-
Suggestion
-
Resolution: Unresolved
-
P3: Somewhat important
-
None
-
master
-
None
I try to check this manually whenever I see pngs, but I'm sure there are some that are missed (find . -name "*.png" -exec optipng -o 7 -strip all {} \; can verify that). It would be helpful to have the sanity bot check this.
An example run:
mitch@mitch-ubuntu:~/dev/qt-dev2/qtdoc$ optipng -o 7 -strip all examples/demos/qtoycustomizer/images/AngelWings_BaseColor.png
** Processing: examples/demos/qtoycustomizer/images/AngelWings_BaseColor.png
334x334 pixels, 4x8 bits/pixel, RGB+alpha
Reducing image to 3x8 bits/pixel, RGB
Input IDAT size = 51645 bytes
Input file size = 51714 bytes
Trying:
zc = 9 zm = 9 zs = 0 f = 2 IDAT size = 44696
zc = 9 zm = 8 zs = 0 f = 2 IDAT size = 44670
zc = 9 zm = 9 zs = 1 f = 2 IDAT size = 44589
zc = 9 zm = 8 zs = 1 f = 2 IDAT size = 44491
Selecting parameters:
zc = 9 zm = 8 zs = 1 f = 2 IDAT size = 44491
Output IDAT size = 44491 bytes (7154 bytes decrease)
Output file size = 44548 bytes (7166 bytes = 13.86% decrease)
Unfortunately I thought the -simulate option might produce the decrease info without modifying the file, but it doesn't, so I guess we'd need to copy the original and then run it.