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12 Commits

Author SHA1 Message Date
jzern@google.com
0825faa4c1 img2webp: add -sharp_yuv/-near_lossless 
Both are global settings. Modifying them at the frame level is left as a
follow up based on need.

Bug: b/272739498
Change-Id: If15256c052f73fe3df56be5e0095e76d9870cc0f
 2023-03-17 09:35:29 -07:00
James Zern
617cf03656 image_dec: add WebPGetEnabledInputFileFormats() 
and use it to output the types supported in the examples

Change-Id: Ia6b8624a2146cf72c679129065a72f215644e1e9
 2022-03-26 15:37:25 -07:00
Yannis Guyon
a80954a1d9 Reword img2webp synopsis command line 
See https://bugs.chromium.org/p/webp/issues/detail?id=549

Change-Id: I75562d2ad021d8ec107eb4ced5b28e0abf373324
 2022-01-05 10:15:28 +01:00
Pascal Massimino
906c1fcd61 make ImgIoUtilReadFile use WebPMalloc instead of malloc 
This is a minor technical change in API in case a special allocator
was used in WebPMalloc.

Change-Id: Idb78a9150d006f158c1a9538525097749e42e7f7
 2020-10-16 15:40:13 +02:00
James Zern
b6284d8247 img2webp: add help note about arguments from a file 
this was added in:
94a8377b extract the command-line parsing helpers to example_util

and matches the help in webpmux

https://groups.google.com/a/webmproject.org/d/msg/webp-discuss/DJs-w_-Id6o/svFXs2CqBgAJ

BUG=webp:101

Change-Id: I2944d1fb1ed3030c356960be2a6c8de15a79311f
 2018-10-26 06:16:56 +00:00
Yannis Guyon
9cf9841b5e libwebp: Unicode command tools on Windows 
Define macros in examples/unicode.h to use Unicode argv
on Windows. Keep char everywhere on Unix since it handles
UTF-8 without any change.

Impact:
 - All fopen () and SHCreateStreamOnFile(),
 - All fprintf() printing file paths,
 - All strcmp() used with "-",
 - File path parsing,
 - Gif reading.

Concerned executables from examples/ and extras/:
  anim_diff, anim_dump, vwebp, vwebp_sdl,
  cwebp, dwebp, gif2webp, img2webp,
  webpmux, webpinfo, webp_quality, get_disto

When compiled on Windows with Unicode enabled, webpmux and
img2webp will not work when used with an argument file and
will print "Reading arguments from a file is a feature
unavailable with Unicode binaries."

BUG=webp:398

Change-Id: Ic55d222a3ce1a715f9c4cce57ecbe2705d5ce317
 2018-10-17 13:19:40 +02:00
Pascal Massimino
64a57d0587 add -version option to anim_dump,anim_diff and img2webp 
This is to harmonize the -h/-version options on all our examples.

+ added GetAnimatedImageVersions() method to anim_util.*

Change-Id: I2304a1c29e310682e97f236d3867274a192a7a09
 2018-04-03 11:46:17 -07:00
skal
94a8377b3e extract the command-line parsing helpers to example_util 
+ make img2webp tool use the text-file parsing option too.

Change-Id: I1976e651bbe8b4701abceba89e054b4fb3c35696
 2018-02-08 08:11:31 +00:00
James Zern
0d8e05880c img2webp: treat -loop as a no-op w/single images 
or in cases where duplicates have been reduced to one

Change-Id: I145cd61b6792b021617f1234f0ba36e2a3128d84
 2017-01-25 08:17:39 +00:00
James Zern
6451709e72 img2webp,get_disto: fix image decode w/WIC builds 
similar to cwebp, attempt ReadPictureWithWIC() first

Change-Id: Ifb83aaa457be59c95b201bf8bd6b0877a6a253ed
 2017-01-24 15:12:08 -08:00
Pascal Massimino
bded7848ea img2webp: fix default -lossless value and use pic.argb=1 
Change-Id: I0e5350928c1e58e0901303ee979fb4587f25d6bc
 2016-12-02 13:19:02 +01:00
Pascal Massimino
03f40955a3 img2webp: convert a sequence of images to an animated webp 
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
 2016-12-02 11:44:17 +01:00