summaryrefslogtreecommitdiffstats
path: root/src/audio_core/sink/cubeb_sink.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/audio_core/sink/cubeb_sink.h')
-rw-r--r--src/audio_core/sink/cubeb_sink.h110
1 files changed, 110 insertions, 0 deletions
diff --git a/src/audio_core/sink/cubeb_sink.h b/src/audio_core/sink/cubeb_sink.h
new file mode 100644
index 000000000..f0f43dfa1
--- /dev/null
+++ b/src/audio_core/sink/cubeb_sink.h
@@ -0,0 +1,110 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include <cubeb/cubeb.h>
+
+#include "audio_core/sink/sink.h"
+
+namespace Core {
+class System;
+}
+
+namespace AudioCore::Sink {
+class SinkStream;
+
+/**
+ * Cubeb backend sink, holds multiple output streams and is responsible for sinking samples to
+ * hardware. Used by Audio Render, Audio In and Audio Out.
+ */
+class CubebSink final : public Sink {
+public:
+ explicit CubebSink(std::string_view device_id);
+ ~CubebSink() override;
+
+ /**
+ * Create a new sink stream.
+ *
+ * @param system - Core system.
+ * @param system_channels - Number of channels the audio system expects.
+ * May differ from the device's channel count.
+ * @param name - Name of this stream.
+ * @param type - Type of this stream, render/in/out.
+ * @param event - Audio render only, a signal used to prevent the renderer running too
+ * fast.
+ * @return A pointer to the created SinkStream
+ */
+ SinkStream* AcquireSinkStream(Core::System& system, u32 system_channels,
+ const std::string& name, StreamType type) override;
+
+ /**
+ * Close a given stream.
+ *
+ * @param stream - The stream to close.
+ */
+ void CloseStream(const SinkStream* stream) override;
+
+ /**
+ * Close all streams.
+ */
+ void CloseStreams() override;
+
+ /**
+ * Pause all streams.
+ */
+ void PauseStreams() override;
+
+ /**
+ * Unpause all streams.
+ */
+ void UnpauseStreams() override;
+
+ /**
+ * Get the device volume. Set from calls to the IAudioDevice service.
+ *
+ * @return Volume of the device.
+ */
+ f32 GetDeviceVolume() const override;
+
+ /**
+ * Set the device volume. Set from calls to the IAudioDevice service.
+ *
+ * @param volume - New volume of the device.
+ */
+ void SetDeviceVolume(f32 volume) override;
+
+ /**
+ * Set the system volume. Comes from the audio system using this stream.
+ *
+ * @param volume - New volume of the system.
+ */
+ void SetSystemVolume(f32 volume) override;
+
+private:
+ /// Backend Cubeb context
+ cubeb* ctx{};
+ /// Cubeb id of the actual hardware output device
+ cubeb_devid output_device{};
+ /// Cubeb id of the actual hardware input device
+ cubeb_devid input_device{};
+ /// Vector of streams managed by this sink
+ std::vector<SinkStreamPtr> sink_streams{};
+
+#ifdef _WIN32
+ /// Cubeb required COM to be initialized multi-threaded on Windows
+ u32 com_init_result = 0;
+#endif
+};
+
+/**
+ * Get a list of conencted devices from Cubeb.
+ *
+ * @param capture - Return input (capture) devices if true, otherwise output devices.
+ */
+std::vector<std::string> ListCubebSinkDevices(bool capture);
+
+} // namespace AudioCore::Sink