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Author SHA1 Message Date
Vincent Rabaud
355c3d1bc7 Integrate a new LZ77 looking for matches in the neighborhood of a pixel only. 
Change-Id: Ie2bbfee0a8d154b58f4a3068f3f634b7dad4c12d
 2017-06-08 15:19:40 +02:00
Vincent Rabaud
a1779a017b Refactor LZ77 handling in preparation for a new method. 
Change-Id: If305c328c8f508bd778d1af108e4eb979fbd2eca
 2017-06-07 16:43:04 +02:00
James Zern
67de68b5d9 Android.mk/build.gradle: fix mips build with clang from r14b 
fixes unknown instruction errors for e.g.,
usw    $15, 0($8)

BUG=webp:343

Change-Id: I71d00527fecd2370a40f6bd12f4e361fb525477f
 2017-06-03 13:06:54 -07:00
Vincent Rabaud
f209a5481e Use the plane code and not the distance when computing statistics. 
As backward references use the plane code when checking the cost
of a distance, statistics used to compute the cost should use it too.
This provides a small compression improvement at no speed cost.

Change-Id: Icade150929ee39ef6dc0d8b1fc85973086ecf41d
 2017-06-01 17:08:43 +02:00
Vincent Rabaud
b903b80c30 Split cost-based backward references in its own file. 
Change-Id: I4d8281e69b0e41f7c90337e5be70a6c65b044086
 2017-06-01 16:22:31 +02:00
Vincent Rabaud
498cad34be Cosmetic changes in backward reference. 
Change-Id: Ieb3dd65a647c034f67cf029e7b03f843b4650b0f
 2017-06-01 14:20:16 +02:00
Vincent Rabaud
e4eb458741 lossless, VP8LTransformColor_C: make sure no overflow happens with colors. 
Change-Id: Iec0d07cf1188ba96391cdb1b62131fc1469dfac6
 2017-05-24 11:34:40 +02:00
hui su
af6deaffa0 webpinfo: handle alpha flag mismatch 
Throw a warning for false positive vp8x alpha flag;
throw an error for false negative vp8x alpha flag.

BUG=webp:330

Change-Id: I3933588c9d6d76ecaf515517f7506dea299af638
 2017-05-23 10:28:25 -07:00
Vincent Rabaud
7caef29b86 Fix typo that creeped in. 
Change-Id: I600725721d9df80d6deddc65e00663649a47c941
 2017-05-23 17:10:34 +02:00
Vincent Rabaud
39e19f927c Merge "near lossless: fix unsigned int overflow warnings." 2017-05-23 14:47:47 +00:00
Vincent Rabaud
9bbc0891c6 near lossless: fix unsigned int overflow warnings. 
Change-Id: Ic1111a66761b5821cbbea1c91b038b2327dd20b5
 2017-05-23 13:43:08 +02:00
Pascal Massimino
e1118d624d Merge "cosmetics,FindClosestDiscretized: use uint in mask creation" 2017-05-23 05:47:20 +00:00
Hui Su
186bc9b735 Merge "webpinfo: tolerate ALPH+VP8L" 2017-05-22 17:17:09 +00:00
James Zern
b588729740 cosmetics,FindClosestDiscretized: use uint in mask creation 
Change-Id: Ib1edd74be1c051c10cfe2defadbea48cabe15135
 2017-05-22 08:21:44 -07:00
James Zern
f1784aee04 near_lossless,FindClosestDiscretized: use unsigned ops 
quiets undefined sanitizer warnings of the form:
left shift of 128 by 24 places cannot be represented in type 'int'

Change-Id: I8a389f2ac9238513517180f302f759425eeb7262
 2017-05-22 03:11:03 -07:00
hui su
0d20abb36f webpinfo: tolerate ALPH+VP8L 
Change-Id: I63cec2d021c0bfaa188017813813bddaadfbeacb
 2017-05-19 14:58:44 -07:00
hui su
972104b34b webpmux: tolerate false positive Alpha flag 
Change-Id: I390aebdda31f5320e83b7d7012735947a234650b
 2017-05-19 11:26:37 -07:00
James Zern
dd7e83cca7 tiffdec,ReadTIFF: ensure data_size is < tsize_t max 
Change-Id: I0ad9589a7f994294100e1c5a38abf6ebe417f8a9
 2017-05-17 13:02:06 -07:00
James Zern
d988eb7b39 tiffdec,MyRead: quiet -Wshorten-64-to-32 warning 
Change-Id: I7e2c7a9b80278b3056151c74a939b0f55bbbc90c
 2017-05-17 12:06:53 -07:00
hui su
dabda70733 webpinfo: add support to parse Alpha bitstream 
BUG=webp:330

Change-Id: I9ed0923d19558052d63bdbe93a542c51595fdce7
 2017-05-17 09:35:58 -07:00
James Zern
4c1176432a webpinfo: correct background color output, BGRA->ARGB 
bgcolor is stored little-endian, byte order is BGRA, with A being the
high byte

Change-Id: I8327380c039634120ee2313044781a5651513dcb
 2017-05-16 11:51:44 -07:00
Vincent Rabaud
defc98d72c Doc: clarify the role of quality in WebPConfig. 
Change-Id: I13706847f6263b9bb91eaf3c9284dd2d42ea7a85
 2017-05-15 18:01:35 +02:00
Vincent Rabaud
d78ff78095 Merge "Fix code to compile with C++." 2017-05-15 15:11:11 +00:00
Vincent Rabaud
c8f14093ac Fix code to compile with C++. 
Change-Id: I324236440cb853cb3c8fb278ef22449cd9772ad7
 2017-05-15 16:22:03 +02:00
James Zern
497dc6a70d pnmdec: sanitize invalid header output 
Change-Id: I034cb00047f725e1cd106d3677db567f1efa0847
 2017-05-15 04:57:45 -07:00
Pascal Massimino
d78e5867ff Merge "configure: test for -Wconstant-conversion" 2017-05-13 06:10:21 +00:00
James Zern
481e91eb86 Merge "pnmdec,PAM: set bytes_per_px based on depth when missing" 2017-05-13 00:47:36 +00:00
James Zern
93b1275373 configure: test for -Wconstant-conversion 
Change-Id: Idf442e35dd8b414c30b8f53ade6f32dfa6f74d39
 2017-05-12 17:02:06 +02:00
James Zern
645f0c53de pnmdec,PAM: set bytes_per_px based on depth when missing 
this avoids setting bytes_per_px < depth causing an undersized
allocation for rgb import resulting in a crash.

BUG=b/37930872

Change-Id: I32a86f91528acc084a53d08c9fde9f2f1270a603
 2017-05-10 19:15:50 -04:00
Pascal Massimino
e91546054d Merge "vwebp: activate GLUT double-buffering" 2017-05-10 05:46:20 +00:00
Pascal Massimino
818d795b09 vwebp: activate GLUT double-buffering 
This prevents the flickering of animated webp + alpha.

Change-Id: I335a434ccc6c90e32528c9832555a38cc0f71cc4
 2017-05-10 05:16:47 +00:00
hui su
d63e6f4b23 Add a man page for webpinfo 
BUG=webp:330

Change-Id: I7b02274401c935affa173a49a883a39272b6dcc3
 2017-05-09 16:14:44 -07:00
Pascal Massimino
4d7084350e Merge "NEON: implement ConvertRGB24ToY/BGR24/ARGB/RGBA32ToUV/ARGBToUV" 2017-05-09 15:33:34 +00:00
Pascal Massimino
faf42213f4 NEON: implement ConvertRGB24ToY/BGR24/ARGB/RGBA32ToUV/ARGBToUV 
Change-Id: Ie68aaed36d17f56d998c1b284514860cf5d28b8a
 2017-05-09 15:57:20 +02:00
Vincent Rabaud
b4d576fa9c Install man pages with CMake. 
Change-Id: I58a91ea00d45e1ce95250bd73613cf53e3af8401
 2017-05-09 11:41:48 +02:00
Hui Su
cbc1b92117 webpinfo: add features to parse bitstream header 
BUG=webp:330

Change-Id: If2a6ff010219fa25a2b5843725c616ee4dce65a7
 2017-05-04 09:18:11 -07:00
Vincent Rabaud
e644c556c5 Fix bad bit writer initialization. 
When re-initializing a bit writer, we could set invalid values because
the bit writer was not big enough.

Change-Id: Id25ab6712603245a5a12d5f4a86fe35a9a799a5d
 2017-05-02 18:59:01 +02:00
Pascal Massimino
b62cdad287 Merge "Implement a cruncher for lossless at method 6." 2017-04-28 14:37:57 +00:00
skal
da3e4dfb6f use the exact constant for the gamma transfer function 
As found in BT2020 reference:
https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.2020-2-201510-I!!PDF-E.pdf

The difference in output-size/PSNR are under the noise level.

Change-Id: I42c12000b61dca791226f3af772c5bd9d58201b8
 2017-04-27 11:53:15 -07:00
James Zern
a9c701e04f Merge "tiffdec: fix EXTRASAMPLES check" 2017-04-27 17:39:34 +00:00
Vincent Rabaud
adab8ce020 Implement a cruncher for lossless at method 6. 
Go over the whole compression step for each of the
transforms and pick the best one.

Change-Id: I3a1b1458348c468558be0fcf491038a5724c9364
 2017-04-27 18:16:04 +02:00
Pascal Massimino
1b92b237ac Merge "Fix VP8ApplyNearLossless to respect const and stride." 2017-04-27 15:56:47 +00:00
James Zern
1923ff0222 tiffdec: fix EXTRASAMPLES check 
the TIFFGetField() return for TIFFTAG_EXTRASAMPLES is defined as (count,
types array) [1]. previously the count was being checked rather than the
first element of the array to determine whether the alpha was associated
(pre-multiplied) and the result needed to be unmultiplied.

since:
9273e441 fix TIFF encoder regarding rgbA/RGBA

[1] http://www.libtiff.org/man/TIFFSetField.3t.html

Change-Id: I6e41be9d038fe8afb6d0aa3c8048925dc901113b
 2017-04-26 22:49:11 -07:00
James Zern
97cce5ba83 tiffdec: only request EXTRASAMPLES w/> 3 samples/px 
Change-Id: I820e7de34e500c42ab51c97a70f25319807d58eb
 2017-04-25 19:10:08 -07:00
Vincent Rabaud
0dcd85b6c4 Fix VP8ApplyNearLossless to respect const and stride. 
Change-Id: I94a90220b5a175228fc48a4b299847b60cf5081b
 2017-04-25 19:04:52 +02:00
Pascal Massimino
f768218966 yuv: rationalize the C/SSE2 function naming 
+ implement some easy missing targets in SSE2 (565/4444)

Change-Id: Ib575f7ada2a0ed7309cddd238f8bfc0e8999f145
 2017-04-21 13:52:25 +02:00
Pascal Massimino
52245424b0 NEON implementation of some Sharp-YUV420 functions 
Change-Id: I449ef9c76b06f971f6e2ad7f9db96bf906d8fe1f
new-file: dsp/yuv_neon.c
 2017-04-18 19:22:37 +02:00
Vincent Rabaud
690efd82f8 Avoid several backward reference copies. 
An extra VP8LBackwardRefs struct is used but it was used internally anyway.

Change-Id: Ifcb36ce42b8c21ef3c7a1daf38cb7f714687fcb2
 2017-04-14 15:34:50 +02:00
hui su
4bb1f607d7 src/dec/vp8_dec.h, cosmetics: fix comments 
Change-Id: If076cdf63965bad9b00cbe19c922320638b65f46
 2017-04-07 15:29:57 -07:00
James Zern
285748be78 cmake: build/install webpinfo 
Change-Id: Ia3dd24aec0c985855865f32280de1799d4bb8e9e
 2017-03-23 20:37:52 -07:00