[Webkit-unassigned] [Bug 185245] New: [EME][GStreamer] Add a handler for GStreamer protection event

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=185245

            Bug ID: 185245
           Summary: [EME][GStreamer] Add a handler for GStreamer
                    protection event
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media Elements
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bandou.yacine at gmail.com
                CC: calvaris at igalia.com, olivier.blin at softathome.com

Qtdemux send the protection event when encountered a new PSSH box (encrypted content).

The Decryptor is moved from AppendPipeline to PlaybackPipeline (see https://bugs.webkit.org/show_bug.cgi?id=181855),
thus the protection event is no longer handled because the Decryptor is not in the same pipeline as qtdemux.

AppendPipeline: httpsrc-->qtdemux-->appsink
PlaybackPipeline: appsrc-->parser--> decryptor-->decoder-->sink

In order to handle the event we should dispatch the event from the AppendPipeline to the application.
For that we need this patch in GStreamer (gst-plugins-base) https://bugzilla.gnome.org/show_bug.cgi?id=785531

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