Isaac Richards wrote: >>I have been experiencing problems with corrupt ivtv recordings and >>the buffer overflow messages since around September. I thought that >>these were linked to an ivtv upgrade, but now that I look at the >>commit date of the bufferSize changes (09/21/05) in >>mpeg_recorder.cpp, it looks like this corresponds almost exactly with >>the start of my corruption. I have changed the bufferSize to 32768 >>as you suggested on ivtv-devel and I am currently recompiling to test >>the results. I notice that prior to this change, the bufferSize was >>256,000. What is the reason for such a drastic reduction, it wasn't >>mentioned in the commit message. Would setting it back to 256,000 be >>better than 32768? I'll play around with it a bit and let you know >>the results. > > > Smaller reads make ivtv more responsive on channel changes & startup.
I have tried a bufferSize of both 32768 and 256000, but the problem is still there. Strange thing is that it only happens when a recording starts while watching LiveTV. The recording is in the list, but the ivtv driver keeps spewing the 'Overflow' messages and the image in the recording is black. If I quit LiveTV just before the recording starts all goes well. Is there anything different in the path LiveTV->recording and LiveTV->none->recording that could cause this? Nothing strange in mythbackend ouput also: 2005-12-12 22:40:02.728 TVRec(1): Changing from WatchingLiveTV to None 2005-12-12 22:40:03.071 Finished recording Nova/Den Haag vandaag: channel 3 2005-12-12 22:40:03.278 TVRec(1): Changing from None to RecordingOnly 2005-12-12 22:40:04.170 Started recording: Piets weerbericht: channel 19 on cardid 1, sourceid 1 2005-12-12 22:40:04.302 scheduler: Last message repeated 1 times 2005-12-12 22:40:04.332 scheduler: Started recording 2005-12-12 22:40:05.505 Reschedule requested for id 0. 2005-12-12 22:40:06.225 Scheduled 84 items in 0.7 = 0.00 match + 0.72 place 2005-12-12 22:40:06.237 scheduler: Scheduled items 2005-12-12 22:41:51.242 mythbackend: Running housekeeping thread Apart that it always seem to say 'Last message repeated 1 times'. -- Niels _______________________________________________ mythtv-dev mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
