[Webkit-unassigned] [Bug 156186] New: [GTK] [GStreamer] Eats all the CPU or crashes on ted.com

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=156186

            Bug ID: 156186
           Summary: [GTK] [GStreamer] Eats all the CPU or crashes on
                    ted.com
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: clopez at igalia.com
                CC: bugs-noreply at webkitgtk.org, pnormand at igalia.com

I just noticed that trying to play any of the videos from https://www.ted.com either causes the WebProcess to use the 100% of the CPU meanwhile the video only shows a black square (with 2.12.0 and GStreamer 1.8.x) or a crash (with trunk and GStreamer 1.6.x).

On the console the following errors are logged:

(WebKitWebProcess:22541): GStreamer-CRITICAL **: 
Trying to dispose element appsrc1, but it is in READY instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.


(WebKitWebProcess:22541): GStreamer-CRITICAL **: 
Trying to dispose element webkitwebsrc0, but it is in READY instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.


Examples of URLs to reproduce this:

http://www.ted.com/talks/james_b_glattfelder_who_controls_the_world
http://www.ted.com/talks/charmian_gooch_meet_global_corruption_s_hidden_players

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