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389 Commits

Author SHA1 Message Date
pascal massimino
2172cb626a Merge "webpmux: fix loop_count range check" 2014-09-11 23:02:37 -07:00
pascal massimino
e3b343ece7 Merge "examples: warn on invalid numeric parameters" 2014-09-11 23:02:18 -07:00
James Zern
0e23c487da webpmux: fix loop_count range check 
explicitly check [0, 65535], the use of 'long' was removed in a prior
commit

Change-Id: I70d5bf286908459b5d4d619c657853f0e833b6ea
 2014-09-11 15:26:11 -07:00
Urvang Joshi
d51f3e4069 gif2webp: Handle frames with missing graphic control extension 
According to the GIF spec (http://www.w3.org/Graphics/GIF/spec-gif89a.txt),
this block is optional, and its scope is only the first graphic rendering block
that follows.

The spec doesn't mention what default values of frame dimensions, offsets,
duration and transparent index to use in such a case, though. So, we use the
defaults used by GIF reader in Chromium:
https://code.google.com/p/chromium/codesearch#chromium/src/third_party/WebKit/Source/platform/image-decoders/gif/GIFImageReader.h&l=186

Change-Id: Iecc6967847192483770e85ac15fe2835cd01ce7b
 2014-09-11 14:35:21 -07:00
James Zern
96d43a873a examples: warn on invalid numeric parameters 
add ExUtilGet[U]Int / ExUtilGetFloat which print an error message on
parse failure.
fixes issue #219.

Change-Id: Ie537f5aebd138925bf1a48289b6b5e261b3af2ca
 2014-09-11 11:18:28 -07:00
James Zern
a6140194ff ExUtilReadFromStdin: (windows) open stdin in bin mode 
fixes input/decode from stdin in the examples

Change-Id: Ie8052da758a9ef64477501b709408236d258da82
 2014-08-29 19:25:46 -07:00
James Zern
e80eab1fbc webpmux: (windows) open stdout in binary mode 
prevents corrupt output. related to issue #217

Change-Id: I6f0dac8131127717ba72b0709fb35d421ab41acb
 2014-08-29 19:25:45 -07:00
James Zern
e9bfb1166d cwebp: (windows) open stdout in binary mode 
prevents corrupt output. fixes issue #217

Change-Id: If90afb441636144300da66d64f0e7f78505b4060
 2014-08-29 19:11:41 -07:00
James Zern
5927e15bc7 example_util: add ExUtilSetBinaryMode 
use it in dwebp when dealing with 'stdout'

Change-Id: I8b8a0b0de9e73731e913ac3c83b5e2b33c693175
 2014-08-29 19:07:17 -07:00
skal
b5a36cc9ad add -near_lossless [0..100] experimental option 
This compresses the uimage using lossless compression and controlable
decimating pre-process.
Code is under WEBP_EXPERIMENTAL_FEATURE while it's being experimented with.

Change-Id: I8b7f4cfcc3c6afc52a556102842bdbb045ed5ee8
 2014-08-05 19:17:10 +02:00
James Zern
29a9fe222a libwebp 0.4.1 
- 7/24/14: version 0.4.1
   This is a binary compatible release.
   * AArch64 (arm64) & MIPS support/optimizations
   * NEON assembly additions:
     - ~25% faster lossy decode / encode (-m 4)
     - ~10% faster lossless decode
     - ~5-10% faster lossless encode (-m 3/4)
   * dwebp/vwebp can read from stdin
   * cwebp/gif2webp can write to stdout
   * cwebp can read webp files; useful if storing sources as webp lossless
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Merge tag 'v0.4.1'

libwebp 0.4.1
- 7/24/14: version 0.4.1
  This is a binary compatible release.
  * AArch64 (arm64) & MIPS support/optimizations
  * NEON assembly additions:
    - ~25% faster lossy decode / encode (-m 4)
    - ~10% faster lossless decode
    - ~5-10% faster lossless encode (-m 3/4)
  * dwebp/vwebp can read from stdin
  * cwebp/gif2webp can write to stdout
  * cwebp can read webp files; useful if storing sources as webp lossless

* tag 'v0.4.1':
  update ChangeLog
  iosbuild.sh: specify optimization flags
  update ChangeLog
  makefile.unix: add vwebp.1 to the dist target
  update ChangeLog
  gif2webp: dust up the help message
  remove -noalphadither option from README/vwebp.1
  update NEWS for the next release
  update AUTHORS
  bump version to 0.4.1
  restore mux API compatibility
  remove the !WEBP_REFERENCE_IMPLEMENTATION tweak in Put8x8uv
  restore encode API compatibility
  restore decode API compatibility
  gif2webp: fix compile with giflib 5.1.0
  gif2webp: simplify giflib version checking

Change-Id: Icf599f29bc6c0db757bc133aaddb3dbbbc316e08
 2014-07-29 18:06:58 -07:00
Vikas Arora
e09e9ff6e5 Record & log the image pre-processing time. 
Change-Id: If0ecec3046e87fe0021446a98f3e94c7e0576bb8
 2014-07-28 16:05:42 -07:00
James Zern
2def1fe635 gif2webp: dust up the help message 
* try to avoid trailing '.'
* rationalize capitalization

missed in:
0a8b886 dust up the help message

Change-Id: I6f80736cc8a2ff4f185f63d463a57d5bbf88a0db
 2014-07-23 20:03:49 -07:00
James Zern
fb668d78b3 remove -noalphadither option from README/vwebp.1 
+ vwebp's -help output

this is a future option; missed in:
793368e restore decode API compatibility

Change-Id: If920df2cf8de57ebad93a6b98830562149396d8d
 2014-07-23 19:54:34 -07:00
James Zern
862d296cf9 restore mux API compatibility 
protect WebPMuxSetCanvasSize w/a WEBP_MUX_ABI_VERSION check

Change-Id: I6b01af55ebb4cc4c860d3cbf43be722077896748
 2014-07-23 16:13:56 -07:00
James Zern
d713a69644 Merge changes If4debc15,I437a5d5f into 0.4.1 
* changes:
  restore encode API compatibility
  restore decode API compatibility
 2014-07-23 13:56:27 -07:00
James Zern
c2fc52e4ec restore encode API compatibility 
protect WebPConfigLosslessPreset/WebPMemoryWriterClear w/a
WEBP_ENCODER_ABI_VERSION check

Change-Id: If4debc15fee172a3f18079bc2bd29eb8447bc14b
 2014-07-22 22:19:55 -07:00
James Zern
793368e8c6 restore decode API compatibility 
protect flip/alpha_dither w/a WEBP_DECODER_ABI_VERSION check

Change-Id: I437a5d5f78800f71b7e7e323faa321f946bf9515
 2014-07-22 20:03:52 -07:00
James Zern
b8984f3151 gif2webp: fix compile with giflib 5.1.0 
DGifCloseFile() added an error code output parameter
http://giflib.sourceforge.net/gif_lib.html#compatibility

fixes issue #209

original patch by grizzly dot nyo at gmail

Change-Id: I5554de2bd70dbfd95fd356424ad5fb800ac94592
 2014-07-22 17:50:30 -07:00
James Zern
222f9b1a9d gif2webp: simplify giflib version checking 
introduce LOCAL_GIF_PREREQ/VERSION similar to the GCC variants in dsp.

Change-Id: I00ba5d523047b3b1c14ade992172e75e69043eb3
 2014-07-22 17:41:55 -07:00
skal
4595b62b7c Merge "use explicit size of kErrorMessages[] arrays" 2014-07-21 13:37:49 -07:00
skal
fbda2f499c JPEG decoder: delay conversion to YUV to WebPEncode() call 
We store the raw RGB samples decoded from JPEG, and avoid precision loss.

Note that this may increase the encoding time reported by
cwebp -v, since RGB->YUV now occur during WebPEncode call
(in case of lossy), instead of ReadJPEG().
This also increases the memory use, since we're carying the
source ARGB samples around.

Change-Id: Ic2180206cfc9f5574f391e91c3b89b9d81695d01
 2014-07-21 22:26:22 +02:00
skal
0b747b1b39 use explicit size of kErrorMessages[] arrays 
Change-Id: If02864e3a07ae37814bf379bf347862cd2871bf4
 2014-07-21 13:21:56 -07:00
Pascal Massimino
257adfb0be remove experimental YUV444 YUV422 and YUV400 code 
(never used)

Change-Id: I12a886703592133939607df05132e9b498f916c1
 2014-07-03 22:26:25 -07:00
James Zern
380cca4f2c configure.ac: add AC_C_BIGENDIAN 
this defines WORDS_BIGENDIAN, replacing uses of
__BIG_ENDIAN__/__BYTE_ORDER__ with it

+ fixes lossless BGRA output with big-endian toolchains
  that do not define __BIG_ENDIAN__ (codesourcery mips gcc)

Change-Id: Ieaccd623292d235343b5e34b7a720fc251c432d7
 2014-07-03 18:15:50 -07:00
Pascal Massimino
9d5629025c make alpha-detection loop in IsKeyFrame() in good x/y order 
Change-Id: Ifeeb855e66c7b6b849e8584787dc24e7371b1e67
 2014-07-02 21:03:35 -07:00
skal
4536e7c49c add WebPMuxSetCanvasSize() to the mux API 
previously, the final canvas size was adjusted tightly from the
animation frames. Now, it can be specified separately (to be larger, in particular).

calling WebPMuxSetCanvasSize(mux, 0, 0) triggers the 'adjust tightly' behaviour.
This can be useful after calling WebPMuxCreate() if further image addition
is expected.

-> Fixed gif2webp accordingly.

also: made WebPMuxAssemble() more robust by systematically zero-ing WebPData.

Change-Id: Ib4f7eac372cf9dbf6e25cd686a77960e386a0b7f
 2014-06-30 07:00:49 +02:00
skal
1b6a263566 Merge "Fix handling of weird GIF with canvas dimension 0x0" 2014-06-25 02:14:54 -07:00
skal
1582e402fd Fix handling of weird GIF with canvas dimension 0x0 
Similarly to Chrome, we then use the first sub-rectangle
to set the canvas size.

Also: add check for too-large GIF dimensions (>MAX_CANVAS_SIZE)

Change-Id: Idce55f1e6f6982a8f0e082aac540e16b530e023e
 2014-06-24 17:40:40 +02:00
skal
db8b8b5fc2 Fix logic in the GIF LOOP-detection parsing 
We align with Blink/Chromium code by:
  - checking for ANIMEXTS1.0 signature too
  - using ByteCount >= 3 instead of requiring ByteCount==3

Change-Id: Idc484ca62878517df3dccb1fdb3bb45104a5e066
see: http://odur.let.rug.nl/kleiweg/gif/netscape.html
 2014-06-23 23:26:36 +02:00
James Zern
c6af999168 Merge "dust up the help message" 2014-06-19 23:12:02 -07:00
skal
0a8b8863cc dust up the help message 
* try to avoid trailing '.'
* rationalize capitalization

Change-Id: I50939baf01b1ab44d3031eee916ba51f2338af8a
 2014-06-20 07:13:11 +02:00
James Zern
2bc0dc3edc Merge "webpmux: warn when odd frame offsets are used" 2014-06-18 12:18:09 -07:00
James Zern
3114ebe46c Merge changes Id8edd3c1,Id418eb96,Ide05e3be 
* changes:
  examples/Android.mk: add cwebp
  Android.mk: move dwebp to examples/Android.mk
  Android.mk: add ENABLE_SHARED flag
 2014-06-18 12:17:15 -07:00
James Zern
c072663493 webpmux: warn when odd frame offsets are used 
offsets are stored as (x/2, y/2)

Change-Id: Ic8f727ab7996a84c1f8c57f4f6dbaf8701bf8eae
 2014-06-18 10:47:23 -07:00
James Zern
d51467841e examples/Android.mk: add cwebp 
Change-Id: Id8edd3c17d82e4ab0087c315cd3ead1cb285e714
 2014-06-17 23:41:12 -07:00
James Zern
ca0fa7c7a5 Android.mk: move dwebp to examples/Android.mk 
this depends on the top-level Android.mk for shared flags

Change-Id: Id418eb9639e839518a921ffcb6a376ce10aafbd2
 2014-06-17 23:41:01 -07:00
skal
bbe32df1e3 add alpha dithering for lossy 
new options:
 dwebp -alpha_dither
 vwebp -noalphadither

When the source was marked as quantized, we use a threshold-averaging
filter to smooth the decoded alpha plane.
Note: this option forces the decoding of alpha data in one pass, and
might slow the decoding a bit.

The new field in WebPDecoderOptions struct is 'alpha_dithering_strength'
(0 by default, means: off). Max strength value is '100'.

Change-Id: I218e21af96360d4781587fede95f8ea4e2b7287a
 2014-06-14 00:06:16 +02:00
Pascal Massimino
d6cd6358ff Merge "fix orig_rect==NULL case" 2014-06-12 00:48:30 -07:00
Pascal Massimino
2bfd1ffaba fix orig_rect==NULL case 
Change-Id: I3bb4fbebf59cba2a67681e74530fc0fe51f1958f
 2014-06-12 00:26:33 -07:00
James Zern
059e21c195 Merge "configure: move config.h to src/webp/config.h" 2014-06-11 22:52:07 -07:00
skal
f05fe006c2 properly report back encoding error code in WebPFrameCacheAddFrame() 
User-hook can fail but error was not propagated back.

Change-Id: Ic79f9543bf767634a127eccfef90af855ff15c34
Also: some ad-hoc clean-up and API dusting. More to come later...
 2014-06-11 23:26:47 +02:00
James Zern
32b3137936 configure: move config.h to src/webp/config.h 
this change has the side-effect of using directory names in the
include, silencing a lint warning.

Change-Id: Ib91cf63a90534e32fadfa5c2372bfdb29f854d02
 2014-06-10 23:42:00 -07:00
skal
385e334019 real fix for longjmp warning 
the 'volatile' qualifier was at the wrong place

Patch by Paul Pluzhnikov

Change-Id: I26e6f311a0ccd145de640b3505fe92965389c1d9
 2014-06-04 11:02:42 +02:00
skal
ac591cf22e fix for gcc-4.9 warnings about longjmp + local variables 
Needed to add 'volatile' and some casts.
Relevant excerpt from the 'man longjmp':

===============
The values of automatic variables are unspecified after a call to longjmp() if they meet all the following criteria:
  ·  they are local to the function that made the corresponding setjmp(3) call;
  ·  their values are changed between the calls to setjmp(3) and longjmp(); and
  ·  they are not declared as volatile.
===============

Change-Id: Ic72dc92669513a820369ca52a038afa9ec88091f
 2014-05-30 10:19:10 -07:00
James Zern
4c398699ef Merge "cwebp: fallback to native webp decode in WIC builds" 2014-05-28 15:03:34 -07:00
James Zern
7d039fc32d cwebp: fallback to native webp decode in WIC builds 
this gives precedence to WIC, but attempts to decode the file as WebP if
it fails

Change-Id: I3d894f39a26aea88897a8ebd345139b82f74f312
 2014-05-27 16:28:37 -07:00
James Zern
d471f424da cwebp: add some missing newlines in longhelp output 
+ update README

Change-Id: Ia84d8857d575bc29ab3ce9c0f10264c042067e78
 2014-05-27 16:28:02 -07:00
skal
dc5b122f23 try to remove the spurious warning for static analysis 
Change-Id: Ib81f16c70a0bfad05021401c1cf6788c974b63bd
 2014-05-26 18:31:00 +02:00
Pascal Massimino
f1e771735a remove all unused layer code 
Change-Id: I220590162b24c70f404fe3087f19dd3e6cac3608
 2014-05-08 22:37:38 -07:00