Merge Image Video not Getting played in VLC or any other Android devices

[Riddhi-mi]

We are using your library to merge the Images and create the video of that merged images which come as a URL with the extension Mp4
When we open that video or the URL in any other third-party application like VLC media player that video is not getting played.

I have downloaded the demo and checked the same thing in demo as well and seen the same behavior as well

So can you please help me with this..!!! Will appreciate the help

Thanks in advance..!!!!