1717663 - [Bug] video is green and pink

Status: REOPENED

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

Description

[Kevin Brosnan [Ex-Mozilla]]

From github: https://github.com/mozilla-mobile/fenix/issues/20121.

This is an issue which was initially reported on https://github.com/webcompat/web-bugs/issues/75573
It is reproducible on Firefox Nightly 91 on Android,
but not on Firefox Nightly 91 on macOS.

Steps to reproduce

1. Go to https://noyb.eu/files/videos/cookie.mp4

Expected behavior

Video plays

Actual behavior

The video is garbled with pink and green squares.

Device information

• Device vendor / model and Android version: Pixel 2
• Firefox for Android version: 91.0a1 Build 2015817683

Change performed by the Move to Bugzilla add-on.

Comment 1

[Kevin Brosnan [Ex-Mozilla]]

VLC's warnings on loading the video.

mp4 warning: unknown box type cTIM (incompletely loaded)
mp4 warning: unknown box type cTSC (incompletely loaded)
mp4 warning: unknown box type cTSZ (incompletely loaded)
mp4 warning: Unknown uuid type box
mp4 warning: elst box found
mp4 warning: STTS table of 1 entries
mp4 warning: elst box found
mp4 warning: STTS table of 1 entries
mp4 warning: CTTS table of 1388 entries

Comment 2

[Alastor Wu [:alwu]]

I can reproduce that on the latest Nightly on my pixel 5. Per comment1, that might indicate that we parse the wrong width and height for video and allocate incorrect graphic surface?
John, would you mind to take a look on this one?
Thank you.

Comment 3

[John Lin [:jhlin][:jolin]]

Also pushed the video to an Android phone then used a video player app to play it and got a similar result. It looks like a system decoder issue and can not be fixed from our end.

Comment 4

[Alastor Wu [:alwu]]

But that video play well on Chrome and other chromium based browsers, is it possible that we and that video player app both use the wrong way to config the system decoder?

Comment 5

[John Lin [:jhlin][:jolin]]

(In reply to Alastor Wu [:alwu] from comment #4)

But that video play well on Chrome and other chromium based browsers, is it possible that we and that video player app both use the wrong way to config the system decoder?

Actually, Chrome also shows the same issue on my Pixel 3, which I forgot to mention. Does it play well on your Pixel 5 using Chrome? If so, could you please paste the version info from 'chrome://version'? Thanks!

Comment 6

[Alastor Wu [:alwu]]

Attachment: chrome://version

Does it play well on your Pixel 5 using Chrome?

Yes, that video can be played well on Chrome and other Chrominum based browsers (eg. Brave, Opera).

Comment 7

[Alastor Wu [:alwu]]

Reopen this bug because it works on other browsers on my Pixel5.