+  std::mutex accessMutex;
+  std::vector<float> dataLeft = std::vector<float>(1024);
+  std::vector<float> dataRight = std::vector<float>(1024);
+
+
+  std::unique_ptr<AudioEffect> underflowEffect = nullptr;
+  std::unique_ptr<AudioEffect> startEffect = nullptr;
+  std::unique_ptr<AudioEffect> instantEffect = nullptr;
+
+  size_t samplesSinceInstantQueued;
+};
+};  // namespace bell