[FFmpeg-user] Zeranoe Windows builds spiking CPU to 100% randomly

Jan Ehrhardt phpdev at ehrhardt.nl
Tue Jul 24 22:49:55 CEST 2012

Roger Pack in gmane.comp.video.ffmpeg.user (Mon, 23 Jul 2012 22:50:50
>Ok I pinged them:
>They apparently committed an "r5250" which might help fix the problem,
>would it be possible to try it?
>Also a build that defines WINPTHREAD_DBG  might apparently be useful.

http://x32.elijst.nl/ffdebug2.tar.bz2 contains versions with

It wasn't simply uncommenting #define WINPTHREAD_DBG 1 in in pthread.h.
At the very last end of Zeranoe's script compilation failed, because of
double declarations of void mutex_print() in mutex.h and mutex.c and
more of those errors. I had to debug to get it running...

Also in some functions print_state was declared as 0, apparently
prohibiting the desired output. I have changed that everywhere to
print_state = 1.


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