Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 469467e53afbf8f02646e57d3523a38dcdcc5e1e
https://github.com/WebKit/WebKit/commit/469467e53afbf8f02646e57d3523a38dcdcc5e1e
Author: Youenn Fablet <[email protected]>
Date: 2026-05-12 (Tue, 12 May 2026)
Changed paths:
M LayoutTests/platform/glib/TestExpectations
M LayoutTests/platform/ios/TestExpectations
A LayoutTests/webrtc/getDisplayMedia-pc-resolution-expected.txt
A LayoutTests/webrtc/getDisplayMedia-pc-resolution.html
M Source/ThirdParty/libwebrtc/Configurations/libwebrtc.exp
M Source/WebCore/Modules/mediastream/libwebrtc/LibWebRTCMediaEndpoint.cpp
M Source/WebCore/Modules/mediastream/libwebrtc/LibWebRTCMediaEndpoint.h
M Source/WebCore/Modules/mediastream/libwebrtc/LibWebRTCRtpSenderBackend.cpp
M Source/WebCore/Modules/mediastream/libwebrtc/LibWebRTCUtils.cpp
M Source/WebCore/Modules/mediastream/libwebrtc/LibWebRTCUtils.h
M Source/WebCore/platform/mediastream/RealtimeOutgoingVideoSource.cpp
M Source/WebCore/platform/mediastream/RealtimeOutgoingVideoSource.h
Log Message:
-----------
Safari WebRTC screen sharing via getDisplayMedia starts at extremely low
quality and takes ~30 seconds to become legible for remote participants
rdar://175425085
https://bugs.webkit.org/show_bug.cgi?id=312472
Reviewed by Jean-Yves Avenard.
By default, peer connection should favour resolution for screenshare and frame
rate for camera content.
We make sure to let know the libwebrtc backend that sent content is screenshare
by implementing RealtimeOutgoingVideoSource::is_screencast based on the capture
device type.
We also make sure to pipe content hint information to the libwebrtc backend,
which can allow canvas tracks to select easily between the two behaviors.
Covered by added test.
Test: webrtc/getDisplayMedia-pc-resolution.html
* LayoutTests/webrtc/getDisplayMedia-pc-resolution-expected.txt: Added.
* LayoutTests/webrtc/getDisplayMedia-pc-resolution.html: Added.
* Source/ThirdParty/libwebrtc/Configurations/libwebrtc.exp:
* Source/WebCore/Modules/mediastream/libwebrtc/LibWebRTCMediaEndpoint.cpp:
(WebCore::LibWebRTCMediaEndpoint::addTrack):
(WebCore::LibWebRTCMediaEndpoint::createSourceAndRTCTrack):
* Source/WebCore/Modules/mediastream/libwebrtc/LibWebRTCRtpSenderBackend.cpp:
(WebCore::LibWebRTCRtpSenderBackend::replaceTrack):
* Source/WebCore/Modules/mediastream/libwebrtc/LibWebRTCUtils.cpp:
(WebCore::toWebRTCContentHint):
* Source/WebCore/Modules/mediastream/libwebrtc/LibWebRTCUtils.h:
* Source/WebCore/platform/mediastream/RealtimeOutgoingVideoSource.cpp:
(WebCore::RealtimeOutgoingVideoSource::RealtimeOutgoingVideoSource):
(WebCore::RealtimeOutgoingVideoSource::setSource):
(WebCore::RealtimeOutgoingVideoSource::is_screencast const):
* Source/WebCore/platform/mediastream/RealtimeOutgoingVideoSource.h:
Canonical link: https://commits.webkit.org/313072@main
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