QuickLook webm previews in Mountain Lion

[shape55]

I had QuickLook previews of webm files on Lion (10.7.5) with v1.3.2 but after upgrading to 10.8.5 i no longer have previews of webm files. They play fine in Quicktime and VLC though. Is Perian supposed to provide QuickLook previews of additional file formats?

[MaddTheSane]

QuickLook on 10.7 used QTKit, and thus QuickTime, for generating thumbnails. Later OS X versions use AVFoundation, which does not call QuickTime, and thus doesn't call Perian.

Sorry.

Sent from my iPad

On Feb 14, 2015, at 1:35 PM, shape55 [email protected] wrote:

I had QuickLook previews of webm files on Lion (10.7.5) with v1.3.2 but after upgrading to 10.8.5 i no longer have previews of webm files. They play fine in Quicktime and VLC though. Is Perian supposed to provide additional QuickLook previews?

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Reply to this email directly or view it on GitHub.

[shape55]

hmm, i see. do you know of a way to generate thumbnails thru AVFoundation?

[MaddTheSane]

The API to do so is private.

The best alternative would be to create a new QuickLook plug-in, with perhaps a way to transcode video and audio into a format that AVFoundation can read. To my knowledge, VP8 and VP9 aren’t supported.

On Feb 14, 2015, at 3:10 PM, shape55 [email protected] wrote:

hmm, i see. do you know of a way to generate thumbnails thru AVFoundation?

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Reply to this email directly or view it on GitHub #13 (comment).

[shape55]

ok, thanks for the info.