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9 Commits

Author SHA1 Message Date
Pascal Massimino
8f9117a9f0 cosmetics: signature fixes 
Change-Id: Id0e1026d43c0a6928dd740c88117df638bfb6db6
 2012-05-23 12:45:05 -07:00
Pascal Massimino
39bf5d6497 use header-less lossless bitstream for alpha channel 
This saves ~26 bytes of headers.
* introduce new VP8LDecodeAlphaImageStream() for decoding
* use VP8LEncodeStream() for encoding
* refactor code a bit

still TODO: make the alpha-quality/enc-method user-configurable

Change-Id: I23e599bebe335cfb5868e746e076c3358ef12e71
 2012-05-23 08:01:44 -07:00
Vikas Arora
9fc64edc21 Disallow re-use of same transformation. 
Limit the overall number of transformations to 4 and disallow any
duplicate transform for decoding an image.

Change-Id: Ic4b0ecd553db96702e117fd073617237d95e45c0
 2012-05-23 17:04:57 +05:30
James Zern
532020f24a lossless: remove some size_t -> int conversions 
Sizes are given as ints in the documentation and used as such elsewhere.

Change-Id: I51ecd9e501cf9b4e3948aa0e947d2c9b5c85a30f
 2012-04-24 16:00:00 -07:00
Vikas Arora
231ec1fb6d Removing the indirection of meta-huffman tables. 
Now, the indexing refers directly to 5 huffman codes  that must be encoded separately.

Change-Id: I4deeb04de1997e6d20c376046d2053ec7ee918de
 2012-04-23 08:36:14 -07:00
James Zern
9b3d1f3a1b decode.h: use size_t consistently 
replaces mixed use of int/uint32_t for buffer sizes
further changes the API/ABI.

Change-Id: I91d70fd82ee3e1ac34b884b8ead9a114a9b1015a
 2012-04-19 14:31:31 -07:00
Pascal Massimino
fac0f12e1b rename BitReader to VP8LBitReader 
Change-Id: I192b76422e131a94fb58c2c4a5520a5dba807126
 2012-04-13 01:56:31 -07:00
Pascal Massimino
6f01b830e2 split the VP8 and VP8L decoding properly 
* each with their own decoder instances.
* Refactor the incremental buffer-update code a lot.
* remove br_offset_ for VP8LDecoder along the way
* make VP8GetHeaders() be used only for VP8, not VP8L bitstream
* remove VP8LInitDecoder()
* rename VP8LBitReaderResize() to VP8LBitReaderSetBuffer()
(cherry picked from commit 5529a2e6d47212a721ca4ab003215f97bd88ebb4)

Change-Id: I58f0b8abe1ef31c8b0e1a6175d2d86b863793ead
 2012-04-10 23:06:58 -07:00
James Zern
19f6398ed7 add dec/vp8l{i.h,.c} from experimental 
Pulled from 5529a2e^.
The history of this and related files is a bit entangled so rather
trying to split the changes and introduce some noise in master's history
we'll start with a fresh snapshot.
The file progression is still available in the experimental branch.

Change-Id: I490a49cb0084d556a29d7c5257c986ea695ce60c
 2012-04-10 23:05:14 -07:00