mirror of https://github.com/AxioDL/amuse.git
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
#pragma once
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#include <array>
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#include <cstddef>
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namespace amuse {
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class IBackendSubmix;
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/** Same channel enums from boo, used for matrix coefficient table index */
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enum class AudioChannel {
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FrontLeft,
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FrontRight,
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RearLeft,
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RearRight,
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FrontCenter,
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LFE,
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SideLeft,
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SideRight,
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Unknown = 0xff
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};
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constexpr size_t NumChannels = 8;
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/** Same structure from boo, used to represent interleaved speaker layout */
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struct ChannelMap {
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unsigned m_channelCount = 0;
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AudioChannel m_channels[NumChannels] = {};
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};
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/** Client-implemented voice instance */
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class IBackendVoice {
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public:
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virtual ~IBackendVoice() = default;
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/** Set new sample rate into platform voice (may result in artifacts while playing) */
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virtual void resetSampleRate(double sampleRate) = 0;
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/** Reset channel-gains to silence and unbind all submixes */
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virtual void resetChannelLevels() = 0;
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/** Set channel-gains for audio source (AudioChannel enum for array index) */
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virtual void setChannelLevels(IBackendSubmix* submix, const std::array<float, 8>& coefs, bool slew) = 0;
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/** Called by client to dynamically adjust the pitch of voices with dynamic pitch enabled */
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virtual void setPitchRatio(double ratio, bool slew) = 0;
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/** Instructs platform to begin consuming sample data; invoking callback as needed */
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virtual void start() = 0;
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/** Instructs platform to stop consuming sample data */
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virtual void stop() = 0;
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};
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} // namespace amuse
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