Quelle  0121.patch   Sprache: unbekannt

From: Andreas Pehrson <apehrson@mozilla.com>
Date: Thu, 12 Sep 2024 22:36:00 +0000
Subject: Bug 1918096 - In ScreenCapturerSck skip some processing when
 possible. r=webrtc-reviewers,ng

No need to update the last frame unless it has changed.

Differential Revision: https://phabricator.services.mozilla.com/D221942
Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/8d52f2fd575479da72508033b3a2151906e2bf19
---
 .../desktop_capture/mac/screen_capturer_sck.mm  | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/modules/desktop_capture/mac/screen_capturer_sck.mm b/modules/desktop_capture/mac/screen_capturer_sck.mm
index 3d1751378c..d431ef0fc8 100644
--- a/modules/desktop_capture/mac/screen_capturer_sck.mm
+++ b/modules/desktop_capture/mac/screen_capturer_sck.mm
@@ -511,6 +511,7 @@ class API_AVAILABLE(macos(14.0)) ScreenCapturerSck final : public DesktopCapture
   CGRect contentRect = {};
   CGRect boundingRect = {};
   CGRect overlayRect = {};
+  SCFrameStatus status = SCFrameStatusStopped;
   const auto* dirty_rects = (NSArray*)attachment[SCStreamFrameInfoDirtyRects];
   if (auto factor = (NSNumber *)attachment[SCStreamFrameInfoScaleFactor]) {
     scaleFactor = [factor floatValue];
@@ -536,6 +537,22 @@ class API_AVAILABLE(macos(14.0)) ScreenCapturerSck final : public DesktopCapture
     }
   }
 
+  if (auto statusNr = (NSNumber *)attachment[SCStreamFrameInfoStatus]) {
+    status = (SCFrameStatus)[statusNr integerValue];
+  }
+
+  switch (status) {
+    case SCFrameStatusBlank:
+    case SCFrameStatusIdle:
+    case SCFrameStatusSuspended:
+    case SCFrameStatusStopped:
+      // No new frame. Ignore.
+      return;
+    case SCFrameStatusComplete:
+    case SCFrameStatusStarted:
+      // New frame. Process it.
+      break;
+  }
 
   auto imgBoundingRect = CGRectMake(
       scaleFactor * boundingRect.origin.x,