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2919 Commits

Author SHA1 Message Date
Urvang Joshi
b494ad5096 Mux: only allow adding frame/tiles at the end. 
Change-Id: I5d685628da8c8ac85144cee2e5808b30ec79fef9
 2012-06-22 11:18:18 -07:00
pascal massimino
2c341b0eed Merge "Added image characteristic hint for the codec." 2012-06-22 02:54:51 -07:00
Vikas Arora
d373076a53 Added image characteristic hint for the codec. 
This image type hint is used by codec to apply appropriate set of
transform filters to the image.

Change-Id: Ibb24e47ba14c40fa7f9f2c50ae86e03f2b29e9a6
 2012-06-22 14:03:46 +05:30
pascal massimino
2ed2adb5ba Merge "msvc: add intrinsic based BitsLog2Floor" 2012-06-22 00:13:47 -07:00
James Zern
e595e7c552 Merge "add demux.c to the makefiles" 2012-06-21 23:44:44 -07:00
James Zern
da47b5bda7 Merge "demux: add {Next,Prev}Chunk" 2012-06-21 23:43:03 -07:00
James Zern
e5f467420d add demux.c to the makefiles 
Change-Id: If98c0ea859c845261218196df35e905589f09e76
 2012-06-21 23:21:41 -07:00
James Zern
4708393c3b demux: add {Next,Prev}Chunk 
replaces WebPDemuxSetChunk(). makes this consistent with the Frame
interface.

Change-Id: Ia2b1b98cc290f35b41fd14ee35a2a17cecac7ba8
 2012-06-21 23:18:39 -07:00
James Zern
e8a0a821d2 demux: quiet msvc warnings 
min_size is safe to be a uint32_t so avoid the size_t -> uint32_t
conversion

Change-Id: Ib53fe58d313b55dfcf3bee35d0cad48f210d07bf
 2012-06-21 23:09:38 -07:00
Pascal Massimino
31b68fe639 cleanup WebPPicture struct and API 
* add a real proper pointer for holding memory chunk pointer
  (instead of using y and argb fields)
* polish the doc with details
* add a WebPPictureView() that extract a view from a picture
  without any copy (kind of a fast-crop).
* properly snap the top-left corner for Crop/View. Previously,
  the luma position was not snapped, and was off compared to the chroma.

Change-Id: I8a3620c7f5fc6f7d1f8dd89d9da167c91e237439
 2012-06-21 00:30:43 -07:00
Pascal Massimino
9144a18643 add overflow check before calling malloc() 
It's preferable to be over-strict and paranoid here.

Change-Id: Ia928b279b753fa8f836d17decb17a35e6dc441b3
 2012-06-20 23:58:43 -07:00
Pascal Massimino
81720c9139 consistency cosmetics 
Change-Id: Ie8e372ddcdd6e48527478f70bf716953ed18292a
 2012-06-20 23:56:11 -07:00
James Zern
7144308402 enc/vp8l.c: fix build 
broken since:
233a589 take picture->argb_stride into account for lossless coding

Change-Id: I9ecbbf65f3048be3077d28c3a20dfc0e1afa10be
 2012-06-20 14:44:39 -07:00
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
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
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
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
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
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
James Zern
fb4943bdf9 modify WebPParseHeaders to allow reuse by GetFeatures 
moves the implementation to ParseHeadersInternal. this also allows
decoding to start at a VP8X sub-chunk, e.g. 'ALPH'.

Change-Id: I06791f87d90f888de32746ecb02705e4b0ff227a
 2012-06-08 14:55:14 -07:00