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22 Commits

Author SHA1 Message Date
Pascal Massimino
dcf9d82a95 imageio: add limited PNM support for reading 
see: http://netpbm.sourceforge.net/

Only reads P5 and P6 pnm files for now.

Change-Id: I2332a623f803df67455047f570f1cff9f464480a
 2017-02-01 07:41:56 +00:00
James Zern
668e1dd44f src/{dec,enc,utils}: give filenames a unique suffix 
this avoids duplicates between these trees and dsp/, e.g., enc/tree.c,
dec/tree.c, making pulling the whole library source tree into one target
possible

BUG=webp:279

Change-Id: I060a614833c7c24ddd37bf641702ae6a5eef1775
 2017-01-19 19:09:48 -08:00
Pascal Massimino
1de931c669 NEON: implement alpha-filters (horizontal/vertical/gradient) 
gradient-filter code is not much faster, but maybe improvable in the future.

Change-Id: Ia16070e409fe8703b02276166f19526917df6b35
 2017-01-17 15:44:46 +01:00
Pascal Massimino
49d0280df1 NEON: implement several alpha-processing functions 
- ApplyAlphaMultiply
 - DispatchAlpha
 - DispatchAlphaToGreen
 - ExtractAlpha

Decoding to Argb / rgbA / ... is 10-15% faster (measured on N4)

new file: alpha_processing_neon.c

Change-Id: I40f1a809e9885d1031ff0bc886d8d001efa66bca
 2017-01-11 17:39:29 +01:00
Pascal Massimino
03f40955a3 img2webp: convert a sequence of images to an animated webp 
Usage:

  img2webp [file-level options] [image files...] [per-frame options...]

File-level options (only used at the start of compression):
 -min_size ............ minimize size
 -loop <int> .......... loop count (default: 0, = infinite loop)
 -kmax <int> .......... maximum number of frame between key-frames
                        (0=only keyframes)
 -kmin <int> .......... minimum number of frame between key-frames
                        (0=disable key-frames altogether)
 -mixed ............... use mixed lossy/lossless automatic mode
 -v ................... verbose mode
 -h ................... this help

Per-frame options (only used for subsequent images input):
 -d <int> ............. frame duration in ms (default: 100)
 -lossless  ........... use lossless mode (default)
 -lossy ... ........... use lossy mode
 -q <float> ........... quality
 -m <int> ............. method to use

example: img2webp -loop 2 in0.png -lossy in1.jpg
                  -d 80 in2.tiff -o out.webp

Change-Id: I23771b90eaf0660f420d7ffd304e704155386286
 2016-12-02 11:44:17 +01:00
Vincent Rabaud
6cc48b1728 Move some lossless logic out of dsp. 
Change-Id: I4cfd60cd5497666a2e1c188ceada2e71b05f1505
 2016-09-13 15:37:32 +02:00
Pascal Massimino
af1ad3e2dd libimageenc.a: extract image-saving code from dwebp 
BUG=webp:277
Change-Id: I2c0e1df7b13b1f77474b5478048fef022e90f77a
 2016-09-08 19:11:26 -07:00
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
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
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
c379b55a93 move examples/{example_util,image_dec} to imageio/ 
Change-Id: I2508c786a095a2a75bebf766210c64e2af88f9b6
 2016-07-19 19:06:29 -07:00
Parag Salasakar
9ac74f922e Add MSA optimized rescaling functions 
We add the following MSA optimized rescaling functions:
- RescalerExportRowExpand
- RescalerExportRowShrink

Change-Id: Ic1c76065423b02617db94cf0c22bb564219b36e6
 2016-07-19 15:52:42 +00:00
Parag Salasakar
cb19dbc1a4 Add MSA optimized color transform functions 
We add the following MSA optimized color transform functions:
- TransformColor
- SubtractGreenFromBlueAndRed

Change-Id: Ib182d2b5faa7191f503ce70f0dfde0ac89402fd3
 2016-07-18 13:49:24 +00:00
James Zern
48bf5ed134 build.gradle: remove tab 
Change-Id: I04db4aa83a3a8db44c67dfa50ee12b5fb155840e
 2016-07-06 20:36:08 -07:00
Parag Salasakar
435308e029 Add MSA optimized encoder transform functions 
We add the following MSA optimized encoder transform functions:
- ITransform
- FTransform
- FTransformWHT

Change-Id: Ia6b17556aba5aff2d7a88208905fb45293d080a8
 2016-07-05 14:35:47 +00:00
Parag Salasakar
dce64bfa1b Add MSA optimized alpha filter functions 
We add the following MSA optimized alpha filter functions:
- HorizontalFilter
- VerticalFilter
- GradientFilter

Change-Id: I71e2e04050e569b8c0bf086fadf210ee16d50924
 2016-07-01 19:58:25 +00:00
Parag Salasakar
701c772eed Add MSA optimized colorspace conversion functions 
We add the following MSA optimized colorspace conversion functions:
- ConvertBGRAToRGBA
- ConvertBGRAToBGR
- ConvertBGRAToRGB

Change-Id: I76db1c829d593a06d4975d54dbafa385c82b84fb
 2016-06-27 21:19:06 +00:00
Parag Salasakar
5e60c42a76 Added MSA optimized transform functions 
1. TransformWHT
2. TransformTwo
3. TransformDC
4. TransformAC3

Change-Id: Ia3624cb4aed215bcaffce542b28794e643207039
 2016-06-16 09:04:27 +00:00
Pascal Massimino
ae2a7222ce collect all decoding utilities from examples/ in libexampledec.a 
adds a generic examples/image_dec.[ch] entry point too.

WebPGuessImageType() can be used to infer image type.

Change-Id: I8337e7b6ad91863c9cf118e4791668d2d175079b
 2016-06-01 05:39:55 +00:00
Vincent Rabaud
c9e6d865aa Add gradle support 
Change-Id: I8d522e582959e1a17605430316c1506349a7193c
 2016-05-24 15:35:20 +02:00
Vincent Rabaud
c65f41e816 Revert "Add gradle support" 
This reverts commit bf731ede7e.

Change-Id: Iffabc2a69a25685ba367c26f54d84c43f2c19d68
 2016-05-24 10:47:36 +00:00
Vincent Rabaud
bf731ede7e Add gradle support 
Change-Id: I9e5ec253897f63cb163b3f732ff844262ba07db6
 2016-05-24 11:05:27 +02:00