mirror of
https://github.com/webmproject/libwebp.git
synced 2024-12-25 05:08:21 +01:00
update http links
- prefer https - metadataworkinggroup.org/com seem to be offline; the web archive link was obtained from exiftool: https://exiftool.org/TagNames/MWG.html - fix kramdown link, rubyforge has been gone a long time - fix png/zlib links Bug: webp:544 Bug: b/202302177 Change-Id: Id69de4553e7baf00393f12a2c1acb262443a1a93
This commit is contained in:
James Zern
parent
8f5cb4c18e
commit
b6f756e82b
12
README
12
README
@ -13,13 +13,13 @@ WebP codec: library to encode and decode images in WebP format. This package
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contains the library that can be used in other programs to add WebP support,
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as well as the command line tools 'cwebp' and 'dwebp'.
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See http://developers.google.com/speed/webp
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See https://developers.google.com/speed/webp
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The latest source tree is available at
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https://chromium.googlesource.com/webm/libwebp
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It is released under the same license as the WebM project.
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See http://www.webmproject.org/license/software/ or the
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See https://www.webmproject.org/license/software/ or the
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"COPYING" file for details. An additional intellectual
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property rights grant can be found in the file PATENTS.
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@ -436,8 +436,8 @@ Prerequisites:
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2) (Optional) qcms (Quick Color Management System)
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i. Download qcms from Mozilla / Chromium:
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http://hg.mozilla.org/mozilla-central/file/0e7639e3bdfb/gfx/qcms
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http://src.chromium.org/viewvc/chrome/trunk/src/third_party/qcms
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https://hg.mozilla.org/mozilla-central/file/0e7639e3bdfb/gfx/qcms
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https://source.chromium.org/chromium/chromium/src/+/main:third_party/qcms/;drc=d4a2f8e1ed461d8fc05ed88d1ae2dc94c9773825
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ii. Build and archive the source files as libqcms.a / qcms.lib
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iii. Update makefile.unix / Makefile.vc
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a) Define WEBP_HAVE_QCMS
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@ -786,10 +786,10 @@ Bugs:
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Please report all bugs to the issue tracker:
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https://bugs.chromium.org/p/webp
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Patches welcome! See this page to get started:
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http://www.webmproject.org/code/contribute/submitting-patches/
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https://www.webmproject.org/code/contribute/submitting-patches/
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Discuss:
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========
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Email: webp-discuss@webmproject.org
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Web: http://groups.google.com/a/webmproject.org/group/webp-discuss
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Web: https://groups.google.com/a/webmproject.org/group/webp-discuss
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@ -249,10 +249,10 @@ Bugs:
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Please report all bugs to the issue tracker:
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https://bugs.chromium.org/p/webp
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Patches welcome! See this page to get started:
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http://www.webmproject.org/code/contribute/submitting-patches/
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https://www.webmproject.org/code/contribute/submitting-patches/
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Discuss:
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========
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Email: webp-discuss@webmproject.org
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Web: http://groups.google.com/a/webmproject.org/group/webp-discuss
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Web: https://groups.google.com/a/webmproject.org/group/webp-discuss
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@ -1,6 +1,6 @@
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AC_INIT([libwebp], [1.2.1],
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[https://bugs.chromium.org/p/webp],,
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[http://developers.google.com/speed/webp])
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[https://developers.google.com/speed/webp])
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AC_CANONICAL_HOST
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AC_PREREQ([2.60])
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AM_INIT_AUTOMAKE([-Wall foreign subdir-objects])
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@ -6,8 +6,8 @@ HTML generation requires kramdown [1], easily installed as a
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rubygem [2]. Rubygems installation should satisfy dependencies
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automatically.
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[1]: http://kramdown.rubyforge.org/
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[2]: http://rubygems.org/
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[1]: https://kramdown.gettalong.org/
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[2]: https://rubygems.org/
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HTML generation can then be done from the project root:
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@ -26,4 +26,4 @@ $ kramdown doc/webp-lossless-bitstream-spec.txt --template \
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Optimally, use kramdown 0.13.7 or newer if syntax highlighting desired.
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[3]: http://coderay.rubychan.de/
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[3]: https://github.com/rubychan/coderay
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@ -2,7 +2,7 @@
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Although you may be viewing an alternate representation, this document
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is sourced in Markdown, a light-duty markup scheme, and is optimized for
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the [kramdown](http://kramdown.rubyforge.org/) transformer.
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the [kramdown](https://kramdown.gettalong.org/) transformer.
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See the accompanying README. External link targets are referenced at the
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end of this file.
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@ -813,7 +813,7 @@ RIFF/WEBP
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[vp8spec]: https://datatracker.ietf.org/doc/html/rfc6386
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[webpllspec]: https://chromium.googlesource.com/webm/libwebp/+/HEAD/doc/webp-lossless-bitstream-spec.txt
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[iccspec]: http://www.color.org/icc_specs2.xalter
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[metadata]: http://www.metadataworkinggroup.org/pdf/mwg_guidance.pdf
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[iccspec]: https://www.color.org/icc_specs2.xalter
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[metadata]: https://web.archive.org/web/20180919181934/http://www.metadataworkinggroup.org/pdf/mwg_guidance.pdf
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[rfc 1166]: https://datatracker.ietf.org/doc/html/rfc1166
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[rfc 2119]: https://datatracker.ietf.org/doc/html/rfc2119
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@ -2,7 +2,7 @@
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Although you may be viewing an alternate representation, this document
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is sourced in Markdown, a light-duty markup scheme, and is optimized for
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the [kramdown](http://kramdown.rubyforge.org/) transformer.
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the [kramdown](https://kramdown.gettalong.org/) transformer.
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See the accompanying README. External link targets are referenced at the
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end of this file.
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@ -1087,4 +1087,4 @@ A possible example sequence:
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<lz77-coded image>
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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[canonical_huff]: http://en.wikipedia.org/wiki/Canonical_Huffman_code
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[canonical_huff]: https://en.wikipedia.org/wiki/Canonical_Huffman_code
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@ -79,7 +79,7 @@ int WebPWriteTIFF(FILE* fout, const struct WebPDecBuffer* const buffer);
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int WebPWriteAlphaPlane(FILE* fout, const struct WebPDecBuffer* const buffer);
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// Save as YUV samples as PGM format (using IMC4 layout).
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// See: http://www.fourcc.org/yuv.php#IMC4.
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// See: https://www.fourcc.org/yuv.php#IMC4.
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// (very convenient format for viewing the samples, esp. for odd dimensions).
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int WebPWritePGM(FILE* fout, const struct WebPDecBuffer* const buffer);
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@ -133,7 +133,7 @@ static const struct {
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MetadataPayload* const payload);
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size_t storage_offset;
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} kPNGMetadataMap[] = {
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// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/PNG.html#TextualData
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// https://exiftool.org/TagNames/PNG.html#TextualData
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// See also: ExifTool on CPAN.
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{ "Raw profile type exif", ProcessRawProfile, METADATA_OFFSET(exif) },
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{ "Raw profile type xmp", ProcessRawProfile, METADATA_OFFSET(xmp) },
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@ -9,7 +9,7 @@
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# (the previous build will be erased if it exists).
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#
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# This script is inspired by the build script written by Carson McDonald.
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# (http://www.ioncannon.net/programming/1483/using-webp-to-reduce-native-ios-app-size/).
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# (https://www.ioncannon.net/programming/1483/using-webp-to-reduce-native-ios-app-size/).
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set -e
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@ -86,7 +86,7 @@ if [[ ! -e ${SRCDIR}/configure ]]; then
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Error creating configure script!
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This script requires the autoconf/automake and libtool to build. MacPorts can
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be used to obtain these:
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http://www.macports.org/install.php
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https://www.macports.org/install.php
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EOF
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exit 1
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fi
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@ -47,7 +47,7 @@ else
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endif
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# To install libraries on Mac OS X:
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# 1. Install MacPorts (http://www.macports.org/install.php)
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# 1. Install MacPorts (https://www.macports.org/install.php)
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# 2. Run "sudo port install jpeg"
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# 3. Run "sudo port install libpng"
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# 4. Run "sudo port install tiff"
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@ -1,5 +1,5 @@
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.\" Hey, EMACS: -*- nroff -*-
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.TH CWEBP 1 "November 19, 2020"
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.TH CWEBP 1 "November 17, 2021"
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.SH NAME
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cwebp \- compress an image file to a WebP file
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.SH SYNOPSIS
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@ -222,7 +222,7 @@ Compute and report average PSNR (Peak\-Signal\-To\-Noise ratio).
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.TP
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.B \-print_ssim
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Compute and report average SSIM (structural similarity
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metric, see http://en.wikipedia.org/wiki/SSIM for additional details).
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metric, see https://en.wikipedia.org/wiki/SSIM for additional details).
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.TP
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.B \-print_lsim
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Compute and report local similarity metric (sum of lowest error amongst the
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@ -298,7 +298,7 @@ Please report all bugs to the issue tracker:
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https://bugs.chromium.org/p/webp
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.br
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Patches welcome! See this page to get started:
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http://www.webmproject.org/code/contribute/submitting\-patches/
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https://www.webmproject.org/code/contribute/submitting\-patches/
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.SH EXAMPLES
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cwebp \-q 50 -lossless picture.png \-o picture_lossless.webp
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@ -322,5 +322,5 @@ for the Debian project (and may be used by others).
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.BR dwebp (1),
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.BR gif2webp (1)
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.br
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Please refer to http://developers.google.com/speed/webp/ for additional
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Please refer to https://developers.google.com/speed/webp/ for additional
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information.
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@ -1,5 +1,5 @@
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.\" Hey, EMACS: -*- nroff -*-
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.TH DWEBP 1 "November 19, 2020"
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.TH DWEBP 1 "November 17, 2021"
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.SH NAME
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dwebp \- decompress a WebP file to an image file
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.SH SYNOPSIS
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@ -113,7 +113,7 @@ Please report all bugs to the issue tracker:
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https://bugs.chromium.org/p/webp
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.br
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Patches welcome! See this page to get started:
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http://www.webmproject.org/code/contribute/submitting-patches/
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https://www.webmproject.org/code/contribute/submitting\-patches/
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.SH EXAMPLES
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dwebp picture.webp \-o output.png
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@ -138,7 +138,7 @@ for the Debian project (and may be used by others).
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.BR gif2webp (1),
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.BR webpmux (1)
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.br
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Please refer to http://developers.google.com/speed/webp/ for additional
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Please refer to https://developers.google.com/speed/webp/ for additional
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information.
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.SS Output file format details
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PAM: http://netpbm.sourceforge.net/doc/pam.html
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@ -1,5 +1,5 @@
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.\" Hey, EMACS: -*- nroff -*-
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.TH GIF2WEBP 1 "May 1, 2020"
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.TH GIF2WEBP 1 "November 17, 2021"
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.SH NAME
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gif2webp \- Convert a GIF image to WebP
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.SH SYNOPSIS
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@ -131,7 +131,7 @@ Please report all bugs to the issue tracker:
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https://bugs.chromium.org/p/webp
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.br
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Patches welcome! See this page to get started:
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http://www.webmproject.org/code/contribute/submitting-patches/
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https://www.webmproject.org/code/contribute/submitting\-patches/
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.SH EXAMPLES
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gif2webp picture.gif \-o picture.webp
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@ -160,5 +160,5 @@ Debian project (and may be used by others).
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.BR dwebp (1),
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.BR webpmux (1)
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.br
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Please refer to http://developers.google.com/speed/webp/ for additional
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Please refer to https://developers.google.com/speed/webp/ for additional
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information.
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@ -1,5 +1,5 @@
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.\" Hey, EMACS: -*- nroff -*-
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.TH IMG2WEBP 1 "May 1, 2020"
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.TH IMG2WEBP 1 "November 17, 2021"
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.SH NAME
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img2webp \- create animated WebP file from a sequence of input images.
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.SH SYNOPSIS
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@ -86,7 +86,7 @@ Please report all bugs to the issue tracker:
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https://bugs.chromium.org/p/webp
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.br
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Patches welcome! See this page to get started:
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http://www.webmproject.org/code/contribute/submitting\-patches/
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https://www.webmproject.org/code/contribute/submitting\-patches/
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.SH AUTHORS
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\fBimg2webp\fP is a part of libwebp and was written by the WebP team.
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@ -101,5 +101,5 @@ for the Debian project (and may be used by others).
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.BR webpmux (1),
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.BR gif2webp (1)
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.br
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Please refer to http://developers.google.com/speed/webp/ for additional
|
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Please refer to https://developers.google.com/speed/webp/ for additional
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information.
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@ -1,5 +1,5 @@
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.\" Hey, EMACS: -*- nroff -*-
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.TH VWEBP 1 "June 5, 2019"
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.TH VWEBP 1 "November 17, 2021"
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.SH NAME
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vwebp \- decompress a WebP file and display it in a window
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.SH SYNOPSIS
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@ -77,7 +77,7 @@ Please report all bugs to the issue tracker:
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https://bugs.chromium.org/p/webp
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.br
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Patches welcome! See this page to get started:
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http://www.webmproject.org/code/contribute/submitting-patches/
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https://www.webmproject.org/code/contribute/submitting\-patches/
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.SH EXAMPLES
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vwebp picture.webp
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@ -97,5 +97,5 @@ This manual page was written for the Debian project (and may be used by others).
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.SH SEE ALSO
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.BR dwebp (1)
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.br
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Please refer to http://developers.google.com/speed/webp/ for additional
|
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Please refer to https://developers.google.com/speed/webp/ for additional
|
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information.
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@ -1,5 +1,5 @@
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.\" Hey, EMACS: -*- nroff -*-
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.TH WEBPINFO 1 "November 24, 2017"
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.TH WEBPINFO 1 "November 17, 2021"
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.SH NAME
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webpinfo \- print out the chunk level structure of WebP files
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along with basic integrity checks.
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@ -52,7 +52,7 @@ Please report all bugs to the issue tracker:
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https://bugs.chromium.org/p/webp
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.br
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Patches welcome! See this page to get started:
|
||||
http://www.webmproject.org/code/contribute/submitting\-patches/
|
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https://www.webmproject.org/code/contribute/submitting\-patches/
|
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.SH EXAMPLES
|
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.br
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@ -76,5 +76,5 @@ for the Debian project (and may be used by others).
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.SH SEE ALSO
|
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.BR webpmux (1)
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.br
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Please refer to http://developers.google.com/speed/webp/ for additional
|
||||
Please refer to https://developers.google.com/speed/webp/ for additional
|
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information.
|
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@ -1,5 +1,5 @@
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.\" Hey, EMACS: -*- nroff -*-
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.TH WEBPMUX 1 "November 3, 2021"
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.TH WEBPMUX 1 "November 17, 2021"
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.SH NAME
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webpmux \- create animated WebP files from non\-animated WebP images, extract
|
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frames from animated WebP images, and manage XMP/EXIF metadata and ICC profile.
|
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@ -191,7 +191,7 @@ Please report all bugs to the issue tracker:
|
||||
https://bugs.chromium.org/p/webp
|
||||
.br
|
||||
Patches welcome! See this page to get started:
|
||||
http://www.webmproject.org/code/contribute/submitting\-patches/
|
||||
https://www.webmproject.org/code/contribute/submitting\-patches/
|
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|
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.SH EXAMPLES
|
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.P
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@ -267,5 +267,5 @@ for the Debian project (and may be used by others).
|
||||
.BR dwebp (1),
|
||||
.BR gif2webp (1)
|
||||
.br
|
||||
Please refer to http://developers.google.com/speed/webp/ for additional
|
||||
Please refer to https://developers.google.com/speed/webp/ for additional
|
||||
information.
|
||||
|
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@ -84,7 +84,7 @@ static const uint8_t kCodeToPlane[CODE_TO_PLANE_CODES] = {
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// to 256 (green component values) + 24 (length prefix values)
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// + color_cache_size (between 0 and 2048).
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// All values computed for 8-bit first level lookup with Mark Adler's tool:
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// http://www.hdfgroup.org/ftp/lib-external/zlib/zlib-1.2.5/examples/enough.c
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// https://github.com/madler/zlib/blob/v1.2.5/examples/enough.c
|
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#define FIXED_TABLE_SIZE (630 * 3 + 410)
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static const uint16_t kTableSize[12] = {
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FIXED_TABLE_SIZE + 654,
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@ -9,7 +9,7 @@
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//
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// ARM NEON version of speed-critical encoding functions.
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||||
//
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||||
// adapted from libvpx (http://www.webmproject.org/code/)
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// adapted from libvpx (https://www.webmproject.org/code/)
|
||||
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#include "src/dsp/dsp.h"
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||||
|
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|
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@ -10,7 +10,7 @@
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||||
// inline YUV<->RGB conversion function
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||||
//
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||||
// The exact naming is Y'CbCr, following the ITU-R BT.601 standard.
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||||
// More information at: http://en.wikipedia.org/wiki/YCbCr
|
||||
// More information at: https://en.wikipedia.org/wiki/YCbCr
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// Y = 0.2569 * R + 0.5044 * G + 0.0979 * B + 16
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// U = -0.1483 * R - 0.2911 * G + 0.4394 * B + 128
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// V = 0.4394 * R - 0.3679 * G - 0.0715 * B + 128
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@ -161,7 +161,7 @@ static void SetBitDepths(const HuffmanTree* const tree,
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// especially when population counts are longer than 2**tree_limit, but
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// we are not planning to use this with extremely long blocks.
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//
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// See http://en.wikipedia.org/wiki/Huffman_coding
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||||
// See https://en.wikipedia.org/wiki/Huffman_coding
|
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static void GenerateOptimalTree(const uint32_t* const histogram,
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int histogram_size,
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HuffmanTree* tree, int tree_depth_limit,
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@ -30,7 +30,7 @@
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||||
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#define DFIX 4 // extra precision for ordered dithering
|
||||
#define DSIZE 4 // dithering size (must be a power of two)
|
||||
// cf. http://en.wikipedia.org/wiki/Ordered_dithering
|
||||
// cf. https://en.wikipedia.org/wiki/Ordered_dithering
|
||||
static const uint8_t kOrderedDither[DSIZE][DSIZE] = {
|
||||
{ 0, 8, 2, 10 }, // coefficients are in DFIX fixed-point precision
|
||||
{ 12, 4, 14, 6 },
|
||||
|
||||
@ -23,7 +23,7 @@
|
||||
// alloc/free etc) is printed. For debugging/tuning purpose only (it's slow,
|
||||
// and not multi-thread safe!).
|
||||
// An interesting alternative is valgrind's 'massif' tool:
|
||||
// http://valgrind.org/docs/manual/ms-manual.html
|
||||
// https://valgrind.org/docs/manual/ms-manual.html
|
||||
// Here is an example command line:
|
||||
/* valgrind --tool=massif --massif-out-file=massif.out \
|
||||
--stacks=yes --alloc-fn=WebPSafeMalloc --alloc-fn=WebPSafeCalloc
|
||||
|
||||
@ -85,7 +85,7 @@ WEBP_EXTERN uint8_t* WebPDecodeBGR(const uint8_t* data, size_t data_size,
|
||||
// Upon return, the Y buffer has a stride returned as '*stride', while U and V
|
||||
// have a common stride returned as '*uv_stride'.
|
||||
// Return NULL in case of error.
|
||||
// (*) Also named Y'CbCr. See: http://en.wikipedia.org/wiki/YCbCr
|
||||
// (*) Also named Y'CbCr. See: https://en.wikipedia.org/wiki/YCbCr
|
||||
WEBP_EXTERN uint8_t* WebPDecodeYUV(const uint8_t* data, size_t data_size,
|
||||
int* width, int* height,
|
||||
uint8_t** u, uint8_t** v,
|
||||
|
||||
@ -105,7 +105,7 @@ if [[ ! -e ${SRCDIR}/configure ]]; then
|
||||
Error creating configure script!
|
||||
This script requires the autoconf/automake and libtool to build. MacPorts or
|
||||
Homebrew can be used to obtain these:
|
||||
http://www.macports.org/install.php
|
||||
https://www.macports.org/install.php
|
||||
https://brew.sh/
|
||||
EOF
|
||||
exit 1
|
||||
|
||||
Loading…
Reference in New Issue
Block a user