mirror of
https://github.com/gnif/LookingGlass.git
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947f03ede6
Open the optional audio broker from a passive worker and move bounded playback and capture packets through a transport-neutral audio hub. Attach audio sources after transport initialization without making audio driver availability part of display transport readiness.
95 lines
2.9 KiB
C++
95 lines
2.9 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 "transport/IAudioSource.h"
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#include <memory>
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struct LGAudioDeviceSnapshot
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{
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AudioEndpointStatus status;
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bool open = false;
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bool bound = false;
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bool activeRequested = false;
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bool deactivating = false;
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uint64_t renderPackets = 0;
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uint64_t renderBytes = 0;
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uint64_t capturePackets = 0;
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uint64_t captureBytes = 0;
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uint64_t reconnects = 0;
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uint32_t lastError = 0;
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};
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class ILGAudioDeviceEvents
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{
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public:
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virtual ~ILGAudioDeviceEvents() = default;
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virtual void LGAudioState(const AudioEndpointStatus& state) = 0;
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virtual AudioResult LGAudioPlayback(const AudioPacket& packet,
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const uint8_t * data, size_t size) = 0;
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virtual void LGAudioCaptureReady() = 0;
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};
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class ILGAudioDevice
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{
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public:
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virtual ~ILGAudioDevice() = default;
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// Methods are thread-safe and nonblocking except Stop. Stop is a callback-
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// quiescence barrier; after it returns no event callback can still run.
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virtual bool Start(ILGAudioDeviceEvents& events) = 0;
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virtual void Stop() = 0;
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virtual LGAudioDeviceSnapshot Snapshot() const = 0;
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virtual AudioResult SetActive(bool active) = 0;
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virtual AudioResult SendCapture(const AudioPacket& packet,
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const uint8_t * data, size_t size) = 0;
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virtual AudioResult SetClockFeedback(
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const AudioClockFeedback& feedback) = 0;
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virtual void PlaybackReceiveReady() = 0;
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};
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class CLGAudioDevice final : public ILGAudioDevice
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{
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private:
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class CState;
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std::unique_ptr<CState> m_state;
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public:
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CLGAudioDevice();
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~CLGAudioDevice();
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CLGAudioDevice(const CLGAudioDevice&) = delete;
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CLGAudioDevice& operator=(const CLGAudioDevice&) = delete;
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bool Start(ILGAudioDeviceEvents& events) override;
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void Stop() override;
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LGAudioDeviceSnapshot Snapshot() const override;
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AudioResult SetActive(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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};
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