Currently, VP9 supports column-tile encoding, which allows a frame
to be encoded in multiple column tiles independently. The number of
column tiles are set by encoder option "--tile-columns". This
provides a way to encode a frame in parallel.
Based on previous set of patches, this patch implemented the tile-
based multi-threaded encoder. Each thread processes one or more
tiles.
Usage:
For HD clips:
--tile-columns=2 --threads=1/2/3/4
While using 4 threads, tests showed that the encoder achieved
2.3X - 2.5X speedup at good-quality speed 3, and 2X speedup at
realtime speed 5.
Change-Id: Ied987f8f2618b1283a8643ad255e88341733c9d4
Change 71789 renamed CONFIG_VP9_HIGH to CONFIG_VP9_HIGHBITDEPTH.
However, one use of CONFIG_VP9_HIGH was missed.
Change-Id: I0ebb9c71380c6d810a25708d15471abf9533e695
the gtest implementation used only returns values between 0 and 2^31-1
+ temporarily disable some tests in fdct8x8_test which misbehave with the
new range
Change-Id: I45381076f0bea3317cc6728305890e4fd2f2facd
Currently, the configure script checks for x32 by testing just the
__ILP32__ define. However, on "plain" i386, __ILP32__ can also be
defined, for example by clang 3.5.0 and higher. (That gcc does not
define it there, is another issue, but not for this tracker.)
Therefore, extend the check by also checking for __x86_64__, which will
also be defined for x32.
BUG=887
Change-Id: I90ac1d6843caff0416e1dd360c0be3dbaa85c2ae
the gtest implementation used only returns values between 0 and 2^31-1
+ temporarily disable some tests in lpf_8_test which misbehave with the
new range
Change-Id: I8a026680c4b8c12dc14d4f24c33edb2315963114
For key frame at speed 6: enable the non-rd mode selection in speed setting
and use the (non-rd) variance_based partition.
Adjust some logic/thresholds in variance partition selection for key frame only (no change to delta frames),
mainly to bias to selecting smaller prediction blocks, and also set max tx size of 16x16.
Loss in key frame quality (~0.6-0.7dB) compared to rd coding,
but speeds up key frame encoding by at least 6x.
Average PNSR/SSIM metrics over RTC clips go down by ~1-2% for speed 6.
Change-Id: Ie4845e0127e876337b9c105aa37e93b286193405
This commit reworks the ONE_LOOP_REDUCED coefficient probability
model update process. It allows model update for every coefficient
across the spectrum at a coarser resolution, instead of performing
precise update only for certain subset of probability models.
The overall runtime remains nearly same (<1% change) for speed -6.
The compression performance is improved by 7.5% in PSNR for speed
-5 and 4.57% for speed -6, respectively.
Change-Id: Ifb17136382ee7e39a9f34ff4a4f09a753125c8d1
Synchronize all threads immediately as a subsequent decode call may
cause a resize invalidating some allocations.
fixes one aspect of crbug.com/437655
Change-Id: Ie993b62c2756478543206ddbe43ec6268d90a470
Change 72056 unfolded some macro definitions,
but lost some alternative behaviour required for
high bitdepth encodes.
This causes the encoder to crash, see issue 884.
Change-Id: I8ce4d73c9fe0a3c10ccb86fba210fabc8b2f0ccc
Also removes some spurious changes in common/vp9_blockd.h which
was introduced by a rebase issue between nextgen and master branches.
Change-Id: If359f0e9a71bca9c2ba685a87a355873536bb282
(cherry picked from commit 005d80cd05)
(cherry picked from commit 08d2f54800)
(cherry picked from commit 4230c2306c)
This commit makes the codec automatically turn on error resilient
mode when using real-time mode for temporal scalable coding. It
fixes an enc/dec mismatch issue and re-enables the corresponding
unit test.
Change-Id: Ie1f7134e9a78ddd43e9b1555b3ee991c8a3afd0d
AQ2 modified to use mb_av_energy in defining variance
thresholds used alongside complexity when defining the
segment to be used for an SB64.
Slight improvements in metrics (ssim and PSNR).
Change-Id: Idb9cb73f7d9c4f7118cd7e84ac77b0f25cacbf81
Incorporate segment delta-q into estimated bits.
This generally improves the rate control under cyclic refresh (aq=3) mode.
Change-Id: I1dc60fb230e7d08357fae18909d8ed27bf58e037
A hidden enc/dec mismatch bug was accidentally triggered by
https://gerrit.chromium.org/gerrit/#/c/72247/
Adaptively adjust mode test kick-off thresholds in RTC coding
This commit temporarily turns off the broken unit tests to avoid
blocking other CLs while fixing.
Change-Id: I0a0f195030321190ce10879cd833187680576367
Probably not even the dominant platform the library is being built for.
Add --cpu= option description to help. The option already exists.
Don't allow passing just --cpu as a no-op.
BUG=826
Change-Id: Iaa3f4f693ec78b18927b159b480daafeba0549c0
This patch greatly increase the strength of AQ1.
Visual tests show strong gains on many clips but their is a big
hit on psnr.
SSIM is more mixed with some winners and losers.
Change-Id: Idaa5d3b41d8576096bfa000b62bc531c3d8bf6a1
Each tile's tok starting address is calculated before the encoding
process. These addresses are stored so that the same calculation
won't be done again in packing bit stream.
Change-Id: I0a3be0301f002260c19a850303f2f73ebc47aa50
