107 lines
3.8 KiB
C++
107 lines
3.8 KiB
C++
// Copyright 2009-2023 The Mumble Developers. All rights reserved.
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file at the root of the
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// Mumble source tree or at <https://www.mumble.info/LICENSE>.
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#ifndef MUMBLE_MUMBLE_COREAUDIO_H_
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# define MUMBLE_MUMBLE_COREAUDIO_H_
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# include "AudioInput.h"
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# include "AudioOutput.h"
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# include <AudioToolbox/AudioToolbox.h>
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enum AUDirection { OUTPUT = 0, INPUT = 1 };
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class CoreAudioSystem : public QObject {
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private:
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Q_OBJECT
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Q_DISABLE_COPY(CoreAudioSystem)
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public:
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static const QHash< QString, QString > getDevices(bool input, bool echo);
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static const QList< audioDevice > getDeviceChoices(bool input);
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};
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class CoreAudioInput : public AudioInput {
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private:
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Q_OBJECT
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Q_DISABLE_COPY(CoreAudioInput)
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/// Open HAL AU as input and pass back the output stream description.
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bool openAUHAL(AudioStreamBasicDescription &streamDescription);
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/// Open VoiceProcessingIO AU as input, utilizing macOS's builtin echo cancellation,
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/// and pass back the output stream description.
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bool openAUVoip(AudioStreamBasicDescription &streamDescription);
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/// Initialize input AU with preferred parameters of Mumble
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bool initializeInputAU(AudioUnit au, AudioStreamBasicDescription &streamDescription, int &actualBufferLength);
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protected:
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/// Hardware Abstraction Layer's AudioUnit, directly interacts with the hardware
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AudioUnit auHAL{};
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/// VoiceProcessingIO AU, provides audio input and echo cancellation
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AudioUnit auVoip{};
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AudioDeviceID inputDevId{};
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AudioDeviceID echoOutputDevId{};
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AudioBufferList buflist{};
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static void propertyChange(void *udata, AudioUnit au, AudioUnitPropertyID prop, AudioUnitScope scope,
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AudioUnitElement element);
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static OSStatus deviceChange(AudioObjectID inObjectID, UInt32 inNumberAddresses,
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const AudioObjectPropertyAddress inAddresses[], void *udata);
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static OSStatus inputCallback(void *udata, AudioUnitRenderActionFlags *flags, const AudioTimeStamp *ts,
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UInt32 busnum, UInt32 npackets, AudioBufferList *buflist);
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public:
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CoreAudioInput();
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~CoreAudioInput() Q_DECL_OVERRIDE;
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void run() Q_DECL_OVERRIDE;
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void stop();
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};
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class CoreAudioOutput : public AudioOutput {
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private:
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Q_OBJECT
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Q_DISABLE_COPY(CoreAudioOutput)
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protected:
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/// Hardware Abstraction Layer's AudioOutputUnit, directly interacts with the hardware
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AudioUnit auHAL{};
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static void propertyChange(void *udata, AudioUnit au, AudioUnitPropertyID prop, AudioUnitScope scope,
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AudioUnitElement element);
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static OSStatus deviceChange(AudioObjectID inObjectID, UInt32 inNumberAddresses,
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const AudioObjectPropertyAddress inAddresses[], void *udata);
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static OSStatus outputCallback(void *udata, AudioUnitRenderActionFlags *flags, const AudioTimeStamp *ts,
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UInt32 busnum, UInt32 npackets, AudioBufferList *buflist);
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public:
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CoreAudioOutput();
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~CoreAudioOutput() Q_DECL_OVERRIDE;
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void run() Q_DECL_OVERRIDE;
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void stop();
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};
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class CoreAudioInputRegistrar : public AudioInputRegistrar {
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public:
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CoreAudioInputRegistrar();
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virtual AudioInput *create();
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virtual const QVariant getDeviceChoice();
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virtual const QList< audioDevice > getDeviceChoices();
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virtual void setDeviceChoice(const QVariant &, Settings &);
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virtual bool canEcho(EchoCancelOptionID echoCancelID, const QString &outputSystem) const;
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virtual bool isMicrophoneAccessDeniedByOS();
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};
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class CoreAudioOutputRegistrar : public AudioOutputRegistrar {
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public:
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CoreAudioOutputRegistrar() : AudioOutputRegistrar(QLatin1String("CoreAudio"), 10) {}
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virtual AudioOutput *create();
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virtual const QVariant getDeviceChoice();
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virtual const QList< audioDevice > getDeviceChoices();
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virtual void setDeviceChoice(const QVariant &, Settings &);
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bool canMuteOthers() const;
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};
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#else
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class CoreAudioSystem;
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class CoreAudioInput;
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class CoreAudioOutput;
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#endif
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