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#ifndef AudioDSPKernel_h
#define AudioDSPKernel_h
#include "platform/audio/AudioDSPKernelProcessor.h"
namespace WebCore {
// AudioDSPKernel does the processing for one channel of an AudioDSPKernelProcessor.
class PLATFORM_EXPORT AudioDSPKernel {
public:
AudioDSPKernel(AudioDSPKernelProcessor* kernelProcessor)
: m_kernelProcessor(kernelProcessor)
, m_sampleRate(kernelProcessor->sampleRate())
{
}
AudioDSPKernel(float sampleRate)
: m_kernelProcessor(0)
, m_sampleRate(sampleRate)
{
}
virtual ~AudioDSPKernel();
// Subclasses must override process() to do the processing and reset() to reset DSP state.
virtual void process(const float* source, float* destination, size_t framesToProcess) = 0;
virtual void reset() = 0;
float sampleRate() const { return m_sampleRate; }
double nyquist() const { return 0.5 * sampleRate(); }
AudioDSPKernelProcessor* processor() { return m_kernelProcessor; }
const AudioDSPKernelProcessor* processor() const { return m_kernelProcessor; }
virtual double tailTime() const = 0;
virtual double latencyTime() const = 0;
protected:
AudioDSPKernelProcessor* m_kernelProcessor;
float m_sampleRate;
};
} // namespace WebCore
#endif // AudioDSPKernel_h