* 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
import changes from experimental 5529a2e^
and enable build in autoconf and makefile.unix; windows will be treated
separately.
Change-Id: Ie2e177a99db63190b4cd647b3edee3b4e13719e9
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
Pulled from the parent of the current version (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: I6dae97fc381cd6c1d1640c4c565b2084a41ec955
Pulled from the current HEAD (218c32e).
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: I40538799dbf999abb9408ac83f55b897d8e22498
Pulled from the current HEAD (218c32e).
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: Ie57be21bf50ad83808c72aeb5fc706d9954d01d8
Pulled from the current HEAD (218c32e).
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: Id879be453a94d9f44ec8d47747823ca7297ae008
by packing the symbol map more efficiently.
This is mainly useful in making it harder to generate invalid bitstream:
before this change, one could code the same symbol twice. Now, it's
impossible, since we code the position using empty symbol slots, instead
of total position.
* Fix the HasOnlyLeftChild() naming while at it.
Change-Id: I63c56c80a4f04a86ac83eded1e3306329815b6c9
group like parameters together in prototypes, comments, move variable
declarations closer to first use.
Change-Id: Idd6bd87d0366d783fed83f4dd21bd7968cbe6948
_byteswap_ulong is defined in stdlib.h, release builds seem to pull it
in through a different path.
Change-Id: I510d2624150f89a4a77734bf3dc5b4db60a4ba95
- const / move declarations closer to first use
- remove unnecessary ()s
- don't return int unnecessarily with internal Init/Release
- compact some lines
Change-Id: If7ab505e417221debc356f21f075506939110a84
A call to Append/Update would index the parts_ array w/-1 as num_parts_
had yet to be set by DecodePartition0. This would cause corruption
within the VP8Decoder member.
Fixes issue #106.
Change-Id: Ib9f2811594ff19e948a66fda862a4e0a384bb9aa
If the first call to WebPIUpdate contained all of partition 0, but not
enough to decode a macroblock the test for max macro block size could
fail (4096 bytes) due to a memory buffer offset not being updated.
This change offsets the buffer in the same manner as Append().
Fixes issue #105.
Change-Id: I90ca3d0dde92eedc076933b8349d2d297f2469e8
- remove some unused functions
- move global arrays from data to read only section
- explicitly cast malloc returns; not specifically necessary, but helps
show intent
- miscellaneous formatting
Change-Id: Ib15fe5b37fe6c29c369ad928bdc3a7290cd13c84
As with the loop filter, implementing this with intrinsics is difficult
because we require subscript access for reading and writing 32 bits at a
time.
Approximately 5% decode speed improvement. This could be increased by
exposing TransformOne and rewriting TransformTwo to only handle dual
IDCTs.
Change-Id: Idd409264ab5d154a537107a1d54b419a48f7c1a8
Add a dirty_ flag to keep track of updated probabilities and the need to
recompute the level costs.
This only makes a difference for "-m 2" method which was sub-optimal.
But it's overall cleaner to have this flag.
Change-Id: I21c71201e1d07a923d97a3adf2fbbd7d67d35433
This proved being ok, even for large pictures, provided one
takes care of overflow. When an overflow is bound to occur, the
counters are renormalized.
Overall, shaves ~12k of memory.
Change-Id: I2ba21a407964fe1a34c352371cba15166e0c4548
