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2012-09-10, 23:09
(This post was last modified: 2012-09-10, 23:11 by hondo3.)
Can users of the various PVR plugins let me know approximately how long it takes to change channels on their setup?
So ideally I'd like to know what pvr plugin you're using, how long the channel change is taking, and whether the server is on the same machine or another machine.
Thanks!
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artrafael
Team-XBMC Forum Moderator
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Welcome to the XBMC forums.
You should also ask what tuner hardware others are using in addition to the PVR software and system topology. The hardware will have some bearing on how quickly channel switching will occur.
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True, the more info they can give the better, but at the very least I want to know what plugin they were using, and how long channel changes were taking.
I've tried searching but couldn't really find any info on this.
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I've actually created a new PVR plugin, and it's basically working, but channel change times are less than stellar, so I'm hoping to find out how the other tv plugins are performing in comparison.
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I'm using tvheadend with the old dual tuner hdhomerun receiving qam channels from my cable. Channel changes are typically around a second or less.
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That sounds great. Mine are much slower than that.
Is tvheadend on the same machine or a elsewhere on the network?
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2012-09-11, 08:32
(This post was last modified: 2012-09-11, 08:43 by hondo3.)
I'm still interested to hear how quickly other addons (mediaportal/argus/mythtv) are changing channels.
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Hi Hondo3,
I'm using MP TV Server and I have sub 1s changes if the current tuner is active, a little bit longer if I'm switching to a different tuner. This is on SD channels. 1080i channels take 2-3 seconds in total, but some of that might be due to the decryption API I'm using to watch Sky.
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The MP Server is on the main HTPC (single seat) and connected via TSReader. The office PC is connected over 100mb lan and is also using TSReader, that again has very similar channel change times.
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2012-09-11, 22:45
(This post was last modified: 2012-09-11, 22:47 by hondo3.)
I basically changed from "streaminfo = true" to "streaminfo = false" in DVDDemuxFFmpeg.cpp, which controls whether it goes into this section of code that does the slow avformat_find_stream_info call. Without this, the PVR still seems to give me live tv without any problem, and now abou 5 seconds quicker to change channels. As I said though, it may break playback in other areas, so not something I'd consider a long term fix.