I have an Iomega Buz card and experienced the same problems described here. I don't think it's actually an audio issue, more a video one.
I finally cured it by reducing the quality setting. This might not work for you but if you are capturing at full frame, try knocking the quality down to 40%, it's visually "perfect" at that quality setting. If you are capturing at half-frame then you can put it back to 80% quality. I personally don't use the geometry (g) option, as I use hardware encoding. For full frame I use decimation=1 and for half-frame I use decimation=2. A pal of mine had similar problems and he cured it by "installing" an earlier version of mjpegtools (v1.6.2). By installing he did ./configure and make in a folder in his home directory (ie. not a system wide install as this would have caused dependency issues). Then he just pointed his script at the newly built lavrec, ie:- /home/somebody/software/src/mjpegtools-1.6.2/lavtools/lavrec --mjpeg-buffers=32 --mjpeg-buffer-size=512 --format=a --input=p --quality=40 --decimation=1 --stereo --audio-bitsize=16 --audio-source=l --audio-volume=75 --use-read --time=6000 --wait file%02d.avi Hope this helps. Regards, Martin Suse 10.0, Athlon 1.4GHz, ASUS Terminator, Iomega Buz On Wednesday 15 February 2006 23:52, Thomas WALTHER wrote: > Am Samstag, 4. Februar 2006 16:57 schrieb Bernhard Praschinger: > > Hallo > > > > > TV card: SAA7134 on SuSE 9.3, Aldi-Medion PC with Pentium I686 and > > > 2,6GHz clock> > > > > What sound card do you have ? > > hwinfo: Microstar International pci 07012, Subdevice p7010, driver Intel > ICH, IRQ11, Driver Status i810_audio is not active, Driver activation cmd: > modprobe i810_audio > > > > your Tip, to create several files with lavrec and % in filename changed > > > the problem, but could not solve it: lavrec -f a -i P -s -t 3600 -g > > > 720x576 -q 80 -software-encoding testvideo%02d.avi created 3 files with > > > 1,47Gb and crashed while creating the 4th file. Coment: audio ring > > > buffer overflow. In Yast I did not find anything to increase buffer > > > size of the sound card. Do you have an idea how to optimize the audio > > > part? > > > > What was the exact error ? 1,47GB is not a size I do remember where it > > shoul split. What size did lavrec print out when recording started ? > > (you might have to add -v 2 to the command) > > max size per file will be 1739MB > > > Can you record for a longer time without sound ? > > lavrec -f a -i P -s -l 0 -t 10 -g 720x576 -q 80 --software-encoding > testvideo% 02d.avi resulted audio ring buffer overflow after 18 Minutes > with 1x1,67GB and 1x102MB. Lost frames: 000; A/V sync ins/del: 1248/000; > Audio errors: 011. I did not find any message in /var/log/messages. > > > auf hoffentlich bald, > > > > Berni the Chaos of Woodquarter > > > > Email: [EMAIL PROTECTED] > > www: http://www.lysator.liu.se/~gz/bernhard > > > > > > ------------------------------------------------------- > > This SF.net email is sponsored by: Splunk Inc. Do you grep through log > > files for problems? Stop! Download the new AJAX search engine that > > makes searching your log files as easy as surfing the web. DOWNLOAD > > SPLUNK! > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 > > _______________________________________________ > > Mjpeg-users mailing list > > Mjpeg-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/mjpeg-users > > ------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. Do you grep through log > files for problems? Stop! Download the new AJAX search engine that makes > searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 > _______________________________________________ > Mjpeg-users mailing list > Mjpeg-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mjpeg-users ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
