Commit Graph

415 Commits

Author SHA1 Message Date
Urvang Joshi
dcf652223a Support for 'do not blend' option in vwebp
Change-Id: I563e192fa727816d11d8647c559ec407205ef40b
2013-08-14 19:51:46 -07:00
Urvang Joshi
6284854bd5 Support for "Do not blend" in mux and demux libraries
Change-Id: I9566a8e2d059fe1ebd9ca99c7e13311bf3f8f281
2013-08-12 11:49:00 -07:00
Urvang Joshi
8ba1bf61a0 Stricter check for presence of alpha when writing lossless images
Earlier, all lossless images were assumed to contain alpha.
Now, we use the 'alpha_is_used' bit from the VP8L bitstream to determine
the
same.

Detecting an absence of alpha can sometimes lead to much more efficient
rendering, especially for animated images.

Related: refine mux code to read width/height/has_alpha information only
once
per frame/fragment. This avoid frequent calls to VP8(L)GetInfo().

Change-Id: I4e0eef4db7d94425396c7dff6ca5599d5bca8297
2013-07-19 11:55:09 -07:00
James Zern
a34a502989 pngdec: output error messages from libpng
Change-Id: I1981562eeab2ad07eb797cea589a033943e7f21d
2013-07-09 17:33:21 -07:00
James Zern
eeada35cd6 pngdec: add missing include
strcmp -> string.h

Change-Id: I07392d07cbad420f5d4f3abfd3ffde8626f0c0f2
2013-06-25 23:32:19 -07:00
Urvang Joshi
54b65108ad gif2webp: If aligning to even offsets, extra pixels should be transparent
This is to ensure that the output WebP image is consistent with original
GIF when displayed against any background color.

Change-Id: I14218848153eb40358aa4ce331b2543d2fc2e86c
2013-06-24 15:18:35 -07:00
James Zern
ffae9f31e8 wicdec: silence a format warning
from x86_64-w64-mingw32-gcc

examples/wicdec.c: In function ‘ExtractICCP’:
examples/wicdec.c:131:21: warning: format ‘%u’ expects argument of type
‘unsigned int’, but argument 4 has type ‘size_t’ [-Wformat]

Change-Id: I6642dae62265a2276ae9ac96dd8ce6f1e2d37ca5
2013-06-14 18:44:59 -07:00
James Zern
90e2ec5a1b Merge "probe input file and quick-check for WebP format." 2013-06-10 12:29:58 -07:00
Pascal Massimino
830f72b7e9 probe input file and quick-check for WebP format.
Error message is clearer that 'can't create demux object'.

Change-Id: Iec008601892f7cd8399e1948751747ac23305eef
2013-06-10 05:46:22 -07:00
James Zern
d640614d54 update copyright text
rather than symlink the webm/vpx terms, use the same header as libvpx to
reference in-tree files

based on the discussion in:
https://codereview.chromium.org/12771026/

Change-Id: Ia3067ecddefaa7ee01550136e00f7b3f086d4af4
2013-06-06 23:09:14 -07:00
skal
bec11092ca fix EXIF parsing in PNG
'exiftool' puts an 'APP1' chunk for exif, e.g.:
https://metacpan.org/source/EXIFTOOL/Image-ExifTool-5.87/lib/Image/ExifTool/PNG.pm#L305

Change-Id: I313d3e6945898526b8a4baf3d9016a2591a1a817
2013-06-05 10:07:48 +02:00
Pascal Massimino
b6e65f3d35 Merge "fix warnings for vs9 x64" 2013-06-03 22:27:03 -07:00
Pascal Massimino
438946dcc6 fix warnings for vs9 x64
Change-Id: Id022d48a0a898a8bf7dce437b078da6c98afd75c
2013-06-01 22:48:08 -07:00
James Zern
518f2cd738 cosmetics: gif2webp: fix indent
Change-Id: I9b7aaefb33b4101bcb572577ce17fb3953599c2b
2013-05-29 16:00:05 -07:00
skal
764fdffaac fix a memory leak in gif2webp
(rgba->yuv allocates memory)
Also fixed few warning and cleaned the code up.

Change-Id: Id904ad3ad8802ea9fc3d34247d27193dfa7b0b99
2013-05-22 23:49:24 +02:00
skal
3e59a74d72 fix two minor memory leaks in webpmux
(only occur in case of error)

Change-Id: Icab69bb364b77f8eae6cae91047354c27e610602
2013-05-22 00:58:53 +02:00
Pascal Massimino
5199eab516 Merge "add uncompressed TIFF output support" 2013-05-13 08:59:48 -07:00
Pascal Massimino
a3aede9739 add uncompressed TIFF output support
new option: 'dwebp -tiff ...'
This is a very simple uncompressed-tiff writing method.

Change-Id: Ie2182c8498bce570de3cde363abe1099e18596cb
2013-05-11 01:46:24 -07:00
Urvang Joshi
043e1ae4bd gif2webp: Fix signed/unsigned comparison mismatch
Change-Id: I355f0614424276550db71b24e5bb1948e5c6894c
2013-05-10 13:37:20 -07:00
pascal massimino
ed6f53086b Merge "Add GetCanvasSize() method to mux" 2013-05-08 01:53:22 -07:00
Urvang Joshi
fffefd18c3 Add GetCanvasSize() method to mux
Change-Id: If910f5024f4c301a92e6c2e8ee9c315a103c5df7
2013-05-07 12:47:48 -07:00
pascal massimino
732da8d0f0 Merge "configure: add GLUT detection; build vwebp" 2013-05-07 12:15:50 -07:00
James Zern
0e513f7ae3 configure: add GLUT detection; build vwebp
Change-Id: I7f0964db2d04c22ff9ec274e8cd1cbed7379a165
2013-05-07 11:42:15 -07:00
Pascal Massimino
a4e1cdbbe8 Remove the gcc compilation comments
They went out of sync some time ago, and are
no longer really required since we have them
buildable from makefile.unix

Change-Id: Ica2dcf5c55f44365598f832f55204d123d7aa601
2013-05-01 15:01:37 -07:00
Urvang Joshi
6393fe4b7c Cosmetic fixes
Change-Id: I7d5a337077ba1d0406769190fef9b47146ed8b24
2013-04-26 15:55:42 -07:00
pascal massimino
5369a80fd4 Merge "prevent signed int overflow in left shift ops" 2013-04-19 00:13:16 -07:00
Urvang Joshi
b26e5ad540 gif2webp: Fix ICC and XMP support
Change-Id: Ib5aafef388bd191610e4cc2f8180f35cd454f1d3
2013-04-18 14:19:25 -07:00
James Zern
f4f90880a8 prevent signed int overflow in left shift ops
force unsigned when shifting by 24.

Change-Id: Ie229d252e2e4078107cd705b09397e686a321ffd
2013-04-13 10:57:31 -07:00
Pascal Massimino
b66caee410 dwebp: add support for BMP output
Supports alpha output too.

Change-Id: I42ea0bf7b6bbb420f0e537d372a3b13fe00528a9
2013-04-09 18:52:34 -07:00
Urvang Joshi
b68912af2c pngdec: Avoid a double-free.
Earlier, at line#275, if ok == 0, it would have triggered a double free
of 'rgb'.

Change-Id: Iaee1f35824a66f6e4b488e523416f73b87c5ec30
2013-04-05 11:24:59 -07:00
Pascal Massimino
e7d9548c9b add WebPBlendAlpha() function to blend colors against background
new option: -blend_alpha 0xrrggbb
also: don't force picture.use_argb value for lossless. Instead,
delay the YUVA<->ARGB conversion till WebPEncode() is called.
This make the blending more accurate when source is ARGB
and lossy compression is used (YUVA).
This has an effect on cropping/rescaling. E.g. for PNG, these
are now done in ARGB colorspace instead of YUV when lossy compression
is used.

Change-Id: I18571f1b1179881737a8dbd23ad0aa8cddae3c6b
2013-04-02 19:14:30 -07:00
James Zern
53c77afc52 Merge "gif2webp: Bgcolor fix for a special case" into 0.3.0 2013-03-25 16:33:51 -07:00
Urvang Joshi
a5ebd143d6 gif2webp: Bgcolor fix for a special case
When transparent color index and background color index are same,
we should set background color to 0x00ffffff (transparent).

For this, we delay setting the background color until we have read the
first frame.

Change-Id: I443609b9c7697a2b94a66992460cff8465b3c127
2013-03-25 16:30:27 -07:00
James Zern
6378f23876 Merge "vwebp/animation: fix background dispose" into 0.3.0 2013-03-25 16:24:02 -07:00
James Zern
04c7a2ecf0 vwebp/animation: fix background dispose
buffer the last frame's details to perform DISPOSE_BACKGROUND on the
image's area, rather than the entire canvas.

also fixes transparent backgrounds with animated images

Change-Id: I53e4d70c441e1eeb136f1d01e7c88de4f9ecff53
2013-03-25 13:39:27 -07:00
James Zern
14d42af207 examples: don't use C99 %zu
this would require a PRIuS or similar macro for proper platform
compatibility (Visual Studio for instance would be variants of %lu)

Change-Id: I1af530c7c358c91b845acde1d8c12ef46c2ef746
2013-03-20 16:59:35 -07:00
James Zern
a788644f93 dwebp: warn when decoding animated webp's
the decode will fail; provide a bit more background info

Change-Id: Iecccb09cf0fa9f8c1c3e87636a55e1f251dee023
2013-03-20 13:59:38 -07:00
James Zern
723847d5d7 gif2webp: only write error messages to stderr
also output something if -o is not given, but the process succeeded

Change-Id: I466c377f0cbf8c9f45bb1839191b04dada9c5f0f
2013-03-18 11:13:35 -07:00
James Zern
59423a2486 gif2webp: fix crash on open failure with libgif5
output the current gif_error and use it instead of the NULL context to
retrieve an error message.

Change-Id: Ib761ebd36b3ddd6288375de46e671022d2381083
2013-03-17 18:06:39 -07:00
James Zern
9acb17dea4 gif2webp: silence a unused param warning
Change-Id: I694857fc6adb011f19d14780de4f8c71e2719707
2013-03-17 17:04:54 -07:00
James Zern
096a8e321d Merge "vwebp: add color profile support" into 0.3.0 2013-03-16 11:58:19 -07:00
James Zern
ddfee5dce5 vwebp: add color profile support
uses qcms from Mozilla / Chromium:

http://hg.mozilla.org/mozilla-central/file/0e7639e3bdfb/gfx/qcms
http://src.chromium.org/viewvc/chrome/trunk/src/third_party/qcms

Change-Id: I674e16adb6ca085719816e984acbf00721b28fb0
2013-03-16 11:55:00 -07:00
James Zern
0d6927d3cd Merge "Mark fragment options as experimental in webpmux" into 0.3.0 2013-03-16 10:45:52 -07:00
Urvang Joshi
5dbd403029 Mark fragment options as experimental in webpmux
This is to disallow any accidental creation/parsing of fragmented images
by users.

Change-Id: I970a4bd5ec5a522867b24a0c9efb45164ae67047
2013-03-16 04:07:19 -07:00
James Zern
7dd288f098 cwebp: fix build
METADATA_ICCP was renamed to METADATA_ICC in
  d8dc72a examples: normalize icc related program arguments
but was merged without rebasing after
  0bc4268 cwebp: output metadata statistics

Change-Id: Ie317208488cc851d5d21300591c91cebf5abd4a7
2013-03-15 16:42:58 -07:00
James Zern
50eeddad3d Merge "examples: normalize icc related program arguments" into 0.3.0 2013-03-15 16:37:30 -07:00
James Zern
013023e771 vwebp: replace doubles w/floats where appropriate
Change-Id: Ief1ef5213a5f357004922989e6e5d97ef3561a23
2013-03-15 12:17:45 -07:00
James Zern
7b6a26cff9 Merge "cwebp: output metadata statistics" into 0.3.0 2013-03-14 19:09:58 -07:00
James Zern
d8dc72a039 examples: normalize icc related program arguments
use 'icc' rather than 'iccp'.

Change-Id: I9667f286bfa1cfeb0ac49148ba341d268b051b98
2013-03-14 19:05:22 -07:00
James Zern
d40c98e172 Merge "webpmux binary: tiny style fix" into 0.3.0 2013-03-14 00:02:58 -07:00
James Zern
0bc42689e4 cwebp: output metadata statistics
Change-Id: Ida33555bab3c9330e82158863c355e51f90d0a76
2013-03-13 22:57:54 -07:00
Urvang Joshi
7681bb961d webpmux binary: tiny style fix
Change-Id: I195929d79940cd3d060977ef7feee9cd13f7d041
2013-03-13 18:10:56 -07:00
James Zern
a3dd3d0f9e avoid installing example_util.h
older versions of automake (1.9) it seems would install the headers
regardless of the fact that the library was marked noinst_

this change follows some of the header guidance found here:
http://www.gnu.org/software/automake/manual/automake.html#Headers

Change-Id: I80acc00935097ebf36004e9871574fb9ef09aabf
2013-03-13 15:48:34 -07:00
skal
9bfbdd144f 1.5x-2x faster encoding for method 3 and up
using token-buffer (that is: slightly more memory. O(output_size))

This change is ON by default. To return to previous behaviour, use
'cwebp -low_memory' or set config.low_memory to true.

Side-effect of this new mode: it forces 1 partition only (which was
default anyway), and makes some statistics about the bitstream
no longer available. cwebp will no longer report 'intra4-coeffs', etc.

This mode also doesn't work (yet) with multi-pass, and -low_memory
is currently forced for multi-pass.

also: reversed the flag: USE_TOKEN_BUFFER -> DISABLE_TOKEN_BUFFER
also: fixed the kAverageBytesPerMB estimate

Change-Id: I4ea80382038d6df4309663e0cb7bd88d9bca9cf1
2013-03-11 17:01:33 -07:00
pascal massimino
847b49243e Merge "vwebp: use magenta for 'i'nfo display" 2013-03-08 05:17:57 -08:00
pascal massimino
25ea46bdee Merge "vwebp: add keyboard shortcuts to help output" 2013-03-08 05:15:17 -08:00
James Zern
bea7ccaffd vwebp: use magenta for 'i'nfo display
replaces black

Change-Id: I8ca52c187c7b4b890378dec2a526e51c7819f7e1
2013-03-07 19:42:41 -08:00
James Zern
8fab161a3f webpmux: correct -frame param order in help output
params were reordered to +duration+x offset+...

Change-Id: I99e8a70c8a645552238294ab82c3f7ffe01e70bd
2013-03-07 19:15:37 -08:00
James Zern
03cc23d6f9 vwebp: add keyboard shortcuts to help output
Change-Id: Ida94b3f99115ddeb6b6eec1411918f99e964ed91
2013-03-07 19:13:00 -08:00
Urvang Joshi
fdeeb01dc6 gif2webp: Be lenient about background color index.
Change-Id: I4440cffff4e8cefb3b0327a9b4925e05a7bbfc50
2013-03-05 13:41:55 -08:00
skal
f817930a55 multi-threaded alpha encoding for lossy
new option: 'cwebp -mt ...'
new config flag: config.thread_level
(allowed thread_level are 0 or 1 for now. Maybe more later...)
If -mt is activated (and WEBP_USE_THREAD is used for compile), the alpha-compression
will be done in parallel to RGB coding for lossy. Can save quite a bit of latency...
Has no effect for lossless encoding.

Change-Id: I769d0bf90e7380cf99344ad62cd77277f4df5a46
2013-03-01 10:04:08 +01:00
Urvang Joshi
a5042a3240 GetVersion() methods for mux and demux
Also use the same in example binaries.

Change-Id: Id4bb4c4231a6b8fe9ed4370a6f46567c52a04a17
2013-02-26 14:22:06 -08:00
James Zern
3151669b15 wicdec + dwebp cosmetics: normalize formatting
- drop mixed use of Hungarian notation
- fix some line continuations

Change-Id: I9e6ec5cd6c746eb78048cf3532586fd93cef4ddb
2013-02-15 20:39:45 -08:00
Pascal Massimino
92668da6f2 change default filtering parameters:
* type is now 'strong'
  * strength is now '60'

These help with gradients and blocking

Change-Id: Ie1c8265c557306ef5e9ccefacf43e10946e55370
2013-02-15 01:09:32 -08:00
skal
5c3e381b2f Merge "add a -jpeg_like option" 2013-02-13 22:17:58 -08:00
James Zern
c9f1649012 wicdec: add alpha support for paletted formats
Fixes issue #141.

Change-Id: I5d8163329a9e363da9db9d70d25edeb29da32e9e
2013-02-06 23:29:32 -08:00
James Zern
e7ea61eb75 wicdec: silence some warnings
-Wformat, -Wmissing-field-initializers and size type related

Change-Id: I92b1c7cc485bf59f94b5c0f8bb2137d87604f831
2013-02-06 23:16:50 -08:00
skal
e895059a05 add a -jpeg_like option
This option remaps internal parameters to better match
the expected compression curve of JPEG and produce output files
of similar size, but with better quality.

Change-Id: I96a1cbb480b1f6a0c6845a23c33dfd63f197b689
2013-02-06 14:19:16 +01:00
James Zern
7c732e59f4 cwebp: centralize WebPCleanupTransparentArea()
this can be safely called whether the picture has alpha or not

Change-Id: I0047fd4c110f1072f183f3d340682502bd6623d7
2013-02-04 15:44:26 -08:00
James Zern
7381254e9a Merge "wicdec: add ICC profile extraction" 2013-02-04 15:43:39 -08:00
James Zern
e83ff7decd wicdec: add ICC profile extraction
Change-Id: I4522cdd5a529f802f1eb566b6d94539612e0976b
2013-02-02 10:40:49 -08:00
pascal massimino
146c6e3be8 Merge "cosmetics: pngdec: normalize default label location" 2013-02-02 00:18:37 -08:00
James Zern
1dfee6dbea cosmetics: pngdec: normalize default label location
Change-Id: I25dd0e61898af3fcaff3d17cddedd3d39d4930aa
2013-02-01 20:37:05 -08:00
James Zern
88d382a042 cwebp: cleanup after memory_writer
always initialize the memory_writer so it can be unconditionally freed
on exit

Change-Id: I9226addb588309446ec94abadfdde201f23195d2
2013-02-01 19:17:26 -08:00
skal
66c810bc3c add a -yuv option to dwebp (very similar to -pgm)
It will decode to raw (flat) YUV format, similar to what
cwebp can take as input. Makes the PSNR/SSIM calculation easier.

Change-Id: Iebfaedfc0bedc70c169b24ae4aabc701488d0644
2013-01-28 23:22:14 +01:00
Pascal Massimino
126c035f3f remove some more -Wshadow warnings
Change-Id: Icaba088b9a74732137bd35d82854eed858ec88f8
2013-01-25 00:44:31 -08:00
James Zern
522e9d6108 Merge "cwebp: enable '-metadata'" 2013-01-24 20:04:09 -08:00
James Zern
76ec5fa1b6 cwebp: enable '-metadata'
This copies metadata selected by -metadata from the input to the output
if present.
Currently there is no WIC support for Windows builds.

Change-Id: I34fb2443729d80ffe3a6da0979d9f6fa9b3fe536
2013-01-24 19:52:50 -08:00
Vikas Arora
a941a3463e Fixed few nits in the build files.
Fixed the nits from last change (Provide an option to build decoder
library).

Change-Id: I7d8675b8156dc63cf21ef64810722552e7fb59f6
2013-01-23 13:22:06 -08:00
James Zern
9161be863d Merge "cwebp: extract WIC decoding to its own module" 2013-01-23 12:44:22 -08:00
Vikas Arora
0aeba52852 Provide an option to build decoder library.
When the config option '--enable-libwebpdecoder' is specified, the
lean decoder library 'libwebpdecoder' will be created in addition to
libwebp. Also dwebp binary will be linked to libwebpdecoder, if this
config option is specified.

Change-Id: I9de3e149b59c9a8390fae2ba660941749640e54a
2013-01-23 11:43:36 -08:00
James Zern
a452a5554a cwebp: extract WIC decoding to its own module
Change-Id: I8e3e20787f6c3cc0616bd33beb2a6ccdda1e04f7
2013-01-22 18:31:28 -08:00
skal
0d19fbff51 remove some -Wshadow warnings
these are quite noisy, but it's not a big deal to remove
them.

Change-Id: I5deb08f10263feb77e2cc8a70be44ad4f725febd
2013-01-22 23:06:28 +01:00
James Zern
7eaee9f1ac cwebp: add -metadata option
currently has no effect except to disable metadata extraction from the
input when the value is 'none'.

Change-Id: Ic50d4c9d634cc1f6b72ae4e130e99736c85a6477
2013-01-14 17:44:54 -08:00
James Zern
36c52c2cf1 tiffdec: use toff_t for exif ifd offset
versions < 4.0.0 used uint32 interchangeably, but with 4.0.0 toff_t
became 64-bit and TIFFTAG_EXIFIFD began returning it rather than
TIFF_LONG/uint32.

Change-Id: I42492bd24613a884c7496e7bfc0c5d892758bce9
2013-01-10 21:33:24 -08:00
James Zern
7c8111e4a8 Merge "cwebp/tiffdec: add TIFF metadata extraction" 2013-01-10 15:52:05 -08:00
pascal massimino
1ab5b3a7bd Merge "configure: fix --with-gifincludedir" 2013-01-08 13:54:23 -08:00
James Zern
03c749ebb8 configure: fix --with-gifincludedir
GIF_INCLUDES were not being used by examples/Makefile.am

Change-Id: I981ad473f6efe24f095e2b9cc8b133d6ae3658b6
2013-01-08 12:39:43 -08:00
Urvang Joshi
8b650635df multiple libgif versions support for gif2webp
Make it work for libgif v5.0+, for which a couple of APIs have changed.

Change-Id: I6dd49bb5bf1b60f96f3a164d58ef2ef19281c96b
2013-01-08 11:52:24 -08:00
Urvang Joshi
476e293fe8 gif2webp: Use DGifOpenFileName()
This removes some unnecessary code.

Change-Id: Ic87baa402362f43b30d7c4a75be2f58e8f13f4a1
2013-01-08 11:07:13 -08:00
James Zern
b50f277bc7 tiffdec: correct format string
the expression using dircount will be promoted to int when tdir_t is an
unsigned short.
quiets:
warning: format specifies type 'unsigned short' but the argument has
      type 'int' [-Wformat]

Change-Id: If2e8c27454826556178b0a972aaed272d5fbfa07
2013-01-07 19:06:20 -08:00
pascal massimino
2b9048e324 Merge "tiffdec: check error returns for width/height" 2012-12-22 06:29:23 -08:00
James Zern
a1b5a9a3e0 Merge "cwebp/tiff: use the first image directory" 2012-12-21 08:37:11 -08:00
James Zern
079423f5c5 tiffdec: check error returns for width/height
Change-Id: I1399a7b75aea54044f30c6a53ac11843c1e75877
2012-12-20 22:33:52 -08:00
pascal massimino
d62824af42 Merge "cwebp/jpegdec: add JPEG metadata extraction" 2012-12-20 22:25:46 -08:00
pascal massimino
03afaca4a2 Merge "cwebp: add PNG metadata extraction" 2012-12-20 22:20:12 -08:00
James Zern
2c724968d2 cwebp/jpegdec: add JPEG metadata extraction
the values of EXIF/XMP/ICC are unused and Extended XMP for payloads >
64k is unsupported.

Change-Id: If721aa2009335ce090148b7ecd7ea8459f9b942d
2012-12-20 18:35:38 -08:00
James Zern
dba64d91bb cwebp: add PNG metadata extraction
the values of XMP/EXIF/ICC are currently unused.

Change-Id: I39d78b9a179f2d36c9c8ea12776bfdf6d8d18663
2012-12-20 18:32:09 -08:00
James Zern
2914ecfd56 cwebp/tiffdec: add TIFF metadata extraction
currently the values of XMP/ICC are unused and EXIF is ignored.

Change-Id: I1d8b73bde4db2768f117158f986aadbaaec45804
2012-12-19 18:26:05 -08:00
James Zern
bd0025579f cwebp/tiff: use the first image directory
tiffdec does not support and warns about multi-directory images.
previously, the code would read all the directories and thus attempt to
use the last rather than the first as the message suggests.

Change-Id: I3a10c778e6e924a3df75b41c26a9c03afb761044
2012-12-15 18:49:38 -08:00
James Zern
df7aa07605 Merge "Cleanup around jpegdec" 2012-12-14 19:27:49 -08:00
James Zern
6bf208748c add examples/metadata.c
relocates the static functions from metadata.h and adds MetadataCopy()
to the interface

Change-Id: I28bfa9233d3dd70dddf6b561fe0bf4be378db1ec
2012-12-11 18:10:09 -08:00
skal
1bd287a6e4 Cleanup around jpegdec
* change some (*func_ptr) construct to func_ptr simply.
  * remove one memcpy
  * group #include related to decoding together

Change-Id: If751cfbd9e78be75c57fb60fc9c937900c2c8fe0
2012-12-11 11:02:39 +01:00
James Zern
d3dace2ff0 cosmetics: jpegdec
- squash some whitespace
- remove unnecessary pointer check

Change-Id: I06208566a5621786479956ea658434f5c4d62fcc
2012-12-10 23:26:11 -08:00
James Zern
1c1c5646a5 cwebp: extract tiff decoding to its own module
Change-Id: If98d0d37de34b63ac10d826150237b5f99446532
2012-12-10 22:37:04 -08:00
James Zern
6a871d66a4 cwebp: extract jpeg decoding to its own module
Change-Id: I45e1f0fa7b34286dd98926e0485e5a8ab1964570
2012-12-07 20:12:46 -08:00
James Zern
2ee228f9a5 cwebp: extract png decoding to its own module
Change-Id: I80dd09fe1f1c6317e9d0cdd422438bda11b43ed5
2012-12-07 20:02:41 -08:00
James Zern
63aba3aef1 cwebp: add metadata framework
unused currently, but the intent is to allow each format to populate
exif/xmp/icc with cwebp then transferring it to the webp file.

Change-Id: I0514f62de52fa7f89c595ee7ef2ad7dced910a41
2012-12-06 14:29:10 -08:00
Urvang Joshi
23782f95b4 Separate out mux and demux code and libraries:
- Separate out mux.h and demux.h
- muxtypes.h: new header for data types common to mux/demux
- Move some misc read/write utilities to utils/utils.h
- Remove some duplicate methods.
- Separate out mux/demux libraries

Change-Id: If9b9569b10d55d922ad9317ef51710544315d6de
2012-11-19 11:40:18 -08:00
James Zern
540790ca6b gif2webp.c: add a note about prerequisites
Change-Id: I25a88f13b0c38c5968b5c4a3be0955e18e990723
2012-11-15 22:31:55 -08:00
Urvang Joshi
c40efca157 gif2webp build support with autoconf tools
Change-Id: I51a007e7931f05f2eb2ac062038309c2127df3fd
2012-11-15 11:04:12 -08:00
skal
41a6ced92e user GLfloat instead of float
Change-Id: I1af65f9a6046835cd4d390f37ccb0e659016ba1d
2012-11-15 09:35:01 +01:00
skal
b542611964 fix indentation
Change-Id: Ieb22b158d52b16f9782a7e747dd5edbf29099ec5
2012-11-15 09:34:34 +01:00
skal
68f282f79c * handle offset in anim viewer 'vwebp'
* fix gif2webp to handle disposal method and odd offset correctly

+ remove -scale and -crop option from vwebp, since it'll be broken
  with offsets and fragments. Needs a revisit.
+ remove a warning in gif2web

Change-Id: If04c6d085806e32540f2f15a37244c4407b719b3
2012-11-15 09:15:04 +01:00
skal
4860008483 Change the order of -frame argument to be more natural
Now, its: +duration+xoffset+yoffset+disposal
+disposal can be omitted and will default to +0 (NONE)
additionally, +xoffset+yoffset can be omitted and will default to +0+0

Change-Id: I62138c9f675d4fc4408305babbcd485cb32b73d3
2012-11-14 06:19:31 +01:00
Urvang Joshi
7caab1d8f6 Some cosmetic/comment fixes.
Change-Id: Id0613f84cc53fcbeceb913c835a262451687e27b
2012-11-09 10:46:38 -08:00
Urvang Joshi
11b2721258 Write a GIF to WebP converter based on libgif.
Change-Id: Ic64bf5307996a788ec61caf59a99ab37b4b1ae96
2012-11-08 11:21:25 -08:00
Urvang Joshi
e9a15a37cf ExUtilWriteFile() to write memory segment to file
Change-Id: I4a93358e55ba5527667e017e178009251f64560e
2012-11-08 11:20:01 -08:00
Urvang Joshi
fa30c86323 Update mux code to match the spec wrt animation
- Allow a duration of 0
- Rename LOOP chunk to ANIM and add the background color field to it.
- Add a disposal method field for each animation frame.
- Modify webpmux.c binary interface to allow the input of background color
  and disposal methods. Also make '-loop' and '-bgcolor' arguments optional
  with some default values.

Change-Id: I807372a61cdb8a0d3080ae3552caf2848070bf4d
2012-11-07 11:43:06 -08:00
Urvang Joshi
a00a3daf5b Use 'frgm' instead of 'tile' in webpmux parameters
- Also, use the term 'fragments' instead of 'tiling' in code
- This makes code consistent with the spec.

Change-Id: Ibeccffc35db23bbedb88cc5e18e29e51621931f8
2012-11-06 16:09:10 -08:00
Urvang Joshi
f903cbab9a Chunk fourCCs for XMP/EXIF
Use separate fourCCs "XMP " and "EXIF" instead of a common "META"
Also, some refactorization in webpmux.c

Change-Id: Iad3337e5c1b81e785c60670ce28b1f536dd7ee31
2012-11-06 14:53:21 -08:00
Urvang Joshi
a077072777 mux struct naming
members of public structs should not have a trailing underscore.

Change-Id: Ieef42e1da115bf42b0ea42159701e32bed7b9f60
2012-10-31 11:37:49 -07:00
Urvang Joshi
92f8059ce4 Rename some chunks:
TILE --> FRGM and FRM --> ANMF

Change-Id: I752f90b950413501aecb021a8f57882da0e01484
2012-10-30 15:02:15 -07:00
James Zern
3bb4bbeb60 Merge "Mux API change:" 2012-10-30 14:55:39 -07:00
Urvang Joshi
d0c79f0552 Mux API change:
Create common APIs for image, frame and tile.

Change-Id: I709ad752133094bd5bc89dd9c832ff79802aac68
2012-10-30 14:16:29 -07:00
pascal massimino
4828bb931d Merge "cwebp (windows): fix alpha image import on XP" 2012-10-23 00:57:21 -07:00
James Zern
eda8ee4b3b cwebp (windows): fix alpha image import on XP
Query the converter to ensure the format is supported; add BGR formats
as RGBA was failing for PNG on XP

Fixes issue 129

Change-Id: I02e0d74b3b21337bc5fffd6a5dc158b7809b9aa9
2012-10-19 18:48:47 -07:00
Pascal Massimino
f86e6abe1f add LSIM metric to WebPPictureDistortion()
LSIM stands for "local similarity": before matching
a compressed pixel to the source, we search around in the source
and minimise the squared error. So, this is close to PSNR calculation,
but mitigates some of its limitations (pure translation and noise for instance).

There's a new -print_lsim option to cwebp too.

Change-Id: Ia38561034c7a90e71d2ea0f55bb1de527eda245b
2012-10-19 06:48:11 -07:00
pascal massimino
cf1e90dec7 Merge "cwebp: fix jpg encodes on XP" 2012-10-09 00:04:19 -07:00
James Zern
f2b5d19b30 [cd]webp: always output windows errors
don't hide failures with -v.

Change-Id: I46485a66f266fd9e9e8c640d1051cd22cfa40658
2012-10-08 18:36:10 -07:00
James Zern
ecd66f774d cwebp: fix jpg encodes on XP
correct has_alpha check; previously it was controlled by keep_alpha,
which overrode the source format check.
fixes issue #127

Change-Id: I949be90419b03610c64900be0fd37f83b70cbe73
2012-10-08 18:26:21 -07:00
James Zern
d7a5ac86b9 vwebp: use demux interface
fixes broken build since:
 ab3234a Create WebPMuxFrameInfo struct for Mux APIs

Change-Id: I19d472f672b9234b15425a2e55ca89a3ea35bd64
2012-09-26 23:44:59 -07:00
Urvang Joshi
f6c096aad3 webpmux binary: Rename 'xmp' option to 'meta'
Change-Id: I00d7d2aa43ccb1e86b58e75e8677ea8ef7e1226e
2012-08-29 22:24:10 -07:00
Urvang Joshi
ddfe871a51 webpmux help correction
Clarify 'SET_OPTIONS'

Change-Id: I623ea955beb2a800709412b914a257abd95266cc
2012-08-29 22:23:12 -07:00
Urvang Joshi
1c04a0d438 Common APIs for chunks metadata and color profile.
Change-Id: Ie105ce913c0b56e34cc26fd7ec397103354f268a
2012-08-29 08:21:43 -07:00
Urvang Joshi
ab3234ae6b Create WebPMuxFrameInfo struct for Mux APIs
Change-Id: I1f3b15d679280b5347124e1d59865a3df089043b
2012-08-23 15:18:51 +05:30
Urvang Joshi
e3990fd8e4 Alignment fixes
Change-Id: I99b570a6621be271abd3df1c3316cdd7286cfe83
2012-08-23 13:22:59 +05:30
James Zern
292ec5cc7d quiet a few 'uninitialized' warnings
spurious in this case, but addresses e.g.,
... potentially uninitialized local variable 'weighted_average' used

Change-Id: Ib99998bf49e4af7a82ee66f13fb850ca5b17dc71
2012-08-02 14:03:30 -07:00
pascal massimino
5e7963000a Merge "WebPEncode: clear stats at the start of encode" into 0.2.0 2012-08-01 12:00:09 -07:00
Vikas Arora
dd1c3873fe Add image-hint for low-color images.
For low-color images, it may be better to not use color-palettes.
Users should treat this as one another hint (as with Photo &
Picture) and another parameter for tuning the compression density.
The optimum compression can still be obtained by running (outer loop)
compression with all possible tunable parameters.

Change-Id: Icb1a4face2a84774e16e801aee4a8ae97e232e8a
2012-07-31 23:11:19 -07:00
Pascal Massimino
4eb7aa64da Merge "WebPCheckMalloc() and WebPCheckCalloc():" into 0.2.0 2012-07-31 18:37:14 -07:00
James Zern
256afefa50 cwebp: exit immediately on version mismatch
{Picture,Config}Init don't do allocations and attempting to free any of
their contents on version mismatch will likely cause a crash

Change-Id: I2a5aece235f9680fb406aec4799adceea7f62cfc
2012-07-27 19:58:58 -07:00
James Zern
475d87d767 WebPEncode: clear stats at the start of encode
also relocate user_data from WebPAuxStats to the WebPPicture struct to
make clearing easier while placing it closer to the progress hook with
which it's used.
prior to this change some spurious lossless data could be reported in
the lossy (sans alpha) encoding case. additionally user_data could be
lost during lossless encoding.

Change-Id: I929fae3dfde4d445ff81bbaad51445ea586dd80b
2012-07-27 19:57:18 -07:00
Pascal Massimino
7d853d79dc add stats for lossless
* Extend AuxStats with new fields
  it's slightly ABI-incompatible, but i guess it's ok for 0.1.99+
  I expect to add more stats later, possibly (predictor stats, etc.)
* Have cwebp report the features used by lossless
  compression (either for alpha or full lossless coding)
* Print the PSNR for alpha (useful in case of -alpha_q)
* clean-up alpha.c signatures
+ misc cleanup (added const '* const ptr', etc.)

Change-Id: I157a21581f1793cb0c6cc0882e7b0a2dde68a970
2012-07-24 16:17:13 -07:00
James Zern
cbee59eba4 Merge commit 'v0.1.99'
* commit 'v0.1.99': (39 commits)
  Update ChangeLog
  add extra precision about default values and behaviour
  header/doc clean up
  Makefile.vc: fix webpmux.exe *-dynamic builds
  remove INAM, ICOP, ... chunks from the test webp file.
  harmonize authors as "Name (mail@address)"
  makefile.unix: provide examples/webpmux target
  update NEWS
  README: cosmetics
  man/cwebp.1: wording, change the date
  add a very crude progress report for lossless
  rename 'use_argb_input' to 'use_argb'
  add some padding bytes areas for later use
  fixing the findings by Frederic Kayser to the bitstream spec
  add missing ABI compatibility checks
  Doc: container spec text tweaks
  add ABI compatibility check
  mux.h: remove '* const' from function parameters
  encode.h: remove '* const' from function parameters
  decode.h: remove '* const' from function parameters
  ...

Conflicts:
	src/mux/muxinternal.c

Change-Id: I635d095c451742e878088464fe6232637a331511
2012-07-21 12:20:19 -07:00
James Zern
1889e9b6cc dwebp: report -alpha option
remove from WEBP_EXPERIMENTAL_FEATURES block; alpha is no longer
experimental.

Change-Id: I57df006ecac8122a987e52084813dc84ca7bcfd6
2012-07-20 19:42:56 -07:00
James Zern
d919ed06eb dwebp: add PAM output support
retains the alpha channel rather than stripping it as with PPM.

display from ImageMagick can render the files

Change-Id: I4f3a5d332937e0aeaf4e3fbd214fdae3b5382fb8
2012-07-20 19:06:01 -07:00
Pascal Massimino
8aacc7b056 remove INAM, ICOP, ... chunks from the test webp file.
Change-Id: Ia396d932b8b1af85717f693251c76985abc86395
2012-07-19 17:34:04 -07:00
James Zern
3e5bbe1c2e Merge "rename 'use_argb_input' to 'use_argb'" into 0.2.0 2012-07-18 23:26:42 -07:00
Pascal Massimino
0275159143 add a very crude progress report for lossless
better than nothing. Removed the warning in cwebp.c
(and silenced the warning in quiet mode too)

Change-Id: I85bbeaf77e0f60ead798886043dc053e6b44def5
2012-07-18 22:54:50 -07:00
Urvang Joshi
a4b9b1c604 Remove some unused enum values.
- WEBP_MUX_INVALID_PARAMETER: was used only at one place, and that too
should actually be an assert().
- WEBP_MUX_ERROR: was never used.

Change-Id: I8883cb4dfae7a7918507501f21fced0c04dda36a
2012-07-19 11:23:37 +05:30
Pascal Massimino
dd1081763c rename 'use_argb_input' to 'use_argb'
long name, and there's not really an 'output' equivalent

Change-Id: I9133ff734ae8d6572cb2f607211361f011fc0bc1
2012-07-18 22:47:16 -07:00
James Zern
12f9aede7e README: update cwebp help output
Change-Id: Ifc2fafca8131e53a894056e37bb22d25fedfa150
2012-07-13 14:55:39 -07:00
James Zern
8130c4cc64 Merge "build: remove libwebpmux from default targets/config" 2012-07-13 11:33:52 -07:00
James Zern
05108f6ea0 Merge "More spec/code matching in mux:" 2012-07-12 23:53:58 -07:00
Urvang Joshi
6808e69db8 More spec/code matching in mux:
- Match offsets, duration, width/height for frames/tiles and enforce
some constraints.
- Note that this also means using 'int's instead of 'uint32_t's for
16-bit and 24-bit fields.

Change-Id: If0b229ad9fce296372d961104aa36731a3b1304b
2012-07-13 11:47:24 +05:30
James Zern
e41a759615 build: remove libwebpmux from default targets/config
the extended file format is still under development and related
libs/binaries are not fit for release

configure:
--enable/disable-libwebpmux; default is disabled.

makefile.unix:
src/mux/libwebpmux.a and examples/webpmux must be explicitly specified

Makefile.vc:
$(DIRLIB)\libwebpmux.lib and $(DIRBIN)\webpmux.exe must be explicitly
specified

Change-Id: I8246746b256010dd2a2e4de58291222d7eaf0457
2012-07-11 14:25:41 -07:00
James Zern
a73b8978d1 vwebp: add checkboard background for alpha display
Change-Id: Iefb02f38c0479e61334844d9110cd1b735f0395d
2012-07-10 12:02:03 -07:00
James Zern
b35c07d9a7 vwebp: fix info display
change alpha intensity to 1 from 0; broken since alpha blending was enabled.

Change-Id: Ic8bb73b62e602ae56e08e9d5a77fdc6aa76b54c5
2012-07-09 22:47:10 -07:00
James Zern
16c46e83ac autoconf/make: cosmetics: break long lines
Change-Id: If08350a27cdfc4371dcb28ecb9d88d05eceaf977
2012-07-02 21:48:18 -07:00
James Zern
c17699b343 configure: add libtiff test
Change-Id: Ia5828797bae9c993a3d00ddd5e0089d3b828e975
2012-07-02 18:01:49 -07:00
pascal massimino
0e09732c5e Merge "cwebp: fix crash with yuv input + lossless" 2012-07-02 14:40:00 -07:00
James Zern
7bda392b50 cwebp: fix crash with yuv input + lossless
Change-Id: Ia27c925f532a4243369288e954abdc063b9f94f9
2012-07-02 14:33:25 -07:00
James Zern
d8921dd4e6 cwebp: name InputFileFormat members consistently
append an '_'. TIFF introduced TIFF_ to avoid a name clash.

Change-Id: Iebe484d43aeb8e1912cd5bd10d36e1c5e66a4b42
2012-07-02 11:24:23 -07:00
James Zern
6f76d246ba cwebp: add basic TIFF support
Change-Id: I29f354e1ef9cf8f23002cf2e15814a53a94b4ed5
2012-07-02 11:22:52 -07:00
Urvang Joshi
d11f6fcc82 webpmux returns error strings rather than numbers
Change-Id: Ifc8d8aaf0f6c03ecb1508ec7fbc34c918bf69c61
2012-06-27 16:55:57 +05:30
James Zern
b9ae4f0d88 cosmetics after mux changes b74ed6e, b494ad5
Change-Id: I8f693b1ba2537de89bda1dfbcf3b95abd17e420a
2012-06-22 14:30:01 -07:00
Urvang Joshi
b494ad5096 Mux: only allow adding frame/tiles at the end.
Change-Id: I5d685628da8c8ac85144cee2e5808b30ec79fef9
2012-06-22 11:18:18 -07:00
Vikas Arora
d373076a53 Added image characteristic hint for the codec.
This image type hint is used by codec to apply appropriate set of
transform filters to the image.

Change-Id: Ibb24e47ba14c40fa7f9f2c50ae86e03f2b29e9a6
2012-06-22 14:03:46 +05:30
Pascal Massimino
31b68fe639 cleanup WebPPicture struct and API
* add a real proper pointer for holding memory chunk pointer
  (instead of using y and argb fields)
* polish the doc with details
* add a WebPPictureView() that extract a view from a picture
  without any copy (kind of a fast-crop).
* properly snap the top-left corner for Crop/View. Previously,
  the luma position was not snapped, and was off compared to the chroma.

Change-Id: I8a3620c7f5fc6f7d1f8dd89d9da167c91e237439
2012-06-21 00:30:43 -07:00
Urvang Joshi
08220102d1 Enable alpha in vvwebp
Change-Id: I9499b6d4ea64b7eab18cb377f0bb09b6b494c534
2012-06-20 11:20:48 -07:00
Urvang Joshi
b74ed6e766 Mux API change:
'Set' and 'Get' methods for images take/return a bitstream as input,
instead of separate 'image' and 'alpha' arguments.

Also,
- Make WebPDataCopy() a public API
- Use WebPData for storing data in WebPChunk.
- Fix a potential memleak.

Change-Id: I4bf5ee6b39971384cb124b5b43921c27e9aabf3e
2012-06-20 11:00:42 -07:00
Vikas Arora
b7fb0ed567 Log warning for unsupported options for lossless.
Change-Id: I30d4e775959c7a4a8f5b649c8c90a4edb8cced47
2012-06-20 10:51:50 +05:30
Pascal Massimino
78f3e34504 Enable lossless encoder code
Remove USE_LOSSLESS_ENCODER compile flag
Update Makefile.am and makefile.unix

Change-Id: If7080c4d8f37994c7c784730c5e547bb0a851455
2012-06-13 00:26:58 -07:00
Urvang Joshi
fbdcb7ea38 NumNamedElements() should take an enum param.
- Move TAG_ID to webp/mux.h
- Rename it to WebPChunkId
- Rename IDs to WEBP_CHUNK_<tag>
- Remove "name" param from ChunkInfo struct and related changes.
- Rename WebPMuxNumNamedElements to WebPMuxNumChunks().
- WebPMuxNumChunks() takes WebPChunkId as param.

Change-Id: Ic6546e4a9ab823b556cdbc600faa137076546a2b
2012-06-11 12:26:13 +05:30
James Zern
c71ff9e359 cwebp: fix alpha reporting in stats output
Since
 437999f introduce a generic WebPPictureHasTransparency() function
lossy encodes will not encode alpha if the alpha channel is completely
opaque.

Change-Id: I1826669c3932483650d7f8ce806cfebd4e5225fc
2012-06-07 17:32:29 -07:00
Urvang Joshi
f3bab8eb27 Update vwebp
... with updated mux API calls.

Change-Id: I0f8a36eeffaeb041964ec4f582e369d48bba4978
2012-06-07 17:20:26 +05:30
Urvang Joshi
6d5c797cee Remove support for partial files in Mux.
Change-Id: Ie084f308c79a3cfaf2ea13e800397debc2643470
2012-06-07 13:46:42 +05:30
Urvang Joshi
f1df5587d9 WebPMuxAssemble() returns WebPData*.
Also add an API 'WebPDataFree()'

Change-Id: I00dc4c67fd78a541a18aaf0e65b8ef62d9769803
2012-06-07 11:05:57 +05:30
Urvang Joshi
814a063925 Rename 'Add' APIs to 'Set'.
Change-Id: I10a836a5bc3c9207b6f7fa423bb64bc9bcac055b
2012-06-05 20:37:51 +05:30
Urvang Joshi
4fc4a47f6e Use WebPData in MUX set APIs
Change-Id: Ibdede3c1cd02c6aeef333718592da313f10f6408
2012-06-05 14:21:46 +05:30
Pascal Massimino
437999fb77 introduce a generic WebPPictureHasTransparency() function
VP8-lossy will now avoid writing an ALPH chunk if the
alpha values are trivial.

+ changed DumpPicture() accordingly in cwebp
+ prevented the -d option to be active with lossless
 (DumpPicture wouldn't work).

Change-Id: I34fdb108a2b6207e93fa6cd00b1d2509a8e1dc4b
2012-06-04 16:17:55 -07:00
James Zern
880fd98ca1 vwebp: fix exit w/freeglut
GLUT_ACTION_CONTINUE_EXECUTION is required to allow glutMainLoop to
return.

Change-Id: I8eb7e657a52d6923858959b7b03447a7ddb53ca0
2012-05-25 15:06:21 -07:00
James Zern
00b29e282f normalize example header includes
headers from examples/ aren't installed so prefix with './' to be
explicit.

Change-Id: Ie6c1544a026a9859b7fc0cf238b21e031ef0013f
2012-05-15 13:48:11 -07:00
James Zern
061263a787 add example_util.[hc]
moves ReadFile to a common location

Change-Id: Ia81230671f16d7d4d218b9954a5be55577a85413
2012-05-15 13:42:57 -07:00
James Zern
1d38b258b8 cwebp/windows: use MAKE_REFGUID where appropriate
Change-Id: If595c75a833d37df86c16bf926da5f032015c68e
2012-05-09 11:52:01 -07:00
James Zern
817ef6e9af Merge "cwebp: fix WIC/Microsoft SDK compatibility issue" 2012-05-09 11:50:05 -07:00
James Zern
902d3e3b5f cwebp: fix WIC/Microsoft SDK compatibility issue
Fixes issue #115.
Define local copies of GUID_WICPixelFormat24bppRGB &
GUID_WICPixelFormat32bppRGBA (and GUID_WICPixelFormat32bppBGRA for
symmetry) to avoid link issues when building against older versions of
the SDK.

Change-Id: I2a26be1b7fe6d970feb3211cf0059e5898e3028d
2012-05-09 11:47:15 -07:00
Pascal Massimino
3927ff3abc remove unneeded error condition for WebPMuxNumNamedElements()
+ fix error message

Change-Id: If283ff6609ee0c5dff81a9c1c3f194faa729161c
2012-05-09 01:57:15 -07:00
Pascal Massimino
861a5b7bc9 add support for animation
it's using glutTimerFunc() for trigger next frame's decoding

Reminder: how to build and use manually (integration in makefile.unix coming soon)

Unix:
cd libwebp
make -f makefile.unix
cd examples
cc -o vwebp vwebp.c -framework GLUT -framework OpenGL -I../src/ ../src/libwebp.a ../src/mux/libwebpmux.a

Mac + xcode:
cd libwebp
make -f makefile.unix
cd examples
cc -o vwebp vwebp.c -lglut -lGL -lpthread -lm -I../src/ ../src/libwebp.a ../src/mux/libwebpmux.a

Change-Id: Id49e87c26628c2b58ec221f6030cbd2e46a807b4
2012-05-09 01:23:39 -07:00
Pascal Massimino
4abe04a204 fix the return value and handle missing input file case.
Change-Id: I42a64fcf7587ff3a487115808e2cfa51cec0031d
2012-05-09 00:34:30 -07:00
Vikas Arora
c4ccab6463 Print relevant lossless encoding stats in cwebp.
Change-Id: Ib8dfab498b1a05e49734bba2d3e72810343e8b0a
2012-05-09 11:31:41 +05:30
Pascal Massimino
72920caa61 introduce -lossless option, protected by USE_LOSSLESS_ENCODER
Change-Id: Ic5707082fefd964b9bcab0c9f9aa276992c22b06
2012-05-07 14:25:02 -07:00
James Zern
95667b8d86 mux: use size_t consistently
remove mixed use of uint32_t

Change-Id: I57f701a0d9fce255c4dd83c01e523079976ef5b5
2012-04-23 11:00:20 -07:00
James Zern
a0b2736d79 cosmetics & warnings
- remove some unused functions
- move global arrays from data to read only section
- explicitly cast malloc returns; not specifically necessary, but helps
  show intent
- miscellaneous formatting

Change-Id: Ib15fe5b37fe6c29c369ad928bdc3a7290cd13c84
2012-01-30 17:19:53 -08:00
James Zern
0f7820e65c webpmux: make more use of WebPData
Add WebPDataCopy and use it in ReadImage which now returns WebPData*s.
Update ReadData prototype variables used with it to avoid unnecessary
const casting back and forth from void*.

Change-Id: I3f83db6729306eab0db9027b68706c8a7005ec10
2012-01-24 17:18:45 -08:00
James Zern
974aaff360 examples: logging updates
- send errors to stderr
- send help to stdout
- add image size to webpmux -info output and send to stdout
- correct webpmux exit values

Change-Id: Ifd8e8493aab33a82765f7b7903cef345d96da9ae
2012-01-24 16:55:38 -08:00
James Zern
eec4b87718 mux: add WebPData type
slightly simplifies Get process

Change-Id: I9db365da29038e02a032494e0ef3d8a0d7515210
2012-01-23 17:51:01 -08:00
Pascal Massimino
d61479f95b add -print_psnr and -print_ssim options to cwebp.
These will report the 7x7-averaged PSNR or SSIM, using the
new internal function WebPPictureDistortion().
This is for information only. These flags have no encoding impact.

+misc opportunistic cosmetics

Change-Id: I64c0a7eca679134d39062e438886274b22bb643f
2012-01-20 07:37:29 -08:00
Pascal Massimino
2e3e8b2ef5 add a WebPCleanupTransparentArea() method
to 'clean up' the fully-transparent area and make it more compressible
new cwebp flags: -alpha_cleanup (off by default, since gain is not 100% guaranteed)

Change-Id: I74d77e1915eee146584cd61c9c1132a41db922eb
2012-01-18 14:01:24 -08:00