1885474 - youtube video cut in half

Status: NEW

(GeckoView :: Media, defect)

Description

[mkshadoff]

User Agent: Mozilla/5.0 (Android 12; Mobile; rv:123.0) Gecko/123.0 Firefox/123.0

Steps to reproduce:

Happens randomly

Actual results:

Youtube video is cut in half showing only the top half in the player and and a black bar above it. When scrolling the video snaps up to fill the player then back down. Seems to be fixed by clicking on new video.

Expected results:

Video should be 100% visible the entire time

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:bclark, could you have a look please?

For more information, please visit BugBot documentation.

Comment 2

[Makoto Kato [:m_kato]]

What's device you can reproduce?

Comment 3

[mkshadoff]

This happens on my Samsung S10e

It's not entirely clear to me how to reproduce it but here are the steps I took

Click on a vertical video not a short, but a vertical video

Click on a square formatted video (like a song with an album cover)

Then click on a regular video

Then scroll down

This should cut the player in half

This was reproducible on version 123.1.0

Comment 4

[eclaudiu64]

Attachment: mobizen_20240409_205924.mp4

I can reproduce it, I've seen it happen with normal videos too.

Comment 5

[Makoto Kato [:m_kato]]

Although looking video of comment #1, "Youtube video is cut in half showing only the top half in the player and and a black bar above it." doesn't occur. When scrolling YouTube content, video element is resized from original.

Reporter, could you attach video that is reproduced? (And if possible, What's chrome's behavior and video)

Comment 6

[mkshadoff]

(In reply to Makoto Kato [:m_kato] from comment #5)

Although looking video of comment #1, "Youtube video is cut in half showing only the top half in the player and and a black bar above it." doesn't occur. When scrolling YouTube content, video element is resized from original.

Reporter, could you attach video that is reproduced? (And if possible, What's chrome's behavior and video)

Can't seem to reproduce it on the current version of Firefox

Also the steps to reproduce in comment #3 are actually for Brave browser, I reported a similar issue on their forums and got confused.

Chrome seems to also have this behaviour, and it's reproducible in the same way as in comment #3, but I can't seem to reproduce it on the current version of Firefox anymore.

Comment 7

[mkshadoff]

(In reply to Makoto Kato [:m_kato] from comment #5)

Although looking video of comment #1, "Youtube video is cut in half showing only the top half in the player and and a black bar above it." doesn't occur. When scrolling YouTube content, video element is resized from original.

Reporter, could you attach video that is reproduced? (And if possible, What's chrome's behavior and video)

I tried one more time to reproduce it and it does reproduce after taking the steps in comment #3
I will attach the video of the bug in a few minutes. The screen sort of jumps and jitters around.

Comment 8

[mkshadoff]

Attachment: Video of bug (Warning for Photosensitive people)

This is a video of the bug. It was produced by watching a vertical video, scrolling up to compress the video in to a horizontal format and then clicking on a horizontal video

this seems to trick the player in to displaying it like a vertical video so it cuts off the bottom of the video.

I added the warning for photosensitive people in the title because the video sort of jumps back and forth around the screen.