fergalmoran/ladybird
1
0
Fork 0
mirror of https://github.com/fergalmoran/ladybird.git synced 2026-01-02 22:55:23 +00:00
Code Issues Packages Projects Releases Wiki Activity

Ladybird: Detect changes to the default audio device

Browse Source 
When the default audio device changes on the host, it's convenient to
automatically switch to that device rather than needing to reload the
page to update.
This commit is contained in:
Timothy Flynn
2023-06-21 10:16:42 -04:00
committed by Andreas Kling
parent 8f927eaa68
commit 33dbfa3281
1 changed files with 55 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

61
Ladybird/AudioCodecPluginLadybird.cpp
View File

@@ -27,6 +27,7 @@ struct AudioTask {
Pause,
Seek,
Volume,
RecreateAudioDevice,
};
Type type;
@@ -82,20 +83,64 @@ private:
No,
};
struct AudioDevice {
static AudioDevice create()
{
auto const& device_info = QMediaDevices::defaultAudioOutput();
auto format = device_info.preferredFormat();
format.setChannelCount(2);
auto audio_output = make<QAudioSink>(device_info, format);
return AudioDevice { move(audio_output) };
}
AudioDevice(AudioDevice&&) = default;
AudioDevice& operator=(AudioDevice&& device)
{
if (audio_output) {
audio_output->stop();
io_device = nullptr;
}
swap(audio_output, device.audio_output);
swap(io_device, device.io_device);
return *this;
}
~AudioDevice()
{
if (audio_output)
audio_output->stop();
}
OwnPtr<QAudioSink> audio_output;
QIODevice* io_device { nullptr };
private:
explicit AudioDevice(NonnullOwnPtr<QAudioSink> output)
: audio_output(move(output))
{
io_device = audio_output->start();
}
};
void run() override
{
auto devices = make<QMediaDevices>();
auto const& device_info = devices->defaultAudioOutput();
auto audio_device = AudioDevice::create();
auto format = device_info.preferredFormat();
format.setChannelCount(2);
auto audio_output = make<QAudioSink>(device_info, format);
auto* io_device = audio_output->start();
connect(devices, &QMediaDevices::audioOutputsChanged, this, [this]() {
queue_task({ AudioTask::Type::RecreateAudioDevice }).release_value_but_fixme_should_propagate_errors();
});
auto paused = Paused::Yes;
while (true) {
auto& audio_output = audio_device.audio_output;
auto* io_device = audio_device.io_device;
if (auto result = m_task_queue.dequeue(); result.is_error()) {
VERIFY(result.error() == AudioTaskQueue::QueueStatus::Empty);
} else {
@@ -136,6 +181,10 @@ private:
VERIFY(task.data.has_value());
audio_output->setVolume(*task.data);
break;
case AudioTask::Type::RecreateAudioDevice:
audio_device = AudioDevice::create();
continue;
}
}