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Author SHA1 Message Date
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
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
James Zern
78fd199c3b backward_references_enc.c: clear -Wshadow warnings 
index -> position

similar to: 2f5e8934 remove -Wshadow warnings

Change-Id: Ieaf8363d726a8fdf4e799845a81364e1dfae438a
 2017-03-22 23:52:19 -07:00
James Zern
ae836410bb WebPLog2FloorC: clear -Wshadow warning 
log -> log_value

Change-Id: Iae7cea7e0875e59b0806de41eb0b58815307495e
 2017-03-22 23:50:31 -07:00
Pascal Massimino
d0b7404e00 Merge "WASM support" 2017-03-21 13:27:55 +00:00
Pascal Massimino
134e314fd8 WASM support 
demo page: webp_js/index_wasm.html

Change-Id: I9e6bde205c2730f96c5f30ec01f4bfacf1f5d128
 2017-03-21 14:07:22 +01:00
Pascal Massimino
c08adb6fbc Merge "VP8LEnc: remove use of BitsLog2Ceiling()" 2017-03-20 13:12:19 +00:00
Pascal Massimino
28c37ebd5a VP8LEnc: remove use of BitsLog2Ceiling() 
was only used once. Better fall back for Log2Floor.

Change-Id: Ibcc26505440971bffe62ba6aca3d179ca85791d4
 2017-03-20 02:58:16 -07:00
James Zern
2cb58ab2d7 webpinfo: output format as a human readable string 
Change-Id: I3a3d95bae049ee1053c9d92a364cf1b75f277f81
 2017-03-17 00:23:11 -07:00
Pascal Massimino
bb175a935e Merge "rename some symbols clashing with MSVC headers" 2017-03-16 17:53:37 +00:00
Vincent Rabaud
39eda6584f Remove a duplicated pixel hash implementation. 
Change-Id: If0df61add2fdf404f9baf0820ca83faa50f2791c
 2017-03-16 16:15:40 +01:00
Pascal Massimino
36b8274deb rename some symbols clashing with MSVC headers 
This is to prepare the inclusion of <windows.h>

FrameRect => FrameRectangle
CLIP_MASK => CLIP_8b_MASK

Change-Id: Ia4b1fa4ac06137b4102c91e232206a1fb7159ce0
 2017-03-16 10:42:00 +01:00
Pascal Massimino
274daf5415 Add webpinfo tool. 
A command line tool to print out the chunk level structure of
WebP files along with basic integrity checks.

BUG=webp:330

Change-Id: Ic69f646f649abb655b1854621d99afedeed158d7
 2017-03-14 11:41:17 +01:00
Pascal Massimino
ec5036e475 add explicit reference to /usr/local/{lib,inc} 
Change-Id: Idf0450bc715c476950f23b2f9db383a5b9936890
 2017-03-08 09:14:15 +01:00
Pascal Massimino
18f0dfac82 Merge "fix TIFF encoder regarding rgbA/RGBA" 2017-03-08 08:07:43 +00:00
James Zern
4e2b0b50ea Merge "webpdec.h: fix a doc typo" 2017-03-06 22:48:02 +00:00
Vincent Rabaud
e2eeabff12 Merge "Install binaries, libraries and headers in CMake." 2017-03-06 08:22:08 +00:00