pContext->onDeviceStart = NULL; /* Not used. Started in onDeviceMainLoop. */
pContext->onDeviceStop = ma_device_stop__wasapi; /* Required to ensure the capture event is signalled when stopping a loopback device while nothing is playing. */
/* DirectSound should use a latency of about 20ms per period for low latency mode. */
if (pDevice->usingDefaultBufferSize) {
if (pConfig->performanceProfile == ma_performance_profile_low_latency) {
periodSizeInMilliseconds = 20;
} else {
periodSizeInMilliseconds = 200;
}
}
/* DirectSound breaks down with tiny buffer sizes (bad glitching and silent output). I am therefore restricting the size of the buffer to a minimum of 20 milliseconds. */
if (periodSizeInMilliseconds < 20) {
periodSizeInMilliseconds = 20;
}
/*
/*
Unfortunately DirectSound uses different APIs and data structures for playback and catpure devices. We need to initialize
Unfortunately DirectSound uses different APIs and data structures for playback and catpure devices. We need to initialize
the capture device first because we'll want to match it's buffer size and period count on the playback side if we're using
the capture device first because we'll want to match it's buffer size and period count on the playback side if we're using
return ma_post_error(pDevice, MA_LOG_LEVEL_ERROR, "[DirectSound] Failed to retrieve the actual format of the capture device's buffer.", ma_result_from_HRESULT(hr));
return ma_post_error(pDevice, MA_LOG_LEVEL_ERROR, "[DirectSound] Failed to retrieve the actual format of the capture device's buffer.", ma_result_from_HRESULT(hr));
return ma_post_error(pDevice, MA_LOG_LEVEL_ERROR, "[DirectSound] Failed to retrieve the actual format of the playback device's primary buffer.", ma_result_from_HRESULT(hr));
return ma_post_error(pDevice, MA_LOG_LEVEL_ERROR, "[DirectSound] Failed to retrieve the actual format of the playback device's primary buffer.", ma_result_from_HRESULT(hr));
