Insert a VLC video into a PowerPoint

No need for another software, you can do it with VLC: Everything that is playable by VLC is transcodable.

Ok, great, I succeeded with VLC, thank you very much for your help.
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Anything worth doing is worth doing well.

Bonjour, j'ai le même problème mais je n'ai pas compris comment convertir la vidéo de VLC en MP4.

It first depends on the version of VLC you have (but it remains very similar in previous versions).
For the latest version (0.9.a):
- Menu "Media"
- Convert/Save
- Select the video file to transcode, then confirm (Convert/Save)
- In the "Output" section, check the File box, and enter the name of the output file (copy and paste the name of the input file by adding .mp4, for example)
- In the "Profile" section, under the "Encapsulation" tab, select MP4
- Still in the "Profile" section, under the "Video Codec" tab, check "Video", select MPEG-4, the desired bitrate, and the desired scale
- If audio is needed, go to the "Audio Codec" tab, check "Audio", select MPEG 4 Audio, the desired bitrate, and the number of channels
- That's it, confirm by clicking on "Save" (which curiously hasn't been translated like some other buttons and menus)

I'm not sure about the codecs, but if I remember correctly, that's it.

Thank you so much Bizu, it works, it's crazy
I can never thank you enough, you saved my presentation
I owe you my good grade!