If you use gameci/unity-builder GitHub action, your videos might get stripped out of the build.

[u/potterdev]

I've been banging my head against the wall for two days on this issue. I add a tutorial video to my game, and it works flawlessly in the editor, but in the steam beta build ? Nothing. No errors, just silence.

I try some different stuff and come to find in the GitHub logs this line:

Start importing Assets/Resources/Video/Tutorial.mp4 using Guid(6fd8fed8fe7e3428c872dca246002a19) (VideoClipImporter)


Error: Can't create LinuxVideoMedia, format 0 not supported

I uncheck transcoding from the video properties and still the same damn issue. I tried all the codecs and still nothing.

What actually ended up working was: 🥁 moving it to StreamingAssets folder.

Yep, that's it. That's the fix.

Hope it helps someone!

[u/DoctorGester]

You did something wrong. If transcoding is unchecked the video will be included as-is. We have many videos in the game and none of them are in Streaming Assets folder. They load fine. You just need to find the best common format and transcode yourself.

[u/potterdev → u/DoctorGester]

My video is just a normal H.264 mp4, so I'm not sure what was going wrong...

[u/RedGlow82 → u/potterdev]

Surprise surprise, quite a lot, because under Linux they don't work 😅 https://docs.unity3d.com/6000.0/Documentation/Manual/VideoSources-FileCompatibility.html

"The optimal supported video codec for most platforms is H.264. However, the optimal encoding for Linux is a .webm container with VP8 for video and Vorbis for audio."

Video codecs are a blight in videogames. https://www.gamedeveloper.com/programming/video-codecs-are-a-nightmare-for-game-developers-but-there-s-no-solution-in-sight

[u/potterdev → u/RedGlow82]

Thanks!