ERROR: video data stream broken - why?

sofakng · 6. April 2011

I've installed VDR 1.7.17 and I'm trying to record a channel on my DVB-S card (Genpix Skywalker-2).

When my timer starts recording, this is what I see in my log:

Code

Apr  6 09:44:00 dvr vdr: [20705] switching device 1 to channel 1151
Apr  6 09:44:00 dvr vdr: [20705] timer 1 (1151 0944-0945 'testfile') start
Apr  6 09:44:00 dvr vdr: [20705] waiting for EPG info...
Apr  6 09:44:04 dvr vdr: [20705] no EPG info available
Apr  6 09:44:04 dvr vdr: [20705] record /video/testfile/2011-04-06.09.44.1151-0.rec
Apr  6 09:44:04 dvr vdr: [20705] creating directory /video/testfile/2011-04-06.09.44.1151-0.rec
Apr  6 09:44:04 dvr vdr: [20705] recording to '/video/testfile/2011-04-06.09.44.1151-0.rec/00001.ts'
Apr  6 09:44:04 dvr vdr: [20713] recording thread started (pid=20705, tid=20713)
Apr  6 09:44:04 dvr vdr: [20714] receiver on device 1 thread started (pid=20705, tid=20714)
Apr  6 09:44:04 dvr vdr: [20715] TS buffer on device 1 thread started (pid=20705, tid=20715)
Apr  6 09:44:35 dvr vdr: [20713] ERROR: video data stream broken
Apr  6 09:44:35 dvr vdr: [20713] initiating emergency exit
Apr  6 09:44:35 dvr vdr: [20705] emergency exit requested - shutting down
Apr  6 09:44:35 dvr vdr: [20713] recording thread ended (pid=20705, tid=20713)
Apr  6 09:44:35 dvr vdr: [20705] buffer stats: 28012 (0%) used
Apr  6 09:44:35 dvr vdr: [20705] timer 1 (1151 0944-0945 'testfile') stop
Apr  6 09:44:35 dvr vdr: [20705] saved setup to /video/setup.conf
Apr  6 09:44:35 dvr vdr: [20710] section handler thread ended (pid=20705, tid=20710)
Apr  6 09:44:35 dvr vdr: [20709] tuner on frontend 0/0 thread ended (pid=20705, tid=20709)
Apr  6 09:44:35 dvr vdr: [20705] emergency exit!
Apr  6 09:44:35 dvr vdr: [20705] exiting, exit code 1

Alles anzeigen

Why am I getting this error? I've used dvbsnoop to verify that VDR is tuning to the correct transponder. Also, my card works perfect under Windows (DVBDream, etc), so that's not the problem either.

iso · 6. April 2011

I know this error, but I don't know it's source. I wrote a shell script for checking syslog for some "keywords", started by cron every minute. It restarts VDR in case of error.

sofakng · 7. April 2011

I've inserted a bunch of debug statements into the code and I've found the problem.

The MPEG-2 stream doesn't have a "Picture Start Code" (0x00000100), or at least VDR doesnt' see it.

This is strange though because everything works fine on a Windows system using different DVB applications. Maybe they are more relaxed when following the MPEG specifications?

Can something else be wrong on my system?

FireFly · 7. April 2011

On the VDR mailing list there was a patch on 20th of March titled "[PATCH] VDR 1.7.17: fix frame detection" which should be worth to give it a try. However, I don't have a link handy but finding shouldn't be so hard.

sofakng · 14. April 2011

I've found the patch and applied it but it didn't help.

ERROR: video data stream broken - why?

Jetzt mitmachen!

Teilen