Channel change delays and codecs

[jaipal2004]

Hi,

I am experiencing slow channel switching with my NextPVR server running on a HP36L (1.3Ghz, 3GB RAM, HD5450 GPU) and XBMC on a Raspberry Pi. It takes upto 25-30 second to get a HD stream and when changing channels it can take up to 10 seconds (SD).

I've not installed the codec packs on the server yet and will do so today (SAF unlocked ones) - could this be the reason I'm experiencing delays in the change change?

[gEd]

welcome

if you mean channel changing on the Pi client, then installing codes on the server won't make any difference afaik.

check out http://forums.nextpvr.com/showthread.php...hange+xbmc

http://forum.xbmc.org/showthread.php?tid=150887

you are not alone.

[jaipal2004]

welcome

if you mean channel changing on the Pi client, then installing codes on the server won't make any difference afaik.

check out http://forums.nextpvr.com/showthread.php...hange+xbmc

http://forum.xbmc.org/showthread.php?tid=150887

you are not alone.

Thanks for that - I've seen that thread and downloaded that version of XBMC.

However, that's all Windows XBMC orientated - nothing on there about the Raspberry Pi and OpenElec.......

Any 'fixed' builds available for that combo?

[sub]

NextPVR is delivering new channel data to XBMC after 1-2 seconds. There is a known design flaw in XBMC which causes it to not show video for about 7-10 seconds, making channel changes really slow. This effects the other XBMC PVR backends as well, not just NextPVR.

They've been working on this, and they did post Windows test builds which got the time down to a couple of seconds. Its just a waiting game now, for these updates to flow into the main builds, and out to other platforms like RPi.

I'm not sure where the 25-30 seconds is coming from. I've never seen any channel changes that slow.

[mvallevand]

I'm not sure where the 25-30 seconds is coming from. I've never seen any channel changes that slow.

On a RPi going from HD to SD or vice-verse I do.

Martin

[sub]

Sounds like it's probably an XBMC/RPi problem rather than a NextPVR problem.

[jaipal2004]

I managed to get my channel change time down to 15 odd seconds by tweaking my wifi settings on my superhub so it does wireless-n

Still not great so will have to wait for the XBMC Windows build fixes to filter thru to the other devices!