27 lines
821 B
C
27 lines
821 B
C
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#pragma once
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#include "AudioStream.h"
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// Applies a constant DC offset to an audio stream and reduces its amplitude
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// to prevent clipping
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class DCOffset : public AudioStream {
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public:
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DCOffset(std::unique_ptr<AudioStream> inputStream, float offset);
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DCOffset(const DCOffset& rhs, bool reset);
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std::unique_ptr<AudioStream> clone(bool reset) override;
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int getSampleRate() override;
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int getSampleCount() override;
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int getSampleIndex() override;
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void seek(int sampleIndex) override;
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float readSample() override;
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private:
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std::unique_ptr<AudioStream> inputStream;
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float offset;
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float factor;
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};
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std::unique_ptr<AudioStream> addDCOffset(std::unique_ptr<AudioStream> audioStream, float offset, float epsilon = 1.0f / 15000);
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std::unique_ptr<AudioStream> removeDCOffset(std::unique_ptr<AudioStream> audioStream);
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