The following command will be more clear to show the result of output video effect:
avconv -f video4linux2 -i /dev/video0 -f alsa -i pulse -f flv -ar 22050 test.flv -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libav in Ubuntu. https://bugs.launchpad.net/bugs/1386218 Title: avconv from libav-tools.deb generate bad video in trusty/utopic but only "happened in i386 not amd64" Status in “libav” package in Ubuntu: New Bug description: I have a series of x86 machines for converting multimedia, but an bug from avconv(from libav-tools.deb) annoyed me for a long time (and it even happen in 14.10) that mixing video and audio using avconv generated a bad media output - output video is continuity continuously suspended, which cannot be used (output audio is okay). Finnally, I find out that it only happens in 32bit 14.04 and 14.10, but it's hard to replace i386 to amd64. A command to reproduce the bug: > avconv -f x11grab -i :0.0 -f alsa -i pulse -f flv -ar 22050 test.flv Ubuntu 12.04.5 i386:good, amd64:good Ubuntu 13.10 i386:good, amd64:good Ubuntu 14.04.1 i386:bad, amd64:good Ubuntu 14.10 i386:bad, amd64:good 'bad' warning forever: Non-monotonous DTS in output stream 0:1; previous: 3947, current: 3891; changing to 3947. This may result in incorrect timestamps in the output file. Need help, thanks! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libav/+bug/1386218/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
