Media runtime sometimes not shown (shown as `0m 0s`)

[stephendonner]

Description

Media runtime sometimes not shown (shown as 0m 0s)

Found while testing https://github.com/brave/brave-browser/issues/32585

Steps to reproduce

1. install 1.70.41
2. launch Brave
3. load https://www.youtube.com/watch?v=4iNMyilmDfg
4. restart Brave (to pick up Griffin seeds)
5. load https://www.youtube.com/watch?v=4iNMyilmDfg again
6. click on the music note icon to Add to Playlist

Actual result

Runtime is shown as 0m 0s

Expected result

Should show the media's hours minutes seconds runtime

Reproduces how often

Easily reproduced

Brave version (brave://version info)

Brave | 1.70.41 Chromium: 127.0.6533.88 (Official Build) nightly (x86_64)
-- | --
Revision | 9303bae9fe07bc2ec7c0cdef139e87304b2d6c96
OS | macOS Version 11.7.10 (Build 20G1427)

Channel information

• [ ] release (stable)
• [X] beta
• [X] nightly

Reproducibility

• [X] with Brave Shields disabled
• [X] with Brave Rewards disabled
• [ ] in the latest version of Chrome

Miscellaneous information

@aguscruiz @sangwoo108 @szilardszaloki @rebron @brave/qa-team

[MadhaviSeelam]

Reproduced the issue with twitch.tv clips https://www.twitch.tv/mrskilted/clip/ExcitedDistinctGarageANELE-HE82zvRFIxiX8Xkj

[sangwoo108]

Yeah, sometimes we can't get the duration properly at the point of caching. I was thinking of updating it when the video is played.

[szilardszaloki]

Hey all, Just a heads-up that we won't have to deal with this once we're on the MediaSession API.