wok-next view oxipng/stuff/patches/oxipng.patch @ rev 21225
try to build cdrtools again
| author | Hans-G?nter Theisgen |
|---|---|
| date | Tue Dec 03 15:45:46 2019 +0100 (2019-12-03) |
| parents | |
| children |
line source
1 --- a/README.md
2 +++ b/README.md
3 @@ -14,11 +14,13 @@
4 Oxipng can be downloaded from the [Releases](https://github.com/shssoichiro/oxipng/releases) link on the GitHub page.
6 Oxipng can also be installed from Cargo, via the following command:
7 +
8 ```
9 cargo install oxipng
10 ```
12 Alternatively, oxipng can be built from source using the latest stable or nightly Rust:
13 +
14 ```
15 git clone https://github.com/shssoichiro/oxipng.git
16 cd oxipng
17 @@ -40,16 +42,19 @@
18 ```
20 The most commonly used options are as follows:
21 +
22 * Optimization: `-o 1` through `-o 6`, lower is faster, higher is better compression.
23 The default (`-o 2`) is sufficiently fast on a modern CPU and provides 30-50% compression
24 gains over an unoptimized PNG. `-o 4` is 6 times slower than `-o 2` but can provide 5-10%
25 extra compression over `-o 2`. Using any setting higher than `-o 4` is unlikely
26 to give any extra compression gains and is not recommended.
27 +
28 * Interlacing: `-i 1` will enable [Adam7](https://en.wikipedia.org/wiki/Adam7_algorithm)
29 PNG interlacing on any images that are processed. `-i 0` will remove interlacing from all
30 processed images. Not specifying either will keep the same interlacing state as the
31 input image. Note: Interlacing can add 25-50% to the size of an optimized image. Only use
32 it if you believe the benefits outweight the costs for your use case.
33 +
34 * Strip: Used to remove metadata info from processed images. Used via `--strip [safe,all]`.
35 Can save a few kilobytes if you don't need the metadata. "Safe" removes only metadata that
36 will never affect rendering of the image. "All" removes all metadata that is not critical
37 @@ -94,6 +99,7 @@
39 ## Benchmarks
41 +```
42 Tested oxipng 1.0.3 (compiled on rustc 1.25.0 (84203cac6 2018-03-25)) against OptiPNG version 0.7.7 on Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz with 8 logical cores
45 @@ -130,3 +136,4 @@
47 './target/release/oxipng -o4 -P ./tests/files/rgb_16_should_be_grayscale_8.png' ran
48 4.30x faster than 'optipng -o 4 -simulate ./tests/files/rgb_16_should_be_grayscale_8.png'
49 +```