[mythtv-users] Can't get rid of "prebuffering pause" messages

Mon Apr 18 09:56:32 UTC 2005

I had similar issues... I did 2 things:

1. make sure the capture resolution is set correctly, by default it's
set to 480x480 I believe. I changed that to 720x576 (not sure... PAL
resolution anyway). You can find these settings in your frontend...
LiveTV recording profiles of your capture card.

2. I turned down the bitrate of the recordings and livetv a little bit
(I believe I now have them set at 4000 with a max of 5000). These can
be found at the same recording profile settings.

Play around with them a little... let us know how it turned out, maybe
I have some other settings that can be of use.

Kees.

On 4/18/05, Joe Votour <joevph at yahoo.com> wrote:
> Being able to use tvtime to watch TV on your capture
> card is not an indication of how well it will work
> under MythTV.  This is because everytime you watch
> "Live TV", you're still recording and then playing it
> back.  When using tvtime, it's just taking the video
> data and overlaying it into video memory, which is not
> very system intensive.
> 
> A "prebuffering pause" generally happens when the
> frontend doesn't get the data quickly enough from the
> backend.  If you're running the frontend and the
> backend on the same machine, then your PC just isn't
> keeping up.
> 
> Do your hardware specs match those in the MythTV
> documentation (section 3.1)?.  Is DMA enabled on your
> hard drive(s)?
> 
> -- Joe
> 
> --- Scott Simpson <mythtv-users at scottsimpson.tv>
> wrote:
> > Fedora 3, latest ATrpms, AverTV Studio card, Ensoniq
> > PCI audio card
> >
> > I keep getting these "prebuffering pause" messages
> > when watching live TV
> > that is keeping me from getting MythTV working. I
> > thought it was because
> > I was using the audio that came on the motherboard
> > so I turned that off
> > in the BIOS and put the Ensoniq PCI audio card in
> > from another machine I
> > had. Same problem.
> >
> > The weird thing is that I can watch TV with audio
> > with "tvtime" just fine.
> >
> > Here are the messages I'm getting:
> >
> > 2005-04-17 16:54:44.369 mythfrontend version:
> > 0.17.20050130-1 www.mythtv.org
> > 2005-04-17 16:54:44.371 Enabled verbose msgs :
> > important general
> > 2005-04-17 16:54:45.559 Switching to square mode
> > (G.A.N.T.)
> > 2005-04-17 16:54:46.766 Joystick disabled.
> > 2005-04-17 16:54:46.865 Registering Internal as a
> > media playback plugin.
> > 2005-04-17 16:54:46.921 Registering MythDVD DVD
> > Media Handler as a media
> > handler
> > 2005-04-17 16:54:46.923 Registering MythDVD VCD
> > Media Handler as a media
> > handler
> > 2005-04-17 16:54:47.438 Registering MythMusic Media
> > Handler as a media
> > handler
> > SIP listening on IP Address 192.168.1.3:5060 NAT
> > address 192.168.1.3
> > SIP: Cannot register; proxy, username or password
> > not set
> > 2005-04-17 16:54:59.752 Connecting to backend
> > server: 192.168.1.3:6543
> > (try 1 of 5)
> > 2005-04-17 16:54:59.762 Using protocol version 14
> > 2005-04-17 16:54:59.849 Using protocol version 14
> > 2005-04-17 16:55:00.665 Opening audio device
> > '/dev/dsp'.
> > 2005-04-17 16:55:00.666 Opening OSS audio device
> > '/dev/dsp'.
> > 2005-04-17 16:55:00.739 Using XV port 77
> > 2005-04-17 16:55:02.367 Realtime priority would
> > require SUID as root.
> > 2005-04-17 16:55:02.392 Changing from None to
> > WatchingLiveTV
> > 2005-04-17 16:55:02.498 Video timing method: RTC
> > 2005-04-17 16:55:03.373 prebuffering pause
> > 2005-04-17 16:55:04.381 prebuffering pause
> > 2005-04-17 16:55:05.790 prebuffering pause
> > 2005-04-17 16:55:06.568 prebuffering pause
> >
> > Any help would be appreciated. I've been trying to
> > get MythTV working
> > for a year now and keep running into problems.
> >
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> >
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