[mythtv-users] Playback/seeking strangeness

Cecil Watson cwatson at linkline.com
Thu Apr 28 23:23:08 UTC 2005


Hello,

Andy Foster wrote:

>I understand there are currently some ongoing 0.17+ issues with
>playback which may or may not be codec, hardware or performance
>related, and just wanted to find out if this explains the rather
>bizarre symptoms I'm getting. To summarise:
>
>1. During watching tv (no recording)
> All is good. Seeking (timeshit) is fine, playback is fine.
>
>2. During live playback (when playing back a show that is currently
>being recorded):
> Seeking is fine.
> Playback is substantially faster than recording. If I'm tailing the
>live feed by about 10 seconds, it takes about 40 seconds for playback
>to catch up, and then it stalls for a few seconds or exits to the
>recordings interface telling me the recording has ended (it hasn't).
>
>3. During playback of shows where recording has completed:
> The initial ffwd works (ie I can jump forwards 6 seconds). Then
>seeking doesn't work. Trying to seek or jump causes sporadic pauses
>and sometimes freezes.
> In addition, the show duration changes wildly. Sometimes it sits near
>what I imagine it should be and oscillates by 1 second. Othertimes it
>just goes nuts. A few times I've had it go up to several hundred
>hours. I can't actually seek there, of course
> Playback skips forward by (I estimate) 2-4 seconds every now and
>then, basically cutting slices out of the show.
>
>Anyway the end result is, unfortunately, a fairly useless pvr. I've
>tried dabbling with libmpeg2, video timebase and extra audio buffering
>options without luck. XvMC is constantly off. Mplayer plays and seeks
>the recordings fine, although the 2-4 second skipping is still
>present. I'm running a P4 2.4Ghz, GeForce4MX with VisionPlus DTV with
>the current 0.18 release. It did work fine with 0.16.
>
>Are these common problems or is there something very unhealthy with my setup?
>
>thanks
>
>  
>
Check your db for error.

Regards,

Cecil


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