mirror of
https://github.com/webmproject/libwebp.git
synced 2024-12-25 13:18:22 +01:00
add man pages for cwebp(1) and dwebp(1)
Change-Id: I450717fc82fff19f16df75aca6a9a567773afd00
This commit is contained in:
Pascal Massimino
parent
c4fa36448b
commit
dd60138d20
@ -1,2 +1,2 @@
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SUBDIRS = src examples
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SUBDIRS = src examples man
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EXTRA_DIST = COPYING autogen.sh
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@ -218,7 +218,7 @@ target_alias = @target_alias@
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top_build_prefix = @top_build_prefix@
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top_builddir = @top_builddir@
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top_srcdir = @top_srcdir@
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SUBDIRS = src examples
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SUBDIRS = src examples man
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EXTRA_DIST = COPYING autogen.sh
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all: config.h
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$(MAKE) $(AM_MAKEFLAGS) all-recursive
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@ -268,7 +268,7 @@ config.h: stamp-h1
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stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
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@rm -f stamp-h1
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cd $(top_builddir) && $(SHELL) ./config.status config.h
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$(srcdir)/config.h.in: $(am__configure_deps)
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$(srcdir)/config.h.in: $(am__configure_deps)
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($(am__cd) $(top_srcdir) && $(AUTOHEADER))
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rm -f stamp-h1
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touch $@
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3
configure
vendored
3
configure
vendored
@ -10732,7 +10732,7 @@ fi
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ac_config_headers="$ac_config_headers config.h"
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ac_config_files="$ac_config_files Makefile src/Makefile examples/Makefile src/dec/Makefile src/enc/Makefile"
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ac_config_files="$ac_config_files Makefile src/Makefile man/Makefile examples/Makefile src/dec/Makefile src/enc/Makefile"
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@ -11706,6 +11706,7 @@ do
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"config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
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"Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
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"src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
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"man/Makefile") CONFIG_FILES="$CONFIG_FILES man/Makefile" ;;
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"examples/Makefile") CONFIG_FILES="$CONFIG_FILES examples/Makefile" ;;
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"src/dec/Makefile") CONFIG_FILES="$CONFIG_FILES src/dec/Makefile" ;;
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"src/enc/Makefile") CONFIG_FILES="$CONFIG_FILES src/enc/Makefile" ;;
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@ -62,7 +62,7 @@ AC_SUBST(JPEG_INCLUDES)
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AC_CONFIG_MACRO_DIR([m4])
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AC_CONFIG_HEADERS([config.h])
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AC_CONFIG_FILES([Makefile src/Makefile examples/Makefile src/dec/Makefile src/enc/Makefile])
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AC_CONFIG_FILES([Makefile src/Makefile man/Makefile examples/Makefile src/dec/Makefile src/enc/Makefile])
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AC_OUTPUT
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1
man/Makefile.am
Normal file
1
man/Makefile.am
Normal file
@ -0,0 +1 @@
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man_MANS = cwebp.1 dwebp.1
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435
man/Makefile.in
Normal file
435
man/Makefile.in
Normal file
@ -0,0 +1,435 @@
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# Makefile.in generated by automake 1.11.1 from Makefile.am.
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# @configure_input@
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# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
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# Inc.
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# This Makefile.in is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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# PARTICULAR PURPOSE.
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@SET_MAKE@
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tags: TAGS
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-e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
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sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
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sort -u` ;; \
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esac; \
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find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
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fi; \
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cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
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else \
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test -f "$(distdir)/$$file" \
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fi; \
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done
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check-am: all-am
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check: check-am
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all-am: Makefile $(MANS)
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installdirs:
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for dir in "$(DESTDIR)$(man1dir)"; do \
|
||||
test -z "$$dir" || $(MKDIR_P) "$$dir"; \
|
||||
done
|
||||
install: install-am
|
||||
install-exec: install-exec-am
|
||||
install-data: install-data-am
|
||||
uninstall: uninstall-am
|
||||
|
||||
install-am: all-am
|
||||
@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
|
||||
|
||||
installcheck: installcheck-am
|
||||
install-strip:
|
||||
$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
|
||||
install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
|
||||
`test -z '$(STRIP)' || \
|
||||
echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
|
||||
mostlyclean-generic:
|
||||
|
||||
clean-generic:
|
||||
|
||||
distclean-generic:
|
||||
-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
|
||||
-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
|
||||
|
||||
maintainer-clean-generic:
|
||||
@echo "This command is intended for maintainers to use"
|
||||
@echo "it deletes files that may require special tools to rebuild."
|
||||
clean: clean-am
|
||||
|
||||
clean-am: clean-generic clean-libtool mostlyclean-am
|
||||
|
||||
distclean: distclean-am
|
||||
-rm -f Makefile
|
||||
distclean-am: clean-am distclean-generic
|
||||
|
||||
dvi: dvi-am
|
||||
|
||||
dvi-am:
|
||||
|
||||
html: html-am
|
||||
|
||||
html-am:
|
||||
|
||||
info: info-am
|
||||
|
||||
info-am:
|
||||
|
||||
install-data-am: install-man
|
||||
|
||||
install-dvi: install-dvi-am
|
||||
|
||||
install-dvi-am:
|
||||
|
||||
install-exec-am:
|
||||
|
||||
install-html: install-html-am
|
||||
|
||||
install-html-am:
|
||||
|
||||
install-info: install-info-am
|
||||
|
||||
install-info-am:
|
||||
|
||||
install-man: install-man1
|
||||
|
||||
install-pdf: install-pdf-am
|
||||
|
||||
install-pdf-am:
|
||||
|
||||
install-ps: install-ps-am
|
||||
|
||||
install-ps-am:
|
||||
|
||||
installcheck-am:
|
||||
|
||||
maintainer-clean: maintainer-clean-am
|
||||
-rm -f Makefile
|
||||
maintainer-clean-am: distclean-am maintainer-clean-generic
|
||||
|
||||
mostlyclean: mostlyclean-am
|
||||
|
||||
mostlyclean-am: mostlyclean-generic mostlyclean-libtool
|
||||
|
||||
pdf: pdf-am
|
||||
|
||||
pdf-am:
|
||||
|
||||
ps: ps-am
|
||||
|
||||
ps-am:
|
||||
|
||||
uninstall-am: uninstall-man
|
||||
|
||||
uninstall-man: uninstall-man1
|
||||
|
||||
.MAKE: install-am install-strip
|
||||
|
||||
.PHONY: all all-am check check-am clean clean-generic clean-libtool \
|
||||
distclean distclean-generic distclean-libtool distdir dvi \
|
||||
dvi-am html html-am info info-am install install-am \
|
||||
install-data install-data-am install-dvi install-dvi-am \
|
||||
install-exec install-exec-am install-html install-html-am \
|
||||
install-info install-info-am install-man install-man1 \
|
||||
install-pdf install-pdf-am install-ps install-ps-am \
|
||||
install-strip installcheck installcheck-am installdirs \
|
||||
maintainer-clean maintainer-clean-generic mostlyclean \
|
||||
mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
|
||||
uninstall uninstall-am uninstall-man uninstall-man1
|
||||
|
||||
|
||||
# Tell versions [3.59,3.63) of GNU make to not export all variables.
|
||||
# Otherwise a system limit (for SysV at least) may be exceeded.
|
||||
.NOEXPORT:
|
||||
140
man/cwebp.1
Normal file
140
man/cwebp.1
Normal file
@ -0,0 +1,140 @@
|
||||
.\" Hey, EMACS: -*- nroff -*-
|
||||
.TH CWEBP 1 "March 1, 2011"
|
||||
.SH NAME
|
||||
cwebp \- compress an image file to a WebP file
|
||||
.SH SYNOPSIS
|
||||
.B cwebp
|
||||
.RI [ options ] " input_file -o output_file.webp
|
||||
.br
|
||||
.SH DESCRIPTION
|
||||
This manual page documents the
|
||||
.B cwebp
|
||||
command.
|
||||
.PP
|
||||
\fBcwebp\fP compresses image using the WebP format.
|
||||
Input format can be either PNG, JPEG, or raw Y'CbCr samples.
|
||||
When using PNG, the transparency information (alpha channel) is currently
|
||||
discarded.
|
||||
.SH OPTIONS
|
||||
The basic options are:
|
||||
.TP
|
||||
.B \-o string
|
||||
Specify the name of the output WebP file. If omitted, \fBcwebp\fP will
|
||||
perform compression but only report statistics.
|
||||
.TP
|
||||
.B \-h, \-help
|
||||
A short usage summary.
|
||||
.TP
|
||||
.B \-H, \-longhelp
|
||||
A summary of all the possible options.
|
||||
.TP
|
||||
.B \-q float
|
||||
Specify the compression factor between 0 and 100. Small factor
|
||||
produce smaller file with lower quality. Best quality is achieved
|
||||
using a value of 100. The default is 75.
|
||||
.TP
|
||||
.B \-f int
|
||||
Specify the strength of the deblocking filter, between 0 (no filtering)
|
||||
and 100 (maximum filtering). A value of 0 will turn off any filtering.
|
||||
Higher value will increase the strength of the filtering process applied
|
||||
after decoding the picture. The higher the smoother the picture will
|
||||
appear. Typical values are usually in the range of 20 to 50.
|
||||
.TP
|
||||
.B \-preset string
|
||||
Specify a set of pre-defined parameters to suit a particular type of
|
||||
source material. Possible values are: \fBdefault\fP, \fBphoto\fP,
|
||||
\fBpicture\fP, \fBdrawing\fP, \fBicon\fP, \fBtext\fP.
|
||||
.TP
|
||||
.B \-sns int
|
||||
Specify the amplitude of the spatial noise shaping. Spatial noise shaping
|
||||
(or \fBsns\fP for short) refers to a general collection of built-in algorithms
|
||||
used to decide which area of the picture should use relatively less bits,
|
||||
and where else to better transfer these bits. The possible range goes from
|
||||
0 (algorithm is off) to 100 (the maximal effect). The default value is 80.
|
||||
.TP
|
||||
.B \-m int
|
||||
Specify the compression method to use. This parameter controls the
|
||||
tradeoff between encoding speed and the compressed file size and quality.
|
||||
Possible values range from 0 to 6. Default value is 4.
|
||||
When higher values are used, the encoder will spend more time inspecting
|
||||
additional encoding possibilities and decide on the quality gain.
|
||||
Lower value can result is faster processing time at the expense of
|
||||
larger filesize and lower compression quality.
|
||||
.TP
|
||||
.B \-af
|
||||
Turns auto-filter on. This algorithm will spend additional time optimizing
|
||||
the filtering strength to reach a well-balanced quality.
|
||||
|
||||
.SH ADDITIONAL OPTIONS
|
||||
More advanced options are:
|
||||
.TP
|
||||
.B \-sharpness int
|
||||
Specify the sharpness of the filtering (if used).
|
||||
Range is 0 (sharpest) to 7 (least sharp). Default is 0.
|
||||
.TP
|
||||
.B \-strong
|
||||
Use a stronger filtering than the default one (if filtering is being
|
||||
used thanks to the \fB\-f\fP option). Strong filtering is off by default.
|
||||
.TP
|
||||
.B \-segments int
|
||||
Change the number of partitions to use during the segmentation of the
|
||||
sns algorithm. Segments should be in range 1 to 4. Default value is 4.
|
||||
.TP
|
||||
.B \-size int
|
||||
Specify a target size (in bytes) to try and reach for the compressed output.
|
||||
Compressor will make several pass of partial encoding in order to get as
|
||||
close as possible to this target.
|
||||
.TP
|
||||
.B \-psnr float
|
||||
Specify a target PSNR (in dB) to try and reach for the compressed output.
|
||||
Compressor will make several pass of partial encoding in order to get as
|
||||
close as possible to this target.
|
||||
.TP
|
||||
.B \-pass int
|
||||
Set a maximum number of pass to use during the dichotomy used by
|
||||
options \fB\-size\fP or \fB\-psnr\fP. Maximum value is 10.
|
||||
.TP
|
||||
.B \-crop x_position y_position width height
|
||||
Crop the source to a rectangle with top-left corner at coordinates
|
||||
(x_position, y_position) and size width x height. This cropping area must
|
||||
be fully contained within the source rectangle.
|
||||
.B \-s width height
|
||||
Specify that the input file actually consists of raw Y'CbCr samples following
|
||||
the ITU-R Bt.601 recommendation, in 4:2:0 linear format.
|
||||
The luma plane has size \fBwidth\fP x \fBheight\fP.
|
||||
.TP
|
||||
.B \-map int
|
||||
Output additional ASCII-map of encoding information. Possible map values
|
||||
range from 1 to 6. This is only meant to help debugging.
|
||||
.TP
|
||||
.B \-pre int
|
||||
Specify a pre-processing filter. This option is a placeholder
|
||||
and has currently no effect.
|
||||
.TP
|
||||
.B \-v
|
||||
Print extra information (encoding time in particular).
|
||||
.TP
|
||||
.B \-quiet
|
||||
Do not print anything.
|
||||
.TP
|
||||
.B \-short
|
||||
Only print brief information (output file size and PSNR) for testing purpose.
|
||||
|
||||
.SH Examples:
|
||||
cwebp -q 70 picture.png -o picture.webp
|
||||
.br
|
||||
cwebp -sns 70 -f 50 -strong -af -size 60000 picture.png -o picture.webp
|
||||
|
||||
.SH
|
||||
.SH SEE ALSO
|
||||
.BR dwebp (1).
|
||||
.br
|
||||
Please refer to http://code.google.com/speed/webp/ for additional
|
||||
information.
|
||||
.SH AUTHOR
|
||||
\fBcwebp\fP was written by the WebP team.
|
||||
.br
|
||||
The latest source tree is available at http://www.webmproject.org/code
|
||||
.PP
|
||||
This manual page was written by Pascal Massimino <pascal.massimino@gmail.com>,
|
||||
for the Debian project (and may be used by others).
|
||||
52
man/dwebp.1
Normal file
52
man/dwebp.1
Normal file
@ -0,0 +1,52 @@
|
||||
.\" Hey, EMACS: -*- nroff -*-
|
||||
.TH DWEBP 1 "March 1, 2011"
|
||||
.SH NAME
|
||||
dwebp \- compress a WebP file to an image file
|
||||
.SH SYNOPSIS
|
||||
.B dwebp
|
||||
.RI [ options ] " input_file.webp
|
||||
.br
|
||||
.SH DESCRIPTION
|
||||
This manual page documents the
|
||||
.B dwebp
|
||||
command.
|
||||
.PP
|
||||
\fBdwebp\fP decompresses WebP files into PNG or PPM images.
|
||||
.SH OPTIONS
|
||||
The basic options are:
|
||||
.TP
|
||||
.B \-h
|
||||
Print usage summary.
|
||||
.TP
|
||||
.B \-o string
|
||||
Specify the name of the output file (as PNG format by default).
|
||||
.TP
|
||||
.B \-ppm
|
||||
Change the output format to PPM.
|
||||
.TP
|
||||
.B \-pgm
|
||||
Change the output format to PGM. The output consist of luma/chroma
|
||||
samples instead of RGB, using the ICM4 layout. This option is mainly
|
||||
for verification and debugging purpose.
|
||||
.TP
|
||||
.B \-v
|
||||
Print extra information (decoding time in particular).
|
||||
|
||||
.SH Examples:
|
||||
dwebp picture.webp -o output.png
|
||||
.br
|
||||
dwebp picture.webp -ppm -o output.ppm
|
||||
|
||||
.SH
|
||||
.SH SEE ALSO
|
||||
.BR cwebp (1).
|
||||
.br
|
||||
Please refer to http://code.google.com/speed/webp/ for additional
|
||||
information.
|
||||
.SH AUTHOR
|
||||
\fBdwebp\fP was written by the WebP team.
|
||||
.br
|
||||
The latest source tree is available at http://www.webmproject.org/code
|
||||
.PP
|
||||
This manual page was written by Pascal Massimino <pascal.massimino@gmail.com>,
|
||||
for the Debian project (and may be used by others).
|
||||
Loading…
Reference in New Issue
Block a user