(2014-12-29, 23:20)jsturgis Wrote: I am having the same issues with openelec 5.0 and OSX Yosemite with Kodi Helix installed.

Issues I have seen are stuttering while playing liveTV (fixed by enabling demuxing), playback freezes after a few minutes of watching and the log says "MythTV PVR Client: (CPPMyth)Read: read position is ahead" repeatedly unless I pause for a few seconds and then play. I see these issues with both MythTV 0.27 and 0.28.

Everything was working fine on openelec 4.2.1 and liveTV works fine with mythfrontend, I checked the CPU use on the mythbackend machine and it never goes above 7%.

When the playback freezes I see this in the log:

CDVDMessageQueue(audio)::Get - asked for new data packet, with nothing available
CDVDMessageQueue(video)::Get - asked for new data packet, with nothing available

Log file

When the playback freezes in Kodi the liveTV recording continues in MythTV, it seems like the mythTV addon is reading to far ahead and then playback freezes.

Any ideas on how to fix MythTV playback on Kodi Helix?

• I use only wired connections in my home, with gigabit LAN. Also, there is ample bandwidth to play HD videos in Kodi (via my media server) with no issue. I'm 99.99999% sure the issue is not with bandwidth.
  
• When I revert to Gotham (13.2) and the latest cmyth add-on (1.9.16-14) for Gotham, the problem goes away
  
• I have an additional HTPC terminal running Gotham (13.2) and the cmyth add-on, and I've never had an issue with that one.
  
• I have spent countless hours reading posts here (and elsewhere), trying out various suggestions others have made. These include (but are not limited to): Enabling MPEG-2 Demuxing, playing with the VDPAU settings, generating xorg.conf and disabling compositing (nVidia only), and of course setting the API PIN to 0000 on the backend.
  

(2015-01-01, 00:43)jsturgis Wrote: I also have a Ceton InfiniTV 4 maybe that has something to do with it?

(2015-01-01, 00:57)nickr Wrote: @felonious do you have demux on in pvr.mythtv settings?

(2015-01-01, 00:57)nickr Wrote: @felonious do you have demux on in pvr.mythtv settings?

(2014-12-31, 23:35)nickr Wrote: One is .2, other is .20.

(2015-01-01, 17:55)janbar Wrote: @all , so thanks for posted samples !

I pushed a new release 1.11.0-helix and 1.9.22-30-gotham including a patch to resolve stuttering in some cases.

- Check my cloud for new releases:
https://www.canneasucre.org/owncloud/public.php?service=files&t=5f9f8b8e455bbdd3d0e95f4750925043
- Or from launchpad (janbar ppa) for ubuntu users.

I removed sleeping code on read ahead. It seems to be the guilty. Please let me know about then i will push the fix to xbmc team.

Happy new year !

(2015-01-01, 18:32)MikeB2013 Wrote:

(2015-01-01, 17:55)janbar Wrote: @all , so thanks for posted samples !

I pushed a new release 1.11.0-helix and 1.9.22-30-gotham including a patch to resolve stuttering in some cases.

- Check my cloud for new releases:
https://www.canneasucre.org/owncloud/public.php?service=files&t=5f9f8b8e455bbdd3d0e95f4750925043
- Or from launchpad (janbar ppa) for ubuntu users.

I removed sleeping code on read ahead. It seems to be the guilty. Please let me know about then i will push the fix to xbmc team.

Happy new year !

@janbar

Built from source for gotham, live tv played for a few seconds then exited to main xbmc screen

Edit: Demux not enabled

log is here http://xbmclogs.com/show.php?id=389808

Mike

(2015-01-01, 19:03)janbar Wrote: @MikeB2013

You could update the source file lib/cppmyth/cppmyth/src/mythlivetvplayback.cpp at line 494:
replacing...

Code:

if (timeout)
{
m_timeout->Init(100); // Retry after 100ms
DBG(MYTH_DBG_WARN, "%s: read position is ahead (%" PRIi64 ")\n", __FUNCTION__, fs);
}
return 0;

by

Code:

if (timeout)
{
m_timeout->Init(100); // Retry after 100ms
DBG(MYTH_DBG_WARN, "%s: read position is ahead (%" PRIi64 ")\n", __FUNCTION__, fs);
}
else usleep(10000);
return 0;

There it will wait for 10ms