Jingning Han [Thu, 19 May 2016 16:57:23 +0000 (09:57 -0700)]
Properly handle the filter extension in highbd setting
This commit makes the filter extension in highbd aware of the
dual filter and ext-interp experiments to prevent enc/dec mismatch
when both experiments are turned on.
Jingning Han [Tue, 17 May 2016 01:27:20 +0000 (18:27 -0700)]
Rework sub8x8 chroma component inter predictor
This commit makes the sub8x8 chroma component inter predictor
operate at 2x2 block level. This allows one to use the actual motion
vector associated with each individal pixel block. It improves the
compression performance
Geza Lore [Wed, 18 May 2016 14:29:30 +0000 (15:29 +0100)]
Fix obmc + ext-interp interference
With ext-interp, a switchable interpolation filter is coded iff the
motion vector uses fractional pixel movement (ie, true subpixel
movement). With ext-interp and obmc enabled at the same time, the RD
search proceeds as:
1. Do motion search
2. Do interpolation filter search iff subpixel motion, otherwise use
EIGHTTAP_REGULAR
3. Evaluate obmc=0
4. Evaluete obmc=1 - This involves another motion search
If the motion search in step 4 yields an integer motion vector, while
the search in step 1 did not, then an interp_filter value other than
EIGHTTAP_REGULAR is invalid, and will cause an assertion failure
at output time, or a mismatch if not using --enable-debug.
The fix sets the interp_filter to EIGHTTAP_REGULAR if obmc=1 is picked
with an integer motion vector.
Yi Luo [Tue, 17 May 2016 16:54:56 +0000 (09:54 -0700)]
Fix to conform Google's coding convention
- Confirm input coeff buffer is 16-byte aligned.
- sizeof() prefer variable name instead of type.
- Fix function name (Capital first letter then Pascal case).
- Long base class name uses a newline (with colon and 4 space indent).
- Remove a unnecessary reference function variable.
- Method declaration precedes variable declaration in class definition.
Jingning Han [Sat, 7 May 2016 00:12:52 +0000 (17:12 -0700)]
Account sub8x8 block reference filter type for prob context
If a reference block is coded with sub8x8 block size, and if it
has sub-pixel level motion vectors, its prediction filter type
should be used as context information.
The coding performance gains of dual filter type coding scheme are
lowres 0.57%
hdres 0.88%
- Integrate 5 flip transform types for each 4x4, 8x8, and 16x16
block, for experiment, EXT_TX.
- Encoder speed improves about 12%-15%.
- Update the unit tests for bit-exact result against C.
This commit fixes issue 1141. The issue was triggered in multi-tile
encoding. The change properly saves and restores the block context
information in the real-time mode selection process. It removes
several redundant memcpy operations in sub8x8 intra block mode
search.
Increases number of wedges for smaller block and removes
wedge coding mode for blocks larger than 32x32.
Also adds various other enhancements for subsequent experimentation,
including adding provision for multiple smoothing functions
(though one is used currently), adds a speed feature that decides
the sign for interinter wedges using a fast mechanism, and refactors
wedge representations.
lowres: -2.651% BDRATE
Most of the gain is due to increase in codebook size for 8x8 - 16x16.
Angie Chiang [Mon, 16 May 2016 18:12:18 +0000 (18:12 +0000)]
Merge changes I6aa75c66,Id5f0fade,I368d365e,Ibaf7b00b into nextgenv2
* changes:
Refactor and add flip unit test to vp10_inv_txfm2d_test.cc
Add flip feature to vp10_inv_txfm2d.c
add unit test for highbd flip transform
Refactor vp10_fwd_txfm2d_test.cc
Yi Luo [Fri, 13 May 2016 17:08:13 +0000 (10:08 -0700)]
HBD inverse HT 4x4 SSE4.1 optimization
- Tx_type: DCT_DCT, DCT_ADST, ADST_DCT, ADST_ADST.
- Encoder overall instruction count drops 2.91%.
- Decoder overall instruction count drops 1.01%.
- Add unit test to test bit-exact result against C.
Jingning Han [Thu, 12 May 2016 21:30:23 +0000 (14:30 -0700)]
Refactor the inter predictor for supertx
This commit unifies the inter predictor used in supertx at both
encoder and decoder sides. It removes the redundant decoder
implementations related to border extension.
Jingning Han [Thu, 12 May 2016 19:50:12 +0000 (12:50 -0700)]
Unify the use of inter predictor in encoder and decoder
This commit unifies the inter predictor used in the encoder and
decoder side for super-tx experiment. This resolves an enc/dec
mismatch found in nextgenv2 nightly-run unit test.
Yunqing Wang [Thu, 5 May 2016 23:42:57 +0000 (16:42 -0700)]
Add decoder APIs and unit tests in tile-coding experiment
In the tile-coding experiment,
1. In tile decoder, added 2 set control APIs:
VP10_SET_DECODE_TILE_ROW and VP10_SET_DECODE_TILE_COL. It allowed
users to set the range of decoding at frame level.
2. Added a unit test while tile-coding experiment is on. It tested
both tile encoder and decoder to make sure the encoded frame
can be decoded as a whole frame or as independent tiles.
Jingning Han [Wed, 11 May 2016 22:50:58 +0000 (15:50 -0700)]
Fix highbd masked variance function declaration
Fix the variable type mismatch between highbd_calc_masked_var_t and
the actual function definiton. This clears the related compiler
warnings in highbd with ext-inter experiment.
Weighted single motion search is implemented for obmc predictor.
When NEWMV mode is used, to determine the MV for the current block,
we run weighted motion search to compare the weighted prediction
with (source - weighted prediction using neighbors' MVs), in which
the distortion is the actual prediction error of obmc prediction.
Coding gain: 0.404/0.425/0.366 for lowres/midres/hdres
Speed impact: +14% encoding time
(obmc w/o mv search 13%-> obmc w/ mv search 27%)
Sarah Parker [Thu, 5 May 2016 23:35:27 +0000 (16:35 -0700)]
Move new quant experiment in quant_common.c from nextgen
NEW_QUANT allows bin widths to be modified as a factor of the nominal
quantization step size. This adds functions to get dequantization
values based on the dequantization offset and 3 knots for a single
quantization profile.
projects / libvpx / log