Error replay videos from Kaltura in Firefox

[voxik]

During replay of videos provided by Kaltura, the player stops with error. Running Firefox with MOZ_LOG="FFmpegVideo:5 GMP:5", there is reported the following error as identified by Fedora FF maintainer in the rhbz#2279849:

[libopenh264 @ 0x7fc27a47c000] [OpenH264] this = 0x0x7fc26878f000, Error:DecodeCurrentAccessUnit()::::::PrefetchPic ERROR, pSps->iNumRefFrames:5.
[libopenh264 @ 0x7fc27a47c000] DecodeFrame failed

I am observing the issues on internal resources, so I have to apologize in advance that I won't share better reproducer.

$ rpm -q firefox
firefox-125.0.3-2.fc41.x86_64

$ rpm -q openh264
openh264-2.4.0-2.fc40.x86_64

CC @stransky

[mcatanzaro]

Here is a public reproducer:

https://corp.kaltura.com/video-collaboration-communication/enterprise-video-portal/

Of course, this website might change in the future. But it reproduces the problem today.

[voxik]

@mcatanzaro what version of openh264 do you have installed? Because I have just upgraded to openh264-0:2.4.1-2.fc41.x86_64 and it seems things might be better (although that might be just pure luck)

[voxik]

Maybe you might try with https://codecs.fedoraproject.org/openh264/41/

[mcatanzaro]

Wow you're right, I have 2.4.0-2.fc40 (the latest version for F40) and it's definitely fixed by 2.4.1-2.fc41. I think this should be closed. It's a downstream problem now, to update F40.

That means this bug must have been fixed by 4f01c15 because there are only two significant commits between the upstream 2.4.0 and 2.4.1, and the other one fd66e67 is already included in the downstream 2.4.0-2.fc40.

[voxik]

Wow you're right, I have 2.4.0-2.fc40 (the latest version for F40) and it's definitely fixed by 2.4.1-2.fc41. I think this should be closed. It's a downstream problem now, to update F40.

I have reassigned the aforementioned BZ to openh264 component.

But I'd also like to hear confirmation from maintainers that the commit above is really the one