Martin Steghöfer authored Oct 28, 2014 and Thomas Daede committed Jan 21, 2018

Bug-Debian: https://bugs.debian.org/307325
Forwarded: https://trac.xiph.org/ticket/1956#comment:3

When arriving at the end of the input file, the main thread waits for
the output thread to finish up the current buffer. If a cancellation
signal arrives at that stage, this signal of an empty buffer never
arrives because the output thread bails out before actually emptying
the buffer.

Fix:
1.) Make sure the output thread wakes up the main thread when bailing
out, so the main thread can go on, too.
2.) When the main thread wakes up while waiting for an empty buffer,
make sure it understands the situation (that there won't be an empty
buffer because the replay has been cancelled) and doesn't go back to
sleep.