[mythtv-users] Mac OSx frontend live TV issue.

Greg Moeller skywise at gmail.com
Tue Jul 9 22:47:02 UTC 2013


Good afternoon.
I'm trying to get the mythTV frontend working on my media mac mini.

Here's my setup.
Backend using mythbuntu and 0.26 and two tuners (hdhomerun and HDPVR)
Frontend using a 10.8 mac mini (i3) and mythfrontend 0.26
(MythFrontend-v0.26.0-175-g7f71e02)
The back end is working perfectly, records shows, librarians them so
plex can understand. (both tuners)
The frontend runs, can see shows, play them. But when I try live TV i get
Video frame buffering failed too many times.
Sometimes I'll get a single frame, usually nothing at all, sometimes it
plain blows up.
I also tested this on a quad core i7 mac mini, exact same issue.
As a test I built up a mythbuntu frontend install under virtualbox(on
the same mac) and other than some decoding speed issues (h.264) it
worked perfectly.

So, the problem seems mac related. All networking in the house is
hardwired, giga-bit.


I ran a debug with the front end and this seems to be the spot giving
problems...

2013-07-09 17:19:34.842588 D  SendReceiveStringList(MESSAGE,SYSTEM_EVENT
PLAY_CHANGED HOSTNAME calvin CHANID 1061 STARTTIME 2013-07-09T22:19:34Z
SENDER calvin) called from UI thread
2013-07-09 17:19:34.847536 I 
FileRingBuf(/Volumes/public/video/mythtv/1061_20130709221933.mpg):
OpenFile(/Volumes/public/video/mythtv/1061_20130709221934.mpg, 10000 ms)
2013-07-09 17:19:37.135415 W 
RingBuf(/Volumes/public/video/mythtv/1061_20130709221934.mpg): Taking
too long to be allowed to read..
...
2013-07-09 17:19:45.849940 E 
RingBuf(/Volumes/public/video/mythtv/1061_20130709221934.mpg): Took more
than 10 seconds to be allowed to read, aborting.
2013-07-09 17:19:45.850030 W 
RingBuf(/Volumes/public/video/mythtv/1061_20130709221934.mpg): Peek()
requested 2048 bytes, but only returning 0
2013-07-09 17:19:45.850055 E  Player(0): OpenFile(): Could not read
first 2048 bytes of '/Volumes/public/video/mythtv/1061_20130709221934.mpg'
2013-07-09 17:19:45.850273 E  Player(0): JumpToProgram failed.
2013-07-09 17:19:45.850319 E  Player(0): Unknown recorder error, exiting
decoder
2013-07-09 17:19:45.850982 I  Player(0): Decoder thread exiting.

A quick ls on the same mac gives:
calvin:~ gsd$ ls /Volumes/public/video/mythtv/1061_20130709221934.mpg
/Volumes/public/video/mythtv/1061_20130709221934.mpg
calvin:~ gsd$ ls -l /Volumes/public/video/mythtv/1061_20130709221934.mpg
-rw-r--r--  1 gsd  staff  21670572  9 Jul 17:19
/Volumes/public/video/mythtv/1061_20130709221934.mpg

Any ideas?
(BTW, all media is accessable using the same paths on all the servers
but the virtualbox wouldn't have had that path)

Just tried playing a pre-recorded show and that worked with this in the log:
2013-07-09 17:39:26.159478 D  SendReceiveStringList(MESSAGE,SYSTEM_EVENT
PLAY_STARTED HOSTNAME calvin CHANID 2505 STARTTIME 2013-07-02T02:00:00Z
SENDER calvin) called from UI thread
2013-07-09 17:39:26.160149 I  TV: tv->Playback() -- begin
2013-07-09 17:39:26.169855 I  TV: HandleStateChange(0) -- begin
2013-07-09 17:39:26.170020 I  TV: Attempting to change from None to
WatchingPreRecorded
2013-07-09 17:39:26.172625 I 
FileRingBuf(/Volumes/public/video/mythtv/2505_20130702020000.mpg):
OpenFile(/Volumes/public/video/mythtv/2505_20130702020000.mpg, 2000 ms)
2013-07-09 17:39:26.224782 I  TV: StartPlayer(0, WatchingPreRecorded,
main) -- begin
2013-07-09 17:39:26.224800 I  TV: Elapsed time since TV constructor was
called: 143 ms


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