Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 64f63548cbdb251e64f00cf6ea48b1799f0d055d
      
https://github.com/WebKit/WebKit/commit/64f63548cbdb251e64f00cf6ea48b1799f0d055d
  Author: Jean-Yves Avenard <[email protected]>
  Date:   2025-11-06 (Thu, 06 Nov 2025)

  Changed paths:
    A LayoutTests/media/content/vp9-opus-good-3tracks.webm
    A LayoutTests/media/media-multi-audio-tracks-webm-expected.txt
    A LayoutTests/media/media-multi-audio-tracks-webm.html
    M LayoutTests/platform/mac-site-isolation/TestExpectations
    M LayoutTests/platform/mac-wk1/TestExpectations
    M Source/WebCore/platform/graphics/cocoa/MediaPlayerPrivateWebM.h
    M Source/WebCore/platform/graphics/cocoa/MediaPlayerPrivateWebM.mm

  Log Message:
  -----------
  com.apple.WebKit.GPU at WebCore:  
WebCore::MediaPlayerPrivateWebM::notifyClientWhenReadyForMoreSamples
https://bugs.webkit.org/show_bug.cgi?id=302074
rdar://163061241

Reviewed by Youenn Fablet.

If a samples was demuxed from a track not yet activated, it will cause the 
MediaPlayerPrivateWebM
to use an invalid iterator to retrieve the track number.
This condition will easily occur if the webm had more than 1 track of each kind.

We abort notifyClientWhenReadyForMoreSamples method, if the tracks isn't
enabled yet.

Test: media/media-multi-audio-tracks-webm.html
* LayoutTests/media/content/vp9-opus-good-3tracks.webm: Added.
* LayoutTests/media/media-multi-audio-tracks-webm-expected.txt: Added.
* LayoutTests/media/media-multi-audio-tracks-webm.html: Added.
* Source/WebCore/platform/graphics/cocoa/MediaPlayerPrivateWebM.h:
* Source/WebCore/platform/graphics/cocoa/MediaPlayerPrivateWebM.mm:
(WebCore::MediaPlayerPrivateWebM::notifyClientWhenReadyForMoreSamples):
(WebCore::MediaPlayerPrivateWebM::isReadyForMoreSamples):
(WebCore::MediaPlayerPrivateWebM::maybeTrackIdentifierFor const):

Canonical link: https://commits.webkit.org/302672@main



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