[FFmpeg-user] x11grab video stalls every 30 seconds in screencapture

Troy Gardner troy at troyworks.com
Tue Jun 26 16:45:41 CEST 2012

On Tue, Jun 26, 2012 at 7:38 AM, Paul B Mahol <onemda at gmail.com> wrote:

> On 6/26/12, Troy Gardner <troy at troyworks.com> wrote:
> > We are using latest ffmpeg, for screencapture in the cloud.
> And older version had same issue?

Hard to say.

We had an earlier version in production created about a year ago that works
fine, but it has many differences: it  used FLV for capture, an much older
version of Ubuntu/ffmpeg and the video was much less demanding so it's
possible that glitches happened but didn't show up.

We've made upgrades everywhere, and this intermittent new one has only
recently showed up as we don't normally check more than a couple seconds of
video in qa, and it's intermittent sometimes the glitch is not noticeable,
it's only now we've created the test case to really show the issue.

Given the rapid stream of updates in ffmpeg, ubuntu, codecs, it's taken us
awhile just to see this issue clearly, and have some idea of where it's at.

> I ask because recently code for multithreaded demuxing have been added.

Is there a flag to turn on/off to test?

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