[WebKit-devel] [kdelibs] [Bug 314789] New: No sound when playing html5 video

LuRan hephooey_dev at fastmail.fm
Sat Feb 9 19:59:06 UTC 2013


https://bugs.kde.org/show_bug.cgi?id=314789

            Bug ID: 314789
           Summary: No sound when playing html5 video
    Classification: Unclassified
           Product: kdelibs
           Version: Git
          Platform: Compiled Sources
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: kdewebkit
          Assignee: webkit-devel at kde.org
          Reporter: hephooey_dev at fastmail.fm

This is a very strange bug: At least since last friday, some change in either
the kde (kdelibs is 4.10 branch, others are master) or qt (4.8 branch) or the
qtwebkit (2.3 branch) git made the sound disappear when I watch html5 video in
either kwebkitpart or rekonq. It does not seems to be a bug in Phonon since
notification sound and amarok work fine. The sound is however fine when I use
QtTestBrowser. I disabled the internal phonon comes with Qt and compiled phonon
with vlc and gstream backend from the git. I am using pulseaudio and there is
no new client/source show up in the pacmd output when playing html5 video. The
files downloaded by kio seems fine, I can play them using mplayer. It seems
something go wrong when passing the kio downloaded file to playing in qtwebkit.

Reproducible: Always

Steps to Reproduce:
1. Open any html youtube video,
http://www.youtube.com/watch?v=00C_T7lWPbw&list=SP2D1942A4688E9D63 for example
in rekonq or kwebkitpart
2.
3.
Actual Results:  
The video plays but no sound

Expected Results:  
Sound

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