Change-Id: I3b05687f439ff6a7c426d2c97a6c58c831fa51ac

Stack the rate-distortion statistics in the sub8x8 rd loop. This allows
the encoder to skip the forward transform, quantization, and coeff cost
estimation, in the sub8x8 rd optimization search, if the motion
vector(s) are of integer pixel value, and have been tested in the
previous prediction filter type rd loops of the same block.

This gives about 2% speed-up for bus_cif at 2000 kpbs, for speed 0.
Its efficacy depends how frequently the motion search will select an
integer motion vector.

Change-Id: Iee15d4283ad4adea05522c1d40b198b127e6dd97

Mode search order in rd loop changed to better reflect
observed hit counts.

Also some adjustment of the baseline mode rd thresholds
to reflect the order change and observed frequencies.

Change-Id: I47a131cc83e11551df8add6d6d8d413d78d3a63c

This cl fixes issues rbultje brought up. that I somehow neglected when I
submitted yaowu's patch.

Change-Id: I07ad18796317822510b96e951c88d29f194a3c2e

When CONFIG_POSTPROC is set there was a now
invalid reference to cm->filter_level.

Changed to cpi->mb.e_mbd.lf.filter_level in line with
change Iaf5fb71c33719cdfa1b991f671caf071be9ea035

Change-Id: If746e60044903f7ba8d0d346225b3d015226c7d0

This commit allows the encoder to skip a few buffer update steps in
rd_pick_best_mbsegmentation, when early breakout has been triggered
in the rd_check_segment_txsize. It provides about 1% speed-up for
bus_cif at 2000 kbps, in the settings of speed 0.

Change-Id: Ica034f10a24dec572b397d8389a2b81020ebc0b9

At speed 2, due to the threshold scheme used, it is possible the rate
and distortion assigned with INT_MAX value. The patch added checking
to prevent the INT_MAX value is used in further calculation of RD
scores. The patch also changed the assertion in rd_use_partition() to
be mirror similar assertion in rd_pick_partition().

Change-Id: Idb52c543cc1e10abdf6e6a5d6e9cb535a42214dc

Using cm->frame_contexts[cm->frame_context_idx] as source of previous
probabilities.

Change-Id: Ie03778acf0e7bebdc3a1f6a51854d4a0712f24a1

Adding loopfilter struct with fields from MACROBLOCKD and VP9Common.
Eventually it will be moved to vp9_loopfilter.h for better code structure.

Change-Id: Iaf5fb71c33719cdfa1b991f671caf071be9ea035

Removed arrays: kf_boost_seperation_adjustment,
                gf_adjust_table,
                gf_intra_usage_adjustment,
                gf_interval_table.

Change-Id: I62e400cb6e4d039787615169a3779e31ebf95893

This patch modifies the auto_mv_step_size speed feature to
use a combination of the maximum magnitude mv from the last
inter frame, and the maximum magnitude mv for the two reference
mvs with the same reference. For arf frames, the max mav step
for the resolution is used.
The bounds therefore are slightly tighter. The feature is made
a speed 1 feature.

Rebased.

Results (when this feature is turned on over speed 0):
derfraw300: -0.046% psnr, about 5+% speedup
(tested on football: goes from 4m30.760s to 4m17.410s).

Change-Id: If492797a61b0b4b3e58c0b8f86afb880165fc9f6

Change-Id: Ia4e83913251c1cdc7aa2abd64bf01ecb1a962119

Moving TX_MODE enum to vp9_enums.h. Renaming txfm_mode variables to
tx_mode.

Change-Id: I459d1af6dd928ce7fccdf8ce30b6f1ca057bef92

Functions: vp9_get_pred_context_switchable_interp,
           vp9_get_pred_context_intra_inter,
           vp9_get_pred_context_single_ref_p1,
           vp9_get_pred_context_single_ref_p2.

Change-Id: I3d6fb8aee23c9062270768e1e6da416dd9bb8f96

Renaming vp9_sb_mv_ref_tree to vp9_inter_mode_tree, and
vp9_sb_mv_ref_encoding_array to vp9_inter_mode_encodings.

Change-Id: I0e91fbf81350d3ec5a2599064c74089b5d06133a

Change-Id: I4032dd0442043543954dcb3724df974b7cc7e515

We would skip the rectangular blocks for sub8x8 partitions because
we would conclude that PARTITION_NONE was better than PARTITION_SPLIT,
however, that conclusion was made before we actually really tested
PARTITION_SPLIT.

Change-Id: I8fa91e59894badc1d8cee3ba8a49e40ae4c4a489

Change-Id: Ide58a74d31ff948319445a6337d2c05e98720e34

Change-Id: I96b8058f6dfecf8aa3e152cdcbfd7e10071fbbc9

This prevents a duplicate memcpy of a 128-byte struct every time
set_scale_factors() is called (which is a lot), thus leading to a
decrease from 3.7 MB to 1.85 MB of struct copying per 64x64 block
RD/partition loop.

Overall, this decreases encoding time of the first 50 frames of bus
@ 1500kbps (speed 0) from 1min5.9 to 1min4.9, i.e. about a 1.5%
overall speedup. We can likely get more gains by removing the copy
of the other struct (and replacing it with an indexing) as well.

Change-Id: I3dceb7e79f71e6fe911b11cc994cf89a869dde7a

This means we only do UV intra mode selection if we find any intra
mode to actually be useful at all; in addition, we only do UV intra
mode selection for the transform sizes that were selected, rather
than all sizes available in this partition.

First 50 frames of bus @ 1500kbps (speed 0) gains about 5% with this
change.

Change-Id: I7b461eb8b803247f57896c5a9505f745b55502b3

The break statement only breaks out of the nested loop, not the
top-level loop, so it doesn't always work as intended. Changing it
to a return statement does what's intended.

Change-Id: I585419823b39a04ec8826b1c8a216099b1728ba7

The same information already exists in union b_mode_info.

Change-Id: Iac5086b99a3c3cc270380138062bb693e58f9e6d

these are only used in the encoder.
frames_since_golden / frames_till_alt_ref_frame -> VP[89]_COMP

Change-Id: Ie14a6f46987bced685ddb449b85dc261caba6dfe

Change-Id: Idfe2a850f72b38f519aea1aac1266d8c3aa813ee

This could happen during golden overlay frame coding from a previous
alt-ref frame if the special overlay code was triggered.

Change-Id: I3056d0c547cd26903b260ef93c94026e96bd9868

Change-Id: Id4f454831f3f11099f39c30246adeaa52857d08d

Make the use of mv_check_bounds consistent for mvs of both ref_frame[0]
and ref_frame[1].

Change-Id: I1ca24865cc7232ca9cbe5db566c53abad1592211

These arrays have constant values (no any updates). Removing two
corresponding memcpy calls. Making a little cleanup in vp9_entropymode.h
as well: removing redundant 'extern' keyword and moving all function
declarations at the end.

Change-Id: Ia16b38b46aec2e2500f5df29c40a297ae241dede

vp9_init_quantizer() is called in vp9_create_compressor(), and
should not be called in vp9_set_speed_features().

Change-Id: Ic2f1f4b0531b9d46bb841d7e1d8da9812207dad6

Encoding of first 50 frames of bus (speed 0) @ 1500kbps goes from
1min6.2 to 1min5.9, i.e. 0.5% faster overall.

Change-Id: I59d8a3b2f0a75010fa041d5e2646c8caac5bd683

Encode of first 50 frames of bus @ 1500kbps (speed 0) goes from
1min7.3 to 1min6.2, i.e. 1.7% faster overall.

Change-Id: I19d2deacfbffadd61d32551cee9586757ab4a987

Change-Id: Ic4c4b363ed840935e42f495f13ea5e601a56f1b2

Encode of first 50 frames of bus @ 1500kbps (speed 0) goes from 1min12.8
to 1min7.3, i.e. 8% faster.

Change-Id: Ia22d1c7b687316c553cc60eacae988b24e175b62

Added disable_splitmv feature at other speed levels. For speed 3 or
above, always turn it on.

Change-Id: Ibb36f0a7ef12a34b4f8d0f9cb6193eab43b34360

About 15% faster for bus (speed 0) first 50 frames @ 1500kbps, which
goes from 1min36 to 1min24. Results become slightly better (+0.2% on
derf/yt, +0.4% on hd), probably because of a bugfix for skipmode in
super_block_yrd(). Overall speed change (on derfraw300) is roughly
-13%. This can probably be improved further by caching best_yrd
between partition searches. Also, we might be able to get more
speedups by always doing PARTITION_NONE before PARTITIONS_SPLIT, not
just at the sb8x8 level.

Change-Id: I83736949ebd5b4a3b400ee688d7661913fefc98b

+0.2% SSIM and glbPSNR on derfraw300.

Change-Id: I9cba0bca55e606a22f557c7732b064f738efe84d

Current partition checking starts from small sizes, and then goes up
to large sizes. This experiment uses the small partitions' motion
estimation result, which is already available, to speed up the
large partition's motion estimation. We can decide to skip some
patition checkings if they are unlikely choices. We could use the
motion vector(MV) result as current partition's prediction MV, limit
the search range and reference frame.

Current result at speed 1:
psnr loss: 1.19% for stdhd, 0.287% for derf.
speed gain: 14% for sunflower(hd), 11% for akiyo.

Further improvement will be done later.

Change-Id: I5abfd070e9cace2e91e2a0247d1325df313887ab

Use an estimate based on DC_PRED for intra uv cost
within the rd loop then only do a full uv mode analysis
if an intra mode is chosen.

Significant speed gains in some cases. Currently only
enabled for speed 2 pending speed/quality tests.

Change-Id: Ie851a12400d5483bce47ec0e3ccb8516041e91c0

Apply limit if search_method == USE_LARGESTALL
to the range of UV tx sizes searched.

Change-Id: I6db29f0dd237285ffc50d75a37e8b68151ad821c