Bug 1762660 Comment 0 Edit History

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[Tracking Requested - why for this release]: Regression

Video has visible artifacts and distortions for the brief time after switching from another tab after landing patch from bug #1758605. It is also worth to notice that when you switch to video, it starts to play with delay. 

Regression range pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=1fd694e26ee5eaefed65f75974bd6e8a5001a1cf&tochange=88a481adf83070d1cdcc2bb074f6545b5dfe97e7

mozillaregression-GUI points that regression is caused by:
Narrowed integration regression window from [2fe7954f, 88a481ad] (3 builds) to [1fd694e2, 88a481ad] (2 builds) (~1 steps left)
Found commit message:
Bug 1758605 - Fix MediaCapabilities not detecting hardware support for certain H264 profiles. r=alwu
Added two missing flags to H264::CreateExtraData that are required to parse the avcC box correctly.

Differential Revision:
https://phabricator.services.mozilla.com/D140695

Steps to reproduce:
1. Open latest Mozilla Firefox Nighty 100.0a1 (2022-04-01) (64-bit)
2. Open https://coub.com/view/2htg0f
3. Play clip
4. Open new tab
5. Get back to tab with clip
6. Redo step 4 and 5 few times
7. Notice that video has visible artifacts and distortions for the brief time after switching from another tab

Observed results:
Video has visible artifacts and distortions for the brief time after switching from another tab

Expected results:
Video does not have visible artifacts and distortions.
[Tracking Requested - why for this release]: Regression

Video has visible artifacts and distortions for the brief time after switching from another tab after landing patch from bug #1758605. It is also worth to notice that when you switch to video, it starts to play with delay. 

Regression range pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=1fd694e26ee5eaefed65f75974bd6e8a5001a1cf&tochange=88a481adf83070d1cdcc2bb074f6545b5dfe97e7

mozillaregression-GUI points that regression is caused by:
Narrowed integration regression window from [2fe7954f, 88a481ad] (3 builds) to [1fd694e2, 88a481ad] (2 builds) (~1 steps left)
Found commit message:
Bug 1758605 - Fix MediaCapabilities not detecting hardware support for certain H264 profiles. r=alwu
Added two missing flags to H264::CreateExtraData that are required to parse the avcC box correctly.

Differential Revision:
https://phabricator.services.mozilla.com/D140695

Steps to reproduce:
1. Open latest Mozilla Firefox Nighty 100.0a1 (2022-04-01) (64-bit)
2. Open https://coub.com/view/2htg0f
3. Play clip
4. Open new tab
5. Get back to tab with clip
6. Redo step 4 and 5 few times
7. Notice that video has visible artifacts and distortions for the brief time after switching from another tab

Observed results:
Video has visible artifacts and distortions for the brief time after switching from another tab.

Expected results:
Video does not have visible artifacts and distortions.

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