[mythtv-users] HD-PVR video jittery only on HD channels

Raymond Wagner raymond at wagnerrp.com
Sat Jun 20 18:54:30 UTC 2009

John Nissley wrote:
> When I record an HD channel the video gets choppy (Pauses a lot).  I 
> wondered if this was just my hardware so I moved the created mpeg from 
> my backend to my windows box and tried to play the video with VLC and 
> had the same problem with jittery video.  My CPU is not maxed out on 
> my windows machine.
HD recordings on a HDPVR can be up to of 13.5mbps, but the real kicker 
is that they are single sliced.  That means you will only be able to use 
one core to decode it (until the ffmpeg-mt stuff comes through), and you 
will need a fairly beefy processor to do that bitrate single threaded.  
Are you sure your CPU had spare idle time, and did not have one core 
maxed out?

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