avauddec: address regression with WMA files ..
By outputting lead-in samples that FFmpeg now would like us to ignore, and discarding trailing samples that it would now like us to output.
See #1474 Fixes: #1348 (closed)
By outputting lead-in samples that FFmpeg now would like us to ignore, and discarding trailing samples that it would now like us to output.
See #1474 Fixes: #1348 (closed)