This commit enables the search for the optimal superblock
partition types in the recursion form. The intention is to
make the optimization process more concise and ready to
support partition down to 4x4 block size next.
Change-Id: Iae279a67df3a7cc372553c84c775bc4d2f3e4336
Update and buffer left/above partition information context per 8x8
block. This allows to further enable recursive partition down to
4x4 block size, and hence deprecating I4X4_PRED and SPLITMV.
This commit also fixes a context buffer swap/restore issue in 32x32
partition type search. This gives 0.1% performance gain for derf/yt.
Will refactor the superblock partition type search into recursion
form.
Change-Id: Ib61975aca5f12b78d8018481d7fa1393d085689b
This setup is now handled by vp9_build_intra_predictors()
when left_available and/or up_available is zero.
Change-Id: I59cec0ab95f8be69ce885fd20727510e4deef8a0
The number of reference buffers is extended to 8 and
a reference sign-bias added for the LAST_FRAME.
Whilst the number of reference buffers used by an
individual frame remains unchanged at 3, these may
now be selected from 8 possible buffers.
Change-Id: I2d247b9c1c2b3a339d6c9fac125e81ba373f75a7
Don't allow i4x4 except for sb8x8 recursion step. Read only 4 (not 16)
i4x4 submodes if we are i4x4.
Change-Id: Iaaaced1a134006b2c96eed66f014300eae41e0ed
If a reference frame is inter, the only valid modes would
be inter modes. This check is unnecessary.
Change-Id: Ib8433ab5a3418f94149ee4e3062d48d7740d225a
The decode_mb only carries I8X8_PRED decoding, which will be covered
by the regular MB intra modes when SB8X8 is on. To be removed later.
Change-Id: I3b9ee55917a30b42518b81987bc10c22b1a19e7f
Work-in-progress, not yet ready for review. TODO items:
- bitstream writing (encoder) and reading (decoder)
- decoder reconstruction
Change-Id: I5afb7284e7e0480847b47cd0097cb469433c9081
Changing the order of probabilities inside mb_segment_tree_probs in order
to use treed_read/treed_write function instead of custom code.
Change-Id: I843487d5057913b9358db73da270893eefecc6c8
Moving common code from encoder and decoder to vp9_get_qindex function.
Also moving quant-related constants from vp9_onyxc_int.h to
vp9_quant_common.h.
Change-Id: I70c5bfbaa1c8bf00fde0bfc459d077f88b6d46c8
Separate the decoding process of 4x4 block based coding (both intra
and inter) from decode_mb and move it into decode_atom_. This allows
to further move the rest per 16x16 block decoding of decode_mb into
decode_sb, and hence eventually deprecating decode_mb when SB8X8 is
enabled.
Change-Id: I678cb8007d8a57b792d7a23020edb0c74fbf4237
