[webkit-changes] [WebKit/WebKit] d9e673: [Gstreamer][WebRTC] webrtc/video-disabled-black.ht...

[Philippe Normand]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: d9e6730c373fca89a0a9a11c457125805c749470
      https://github.com/WebKit/WebKit/commit/d9e6730c373fca89a0a9a11c457125805c749470
  Author: Philippe Normand <philn at igalia.com>
  Date:   2023-08-04 (Fri, 04 Aug 2023)

  Changed paths:
    M LayoutTests/platform/glib/TestExpectations
    M Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp
    M Source/WebCore/platform/mediastream/gstreamer/GStreamerMediaStreamSource.cpp

  Log Message:
  -----------
  [Gstreamer][WebRTC] webrtc/video-disabled-black.html fails
https://bugs.webkit.org/show_bug.cgi?id=254212
<rdar://problem/107046108>

Reviewed by Xabier Rodriguez-Calvar.

When disabling an incoming WebRTC track the mediastreamsrc now updates and propagates the
corresponding GstStream. This allows decodebin3 to properly reconfigure itself, by getting rid of
the decode chain (the disabled stream is not encoded).

This patch also disables the `parse-streams` property on urisourcebin for MSE and MediaStreams, it's
needed mostly for buffering adaptivedemux-based streams anyway. Parsing will then be done
downstream, by decodebin3, which also simplifies input stream reconfigurations that are now managed
internally by decodebin3.

* LayoutTests/platform/glib/TestExpectations:
* Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp:
(WebCore::MediaPlayerPrivateGStreamer::configureElement):
* Source/WebCore/platform/mediastream/gstreamer/GStreamerMediaStreamSource.cpp:
(webkitMediaStreamNew):
(webkitMediaStreamSrcPostStreamCollection):

Canonical link: https://commits.webkit.org/266589@main