This is an initial attempt to allow variable block size partition
in non-RD coding flow. It tests 8x8, 16x16 and 32x32 block size per
64x64 block, all using non-RD mode decision and the associated rate
distortion costs from modeling, then selects the best block size to
encode the entire 64x64 block. Such operations are triggered every
other 3 frames. The blocks of intermediate frames will reuse the
collocated block's partition type.
It improves the compression performance by 13.2%. Note that the gains
are not evenly distributed. For many hard clips, the compression
performance is improved by 20% to 28%. Local speed test shows that
it will also increase runtime by 50%, as compared to speed -7. It is
now enabled in speed -6 setting.
Change-Id: Ib4fb8659d21621c9075b3c369ddaa9ecb0a4b204
1. Save stats for each spatial layer
2. Add frame buffer management for svc first pass rc
3. Set default spatial layer to 1
4. Flush encoder at the end of stream in test app
This only supports spatial svc.
Change-Id: Ia89cfa87bb6394e6c0405b921d86c426d0a0c9ae
Brings back most of Jim's previous patch for choosing
partitioning based on variance while making it compatible
with the current state of the code. Also adds a
nonrd_use_partition() function to recursively encode for any
arbitrary sb_type decisions within a 64x64 block; and
includes some refactoring.
Currently, when the VAR_BASED_PARTITIONING mode is turned on
for speed 7, there is a 10+% speed-up observed.
Experiments/improvements with this new partitioning method
will be conducted subsequently.
Change-Id: Ie6f43bfbde30583e941f450bf07c3b48828c9571
Clean-ups include
a. redundant code in rt -5 speed feature settings
b. code that guarantees square block availability in
rd_auto_partition_range()
Change-Id: Ic7b04d45b6dc15c461e0edbbb4e78aec20348291
The block size used for non-RD mode decision in FIXED_PARTITION
setting was uninitialized. This commit fixes it by setting block
size to be BLOCK_16X16.
Change-Id: Ief04c9f1ab668de69297d9ab3dc15e2fa0bc4e95
Adds a fast diamond search which is about 5% faster than FAST_HEX
with only a 0.1% drop in psnr when turned on for both speeds 5 and 7.
This search is turned on for speed 7.
Change-Id: I497630aa88a5148926086bb3038e7975e5f4eb98
Set speed features before running frame encoding. This avoids
redundant RD threshold calculation in key frame coding.
Change-Id: If8e3cf2c02976baa59b310c1c23af9eea0c46e36
* Remove all non-DC intra modes for BLOCK_32x32 and up
* Remove all intra modes for blocks bigger than BLOCK_32x32
* Remove ZEROMV for BLOCK_32x32 and up
* Only consider NEARESTMV for blocks bigger than BLOCK_32x32
Change-Id: Ia18351a238213e2f072f9e481d622949346a245f
This patch adds a new speed feature which doesn't do the rather
expensive entropy context lookup or save to the table, while
doing costing.
The speed up on desktop36p.y4m is around 10% other clips much less.
On the RTC test set this was + 1% in overall datarate.
Change-Id: Ia5144bbf45270671e7be9c8e4055369909e2f738
The function has evolved over time, now only calls vp9_rtcd(), so this
commit removes the function and changes to call vp9_rtcd() directly.
Change-Id: I8cfa6190daa4b28f6f3d1e11bb3a07f9c95322bf
Adds a speed 8 to VP9 where only the nearestmv (0 mv) is searched.
This seems to be about the same speed as vp8 speed 5.
Adds a new speed feature to disable inter modes based on a mask for
each blocksize.
Adds code for having lower complexity motion search methods
in nonrd pick mode function, even though speed 7 still uses DIAMOND
search for now.
Also uses HEX search for speed 6 rather than FAST_HEX which improves
psnr by 0.56% without any noticeable speed drop (tested on gipsmotion).
Change-Id: Ic13176572dbd3aed5884a26786940a4b1bbd8a75
There was a bug in the previous code that if GOLDEN was better than
LAST neither would be used. LAST would get turned off due to superior
GOLDEN quality then all GOLDEN modes would get skipped.
Change-Id: I173f3720451707dab7b2cbbe8b8e6a047089bde7
Removing all copies of identical vp8_mse2psnr/vp9_mse2psnr functions.
Using vpx_sse_to_psnr() instead in all places.
Change-Id: I15beef9834d43d8fc8a8a7a2d1fc5de3d658fed8
The commit change to use partitions sizes directly from last frame
for frames directly where last frame selects partitions sizes based
on coding efficiency.
On --rt --cpu-used=-5, the change hurts compression by 4% but reduces
encoding time by ~20%
Change-Id: Ia68665e5c8489b7bfcf5fac7768332fba88928e6
Adds a method for determining a fixed size partition based on
variance of a 64x64 SB. This method is added to rtc speed 6.
Also fixes a bug in rtc_use_partition() and includes some
refactoring related to partitioning search, and some cosmetics.
Currently compared to speed 5, the coding efficiency of speed 6
is -19% and that of speed 7 is -55%, in cbr mode.
Change-Id: I057e04125a8b765906bb7d4bf7a36d1e575de7c6
If sf->disable_split_mask is DISABLE_ALL_SPLIT, disable
sf->adaptive_pred_interp_filter to avoid unnecessary operations.
Change-Id: Icb59174b2f4e9a3c3c16a696deb8018e5bd999eb
Moves the existing speed 6 to speed 7 and adds an
intermediate level 6 which is roughly in between
speeds 6 and 7 in both speed and coding efficiency.
Also includes some minor fixes/adjustments.
Change-Id: I98befc4d82d750e79fe426c457c4a2571f6b6cc7
When non-RD coding decision is used in rtc mode, the alt reference
is not used for inter frame prediction. This commit disabled alt ref
option whenever speed -6 is used.
Change-Id: I0b33ca03661de1db2d9bef1bcbff848cd4c9396f
In good quality mode motion search, the best matches are normally
found after searching in a large area. In real time mode, to make
encoding fast, a center-biased fast HEX search is used, which
converges quickly most of the time. A 4-point diamond search is
also carried out as the following refining search, which gives more
precise results, and maintains good motion search quality.
At speed 5, the borg test on rtc set showed an overall PSNR loss of
0.936%. The encoding speed gain is 4% - 5%.
Change-Id: I42cd68bb56a09ca1b86293c99d5f7312225ca7ae
- Rename and make static
s/vp9_compute_qdelta_by_rate/compute_qdelta_by_rate/
- Make base_q_index an integer.
- Add a cast.
Change-Id: Iea8d1397fd2717e7373b182ec51f5db960ef2cca
Prior to this commit, both encoder and decoder reset mode/mv info from
previous frame in error resilient mode to ensure bitstreams are able to
decode when there is loss of frame in decoder side. However, this is
not necessary. This commit changed to remove the reset, so encoder can
continue to use mode/mv/partition information from previously encoded
frame without affecting decodeablilty under loss of frame.
Change-Id: I0279f862900dc647fb471ae3389770bb1b9f454f
In rtc coding mode, the encoder is running non-RD mode decision. It
does not need dual buffer swap as was the case in the RD mode. This
commit initializes the internal buffer pointers outside the block
coding loop for rtc mode.
Change-Id: Ie076705c60d6b7919217e3f1dfd49e7db5064ac2
This function is deprecated after the re-design of partition search
that runs big block size, then four-way split, followed by
rectangular block sizes. This commit removes the related functions.
Change-Id: I417549c8e0fa3cf35bd29816b805dd4e7c3660c6
Removes certain cases of feedback of active_worst_quality,
and removes it from the RATE_CONTROL structure. Now active
worst quality is expected to be computed locally in the
q picking function during the encode.
Making temporal filter strength depend on avg_frame_qindex
rather than on active_worst_quality actually improves
performance esp. for yt.
derf: +0.038%
yt: +0.359%
Change-Id: I1fe5a343034b55af9322289165321f00ac0827b1
In real time encoding, we enable encode_breakout to make encoding
fast. A speed feature "use_encode_breakout" is defined to set
encode_breakout thresholds for different speeds.
However, currently, static_thresh is an encoder option. The encode_
breakout can be turned off if user sets static_thresh=0 specifically.
The rtc set borg test result: (need to set --static_thresh=1)
speed -5, psnr loss -3.543%;
speed -4, psnr loss -2.358%;
speed -3, psnr loss -0.771%.
Encoding speed test:
speed -5, 11% - 60% speedup;
speed -4, 5.5% - 28% speedup;
speed -3, 0.8% - 7% speedup.
Change-Id: Icde592ffbe77eac7446f872a2e9eb2051733677b
Aq 1 only updates segment map on kf and arf and
only uses 3 segments. With these settings AQ1 is
+ for most clips in SSIM but negative in psnr.
However, the penalty in PSNR is much less than
previously.
Old version aq1 average results for std hd
-20.899% psnr, -5.809% SSIM
New version aq1 for std hd
-3.57% psnr, +1.23% SSIM
Aq2 Now uses only 2 segments and rd.
This mode is still slightly negative for most clips on
psnr and SSIM but seems to have a much bigger visual
impact on several problem clips than aq mode 1.
Old results for std hd:
-2.578% psnr, -1.151% SSIM
New results for std hd:
-1.561% psnr, -0.85% SSIM
Change-Id: I94f57f8a73121629ce598fb921aad761c1450e1c
Some parameter changes and fixes on one-pass rate control.
derfraw300 is now only 10% below 2-pass speed 0 rate control.
Change-Id: I1940eef8a5a035dc18e71b880d5e00cabd1f01b9
This CL changes libvpx to call a function when a frame buffer
is needed for decode. Libvpx will call a release callback when
no other frames reference the frame buffer. This CL adds a
default implementation of the frame buffer callbacks. Currently
only VP9 is supported. A future CL will add support for
applications to supply their own frame buffer callbacks.
Change-Id: I1405a320118f1cdd95f80c670d52b085a62cb10d
Function encode_rtc_frame_internal() and encode_frame_internal() only
differed by a couple of speed features, this commit relocation those
difference into the setup of speed features and merged two functions
into one to remove duplication.
It also fixed a subtle bug super_fast_rtc was used before it was
initialized.
Change-Id: I234a5a1d11a4450930e5b4943dbab434208d5030
-Properly set the average frame size for each layer.
-Allow each layer to update its average/last Q stats after encoding.
-Initialize for some layer context variables.
Change-Id: Iaa37d144fcf4f30ff4283a4e8db8b9ca8bf4c815
Fixes some of the parameters for 1-pass non-cbr mode.
Also includes some cleanups, inlcuding refactoring of the
recode_loop options.
Results on derfraw300 improve by about 5-6%, so that the one-pass
mode is now 13% below the 2-pass mode in speed 0.
Change-Id: I844cc2638694c7574f3be00d41d60b23dc1016f0
This patch adds a buffer-based rate control for temporal layers,
under CBR mode.
Added vpx_temporal_scalable_patters.c encoder for testing temporal
layers, for both vp9 and vp8 (replaces the old vp8_scalable_patterns).
Updated datarate unittest with tests for temporal layer rate-targeting.
Change-Id: I8900a854288b9354d9c697cfeb0243a9fd6790b1
Jingning Han
Dmitry Kovalev
Minghai Shang
Yaowu Xu
Marco Paniconi
Deb Mukherjee
Alex Converse
Jim Bankoski
Yunqing Wang
Paul Wilkins
Adrian Grange
Tom Finegan
Frank Galligan