[mythtv] playback framerate vs screen refresh.
davatar at comcast.net
Tue Feb 17 05:59:23 UTC 2009
I just updated this wiki with a discovery about HDTV playback problems, it's
a livelock situation that I believe anyone will run into when the frame rate
comes up against the vertical refresh.
I think what needs to happen is that the output frames need to get dropped
if it gets too far behind, I don't see any other way to make a generic
solution that works for everyone. Unless the playback timing can come from
the video driver itself??? The modelines seem to change between driver
updates, forget about the dozens or more of available chipsets. Perhaps this
is better suited for the ffmpeg list, but haven't had much time to dig into
how the playback path works. However this is a bigger problem for mythtv
because we will get NTSC/ATSC video that runs into this more often than not,
versus 25fps or other for file players.
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