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12 Commits

Author SHA1 Message Date
Pascal Massimino
641cedccd3 imagedec: support metadata reading for WebP image decoding 
Needs to link imagedec.a to demux/libwebpdemux.a

Change-Id: Id8f4068718b0e4a1e84607bccd5af5419120c231
 2018-03-28 16:36:37 -07:00
Pascal Massimino
274daf5415 Add webpinfo tool. 
A command line tool to print out the chunk level structure of
WebP files along with basic integrity checks.

BUG=webp:330

Change-Id: Ic69f646f649abb655b1854621d99afedeed158d7
 2017-03-14 11:41:17 +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
James Zern
41cab7fe0f imageio/Android.mk: correct imagedec dependencies 
this relies on imageio_util; remove the reference for dwebp as this does
not directly rely on it.

Change-Id: I09b863ae0dfe2e9c4929ff6b77e9310bb870ce35
 2016-09-08 20:03:07 -07:00
Pascal Massimino
af1ad3e2dd libimageenc.a: extract image-saving code from dwebp 
BUG=webp:277
Change-Id: I2c0e1df7b13b1f77474b5478048fef022e90f77a
 2016-09-08 19:11:26 -07:00
James Zern
ebee57f4d1 move imageio/example_util.[hc] (back to) examples/ 
decoding and file i/o have been split to imageio, all that remains is
some string routines used for parameter parsing in the examples

Change-Id: I77386cd8aa39124b9e14c95fdbaa17ea4ab5bb24
 2016-07-21 20:41:03 -07:00
James Zern
bdda5bd4bf split example_util.h 
move ExUtil*File to imageio_util.h
ExUtil*WebP* to webpdec.h

string parsing routines remain

Change-Id: I0560c4a74e86710d83bc4b5b234f1b5ef9a86f9d
 2016-07-21 19:14:58 -07:00
James Zern
c379b55a93 move examples/{example_util,image_dec} to imageio/ 
Change-Id: I2508c786a095a2a75bebf766210c64e2af88f9b6
 2016-07-19 19:06:29 -07:00
Pascal Massimino
ae2a7222ce collect all decoding utilities from examples/ in libexampledec.a 
adds a generic examples/image_dec.[ch] entry point too.

WebPGuessImageType() can be used to infer image type.

Change-Id: I8337e7b6ad91863c9cf118e4791668d2d175079b
 2016-06-01 05:39:55 +00:00
James Zern
6cef0e4fa4 examples/Android.mk: add webpmux_example target 
renamed from 'webpmux' to avoid name clash with the library module name

Change-Id: I33bbdbdcb25a6f35bd85c9a0dbbb93b2428b05f3
 2015-02-25 16:38:21 -08:00
James Zern
d51467841e examples/Android.mk: add cwebp 
Change-Id: Id8edd3c17d82e4ab0087c315cd3ead1cb285e714
 2014-06-17 23:41:12 -07:00
James Zern
ca0fa7c7a5 Android.mk: move dwebp to examples/Android.mk 
this depends on the top-level Android.mk for shared flags

Change-Id: Id418eb9639e839518a921ffcb6a376ce10aafbd2
 2014-06-17 23:41:01 -07:00