[Webkit-unassigned] [Bug 199563] New: [GStreamer] Ephy Tech Preview lost support for MP4 video

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=199563

            Bug ID: 199563
           Summary: [GStreamer] Ephy Tech Preview lost support for MP4
                    video
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at igalia.com

Ephy Tech Preview has been unable to play MP4 video for about 2-3 weeks now. I thought this was because we had just upgraded from freedesktop-sdk 18.08 to 19.08beta, or perhaps because we had upgraded to a new version of fdkaac. But playing H.264 video using gst-inspect-1.0 in the runtime works perfectly fine, so it appears the issue may be specific to WebKit (?). We upgraded from 2.25.1 to 2.25.2 around the same time, so that is another possible suspect.

Really easy test is to visit https://www.youtube.com/html5 and note that the H.264 and MSE & H.264 boxes are both red.

Upstream bug report (now closed) was: https://gitlab.com/freedesktop-sdk/freedesktop-sdk/issues/824

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