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

Roger Pack rogerdpack2 at gmail.com
Thu Jul 26 15:25:41 CEST 2012

> I tested this using internal mp4, as well as libvpx. In both cases the
> pipeline completed without a glitch on a sample of 1400 videos.

This sounds vaguely familiar...f it fails with libx264 but works well
with the others, you may be running up against a threading issue we're
trying to resolve in the zeranoe builds.
Could you try with this build and see if it works?

>> Also gdb backtraces of stuck threads?
> Correct me if I'm wrong, but I won't be able to get it in Windows, will I?

Believe it or not the mingw people have ported gdb to windows, and it
works quite well.
It can even attach to remote processes.
You'll want to be running a debug version of ffmpeg, though even a non
debug version of it might show some interesting material.

basically start gdb, then
(gdb) attach <pidd>
(gdb) thread apply all bt

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