[mythtv-users] Suddenly taking very long time to start playback of recordings

Michael T. Dean mtdean at thirdcontact.com
Thu Dec 20 18:33:28 UTC 2012


On 12/20/2012 12:54 PM, Roald wrote:
> Hi list.
>
> After upgrading mythtv to 0.25.3 it suddenly takes over 1 minute from
> I start a recording to it actually plays on the TV. I am not sure it
> happened at the same time, but I first noticed it the day after I
> upgraded. Nothing else changed on either the frontend or backend.
>
> Here's the log from mythfrontend -v playback
>
> 2012-12-20 18:37:50.323181 I  TV: Creating TV object
> 2012-12-20 18:37:50.344683 I  TV: Finished creating TV object
> 2012-12-20 18:37:50.344865 I  TV: StartTV() -- begin
> 2012-12-20 18:37:50.345170 N  Resuming idle timer
> 2012-12-20 18:37:50.345286 N  Suspending idle timer
> 2012-12-20 18:37:50.345309 I  TV: Init -- begin
> 2012-12-20 18:37:50.358631 I  TV: Created TvPlayWindow.
> 2012-12-20 18:37:50.358946 I  TV: DrawUnusedRects() -- begin
> 2012-12-20 18:37:50.358974 I  TV: DrawUnusedRects() -- end
> 2012-12-20 18:37:50.364409 I  TV: Init -- end
> 2012-12-20 18:37:50.366018 I  TV: tv->Playback() -- begin
> 2012-12-20 18:37:50.386545 I  TV: HandleStateChange(0) -- begin
> 2012-12-20 18:37:50.386607 I  TV: Attempting to change from None to
> WatchingPreRecorded
> 2012-12-20 18:37:50.405146 I
> FileRingBuf(/shared/media/Myth/Store/1007_20121220155800.mpg):
> OpenFile(/s
> hared/media/Myth/Store/1007_20121220155800.mpg, 2000 ms)
> 2012-12-20 18:39:47.616348 I  TV: StartPlayer(0, WatchingPreRecorded,
> main) -- begin
> 2012-12-20 18:39:47.616534 I  TV: Elapsed time since TV constructor
> was called: 117293 ms
> 2012-12-20 18:39:47.991045 N  AudioPlayer: Enabling Audio
> 2012-12-20 18:39:48.010278 I  Player(1): Stretch Factor 1, allow passthru
> 2012-12-20 18:39:48.013330 I  AFD: Buffer size: 32768, streamed 0
> 2012-12-20 18:39:48.203908 I  AFD: Stream #0, has id 0x1e0 codec id
> MPEG2VIDEO, type Video, bitrate 6000
> 000 at 0x56fa920
> 2012-12-20 18:39:48.245651 I  VDP: Accepting: cmp(>  0 0) dec(vdpau)
> cpus(1) skiploop(enabled) rend(vdpau
> ) osd(vdpau) osdfade(enabled) deint(vdpaubobdeint,vdpauonefield)
> filt(vdpauskipchroma,vdpaucolorspace=au
> to)
>
> The fileshare is mounted with NFS, as it has been since about 2004. Is
> there a limit to how many files there can be in a store? I have many
> recordings.
>
> I tried unmounting the NFS filesystem on the frontend, and then it
> started playing back instantaneously. However, I would like to have
> the share there, as I use it for music and for a few other programs
> available on the frontend. I don't care whether the recording plays
> via streaming or via NFS.
>
> There used to be an option "Always stream recordings from the backend"
> but I can't seem to find it? Has it disappeared or just moved away
> from General Playback (1/8) (taken from the wiki)?

If you want to stream files from the backend using MythTV protocol, 
either don't mount their directories via NFS or mount them at some 
location that's not in any of your Storage Group directory lists (on any 
host)--which, by definition, means that they will be at some location 
different from their location on the backend.

Mike


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