[ElectricPim]

PS before ffmpeg bump it was perfect.

Can you confirm the actual nightly build?
i.e was #410 perfect and #411 is bad?

Does disabling "sync playback to display" avoid the issue?

I have sync playback to display disabled by default, so IMHO that's not the point.

I hear it at mpeg2 dvb-t mmal, could be between 0410 and 0411, sometimes it's hard to say not that often and not that dominant.
I do hear it at 0411, but somehow it feels less then in 0417.

Will test further.