[Webkit-unassigned] [Bug 190050] New: [GStreamer][MSE] Replay hits an assertion

Thu Sep 27 13:15:22 PDT 2018

https://bugs.webkit.org/show_bug.cgi?id=190050

            Bug ID: 190050
           Summary: [GStreamer][MSE] Replay hits an assertion
           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: aboya at igalia.com
                CC: bugs-noreply at webkitgtk.org

How to reproduce:

1. Have a simple <video> with a MSE source.
2. Play it.
3. Wait for it to finish.
4. Click the play button in the media player controls.

ASSERT(!m_private);
#0  WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:255
#1  0x00007fd7f9da9d57 in WebCore::MediaSource::setPrivateAndOpen (this=0x7fd763c152b0, mediaSourcePrivate=...) at ../../Source/WebCore/Modules/mediasource/MediaSource.cpp:106
#2  0x00007fd7fb77060f in WebCore::MediaSourceGStreamer::open (mediaSource=..., playerPrivate=...) at ../../Source/WebCore/platform/graphics/gstreamer/mse/MediaSourceGStreamer.cpp:55
#3  0x00007fd7fb766b2a in WebCore::MediaPlayerPrivateGStreamerMSE::sourceSetup (this=0x7fd7893c2000, sourceElement=0xf744d0)
    at ../../Source/WebCore/platform/graphics/gstreamer/mse/MediaPlayerPrivateGStreamerMSE.cpp:484
#4  0x00007fd7fb73241a in WebCore::MediaPlayerPrivateGStreamer::sourceSetupCallback (player=0x7fd7893c2000, sourceElement=0xf744d0)
    at ../../Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp:1723
#5  0x00007fd7dd43503e in ffi_call_unix64 () at ../src/x86/unix64.S:76
#6  0x00007fd7dd4349ff in ffi_call () at ../src/x86/ffi64.c:525
#7  0x00007fd7e438cf39 in g_cclosure_marshal_generic () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gclosure.c:1490
#8  0x00007fd7e438c76d in g_closure_invoke () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gclosure.c:804
#9  0x00007fd7e439eb43 in signal_emit_unlocked_R () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gsignal.c:3635
#10 0x00007fd7e43a7a1e in g_signal_emit_valist () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gsignal.c:3391
#11 0x00007fd7e43a80c2 in g_signal_emit () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gsignal.c:3447
#12 0x00007fd75d4abd85 in notify_source_cb (uridecodebin=0x155eef0, pspec=0x15065f0, group=0x15177c8) at ../subprojects/gst-plugins-base/gst/playback/gstplaybin2.c:5164
#13 0x00007fd7e438c76d in g_closure_invoke () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gclosure.c:804
#14 0x00007fd7e439eb43 in signal_emit_unlocked_R () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gsignal.c:3635
#15 0x00007fd7e43a7a1e in g_signal_emit_valist () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gsignal.c:3391
#16 0x00007fd7e43a80c2 in g_signal_emit () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gsignal.c:3447
#17 0x00007fd7e4390a94 in g_object_dispatch_properties_changed () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gobject.c:1080
#18 0x00007fd7e6994b29 in gst_object_dispatch_properties_changed (object=0x155eef0, n_pspecs=1, pspecs=0x7ffd007bc6c8) at ../subprojects/gstreamer/gst/gstobject.c:430
#19 0x00007fd7e4392deb in g_object_notify_by_spec_internal () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gobject.c:1173
#20 g_object_notify () at /webkit/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/gobject/gobject.c:1221
#21 0x00007fd75d485a13 in setup_source (decoder=0x155eef0) at ../subprojects/gst-plugins-base/gst/playback/gsturidecodebin.c:2200
#22 0x00007fd75d487b60 in gst_uri_decode_bin_change_state (element=0x155eef0, transition=GST_STATE_CHANGE_READY_TO_PAUSED) at ../subprojects/gst-plugins-base/gst/playback/gsturidecodebin.c:2812
#23 0x00007fd7e69ce36d in gst_element_change_state (element=0x155eef0, transition=GST_STATE_CHANGE_READY_TO_PAUSED) at ../subprojects/gstreamer/gst/gstelement.c:2953
#24 0x00007fd7e69ce0fd in gst_element_set_state_func (element=0x155eef0, state=GST_STATE_PAUSED) at ../subprojects/gstreamer/gst/gstelement.c:2907
#25 0x00007fd7e69cdcf9 in gst_element_set_state (element=0x155eef0, state=GST_STATE_PAUSED) at ../subprojects/gstreamer/gst/gstelement.c:2808
#26 0x00007fd75d4acaec in activate_group (playbin=0x1517340, group=0x15177c8, target=GST_STATE_PAUSED) at ../subprojects/gst-plugins-base/gst/playback/gstplaybin2.c:5406
#27 0x00007fd75d4ad958 in setup_next_source (playbin=0x1517340, target=GST_STATE_PAUSED) at ../subprojects/gst-plugins-base/gst/playback/gstplaybin2.c:5629
#28 0x00007fd75d4ae0b5 in gst_play_bin_change_state (element=0x1517340, transition=GST_STATE_CHANGE_READY_TO_PAUSED) at ../subprojects/gst-plugins-base/gst/playback/gstplaybin2.c:5759
#29 0x00007fd7e69ce36d in gst_element_change_state (element=0x1517340, transition=GST_STATE_CHANGE_READY_TO_PAUSED) at ../subprojects/gstreamer/gst/gstelement.c:2953
#30 0x00007fd7e69ce0fd in gst_element_set_state_func (element=0x1517340, state=GST_STATE_PLAYING) at ../subprojects/gstreamer/gst/gstelement.c:2907
#31 0x00007fd7e69cdcf9 in gst_element_set_state (element=0x1517340, state=GST_STATE_PLAYING) at ../subprojects/gstreamer/gst/gstelement.c:2808
#32 0x00007fd7fb72b29e in WebCore::MediaPlayerPrivateGStreamer::changePipelineState (this=0x7fd7893c2000, newState=GST_STATE_PLAYING)
    at ../../Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp:402
#33 0x00007fd7fb76507e in WebCore::MediaPlayerPrivateGStreamerMSE::changePipelineState (this=0x7fd7893c2000, newState=GST_STATE_PLAYING)
    at ../../Source/WebCore/platform/graphics/gstreamer/mse/MediaPlayerPrivateGStreamerMSE.cpp:216
#34 0x00007fd7fb72b42c in WebCore::MediaPlayerPrivateGStreamer::play (this=0x7fd7893c2000) at ../../Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp:439
#35 0x00007fd7fad6178f in WebCore::MediaPlayer::play (this=0x7fd763c239c0) at ../../Source/WebCore/platform/graphics/MediaPlayer.cpp:548
#36 0x00007fd7fa698e94 in WebCore::HTMLMediaElement::updatePlayState (this=0x7fd763400778, updateState=WebCore::HTMLMediaElement::UpdateState::Synchronously)
    at ../../Source/WebCore/html/HTMLMediaElement.cpp:5413
#37 0x00007fd7fa6928a8 in WebCore::HTMLMediaElement::playInternal (this=0x7fd763400778) at ../../Source/WebCore/html/HTMLMediaElement.cpp:3619
#38 0x00007fd7fa6925a0 in WebCore::HTMLMediaElement::play (this=0x7fd763400778, promise=...) at ../../Source/WebCore/html/HTMLMediaElement.cpp:3526
#39 0x00007fd7f94f349d in WebCore::jsHTMLMediaElementPrototypeFunctionPlayBody (state=0x7ffd007bce80, castedThis=0x7fd788160040, promise=..., throwScope=...)
    at DerivedSources/WebCore/JSHTMLMediaElement.cpp:1532
#40 0x00007fd7f94fc276 in WebCore::IDLOperationReturningPromise<WebCore::JSHTMLMediaElement>::<lambda(JSC::ExecState&, WTF::Ref<WebCore::DeferredPromise, WTF::DumbPtrTraits<WebCore::DeferredPromise> >&&)>::operator()(JSC::ExecState &, WTF::Ref<WebCore::DeferredPromise, WTF::DumbPtrTraits<WebCore::DeferredPromise> > &&) const (this=0x7ffd007bcda0, state=..., promise=...)
    at ../../Source/WebCore/bindings/js/JSDOMOperationReturningPromise.h:52

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