A gif lossy compression service based on gifsicle.

Started

• pull: docker pull dylanninin/giflossy

• run: docker run -p 9100:9100 dylanninin/giflossy

• request:

  • source gif: wget http://bit.ly/2iP176E -qO demo.gif

  • lossy compressed: wget http://localhost:9100/handler?url=http://bit.ly/2iP176E -qO lossy.gif

  • diff

    ls -hl *.gif
    -rw-r- r-   1 dylanninin  staff    10M Jan  8 10:37 demo.gif
    -rw-r- r-   1 dylanninin  staff   1.9M Jan  8 11:04 lossy.gif

• handler: a simple http wrapper on gifsicle executable binary, see main.sh

  • syntax: http://localhost:9100/handler?url={gif_url}&opt={options}
  • gif_url: the url of a gif
  • options: like /opt_1/val_1/opt_2/opt_3/val_3. available options:
    • info Print info about input GIFs.
    • sinfo info plus compression information.
    • cinfo info plus colormap details.
    • xinfo info plus extension details.
    • resize/WxH Resize the output GIF to WxH.
    • resize-fit/WxH Resize if necessary to fit within WxH.
    • resize-colors/N Resize can add new colors up to N.
    • scale/XFACTORxYFACTOR Scale the output GIF by XFACTORxYFACTOR.
    • lossy/STRENGTH Order pixel patterns to create smaller GIFs at cost of artifacts and noise.
    • optimize/LEVEL Optimize output GIFs.
    • interlace Turn on interlacing.
    • crop/X,Y+WxH or crop/X,Y-X2,Y2. Crop the image.
    • rotate/DEGREE Rotate the image: 90,180,270.
  • options example:
    • /lossy/80
    • /optimize/3/lossy/80/interlace
    • /resize/400x400/optimize/3/lossy/80/interlace
    • /resize-fit/400x400/optimize/3/lossy/80/interlace
    • /resize-colors/32/optimize/3/lossy/80/interlace
    • /scale/1.1x1.1/optimize/3/lossy/80/interlace
    • /crop/400,400-600,600/optimize/3/lossy/80/interlace
    • /rotate/90/optimize/3/lossy/80/interlace

Qiniu ufop

Refer 开发者自定义数据处理程序-快速入门

• register ufop

  qdoractl register giflossy -d "Gif Lossy Compression service based on gifsicle" -m protected

• push image

  qdoractl push dylanninin/giflossy:v1

• add release config

  qdoractl release --mkconfig .

• config release

  qdoractl release --config .

• add release

  qdoractl release giflossy -d

• deploy

  qdoractl deploy giflossy v1 --region z0 --expect 1

• test

  wget http://7xiqcg.com1.z0.glb.clouddn.com/demo.gif -qO origin.gif
  wget http://7xiqcg.com1.z0.glb.clouddn.com/demo.gif?giflossy -qO origin_lossy.gif
  
  ls -lh *.gif
  -rw-r- r-   1 dylanninin  staff    10M Jan  8 10:37 origin.gif
  -rw-r- r-   1 dylanninin  staff   1.9M Jan  8 10:37 origin_lossy.gif

• usage

  • http://{resource_url}?giflossy: default with /optimize/3/lossy/80/interlace
  • http://{resource_url}?giflossy&opt={options}: see handler options above.

• apply

  # You can apply this service since it's protected
  # - It will work in 5 minutes.
  qdoractl apply giflossy

Build from scratch

• build: rocker build

Reference

• https://github.com/msoap/shell2http
• https://github.com/pornel/giflossy
• kohler/gifsicle#16
• https://github.com/dylanninin/gifsicle/tree/lossy
• https://github.com/grammarly/rocker
• http://developer.qiniu.com/article/dora/ufop/v2/ufop-fast.html
• http://developer.qiniu.com/article/dora/ufop/v2/qdoractl.html#apply