mirror of
https://github.com/gnif/LookingGlass.git
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56f3305fe8
Give microphone data priority over replaceable clock feedback and reduce feedback traffic on the shared client-to-host FIFO. Retry short FIFO stalls outside the realtime thread and coalesce consecutive packets in the existing fixed Windows buffers. Avoid one broker write per tiny PipeWire quantum without adding allocations or intentional capture latency.
84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
/**
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* Looking Glass
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* Copyright © 2017-2026 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#pragma once
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#include "CSRWLock.h"
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#include "audio/CLGAudioDevice.h"
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#include "transport/IAudioSource.h"
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#include "transport/ITransport.h"
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#include <memory>
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class CAudioHub final : public IAudioTarget,
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private IAudioDeviceEvents
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{
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private:
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CSRWLock m_lifecycleLock;
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CSRWLock m_callbackLock;
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CSRWLock m_lock;
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std::unique_ptr<ILGAudioDevice> m_device;
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IAudioSource * m_source = nullptr;
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BackendId m_backend = 0;
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uint32_t m_epoch = 0;
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bool m_deviceStarted = false;
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bool m_active = false;
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bool m_running = false;
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bool m_reserved = false;
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bool m_failed = false;
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bool m_failurePending = false;
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bool m_deactivating = false;
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uint64_t m_deactivationGeneration = 0;
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bool m_stopped = false;
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bool StartDevice();
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bool MarkFailed(IAudioSource * source);
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void LGAudioState(const AudioEndpointStatus& state) override;
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AudioResult LGAudioPlayback(const AudioPacket& packet,
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const uint8_t * data, size_t size) override;
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void LGAudioCaptureReady() override;
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public:
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CAudioHub();
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explicit CAudioHub(std::unique_ptr<ILGAudioDevice> device);
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~CAudioHub() override;
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CAudioHub(const CAudioHub&) = delete;
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CAudioHub& operator=(const CAudioHub&) = delete;
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// Start only creates the passive connector worker. Broker absence or an
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// incompatible/busy broker is reported through state and is not failure.
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bool Start();
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bool Bind(BackendId backend, uint32_t epoch, IAudioSource& source);
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void Unbind(BackendId backend, uint32_t epoch);
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bool TakeFailure(SourceKey& source);
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LGAudioDeviceSnapshot Snapshot() const;
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void Stop();
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AudioResult SetAudioActive(bool active) override;
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AudioResult SendCapture(const AudioPacket& packet,
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const uint8_t * data, size_t size) override;
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AudioResult SetClockFeedback(
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const AudioClockFeedback& feedback) override;
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void PlaybackReceiveReady() override;
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void AudioFailed() override;
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};
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