Throwing runtime error in the compressionWorker is too strict

[tomdeblauwe]

Hello,

While encoding, I sometimes get a timeout in the compressionWorker but actually, it's not that anything is broken, it's just that my system is very busy at startup. So throwing a runtime error is too much because I have no option to disable it, or catch it: a try catch around the encode function won't do it because it is in another thread(when using compression)). Can you change that to a cerr print maybe?

Thanks for the awesome lib!
Best regards,

[facontidavide]

PR welcome :)

[tomdeblauwe]

Ok :) See #52