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13ae011e4c
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Author SHA1 Message Date
Pascal Massimino
13ae011e4c doc: use two's complement explicitly for uint8->int8 conversion 
BUG=webp:225

Change-Id: I6bad131e275dbd992484e95a1b834010121281b8
 2016-09-05 10:57:56 -07:00
hui su
9e478f808e dec/vp8l.c: add assertions in EmitRescaledRowsRGBA/YUVA 
Add assertions to make sure the number of lines that are imported
into rescaler is as expected.

Change-Id: I3e9e4202e696bb09f7aa54519285b6b0deb84c1a
 2016-09-01 20:58:37 -07:00
hui su
43bd895879 Make gif transparent color to be transparent black 
Change it from transparent white to transparent black, which matches
the transparent color assumed in Webp dispose-to-background method.

Also pre-multiply background colors before comparison in anim_diff,
just as what is done with regular pixel values.

Change-Id: I5a790522df21619c666ce499f73e42294ed276f2
 2016-09-01 16:50:14 -07:00
Pascal Massimino
0887fc2d85 Merge "get_disto: add a '-o file' option to save a diff map" 2016-08-31 06:24:49 +00:00
Pascal Massimino
0de48e187d get_disto: add a '-o file' option to save a diff map 
also: -scale option is useful for using the maximum range.

Change-Id: I8ede7132b08ece7d3b6f699b710ab2ef3fb0b734
 2016-08-31 05:31:30 +00:00
James Zern
0a57ad0dc5 cosmetics: WebPSafeAlloc -> WebPSafeMalloc 
Change-Id: I0c47b827cadc18cf739f1648c605311c9bc41375
 2016-08-30 18:34:37 -07:00
James Zern
0a4699bcc9 Merge "WebPPictureDistortion(): free() -> WebPSafeFree()" 2016-08-31 01:27:06 +00:00
hui su
29fedbf58b Anim_encoder: correctly handle enc->prev_candidate_undecided_ 
Set enc->prev_candidate_undecided_ as 0 when a frame is not chosen
as a possible keyframe, so that the dispose method can be
dispose-to-background.

Change-Id: If2899f5dbc06fb53705fb8240072ab6440a6de12
 2016-08-30 15:25:09 -07:00
Pascal Massimino
32dead4ee3 WebPPictureDistortion(): free() -> WebPSafeFree() 
missed one!

Change-Id: I643170451b3ac07c748b70a9abfe8af17a716b24
 2016-08-30 15:43:23 +02:00
Vincent Rabaud
85cd5d061c Smarter LZ77 for uniform regions. 
No need to find backward references for pixels in uniform regions
by looking at all pixels.
Only pixels at the same distance from the end need to be compared to.

Change-Id: I4f187e965f0667d3a929775726a412f7e69f6473
 2016-08-26 09:53:49 +02:00
Pascal Massimino
6585075f8a Change PixelsAreSimilar() to handle black pixels correctly. 
if src_{r,g,b} = 0, any value of src_a or dst_a such that
   abs(src_a - dst_a) <= max_allowed_diff
was making the test pass, despite being very different-looking pixels.

The fix is to require same values for src_a and dst_a before attempting
an r/g/b comparison.

Change-Id: If3a55a229eab3904ed454f20065e49e35c39f25c
 2016-08-25 07:33:18 +02:00
Pascal Massimino
c0a27fd2af vwebp: Clear previous frame when a key triggers a redraw 
otherwise, transparent areas were accumulating.

Change-Id: I066a96a2bcf0cac750b3df0c02229542b1ed3473
 2016-08-24 11:04:17 +02:00
Pascal Massimino
57a5e3b6a5 webp_quality should return '0' in case of success. 
-> clarify the return value in case of error

Change-Id: I6f1e675c80d237b302fada28e7612a684b931c7a
 2016-08-20 21:07:31 +02:00
Vincent Rabaud
7f1b897bee Faster stochastic histogram merging. 
Constants are such that brute force is sometimes faster for some
data (mostly big images it seems).

Change-Id: I90aef536408683535e3b09ddfa2e77a9834038f6
 2016-08-19 14:52:57 +02:00
James Zern
48c810b85c Merge "remove WEBP_FORCE_ALIGNED and use memcpy() instead." 2016-08-18 03:38:44 +00:00
Pascal Massimino
3884972e3f remove WEBP_FORCE_ALIGNED and use memcpy() instead. 
BUG=webp:297

Change-Id: I89a08debec7bb1b3f411c897260ab1bb63f77df2
 2016-08-17 20:16:03 -07:00
Pascal Massimino
485cac1a88 switch libimagedec.a and libimageio_util.a to avoid undefined symbol 
gcc-4.8.3 was giving the undefined reference to ImgIoUtilReadFile and
ImgIoUtilCopyPlane when linking libimagedec.a

Change-Id: I8b85ab3a860602535629d0bb541a39754413728e
 2016-08-17 19:48:08 -07:00
James Zern
005e15b10a Merge "{extras,mux}/Makefile.am: add missing -lm" 2016-08-17 18:18:39 +00:00
skal
6ab496ed22 fix some 'unsigned integer overflow' warnings in ubsan 
I couldn't find a safe way of fixing VP8GetSigned() so i just
used the big-hammer.

Change-Id: I1039bc00307d1c90c85909a458a4bc70670e48b7
 2016-08-16 23:18:27 -07:00
James Zern
8a4ebc6ab0 Revert "fix 'unsigned integer overflow' warnings in ubsan" 
This reverts commit e44f5248ff.

contains unintentional changes in quant.c

Change-Id: I1928f072566788b0c9ea80f6fbc9e571061f9b3e
 2016-08-16 16:55:56 -07:00
Pascal Massimino
9d4f209f80 Merge changes I25711dd5,I43188fab 
* changes:
  Fix assertions in WebPRescalerExportRow()
  Add descriptions of default configuration in help info.
 2016-08-16 22:13:23 +00:00
skal
e44f5248ff fix 'unsigned integer overflow' warnings in ubsan 
I couldn't find a safe way of fixing VP8GetSigned() so i just
used the big-hammer.

Change-Id: I1039bc00307d1c90c85909a458a4bc70670e48b7
 2016-08-16 15:04:41 -07:00
Hui Su
27b5d991e2 Fix assertions in WebPRescalerExportRow() 
Change-Id: I25711dd54e71c90a25f7b18e0ef9155e8151a15e
 2016-08-16 14:32:48 -07:00
Hui Su
74f6f9e793 Add descriptions of default configuration in help info. 
Change-Id: I43188fab5f57bd45aa3e564df52e36cc37b1bb2f
 2016-08-16 14:32:46 -07:00
James Zern
aaf2530cc3 {extras,mux}/Makefile.am: add missing -lm 
+ libwebpmux.pc

quality_estimate.c, anim_encode.c rely on functions from math.h

BUG=webp:306

Change-Id: I3a8eb48febfd52bfbeb04f4dc615ccbed72926f7
 2016-08-15 22:32:46 -07:00
hui su
1269dc7cfb Refactor VP8LColorCacheContains() 
Return key/index if the query is found, and -1 otherwise.
The benefit of this is to save a hashing computation.

Change-Id: Iff056be330f5fb8204011259ac814f7677dd40fe
 2016-08-12 15:16:06 -07:00
James Zern
40872fb2e6 dec_neon,NeedsHev: micro optimization 
trade 2 compares + 1 logical or for max + compare

Change-Id: I785ad8efdc64db2d0609456d6e7af795ab2117d8
 2016-08-08 20:12:30 -07:00
Vincent Rabaud
7b54e26bac Add a CMake option for WEBP_SWAP_16BIT_CSP. 
Change-Id: I79ed6cbce9563bf7ca97fc2e10ec3e75b6b8ab5b
 2016-08-05 09:45:34 +02:00
Vincent Rabaud
d2223d8d6c Fix missing cpu-features for Android. 
Change-Id: Ief13b7c63b96194970b00a5732aa080f794e7ae6
 2016-08-05 09:26:32 +02:00
James Zern
bf16a4b4f8 Merge "cpu.cmake: improve webp_check_compiler_flag output" 2016-08-05 01:53:16 +00:00
James Zern
ee1057e3b1 cpu.cmake: improve webp_check_compiler_flag output 
WEBP_HAVE_FLAG_LOCAL -> WEBP_HAVE_FLAG_${WEBP_SIMD_FLAG} this will
include the flag being tested in the output:
-- Performing Test WEBP_HAVE_FLAG_NEON

Change-Id: I1c0a143a857b16e4eb1fcf8b23c176380a5fef29
 2016-08-03 19:55:18 -07:00
James Zern
b551e587b3 cosmetics: add {}s on continued control statements 
for consistency within the codebase. in some cases simply join the
lines.

Change-Id: I071f061052e274c8a69f651ed4305befb4414a40
 2016-08-03 19:08:59 -07:00
James Zern
d2e4484ef3 dsp/Makefile.am: put msa source in correct lib 
upsampling_msa.c was incorrectly included in the neon convenience lib
+ sort msa sources

Change-Id: I7c4883f16a5c2fed12bfa0e8d8d6a7acd5d4fb84
 2016-08-03 17:50:45 -07:00
Pascal Massimino
c7f66c82b3 Merge "utils/thread.c,cosmetics: join a few lines" 2016-07-28 04:08:48 +00:00
Pascal Massimino
98d8f295b1 Merge "examples/Makefile.am,cosmetics: sort binary targets" 2016-07-28 01:17:36 +00:00
James Zern
39f4ffbcdc utils/thread.c,cosmetics: join a few lines 
Change-Id: I94c142fc6f9e6823ce16ca723145354eae4db9af
 2016-07-27 18:10:18 -07:00
Pascal Massimino
a86ce2b1e2 Merge "extras/Makefile.am: don't install libwebpextras" 2016-07-28 01:07:56 +00:00
James Zern
6fa9fe2482 extras/Makefile.am: don't install libwebpextras 
the version info was stripped earlier in:
ad497fb move src/extras to the top-level

Change-Id: I15134d95f49fbd3830df82667af12b8f3a5a7673
 2016-07-26 19:19:56 -07:00
hui su
0b2c58a91c Fix an unsigned integer overflow error in enc/cost.h 
Change-Id: I9774b59c417c185f09a61a115364b9642976a100
 2016-07-26 13:55:09 -07:00
James Zern
d7ce4a2e3e examples/Makefile.am,cosmetics: sort binary targets 
Change-Id: I1a592bfcdf55b41814eaf971b43a773c26fbb651
 2016-07-25 22:39:54 -07:00
hui su
386e4ba2f0 Reset segment id if we decide not to update segment map 
This avoids potential encoder and decoder mismatch.

Change-Id: I5282d3e168afc6193033ad3fce8fbc35618ab2f5
 2016-07-25 17:08:10 -07:00
Parag Salasakar
7b87e8485b Merge "Add MSA optimized YUV to RGB upsampling functions" 2016-07-22 17:26:33 +00:00
Parag Salasakar
d3ddacb625 Add MSA optimized YUV to RGB upsampling functions 
We add the following MSA optimized YUV to RGB upsampling functions:
- UpsampleRgbLinePair
- UpsampleBgrLinePair
- UpsampleRgbaLinePair
- UpsampleBgraLinePair
- UpsampleArgbLinePair
- UpsampleRgba4444LinePair
- UpsampleRgb565LinePair

Change-Id: I7264a615edc7eb376e443e9d38bd8e3c9a2cab1f
 2016-07-22 14:28:30 +00:00
Pascal Massimino
eb98d8d87c webp_quality: detect lossless format and features 
lossless bitstream are returned as quality 101

Change-Id: I8b28287169b710ecf8d4d694abbf0cedc6447908
 2016-07-22 00:16:56 -07:00
James Zern
ebee57f4d1 move imageio/example_util.[hc] (back to) examples/ 
decoding and file i/o have been split to imageio, all that remains is
some string routines used for parameter parsing in the examples

Change-Id: I77386cd8aa39124b9e14c95fdbaa17ea4ab5bb24
 2016-07-21 20:41:03 -07:00
James Zern
99542bbf3e webpdec: s/ExUtil// 
PrintWebPError, LoadWebP, DecodeWebP, DecodeWebPIncremental

Change-Id: Ie17578b91c7efdf6e5fe63568a95f79788b7f8ee
 2016-07-21 20:40:11 -07:00
James Zern
da573cf490 imageio_util: s/ExUtil/ImgIoUtil/ 
ExUtil(SetBinaryMode|ReadFile|ReadFromStdin|WriteFile|CopyPlane) ->
ImgIoUtil(SetBinaryMode|ReadFile|ReadFromStdin|WriteFile|CopyPlane)

Change-Id: I5497f8fe514347efeb83b8b8866ef334390fc18e
 2016-07-21 20:40:11 -07:00
James Zern
bdda5bd4bf split example_util.h 
move ExUtil*File to imageio_util.h
ExUtil*WebP* to webpdec.h

string parsing routines remain

Change-Id: I0560c4a74e86710d83bc4b5b234f1b5ef9a86f9d
 2016-07-21 19:14:58 -07:00
James Zern
15ed462b2d .gitignore: add extras/{get_disto,webp_quality} 
Change-Id: Ibc0178e3abdf8de86183cbfded9a9b2400246ac7
 2016-07-21 15:26:48 -07:00
Pascal Massimino
7be5748963 Merge "VP8EstimateQuality(): roughty estimate webp bitstream quality factor" 2016-07-21 13:48:19 +00:00