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Author SHA1 Message Date
James Zern
33109f990a Merge "drop: ifdef __cplusplus checks from C files" 2013-12-16 20:13:09 -08:00
James Zern
7f9de0b948 Merge changes I994a5587,I8467bb71,I13b50688,I1e2c9c7b 
* changes:
  gif2webp: let -- stop parameter parsing
  vwebp: let -- stop parameter parsing
  cwebp: let -- stop parameter parsing
  dwebp: let -- stop parameter parsing
 2013-12-16 16:53:27 -08:00
James Zern
5459030be0 gif2webp: let -- stop parameter parsing 
this enables gif2webp to accept input files starting with '-'

Change-Id: I994a5587e16e3af83ca45bfda8caf2dc39068b6c
 2013-12-16 15:15:20 -08:00
James Zern
a4b0aa06ee vwebp: let -- stop parameter parsing 
this enables vwebp to accept input files starting with '-'

Change-Id: I8467bb719ba745b2aa14a5c5ce2ff392cd9601d5
 2013-12-16 15:14:00 -08:00
James Zern
98af68fe26 cwebp: let -- stop parameter parsing 
this enables cwebp to accept input files starting with '-'

Change-Id: I13b506886c3df8a4e8fb350f3d365eaf7e072a4a
 2013-12-16 15:13:54 -08:00
James Zern
a33831e21a dwebp: let -- stop parameter parsing 
this enables dwebp to accept input files starting with '-'

Change-Id: I1e2c9c7bc2963d77be039c99e72f744560f0b0a2
 2013-12-16 15:13:32 -08:00
Pascal Massimino
363012497b add some checks on error paths 
malloc failure could lead to free'ing non-initialized pointers

Change-Id: I8156aac1fce9a47825cfd0d88eb2bd8c38a630d5
 2013-12-16 13:33:45 -08:00
James Zern
ce4c713904 Merge "autoconf: add --disable-wic" 2013-12-16 10:45:11 -08:00
James Zern
5227d99146 drop: ifdef __cplusplus checks from C files 
the prototypes are already marked in the headers

Change-Id: I172fe742200c939ca32a70a2299809b8baf9b094
 2013-12-13 11:42:13 -08:00
James Zern
f64535591c dwebp.1: fix typo 
ICM4 -> IMC4

Change-Id: I065a1ac0dfd0b60efa782bc1a4df1adcb28b90e4
 2013-12-12 20:38:23 -08:00
James Zern
f91034f241 Merge "cwebp: print metadata stats when no output file is given" 2013-12-12 19:28:35 -08:00
Urvang Joshi
d49345533f gif2webp: Backward compatibility for giflib version <= 4.1.3 
Fixes https://code.google.com/p/webp/issues/detail?id=172

We use 'int' instead of 'GifWord', which was introduced in version
4.1.4.

Tested OK on 4.1.3
(http://sourceforge.net/projects/giflib/files/giflib-4.x/giflib%204.1.3/)
and 5.0.4

Change-Id: I77628b0f9175a91eb3a22e64fc55dd00633add1f
 2013-12-11 08:46:38 -08:00
Urvang Joshi
4c617d3286 gif2webp: Disable output of ICC profile by default 
This is to discourage generation of animated WebP images with ICC
profile, as
the real-world use-case for such images is rare at best.

Output of ICC/XMP metadata is now controlled by the '-metadata' option.

Change-Id: I8e3e29878c32bf46cbc661f50661bac602603c43
 2013-12-10 14:53:06 -08:00
skal
73b731fb42 introduce a special quantization function for WHT 
WHT is somewhat a special case: no sharpen[] bias, etc.
Will be useful in a later CL when precision of input is changed.

Change-Id: I851b06deb94abdfc1ef00acafb8aa731801b4299
 2013-12-10 14:21:47 +01:00
skal
41c0cc4b9a Make Forward WHT transform use 32bit fixed-point calculation 
This is in preparation for a future change where input will
be 16bit instead of 12bit

No speed diff observed.

Note that the NEON implementation was using 32bit calc already.

Change-Id: If06935db5c56a77fc9cefcb2dec617483f5f62b4
 2013-12-10 06:10:52 +01:00
skal
a3359f5d2c Only compute quantization params once 
(all quantization params #1..#15 are the same)

Change-Id: If04058bd89fe2677b5b118ee4e1bcce88f0e4bf5
 2013-12-10 05:36:23 +01:00
James Zern
7049043775 cwebp: print metadata stats when no output file is given 
this is more consistent with the encode stats

Change-Id: I5793062b3b29f5cb891461d6faaa53b43c0a4482
 2013-12-09 20:15:54 -08:00
skal
d513bb62bc * fix off-by-one zthresh calculation 
* remove the sharpening for non luma-AC coeffs
* adjust the bias a little bit to compensate for this

Using the multiply-by-reciprocal doesn't always give the same result
as the exact divide, given the QFIX fixed-point precision we use.
-> removed few now-unneeded SSE2 instructions (and checked for
bit-exactness using -noasm)

Change-Id: Ib68057cbdd69c4e589af56a01a8e7085db762c24
 2013-12-09 13:56:04 +01:00
James Zern
ad9dec0c24 Merge "cosmetics: dwebp: fix local function name format" 2013-12-07 13:38:54 -08:00
James Zern
f737f0376a Merge "dwebp: remove a dead store" 2013-12-07 13:38:42 -08:00
James Zern
3c3a70da6d Merge "makefile.unix: install binaries in $(DESTDIR)/bin/" 2013-12-07 13:38:28 -08:00
James Zern
150b655f74 Merge "Android.mk: add some release compile flags" 2013-12-07 13:38:15 -08:00
James Zern
dbebd33be7 cosmetics: dwebp: fix local function name format 
error_function -> PNGErrorFunction

Change-Id: Ic6c0e676cc47bca2c1a1e0d8e95639e780982b1b
 2013-12-07 13:26:05 -08:00
James Zern
2774995185 dwebp: remove a dead store 
Change-Id: I48205472e99e997702d25c39f1b4d7a4699c15d6
 2013-12-07 13:22:22 -08:00
James Zern
a01e04fee0 autoconf: add --disable-wic 
this allows windows builds to prefer libjpeg, libpng etc. for import and
export

Change-Id: Ibe1648b68a3f7b5016044e82530843dea46a94a4
 2013-12-07 11:56:34 -08:00
James Zern
5009b22746 makefile.unix: install binaries in $(DESTDIR)/bin/ 
Change-Id: I6c8f87aaa185fc043b80800430d99deaa1e5966b
 2013-12-06 20:40:12 -08:00
Pascal Massimino
bab30fcab5 Merge "fix -print_psnr / ssim options" 2013-12-05 14:04:37 -08:00
Pascal Massimino
ebef7fb307 fix -print_psnr / ssim options 
original/compressed pictures were not converted to an adequate YUVA
colorspace before computing the distortion.

Change-Id: I37775e9b7dbd6eca16c38e235e1df325858d36a1
 2013-12-05 14:03:59 -08:00
skal
cb63785545 Merge "fix bug due to overzealous check in WebPPictureYUVAToARGB()" 2013-12-04 00:54:35 -08:00
pascal massimino
8189885b6d Merge "EstimateBestFilter: use an int to iterate WEBP_FILTER_TYPE" 2013-12-03 23:32:41 -08:00
Charles Munger
4ad7d33510 Android.mk: add some release compile flags 
-ffunction-sections / -fdata-sections
can improve final binary size when used with --gc-sections, speed impact
untested

Change-Id: I37f4b5da2f34acede7965c2da2e1b97125473adc
 2013-12-03 23:00:49 -08:00
James Zern
c12e2369d8 cosmetics: fix a few typos 
Change-Id: I73b1900b2d960c4c57ef7078df137c776b321a1b
 2013-12-03 22:36:29 -08:00
skal
6f104034a1 fix bug due to overzealous check in WebPPictureYUVAToARGB() 
This tests prevented views to be converted to ARGB

https://code.google.com/p/webp/issues/detail?id=178

Change-Id: I5ba66da2791e6f1d2bfd8c55b5fffe6955263374
 2013-12-02 15:23:12 +01:00
James Zern
3f6c35c6f3 EstimateBestFilter: use an int to iterate WEBP_FILTER_TYPE 
this change allows the code to be built with a C++ compiler without the
addition of an operator++

Change-Id: I2f2fae720b9772abfc3c540bb2e3bf9107d96cc9
 2013-11-27 20:10:45 -08:00
James Zern
cc55790e37 Merge changes I8bb7a4dc,I2c180051,I021a014f,I8a224a62 
* changes:
  mux: add some missing casts
  enc/vp8l: add a missing cast
  idec: add some missing casts
  ErrorStatusLossless: correct return type
 2013-11-27 17:06:35 -08:00
James Zern
c536afb57b Merge "cosmetics: fix some typos" 2013-11-27 17:04:00 -08:00
skal
cbdd3e6e53 add a -dither dithering option to the decoder 
Even at high quality setting, the U/V quantizer step is limited
to 4 which can lead to banding on gradient.
This option allows to selectively apply some randomness to
potentially flattened-out U/V blocks and attenuate the banding.

This option is off by default in 'dwebp', but set to -dither 50
by default in 'vwebp'.

Note: depending on the number of blocks selectively dithered,
we can have up to a 10% slow-down in decoding speed it seems.

Change-Id: Icc2446007f33ddacb60b3a80a9e63f2d5ad162de
 2013-11-27 00:57:51 -08:00
Vikas Arora
e812401299 Updated iosbuild.sh for XCode 5.x 
Change-Id: I4bf545c4f394c28842cbb85ac70214d2e5477ae0
 2013-11-26 20:08:02 -08:00
James Zern
4931c3294b cosmetics: fix some typos 
Change-Id: I0d6efebd817815139db5ae87236fd8911df4d53c
 2013-11-26 19:21:14 -08:00
James Zern
05aacf77c2 mux: add some missing casts 
+ fix a return value
+ fix a param type

Change-Id: I8bb7a4dc4c76b11140f8693c909aeb10f660e6e5
 2013-11-25 20:53:15 -08:00
James Zern
617d93480e enc/vp8l: add a missing cast 
Change-Id: I2c1800516eb4573ae2599866ace10017b865f23a
 2013-11-25 20:48:13 -08:00
James Zern
46db286572 idec: add some missing casts 
Change-Id: I021a014f1f3a597f37ba8d9f4006c8cb4100723c
 2013-11-25 20:47:35 -08:00
James Zern
b524e3369c ErrorStatusLossless: correct return type 
int -> VP8StatusCode

Change-Id: I8a224a622e98d401a6e401047780fa6b25cb0ae4
 2013-11-25 20:45:53 -08:00
skal
cb261f790f fix a descaling bug for vertical/horizontal U/V interpolation 
RGBToU/V calls expects two extra precision bits, they were only
given one by SUM2H and SUM2H macros.

For rounding coherency, also changed SUM1 macro.

Change-Id: I05f96a46f5d4f17b830d0420eaf79b066cdf78d4
 2013-11-19 11:24:09 +01:00
James Zern
bcb3955c41 Merge changes I48968468,I181bc736 
* changes:
  demux: split chunk parsing from ParseVP8X
  demux: add a tail pointer for chunks
 2013-11-18 17:03:33 -08:00
Urvang Joshi
73f52133a1 gif2webp: Add a mixed compression mode 
When '-mixed' option is given, each frame would be heuristically chosen
to be
encoded using lossy or lossless compression.

The heuristic is based on the number of colors in the image:
- If num_colors <= 31, pick lossless compression
- If num_colors >= 194, pick lossy compression
- Otherwise, try both and pick the one that compresses better.

Change-Id: I908c73493ddc38e8db35b7b1959300569e6d3a97
 2013-11-17 18:04:07 -08:00
James Zern
6198715e89 demux: split chunk parsing from ParseVP8X 
makes the header and chunk parsing portions slightly more digestible

Change-Id: I48968468b2529506b830e96a2f13e8d29976179b
 2013-11-16 11:06:43 -08:00
James Zern
d2e3f4e6b5 demux: add a tail pointer for chunks 
a large number of non-frame chunks could slow the parse

Change-Id: I181bc73626e92263c3c5b2a6dc2bf6e6a0481d52
 2013-11-16 10:57:09 -08:00
James Zern
87cffcc3c9 demux: cosmetics: s/has_frames/is_animation/ 
animation matches the flag name
s/has_fragments/is_fragmented/ to match.

Change-Id: I86c834e19bab6db6610ea2ccf900ab3ebffafa8a
 2013-11-16 10:32:56 -08:00
James Zern
e18e66779b demux: strictly enforce the animation flag 
if the flag is incorrectly set in a VP8L or VP8/ALPH single image file
the demux will now fail.

Change-Id: Id4d5f2d3f6922a29b442c5d3d0acbe3d679e468a
 2013-11-14 16:01:36 -08:00