fix: video having no duration (with ts-ebml dependency from GitHub)

[marob]

When recording the presentation, the resulting video is corrupted as the duration is not/incorrectly detected by video players.

This issue explains the problem and gives a solution: we have to wrap the blob in getSeekableBlob function.

An important thing to note is that getSeekableBlob function requires EBML as dependency.

I have developed several PR solving the problem and using different ways to import EBML as each of them have pros and cons.

This PR imports ts-ebml dependency from GitHub URL. It's using a fork of the original repository as it's using code from a PR that is not merged yet

Cons: we use GitHub dependency (not a good practice?) and from a fork

See other PRs:

• fix: video having no duration (with CDN) #489
• fix: video having no duration (with recordrtc dependency from GitHub) #490

[antfu]

If ts-ebml is no longer actively maintained, I am wonder if anyone would like to make a fork with the fix and publish it to npm. That way would be better to install from GitHub.

[antfu]

Thanks but I'd prefer to have this fixed upstream.