Commit Graph

67 Commits

Author SHA1 Message Date
James Zern
fe051da772 Merge "README: add a section on gif2webp" 2013-12-18 11:02:55 -08:00
James Zern
4af19007a4 README: add a section on gif2webp
Change-Id: Ie701da16223df7482f7b017150242ba2d381d0b5
2013-12-18 10:49:49 -08:00
James Zern
f9016cb964 README: update dwebp options
Change-Id: I25300e374215578d091557380ce3dc599d58bd49
2013-12-17 21:51:41 -08:00
James Zern
1939607e7f rename libwebp.i -> libwebp.swig
.swig provides better tool compatibility

Change-Id: I35587b84dd32e12e8cedad14b36ac518b63896bc
2013-10-29 19:51:04 +01:00
James Zern
30e77d0f66 Merge branch '0.3.0'
* 0.3.0: (57 commits)
  update ChangeLog
  Regression fix for alpha channels using color cache:
  wicdec: silence a format warning
  muxedit: silence some uninitialized warnings
  update ChangeLog
  update NEWS
  bump version to 0.3.1
  Revert "add WebPBlendAlpha() function to blend colors against background"
  Simplify forward-WHT + SSE2 version
  probe input file and quick-check for WebP format.
  configure: improve gl/glut library test
  update copyright text
  configure: remove use of AS_VAR_APPEND
  fix EXIF parsing in PNG
  add doc precision for WebPPictureCopy() and WebPPictureView()
  remove datatype qualifier for vmnv
  fix a memory leak in gif2webp
  fix two minor memory leaks in webpmux
  remove some cruft from swig/libwebp.jar
  README: update swig notes
  ...

Conflicts:
	NEWS
	examples/gif2webp.c
	src/dec/alpha.c
	src/dec/idec.c
	src/dec/vp8l.c
	src/enc/alpha.c
	src/enc/vp8l.c

Change-Id: Ib202fad7825a090c3b3a5169acd171369cface47
2013-06-20 14:47:48 -07:00
James Zern
5a92c1a5e9 bump version to 0.3.1
libwebp{,decoder} - 0.3.1
libwebp libtool - 4.3.0 (compatible release)
libwebpdecoder libtool - 0.1.0 (compatible release)

mux/demux - 0.1.1
libtool - 0.1.0 (compatible release)

Change-Id: Icc8329a6bcd9eea5a715ea83f1535a66d6ba4b58
2013-06-12 23:19:13 -07:00
James Zern
67bc353e6d Revert "add WebPBlendAlpha() function to blend colors against background"
This reverts commit dcbb1ca54a.

Dropping this for now to maintain compatibility for 0.3.1.

Change-Id: I44e032a072d317bb67e1439c42cff923e603038f
2013-06-12 15:02:09 -07:00
James Zern
850e956f9b README: update swig notes
add python, required version notes

Change-Id: Iec2e94075f6cf54455ce5a658f9b7258109f4d01
(cherry picked from commit 4a7627c215)
2013-06-11 15:03:21 -07:00
Pascal Massimino
dcbb1ca54a 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
(cherry picked from commit e7d9548c9b)
2013-06-11 15:00:41 -07:00
James Zern
4a7627c215 README: update swig notes
add python, required version notes

Change-Id: Iec2e94075f6cf54455ce5a658f9b7258109f4d01
2013-05-21 14:58:32 -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
Pascal Massimino
b66caee410 dwebp: add support for BMP output
Supports alpha output too.

Change-Id: I42ea0bf7b6bbb420f0e537d372a3b13fe00528a9
2013-04-09 18:52:34 -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
pascal massimino
7d9fdc2389 Merge "README updates" into 0.3.0 2013-03-17 02:40:44 -07:00
James Zern
cef9388283 bump version to 0.3.0
libwebp{,decoder} - 0.3.0
libwebp libtool - 4.2.0 (compatible release)
libwebpdecoder libtool - 0.0.0 (new release)

mux/demux - 0.1.0
libtool - 0.0.0 (new release)

Change-Id: Ied6efa390b2f97f1f41fc8349a365613c639d6cc
2013-03-16 14:08:14 -07:00
James Zern
1e67e8ef9e README updates
* build related notes
  * merge vwebp descriptions
  * miscellaneous cosmetics

Change-Id: Ic4e580127bd2c4dff8e5a81ccb10b15a3568f8b1
2013-03-16 12:35:49 -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
d8dc72a039 examples: normalize icc related program arguments
use 'icc' rather than 'iccp'.

Change-Id: I9667f286bfa1cfeb0ac49148ba341d268b051b98
2013-03-14 19:05:22 -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
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
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
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
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
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
1c4609b1f8 Merge commit 'v0.2.1'
* commit 'v0.2.1':
  Update ChangeLog
  update NEWS
  bump version to 0.2.1
  libwebp: validate chunk size in ParseOptionalChunks
  cwebp (windows): fix alpha image import on XP
  autoconf/libwebp: enable dll builds for mingw
  [cd]webp: always output windows errors
  fix double to float conversion warning
  cwebp: fix jpg encodes on XP
  VP8LAllocateHistogramSet: fix overflow in size calculation
  GetHistoBits: fix integer overflow
  EncodeImageInternal: fix uninitialized free
  fix the -g/O3 discrepancy for 32bit compile
  fix the BITS=8 case
  Make *InitSSE2() functions be empty on non-SSE2 platform
  make *InitSSE2() functions be empty on non-SSE2 platform
  make VP8DspInitNEON() public

Conflicts:
	src/Makefile.am
	src/dsp/dec_neon.c

Change-Id: Iddc5152e4a6892db96c12d7c3f74adbc85fe6178
2012-11-02 12:20:19 -07:00
James Zern
25f585c4f2 bump version to 0.2.1
lib - 0.2.1
libtool - 4.1.0 (compatible release)

Change-Id: Ib6ca47f2008d5c97d818422816ac60d0d0d8cffa
2012-10-29 19:17:17 -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
43b0d6107a add support for ARGB -> YUVA conversion for lossless decoder
This was returning an (hard-to-explain) error before.
(through WebPDecodeYUV() for instance).

+ rationalize the incremental API:
-> add WebPINewYUVA
-> deprecated WebPINewYUV
-> add WebPIDecGetYUVA
-> deprecated WebPIDecGetYUV

+ some NULL cosmetics

Change-Id: I39a6bd6018a34294d898b29f6c40e2cf76f1037e
2012-08-03 15:41:01 -07:00
Pascal Massimino
33705ca093 bump version to 0.2.0
Change-Id: I01cb50b9c4c8e9245aede3947481cbbd27d6a19d
2012-08-03 15:41:01 -07:00
James Zern
4b71ba035a README: sync [cd]webp help output
Change-Id: Ic54e0f3e5e2e667adb369321e5849890d3b96e42
dwebp: -pam, -alpha
2012-08-02 16:11:02 -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
James Zern
85e215d36f README/manpages/configure: update website link
code.google was moved to developers.google

Change-Id: I072cab38ccb6f45c3d1d6e533d1626420cdbba56
2012-07-20 16:25:04 -07:00
James Zern
c37c23e594 README: cosmetics
- update swig function references
- remove references to decode_vp8.h (no longer installed)
- add lossless references
- some grammar/spelling changes

Change-Id: Icebfbcf6f638762f42d844b6bd3c0129c64d9340
2012-07-19 12:38:46 -07:00
Pascal Massimino
c2416c9b61 add lossless quick encoding functions to the public API
New functions:
   WebPEncodeLosslessRGB()
   WebPEncodeLosslessBGR()
   WebPEncodeLosslessRGBA()
   WebPEncodeLosslessBGRA()

Change-Id: Id56da7569eee80c57de8f1f053fb87b217d33a4b
2012-07-17 12:02:53 -07:00
pascal massimino
1efaa5a369 Merge "bump versions" into 0.2.0 2012-07-14 10:57:58 -07:00
James Zern
12f9aede7e README: update cwebp help output
Change-Id: Ifc2fafca8131e53a894056e37bb22d25fedfa150
2012-07-13 14:55:39 -07:00
James Zern
f0b5defb0a bump versions
lib - 0.1.99
libtool - 3.0.0 (interface changes)

Change-Id: Id52f8b8df5b941b15af6cb54b1cc05daf322179f
2012-07-13 14:07:51 -07:00
James Zern
02f27fbd3b dec: remove deprecated WebPINew()
Change-Id: I22ad1d297333f5ebc84456d142426a4e0e9a044b
2012-04-27 19:47:35 -07:00
James Zern
9b3d1f3a1b decode.h: use size_t consistently
replaces mixed use of int/uint32_t for buffer sizes
further changes the API/ABI.

Change-Id: I91d70fd82ee3e1ac34b884b8ead9a114a9b1015a
2012-04-19 14:31:31 -07:00
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
Pascal Massimino
8ca2076de1 Introduce a 'fast' alpha mode
.. where only 2 filtering modes are potentially
tried, instead of all of them. This is fast than the exhaustive 'best'
mode, and not much worse.

Options for cwebp are:
 -alpha_filter none
 -alpha_filter fast      (<- default)
 -alpha_filter best      (<- slow)

Change-Id: I8cb90ee11b8f981811e013ea4ad5bf72ba3ea7d4
2012-01-09 02:37:44 -08:00
Pascal Massimino
7937b409e7 simple WebP viewer, based on OpenGL
Quite handy and simple (for now).
It's not yet incorporated within the build system (autotools or
makefile.unix), because it gets complicated with OpenGL. TODO(later).

For now, there's some ready-to-use command line for compiling on Linux
or Mac in the header of vwebp.c

Later, this tool will be supplemented with support for animation,
tiling, zooming, etc.

Change-Id: I292972cea4862536afbe8c9ec444c590d152f086
2011-12-13 14:02:04 -08:00
Pascal Massimino
30971c9e95 Implement progress report (and user abort)
New cwebp flag is -progress

Change-Id: Ied872cca13f512036860783bbee1bdbccad72768
2011-12-01 14:19:40 -08:00
James Zern
206b686b39 README: correct advanced decode api pseudo-code
Change-Id: I09e5365cc15cb9b6c53a1d5d4e16a51bfc353b10
2011-09-13 15:47:53 -07:00
James Zern
227a91e522 README: minor wording update
Change-Id: I2683f9d8a00a476ccb90bef911804378ec6a5558
2011-08-30 17:27:46 -07:00
Pascal Massimino
4cbbb2901b Merge "bump up version for next freeze" 2011-08-26 16:24:23 -07:00
Pascal Massimino
a329167426 bump up version for next freeze 2011-08-26 16:23:14 -07:00
Vikas Arora
fac15ec78e Update NEWS & README for next release V0.1.3
Update ChangeLog, NEWS & README file for next release V0.1.3
2011-08-25 09:11:08 +05:30
Pascal Massimino
900286e091 add a -partition_limit option to limit the number of bits used by intra4x4
Although it degrades quality, this option is useful to avoid the 512k
limit for partition .
If not enough to reach the lower bound of 4bits per macroblock header,
one should also limit the number of segments used (down to -segments 1)

See the man file for extra details.

Change-Id: Ia59ffac13176c85b809ddd6340d37b54ee9487ea
2011-08-23 15:58:22 -07:00