Closed Bug 1801610 Opened 1 year ago Closed 1 year ago

Seeking a video element with the loop attribute set causes seeking to not work

Categories

(Core :: Audio/Video: Playback, defect, P1)

Firefox 108
defect

Tracking

()

RESOLVED DUPLICATE of bug 1800233
Tracking Status
firefox-esr102 --- unaffected
firefox107 --- unaffected
firefox108 + fixed
firefox109 + fixed

People

(Reporter: aterial, Unassigned)

References

(Regression)

Details

(Keywords: regression)

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0

Steps to reproduce:

Here's a JSFiddle indicating the issue https://jsfiddle.net/k6aq8ezj/5/
There are 2 <video> elements in that jsfiddle, one has the loop attribute set, and the other does not. On the <video> element with the loop attribute set, seeking does not work correctly. When you seek to any point in the video, the playback position gets set to 0 (regardless of what you clicked), audio playback stops, but the playback position seems to keep working. After the playback position moves up to where you clicked, audio playback resumes.

I have tested this on a fresh firefox profile to make sure it was not any extensions i was running, and it did indeed happen on a fresh profile.

Actual results:

I play the video element with ID 'bugged', I click to seek the video to 30 seconds, but the playback indicator goes to 0, audio playback stops, the video appears to play but nothing is heard. Once the playback position goes to where i clicked, audio playback resumes

Expected results:

Seeking to 30 seconds should immediately begin playback of the audio at 30 seconds (if the media is loaded), just like the video without the loop attribute

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Component: Untriaged → Audio/Video: Playback
Product: Firefox → Core

Thanks for the test case. Testing in Nightly 109 I don't have problems seeking the first audio track. I can skip around multiple times and the audio seeks to the proper place. Testing on Beta 108 however I can reproduce. Will try to find a regression range.

[Tracking Requested - why for this release]:
Issue with seeking and playback of audio tracks.

Seamless looping regression. Alastor, this is up on Beta currently, can you take a look?

Status: UNCONFIRMED → NEW
Ever confirmed: true
Flags: needinfo?(alwu)
Regressed by: 1262276
Severity: -- → S1
Priority: -- → P1
Priority: P2 → P1
Priority: P2 → P1

Set release status flags based on info from the regressing bug 1262276

I think it's bug 1800233 and I can't reproduce it on the latest Nightly.

Status: NEW → RESOLVED
Closed: 1 year ago
Duplicate of bug: 1800233
Flags: needinfo?(alwu)
Resolution: --- → DUPLICATE
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