Open Bug 1565493 Opened 5 years ago Updated 2 years ago

Jumpy seekbar on http://play.dogmazic.net

Categories

(Core :: Audio/Video, defect, P3)

defect

Tracking

()

Tracking Status
firefox-esr68 --- affected
firefox68 --- affected
firefox69 --- affected
firefox70 --- affected

People

(Reporter: atrif, Unassigned)

Details

Attachments

(1 file)

Attached video jumpy_seekbar.mp4

Affected versions

  • Firefox 68.0esr (20190705221915)
  • Firefox 68.0 (20190705220548)
  • Firefox 69.0b4 (20190712011116)
  • Firefox 70.0a1 (20190711230342)

Affected platforms

  • Ubuntu 18.04
  • macOS 10.14
  • Windows 10x64
  • Windows 7x64

Steps to reproduce

  1. Launch Firefox and go to http://play.dogmazic.net/.
  2. Play a random song and click on the bottom blue seekbar several times to change position.
  3. Observe the bottom blue seekbar.

Expected result

  • The seekbar position is changed and no visual glitches appear.

Actual result

  • Seekbar has constant visual jumps.

Regression Range

  • Reproducible with Firefox 63.0a1 (20180805231147). I will search for one ASAP.

Additional Notes

  • The issue is reproducible on Ubuntu 18.04 only when maximized for me.
  • Attached a screen recording with the issue.
Has Regression Range: --- → no
Has STR: --- → yes

After some testing on my Mac I was able to repro. But it is very subttle for me. My guess is that this is not caused by playback, but by their code which calculates how much the blue progress bar needs to get filled.

Priority: -- → P3

Hello!
I tried finding a regression range but the issue is reproducible way back to Firefox 6.0a1 (2011-05-05) which is the last build that can play the songs. This being said it's safe to say that this is not a regression or maybe is some site related change. Updating the flags accordingly. Thank you!

Has Regression Range: no → ---
Severity: normal → S3
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