[mythtv-users] PVR-350 Performance still BAD

[Frutillar]

This is complementary to the notes I sent a few minutes ago (below).

Interesting!  I scheduled the recording of a program that was starting a few 
minutes ago and now I started to watch it (all through Myth).  I can see the 
recorded program just fine, but I get no audio.  I also see the preview with 
a delay (when looking at the recorded programs) and after a while my mythbox 
died.  I had to power cycle it.

On Tuesday 25 January 2005 08:09 pm, Frutillar wrote:
> On Tuesday 25 January 2005 01:17 am, John Harvey wrote:
> > Not related. That is to do with X and if fbdev wasn't working then X
> > wouldn't start.
> >
> > Do you get any other messages when playing live tv? (In particular I'm
> > interested in messages about dropping buffers).
>
> Thanks for those questions.  I see from the log for mythfrontend (see the
> log at the end) that it seems it cannot find Xv.  I am not sure what this
> is, but after google-ing some I found that I can run xvinfo to get some
> information. This is what I got:
>
> ======================
> X-Video Extension version 2.2
> screen #0
>  no adaptors present
> ======================
>
> From my google-ing it seems I get this when I do NOT tell Myth to use the
> pvr-350 hardware for playback.  However, I have checked this many times
> (and I just checked again before sending this out).  I have "Use the
> PVR-350's TV out / MPEG decoder" checked and the ¨Video device for the
> PVR-350 MPEG decoder:" is set to /dev/video16.  Farther down I have
> "Program Guide Alpha:" is 164.
>
> > Does a recording/mpeg play ok?
> > Can you just record Ok?
>
> I am not sure.  I do not have mplayer installed (I think I uninstalled it
> by mistake at one point and urpmi wants to install the wrong liblirc0.lib,
> so I have to download/compile it... have not gotten to it yet).  I
> scheduled a recording o Myth and I see the drive light going on every so
> often, so I assume it is recording.
>
> > For playing an mpeg try
> > dd if=file.mpg of=/dev/video16 bs=64k
> >
> > If that's ok then try
> >
> > dd if=/dev/video0 of=newfile.mpg bs=64k
> >
> > to record the current tv channel (Use ptune or something to tune the
> > correct channel first).
> >
> > Then see if you can play that recorded mpeg.
> > And you should probably move this over to the ivtv list since it's really
> > an ivtv issue.
>
> At one point I did run all these tests and I was able to see just fine.  As
> a matter of fact, I remember I did something like
> dd if=/dev/video0 of=/dev/video16
> and I was able to see tv just fine.  The problem seems to be within Myth.
>
> Thanks!!
>
> ============myhfrontend log =================
> Mon Jan 24 22:41:11 PST 2005 START
> 2005-01-24 22:41:11 mythfrontend version: 0.16.20040906-1 www.mythtv.org
> 2005-01-24 22:41:11 Enabled verbose msgs : important general
> 2005-01-24 22:41:13 Registering Internal as a media playback plugin.
> 2005-01-24 22:41:14 Starting media monitor.
> Error loading image file:
> /usr/local/share/mythtv/themes/default/NOTHING.png 2005-01-24 22:42:01
> Connecting to backend server: 127.0.0.1:6543 (try 1 of 5) 2005-01-24
> 22:42:01 Using protocol version 13
> 2005-01-24 22:42:01 Using protocol version 13
> 2005-01-24 22:42:01 Using protocol version 13
> 2005-01-24 22:42:09 Opening OSS audio device '/dev/dsp'.
> 2005-01-24 22:42:09 Audio fragment size: 4096
> X Error: XvBadPort 152
>   Major opcode:  141
>   Minor opcode:  15
>   Resource id:  0xffffffff
> X Error: XvBadPort 152
>   Major opcode:  141
>   Minor opcode:  14
>   Resource id:  0xffffffff
> Couldn't get the color key color, and we need it.
> You likely won't get any video.
> ***
> * Couldn't find Xv support, falling back to non-Xv mode.
> * MythTV performance will be much slower since color
> * conversion and scaling will be done in software.
> * Consider upgrading your video card or X server if
> * you would like better performance.
> 2005-01-24 22:42:10 Changing from None to WatchingLiveTV
> pthread_setschedparam: Operation not permitted
> 2005-01-24 22:42:11 Running as SUID root would allow some threads to run
> with realtime priority, improving video smoothness.
> 2005-01-24 22:42:12 prebuffering pause
> 2005-01-24 22:42:14 prebuffering pause
> 2005-01-24 22:42:15 prebuffering pause
> ***
> * Your system is not capable of displaying the
> * full framerate at 720x480 resolution.  Frames
> * will be skipped in order to keep the audio and
> * video in sync.
> 2005-01-24 22:42:16 prebuffering pause
> 2005-01-24 22:42:18 prebuffering pause
> 2005-01-24 22:42:19 prebuffering pause
> 2005-01-24 22:42:21 prebuffering pause
> 2005-01-24 22:42:23 prebuffering pause
> 2005-01-24 22:42:24 prebuffering pause
> 2005-01-24 22:42:26 prebuffering pause
> 2005-01-24 22:42:30 prebuffering pause
> 2005-01-24 22:42:32 prebuffering pause
> 2005-01-24 22:42:33 prebuffering pause
> 2005-01-24 22:42:34 prebuffering pause
> 2005-01-24 22:42:35 prebuffering pause
> 2005-01-24 22:42:37 prebuffering pause
> 2005-01-24 22:42:38 prebuffering pause
> 2005-01-24 22:42:40 prebuffering pause
> 2005-01-24 22:42:42 prebuffering pause
> 2005-01-24 22:42:46 prebuffering pause
> 2005-01-24 22:42:48 prebuffering pause
> 2005-01-24 22:42:49 prebuffering pause
> 2005-01-24 22:42:50 prebuffering pause
> 2005-01-24 22:42:51 prebuffering pause
> 2005-01-24 22:42:56 prebuffering pause
> 2005-01-24 22:42:58 prebuffering pause
> 2005-01-24 22:42:59 prebuffering pause
> 2005-01-24 22:43:01 Changing from WatchingLiveTV to None
> 2005-01-24 22:43:01 Changing from None to None
> ========================================