This is because in mpeg handler we have: $width = (int)( $width * $aspect ); but for this file the aspect ratio is 0. It is not know if this is allowed in mpeg1/2

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Related Changes in Gerrit:

	Subject	Author	Repo	Branch	Lines +/-
	MPEG: fall back to square pixels when AR is invalid	TheDJ	mediawiki/extensions/TimedMediaHandler	master	+8 -4

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Status	Subtype	Assigned	Task
Open		None	T44725 Multimedia file format support (tracking)
Invalid	BUG REPORT	None	T301788 Metadata issues with few .mpg files on Wikimedia Commons
Resolved	BUG REPORT	TheDJ	T305042 Handle mpeg files with an aspect ratio of 0

Event Timeline

TheDJ created this task.Mar 30 2022, 10:04 AM

Restricted Application added a subscriber: • Aklapper. · View Herald TranscriptMar 30 2022, 10:04 AM

TheDJ added a parent task: T301788: Metadata issues with few .mpg files on Wikimedia Commons.Mar 30 2022, 10:04 AM

Mitar subscribed.Mar 30 2022, 10:08 AM

@brion I see in the past you made several comments on ID3 relating to aspect ratio issues in MPEG via https://github.com/JamesHeinrich/getID3/issues/148

Is this issue related to that perhaps ?

Ah right, this is probably T289189

TheDJ moved this task from To sort to Backlog/maint on the TimedMediaHandler board.Apr 13 2022, 2:01 PM

TheDJ mentioned this in T301788: Metadata issues with few .mpg files on Wikimedia Commons.Jun 13 2026, 2:45 PM

Change #1301702 had a related patch set uploaded (by TheDJ; author: TheDJ):

[mediawiki/extensions/TimedMediaHandler@master] MPEG: fall back to square pixels when AR is invalid

https://gerrit.wikimedia.org/r/1301702

gerritbot added a project: Patch-For-Review.Jun 14 2026, 1:41 PM

Change #1301702 merged by jenkins-bot:

[mediawiki/extensions/TimedMediaHandler@master] MPEG: fall back to square pixels when AR is invalid

https://gerrit.wikimedia.org/r/1301702

Maintenance_bot removed a project: Patch-For-Review.Jun 14 2026, 4:31 PM