http://bugs.winehq.org/show_bug.cgi?id=14717
--- Comment #268 from Alexander E. Patrakov patrakov@gmail.com 2012-01-05 03:34:05 CST --- So it still converts incomplete buffers (needed to convert 512 samples, converted 511) and from time to time even wants to convert 4 samples at a time. This even happens if I force the total_frames variable to an insanely high number like 4096 - so the fix proposed by me was in fact ineffective.
Still, I wonder why the bug affects only the left channel.