On Tue, 2011-12-06 at 18:20 -0800, Ronald S. Bultje wrote:
> Hi,
> 
> On Dec 6, 2011 6:06 PM, "Uoti Urpala" <[email protected]> wrote:
> > The pthread_cond_broadcast() implementation in w32pthreads.h looks
> > suspicious - it could wake up the same thread multiple times (if it
> > re-enters wait fast enough) instead of waking up all current
> waiters.
> > Maybe that is the actual problem?
> 
> If that's the case grabbing and directly releasing a static lock in
> pthread_mutex_lock, and holding this in pthread_cond_broadcast, should
> fix it.

The commit adding the current libavcodec/w32pthreads.h said "Replace our
incomplete w32threads implementation with x264's pthreads w32threads
wrapper.". However, the code does not match x264's common/win32thread.c,
and the x264 version looks like it does try to handle this correctly.

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