[Webkit-unassigned] [Bug 194351] New: [GStreamer] Epiphany crash / freeze if playing embedded HTML5/MP4 videos

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=194351

            Bug ID: 194351
           Summary: [GStreamer] Epiphany crash / freeze if playing
                    embedded HTML5/MP4 videos
           Product: WebKit
           Version: Other
          Hardware: PC
               URL: https://wiki.gnome.org/Apps/Web
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: hschoepel at gmail.com
                CC: bugs-noreply at webkitgtk.org

Dear ladies & gentlemen,

I use Linux Gnome 3 Webbrowser "GNOME Web" (previously "Epiphany") and it's crashing every time i try to play an embedded html video. The only solution is to use the cli and kill the process by using kill -9. I was talking already to the Epiphany developer regarding this strange plugins behavior and i will fill another bug on WebKitGTK+ Bugzilla. 

Operating System: Debian Linux ( Sid )
Desktop Environment: Gnome 3
Epiphany Version: 3.30.3
Webkit Version: WebKitGTK+ 2.22.5
Gstreamer Version: https://paste.gnome.org/pnys7qf8x


Terminal output:

henrik at debian:~$ epiphany
Error scanning plugin /usr/lib/jvm/oracle-java8-jre-amd64/lib/amd64/libnpjp2.so, /usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/WebKitPluginProcess returned 11 exit status
** (WebKitWebProcess:28441): WARNING **: 19:08:44.386: WebKit wasn't able to find the GStreamer opengl plugin. Hardware-accelerated zero-copy video rendering can't be enabled without this plugin.
** (WebKitWebProcess:28441): WARNING **: 19:08:44.621: WebKit wasn't able to find the GStreamer opengl plugin. Hardware-accelerated zero-copy video rendering can't be enabled without this plugin.
** (WebKitWebProcess:28441): WARNING **: 19:08:45.105: WebKit wasn't able to find the GStreamer opengl plugin. Hardware-accelerated zero-copy video rendering can't be enabled without this plugin.
** (WebKitWebProcess:28441): WARNING **: 19:08:45.315: WebKit wasn't able to find the GStreamer opengl plugin. Hardware-accelerated zero-copy video rendering can't be enabled without this plugin.
^C


Example Test websites:
https://www.welt.de/politik/deutschland/article188362265/Weimar-Bundespraesident-Steinmeier-will-demokratischen-Patriotismus.html
https://www.welt.de/politik/ausland/article188356435/Donald-Tusk-Besonderer-Platz-in-der-Hoelle-fuer-Brexit-Befuerworter.html


Troubleshooting steps:

- check if plugins are enabled / disabled. The are by default set to "false"
gsettings get org.gnome.Epiphany.web:/org/gnome/epiphany/web/ enable-plugins
false

- Verified if other gstreamer plugins are needed to fix the Hardware-acceleration output: 
Apt-Cache search didn't provide any other useful packages. Installed packages are shown up in the link.

- Test on other websites:
Also happens on Youtube, Financial Times...


Best regards,
Henrik

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