1343487 - WebM video seekbar is displayed like in a live video

Status: RESOLVED WORKSFORME

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

Description

[Emil Ghitta, QA [:emilghitta]]

Attachment: Seekbar issue

[Affected versions]:
Latest Nightly 54.0a1 
Firefox 45.8.0 
Firefox 52.0b9 
Firefox 51.0.1 

[Affected platforms]:
Ubuntu 14.04 x86
Windows 10 x64
Mac 10.11.6

[Unaffected platforms]:
Windows 7 x64.

[Steps to reproduce]:
1.Launch mozilla firefox 45.8.0.
2.Access the http://video.webmfiles.org/big-buck-bunny_trailer.webm weblink.
3.Observe that the seekbar is displayed like in a live video.

[Expected result]:
The seekbar is displayed properly.

[Actual result]:
The seekbar is displayed like in a live video.

[Regression range]:
I didn’t manage to discover the regression range for this issue, but i will come back to this as soon as possible.

[Additional information]:
Please note that you may have to refresh the webpage in order to reproduce this issue

Comment 1

[Justin [:JW_SoftvisionQA]]

This issue goes back as far as FF 13.0 (Maybe even further but that is all I have locally on my machine).

Comment 2

[YF (Yang)]

I cannot reproduce it in Fx52.0, 45.7.0esr and 54.0a1 (2017-03-04) (32-bit) on Win10.

Comment 3

[Ray Lin[:ralin]]

I cannot make the video display as a live video, always get total time after refresh. 

Changing component back to audo/video playback as video controls' display varies according to what (meta)data it got, I guess total time should not be "unknown" to video controls in this case.

Comment 4

[Emil Ghitta, QA [:emilghitta]]

This seems to be an old regression:
Last good revision: a43c3080f472 (2011-08-02)
First bad revision: 3735fb1cd5ef (2011-08-03)
Pushlog:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=a43c3080f472&tochange=3735fb1cd5ef

Comment 5

[Ryan VanderMeulen [:RyanVM]]

Bug 619752 in that range looks relevant.

Comment 6

[Mike Taylor [:miketaylr]]

Given that this regression is so old, let's just treat it as a regular bug.

Comment 7

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

I'm guessing it is an issue with the webm file itself but the file is no longer available.

Comment 8

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Can you provide another WebM file that reproduces the bug?

Comment 9

[Emil Ghitta, QA [:emilghitta]]

It seems that I no longer reproduce this issue with other WebM files. I will mark this issue as WORKSFORME (feel free to change this if you encounter this issue).