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output/wasapi: make enumerator a local variable

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This commit is contained in:
Max Kellermann 2021-03-10 17:21:26 +01:00
parent 0a97e68aa9
commit 3e93c392d7
1 changed files with 16 additions and 14 deletions
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30
src/output/plugins/wasapi/WasapiOutputPlugin.cxx
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@ -233,7 +233,6 @@ class WasapiOutput final : public AudioOutput {
#endif
std::string device_config;
std::shared_ptr<COMWorker> com_worker;
ComPtr<IMMDeviceEnumerator> enumerator;
ComPtr<IMMDevice> device;
ComPtr<IAudioClient> client;
WAVEFORMATEXTENSIBLE device_format;
@ -293,9 +292,11 @@ private:
bool TryFormatExclusive(const AudioFormat &audio_format);
void FindExclusiveFormatSupported(AudioFormat &audio_format);
void FindSharedFormatSupported(AudioFormat &audio_format);
void EnumerateDevices();
ComPtr<IMMDevice> GetDevice(unsigned int index);
ComPtr<IMMDevice> SearchDevice(std::string_view name);
static void EnumerateDevices(IMMDeviceEnumerator &enumerator);
static ComPtr<IMMDevice> GetDevice(IMMDeviceEnumerator &enumerator,
unsigned index);
static ComPtr<IMMDevice> SearchDevice(IMMDeviceEnumerator &enumerator,
std::string_view name);
};
WasapiOutput &
@ -434,7 +435,6 @@ WasapiOutput::DoDisable() noexcept
assert(!thread);
device.reset();
enumerator.reset();
}
/// run inside COMWorkerThread
@ -695,12 +695,13 @@ WasapiOutput::Cancel() noexcept
void
WasapiOutput::OpenDevice()
{
ComPtr<IMMDeviceEnumerator> enumerator;
enumerator.CoCreateInstance(__uuidof(MMDeviceEnumerator), nullptr,
CLSCTX_INPROC_SERVER);
if (enumerate_devices) {
try {
EnumerateDevices();
EnumerateDevices(*enumerator);
} catch (...) {
LogError(std::current_exception());
}
@ -709,12 +710,12 @@ WasapiOutput::OpenDevice()
if (!device_config.empty()) {
unsigned int id;
if (!SafeSilenceTry([this, &id]() { id = std::stoul(device_config); })) {
device = SearchDevice(device_config);
device = SearchDevice(*enumerator, device_config);
if (!device)
throw FormatRuntimeError("Device '%s' not found",
device_config.c_str());
} else
device = GetDevice(id);
device = GetDevice(*enumerator, id);
} else {
device = GetDefaultAudioEndpoint(*enumerator);
}
@ -915,9 +916,9 @@ WasapiOutput::FindSharedFormatSupported(AudioFormat &audio_format)
/// run inside COMWorkerThread
void
WasapiOutput::EnumerateDevices()
WasapiOutput::EnumerateDevices(IMMDeviceEnumerator &enumerator)
{
const auto device_collection = EnumAudioEndpoints(*enumerator);
const auto device_collection = EnumAudioEndpoints(enumerator);
const UINT count = GetCount(*device_collection);
for (UINT i = 0; i < count; ++i) {
@ -938,17 +939,18 @@ WasapiOutput::EnumerateDevices()
/// run inside COMWorkerThread
ComPtr<IMMDevice>
WasapiOutput::GetDevice(unsigned int index)
WasapiOutput::GetDevice(IMMDeviceEnumerator &enumerator, unsigned index)
{
const auto device_collection = EnumAudioEndpoints(*enumerator);
const auto device_collection = EnumAudioEndpoints(enumerator);
return Item(*device_collection, index);
}
/// run inside COMWorkerThread
ComPtr<IMMDevice>
WasapiOutput::SearchDevice(std::string_view name)
WasapiOutput::SearchDevice(IMMDeviceEnumerator &enumerator,
std::string_view name)
{
const auto device_collection = EnumAudioEndpoints(*enumerator);
const auto device_collection = EnumAudioEndpoints(enumerator);
const UINT count = GetCount(*device_collection);
for (UINT i = 0; i < count; ++i) {