dany/libwebp
1
0
Fork 0
mirror of https://github.com/webmproject/libwebp.git synced 2025-07-13 14:34:33 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

a WebP encoder

Browse Source 
converts PNG & JPEG to WebP

This is an experimental early version, with lot of room
of later optimizations in both speed and quality.

Compile with the usual `./configure && make`
Command line example is examples/cwebp

Usage:

   cwebp [options] -q quality input.png -o output.webp

where 'quality' is between 0 (poor) to 100 (very good).
Typical value is around 80.

More encoding options with 'cwebp -longhelp'

Change-Id: I577a94f6f622a0c44bdfa9daf1086ace89d45539
This commit is contained in:
Pascal Massimino
2011-02-18 23:33:46 -08:00
parent 81c966215b
commit f61d14aabf
36 changed files with 9050 additions and 284 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
configure.ac
View File

@ -36,7 +36,33 @@ AC_CHECK_HEADER(png.h,
AC_SUBST(PNG_LIBS)
AC_SUBST(PNG_INCLUDES)
dnl === check for JPEG support ===
JPEG_INCLUDES=""
JPEG_LIBS=""
AC_ARG_WITH(jpegincludedir,
[--with-jpegincludedir=DIR use JPEG includes from DIR],
JPEG_INCLUDES="-I$withval")
AC_ARG_WITH(jpeglibdir,
[--with-jpeglibdir=DIR use JPEG libraries from DIR],
[JPEG_LIBS="-L$withval"])
AC_CHECK_HEADER(jpeglib.h,
AC_CHECK_LIB(jpeg, jpeg_set_defaults,
[JPEG_LIBS="$JPEG_LIBS -ljpeg"
JPEG_INCLUDES="$JPEG_INCLUDES -DWEBP_HAVE_JPEG"
AC_DEFINE(WEBP_HAVE_JPEG, [1], [Set to 1 if JPEG library is installed])
],
AC_MSG_WARN(Optional jpeg library not found),
[$MATH_LIBS]),
AC_MSG_WARN(jpeg library not available - no jpeglib.h)
)
AC_SUBST(JPEG_LIBS)
AC_SUBST(JPEG_INCLUDES)
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES([Makefile examples/Makefile src/dec/Makefile])
AC_CONFIG_FILES([Makefile src/Makefile examples/Makefile src/dec/Makefile src/enc/Makefile])
AC_OUTPUT