[mythtvnz] HDHomerun - VLC on Linux - Yes - well sort of!

[Tortise]

Steven

Re CPU I was quoting from http://www.silicondust.com/products/hdhomerun_dvbt  I expect you are correct.

Out of interest what signal strength and quality are you testing with?

I've moved my unit up to the top of the antennae tree here to now get 100% strength and 85-87% quality.  It probably improves things 
a little, the issues continue, just less so.  Video breaks on TV1 do not seem associated with any appreciable S/Q % reduction's 
outside the minor variation that occurs, instead they do seem to be associated with major video scene changes.  TV1 is curiously and 
currently displaying better than C4.  I look forward to running up a VDPAU box.

Kind regards
David

----- Original Message ----- 
From: "Steven Ellis" <steven at openmedia.co.nz>
To: "MythTV in NZ" <mythtvnz at lists.linuxnut.co.nz>
Sent: Monday, March 30, 2009 6:55 PM
Subject: Re: [mythtvnz] HDHomerun - VLC on Linux - Yes - well sort of!




>
> Silicon Dust's website suggests the 2.8 GHz Pentium 4 (or similar) for HD
> playback is the minimum hardware specification.  The test rig seems to
> exceed that.  Seems to me the solution likely also lies in VDPAU, however
> for me even C4 does not play smoothly, I would have thought there was
> enough grunt to manage C4, certainly SD MPEG2's of the same C4 content
> play fine, so perhaps there are things they can address??  Problems also
> could lie in the antennae strength (seems unlikely given other DVB-T gear
> is receiving ok) VLC's ability to play, maybe the LAN or ?  Given the
> HDHomeRun is new to the NZ DVB-T market it would not surprise me if some
> firmware upgrades prove to be necessary to get this working to the
> standard I was expecting.
>

sadly the Silicon Dust specs are for HD MPEG2 broadcasts like the US and
AU. The specs for HD H.264 like NZ are far greater. My X2-6000+ can do
TV1/2 but sometimes struggles with TV3. On my single core 3200+ I can do
the SD channels (C4 etc) but even TV1/2 struggle.

Really we need VDPAU or similar hardware acceleration for HD playback.
Your signal strength is a little low but nothing extreme.

Steve


--------------------------------------------
Steven Ellis - Technical Director
OpenMedia Limited - The Home of myPVR
email   - steven at openmedia.co.nz
website - http://www.openmedia.co.nz

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