This makes it possible to use --rt --cpu-used=8.

Change-Id: I8b5bc4449b6e05d24d25145e35b4793501268c59

This commit further simplifies the SSSE3 implementation of the fast
path quantization process.

Change-Id: I5be3286ec0f1bd81d1cf5be3168fece6384fb9ca

Change-Id: Id6eedc502c86433df1456dd994aee6bc9a1359a2

* Replace max_step_search_steps with constant MAX_MVSEARCH_STEPS
* Fold (reduce_first_step_size + speed > 5) into reduce_first_step_size
  replacing uses of reduce_first_step_size that don't add the speed
  check with zero.

Change-Id: Iae46395dbf3eaca138bf4d18b838a9e364b5a198

The y4m extension used is the same as the one used in ffmpeg/x264.
The patch is adapted from the highbitdepth branch.

Also adds unit tests for y4m header parsing and md5 check
of the raw frame data, as well as y4m writing.

[build fix for Mac/VS by not using tuples with strings]

Change-Id: I40897ee37d289e4b6cea6fedc67047d692b8cb46

Reverting "Adds support for reading and writing 10/12-bit y4m" for now because of Mac Build Failure.

This reverts commit 82dc1332

Change-Id: I824bf42bf47c7df6985c79e451d6af913030d374

Change-Id: I39a37335ba5b3a969d328afb1f425ddb2cf7ddda

vp9_rdopt is for making rd optimal mode decisions. vp9_rd is for all
other rd related routines. Anything used outside of making an rd optimal
decision belongs in rd.

Change-Id: I772a3073f7588bdf139f551fb9810b6864d8e64b

Change-Id: I262ecac02d376de83097bb40f744f5584e987603

Moved the threshold adjustment before reference flag checking,
which could set the threshold to INT_MAX for disabled reference
frame, and cause overflow if the adjustment is done after that.

Change-Id: I85e94f8726d5e3ae93f65965aa978721dddc9957

Renamed updating_running_avg() to filter(). Extended function with the rest of
the filter procedure. Made all of the empirically-determined constants used in
VP8 into functions so they can be tweaked more easily.

Change-Id: I41730c8c92370c76885950a43742347477ca4e7e

As in VP8.

Currently, this parameter is set with the VP8E_SET_NOISE_SENSITIVITY flag.
The flag was not renamed so that we don't break the interface for webrtc. This
should probably be changed at some point in the future.

Change-Id: Ic73fcb0dde9d1d019e9d042050b617333ac65472

Change-Id: Icbe05657f0e92c3838e6a5a975f4f82d21328a2e

Add test code to turn multi-arf on and off depending
on group length and zero motion.

Changes to active max group length for mult-arf.

Fund second arf only from normal frame bits.

Change-Id: I920287fac1c886428c15a39f731a25d07c2b796c

This commit added a speed feature to control the step_param used in
full pixel motion search. The intention is to reduced the search
steps for high speed real time coding.

Change-Id: I21d2f0105c2b647783a6688615da7fcf2b6d670b

Adapt the use of segmentation in AQ mode 2 based on
the ambient kf/arf/gf Q.

Disable segmentation where the rate per SB is very
low and overheads are likely to outweigh the benefits.

This patch reduces the -ve average metrics impact
of AQ mode 2 while allowing stronger 3 segment AQ
in some cases. Average improvement ~0.5-1.0%.

Change-Id: I5892dfcc7507c5cc6444531cc7fe17554cf8d0c7

The y4m extension used is the same as the one used in ffmpeg/x264.
The patch is adapted from the highbitdepth branch.

Also adds unit tests for y4m header parsing and md5 check
of the raw frame data, as well as y4m writing.

Change-Id: Ie2794daf6dbafd2f128464f9b9da520fc54c0dd6

This commit re-designs the quantization process for transform
coefficient blocks of size 4x4 to 16x16. It improves compression
performance for speed 7 by 3.85%. The SSSE3 version for the
new quantization process is included.

The average runtime of the 8x8 block quantization is reduced
from 285 cycles -> 255 cycles, i.e., over 10% faster.

Change-Id: I61278aa02efc70599b962d3314671db5b0446a50

Change-Id: I2fc4ecfc2dd3ff1dd241a68c9ed4c280291b41f2

Add a conditional compile flag for this feature. Also add a
switch to enable the encoder to use these statistics in the
second pass. Currently, the switch is turned off.

Change-Id: Ia1c858c35ec90e36f19f5cffe156b97ddaa04922

The current threshold is knid of low, and in many cases NEWMV
mode is checked but not picked as the best mode. This patch
added a speed feature to increase NEWMV threshold, so that
less partition mode checking goes to check NEWMV. This feature
is enabled for speed 6 and 7.

Rtc set borg tests showed:
1. Speed 6, overall psnr: -0.088%, ssim: -1.339%;
   Average speedup on rtc set is 11.1%.
2. Speed 7, overall psnr: -0.505%, ssim: -2.320%
   Average speedup on rtc set is 12.9%.

Change-Id: I953b849eeb6e0d5a1f13eacba30c14204472c5be

Change-Id: Id52a7869fd1f31bb060de170e3295da7435adb9e

Grayscale is conditionally compiled.

Change-Id: I482ab237560d0bae8d397fd9999e78d38104f2a1

Change-Id: I74fc5f1a7bab3128cdd49441b83ec3a25aee65ca

Fixed the signed/unsigned mismatch.

Change-Id: Id83d603b8f1745b71f4cf695a0751e55518b1316

pull the latest from WebP, which adds a worker interface abstraction
allowing an application to override init/reset/sync/launch/execute/end

this has the side effect of removing a harmless, but annoying, TSan
warning.

Original source:
 http://git.chromium.org/webm/libwebp.git
  100644 blob 08ad4e1fecba302bf1247645e84a7d2779956bc3 src/utils/thread.c
  100644 blob 7bd451b124ae3b81596abfbcc823e3cb129d3a38 src/utils/thread.h

Local modifications:
 - s/WebP/VP9/g
 - camelcase functions -> lower with _'s
 - associate '*' with the variable, not the type

Change-Id: I875ac5a74ed873cbcb19a3a100b5e0ca6fcd9aed

The caller should reset the state instead of letting worker
to reset.

This reverts commit 34b2ce15.

Change-Id: Idb546ea6386cffc44e98dee772900d21ab79710f

Encoder still uses SWITCHABLE as default via DEFAULT_INTERP_FILTER,
but does not override the default if it is not SWITCHABLE.

Change-Id: I3c0f6653bd228381a623a026c66599b0a87d01d5

Moved the encode_breakout_test out of vp9_pick_inter_mode().

Change-Id: I6966d0293ae5210a5a28b0e8debacb24d1c0d2d4

When the frame is intra coded only, the encoder takes the RD
coding flow. Hence the function set_mode_info is not practically
in use. This commit removes it and the associated conditional
branches.

Change-Id: I1e42659ceb55b771ba712d1cdecacb446aa6460d

This fixes the hang in VP9/InvalidFileTest.ReturnCode/3
due to worker->had_error has not been reset after getting
error.

Change-Id: Ia3608225094758a2bd88f6ae4dd9dfd93bbaad27

For real time speed 7, once encode breakout is on(i.e. encoding
setting --static-thresh=1), a proper encode breakout threshold
is set to speed up the encoder.

Set --static-thresh=1, RTC set borg test showed a slight overall
psnr loss of 0.162%, but ssim gain of 0.287%. The average speedup
on RTC set is 6%, and for some clips, the speedup can be 10+%.

Change-Id: Id522d9ce779ff7c699936d13d0c47083de4afb85

Before encoding a frame, calculate and store each 16x16 block's
variance of source difference between last and current frame.
Find partitioning threshold T for the frame from its variance
histogram, and then use T to make partition decisions.

Comparing with fixed 16x16 partitioning, rtc set test showed an
overall psnr gain of 3.242%, and ssim gain of 3.751%. The best
psnr gain is 8.653%.

The overall encoding speed didn't change much. It got faster for
some clips(for example, 12% speedup for vidyo1), and a little
slower for others.

Also, a minor modification was made in datarate unit test.

Change-Id: Ie290743aa3814e83607b93831b667a2a49d0932c

Change-Id: I38bb2801ad3f059d5e2eb6513eec92397c67abcd

Change-Id: Id51468f99f8970b8795ce2d254344f4b8d7817d0

Change-Id: I7f989d197444d166133ad91eb23ac1033109f58d

the buffer is only used in encoding and only when
CONFIG_INTERNAL_STATS or CONFIG_VP9_POSTPROC is enabled.
a future change should decouple this from the frame buffer allocation
and make it conditional based on runtime flags when the above config
options are enabled.
reduces decode heap usage by at least 12%

Change-Id: Id0b97620d4936afefa538d3aadf32106743d9caf

This reverts commit b3363561.

This causes a hang in:
VP9/InvalidFileTest.ReturnCode/3

the change to test/user_priv_test.cc remains with a minor update

Change-Id: I4a8a272ca37ea329b0f413f0b1cd827a238bd9fd

As a way to speed-up rtc encoding at speed 7.

Change-Id: Ie36a010392cf7b741dc130df21a4e733622a75b7

To experiment with different speed/quality compromises.

Change-Id: Ia9d4b85243554d620498a327da37c356e752b07f