[FFmpeg-user] Encoding x264 hangs in a high turn over pipeline

[Roger Pack]

> For me using one of the older builds sorted the problem out - try this
> (assuming you're using Windows):
> http://ffmpeg.zeranoe.com/builds/win64/static/ffmpeg-20120409-git-6bfb304-win64-static.7z

Interestingly, I did try it out--that one also "hangs" for me.  Were
you using it with -threads 1?  I'll run some more tests and see if I
can figure out which old versions worked well...