Commit Graph

1563 Commits

Author SHA1 Message Date
Urvang Joshi
cc128e0bfc Further reduce memory to decode lossy+alpha images
Earlier such images were using roughly 9 * width * height bytes for
decoding. Now, they take 6 * width * height memory.

Change-Id: Ie4a681ca5074d96d64f30b2597fafdca648dd8f7
(cherry picked from commit 64c844863a)
2013-06-11 15:00:46 -07:00
Pascal Massimino
07db70d20f fix for big-endian
(Issue #150: https://code.google.com/p/webp/issues/detail?id=150)

Change-Id: Iad46d375a8c5eabae37cde8f55b3e7448601f264
(cherry picked from commit 4437061735)
2013-06-11 15:00:46 -07:00
Urvang Joshi
eda8a7dec5 gif2webp: Fix signed/unsigned comparison mismatch
Change-Id: I355f0614424276550db71b24e5bb1948e5c6894c
(cherry picked from commit 043e1ae4bd)
2013-06-11 15:00:46 -07:00
James Zern
31f346fe0c Makefile.vc: fix libwebpdemux dll variable typo
Fixes issue #149

Patch by: Jason Stevens  (cypher497 at gmail dot com)

Change-Id: I65cceaad37d22b96e5e92cb78f859fc0b7c38b67
(cherry picked from commit 3eeedae1bc)
2013-06-11 15:00:45 -07:00
James Zern
6c76d28e4b swig: add python (decode) support
similar to Java, simple interface only

Change-Id: I8a3d344e5d89f73627e4e0cb2067512260d46fdd
(cherry picked from commit f980faf417)
2013-06-11 15:00:45 -07:00
James Zern
b4f5bb6ca3 swig: cosmetics
normalize formatting
- update decode prototypes
- match project function name style

Change-Id: Ib481b5602171b72dbb1a5d462e6d5166e9b8566e
(cherry picked from commit 7f5f42bb36)
2013-06-11 15:00:45 -07:00
Vikas Arora
498d4dd634 WebP-Lossless encoding improvements.
Lossy (with Alpha) image compression gets 2.3X speedup.
Compressing lossless images is 20%-40% faster now.

Change-Id: I41f0225838b48ae5c60b1effd1b0de72fecb3ae6
(cherry picked from commit 8eae188a62)
2013-06-11 15:00:45 -07:00
James Zern
26e7244221 swig: ifdef some Java specific code
no implementation change

Change-Id: I077c707e1f6293188e6fa11ba24757009a709f77
(cherry picked from commit c7247c4c68)
2013-06-11 15:00:45 -07:00
James Zern
8ecec68652 configure: add warning related flags
adds TEST_AND_ADD_CFLAGS function
uses AM_CFLAGS to allow CFLAGS override

Change-Id: I9352aec6e5d905a41d832bf5ad0c8dcd154f7e97
(cherry picked from commit bba4c2b2a6)
2013-06-11 15:00:44 -07:00
James Zern
e676b04309 configure: add GLUT detection; build vwebp
Change-Id: I7f0964db2d04c22ff9ec274e8cd1cbed7379a165
(cherry picked from commit 0e513f7ae3)
2013-06-11 15:00:44 -07:00
Urvang Joshi
b0ffc43700 Alpha decoding: significantly reduce memory usage
Simply get rid of an intermediate buffer of size width x height, by
using the fact that stride == width in this case.

Change-Id: I92376a2561a3beb6e723e8bcf7340c7f348e02c2
(cherry picked from commit edccd19436)
2013-06-11 15:00:44 -07:00
James Zern
20aa7a8dd5 configure: add --enable-everything
Change-Id: Ie1b3abd42459de7f789fe985759c465c2a196727
(cherry picked from commit 3cafcc9a8d)
2013-06-11 15:00:44 -07:00
James Zern
b8307cc08b configure.ac: add some helper macros
library check related variable maintenance -> *_INCLUDES / *_LIBS

CLEAR_LIBVARS / LIBCHECK_PROLOGUE / LIBCHECK_EPILOGUE

Change-Id: I72e292dc1f69b02f69a26639308f247db0471e2b
(cherry picked from commit 4ef1447792)
2013-06-11 15:00:44 -07:00
Pascal Massimino
980e7ae951 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
(cherry picked from commit a4e1cdbbe8)
2013-06-11 15:00:44 -07:00
Urvang Joshi
7f25ff99fd gif2webp: Fix ICC and XMP support
Change-Id: Ib5aafef388bd191610e4cc2f8180f35cd454f1d3
(cherry picked from commit b26e5ad540)
2013-06-11 15:00:43 -07:00
Christian Duvivier
d8e5321144 Add missing name to AUTHORS
Change-Id: I00092e5bb676b48abc05b94080b589b48c911c82
(cherry picked from commit 46089b207d)
2013-06-11 15:00:43 -07:00
Urvang Joshi
11edf5e24b Demux: Fix a potential memleak
Change-Id: Ic0dcac010da088b791c130be4abacdd8c31e92cf
(cherry picked from commit 94328d6457)
2013-06-11 15:00:43 -07:00
James Zern
c7b92184df don't forward declare enums
doing so is not part of ISO C; removes some pedantic warnings

Change-Id: I739ad8c5cacc133e2546e9f45c0db9d92fb93d7e
(cherry picked from commit 96e948d7b0)
2013-06-11 15:00:43 -07:00
James Zern
7a650c6ad6 prevent signed int overflow in left shift ops
force unsigned when shifting by 24.

Change-Id: Ie229d252e2e4078107cd705b09397e686a321ffd
(cherry picked from commit f4f90880a8)
2013-06-11 15:00:43 -07:00
Pascal Massimino
31bea32408 add precision about dynamic output reallocation with IDecoder
The output surface CAN be changed inbetween calls to
WebPIUpdate() or WebPIAppend(), but with precautions.

Change-Id: I899afbd95738a6a8e0e7000f8daef3e74c99ddd8
(cherry picked from commit ff885bfe1f)
2013-06-11 15:00:43 -07:00
Urvang Joshi
c22877f70f Add incremental support for extended format files
This applies to images with optional chunks (e.g. images with ALPH
chunk,
ICCP chunk etc). Before this, the incremental decoding used to work like
non-incremental decoding for such files, that is, no rows were decoded
until
all data was available.

The change is in 2 parts:
- During optional chunk parsing, don't wait for the full VP8/VP8L chunk.
- Remap 'alpha_data' pointer whenever a new buffer is allocated/used in
WebPIAppend() and WebPIUpdate().

Change-Id: I6cfd6ca1f334b9c6610fcbf662cd85fa494f2a91
(cherry picked from commit ead4d47859)
2013-06-11 15:00:42 -07:00
James Zern
5051245f3a Makefile.vc: have 'all' target build everything
default is still the core examples as makefile.unix

Change-Id: Ica3fe6123f4359aefa130b39d2b0739b65e34c0b
(cherry picked from commit 69d0f92658)
2013-06-11 15:00:42 -07:00
James Zern
8191decae9 Makefile.vc: flags cleanup
- drop some unnecessary link flags
- use lib.exe directly for creating libraries
- factorize /nologo and use it consistently

Change-Id: Ie76119bc051e9bc53e4d6bba1a0a3f124f9062fc
(cherry picked from commit 52967498b3)
2013-06-11 15:00:42 -07:00
James Zern
b9d747351a Makefile.vc: drop /FD flag
breaks under wine; from MSDN:
/FD is only used by the development environment, and it should not be
used from the command line or a build script.

Change-Id: I180c9813e721b163cc645b9b7f14fe36556019d3
(cherry picked from commit c61baf0c10)
2013-06-11 15:00:42 -07:00
James Zern
5568dbcfe6 update gitignore
*.a, new examples and new automake-1.12 file (ar-lib)

Change-Id: I28d7bc59a2977a7c5959940936e3d13a71dd149c
(cherry picked from commit 3a15125d2f)
2013-06-11 15:00:42 -07:00
Urvang Joshi
f4c7b6547b WebPEncode: An additional check.
Start VP8EncLoop/VP8EncTokenLoop only if VP8EncStartAlpha succeeded.

Change-Id: Id1faca3e6def88102329ae2b4974bd4d6d4c4a7a
(cherry picked from commit 67708d6701)
2013-06-11 15:00:42 -07:00
Urvang Joshi
1fb04bec99 pngdec: Avoid a double-free.
Earlier, at line#275, if ok == 0, it would have triggered a double free
of 'rgb'.

Change-Id: Iaee1f35824a66f6e4b488e523416f73b87c5ec30
(cherry picked from commit b68912af2c)
2013-06-11 15:00:42 -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
bc9f5fbe0f configure.ac: add AM_PROG_AR for automake >= 1.12
fixes:
automake-1.12/am/ltlibrary.am: warning: 'libwebp.la': linking libtool libraries using a non-POSIX
automake-1.12/am/ltlibrary.am: archiver requires 'AM_PROG_AR' in 'configure.ac'

Change-Id: I223f93e5f075aaf23cfefceef55e2ab8eeb34ccd
(cherry picked from commit ed4dc71769)
2013-06-11 15:00:41 -07:00
Vikas Arora
bf867bf296 Tuned cross_color parameter (step) for lower qual
Tuned the cross_color transform parameter (step) for lower quality
levels. This change gives speedup of 20% at lower qualities (25) and 10% at
moderate quality level (50) with a loss of 0.25% in compression density.
Also removed TODO for cross_color transform. Observed good correlation of
this with the predict transform.

Change-Id: I8a1044e9f24e6a5f84295c030fd444d0eec7d154
2013-06-11 12:15:07 -07:00
James Zern
90e2ec5a1b Merge "probe input file and quick-check for WebP format." 2013-06-10 12:29:58 -07:00
James Zern
7180d7ffbd Merge "update copyright text" 2013-06-10 12:23:44 -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
2ccf58d648 configure: improve gl/glut library test
add a check for a libGL function (glOrtho) in addition to glutMainLoop
when establishing the need for libGL at link time.

fixes vwebp link failure on ubuntu 13.04+

Change-Id: I537e9a5cab5cf4cd8875e06268d2107f377e625e
2013-06-07 20:15:53 -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
pascal massimino
c2113ad4f9 Merge "configure: remove use of AS_VAR_APPEND" 2013-06-06 00:23:29 -07:00
James Zern
9326a56f8d configure: remove use of AS_VAR_APPEND
This wasn't used often and benefits were likely minimal. Dropping it
outright is a bit simpler than adding a compatibility ifdef.

provides some compatibility with older versions of autoconf.
tested with autoconf 2.59/automake 1.7/aclocal 1.7

Change-Id: Ifed892346cf2329597985704830a96fc58d65607
2013-06-06 00:14:02 -07:00
skal
ea63d61937 fix a type warning on VS9 x86
"warning C4244: 'function' : conversion from 'uint64_t' to 'size_t', possible loss of data"

Change-Id: Ibd9f6a24993518d658d08127d616a17d7b99e0e4
2013-06-05 10:14:04 +02:00
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
skal
f4710e3b89 collect macroblock reconstruction data in VP8MBData struct
This is to better separate bitstream parsing from reconstruction.

Change-Id: I872b58e9940c4b14f72ebee50fba545468ff754c
2013-05-31 22:38:12 +02:00
skal
23d28e216d add doc precision for WebPPictureCopy() and WebPPictureView()
output picture object is overwritten, not free'd or destroyed.

Change-Id: Ibb47ab444063e7ad90ff3d296260807ffe7ddbf9
2013-05-31 10:41:19 +02:00
James Zern
518f2cd738 cosmetics: gif2webp: fix indent
Change-Id: I9b7aaefb33b4101bcb572577ce17fb3953599c2b
2013-05-29 16:00:05 -07:00
skal
af358e68ed Merge "remove datatype qualifier for vmnv" 2013-05-23 06:12:06 -07:00
skal
3fe91635df remove datatype qualifier for vmnv
this fix is for clang (LLVM v4.2). gcc was fine.

Change-Id: Id4076cda84813f6f9548a01775b094cff22b4be9
2013-05-23 13:52:24 +02:00
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
James Zern
47b9862f30 Merge "README: update swig notes" 2013-05-21 15:09:30 -07:00
James Zern
325d15ff30 remove some cruft from swig/libwebp.jar
picked up a few unnecessary classes from a dirty tree in the last commit

Change-Id: I98be16a0bc8716476ce440da542d113f254aee78
2013-05-21 15:01:15 -07:00