Fix uninitialised member

Remove vestigial includes from earlier debugging

Ensure the loop thread knows it should give other threads a chance, when awoken explicitly

Avoid compiler warnings (the semicolons were spurious)

A little more logging, especially when in debug mode

Minor log improvement

Move JACK to end of listing

Minor debug output

Don't blow up if the application channel count is zero; instead wait for the system to set one. Also add log callbacks

Convert Makefiles to format similar to other bqlibs

Fix compiler warning

Add references to other bqlibs, etc

Don't pass the target rate to the upstream source (the whole point is to resample)

Print a note

Respond properly to changes of channel count. Previously the resampler wrapper had to be reconstructed in e.g. the case where one number of channels was requested on opening the device, but a different number was actually obtained.

Avoid a hard-to-understand compiler error in case where no audio system is defined

It turns out pa_mainloop_prepare was treating the msec timeout as usec in PulseAudio versions before 13.0, so the value actually passed to ppoll() was very short indeed. This is fixed in 13.0 and the result was to make it quite hard for the suspend/resume thread to acquire the loop mutex, which was almost always contended. Fix this by adding a couple of yields, and lowering the timeout drastically, since it obviously worked fine with a much lower effective value anyway.

Use override

Report failure to resample, rather than allow the exception to be propagated - there is no useful way for anyone else to catch it from here

Log some sample-rate setup info