Is there a way with WASAPI to determine if two devices (an input and an output device) are both synced to the same underlying clock source?
In all the examples I've seen input and output devices are handled separately - typically a different thread or event handle is used for each and I've not seen any discussion about how to keep two devices in sync (or how to handle the devices going out of sync).
For my app I basically need to do real-time input to output processing where each audio cycle I get a certain number of incoming samples and I send the same number of output samples. ie: I need one triggering event for the audio cycle that will be correct for both devices - not separate events for each device.
I also need to understand how this works in both exclusive and shared modes. For exclusive I guess this will come down to finding if devices have a common clock source. For shared mode some information on what Windows guarantees about synchronization of devices would be great.
