#3 outdated ffmpeg build on Windows

[Dmitry Valento]

Export couldn't be run when project's filepath contains non-english letters.
I.e. when folder is "D:/tmp/папка", ffmpeg output is:

[image2 @ 0000026692351c80] Could find no file with path 'D:/tmp/папка/images/%6d.jpg' and index in the range 0-4
D:/tmp/папка/images/%6d.jpg: No such file or directory

The problem could be reproduced with next direct command (from terminal):
ffmpeg -r 10 -i d:\tmp\папка\images/%6d.jpg -r 25 -s vga -f mp4 -qscale:v 1 -b:v 1000k d:\tmp\папка\rob.mp4

Reason of this problem - using outdated version of ffmpeg on Windows. When I update version from "nighty build 2015" to "stable release 4.1" (https://ffmpeg.zeranoe.com/builds/) the problem is gone.

Therefore, there is needed only to update ffmpeg in qStopMotion 2.4.1\ffmpeg\ folder.

[Dmitry Valento]

There is also problem with libav. Unfortunately, even the latest version (libav-i686-w64-mingw32-20180108.7z) doesn't work properly with that test case.