607873 - <video> element seek is inaccurate

Status: VERIFIED DUPLICATE of bug 626273

(Core :: Audio/Video, defect)

Description

[Silvia Pfeiffer]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.6) Gecko/20100625 Firefox/3.6.6
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.6) Gecko/20100625 Firefox/3.6.6

When I seek to a time, e.g. video.currentTime = 20, I never end up at that exact time, but rather a little earlier, e.g. video.currentTime = 19.999000549316406. This is visually perceivable by the user through an irritating display of "19" in the user interface rather than the expected "20".

Opera and Google Chrome report the currentTime accurately and their controls display agrees with that.

(previously reported as a comment on bug 587465)

Reproducible: Always

Steps to Reproduce:
1. use a <video> element
2. do a seek in JS: video.currentTime=20;
3. check video.currentTime and the user interface
Actual Results:  
currentTime is smaller than 20

Expected Results:  
currentTime is exactly 20

Comment 1

[Matthew Gregan [:kinetik]]

This is mostly fixed by bug 626273, I think.

Comment 2

[Chris Pearce [:cpearce (Not reading bugmail)]]

WFM. :)

Silvia: would you be able to test if this is fixed in a current nightly and let is know please? Thanks!

Comment 3

[Silvia Pfeiffer]

Yup, I can confirm it works. Thanks for the awesome effort - getting this stuff right is not trivial.

Comment 4

[Chris Pearce [:cpearce (Not reading bugmail)]]

Great, thanks Silvia.