Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: bc0b5db0e5d31ca7a15a2bf334188ed71004e553
https://github.com/WebKit/WebKit/commit/bc0b5db0e5d31ca7a15a2bf334188ed71004e553
Author: Jean-Yves Avenard <[email protected]>
Date: 2026-08-21 (Fri, 21 Aug 2026)
Changed paths:
A
LayoutTests/media/media-source/media-source-real-webm-backwards-timecode-expected.txt
A
LayoutTests/media/media-source/media-source-real-webm-backwards-timecode.html
M LayoutTests/media/media-source/webm-generator.js
M LayoutTests/platform/glib/TestExpectations
M Source/WebCore/Modules/mediasource/SampleMap.cpp
M Source/WebCore/platform/graphics/cocoa/SourceBufferParserWebM.cpp
M Source/WebCore/platform/graphics/cocoa/SourceBufferParserWebM.h
M Tools/TestWebKitAPI/Tests/WebCore/SampleMap.cpp
Log Message:
-----------
SourceBufferParserWebM can emit negative MediaSample.duration
https://bugs.webkit.org/show_bug.cgi?id=322152
rdar://179030051
Reviewed by Jer Noble.
We guard against non-monotonically increasing timestamps within a cluster as an
error.
If from one cluster to another it's treated as a discontinuity.
Tests: Tools/TestWebKitAPI/Tests/WebCore/SampleMap.cpp
media/media-source/media-source-real-webm-backwards-timecode.html
*
LayoutTests/media/media-source/media-source-real-webm-backwards-timecode-expected.txt:
Added.
*
LayoutTests/media/media-source/media-source-real-webm-backwards-timecode.html:
Added.
* LayoutTests/media/media-source/webm-generator.js:
(const.WebM):
* Source/WebCore/Modules/mediasource/SampleMap.cpp:
* Source/WebCore/platform/graphics/cocoa/SourceBufferParserWebM.cpp:
(WebCore::WebMParser::OnClusterBegin):
(WebCore::WebMParser::OnFrame):
(WebCore::WebMParser::VideoTrackData::consumeFrameData):
(WebCore::WebMParser::VideoTrackData::processPendingMediaSamples):
* Source/WebCore/platform/graphics/cocoa/SourceBufferParserWebM.h:
(WebCore::WebMParser::TrackData::updateLastAbsoluteTimecode):
(WebCore::WebMParser::TrackData::resetLastAbsoluteTimecode):
* Tools/TestWebKitAPI/Tests/WebCore/SampleMap.cpp:
(TestWebKitAPI::TEST_F(SampleMapTest, findSamplesBetweenPresentationTimes)):
(TestWebKitAPI::TEST_F(SampleMapTest,
findSamplesBetweenPresentationTimesFromEnd)):
Canonical link: https://commits.webkit.org/319595@main
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