diff options
Diffstat (limited to 'drivers/wasapi/audio_driver_wasapi.cpp')
| -rw-r--r-- | drivers/wasapi/audio_driver_wasapi.cpp | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/drivers/wasapi/audio_driver_wasapi.cpp b/drivers/wasapi/audio_driver_wasapi.cpp index 0b5cfceadc..403feb149e 100644 --- a/drivers/wasapi/audio_driver_wasapi.cpp +++ b/drivers/wasapi/audio_driver_wasapi.cpp @@ -121,6 +121,12 @@ const IID IID_IAudioCaptureClient = __uuidof(IAudioCaptureClient); static bool default_render_device_changed = false; static bool default_capture_device_changed = false; +// Silence warning due to a COM API weirdness (GH-35194). +#if defined(__GNUC__) && !defined(__clang__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wnon-virtual-dtor" +#endif + class CMMNotificationClient : public IMMNotificationClient { LONG _cRef = 1; IMMDeviceEnumerator *_pEnumerator = nullptr; @@ -162,7 +168,7 @@ public: HRESULT STDMETHODCALLTYPE OnDeviceAdded(LPCWSTR pwstrDeviceId) { return S_OK; - }; + } HRESULT STDMETHODCALLTYPE OnDeviceRemoved(LPCWSTR pwstrDeviceId) { return S_OK; @@ -189,6 +195,10 @@ public: } }; +#if defined(__GNUC__) && !defined(__clang__) +#pragma GCC diagnostic pop +#endif + static CMMNotificationClient notif_client; Error AudioDriverWASAPI::audio_device_init(AudioDeviceWASAPI *p_device, bool p_capture, bool reinit) { @@ -274,7 +284,7 @@ Error AudioDriverWASAPI::audio_device_init(AudioDeviceWASAPI *p_device, bool p_c ERR_PRINT("WASAPI: RegisterEndpointNotificationCallback error"); } - bool using_audio_client_3 = !p_capture; // IID_IAudioClient3 is only used for adjustable output latency (not input) + using_audio_client_3 = !p_capture; // IID_IAudioClient3 is only used for adjustable output latency (not input) if (using_audio_client_3) { hr = device->Activate(IID_IAudioClient3, CLSCTX_ALL, nullptr, (void **)&p_device->audio_client); if (hr != S_OK) { @@ -301,7 +311,7 @@ Error AudioDriverWASAPI::audio_device_init(AudioDeviceWASAPI *p_device, bool p_c } if (using_audio_client_3) { - AudioClientProperties audioProps; + AudioClientProperties audioProps{}; audioProps.cbSize = sizeof(AudioClientProperties); audioProps.bIsOffload = FALSE; audioProps.eCategory = AudioCategory_GameEffects; @@ -373,11 +383,21 @@ Error AudioDriverWASAPI::audio_device_init(AudioDeviceWASAPI *p_device, bool p_c hr = p_device->audio_client->Initialize(AUDCLNT_SHAREMODE_SHARED, streamflags, p_capture ? REFTIMES_PER_SEC : 0, 0, pwfex, nullptr); ERR_FAIL_COND_V_MSG(hr != S_OK, ERR_CANT_OPEN, "WASAPI: Initialize failed with error 0x" + String::num_uint64(hr, 16) + "."); UINT32 max_frames; - HRESULT hr = p_device->audio_client->GetBufferSize(&max_frames); + hr = p_device->audio_client->GetBufferSize(&max_frames); ERR_FAIL_COND_V(hr != S_OK, ERR_CANT_OPEN); // Due to WASAPI Shared Mode we have no control of the buffer size - buffer_frames = max_frames; + if (!p_capture) { + buffer_frames = max_frames; + + int64_t latency = 0; + audio_output.audio_client->GetStreamLatency(&latency); + // WASAPI REFERENCE_TIME units are 100 nanoseconds per unit + // https://docs.microsoft.com/en-us/windows/win32/directshow/reference-time + // Convert REFTIME to seconds as godot uses for latency + real_latency = (float)latency / (float)REFTIMES_PER_SEC; + } + } else { IAudioClient3 *device_audio_client_3 = (IAudioClient3 *)p_device->audio_client; @@ -411,6 +431,11 @@ Error AudioDriverWASAPI::audio_device_init(AudioDeviceWASAPI *p_device, bool p_c hr = device_audio_client_3->InitializeSharedAudioStream(0, period_frames, pwfex, nullptr); ERR_FAIL_COND_V_MSG(hr != S_OK, ERR_CANT_OPEN, "WASAPI: InitializeSharedAudioStream failed with error 0x" + String::num_uint64(hr, 16) + "."); + uint32_t output_latency_in_frames; + WAVEFORMATEX *current_pwfex; + device_audio_client_3->GetCurrentSharedModeEnginePeriod(¤t_pwfex, &output_latency_in_frames); + real_latency = (float)output_latency_in_frames / (float)current_pwfex->nSamplesPerSec; + CoTaskMemFree(current_pwfex); } if (p_capture) { @@ -499,7 +524,7 @@ Error AudioDriverWASAPI::finish_capture_device() { Error AudioDriverWASAPI::init() { mix_rate = GLOBAL_GET("audio/driver/mix_rate"); - target_latency_ms = GLOBAL_GET("audio/output_latency"); + target_latency_ms = GLOBAL_GET("audio/driver/output_latency"); Error err = init_render_device(); if (err != OK) { @@ -518,6 +543,10 @@ int AudioDriverWASAPI::get_mix_rate() const { return mix_rate; } +float AudioDriverWASAPI::get_latency() { + return real_latency; +} + AudioDriver::SpeakerMode AudioDriverWASAPI::get_speaker_mode() const { return get_speaker_mode_by_total_channels(channels); } |