Invalid and inefficient vfw-avi packed B frames detected

[afrozalm]

I have installed everything necessary but I still get the following error:

Gtk-Message: Failed to load module "pantheon-filechooser-module"
Gtk-Message: Failed to load module "canberra-gtk-module"
[mpeg4 @ 0x7f10c005dc00] Invalid and inefficient vfw-avi packed B frames detected
[1] 8324 segmentation fault (core dumped) qlua test-frame.lua -v ~/Downloads/temp/mv2_001.avi

[Atcold]

There are 20 different tools in this repository. What are actually talking about?