Video block: missing features compared to classic editor

[benoitchantre]

Describe the bug
When we add a self hosted videos with the classic editor, we can set many attributes. that are not available with the Gutenberg video block

Missing features:

• alternate sources (issue Video Block: alternate sources such as ogv and webm file formats #9457)
• subtitles (issue Video Block: Subtitles #7673)
• poster image (Issue Support of poster image for video block is missing #4837, PR Video block: Add poster image #9335)
• preload (auto/metadata/none) (PR Support 'preload' attribute for Video Block #7929)
• autoplay (PR Add video block attributes: Autoplay, Controls, Loop, Muted #7672)
• loop (PR Add video block attributes: Autoplay, Controls, Loop, Muted #7672)

edited by Soean

Additional context

• Gutenberg 3.1

[danielbachhuber]

Related #6581

We'll need to solve #7322 (comment) before we can get this in.

[Soean]

I edited the issue with the PR/Issue numbers. Autoplay and Loop get merged and there is now a PR for Preload. I will start to work on the other features in the next days...

[Soean]

Most features are merged now, for the missing ones we have separate issues, so im closing this.

• alternate sources (issue Video Block: alternate sources such as ogv and webm file formats #9457)
• subtitles (issue Video Block: Subtitles #7673)