Stop visualization processing when the host window is completely
occluded, thus reducing background CPU usage levels significantly
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Now the API makes both PCM and FFT data optional, and will do nothing if
neither are requested. Also, it now supports a latency offset in seconds
with floating point precision. The two built-in visualizations currently
request zero larency. Increasing the latency asks for even older samples
while specifying a negative count requests samples from the "future"
relative to what the listener is hearing.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
The SceneKit visualizer now has a crash check, which will trigger if an
exception is thrown by the app.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Christopher Snowhill