The assumption doesn't hold true in the current codebase. Remove
this speed feature to simplify the codebase.
Change-Id: I9b69f484c9b7cd612b825047cc5b2fce63ee0af7
The inter prediction residual can undergo different transform types
during the rate-distortion optimization search. The assumption used
in this speed feature no longer holds true. This commit removes the
related code to clean up the codebase and clear out unit test
failure in higher speed setting.
Change-Id: I7f7cd4df2345ed3e607c9fae75b38cd2dbde0cac
This commit re-works the transform type speed feature. It moves
the transform type selection outside of the coding mode loop. This
avoids repeated motion search if the best prediction mode is
chosen as NEWMV. It improves the speed performance for clips that
contain more motion activities.
For mobile_cif at 1000 kbps, this makes the baseline encoding 7%
faster and makes the encoding with dynamic motion vector referencing
scheme enabled 10% faster.
Change-Id: I93e2714b3e461303372c4b66a4134ee212faffd1
The transform can only be skipped if both Y and U/V can be skipped, so
we always include the cost of tx size in the rate for Y. This will
get later subtracted if the transform is actually skipped.
Change-Id: I136a223e5596f18b69bb9f743e7e08438183a215
We used to cache the cost of the UV mode from the search with a
different previously tried Y mode, but the UV mode is contexted
on the Y mode, so caching the cost is inaccurate.
Change-Id: Ib003510afb6fc9befb7808b67b0be64f1c0a0804
This patch factors in the different partition coding syntax used for
right and bottom edge blocks when doing RD search.
Change-Id: I2f31650512b6a4a7a2c03352414693aff6fbf87b
This is purely a refactoring patch and has no functional effect.
Uses of these masks can be arranged such that all input blocks are
contiguous in memory (stride == block width). In this case 1D versions
of operations can be used. 1D vector operations have superior performance
over 2D block equivalents as they are more processor cache friendly and
they can do away with a second loop overhead.
Change-Id: I2b76c9888aea2c857cc497e8a4b2841fd3dad54e
Use the same rounding method that is used throughout the codebase,
where the halfway value is rounded up rather than down.
Change-Id: I04e92850bc69a7d7a07b06e3d2ce97f6f2ada321
Seperate prediction mode and tx type search for inter
modes. Enabled for speed >=1.
baseline:
speed increase 40%
compression drop 0.30%/0.29% on lowres/midres
ext-tx:
speed increase 160%
compression drop 1.08%/0.95% on lowres/midres
Change-Id: Ieb34b1ee80df6980d16e26a5783e08cc0deae55b
Add a speed feature to seperate prediction mode and tx type search
for intra modes: search for best intra prediction mode with fixed
default tx type first, then choose the best tx type for the
selected mode.
Coding performance drop:
baseline
lowres 0.10% midres 0.08% hdres 0.14%
with ext-tx
lowres 0.14% midres 0.25% hdres 0.20%
Speed improvement is 20% for baseline and 17% for ext-tx.
It is turned on for speed >= 1.
Change-Id: Ia5e8d39e8a4e2e42c521bfde938f8b6a98ab24f9
This is for the bidir-pred experiment. Previously the length of the
bi-predictive frame group interval is fixed at 2, i.e. one
bi-predictive frame may be inserted every other frame. This patch
makes the length adjustable, i.e. any positive number may be
specified, but the use of the backward ref will be turned off if the
bi-predictive frame group interval is larger than the golden frame
group.
Further, an additional rate factor level has been added:
INTER_LOW
, which applies to LAST_BIPRED_UPDATE frames that are not used as
references.
Change-Id: I5514d34a64dd486bbb5756c2d0612946f598a789
input_, ref_input_ and output_ were being allocated with new[] followed
by vpx_memalign, remove the former
Change-Id: Ia16d0f9b9317042a24445095ad3c284f4e7bb481
Major parts have been implemented as follows:
(1) Added BRF_UPDATE, LASTNRF_UPDATE, and NRF_UPDATE in firstpass.c;
(2) Added the handling for the scenario of
"cpi->common.show_existing_frame == 1" at the encoder;
(3) Added a new reference frame of BWDREF_FRAME;
(4) Have bwd-ref work with upsampled references.
Note that when the experiment of "ext_refs" turned on, this experiment
will be turned off automatically currently.
RD performance in Overall PSNR has been improved, compared against the
VP10 baseline:
lowres: Avg -3.312; BDRate -3.154
derflr: Avg -1.927; BDRate -1.176
midres: Avg -2.149; BDRate -2.001
hdres : Avg -0.567; BDRate -0.588
Change-Id: I4c06ff51cc20194bffbd4d2346e57ba3dcf6b62c
