Processing 360 video

[israelvirtual]

Hello,
I have read on the README from tag 2.0 that the model is able to extract the saliency from videos this way:

The tool can also support videos with a large variety of codec and containers. The output saliency map will be another video encoded in H.264 in a .mkv containter. To process a video, use the option -i and provide the video to process as parameter.

I have tried to do this to an mp4 360 video called VR by typing .\salient.exe -i VR.mp4 --general-model 1 -o outputvid.mkv , but got the error

Mayve this is a quick fix, do you know how to proceed?