Is it possible to do this?

[GamerDeMTA]

Put a video when a player joins the server with a MP4 or that formats or only with shaders or what?

[Castillo]

MTA doesn't support videos.

[GamerDeMTA]

And GIFs when a player joins?

[Castillo]

gifs aren't supported either, but you can use either this useful function I made:

https://wiki.multitheftauto.com/wiki/DxDrawGifImage

Or this sprite library:

viewtopic.php?f=108&t=49179&p=484981

[Anderl]

MTA doesn't support videos.

AFAIK you can add videos with shaders, but not with MP4.

[Castillo]

You can? I didn't know about that.

[Anderl]

I'm not sure but I remember seeing something.. Let me search.. Nevermind, I was confusing.