Modified the thresholds of deciding whether or not to skip
the transforms in model_rd_for_sb_y(). Used zbin[] instead
of dequant[] to be more precise. Also, modified the checking
coditions.
Rtc set borg test results (at speed 6) showed:
average PSNR gain: 0.138%, overall PSNR gain: 0.158%,
and SSIM gain: 0.177%.
The data rate test was modified slightly as suggested by
Marco.
Change-Id: Ieaf633ab77f4838cb3c45cf69065b29d55f8ae6c
This commit introduces a new block match motion estimation
using integral projection measurement. The 2-D block and the nearby
region is projected onto the horizontal and vertical 1-D vectors,
respectively. It then runs vector match, instead of block match,
over the two separate 1-D vectors to locate the motion compensated
reference block.
This process is run per 64x64 block to align the reference before
choosing partitioning in speed 6. The overall CPU cycle cost due
to this additional 64x64 block match (SSE2 version) takes around 2%
at low bit-rate rtc speed 6. When strong motion activities exist in
the video sequence, it substantially improves the partition
selection accuracy, thereby achieving better compression performance
and lower CPU cycles.
The experiments were tested in RTC speed -6 setting:
cloud 1080p 500 kbps
17006 b/f, 37.086 dB, 5386 ms ->
16669 b/f, 37.970 dB, 5085 ms (>0.9dB gain and 6% faster)
pedestrian_area 1080p 500 kbps
53537 b/f, 36.771 dB, 18706 ms ->
51897 b/f, 36.792 dB, 18585 ms (4% bit-rate savings)
blue_sky 1080p 500 kbps
70214 b/f, 33.600 dB, 13979 ms ->
53885 b/f, 33.645 dB, 10878 ms (30% bit-rate savings, 25% faster)
jimred 400 kbps
13380 b/f, 36.014 dB, 5723 ms ->
13377 b/f, 36.087 dB, 5831 ms (2% bit-rate savings, 2% slower)
Change-Id: Iffdb6ea5b16b77016bfa3dd3904d284168ae649c
There is a corner case that when a frame is corrupted, the following
inter frame decode worker will miss the previous failure. To solve
this problem, a need_resync flag needs to be added to master thread
to keep control of that.
Change-Id: Iea9309b2562e7b59a83dd6b720607410286c90a6
using this to control reallocation would miss a change if the function
were not called for every frame.
fixes potential memory corruption by the subsequent memset
Change-Id: I4c6bb6ab68803104fc824c7e27cc2f9b2cf53e33
use VP[89]_INSTANTIATE_TEST_CASE case when possible to disable the tests if
the codec is unavailable.
broken since:
be6aead Try again to merge branch 'frame-parallel' into master branch.
Change-Id: I8d81c5ba3b951f82be94bfaed6be194e4289baec
This commit prevent the encoder to update last_frame_type when a frame
is dropped in the encoder. Prior to this fix, if there is a dropped
frame immediatedly after a key frame, decoder would have the value of
last_frame_type as key frame, different from encoder as the dropped
frame in encoder would have updated the value to an inter frame. This
leads to different probability update in encoder and decoder, thereby
encoder/decoder mismatch.
This fixes issue #941
Change-Id: I27115224b138bec43ae3916c016574f5740822b0
Replaced a divide by 9 with 8, so some very small difference,
but otherwise no change in behavior.
Change-Id: I1079ae3c41e0789ff0bc6fa9940a238b6bca0f5b
Simple skin detection, from vp8; works reasonable on most of the
RTC clips, but could miss sometimes.
Added debug flag to write out skin map over source input.
Change-Id: I2caea7592f1c459047aac46627eeb24a94946464
This commit allows the encoder to properly account for the mode
cost in sub8x8 non-RD mode decision.
Change-Id: I2951960d20e37ed08e372ee0c7044935b2b9b899
Add the rate cost on inter prediction filter type to the overall
rate-distortion cost in vp9_pick_mode_inter.
Change-Id: I72c34017adf5220cadb3962694ee5404469fc673
This commit adds a heuristic rate cost of reference frame to the
non-RD mode decision. It improves the compression performance of
speed -6 by 0.31% and speed -5 by 0.69%.
Change-Id: If7f3b45519d49b2cb640bcb7316a254efc8be446
This enbale the encoder to set color space information for the input
video, so it is then coded in the output bitstream.
Change-Id: Ife03deab3c762425ccd27c4c190902c4d94a76f4
MODE_INFO struct was modified, and vp9_print_modes_and_motion_vectors()
didn't work anymore. This patch modified vp9_debugmodes.c so that
this function works again for debug usage.
Change-Id: I293fae0295235deb2529a460a274caf7c045ac1a
This is to avoid redo the same calculation repeatly, and also allow
easier adjustments for further experiments.
This commit shall have no effect on quality/compression.
Change-Id: I4460acf5c808ff5518da18d21e002c5da58af857
Note: This feature is still in development.
Add an option for the encoder to decide the resolution
at which to encode each frame.
Each KF/GF/ARF goup is tested to see if it would be
better encoded at a lower resolution. At present, each
KF/GF/ARF is coded first at full-size and if the coded
size exceeds a threshold (twice target data rate) at
the maximum active Q then the entire group is encoded
at lower resolution.
This feature is enabled in vpxenc by setting:
--resize-allowed=1
In addition, if the vpxenc command line also specifies
valid frame dimensions using:
--resize-width=XXXX & --resize_height=YYYY
then *all* frames will be encoded at this resolution.
Change-Id: I13f341e0a82512f9e84e144e0f3b5aed8a65402b
