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Diffstat (limited to 'src/audio_core/sink/null_sink.h')
-rw-r--r-- | src/audio_core/sink/null_sink.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/audio_core/sink/null_sink.h b/src/audio_core/sink/null_sink.h new file mode 100644 index 000000000..47a342171 --- /dev/null +++ b/src/audio_core/sink/null_sink.h @@ -0,0 +1,52 @@ +// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include "audio_core/sink/sink.h" +#include "audio_core/sink/sink_stream.h" + +namespace AudioCore::Sink { +/** + * A no-op sink for when no audio out is wanted. + */ +class NullSink final : public Sink { +public: + explicit NullSink(std::string_view) {} + ~NullSink() override = default; + + SinkStream* AcquireSinkStream([[maybe_unused]] Core::System& system, + [[maybe_unused]] u32 system_channels, + [[maybe_unused]] const std::string& name, + [[maybe_unused]] StreamType type) override { + return &null_sink_stream; + } + + void CloseStream([[maybe_unused]] const SinkStream* stream) override {} + void CloseStreams() override {} + void PauseStreams() override {} + void UnpauseStreams() override {} + f32 GetDeviceVolume() const override { + return 1.0f; + } + void SetDeviceVolume(f32 volume) override {} + void SetSystemVolume(f32 volume) override {} + +private: + struct NullSinkStreamImpl final : SinkStream { + void Finalize() override {} + void Start(bool resume = false) override {} + void Stop() override {} + void AppendBuffer([[maybe_unused]] ::AudioCore::Sink::SinkBuffer& buffer, + [[maybe_unused]] std::vector<s16>& samples) override {} + std::vector<s16> ReleaseBuffer([[maybe_unused]] u64 num_samples) override { + return {}; + } + bool IsBufferConsumed([[maybe_unused]] const u64 tag) { + return true; + } + void ClearQueue() override {} + } null_sink_stream; +}; + +} // namespace AudioCore::Sink |