[Bug 672401] New: [pulsesink] mute property can't be unset

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=672401
  GStreamer | gst-plugins-good | git

           Summary: [pulsesink] mute property can't be unset
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: leio at gentoo.org
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


gst-launch-0.10 playbin2 uri=file:///path/to/favorite/music
# Music plays ...

gst-launch-0.10 playbin2 uri=file:///path/to/favorite/music mute=TRUE
# Music plays but is muted as expected

gst-launch-0.10 playbin2 uri=file:///path/to/favorite/music
# Music is still muted, despite mute property default value supposed to being
FALSE

gst-launch-0.10 playbin2 uri=file:///path/to/favorite/music mute=FALSE
# Music STILL muted


Can only get it unmuted when letting it play and then workarounding it by
changing the mute for the per-application volume in PA enabled gnome sound
settings or pavucontrol.
alsasink is only muted in the above command sequence when mute=TRUE is
explicitly given (including when going through PA alsa-plugins hook to PA).

It feels like volume property is similarly wonky.

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