At the moment (as far as I know) there is no android program to convert a VS4 file to avi/mp4.
So you will have to make one yourself....
Like
User9475 was already saying: "you have to download the free Android Studio, and write an Android app."
It can be just a very simple program.
Next to making a program, it also very easy to change the VS4 files by hand with a good hex-editor. Or of course convert it on a pc and move it to your phone/tablet.
You can download my (pc) program to convert the VS4 files from my Google Drive folder:
You must be registered to see the links
Of course there is no way to use this MP4 file in the Poker game. You can use this MP4 file to see if an opponent is worth to buy.
