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https://github.com/moonlight-stream/moonlight-qt
synced 2024-12-14 05:12:27 +00:00
Add experimental Qt audio renderer
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4 changed files with 121 additions and 0 deletions
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@ -89,6 +89,7 @@ SOURCES += \
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streaming/session.cpp \
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streaming/audio/audio.cpp \
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streaming/audio/renderers/sdlaud.cpp \
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streaming/audio/renderers/qtaud.cpp \
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gui/computermodel.cpp \
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gui/appmodel.cpp \
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streaming/streamutils.cpp \
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@ -107,6 +108,7 @@ HEADERS += \
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streaming/session.hpp \
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streaming/audio/renderers/renderer.h \
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streaming/audio/renderers/sdl.h \
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streaming/audio/renderers/qtaud.h \
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gui/computermodel.h \
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gui/appmodel.h \
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streaming/video/decoder.h \
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@ -1,6 +1,7 @@
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#include "../session.hpp"
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#include "renderers/renderer.h"
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#include "renderers/sdl.h"
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#include "renderers/qtaud.h"
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#include <Limelight.h>
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94
app/streaming/audio/renderers/qtaud.cpp
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94
app/streaming/audio/renderers/qtaud.cpp
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@ -0,0 +1,94 @@
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#include "qtaud.h"
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#include <QDebug>
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QtAudioRenderer::QtAudioRenderer()
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: m_AudioOutput(nullptr),
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m_OutputDevice(nullptr)
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{
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}
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QtAudioRenderer::~QtAudioRenderer()
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{
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delete m_AudioOutput;
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}
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bool QtAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig)
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{
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QAudioFormat format;
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// testAudio() assumes this sample rate
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Q_ASSERT(opusConfig->sampleRate == 48000);
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format.setSampleRate(opusConfig->sampleRate);
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format.setChannelCount(opusConfig->channelCount);
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format.setSampleSize(16);
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format.setSampleType(QAudioFormat::SignedInt);
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format.setCodec("audio/pcm");
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m_AudioOutput = new QAudioOutput(format);
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m_AudioOutput->setBufferSize(SAMPLES_PER_FRAME * 2);
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qInfo() << "Audio stream buffer:" << m_AudioOutput->bufferSize() << "bytes";
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m_OutputDevice = m_AudioOutput->start();
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if (m_OutputDevice == nullptr) {
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qWarning() << "Audio start failed:" << m_AudioOutput->error();
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return false;
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}
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return true;
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}
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void QtAudioRenderer::submitAudio(short* audioBuffer, int audioSize)
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{
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m_OutputDevice->write((const char *)audioBuffer, audioSize);
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}
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bool QtAudioRenderer::testAudio(int audioConfiguration)
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{
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QAudioFormat format;
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format.setSampleRate(48000);
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format.setSampleSize(16);
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format.setSampleType(QAudioFormat::SignedInt);
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format.setCodec("audio/pcm");
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switch (audioConfiguration) {
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case AUDIO_CONFIGURATION_STEREO:
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format.setChannelCount(2);
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break;
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case AUDIO_CONFIGURATION_51_SURROUND:
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format.setChannelCount(6);
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break;
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default:
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Q_ASSERT(false);
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return false;
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}
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if (QAudioDeviceInfo::defaultOutputDevice().isFormatSupported(format)) {
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qInfo() << "Audio test successful with" << format.channelCount() << "channels";
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return true;
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}
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else {
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qWarning() << "Audio test failed with" << format.channelCount() << "channels";
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return false;
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}
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}
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int QtAudioRenderer::detectAudioConfiguration()
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{
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int preferredChannelCount = QAudioDeviceInfo::defaultOutputDevice().preferredFormat().channelCount();
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qInfo() << "Audio output device prefers" << preferredChannelCount << "channel configuration";
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// We can better downmix 5.1 to quad than we can upmix stereo
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if (preferredChannelCount > 2) {
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return AUDIO_CONFIGURATION_51_SURROUND;
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}
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else {
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return AUDIO_CONFIGURATION_STEREO;
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}
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}
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24
app/streaming/audio/renderers/qtaud.h
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24
app/streaming/audio/renderers/qtaud.h
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@ -0,0 +1,24 @@
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#pragma once
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#include "renderer.h"
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#include <QAudioOutput>
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class QtAudioRenderer : public IAudioRenderer
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{
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public:
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QtAudioRenderer();
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virtual ~QtAudioRenderer();
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virtual bool prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig);
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virtual void submitAudio(short* audioBuffer, int audioSize);
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virtual bool testAudio(int audioConfiguration);
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virtual int detectAudioConfiguration();
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private:
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QAudioOutput* m_AudioOutput;
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QIODevice* m_OutputDevice;
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};
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