willnorris / willnorris/imageproxy

Animated gifs doubles or triples in size after optimization

Open
#125 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Go
Stars
4k
Forks
513
PR merge metrics
No merged PRs in 30d

Description

Hello,
I have this animated gif: http://s3cdn.observador.pt/wp-content/uploads/2017/11/21123024/capa770.gif

After the resize process it's much larger: https://imageproxy-observadorontime.netdna-ssl.com/800x,q85/http://s3cdn.observador.pt/wp-content/uploads/2017/11/21123024/capa770.gif

It seems to be a weird and not expected outcome. Is this something that could be fixed?

Thanks

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the resize request with the animated GIF URLs in the issue and compare the original and optimized file sizes. Trace the image-resizing path to identify why animated GIF output grows, then verify that resizing no longer doubles or triples the file size for this case.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.