Usage of encode_b_args is unnecessary because encode_block_pass1() doesn't
use them. That's why optimize_init_b() call is also not required.
Change-Id: Ib6cfe4916c2ca85749c90bb0adcba6fea592f9ac
As Yunqing suggested, this commit makes non-RD mode decision always run
sub-pixel motion search in NEWMV mode. The compression performance
gains becomes fairly significant after we enabled sub-pixel accuracy
motion compensated prediction to calculate SAD cost.
For test sequences pedestrian_area at 1080p and vidyo1 at 720p, the
runtime goes slower by 5%. For rtc test set, the compression performance
is improved by 21.20%.
Change-Id: I38cbfdd5c53d79423e1fafb3154f8ddeed63bbf0
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
This commit builds the actual prediction block in sub-pixel accuracy
and uses which to calculate SAD for non-RD mode decision. In the trail
run on pedestrian_area at 1080p, rtc speed -7 runtime goes from
23495 ms -> 25107 ms (7% slower). The compression performance is
improved by 20.57% for rtc test set.
Change-Id: I438589cd103fe99f1b50c2d1939ac6ca43fa0157
Use a set of dedicated variables to buffer the current best mode
in non-RD mode decision. This allows to use mode_info for more
complicated test in the non-RD process.
Change-Id: I6024c9feb0662afd3eb29f7017f7b5a5446f303f
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
The optimizer did something funny with the code around
line 1412. Before the call to encode_sb split_dist was
set properly but after it was adjusted and converted to
a negative.
https://code.google.com/p/webm/issues/detail?id=714
Change-Id: I9a7631d5325ade2dc28c1030653a23eecec8721b
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
If show_existing_frame indicates that the decoder should
display an existing (previously decoded) frame, add a
check to make sure that the signaled buffer does contain
a valid decoded frame.
Change-Id: Iac8c686b321827414d69a3f2d0467566911bcba2
for ABSDATA mode, so segment loop filter level always fall in valid
range for both Absolute and delta modes.
Change-Id: If90df3411479533dbdab63f8ae088d2f5dd174a9
The qindex for a segment was not clamped in ABSDATA mode, which may
cause invalid memory access if an ill-formed stream has a negative
value in ABSDATA mode. This commit added clamp to make sure qindex
for a segment always fall into valid range.
Change-Id: I0a74d00f4ef40aec7edaeca1d03c8645e23ab08c
