ffmpeg thumbnail generation for thusnelda encoded ogg breakage
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	• bzimport
	Aug 26 2009, 1:30 PM

Description

Author: mdale

Description:
The current version of ffmpeg used on wikimedia servers seems to mangle the thumbnail generation of videos encoded with the latest theora encoder. (included with firefogg)

I have not confirmed but I believe a more recent version of ffmpeg solves this problem. An alternative would be to use a xiph based tool to abstract the thumbnail.

the sample image:
http://commons.wikimedia.org/wiki/File:Test_ffmpeg_image.ogv

Version: unspecified
Severity: enhancement
URL: http://commons.wikimedia.org/wiki/File:Test_ffmpeg_image.ogv

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Reference: bz20405

Event Timeline

• bzimport raised the priority of this task from to Medium.Nov 21 2014, 10:47 PM

• bzimport added projects: MediaWiki-extensions-OggHandler, Shell.

• bzimport set Reference to bz20405.

• bzimport created this task.Aug 26 2009, 1:30 PM

Reassigning to Fred for software update.

daniel wrote:

More test cases:
http://commons.wikimedia.org/wiki/Image:Announcement_Nobelprize_PhysMed_2009-1.ogv
http://commons.wikimedia.org/wiki/Image:Announcement_Nobelprize_PhysMed_2009-2.ogv

in the #theora channel I was told that old versions of ffmpeg do not fully implement the theora 1.0 standard, and that the 1.1 encoder uses unimplemented features.

Please update.

mdale wrote:

We added support for oggThumb for thumbnail generation r57439. This supports theora 1.1 encoder. The example files should work now.

ffmpeg thumbnail generation for thusnelda encoded ogg breakageClosed, ResolvedPublicActions

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ffmpeg thumbnail generation for thusnelda encoded ogg breakage
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