[libav-tools] Capturing and showing desktop with avconv/avplay.

Luca Barbato lu_zero at gentoo.org
Sat Nov 28 17:05:19 CET 2015

On 20/11/15 18:54, Mario Mey wrote:
>> Which version of libav are you using?
> $ avconv
>   avconv version 9.18-6:9.18-0ubuntu0.14.04.1, Copyright (c) 2000-2014
> the Libav developers
>    built on Mar 16 2015 13:19:10 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
>> how much cpu blenderplayer is taking?
> Yes, BlenderPlayer is a Game Engine. It takes 40% or more... but it's
> irrelevant to the main problem. It starts at 30fps and then it starts
> getting lower and lower and get freeze... till clicking the window. Even
> avconv/avplay window is in focus. Even without BlenderPlayer running!
>> You might get better results by switching to x264 in ultrafast mode.
> I tried to use x264, but it starts after 5 seconds, more or less... and,
> when it gets freeze and I click the window, there're a lot of artifacts.
> No matter if it has or don't have ultrafast preset.
> I tried mjpeg, mpeg4, libx264, rawvideo... they all do the same. Maybe
> something in avplay?

could you please try with the current git or even a release 11 ? 9 is 
quite old.

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