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img2webp: convert a sequence of images to an animated webp

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Usage:

  img2webp [file-level options] [image files...] [per-frame options...]

File-level options (only used at the start of compression):
 -min_size ............ minimize size
 -loop <int> .......... loop count (default: 0, = infinite loop)
 -kmax <int> .......... maximum number of frame between key-frames
                        (0=only keyframes)
 -kmin <int> .......... minimum number of frame between key-frames
                        (0=disable key-frames altogether)
 -mixed ............... use mixed lossy/lossless automatic mode
 -v ................... verbose mode
 -h ................... this help

Per-frame options (only used for subsequent images input):
 -d <int> ............. frame duration in ms (default: 100)
 -lossless  ........... use lossless mode (default)
 -lossy ... ........... use lossy mode
 -q <float> ........... quality
 -m <int> ............. method to use

example: img2webp -loop 2 in0.png -lossy in1.jpg
                  -d 80 in2.tiff -o out.webp

Change-Id: I23771b90eaf0660f420d7ffd304e704155386286
This commit is contained in:
Pascal Massimino
2016-12-02 11:44:17 +01:00
parent ea72cd60cb
commit 03f40955a3
10 changed files with 493 additions and 4 deletions
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6
configure.ac
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@ -556,6 +556,11 @@ AS_IF([test "x$enable_gif" != "xno"], [
AM_CONDITIONAL([BUILD_ANIMDIFF], [test "${build_animdiff}" = "yes"])
AM_CONDITIONAL([BUILD_GIF2WEBP], [test "${build_gif2webp}" = "yes"])
if test "$enable_libwebpmux" = "yes"; then
build_img2webp=yes
fi
AM_CONDITIONAL([BUILD_IMG2WEBP], [test "${build_img2webp}" = "yes"])
dnl === check for WIC support ===
AC_ARG_ENABLE([wic],
@ -710,6 +715,7 @@ dwebp : yes
GIF support : ${gif_support-no}
anim_diff : ${build_animdiff-no}
gif2webp : ${build_gif2webp-no}
img2webp : ${build_img2webp-no}
webpmux : ${enable_libwebpmux-no}
vwebp : ${build_vwebp-no}
])