[Webkit-unassigned] [Bug 74986] New: GStreamer-WARNING **: wrong STREAM_LOCK count 0 after changing HTML5 video.src

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=74986

           Summary: GStreamer-WARNING **: wrong STREAM_LOCK count 0 after
                    changing HTML5 video.src
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jderose at novacut.com


I'm using WebKitGtk (with PyGI and Python3, although my hunch is that's irrelevant) for a video browser.

Playback using the <video> element works awesome, but when I switch from one video to the next by changing the video.src from the DOM with JavaScript, I get this error in the terminal:

GStreamer-WARNING **: wrong STREAM_LOCK count 0

Once this happens, the app freezes up. The next video doesn't play, and I can't do anything... not even close the app. After the timeout, I can force quite.

Haven't yet spotted a pattern to this. It doesn't happen every time... sometimes I can play, say 5 videos or so before this happens.

Regardless, hats off to everyone who has worked on the WebKitGtk GStreamer integration... the performance is incredible.  I can play 50mbit/s 1080p video from a 5D Mark II perfectly smoothly, yet have the rich layout and friendly web-metaphores available with WebKit!  My UI designer is happy! :)

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