[MPlayer-users] crash in filter_video with lavdopts=threads=2

[Reimar Döffinger]

On Mon, Jul 06, 2015 at 03:13:39PM +0200, William Brana wrote:
> On 7/6/15, William Brana <wbrana at gmail.com> wrote:
> > It seems crash is related to option -vo gl:yuv=4
> > -vo gl doesn't crash.
> >
> With -vo gl, it is still crashing with valgrind, but doesn't crash
> without valgrind. There is buffer corruption at start of playback. It
> seems thread synchronization is broken.

Try with -noslices.
That feature has been broken in FFmpeg semi-frequently, it is
not unlikely multithreading breaks it even worse than normal.
It should only be files with older codecs that are affected then,
as slice rendering was only ever implemented for them (and on
modern machines the speed advantages of it are probably negligible).