Improves the rd modeling function and implements them using interpolation
from a table which is a little faster. Also uses sse as input to the
modeling function rather than var - since there is no dc prediction
used and as a result the sse works a little better.

derfraw300: +0.05%
Speedup: ~1%

Change-Id: I151353c6451e0e8fe3ae18ab9842f8f67e5151ff

adds a new speed feature to force partitioning to be greater than
or less than a certain size

Change-Id: I8c048eeeef93700ae822eccf98f8751a45b2e7d0

this feature lets you set a partitioning size to be used by the entire
frame.

Change-Id: I208a4c8c701375cbb054418266f677768b6f8f06

This uses variance to split partition. Variance is calculated using
nearest mv,  always from last ref frame.

Change-Id: Idd015b4a9aa3bc82591759eac239680c07496896

Change-Id: Ie24489a4d39f3e53e816eeebf75a1c9c7d94515a

Change-Id: Ideee45cad8b38087c509cd404484728e85d0c427

This uses the speed feature functionality for code.

Change-Id: I9cd16c0c5f98520ae27ebba81aa2c178546587f8

force us to go through slow partitioning for keyframes, altref and
overlays.

Change-Id: I1a286361bf74083e71973575a7296be46eb98742

need to rework these

Change-Id: I17dc2c88d2faadd2f8fb117c52c25f04ea2e9856

Change-Id: I26e80ede80cb4389378a95afa95d229092a9859a

Optimized the quantization function by making it a two-pass
process. The first pass does a quick checking of the transform
coefficients against the base ZBIN, and only keep the good
enough set of coefficients for quantization. A skipping
check is added. If all coefficients are within the base ZBIN, no
quantization is needed. The second pass is the actual quantization
pass, which only processes the coefficient subset determined
in first pass. This reduces the computation. Furthermore, an
alternitive method is used for large transform size, which often
has sparse nonzero quantized coefficients.

Overall, the encoder speedup is about 4%. The quantization function
itself gets 20% faster.

Change-Id: I3a9dd0da6db030260b6d9c314a9fa48ecae89f22

Change-Id: Ic924f07c6ab0c929c6cdf11880d3c625806e272c

Change-Id: I183a38997a9d01e4a1b869e92509f6915216fa09

This commit makes use of dual fdct32x32 versions for rate-distortion
optimization loop and encoding process, respectively. The one for
rd loop requires only 16 bits precision for intermediate steps.
The original fdct32x32 that allows higher intermediate precision (18
bits) was retained for the encoding process only.

This allows speed-up for fdct32x32 in the rd loop. No performance
loss observed.

Change-Id: I3237770e39a8f87ed17ae5513c87228533397cc3

This seems to only be used in the encoder. Also remove an empty wrapper
file that contained forward declarations for this function, but didn't
actually define any actual functions.

Change-Id: Ifc561eef7ebe374a7d03698055e51e105f6d614b

Moving single function from vp9_invtrans.c to vp9_encodemb.c.

Change-Id: I26bf6bb90de342a3036c0dbfba78a7dd75a61fe7

2.5% faster when encoding first 50 frames of bus @ 1500kbps.

Change-Id: I5a64703996cf7fd39b07e32c72311c4b125ec6d4

Change-Id: I5d3944051d091b4bf3eb13e2a30132d34203ef74

All elements of this table are equal to 252, so replace it with a
single constant VP9_COEF_UPDATE_PROB.

Change-Id: I1e2d1d284326ce6df9899a740c2fc344b3ec81c9

The encoding time for bus at CIF goes from 661s to 625s. This commit
also enabled unit test of sad8x4/4x8 in sad_test.cc.

Change-Id: If3d10ebb56bda584bdb69bcf056599d580b12cb1

No bitstream or output change - only cosmetics.

Change-Id: Ic8c1d7ad010a87dcf27d12a38cd7dd5adba683a7

The encoding time for bus at CIF goes from 661s to 625s. This commit
also enabled unit test of sad8x4/4x8 in sad_test.cc.

Change-Id: If3d10ebb56bda584bdb69bcf056599d580b12cb1

Encoding time of crew (CIF, first 50 frames) @ 1500kbps goes from 4min56
to 4min42.

Change-Id: I92c0c8b32980d2ae7c6dafc8b883a2c7fcd14a9f

Change-Id: I57be4eeaea6e4402f6a0cc04f5c6b7a5d9aedf9b

The encode-side scaling was not indexing through the image correctly
for the chroma planes, causing a green checkerboard-like output in
the unit test.

Change-Id: I9abbd73615404cd6699588be3e64dcf59005bc14

Removes the case of coding prob = 0 for forward updates, since that
is not an allowed probability to code.
Slightly improves efficiency but may not matter in practice.

Change-Id: I3b4caf82e8f0891992f0706d4089cc5a27568dba

This commit enables proper partition type search for the bottom-
right corner blocks.

Change-Id: Id1123d0e4e81eba648ed4f3c0c7ab587e174f650

Avoids divide-by-zero when variance is 0.

Change-Id: I3c7f526979046ff7d17714ce960fe81d6e1442a0

* New probs for subpel filters/tx_count
* Makes a change to not reset to defaults for the tx_size
probs if an intermediate frame reverts to using a fixed tx_size.
* A few updates to the parameters for backward adaptation for mode/mv
* some cosmetic cleanups

derf300: +0.06%

Change-Id: I22994d659bc31ca7a4fc8820fde24001e64a2920

This is consistent with uncompressed header encoding.

Change-Id: Iccf40a44b493ed36ee085b81ed56f7952cde70a9

Remove the bilinear filter mode, and the no-loopfilter mode, and the
related vp9_setup_version() function.

Change-Id: I32311367812faf37863131df3af37d63d03973d7

Implements ability to signal and decode frames that are
encoded using only intra coding modes. Only the decode
side has been implemented here.

Change-Id: I53ac6a8d90422cd08ba389e5236e15b45f9e93de

Change the argument of get_uv_tx_size() to be an MBMI pointer, so that the
correct column's MBMI can be passed to the function.

Change-Id: Ied6b8ec33b77cdd353119e8fd2d157811815fc98

Do not allow the rd code to check compound modes if
a segment level reference frame is selected.

Change-Id: I95f0c57789e0eaceed7caf227e94b4ba3130a06c

Change-Id: Ib5a95bb6ab643b276df3faa9bf99595e4a69ff18

Change-Id: I3baf93c2fa5c2f7f45c6bc5514d317040975da71

Fixed point scaling factors are calculated once for each
reference frame by using integer division. Otherwise fixed point
scaling routines are used in all scaling calculations. This makes it
possible to calculate fixed point scaling factors on device driver
software and pass them to hardware and thus avoid division on hardware.

TODO:
 - Missing check for maximum frame dimensions
   (currently scaling uses 14 bits)
 - Missing check for maximum scaling ratio
   (upscaling 16:1, downscaling 2:1)

Problems:
 - Straightforward fixed point implementation can cause error +-1
   compared to integer division (i.e. in x_step_q4). Should only
   be an issue for frames larger than 16k.

Change-Id: I3cf4dabd610a4dc18da3bdb31ae244ebaf5d579c

Change-Id: Iec41736c2b6140715f90f40de5ae6cf52497a9b8

Reduces TX_SIZE contexts to 2 for each kind. The code is
cleaner and there is hardly any performance difference with
more than two contexts.

Results: almost neutral

Change-Id: I17656bd6db76224ae2856adf882504560e7dbaa4

This commit enables boundary blocks properly tested over allowable
partition types.

Change-Id: I405a9a46ddcfa0c7af2b63e3644cabfa3b6a951d