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Author SHA1 Message Date
Urvang Joshi
3fa595a571 Support decoding upto given row in DECODE_DATA_FUNC 
This is in preparation for supporting Intertwined decoding of RGB and
alpha.

Change-Id: Ie1905d1212f4a00718a64dca020be3f4b1b870ec
 2013-06-11 16:00:58 -07:00
Urvang Joshi
520f005f85 DequantizeLevels(): Add 'row' and 'num_rows' args 
Change-Id: I0032e25c30f34362105d942f2dbb9ac75200f911
 2013-06-11 15:59:21 -07:00
Urvang Joshi
47374b8273 Alpha unfilter for given set of rows 
Support reconstruction of small number of rows at a time.

Change-Id: Ief1bc78c7ad011ec6df856551f3beb5f907fd8e0
 2013-06-11 15:57:42 -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
James Zern
4a7627c215 README: update swig notes 
add python, required version notes

Change-Id: Iec2e94075f6cf54455ce5a658f9b7258109f4d01
 2013-05-21 14:58:32 -07:00
James Zern
5da81e3383 Merge "swig/python: add minimal documentation" 2013-05-21 14:49:46 -07:00
James Zern
f39e08f2e3 Merge "swig: add python encode support" 2013-05-21 14:48:36 -07:00
James Zern
6ca4a3e385 Merge "swig/java: reduce wrapper function code duplication" 2013-05-21 14:44:16 -07:00
James Zern
8f8702b034 Merge "swig/java: rework uint8_t typemap" 2013-05-21 14:42:58 -07:00
skal
91413be2f9 reduce memory for VP8MB and remove bitfields use 
~1% faster on ARMv7

Change-Id: I3e3524e0c25ebd31a04269aae0d304932f1a781a
 2013-05-21 23:20:04 +02:00
Vikas Arora
7413394e7f Fix the memory leak in ApplyFilters. 
Change-Id: Iba1b1adf3088ea9c43e4f602a93e77450f6c6170
 2013-05-21 14:00:26 -07:00
skal
2053c2cff2 simplify the alpha-filter testing loop 
Change-Id: Iacebae749c37edc87a3c94c76cd589a2565ee642
 2013-05-21 10:29:27 +02:00
James Zern
825b64db53 swig/python: add minimal documentation 
uses autodoc to display the function arguments rather than the
inscrutable va_args (*args).

Change-Id: Iec2ff8276c1533b14c3032836d822fbdae632521
 2013-05-20 17:14:51 -07:00
James Zern
14677e11d4 swig: add python encode support 
wraps the simple interface similar to java.

Change-Id: Ib922bbcae322b2345b6dce5dee08faad705a77fd
 2013-05-20 17:14:50 -07:00
James Zern
a5c297c842 swig/java: reduce wrapper function code duplication 
define a macro to emit the wrapper code

Change-Id: I672416016162d6d9ce6f455d224044e0837e3ace
 2013-05-20 17:13:27 -07:00
James Zern
ad4a367dba swig/java: rework uint8_t typemap 
reuse the declarations from arrays_java.i for signed char to make an
explicit uint8_t mapping. this avoids sign conversion build warnings.

Change-Id: Icfb5b865cf1fd404e89f2cd889111f0a94e3c604
 2013-05-20 13:16:14 -07:00
skal
0d25876bad use uint8_t for inv_palette[] 
Change-Id: I5005ce68d89bfb657d46ad8acc4368c29fa0c4fd
 2013-05-18 17:13:58 +02:00
skal
afa3450c11 Fix the bug in ApplyPalette. 
The auto-infer logic of detecting the 'Alpha' use case
(via check '(palette[i] & 0x00ff00ffu) != 0' is failing
for this corner case image with all black pixels (rgb = 0)
and different Alpha values.

-> switch generic use-LUT detection

Change-Id: I982a8b28c8bcc43e3dc68ac358f978a4bcc14c36
 2013-05-18 17:03:18 +02:00
pascal massimino
2d6ac422cf Merge "webp/lossless: fix big endian BGRA output" 2013-05-17 00:36:15 -07:00
James Zern
2ca83968ae webp/lossless: fix big endian BGRA output 
Change-Id: I3d4b3d21f561cb526dbe7697a31ea847d3e8b2c1
 2013-05-17 00:32:01 -07:00
Vikas Arora
742110ccce Speed up ApplyPalette for ARGB pixels. 
Added 1 pixel cache for palette colors for faster lookup.
This will speedup images that require ApplyPalette by 6.5% for lossless
compression.

Change-Id: Id0c5174d797ffabdb09905c2ba76e60601b686f8
 2013-05-16 15:44:21 -07:00
skal
2451e47dca misc code cleanup 
* remove dec->skip_
* fix some naming

(no speed diff observed)

Change-Id: I12545ef79d29dd6f893c344d8fb171b0a8c7cc46
 2013-05-15 20:03:15 +02:00
pascal massimino
83db404390 Merge "swig: add python (decode) support" 2013-05-15 00:42:36 -07:00
pascal massimino
eeeea8b530 Merge "swig: cosmetics" 2013-05-15 00:42:08 -07:00
pascal massimino
d5f9b8f383 Merge "libwebp: fix vp8 encoder mem alloc offsetting" 2013-05-15 00:41:14 -07:00
James Zern
d8edd83551 libwebp: fix vp8 encoder mem alloc offsetting 
'mem' was being offset once by DO_ALIGN() then shifted 'nz_size' which
would end up accounting for more than ALIGN_CST and exceed the allocation.

broken since:
  9bf3129 align VP8Encoder::nz_ allocation

Change-Id: I04a4e0bbf80d909253ce057f8550ed98e0cf1054
 2013-05-15 00:31:23 -07:00
skal
8983b83ee1 remove use of bit-fields in VP8FInfo 
(in favor of just plain uint8_t's)

Change-Id: I6187587a4d8a9f5c304a132d98ec42ce24fd244a
 2013-05-15 09:21:30 +02:00
skal
87a4fca25f remove some warnings: 
* "declaration of ‘index’ shadows a global declaration [-Wshadow]"
* "signed and unsigned type in conditional expression [-Wsign-compare]"

Change-Id: I891182d919b18b6c84048486e0385027bd93b57d
 2013-05-14 22:28:32 +02:00
Pascal Massimino
ba8f74e229 Merge "fix for big-endian" 2013-05-14 01:58:06 -07:00
pascal massimino
a65067fa77 Merge "Further reduce memory to decode lossy+alpha images" 2013-05-14 01:56:54 -07:00