Has anyone got Whammy to work recently?

[pkallerm]

Hi,

I see there's basically two issues it seems like with Whammy as a result of the passage of time -- (1) a modification to the webp code and (2) something with CreateObjectUrl (I think this has been superceded).

Has anyone successfully modified to work recently? If so, would you be open to sharing your updated .js?

Thank you,

Philip

[isagues]

From what i've seen there are problems with the different WebP encodings.

Whammy works for files encode with VP8 (Lossy). Currently in Firefox 104.0.1 canvas are converted to VP8 and whammy works. However, when trying to process VP8X or VP8L (Lossless) it fails.

The VP8X problem can be solved with #70 (comment). Which removes the extra file headers. Resulting in VP8 or VP8L data.

In any case you end up with VP8L data (could be via VP8X) whammy will fail.

var frame_start = VP8.indexOf('\x9d\x01\x2a'); //A VP8 keyframe starts with the 0x9d012a header

This pattern won't be present and

[RafaelSencare]

I simply cannot make it work with VP8X, even with the fixes mentioned on @isagues comments.