Put check to avoid possible out of bounds when looping
over the blocks to estimate noise level.
No change in behavior.

Change-Id: I4b7b19b7edee0ae1c35b9dc0700b1bf9b304d7f5

Change-Id: Icfab58e880285d5af00985dc20db2174a67d1fe8

Introduced in: https://chromium-review.googlesource.com/#/c/323215/
For now exclude the computation of vp_compute_skin_block for highbitdepth.

Change-Id: I18107a862c17ba869438ec3616a787bf173736c4

Change-Id: Ic5af41db58a3daad4103175b4b4b9300675020c0

Change-Id: I6dbddf500fd4f64216774685700efea972165470

the lookahead buffer allocation is deferred to receipt of the first
frame to allow profile changes. if the encoder was flushed before
supplying any frames the encoder would crash trying to dereference the
NULL buffer. vp8 is unaffected.

fixes mozilla bug:
https://bugzilla.mozilla.org/show_bug.cgi?id=1237848

Change-Id: Icee4b64de760476eee0d33b568f0a1010335ff13

Set UV thresholds to 0 for encoder breakout if
block is detected as skin.

Change-Id: Iaaa30b5cc8bae4cf611f8ea8eba693b730e32a3f

Use multiple clusters instead of one and decrease
the distance thresholds.

Add a define to switch between models.
Default is set to existing (1 cluster) model.

Change-Id: I802cd9bb565437ae8983ef39453939f5d5073bb1

If a superblock contains alot of "skin" then force split
of 64x64 partition, and make some adjustments in mode selection.

This helps to reduce artifacts on moving face/skin areas at low bitrates.

Little/no change in metrics: avgPSNR/SSIM down by ~0.12%.
Small encoding time increase < 1%.

Change-Id: Ic57f52148c3716f391419fab0530d916e4c1d186

Change-Id: I32aacd014df6c927cf2893dc096cbe6ec7604b9b

For aqmode=3, golden period update is set based on period of cyclic refresh.
Put a limit on max golden period update, for now set to 40.
And fix comment.

Change-Id: Icb61dd87c796cce2a5f5f7331c6a129540994696

-.220 BDRATE derf: https://x20web.corp.google.com/~aconverse/results/cost256_derf.html
-.675 BDRATE hevcmr: https://x20web.corp.google.com/~aconverse/results/cost256_hevcmr.html

Change-Id: Ifb1646d8ce65ffe0eff9953a911b1b88735b335f

Change-Id: I336fe2006288214977b5ee854124ee7b5bba5796

This is only used with CONFIG_VP9_TEMPORAL_DENOISING

Change-Id: I61a1814d43d71235077a2426f7bfce141677a79a

Limit oscilation detection in the case where overshoot is very very
large.

This keeps the 9-bit cost patch from breaking the DownUp reisze test.
The patch pushed us to an 11% undershoot right before a scene cut
causing a 1200% overshoot. (Whereas before we were undershooting by
only 6% before overshooting by 1200%).

Change-Id: Id90ccfab8aba872ccadc45b73b3bb097b895677f

Change-Id: I0b8eff9e74e3446024482d011ec4fb28b19136d3

In inter mode search skip all modes except NEARESTMV and DC_PRED.

10% less encode latency for large frames using the chromium remoting_perftests.

+0.313% BDRATE on the screencast set at speed -6.

Change-Id: Ib97a39dd8bcdeab545509e0e02d78ce7033f8c63

These values are set in set_mi_row_col()

Change-Id: Ie44c9d2dcb79797a8473b5fc29394277a7117547

a wrong variable.

Change-Id: I9fa02621dbdc508a12ba1ef9c8f98dbeab68e958

Error only affected svc 1 pass mode, introduced in:
https://chromium-review.googlesource.com/#/c/319609/

Change-Id: Ifc078c82d38b742966a81baaf5ad532f7dbc13a4

Change-Id: I39d3a150de9a77967a4e25ca89d2eda51fd18d47

Add TODO to consider turning-off more smoothly.

Change-Id: Id6dd4c5c515f5b09c388af965eb27dbe24924362

Change-Id: I9649647cc5755c8411ddd56f92e7f96d421c2663

Repack TOKENEXTRA fields.

Speed impact within measurment margin of error.

Change-Id: I9a6d1dde1bb4a0766b02d0cb74c871ddde907cde

Changes to mode selection for 1 pass SVC mode:
use base layer motion vector, changes to intra-prediction.

Change-Id: I3e883aa04db521cfa026a0b12c9478ea35a344c9

Change-Id: Ifa607dd2bb366ce09fa16dfcad3cc45a2440c185

This is a pure-refactor in preparation to potentially raise the bit-cost
resolution.

Verified at good speed 0 and rt speed -6.

Change-Id: I5347e6e8c28a9ad9dd0aae1d76a3d0f3c2335bb9

More aggresive on avoiding denoising on skin.
May supplement this later by adding condtion onn consec_zeromv.

Change-Id: Ied92b332f9b24e821d2009f81d1565758588d9a5

Change-Id: I9c383d604dfd240e38b198ac5bf86ddd3456f442

Change-Id: I0c85b637e51dc949a4e919f10a78870f23c2ca6a

Different quality levels are used for different regions in
the frame depending on how far they are vertically from the
center. Specifically, three segments are used based on the
mi_row index with respect number to the number of mi_rows in
the frame.

Change-Id: Ifc8b777bc58ea8521dffc4640360c67d99f8d381

The decoder does not use this function.

Change-Id: Ie67f909c0f4108ef286789c70df867d4b960a780

Change-Id: Ib275bfc4c29c572d6c70e5ec6dbfc241590d3e3e

Prior to this patch, read_inter_block_mode_info() would
find the nearmv and nearestmv for all modes.  Now it does not
search for ZEROMV modes and breaks out early for NEARMV and
NEWMV modes.

Change-Id: Ifa7b1eaf58bb03b9c7792ea5012fef477527d0fd

This commit enables encoder to avoid 8x4 and 4x8 partitions for
scaled reference frames when libvpx is configured and built with
--enable-better-hw-compatibility

Change-Id: I02ad65c386f5855f4325d72570c49164ed52f413

Change-Id: I12de2dd5e5f375551804166188d76a9ad8067b41

Move the logic for forcing zero_mode after the
(ref_frame & flag_list) check.
This was causing an memory leak under msan:
https://bugs.chromium.org/p/webrtc/issues/detail?id=5402

Change-Id: Ie9d243369f8ed7c332f46178275945331da4fd85

Under --enable-better-hw-compabibility, this commit adds the asserts
that no mv clamping is applied for scaled references, so when built
with this configure option, decoder will assert if an input bitstream
triggger mv clamping for scaled reference frames.

Change-Id: I786e86a2bbbfb5bc2d2b706a31b0ffa8fe2eb0cb

This commit adds a new configure option:

--enable-better-hw-compatibility

The purpose of the configure option is to provide information on known
hardware decoder implementation bugs, so encoder implementers may
choose to implement their encoders in a way to avoid triggering these
decoder bugs.

The WebM team were made aware of that a number of hardware decoders
have trouble in handling the combination of scaled frame reference
frame and 8x4 or 4x8 partitions. This commit added asserts to vp9
decoder, so when built with above configure option, the decoder can
assert if an input bitstream triggers such decoder bug.

Change-Id: I386204cfa80ed16b50ebde57f886121ed76200bf

Add function to compute skin map for a given block, as its
used in several places (cyclic refresh, noise estimation, and denoising).

Change-Id: Ied622908df43b6927f7fafc6c019d1867f2a24eb