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Fix audio startup failures. Directly calling the static method QAudioDeviceInfo::availableDevices() was not thread-safe.

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This commit is contained in:
Ken Cooke 2016-08-30 10:13:08 -07:00
parent 678ea3ecbf
commit d2b33e00bd
1 changed files with 12 additions and 5 deletions
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17
libraries/audio-client/src/AudioClient.cpp
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@ -82,8 +82,8 @@ public:
void run() override {
while (!_quit) {
_audioClient->checkDevices();
QThread::msleep(DEVICE_CHECK_INTERVAL_MSECS);
_audioClient->checkDevices();
}
}
@ -195,10 +195,17 @@ void AudioClient::audioMixerKilled() {
emit disconnected();
}
// thread-safe
QList<QAudioDeviceInfo> getAvailableDevices(QAudio::Mode mode) {
static std::mutex mutex;
std::lock_guard<std::mutex> lock(mutex);
return QAudioDeviceInfo::availableDevices(mode);
}
QAudioDeviceInfo getNamedAudioDeviceForMode(QAudio::Mode mode, const QString& deviceName) {
QAudioDeviceInfo result;
foreach(QAudioDeviceInfo audioDevice, QAudioDeviceInfo::availableDevices(mode)) {
foreach(QAudioDeviceInfo audioDevice, getAvailableDevices(mode)) {
if (audioDevice.deviceName().trimmed() == deviceName.trimmed()) {
result = audioDevice;
break;
@ -262,7 +269,7 @@ QString AudioClient::friendlyNameForAudioDevice(wchar_t* guid) {
QAudioDeviceInfo defaultAudioDeviceForMode(QAudio::Mode mode) {
#ifdef __APPLE__
if (QAudioDeviceInfo::availableDevices(mode).size() > 1) {
if (getAvailableDevices(mode).size() > 1) {
AudioDeviceID defaultDeviceID = 0;
uint32_t propertySize = sizeof(AudioDeviceID);
AudioObjectPropertyAddress propertyAddress = {
@ -292,7 +299,7 @@ QAudioDeviceInfo defaultAudioDeviceForMode(QAudio::Mode mode) {
if (!getPropertyError && propertySize) {
// find a device in the list that matches the name we have and return it
foreach(QAudioDeviceInfo audioDevice, QAudioDeviceInfo::availableDevices(mode)) {
foreach(QAudioDeviceInfo audioDevice, getAvailableDevices(mode)) {
if (audioDevice.deviceName() == CFStringGetCStringPtr(deviceName, kCFStringEncodingMacRoman)) {
return audioDevice;
}
@ -601,7 +608,7 @@ QString AudioClient::getDefaultDeviceName(QAudio::Mode mode) {
QVector<QString> AudioClient::getDeviceNames(QAudio::Mode mode) {
QVector<QString> deviceNames;
foreach(QAudioDeviceInfo audioDevice, QAudioDeviceInfo::availableDevices(mode)) {
foreach(QAudioDeviceInfo audioDevice, getAvailableDevices(mode)) {
deviceNames << audioDevice.deviceName().trimmed();
}
return deviceNames;