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| author | Tarja Sundqvist <tarja.sundqvist@qt.io> | 2022-04-07 15:22:06 +0300 |
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| committer | Tarja Sundqvist <tarja.sundqvist@qt.io> | 2022-04-07 15:22:06 +0300 |
| commit | 8c5bcabbf6a2e27539c2ad689fd69f2406d5cf5c (patch) | |
| tree | c94914f103305661850b45164cda5d7313c301e5 /src/3rdparty/libwebp/README | |
| parent | 90038c936763645610fe1e5f05cfc025e4d98631 (diff) | |
| parent | 40da7331d6d818ec96604feaf978c8e6e828da7f (diff) | |
Merge remote-tracking branch 'origin/tqtc/lts-5.15.4' into tqtc/lts-5.15-opensourcev5.15.4-lts-lgpl
Change-Id: I0c8024a783a45e5369d64ac2ce0189f9d4b2899d
Diffstat (limited to 'src/3rdparty/libwebp/README')
| -rw-r--r-- | src/3rdparty/libwebp/README | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/3rdparty/libwebp/README b/src/3rdparty/libwebp/README index 0592727..bbe2c81 100644 --- a/src/3rdparty/libwebp/README +++ b/src/3rdparty/libwebp/README @@ -4,7 +4,7 @@ \__\__/\____/\_____/__/ ____ ___ / _/ / \ \ / _ \/ _/ / \_/ / / \ \ __/ \__ - \____/____/\_____/_____/____/v1.1.0 + \____/____/\_____/_____/____/v1.2.0 Description: ============ @@ -113,7 +113,7 @@ make install CMake: ------ -With CMake, you can compile libwebp, cwebp, dwebp, gif2web, img2webp, webpinfo +With CMake, you can compile libwebp, cwebp, dwebp, gif2webp, img2webp, webpinfo and the JS bindings. Prerequisites: @@ -225,6 +225,7 @@ Usage: If input size (-s) for an image is not specified, it is assumed to be a PNG, JPEG, TIFF or WebP file. +Note: Animated PNG and WebP files are not supported. Options: -h / -help ............. short help @@ -254,6 +255,8 @@ Options: -partition_limit <int> . limit quality to fit the 512k limit on the first partition (0=no degradation ... 100=full) -pass <int> ............ analysis pass number (1..10) + -qrange <min> <max> .... specifies the permissible quality range + (default: 0 100) -crop <x> <y> <w> <h> .. crop picture with the given rectangle -resize <w> <h> ........ resize picture (after any cropping) -mt .................... use multi-threading if available @@ -294,6 +297,7 @@ Experimental Options: -af .................... auto-adjust filter strength -pre <int> ............. pre-processing filter + The main options you might want to try in order to further tune the visual quality are: -preset @@ -341,7 +345,9 @@ The full list of options is available using -h: > dwebp -h Usage: dwebp in_file [options] [-o out_file] -Decodes the WebP image file to PNG format [Default] +Decodes the WebP image file to PNG format [Default]. +Note: Animated WebP files are not supported. + Use following options to convert into alternate image formats: -pam ......... save the raw RGBA samples as a color PAM -ppm ......... save the raw RGB samples as a color PPM @@ -423,7 +429,7 @@ Prerequisites: 1) OpenGL & OpenGL Utility Toolkit (GLUT) Linux: $ sudo apt-get install freeglut3-dev mesa-common-dev - Mac + XCode: + Mac + Xcode: - These libraries should be available in the OpenGL / GLUT frameworks. Windows: http://freeglut.sourceforge.net/index.php#download |