[Webkit-unassigned] [Bug 232860] [GStreamer] Won't play media and video in GtkOffscreenWindow

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=232860

--- Comment #6 from Liang-jie Lee <s930054123yaoyao at gmail.com> ---
Comment on attachment 467047
  --> https://bugs.webkit.org/attachment.cgi?id=467047
GST log

Hi Po Lu and the Webkit developers,

TL;DR, I tried to reproduce the issue and the attachment is my gst.log.

Environment: Debian 10, webkit-2.38.4, Emacs 30.0.50

Steps to reproduce: (Since I know nothing about webkit and Emacs internal, bear with me that I might be too verbose here)

For the webkit part, this is how I compiled the library:
1. wget https://webkitgtk.org/releases/webkitgtk-2.38.4.tar.xz
2. tar -xvf webkitgtk-2.38.4.tar.xz && cd webkitgtk-2.38.4
3. cmake -DPORT=GTK -DCMAKE_BUILD_TYPE=RelWithDebInfo -DENABLE_JOURNALD_LOG=ON -GNinja
4. ninja && sudo ninja install

For the Emacs part:
1. Compile Emacs with xwidget support (e.g. ./configure --with-xwidget)
2. Start Emacs with GST log (e.g. GST_DEBUG="3,webkit*:6" GST_DEBUG_FILE="$HOME/gst.log" GST_DEBUG_NO_COLOR=1 WEBKIT_DISABLE_SANDBOX_THIS_IS_DANGEROUS=1 emacs)
3. M-x xwidget-webkit-browse-url, and visit https://yotube.com
4. Click some videos and the video playback is shown. But no video is played.

Thanks.

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