static void DSOUND_ReleaseDevice(DirectSoundDevice *device) { if(device->client){ IAudioClient_Release(device->client); device->client = NULL; } if(device->render){ IAudioRenderClient_Release(device->render); device->render = NULL; } if(device->volume){ IAudioStreamVolume_Release(device->volume); device->volume = NULL; } if (device->pad) { device->playpos += device->pad; device->playpos %= device->buflen; device->pad = 0; } }
HRESULT DSOUND_ReopenDevice(DirectSoundDevice *device, BOOL forcewave) { UINT prebuf_frames; REFERENCE_TIME prebuf_rt; HRESULT hres; TRACE("(%p, %d)\n", device, forcewave); if(device->client){ IAudioClient_Release(device->client); device->client = NULL; } if(device->render){ IAudioRenderClient_Release(device->render); device->render = NULL; } if(device->clock){ IAudioClock_Release(device->clock); device->clock = NULL; } if(device->volume){ IAudioStreamVolume_Release(device->volume); device->volume = NULL; } hres = IMMDevice_Activate(device->mmdevice, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, (void **)&device->client); if(FAILED(hres)){ WARN("Activate failed: %08x\n", hres); return hres; } prebuf_frames = device->prebuf * DSOUND_fraglen(device->pwfx->nSamplesPerSec, device->pwfx->nBlockAlign) / device->pwfx->nBlockAlign; prebuf_rt = (10000000 * (UINT64)prebuf_frames) / device->pwfx->nSamplesPerSec; hres = IAudioClient_Initialize(device->client, AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_NOPERSIST, prebuf_rt, 0, device->pwfx, NULL); if(FAILED(hres)){ IAudioClient_Release(device->client); device->client = NULL; WARN("Initialize failed: %08x\n", hres); return hres; } hres = IAudioClient_GetService(device->client, &IID_IAudioRenderClient, (void**)&device->render); if(FAILED(hres)){ IAudioClient_Release(device->client); device->client = NULL; WARN("GetService failed: %08x\n", hres); return hres; } hres = IAudioClient_GetService(device->client, &IID_IAudioClock, (void**)&device->clock); if(FAILED(hres)){ IAudioClient_Release(device->client); IAudioRenderClient_Release(device->render); device->client = NULL; device->render = NULL; WARN("GetService failed: %08x\n", hres); return hres; } hres = IAudioClient_GetService(device->client, &IID_IAudioStreamVolume, (void**)&device->volume); if(FAILED(hres)){ IAudioClient_Release(device->client); IAudioRenderClient_Release(device->render); IAudioClock_Release(device->clock); device->client = NULL; device->render = NULL; device->clock = NULL; WARN("GetService failed: %08x\n", hres); return hres; } return S_OK; }
static void test_streamvolume(void) { IAudioClient *ac; IAudioStreamVolume *asv; WAVEFORMATEX *fmt; UINT32 chans, i; HRESULT hr; float vol, *vols; hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, (void**)&ac); ok(hr == S_OK, "Activation failed with %08x\n", hr); if(hr != S_OK) return; hr = IAudioClient_GetMixFormat(ac, &fmt); ok(hr == S_OK, "GetMixFormat failed: %08x\n", hr); hr = IAudioClient_Initialize(ac, AUDCLNT_SHAREMODE_SHARED, 0, 5000000, 0, fmt, NULL); ok(hr == S_OK, "Initialize failed: %08x\n", hr); hr = IAudioClient_GetService(ac, &IID_IAudioStreamVolume, (void**)&asv); ok(hr == S_OK, "GetService failed: %08x\n", hr); hr = IAudioStreamVolume_GetChannelCount(asv, NULL); ok(hr == E_POINTER, "GetChannelCount gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_GetChannelCount(asv, &chans); ok(hr == S_OK, "GetChannelCount failed: %08x\n", hr); ok(chans == fmt->nChannels, "GetChannelCount gave wrong number of channels: %d\n", chans); hr = IAudioStreamVolume_GetChannelVolume(asv, fmt->nChannels, NULL); ok(hr == E_POINTER, "GetChannelCount gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_GetChannelVolume(asv, fmt->nChannels, &vol); ok(hr == E_INVALIDARG, "GetChannelCount gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_GetChannelVolume(asv, 0, NULL); ok(hr == E_POINTER, "GetChannelCount gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_GetChannelVolume(asv, 0, &vol); ok(hr == S_OK, "GetChannelCount failed: %08x\n", hr); ok(vol == 1.f, "Channel volume was not 1: %f\n", vol); hr = IAudioStreamVolume_SetChannelVolume(asv, fmt->nChannels, -1.f); ok(hr == E_INVALIDARG, "SetChannelVolume gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_SetChannelVolume(asv, 0, -1.f); ok(hr == E_INVALIDARG, "SetChannelVolume gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_SetChannelVolume(asv, 0, 2.f); ok(hr == E_INVALIDARG, "SetChannelVolume gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_SetChannelVolume(asv, 0, 0.2f); ok(hr == S_OK, "SetChannelVolume failed: %08x\n", hr); hr = IAudioStreamVolume_GetChannelVolume(asv, 0, &vol); ok(hr == S_OK, "GetChannelCount failed: %08x\n", hr); ok(fabsf(vol - 0.2f) < 0.05f, "Channel volume wasn't 0.2: %f\n", vol); hr = IAudioStreamVolume_GetAllVolumes(asv, 0, NULL); ok(hr == E_POINTER, "GetAllVolumes gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_GetAllVolumes(asv, fmt->nChannels, NULL); ok(hr == E_POINTER, "GetAllVolumes gave wrong error: %08x\n", hr); vols = HeapAlloc(GetProcessHeap(), 0, fmt->nChannels * sizeof(float)); ok(vols != NULL, "HeapAlloc failed\n"); hr = IAudioStreamVolume_GetAllVolumes(asv, fmt->nChannels - 1, vols); ok(hr == E_INVALIDARG, "GetAllVolumes gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_GetAllVolumes(asv, fmt->nChannels, vols); ok(hr == S_OK, "GetAllVolumes failed: %08x\n", hr); ok(fabsf(vols[0] - 0.2f) < 0.05f, "Channel 0 volume wasn't 0.2: %f\n", vol); for(i = 1; i < fmt->nChannels; ++i) ok(vols[i] == 1.f, "Channel %d volume is not 1: %f\n", i, vols[i]); hr = IAudioStreamVolume_SetAllVolumes(asv, 0, NULL); ok(hr == E_POINTER, "SetAllVolumes gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_SetAllVolumes(asv, fmt->nChannels, NULL); ok(hr == E_POINTER, "SetAllVolumes gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_SetAllVolumes(asv, fmt->nChannels - 1, vols); ok(hr == E_INVALIDARG, "SetAllVolumes gave wrong error: %08x\n", hr); hr = IAudioStreamVolume_SetAllVolumes(asv, fmt->nChannels, vols); ok(hr == S_OK, "SetAllVolumes failed: %08x\n", hr); HeapFree(GetProcessHeap(), 0, vols); IAudioStreamVolume_Release(asv); IAudioClient_Release(ac); CoTaskMemFree(fmt); }
static void test_references(void) { IAudioClient *ac; IAudioRenderClient *rc; ISimpleAudioVolume *sav; IAudioStreamVolume *asv; IAudioClock *acl; WAVEFORMATEX *pwfx; HRESULT hr; ULONG ref; /* IAudioRenderClient */ hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, (void**)&ac); ok(hr == S_OK, "Activation failed with %08x\n", hr); if(hr != S_OK) return; hr = IAudioClient_GetMixFormat(ac, &pwfx); ok(hr == S_OK, "GetMixFormat failed: %08x\n", hr); if(hr != S_OK) return; hr = IAudioClient_Initialize(ac, AUDCLNT_SHAREMODE_SHARED, 0, 5000000, 0, pwfx, NULL); ok(hr == S_OK, "Initialize failed: %08x\n", hr); CoTaskMemFree(pwfx); hr = IAudioClient_GetService(ac, &IID_IAudioRenderClient, (void**)&rc); ok(hr == S_OK, "GetService failed: %08x\n", hr); IAudioRenderClient_AddRef(rc); ref = IAudioRenderClient_Release(rc); ok(ref != 0, "RenderClient_Release gave wrong refcount: %u\n", ref); ref = IAudioClient_Release(ac); ok(ref != 0, "Client_Release gave wrong refcount: %u\n", ref); ref = IAudioRenderClient_Release(rc); ok(ref == 0, "RenderClient_Release gave wrong refcount: %u\n", ref); /* ISimpleAudioVolume */ hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, (void**)&ac); ok(hr == S_OK, "Activation failed with %08x\n", hr); if(hr != S_OK) return; hr = IAudioClient_GetMixFormat(ac, &pwfx); ok(hr == S_OK, "GetMixFormat failed: %08x\n", hr); hr = IAudioClient_Initialize(ac, AUDCLNT_SHAREMODE_SHARED, 0, 5000000, 0, pwfx, NULL); ok(hr == S_OK, "Initialize failed: %08x\n", hr); CoTaskMemFree(pwfx); hr = IAudioClient_GetService(ac, &IID_ISimpleAudioVolume, (void**)&sav); ok(hr == S_OK, "GetService failed: %08x\n", hr); ISimpleAudioVolume_AddRef(sav); ref = ISimpleAudioVolume_Release(sav); ok(ref != 0, "SimpleAudioVolume_Release gave wrong refcount: %u\n", ref); ref = IAudioClient_Release(ac); ok(ref != 0, "Client_Release gave wrong refcount: %u\n", ref); ref = ISimpleAudioVolume_Release(sav); ok(ref == 0, "SimpleAudioVolume_Release gave wrong refcount: %u\n", ref); /* IAudioClock */ hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, (void**)&ac); ok(hr == S_OK, "Activation failed with %08x\n", hr); if(hr != S_OK) return; hr = IAudioClient_GetMixFormat(ac, &pwfx); ok(hr == S_OK, "GetMixFormat failed: %08x\n", hr); hr = IAudioClient_Initialize(ac, AUDCLNT_SHAREMODE_SHARED, 0, 5000000, 0, pwfx, NULL); ok(hr == S_OK, "Initialize failed: %08x\n", hr); CoTaskMemFree(pwfx); hr = IAudioClient_GetService(ac, &IID_IAudioClock, (void**)&acl); ok(hr == S_OK, "GetService failed: %08x\n", hr); IAudioClock_AddRef(acl); ref = IAudioClock_Release(acl); ok(ref != 0, "AudioClock_Release gave wrong refcount: %u\n", ref); ref = IAudioClient_Release(ac); ok(ref != 0, "Client_Release gave wrong refcount: %u\n", ref); ref = IAudioClock_Release(acl); ok(ref == 0, "AudioClock_Release gave wrong refcount: %u\n", ref); /* IAudioStreamVolume */ hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, (void**)&ac); ok(hr == S_OK, "Activation failed with %08x\n", hr); if(hr != S_OK) return; hr = IAudioClient_GetMixFormat(ac, &pwfx); ok(hr == S_OK, "GetMixFormat failed: %08x\n", hr); hr = IAudioClient_Initialize(ac, AUDCLNT_SHAREMODE_SHARED, 0, 5000000, 0, pwfx, NULL); ok(hr == S_OK, "Initialize failed: %08x\n", hr); hr = IAudioClient_GetService(ac, &IID_IAudioStreamVolume, (void**)&asv); ok(hr == S_OK, "GetService failed: %08x\n", hr); IAudioStreamVolume_AddRef(asv); ref = IAudioStreamVolume_Release(asv); ok(ref != 0, "AudioStreamVolume_Release gave wrong refcount: %u\n", ref); ref = IAudioClient_Release(ac); ok(ref != 0, "Client_Release gave wrong refcount: %u\n", ref); ref = IAudioStreamVolume_Release(asv); ok(ref == 0, "AudioStreamVolume_Release gave wrong refcount: %u\n", ref); }
static void test_volume_dependence(void) { IAudioClient *ac, *ac2; ISimpleAudioVolume *sav; IChannelAudioVolume *cav; IAudioStreamVolume *asv; WAVEFORMATEX *fmt; HRESULT hr; float vol; GUID session; UINT32 nch; hr = CoCreateGuid(&session); ok(hr == S_OK, "CoCreateGuid failed: %08x\n", hr); hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, (void**)&ac); ok(hr == S_OK, "Activation failed with %08x\n", hr); hr = IAudioClient_GetMixFormat(ac, &fmt); ok(hr == S_OK, "GetMixFormat failed: %08x\n", hr); hr = IAudioClient_Initialize(ac, AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_NOPERSIST, 5000000, 0, fmt, &session); ok(hr == S_OK, "Initialize failed: %08x\n", hr); hr = IAudioClient_GetService(ac, &IID_ISimpleAudioVolume, (void**)&sav); ok(hr == S_OK, "GetService (SimpleAudioVolume) failed: %08x\n", hr); hr = IAudioClient_GetService(ac, &IID_IChannelAudioVolume, (void**)&cav); ok(hr == S_OK, "GetService (ChannelAudioVolme) failed: %08x\n", hr); hr = IAudioClient_GetService(ac, &IID_IAudioStreamVolume, (void**)&asv); ok(hr == S_OK, "GetService (AudioStreamVolume) failed: %08x\n", hr); hr = IAudioStreamVolume_SetChannelVolume(asv, 0, 0.2f); ok(hr == S_OK, "ASV_SetChannelVolume failed: %08x\n", hr); hr = IChannelAudioVolume_SetChannelVolume(cav, 0, 0.4f, NULL); ok(hr == S_OK, "CAV_SetChannelVolume failed: %08x\n", hr); hr = ISimpleAudioVolume_SetMasterVolume(sav, 0.6f, NULL); ok(hr == S_OK, "SAV_SetMasterVolume failed: %08x\n", hr); hr = IAudioStreamVolume_GetChannelVolume(asv, 0, &vol); ok(hr == S_OK, "ASV_GetChannelVolume failed: %08x\n", hr); ok(fabsf(vol - 0.2) < 0.05f, "ASV_GetChannelVolume gave wrong volume: %f\n", vol); hr = IChannelAudioVolume_GetChannelVolume(cav, 0, &vol); ok(hr == S_OK, "CAV_GetChannelVolume failed: %08x\n", hr); ok(fabsf(vol - 0.4) < 0.05f, "CAV_GetChannelVolume gave wrong volume: %f\n", vol); hr = ISimpleAudioVolume_GetMasterVolume(sav, &vol); ok(hr == S_OK, "SAV_GetMasterVolume failed: %08x\n", hr); ok(fabsf(vol - 0.6) < 0.05f, "SAV_GetMasterVolume gave wrong volume: %f\n", vol); hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, (void**)&ac2); if(SUCCEEDED(hr)){ IChannelAudioVolume *cav2; IAudioStreamVolume *asv2; hr = IAudioClient_Initialize(ac2, AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_NOPERSIST, 5000000, 0, fmt, &session); ok(hr == S_OK, "Initialize failed: %08x\n", hr); hr = IAudioClient_GetService(ac2, &IID_IChannelAudioVolume, (void**)&cav2); ok(hr == S_OK, "GetService failed: %08x\n", hr); hr = IAudioClient_GetService(ac2, &IID_IAudioStreamVolume, (void**)&asv2); ok(hr == S_OK, "GetService failed: %08x\n", hr); hr = IChannelAudioVolume_GetChannelVolume(cav2, 0, &vol); ok(hr == S_OK, "CAV_GetChannelVolume failed: %08x\n", hr); ok(fabsf(vol - 0.4) < 0.05f, "CAV_GetChannelVolume gave wrong volume: %f\n", vol); hr = IAudioStreamVolume_GetChannelVolume(asv2, 0, &vol); ok(hr == S_OK, "ASV_GetChannelVolume failed: %08x\n", hr); ok(vol == 1.f, "ASV_GetChannelVolume gave wrong volume: %f\n", vol); hr = IChannelAudioVolume_GetChannelCount(cav2, &nch); ok(hr == S_OK, "GetChannelCount failed: %08x\n", hr); ok(nch == fmt->nChannels, "Got wrong channel count, expected %u: %u\n", fmt->nChannels, nch); hr = IAudioStreamVolume_GetChannelCount(asv2, &nch); ok(hr == S_OK, "GetChannelCount failed: %08x\n", hr); ok(nch == fmt->nChannels, "Got wrong channel count, expected %u: %u\n", fmt->nChannels, nch); IAudioStreamVolume_Release(asv2); IChannelAudioVolume_Release(cav2); IAudioClient_Release(ac2); }else skip("Unable to open the same device twice. Skipping session volume control tests\n"); hr = IChannelAudioVolume_SetChannelVolume(cav, 0, 1.f, NULL); ok(hr == S_OK, "CAV_SetChannelVolume failed: %08x\n", hr); hr = ISimpleAudioVolume_SetMasterVolume(sav, 1.f, NULL); ok(hr == S_OK, "SAV_SetMasterVolume failed: %08x\n", hr); CoTaskMemFree(fmt); ISimpleAudioVolume_Release(sav); IChannelAudioVolume_Release(cav); IAudioStreamVolume_Release(asv); IAudioClient_Release(ac); }
HRESULT DSOUND_ReopenDevice(DirectSoundDevice *device, BOOL forcewave) { HRESULT hres; REFERENCE_TIME period; UINT32 frames; DWORD period_ms; IAudioClient *client = NULL; IAudioRenderClient *render = NULL; IAudioStreamVolume *volume = NULL; DWORD fraglen; WAVEFORMATEX *wfx = NULL; DWORD oldspeakerconfig = device->speaker_config; TRACE("(%p, %d)\n", device, forcewave); hres = IMMDevice_Activate(device->mmdevice, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, (void **)&client); if(FAILED(hres)){ WARN("Activate failed: %08x\n", hres); return hres; } hres = DSOUND_WaveFormat(device, client, forcewave, &wfx); if (FAILED(hres)) { IAudioClient_Release(client); return hres; } hres = IAudioClient_Initialize(client, AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_NOPERSIST | AUDCLNT_STREAMFLAGS_EVENTCALLBACK, 800000, 0, wfx, NULL); if(FAILED(hres)){ IAudioClient_Release(client); ERR("Initialize failed: %08x\n", hres); return hres; } IAudioClient_SetEventHandle(client, device->sleepev); hres = IAudioClient_GetService(client, &IID_IAudioRenderClient, (void**)&render); if(FAILED(hres)) goto err_service; hres = IAudioClient_GetService(client, &IID_IAudioStreamVolume, (void**)&volume); if(FAILED(hres)) goto err_service; /* Now kick off the timer so the event fires periodically */ hres = IAudioClient_Start(client); if (FAILED(hres)) { WARN("Start failed with %08x\n", hres); goto err; } hres = IAudioClient_GetStreamLatency(client, &period); if (FAILED(hres)) { WARN("GetStreamLatency failed with %08x\n", hres); goto err; } hres = IAudioClient_GetBufferSize(client, &frames); if (FAILED(hres)) { WARN("GetBufferSize failed with %08x\n", hres); goto err; } period_ms = (period + 9999) / 10000; fraglen = MulDiv(wfx->nSamplesPerSec, period, 10000000) * wfx->nBlockAlign; TRACE("period %u ms fraglen %u buflen %u\n", period_ms, fraglen, frames * wfx->nBlockAlign); hres = DSOUND_PrimaryOpen(device, wfx, frames, forcewave); if(FAILED(hres)) goto err; DSOUND_ReleaseDevice(device); device->client = client; device->render = render; device->volume = volume; device->fraglen = fraglen; device->aclen = frames * wfx->nBlockAlign; if (period_ms < 3) device->sleeptime = 5; else device->sleeptime = period_ms * 5 / 2; return S_OK; err_service: WARN("GetService failed: %08x\n", hres); err: device->speaker_config = oldspeakerconfig; DSOUND_ParseSpeakerConfig(device); if (volume) IAudioStreamVolume_Release(volume); if (render) IAudioRenderClient_Release(render); IAudioClient_Release(client); HeapFree(GetProcessHeap(), 0, wfx); return hres; }
HRESULT DSOUND_ReopenDevice(DirectSoundDevice *device, BOOL forcewave) { UINT prebuf_frames; REFERENCE_TIME prebuf_rt; WAVEFORMATEX *wfx = NULL; HRESULT hres; REFERENCE_TIME period; DWORD period_ms; TRACE("(%p, %d)\n", device, forcewave); if(device->client){ IAudioClient_Release(device->client); device->client = NULL; } if(device->render){ IAudioRenderClient_Release(device->render); device->render = NULL; } if(device->clock){ IAudioClock_Release(device->clock); device->clock = NULL; } if(device->volume){ IAudioStreamVolume_Release(device->volume); device->volume = NULL; } hres = IMMDevice_Activate(device->mmdevice, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, (void **)&device->client); if(FAILED(hres)) { WARN("Activate failed: %08x\n", hres); return hres; } hres = DSOUND_WaveFormat(device, device->client, forcewave, &wfx); if (FAILED(hres)) { IAudioClient_Release(device->client); device->client = NULL; return hres; } HeapFree(GetProcessHeap(), 0, device->pwfx); device->pwfx = wfx; prebuf_frames = device->prebuf * DSOUND_fraglen(device) / device->pwfx->nBlockAlign; prebuf_rt = (10000000 * (UINT64)prebuf_frames) / device->pwfx->nSamplesPerSec; hres = IAudioClient_Initialize(device->client, AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_NOPERSIST | AUDCLNT_STREAMFLAGS_EVENTCALLBACK, prebuf_rt, 0, device->pwfx, NULL); if(FAILED(hres)){ IAudioClient_Release(device->client); device->client = NULL; WARN("Initialize failed: %08x\n", hres); return hres; } IAudioClient_SetEventHandle(device->client, device->sleepev); hres = IAudioClient_GetService(device->client, &IID_IAudioRenderClient, (void**)&device->render); if(FAILED(hres)){ IAudioClient_Release(device->client); device->client = NULL; WARN("GetService failed: %08x\n", hres); return hres; } hres = IAudioClient_GetService(device->client, &IID_IAudioClock, (void**)&device->clock); if(FAILED(hres)){ IAudioClient_Release(device->client); IAudioRenderClient_Release(device->render); device->client = NULL; device->render = NULL; WARN("GetService failed: %08x\n", hres); return hres; } hres = IAudioClient_GetService(device->client, &IID_IAudioStreamVolume, (void**)&device->volume); if(FAILED(hres)){ IAudioClient_Release(device->client); IAudioRenderClient_Release(device->render); IAudioClock_Release(device->clock); device->client = NULL; device->render = NULL; device->clock = NULL; WARN("GetService failed: %08x\n", hres); return hres; } /* Now kick off the timer so the event fires periodically */ hres = IAudioClient_Start(device->client); if (FAILED(hres)) WARN("starting failed with %08x\n", hres); hres = IAudioClient_GetStreamLatency(device->client, &period); if (FAILED(hres)) { WARN("GetStreamLatency failed with %08x\n", hres); period_ms = 10; } else period_ms = (period + 9999) / 10000; TRACE("period %u ms fraglen %u prebuf %u\n", period_ms, device->fraglen, device->prebuf); if (period_ms < 3) device->sleeptime = 5; else device->sleeptime = period_ms * 5 / 2; return S_OK; }