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Author SHA1 Message Date
pascal massimino
8de9a0847b Merge "Mux API change:" 2012-06-20 11:11:49 -07:00
Urvang Joshi
b74ed6e766 Mux API change: 
'Set' and 'Get' methods for images take/return a bitstream as input,
instead of separate 'image' and 'alpha' arguments.

Also,
- Make WebPDataCopy() a public API
- Use WebPData for storing data in WebPChunk.
- Fix a potential memleak.

Change-Id: I4bf5ee6b39971384cb124b5b43921c27e9aabf3e
 2012-06-20 11:00:42 -07:00
Pascal Massimino
233a589ea9 take picture->argb_stride into account for lossless coding 
analysis phase was assuming flat layout...

Change-Id: I96681f6d76aa3faabc51dd2ee3dffbe77ff90d36
 2012-06-20 10:13:04 -07:00
Lou Quillio
04e33f17de Edit for consistency, usage and grammar. 
Substantial edit, though less than 100% thorough.  This
makes changes that are clearly safe, but avoids others
where my domain knowledge is incomplete and accuracy
might be compromised.

modified:   doc/webp-lossless-bitstream-spec.txt

Change-Id: I89361a2e1157b8d2e44a8b4f4603f65833f0c1e6
 2012-06-20 10:08:53 -07:00
pascal massimino
a575b4bc15 Merge "cosmetics: add missing const" 2012-06-19 22:34:28 -07:00
pascal massimino
8d99b0f4bd Merge "cosmetics: remove unimplemented function proto" 2012-06-19 22:33:54 -07:00
James Zern
69d022176d cosmetics: add missing const 
Change-Id: I0c0e89bbe826961b02a40ada5a6f89e02abee378
 2012-06-19 22:28:34 -07:00
James Zern
5b08318b57 cosmetics: remove unimplemented function proto 
Change-Id: I580fcc756d161cebbabf753ee68c09d189628d7f
 2012-06-19 22:27:56 -07:00
Vikas Arora
b7fb0ed567 Log warning for unsupported options for lossless. 
Change-Id: I30d4e775959c7a4a8f5b649c8c90a4edb8cced47
 2012-06-20 10:51:50 +05:30
James Zern
e1f769fe1c msvc: add intrinsic based BitsLog2Floor 
Change-Id: Ic0c7d2f03e300c6699e130916a759403e672f9d8
 2012-06-19 16:14:54 -07:00
Vikas Arora
8a69c7d8af Bug-fix: Clamp backward dist to 1. 
Check for valid bounds on the 'dist' in backward reference case.
Clamp it to 1 in case of zero and negative values.

Change-Id: I78e956d4595955efa02b1f9628b475093f6ee001
 2012-06-19 16:44:03 +05:30
James Zern
b5b6ac979f Merge "Bring the special writer 'WebPMemoryWriter' to public API" 2012-06-18 16:22:17 -07:00
pascal massimino
a6a1909fff Merge "Fix floating point exception with cwebp -progress" 2012-06-18 16:11:53 -07:00
James Zern
f2cee06708 Fix floating point exception with cwebp -progress 
Adds a test of enc->mb_h_ to VP8IteratorProgress() to avoid a division
by zero. Fixes issue #121.

Original patch from even rouault (even dot rouault at gmail dot com).

Change-Id: Ie5fcc1821860c0a9366d5aa11f3aded4f5b98ed7
 2012-06-18 15:43:28 -07:00
Pascal Massimino
91b7a8c754 Bring the special writer 'WebPMemoryWriter' to public API 
=> WebPMemoryWriter, WebPMemoryWriterInit(), WebPMemoryWrite()

Change-Id: I142fb22b0290ece7a6f6d74f00964a2e9e58ec9b
 2012-06-18 15:42:56 -07:00
Pascal Massimino
310e297205 support resize and crop for RGBA input 
Change-Id: I19eac3fb4f8ecb973ff5872ac3a921f8947054bf
 2012-06-18 15:20:46 -07:00
James Zern
a89835d33a Merge changes Ice662960,Ie8d7aa90,I2d996d5e,I01c04772 
* changes:
  Manually number "chapters," as chapter numbers are used in the narrative.
  Re-wrap at <= 72 columns
  Apply inline emphasis and monospacing, per gdoc / PDF
  Incorporate gdoc changes through 2012-06-08
 2012-06-18 14:19:58 -07:00
pascal massimino
ce614c0caf Merge "dec/vp8: avoid setting decoder status twice" 2012-06-18 14:12:21 -07:00
James Zern
900285dac3 dec/vp8: avoid setting decoder status twice 
Has the potential of returning confusing USER_ABORT for bitstream errors
in some cases.

Change-Id: I358fdb0b36549179df6dc2a95c09a872bd35aa24
 2012-06-18 14:10:01 -07:00
pascal massimino
8227adc878 Merge changes I6f02b0d0,I5cbc9c0a,I9dd9d4ed,Id684d2a1 
* changes:
  Removed CodeRay syntax declarations ...
  Provide for code-block syntax highlighting.
  Replace high ASCII artifacts (curly quotes, etc.).
  Lossless WebP doc largely ported to markdown text.
 2012-06-18 13:55:21 -07:00
James Zern
dcda59c12d Merge "demux: rename SetTile to SelectTile" 2012-06-18 13:50:45 -07:00
James Zern
622ef12ea5 demux: rename SetTile to SelectTile 
Change-Id: I52b0b30578aeb77b71069f355c6b00901b948634
 2012-06-18 13:49:41 -07:00
pascal massimino
81ebd37505 Merge "demux: add {Next,Prev}Frame" 2012-06-18 13:41:42 -07:00
James Zern
02dd37a2a3 demux: add {Next,Prev}Frame 
Replaces WebPDemuxSetFrame().

Change-Id: I38cef0ebeabb5c2f164322502abe1780f7a65e06
 2012-06-18 13:37:16 -07:00
pascal massimino
4b79fa5923 Merge "Limit the maximum size of huffman Image to 16MB." 2012-06-17 00:20:26 -07:00
Lou Quillio
9aa34b3438 Manually number "chapters," as chapter numbers are used in the narrative. 
modified:   doc/webp-lossless-bitstream-spec.txt

Change-Id: Ice662960ff988a6ff577a8ca5a594e14ba69d4de
 2012-06-15 14:54:19 -07:00
Lou Quillio
2a4c6c29a0 Re-wrap at <= 72 columns 
modified:   doc/webp-lossless-bitstream-spec.txt

Change-Id: Ie8d7aa907dc20d941b74455f8657d4e1b4e23bbb
 2012-06-15 14:54:13 -07:00
Lou Quillio
a45adc1918 Apply inline emphasis and monospacing, per gdoc / PDF 
modified:   doc/webp-lossless-bitstream-spec.txt

Change-Id: I2d996d5e80967641e22997d4f6e7173b39df0978
 2012-06-15 14:54:06 -07:00
Lou Quillio
91011206ad Incorporate gdoc changes through 2012-06-08 
modified:   doc/webp-lossless-bitstream-spec.txt

Change-Id: I01c04772bff7e3d7d6f0b526949cd846b5a97c8d
 2012-06-15 14:53:55 -07:00
Lou Quillio
7a18248716 Removed CodeRay syntax declarations ... 
... as they became unnecessary when upstream (kramdown)
implemented LQ feature request:
17625c8082

Also updated (and simplified) syntax-highlighting instructions.

modified:   doc/README
modified:   doc/webp-lossless-bitstream-spec.txt
Change-Id: I6f02b0d0a69a4d1d96cb0f771936cbe9e2e6bbec
 2012-06-15 14:53:39 -07:00
Lou Quillio
b3ec18c556 Provide for code-block syntax highlighting. 
modified:   doc/README
modified:   doc/webp-lossless-bitstream-spec.txt

Change-Id: I5cbc9c0a4fbbcc049a4d792e1fac367d28acf4a6
 2012-06-15 14:53:29 -07:00
Lou Quillio
709d770241 Replace high ASCII artifacts (curly quotes, etc.). 
modified:   doc/webp-lossless-bitstream-spec.txt
Change-Id: I9dd9d4ed05c8f93d4cafadf8c99cc21c300a9299
 2012-06-15 14:53:16 -07:00
Lou Quillio
930e8abbda Lossless WebP doc largely ported to markdown text. 
Word-level formatting (italics, bold) remains to be done,
but awaits final author edits, to avoid rework.

modified:   doc/template.html
new file:   doc/webp-lossless-bitstream-spec.txt

Change-Id: Id684d2a10d02e197d660a960540fe83f87d317f2
 2012-06-15 14:52:57 -07:00
James Zern
18cae37b91 msvc: silence some build warnings 
these are related to the removal of USE_LOSSLESS_ENCODER

Change-Id: Ib0ca5bc2766c351130507bc2e657a034c8455b34
 2012-06-13 13:51:50 -07:00
Vikas Arora
b3923084b9 Limit the maximum size of huffman Image to 16MB. 
This limit corresponds to default histo_bits=3 for images upto sizes 400x400.
Any image higher than this dimension will bump up the histo_bits to 4 internally.

Change-Id: Ic8ba3dcd50e9c588cbbc4a0457289086498ff4ee
 2012-06-13 13:27:43 +05:30
pascal massimino
f180df2afd Merge "libwebp/demux: add Frame/Chunk iteration" 2012-06-13 00:29:29 -07:00
James Zern
2bbe1c9aa0 Merge "Enable lossless encoder code" 2012-06-13 00:28:42 -07:00
pascal massimino
d0601b0107 Merge changes I1d97a633,I81c59093 
* changes:
  libwebp/demux: add WebPDemuxGetI
  libwebp/demux: add extended format parsing
 2012-06-13 00:28:25 -07:00
Pascal Massimino
78f3e34504 Enable lossless encoder code 
Remove USE_LOSSLESS_ENCODER compile flag
Update Makefile.am and makefile.unix

Change-Id: If7080c4d8f37994c7c784730c5e547bb0a851455
 2012-06-13 00:26:58 -07:00
pascal massimino
d974a9cc15 Merge "libwebp/demux: add simple format parsing" 2012-06-13 00:03:37 -07:00
pascal massimino
26bf223280 Merge "libwebp: add WebPDemux stub functions" 2012-06-12 23:57:18 -07:00
James Zern
2f66668882 Merge "modify WebPParseHeaders to allow reuse by GetFeatures" 2012-06-12 23:51:55 -07:00
James Zern
b402b1fbb9 libwebp/demux: add Frame/Chunk iteration 
Change-Id: I2da68611b375de48391adcf446df31a93450c7d8
 2012-06-12 23:45:11 -07:00
James Zern
ad9ada3b9f libwebp/demux: add WebPDemuxGetI 
Enables queries for format flag, canvas width/height.

Change-Id: I1d97a633712141e42dfc86c95492eb6da5cefa01
 2012-06-12 23:45:10 -07:00
James Zern
2f2d4d5889 libwebp/demux: add extended format parsing 
Extends parser to support 'VP8X' and its components

Change-Id: I81c59093b02c7ad27810a7b0473129ea06f99952
 2012-06-12 23:45:08 -07:00
James Zern
962dcef6a8 libwebp/demux: add simple format parsing 
Adds image parsing / validation framework for 'VP8 '/'VP8L' files

Change-Id: I8b0a5d1f20d86ab137c881a01dba3275ea191aa4
 2012-06-12 23:45:06 -07:00
James Zern
f8f94081be libwebp: add WebPDemux stub functions 
beginning of a separate interface to demux webp files.

Change-Id: If8bf9c43defe5f6c8678afd03541f7cd8261c99a
 2012-06-12 23:45:02 -07:00
pascal massimino
fb47bb5cf4 Merge "NumNamedElements() should take an enum param." 2012-06-11 00:23:39 -07:00
Vikas Arora
7c6898051e Fix asserts in Palette and BackwardReference code. 
Fix inequality assertion on number of palette colors.
Fix inequality assertion test in BackwardReferencesHashChainFollowChosenPath.

Change-Id: Ie3242f1bbeaf96db91b839b6732ccce2634cebf3
 2012-06-11 12:27:59 +05:30
Urvang Joshi
fbdcb7ea38 NumNamedElements() should take an enum param. 
- Move TAG_ID to webp/mux.h
- Rename it to WebPChunkId
- Rename IDs to WEBP_CHUNK_<tag>
- Remove "name" param from ChunkInfo struct and related changes.
- Rename WebPMuxNumNamedElements to WebPMuxNumChunks().
- WebPMuxNumChunks() takes WebPChunkId as param.

Change-Id: Ic6546e4a9ab823b556cdbc600faa137076546a2b
 2012-06-11 12:26:13 +05:30