Title: [282944] branches/safari-612-branch/Source/WebCore
Revision
282944
Author
repst...@apple.com
Date
2021-09-22 22:14:32 -0700 (Wed, 22 Sep 2021)

Log Message

Cherry-pick r282774. rdar://problem/83429893

    [GPUP] Videos appear black but audio plays normally
    https://bugs.webkit.org/show_bug.cgi?id=230471
    <rdar://82121369>

    Reviewed by Youenn Fablet.

    For some videos, the media player (MediaPlayerPrivateAVFoundation) starts
    with the "MediaRenderingToContext" mode, and it switches to the "MediaRenderingToLayer"
    mode later. When the mode switch happens, we have to destroy the context
    video renderer before creating the video layer. Otherwise, we won't receive
    the notification regarding "readyForDisplay" key path, which drives the
    `firstVideoFrameAvailable` callback.

    `destroyContextVideoRenderer()` destroys the `m_videoOutput`, but it will
    be recreated by `createVideoLayer()`.

    Manually tested.

    * platform/graphics/avfoundation/MediaPlayerPrivateAVFoundation.cpp:
    (WebCore::MediaPlayerPrivateAVFoundation::setUpVideoRendering):

    git-svn-id: https://svn.webkit.org/repository/webkit/trunk@282774 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Modified Paths

Diff

Modified: branches/safari-612-branch/Source/WebCore/ChangeLog (282943 => 282944)


--- branches/safari-612-branch/Source/WebCore/ChangeLog	2021-09-23 05:14:29 UTC (rev 282943)
+++ branches/safari-612-branch/Source/WebCore/ChangeLog	2021-09-23 05:14:32 UTC (rev 282944)
@@ -1,5 +1,56 @@
 2021-09-22  Alan Coon  <alanc...@apple.com>
 
+        Cherry-pick r282774. rdar://problem/83429893
+
+    [GPUP] Videos appear black but audio plays normally
+    https://bugs.webkit.org/show_bug.cgi?id=230471
+    <rdar://82121369>
+    
+    Reviewed by Youenn Fablet.
+    
+    For some videos, the media player (MediaPlayerPrivateAVFoundation) starts
+    with the "MediaRenderingToContext" mode, and it switches to the "MediaRenderingToLayer"
+    mode later. When the mode switch happens, we have to destroy the context
+    video renderer before creating the video layer. Otherwise, we won't receive
+    the notification regarding "readyForDisplay" key path, which drives the
+    `firstVideoFrameAvailable` callback.
+    
+    `destroyContextVideoRenderer()` destroys the `m_videoOutput`, but it will
+    be recreated by `createVideoLayer()`.
+    
+    Manually tested.
+    
+    * platform/graphics/avfoundation/MediaPlayerPrivateAVFoundation.cpp:
+    (WebCore::MediaPlayerPrivateAVFoundation::setUpVideoRendering):
+    
+    
+    git-svn-id: https://svn.webkit.org/repository/webkit/trunk@282774 268f45cc-cd09-0410-ab3c-d52691b4dbfc
+
+    2021-09-20  Peng Liu  <peng.l...@apple.com>
+
+            [GPUP] Videos appear black but audio plays normally
+            https://bugs.webkit.org/show_bug.cgi?id=230471
+            <rdar://82121369>
+
+            Reviewed by Youenn Fablet.
+
+            For some videos, the media player (MediaPlayerPrivateAVFoundation) starts
+            with the "MediaRenderingToContext" mode, and it switches to the "MediaRenderingToLayer"
+            mode later. When the mode switch happens, we have to destroy the context
+            video renderer before creating the video layer. Otherwise, we won't receive
+            the notification regarding "readyForDisplay" key path, which drives the
+            `firstVideoFrameAvailable` callback.
+
+            `destroyContextVideoRenderer()` destroys the `m_videoOutput`, but it will
+            be recreated by `createVideoLayer()`.
+
+            Manually tested.
+
+            * platform/graphics/avfoundation/MediaPlayerPrivateAVFoundation.cpp:
+            (WebCore::MediaPlayerPrivateAVFoundation::setUpVideoRendering):
+
+2021-09-22  Alan Coon  <alanc...@apple.com>
+
         Cherry-pick r282707. rdar://problem/83429953
 
     [JSC] Add fast property enumeration mode for JSON.stringify

Modified: branches/safari-612-branch/Source/WebCore/platform/graphics/avfoundation/MediaPlayerPrivateAVFoundation.cpp (282943 => 282944)


--- branches/safari-612-branch/Source/WebCore/platform/graphics/avfoundation/MediaPlayerPrivateAVFoundation.cpp	2021-09-23 05:14:29 UTC (rev 282943)
+++ branches/safari-612-branch/Source/WebCore/platform/graphics/avfoundation/MediaPlayerPrivateAVFoundation.cpp	2021-09-23 05:14:32 UTC (rev 282944)
@@ -136,6 +136,7 @@
         break;
 
     case MediaRenderingToLayer:
+        destroyContextVideoRenderer();
         createVideoLayer();
         break;
     }
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