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sindresorhus / Gifski

🌈 Convert videos to high-quality GIFs on your Mac
https://sindresorhus.com/gifski
MIT License
7.72k stars 290 forks source link

Alpha channel not preserved with low quality #267

Closed sindresorhus closed 2 years ago

sindresorhus commented 2 years ago

Got a report from a user that the alpha channel is not preserved. I can reproduce when the quality is set to less than 30%. This is a regression from Gifski 2.19.0 (before the gif.ski upgrade).

Gifski (main branch)

Long Press-cropped-comp

Gifski 2.19.0 (older version)

Long Press-cropped-comp

Source: https://user-images.githubusercontent.com/170270/149871168-e562bc7a-b37e-4db7-86a7-5377d064669c.mp4

// @kornelski

sindresorhus commented 2 years ago

Another fixture. This one just shows a one frame flash (but that's a regression too). puppets_with_alpha_hevc

https://user-images.githubusercontent.com/170270/149871462-572e4082-7f83-494e-a4fe-5e44e7a7724c.mov

kornelski commented 2 years ago

Fixed in eeaa53c9d2361087246543c3cd1bb9f294eafc3d

sindresorhus commented 2 years ago

Confirmed fixed. Thanks for the quick fix.