1761907 - [Flatpak] Playback of videos on Facebook is very choppy

Status: RESOLVED DUPLICATE of bug 1751322

(Core :: Widget: Gtk, defect)

Description

[Catalin Sasca, Desktop QA [:csasca]]

Attachment: flatpak choppy video fb.webm

Affected versions

• Firefox 99.0 (Flatpak build)

Affected platforms

• Ubuntu 20.04

Steps to reproduce

1. Install Flatpak build and launch it
2. Access Facebook and login with valid credentials
3. Search a video and play it

Expected result

• The video runs fluently

Actual result

• The video is very choppy

Regression range

• Will see for a regression

Additional notes

• The issue can be seen in the attachment
• Other regular builds or snap builds are not affected by this, only flatpak

Comment 1

[Jan Horak [:jhorak]]

It seems that you need to install org.freedesktop.Platform.ffmpeg-full from flathub to pull accelerated codecs. Looks like Firefox is using openh264 for decoding.

Comment 3

[Jeff Muizelaar [:jrmuizel]]

Can you get a profile with the Media preset during video playback?

Comment 4

[Catalin Sasca, Desktop QA [:csasca]]

Attachment: fx unusable profiler.webm

Hey Jeff, tried capturing with media, but as soon as ending the capture, Firefox will become unusable, and cannot do anything but to close the session and restart Firefox. Tried doing this multiple times and everytime the session will get unusable.