[Webkit-unassigned] [Bug 259915] New: [WPE][Debug]: fast/mediastream/captureStream/canvas3d.html crases with error gst_sample_get_caps: assertion 'GST_IS_SAMPLE (sample)' failed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=259915

            Bug ID: 259915
           Summary: [WPE][Debug]:
                    fast/mediastream/captureStream/canvas3d.html crases
                    with error gst_sample_get_caps: assertion
                    'GST_IS_SAMPLE (sample)' failed
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dpino at igalia.com

https://build.webkit.org/results/WPE-Linux-64-bit-Debug-Tests/266663@main%20(6300)/fast/mediastream/captureStream/canvas3d-crash-log.txt

STDERR: (WPEWebProcess:76043): GStreamer-CRITICAL **: 18:47:01.803: gst_sample_get_caps: assertion 'GST_IS_SAMPLE (sample)' failed
STDERR: WPEWebProcess terminated (pid 76043) for reason: crash

Thread 1 (Thread 0x7fd586f62ec0 (LWP 76043)):
#0  g_logv (log_domain=0x7fd58d9529ae "GStreamer", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=<optimized out>) at ../glib/gmessages.c:1422
#1  0x00007fd58db05c53 in g_log (log_domain=log_domain at entry=0x7fd58d9529ae "GStreamer", log_level=log_level at entry=G_LOG_LEVEL_CRITICAL, format=format at entry=0x7fd58db69ff7 "%s: assertion '%s' failed") at ../glib/gmessages.c:1460
#2  0x00007fd58db06e6d in g_return_if_fail_warning (log_domain=log_domain at entry=0x7fd58d9529ae "GStreamer", pretty_function=pretty_function at entry=0x7fd58d977920 <__func__.8.lto_priv.35> "gst_sample_get_caps", expression=expression at entry=0x7fd58d975644 "GST_IS_SAMPLE (sample)") at ../glib/gmessages.c:2930
#3  0x00007fd58d911c26 in gst_sample_get_caps (sample=<optimized out>) at ../gst/gstsample.c:209
#4  gst_sample_get_caps (sample=<optimized out>) at ../gst/gstsample.c:207
#5  0x00007fd5a02e4b5e in WebCore::VideoFrameGStreamer::create(WTF::GRefPtr<_GstSample>&&, WebCore::FloatSize const&, WTF::MediaTime const&, WebCore::VideoFrameRotation, bool, std::optional<WebCore::VideoFrameTimeMetadata>&&, std::optional<WebCore::PlatformVideoColorSpace>&&) (sample=..., presentationSize=..., presentationTime=..., videoRotation=WebCore::VideoFrameRotation::None, videoMirrored=false, metadata=..., colorSpace=...) at /app/webkit/Source/WebCore/platform/graphics/gstreamer/VideoFrameGStreamer.cpp:222
#6  0x00007fd5a02d9edc in WebCore::MediaPlayerPrivateGStreamer::videoFrameForCurrentTime() (this=0x7fd57d561780) at /app/webkit/Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp:3870
#7  0x00007fd5a0137426 in WebCore::MediaPlayer::videoFrameForCurrentTime() (this=0x7fd57d129c60) at /app/webkit/Source/WebCore/platform/graphics/MediaPlayer.cpp:1144
#8  0x00007fd59e1c65c8 in operator()(WTF::RefPtr<WebCore::HTMLVideoElement, WTF::RawPtrTraits<WebCore::HTMLVideoElement>, WTF::DefaultRefDerefTraits<WebCore::HTMLVideoElement> >&) const (__closure=0x7ffcc8113cd0, video=...) at /app/webkit/Source/WebCore/Modules/webcodecs/WebCodecsVideoFrame.cpp:190

I think the issue might be that the `convertedSample` in https://searchfox.org/wubkat/source/Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp#3868 is not sample anymore.

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