[mythtv-users] LiveTV fails on the hour with "Error: Video frame buffering failed too many times."

[John Luber]

Hi All,

I have a backend with multiple frontends all running 22924 or later (be 
& fe's). The backend has two hdhr's, a pchdtv 5500 and an SD hauppauge 
150. Watching live tv on any frontend profiles results in consistently 
getting "Error: Video frame buffering failed too many times." at the top 
of the hour (ie; 1:00, 3:00, etc).

Frontends have either NVIDIA 9500GT w/ 1gb or NVIDIA 9400 w/ 1gb.  
Frontends use NVIDIA 195.22 but this also happens with 190 drivers as well.

This problem has persisted since upgrading to .22. Did not observe this 
behavior in .21 but did not watch much live tv in .21.

Based on observations I believe that this has something to do with the 
change-over from one live tv recording file to another at the top of the 
hour / change of program.  I see reference in the frontend log to the 
new file that should be created however I never see it in the filesystem.

Log snippet:

2009-11-30 16:00:31.378 NVP(0): Prebuffer wait timed out 190 times.
2009-11-30 16:00:31.378 NVP(0), Error: Timed out waiting for 
prebuffering too long. Exiting..
2009-11-30 16:00:31.378 NVP(0), Error: Video frame buffering failed too 
many times.
2009-11-30 16:00:32.878 NVP(0): Prebuffer wait timed out 200 times.
2009-11-30 16:00:32.878 NVP(0), Error: Timed out waiting for 
prebuffering too long. Exiting..
2009-11-30 16:00:32.878 NVP(0), Error: Video frame buffering failed too 
many times.
2009-11-30 16:00:34.374 NVP(0): Prebuffer wait timed out 210 times.
2009-11-30 16:00:34.374 NVP(0), Error: Timed out waiting for 
prebuffering too long. Exiting..
2009-11-30 16:00:34.374 NVP(0), Error: Video frame buffering failed too 
many times.
2009-11-30 16:00:35.842 NVP(0): Prebuffer wait timed out 220 times.
2009-11-30 16:00:35.842 NVP(0), Error: Timed out waiting for 
prebuffering too long. Exiting..
2009-11-30 16:00:35.842 NVP(0), Error: Video frame buffering failed too 
many times.
2009-11-30 16:00:37.342 NVP(0): Prebuffer wait timed out 230 times.
2009-11-30 16:00:37.342 NVP(0), Error: Timed out waiting for 
prebuffering too long. Exiting..
2009-11-30 16:00:37.342 NVP(0), Error: Video frame buffering failed too 
many times.
2009-11-30 16:00:38.842 NVP(0): Prebuffer wait timed out 240 times.
2009-11-30 16:00:38.842 NVP(0), Error: Timed out waiting for 
prebuffering too long. Exiting..
2009-11-30 16:00:38.842 NVP(0), Error: Video frame buffering failed too 
many times.
2009-11-30 16:00:40.342 NVP(0): Prebuffer wait timed out 250 times.
2009-11-30 16:00:40.342 NVP(0), Error: Timed out waiting for 
prebuffering too long. Exiting..
2009-11-30 16:00:40.342 NVP(0), Error: Video frame buffering failed too 
many times.
2009-11-30 16:00:40.978 FilterManager: Failed to load filter 
'colorspace', no such filter exists
2009-11-30 16:00:41.010 TV: Attempting to change from None to Watching 
WatchingLiveTV
2009-11-30 16:00:41.010 MythContext: Connecting to backend server: 
192.168.1.100:6543 (try 1 of 1)
2009-11-30 16:00:41.030 Using protocol version 50
2009-11-30 16:00:41.326 Spawning LiveTV Recorder -- begin
2009-11-30 16:00:41.494 NVP(0), Error: SwitchToProgram failed.
2009-11-30 16:00:41.494 NVP(0), Error: Unknown recorder error, exiting 
decoder
2009-11-30 16:00:41.558 ~OpenGLVideoSync() -- closing opengl vsync
2009-11-30 16:00:41.758 Spawning LiveTV Recorder -- end
2009-11-30 16:00:41.874 We have a 
playbackURL(myth://192.168.1.100:6543/7131_20091130160042.mpg) & 
cardtype(DUMMY)  <<-- THIS FILE DOES NOT EXIST IN THE FILESYSTEM
2009-11-30 16:00:41.882 We have a RingBuffer
2009-11-30 16:00:41.934 TV: StartPlayer(0, Watching WatchingLiveTV, 
main) -- begin
2009-11-30 16:00:41.934 playCtx, Error: Attempting to setup a player, 
but it already exists.
2009-11-30 16:00:41.934 TV: StartPlayer(0, Watching WatchingLiveTV, 
main) -- end error
2009-11-30 16:00:41.934 TV Error: LiveTV not successfully started
2009-11-30 16:00:41.958 ScreenSaverX11Private: DPMS Deactivated 1
2009-11-30 16:00:41.958 ScreenSaverX11Private: DPMS Reactivated 1

I've searched the tickets and found #6583 
<http://svn.mythtv.org/trac/ticket/6583> (reported as closed) which 
sounds identical to the problem I am having and have opened #7697 
<http://svn.mythtv.org/trac/ticket/7697>...

Anyone else having this issue?  Any thoughts to a resolution or workaround?

Thanks!

John



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