src/engine/engine.h


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#pragma once

#include "audio/signalinfo.h"


namespace mixxx {
    // TODO(XXX): When we move from stereo to multi-channel this needs updating.
    static constexpr audio::ChannelCount kEngineChannelCount =
            audio::ChannelCount(2);

    // Contains the information needed to process a buffer of audio
    class EngineParameters {
      public:
        SINT framesPerBuffer() const {
            return m_framesPerBuffer;
        }
        SINT samplesPerBuffer() const {
            return m_outputSignal.frames2samples(framesPerBuffer());
        }

        audio::ChannelCount channelCount() const {
            return m_outputSignal.getChannelCount();
        }

        audio::SampleRate sampleRate() const {
            return m_outputSignal.getSampleRate();
        }

        explicit EngineParameters(
                audio::SampleRate sampleRate,
                SINT framesPerBuffer)
                : m_outputSignal(
                          kEngineChannelCount,
                          sampleRate),
                  m_framesPerBuffer(framesPerBuffer) {
            DEBUG_ASSERT(framesPerBuffer > 0);
        }

      private:
        const audio::SignalInfo m_outputSignal;
        const SINT m_framesPerBuffer;
    };
}