[mythtv-users] HD Hockey + SD Hockey
Martin Lynch
martin.lynch at shaw.ca
Mon Oct 29 07:04:22 UTC 2007
On 10/28/07, Daryl <darylbell at shaw.ca> wrote:
> > Hockey is an issue for me as well. Recording SD over cable with PVR 150.
> > Mythbuntu running trunk. I can't find any errors in mythbackend.log while
> > recording or watching. I've been tweaking recording profiles and I think it
> > is looking slightly better now but still almost unwatchable. The only good
> > thing about this is that it doesn't hurt the WAF at all...
>
What bitrate are you using? SD hockey pretty much requires a higher
bitrate than normal recordings. My "Default" profile (SD pvr350) uses
bitrate=3000, maxbitrate=4000. For hockey I use bitrate=6000,
maxbitrate=8000. That has worked great for me.
That solution seems to make sense to me - I think hockey simply
overwhelms the normal settings since there are so many areas of the
screen moving at very high speed. I was watching Casino Royale in HD
last night and noticed the same thing in a shot showing the ocean -
there were tons of small waves all in motion and the system was having
trouble keeping up - it's the only time I've seeen that happen other
than hockey. I posted a quasi-solution a few days ago, in that if I hit
rewind for a few seconds, then play, it seems much better. It's
definitely not a disk-throughput issue - I'm running a RAID 0 with 2 X
320GB Sata II for recordings, with myth on a separate 320GB Sata II drive.
Since I'm using firewire, should I increase the speed to 800 from 400?
Or should I drop it down to 200 on the basis I'm overwhelming it at 400?
Ian: yes, am in paradise...er...Vancouver and the firewire worked right
away from the Shaw HD box - didn't need to contact Shaw at all. I used
to use a PVR-350 but the resolution is limited so switched to firewire
and wish I'd done so sooner. The only thing which happens once in a blue
moon is the node switches (ie from 0 to 1 or 2 to 0 etc). That used to
be an occasional inconvenience in that you'd need to run plugreport then
go into mythtv-setup and change the node, however since I switched to
the SVN it appears to change nodes automatically. Some of the channels
are encrypted - the time-shifted US superstations in particular - but
that doesn't bother me since I very rarely watch live-TV since building
my myth setup 9 months ago. On principle, tho, I've complained to the
CRTC since it strikes me as a restraint of trade, ie it hinders
competition in PVRs since only the cable company's PVR works with the
blocked channels...
And please no comments on my lowly Canucks...
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