Audio Precision software calls canSampleRate() with NaN

[dechamps]

I was sent a log where "APx500 6.1\AudioPrecision.RealTime.exe" software was used, and one of the first thing it contains is the following:

--- ENTERING CONTEXT: canSampleRate()
Checking for sample rate: -nan(ind)

This looks like a bug in the host application as it seems to call canSampleRate() with a NaN parameter. Fortunately it seems benign as it doesn't prevent anything from working (as far as I can tell). FlexASIO should arguably reject the call immediately instead of attempting to open a PortAudio stream with a NaN sample rate, which could potentially not end well.

[dechamps]

Safeguards were implemented in FlexASIO 1.9.