[Webkit-unassigned] [Bug 229611] MediaRecorder with canvas captureStream() produces blank video

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=229611

Alexander Khovansky <alex at khovansky.me> changed:

           What    |Removed                     |Added
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                 CC|                            |alex at khovansky.me

--- Comment #2 from Alexander Khovansky <alex at khovansky.me> ---
We ran into the same problem (except with a bit more erratic behavior) when using a canvas for realtime video modification.
It looks like it's not MediaRecorder specific but rather captureStream producing a bad stream.

Here's a codepen that demonstrates the issue:
https://codepen.io/alx-khovansky/pen/KKqgeNw

It has a video source that is rendered to a canvas, which is then rendered to a different video element using captureStream. Works in Safari 14 but not in TP.

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