Adds a speed feature to disable split partition search based on a
given threshold on the source variance. A tighter threshold derived
from the threshold provided is used to also disable horizontal and
vertical partitions.
Results on derfraw300:
threshold = 16, psnr = -0.057%, speedup ~1% (football)
threshold = 32, psnr = -0.150%, speedup ~4-5% (football)
threshold = 64, psnr = -0.570%, speedup ~10-12% (football)
Results on stdhdraw250:
threshold = 32, psnr = -0.18%, speedup is somewhat more than derf
because of a larger number of smoother blocks at higher resolution.
Based on these results, a threshold of 32 is chosen for speed 1,
and a threshold of 64 is chosen for speeds 2 and above.
Change-Id: If08912fb6c67fd4242d12a0d094783a99f52f6c6
Making foreach_transformed_block_in_plane more clear (it's not finished
yet). Using explicit tx_size variable consistently instead of
(ss_txfrm_size / 2) or (ss_txfrm_size >> 1) expression.
Change-Id: I1b9bba2c0a9f817fca72c88324bbe6004766fb7d
The macro block mode info context originally contained an
entry for each 16x16 macroblock. In VP9 each entry refers
to an 8x8 region not a macro block, so the naming is misleading.
This first stage clean up changes the names of 3 entries in the
structure to remove the mb_ prefix.
TODO clean up the nomenclature more widely in respect of
mbmi and bmi.
Change-Id: Ia7305c6d0cb805dfe8cdc98dad21338f502e49c6
The conversion was done with the help of the checkbashisms script
and https://wiki.ubuntu.com/DashAsBinSh .
Change-Id: Id64ecefb35c8d72302f343cd2ec442e7ef989d47
Don't do vertical or horizontal splits if subsize < min_partition_size,
except for edge blocks where it makes sense.
Change-Id: I479aa66ba1838d227b5de8312d46be184a8d6401
Enable SSE2 implementation of high precision 32x32 forward DCT. The
intermediate stacks are of 32-bits. The run-time goes down from
32126 cycles to 13442 cycles.
Change-Id: Ib5ccafe3176c65bd6f2dbdef790bd47bbc880e56
Adding function build_inter_predictors_for_planes to build inter
predictors for specified planes. This function allows to remove
condition "#if CONFIG_ALPHA" and use MAX_MB_PLANE for general case.
Renaming 'which_mv' local var to 'ref', and 'weight' argument to 'ref'.
Change-Id: I1a97160c9263006929d38953f266bc68e9c56c7d
Invert loops to operate vertically in the inner loop. This allows
removing redundant loads.
Also add preloading of data.
Change-Id: I4fa85c0ab1735bcb1dd6ea58937efac949172bdc
Each iteration of the horizontal loop reuses 7 of the 11 source
values. Loading only the 4 new values saves some time.
Also add preload for source data.
Overall 4% faster on Chromebook.
Change-Id: I8f69e749f2b7f79e9734620dcee51dbfcd716b44
Deb Mukherjee
Paul Wilkins
James Zern
Guillaume Martres
hkuang
Dmitry Kovalev
Jingning Han
Johann
Mans Rullgard