1. remove prediction mode conversion
2. unified bmode, same for key and non-key frame
3. set I4X4_PRED count for pdf to 0, as I4X4_PRED is no longer
coded ever. It is determined by ref_frame and block partition
Change-Id: If5b282957c24339b241acdb9f2afef85658fe47d
This commit removes the use of bmi_ in the first-pass encoding by
forcing encode_intra4x4block_ to use DC_PRED, followed by DCT_DCT
only, as John suggested. This makes the need for bmi buffer only
up to 4 entries, instead of 16.
Change-Id: I3410007dfae789ee46a09ae20c39d3ce3c7954aa
Hardware implementation needs to load coeff probs based on the
transform size. For selectable transform size, moving these bits
earlier in the bitstream adds some delay giving time to preload
the probs and speeds up the decoding process.
Change-Id: I3bfc1f662ae6f219c9286fe9ae6310c7d8a63ea7
Also do per-partition motion vector referencing in <sb8x8 partitions,
and adjust mvref finding for sub8x8 partitions.
Change-Id: Id3ed1ed4d2a8910d11d327db6cc63b8eb79f941f
This code does not seem to be necessary anymore.
For the 1080p clip used, the decoder performance improved by
~2%.
Change-Id: I66bb0496d4998b0d6c6637c746b642b77bdbef88
1) Added an initialization of rd_tx_select_threshs[].
2) Made updating transform size counts to be consistent
Change-Id: Iaa9d6c6be825b0364c9d61a9802873d01356815c
As intra coded blocks are always decoded using decode_sb_intra(), this
commmit removed the code no longer in use.
Change-Id: I09f14fa9cdc875656e8fbe245f72c8fd83b9e31e
The changing in intra coding to base on transform block, i.e. pred->
txfm->quant->dequant-itxfm->recon, made all blocks within a prediction
unit behave consistently, there is no longer a need to handle blocks
differently based on the position within a predicitn block. So this
commit simplifies the decision of transform type to be based on
prediction mode only.
Change-Id: If96cb72386f2e9186126ace88afa35ef085b6c96
This commit refactors the iterative motion search for compound
inter-inter mode, to make it support all partition types including
4x4/4x8/8x4 block sizes.
Change-Id: I5f1212b0f307377291763e45c6bdc9693b5f04c8
Move 4x4/4x8/8x4 partition coding out of experimental list.
This commit fixed the unit test failure issues. It also resolved
the merge conflicts between 4x4 block level partition and iterative
motion search for comp_inter_inter.
Change-Id: I898671f0631f5ddc4f5cc68d4c62ead7de9c5a58
Reverts to using 128 bit LUT for the coef models rather than 48
to ease hardware implementation.
Also incorporates some cleanups including removing various
hooks to support different lookup tables based on block_type and
ref_type.
Change-Id: I54100c120cca07a2ebd3a7776bc4630fa6a153f6
This commit changed the encoding and decoding of intra blocks to be
based on transform block. In each prediction block, the intra coding
iterates thorough each transform block based on raster scan order.
This commit also fixed a bug in D135 prediction code.
TODO next:
The RD mode/txfm_size selection should take this into account when
computing RD values.
Change-Id: I6d1be2faa4c4948a52e830b6a9a84a6b2b6850f6
This commit allows the rate-distortion optimization of intra coding
capable of supporting 8x4 and 4x8 partition settings.
It enables the entropy coding of intra modes in key frame using a
unified contextual probability model conditioned on its above/left
prediction modes.
Coding performance:
derf 0.464%
Change-Id: Ieed055084e11fcb64d5d5faeb0e706d30268ba18
The arm assembly files are named .s after conversion, to reuse
as much of the existing makefile infrastructure for conversion to
gas format as possible. Within the generated visual studio project,
only the converted assembly sources are available, which might not
be optimal for actually developing it, but is acceptable for
just building the library.
Multithreading is disabled since the traditional win32 threading
functions aren't available on WinRT/Windows Phone 8.
Building of vpx itself and the examples succeed, while building the
tests fail due to them using functions not available in the
windows store/windows phone API subsets - therefore the unit tests
are disabled.
This works for building in Visual Studio Express 2012 for Windows
Phone, while Visual Studio Express 2012 for Windows 8 (for
"Windows Store" apps) seems to reject the vcxproj files due to
not supporting "classic style native application or managed
projects". The built static library should be compatible with that
platform though.
Change-Id: Idcd7eca60bfaaaeb09392a9cd7a02e4a670e3b30
Previously, the microsoft arm assembler errored out, saying that
bilinear_taps_coeff was an undefined symbol.
Change-Id: Ib938f0b454c41ccbd801e70a7c9acc0fa04e3c55
The branch instructions are encoded as 16 bit instructions
by the microsoft assembler, while they are encoded as 32 bit
instructions by gnu binutils.
Change-Id: I622b9025df3520c08eef8447df078f5517fb4b67
The API is not final yet and can be changed. Actual layout of
uncompressed frame part will be finalized later. Right now moving
clr_type, error_resilient_mode, refresh_frame_context,
frame_parallel_decoding_mode from first compressed partition to
uncompressed frame part.
Change-Id: I3afc5d4ea92c5a114f4c3d88f96858cccc15b76e
* changes:
msvs: Don't link to winmm.lib
msvs: Pass dependency project vcxproj files to the project generation script
msvs: Support producing both vcproj and vcxproj depending on configure variables
configure: Add x86*-vs10/11 targets
gen_msvs_sln: Support producing versions 10 and 11, handle vcxproj files
Add a new script for producing vcxproj files
