In 32-bit build with --enable-shared, there is a lot of
register pressure and register src_strideq is reused.
The code needs to use the stack based version of src_stride,
but this doesn't compile when used in an lea instruction.
This patch also fixes a related segmentation fault caused by the
implementation using src_strideq even though it has been
reused.
This patch also fixes the HBD subpel variance tests that fail
when compiled without disable-optimizations.
These failures were caused by local variables in the assembler
routines colliding with the caller's stack frame.
Change-Id: Ice9d4dafdcbdc6038ad5ee7c1c09a8f06deca362
H/V intra mode was only enabled for bsize < 16x16,
enable it also for bsize=16x16.
Metrics are neutral with this change:
Overall very small gain (0.1%), small visual gain on some RTC clips.
Change-Id: Ib2d7a44382433bfc11cf324aa3cc5c382ea9e088
For the experiment of EXT_REFS, removed the previous special handling
on the new last 3 references, i.e. LAST2_FRAME, LAST3_FRAME, and
LAST4_FRAME, at the decoder, so that these new last references are
treated the same way as the other 3 references (LAST_FRAME,
GOLDEN_FRAME, and ALTREF_FRAME). Encoder changes have been made
accordingly to realize this flexibility.
Change-Id: Ic6546f9443b4377bb7e7b101bfa3e70a8b8d1c65
The DST2 is implemented by input alternate sign-flip, followed
by DCT, followed by output reversal.
Results are roughly the same, but it should be easier to optimize
the DST2.
[Interestingly a mtrix multuiply implementation is about 0.1%
better].
Change-Id: If9ae5fdba87767fb0e6c163a62b77ee66a8d3afc
For testing implemented a fixed pattern and delta, 1 pass,
fixed Q, low delay mode.
This has not in any way been tuned or optimized.
Change-Id: Icf9b57c3bb16cc5c0726d5229009212af36eb6d9
(copied from VP9)
The one pass VBR mode selects a Q range based on a
moving average of recent Q values. This calculation
should have been excluding arf overlay frames as these
are usually coded at the highest allowed value. Their
inclusion skews the average and can cause it to drift
upwards even when the clip as a whole is undershooting.
As such it can undermine correct adaptation of the allowed
Q range especially for easy content.
Change-Id: I9e12da84e12917e836b6e53ca4dfe4f150b9efb1
For testing implemented a fixed pattern and delta, 1 pass,
fixed Q, low delay mode.
This has not in any way been tuned or optimized.
Change-Id: Idf5ee179b277fa15d07a97f14f2ce5bbaae80a04
The one pass VBR mode selects a Q range based on a
moving average of recent Q values. This calculation
should have been excluding arf overlay frames as these
are usually coded at the highest allowed value. Their
inclusion skews the average and can cause it to drift
upwards even when the clip as a whole is undershooting.
As such it can undermine correct adaptation of the allowed
Q range especially for easy content.
Change-Id: I7d10fe4227262376aa2dc2a7aec0f1fd82bf11f9
The culprit is on the decode side xd->lossless[i] setup was in wrong
location where segment features are not yet decoded.
Also on the encoder side, transform mode was not set consistently
between when tx_mode is selected and how tx_mode is enforced in
tx size selection.
Change-Id: I4c4c32188fda7530cadab9b46d4201f33f7ceca3
Keep track of frame indexes for the references, and
constrain inter mode search for reference with same
temporal alignment.
Improves speed by about ~15%, no noticeable loss in
compression performance.
Change-Id: I5c407a8acca921234060c4fcef4afd7d734201c8
Lower the threshold for splitting 32x32->16x16 based on average variance,
and add lower bound condition for this split to occur. This prevents
unneccassry splitting for areas with very low variance.
Change-Id: Ibeb33b3d993632c2019f296eb87ef3b7e3568189
For non-rd variannce partition, speed >= 5:
Adjustments to reduce dragging artifcat of background area near
slow moving boundary.
-Decrease base threshold under low source noise conditions.
-Add condition to split 64x64/32x32 based on average variances
of lower level blocks.
PSNR/SSIM metrics go down ~0.7/0.9% on average on RTC set.
Visually helps to reduce dragging artifact on some rtc clips.
Change-Id: If1f0a1aef1ddacd67464520ca070e167abf82fac
1) Add VP10_XFORM_QUANT_SKIP_QUANT mode for vp10_xform_quant
2) Let encode_block call vp10_xform_quant so that its code flow
is clear
Change-Id: I122d5cf6a089f444ae018f3e4bf844be847e17ee
