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Change-Id: I20c7b42631b579fade6cf7ebf6d4c69b2fcb5e5e

Ssim_vars is used to accumulate stats based 4x4 pixel blocks, this
commit changes the allocations size to be based on mi_rows and mi_cols
to avoid out-of-bound memory access for larger size videos. The hard
coded 720x480 can only work for image size up to 2880x1920.

Change-Id: Id9d07f3f777385b448ac88a6034b7472e4cf3c79

It in essence refactors the code for both the interpolation
filtering and the convolution. This change includes the moving
of all the files as well as the changing of the code from vp9_
prefix to vpx_ prefix accordingly, for underneath architectures:
(1) x86;
(2) arm/neon; and
(3) mips/msa.
The work on mips/drsp2 will be done in a separate change list.

Change-Id: Ic3ce7fb7f81210db7628b373c73553db68793c46

Clean up the forward 2D-DCT function names in vpx_dsp.

Change-Id: I3117978596d198b690036e7eb05fe429caf3bc25

Avoid scaling the references if they have already been scaled.
Change only affects 1 pass non-svc mode for now.

Change-Id: I204f4079c026cba7adce7a7f855d072f6139ccec

Change-Id: Ib919a8ec2ec66d460d2f8a26d72aabc09dcbbd72

The fast scaling for 1 pass mode was being used only on the
first frame after resizing event (because resize_scale_num/den
is set to 1 and only changed for first frame following resize event).

Change-Id: I723b63e21823eb858f25f5662d2bbe4f1842e61f

Proper use/update of resize_state and resize_pending to constrain
the total amount of downsizing to be at most one scale down, for now.

Change-Id: Id18fc32499f2fbdbec16728dcdc9e4eac09098f0

Use faster scaling on source.

Change-Id: I968df97239a86834c96126b86832d3d6d0875a53

The encoder gets its dqcoeff from the context tree. In the decoder move
it to directly after MACROBLOCKD.

Change-Id: I46c9b76f26956a360d17de0b26ecb994dae34ecb

Even if the recode loop is not enabled for the current frame type
trap the case where the projected size of a a frame is above the
maximum allowed in recode_loop_test()

Change-Id: I453004694b8f8699e3c2a83252e9f83adccdda4e

Change-Id: I66bf6720c396c89aa2d1fd26d5d52bf5d5e3dff1

Change-Id: I202d4924e627eec94838741df004ed9259d38b88

expose filter_kernels[] and do the table lookup directly

Change-Id: I0b10bff0327c3e01a723736141a9ffd377cd3d20

Adds two new vp9 parameters --min-gf-interval and --max-gf-interval
to enable testing based on frequency of alt-ref frames.

Also adds a unit-test to test enforcement of min-gf-interval.

For both these parameters the default value is 0, which indicates
they are picked by the encoder, based on resolution and framerate
considerations. If they are greater than zero, the specified
parameter is honored.

(Additional note by paulwilkins)
Note that there is a slight oddity in that key frames are also GFs and
considered part of  GF only group. However they are treated as not
being part of an arf group because for arf groups the previous GF is
assumed to be the terminal or overlay frame for the previous group.

(end note)

Change-Id: Ibf0c30b72074b3f71918ab278ccccc02a95a70a0

Replace vp9_ prefix with vpx_ for common multi-threading functions.

Change-Id: I941a5ead9bfe8213fdad345511d2061b07797b55

to MB_MODE_INFO_EXT.  This saves 36 bytes per 8x8 area for
both the decoder and encoder. (encoder has two MODE_INFO
buffers)

Change-Id: If006abb2224acaf326df3c2be09e77e967662107

Decision to scale down/up is based on buffer state and average QP
over previous time window. Limit the total amount of down-scaling
to be at most one scale down for now.

Reset certain quantities after resize (buffer level, cyclic refresh,
rate correction factor).

Feature is enable via the setting rc_resize_allowed = 1.

Change-Id: I9b1a53024e1e1e953fb8a1e1f75d21d160280dc7

set_frame_size() is being called twice, once before entering
encode_encode_frame_to_data_rate(), and once again in that function.
No need to call it twice for one-pass mode.

Change-Id: I5fabaf0a90482d4f42cd89ef7ae1402c31aec600

this function is only needed with CONFIG_INTERNAL_STATS

Change-Id: I9c8d16cb9069dd8370f8b30329933c0d97f6d0aa

For content that is identified as likely to contain some
animation or graphics content, increase the availability
of split modes for good quality speeds 1-3.

On a problem test animation clip this improves metrics
results by about 0.25 db and makes a noticeable difference
visually. It also causes a small drop in file size (~0.5%) but
a rise in encode time of about 5-6% at speed  2.

For more normal content it should have no effect.

Change-Id: Ic4cd9a8de065af9f9402f4477a17442aebf0e439

Some places are using the unoptimized variance function. This was never
intended and does not fit into the optimization framework.

Change-Id: Id96238407aad03b0ffd4a46cd183555a026daedc

-Make Rate control work for SVC 1 pass CBR mode.
-Added temporal layering mode.
-Fixed bug in non-rd variance partition.
-Modified/updated the sample encoders (vp9_spatial_svc_encoder, vpx_temporal_svc_encoder).
-Added datarate unittest(s) for 1 pass CBR SVC.

Change-Id: Ie94b1b68a56ea1267b5087c625e5df04def2ee48

Change-Id: If28b59b9521204a6e3aecedcf75932d76a752567

Break out the setting of the block variance split thresholds,
since they are locally modified, e.g., based on local/segment qp.

No change in performance.

Change-Id: I0a3238e6dab05140657539fc4bd27ac5ff7a554e

Change-Id: Ibab09aa0e8c69cf5efea2f0ec035e5da9cc894b0

subpel functions will be moved in another patch.

Change-Id: Idb2e049bad0b9b32ac42cc7731cd6903de2826ce

Change-Id: I8655a6760ab61947c09f337ddd9f4c1baf803a56

Change-Id: I33b0384ee87f83950e03be6c999bc5f193055fd3

This patch provides a partial rapid feedback of bits
resulting from extreme undershoot.

Some  improvement on some problem animated material
but in its current form only a small impact on the metrics results
of our standard test sets.

Change-Id: Ie03036ea8123bc2553437cb8c8c9e7a9fc5dac5d

This patch addresses two issues that can occur when the
encoder chooses to use a mixture of ARF and GF groups.

The first issue relates to a failure to reset the "ARF active" flag
correctly when transitioning from coding ARF groups to coding
GF groups. This caused some golden frames to be  encoded
with an incorrect bit rate target as if they were ARF overlay frames.

The second issue relates to the encoding of a single short GF group
just before a key frame.  Where the last group before a key frame
is an ARF group we expect the final frame before the key frame  to
be an low data rate overlay frame. However, when the last  group
is a GF group, the final frame before the key frame should be a normal
frame with a normal bit allocation. This issue had the potential to cause
a single poorly coded frame just before a key frame. If that key frame
were a forced key frame rather than a real scene cut, this might cause
pulsing.

Change-Id: Idf1eb5eaf63a231495a74de7899236e1ead9fb00

silences missing prototype warnings

Change-Id: I3338fcaa67b5dcdf6bf237e8b374db3befd18753

Testing on another rate control patch reveals that in some
situations, where the encoder is flipping in and out of arf
mode, we get an encoder decoder mismatch.

Whilst it is still not clear why, skipping  the last buffer
update seems to trigger the problem. Until I can establish
why, or if there is another underlying cause, I am reverting
this change.

This reverts commit e5112b3a.

Change-Id: I315c5200414de89458015823344b7367e9dd75ba

With the sad functions, and hopefully the variance functions soon,
moving to the vpx_dsp location, place the defines used in the
reference C code in a common location.

Change-Id: I4c8ce7778eb38a0a3ee674d2f1c488eda01cfeca

The computation of new metrics is not supported yet in highbitdepth
mode. This commit adds protection to make sure the computation is
done only when highbitdepth is not on. This protection shall be
revised when support of highbitdpeth computation is added.

This resolves the encoder crash when configured with both
--enable-internal-stats
--enable-vp9-highbitdepth

Change-Id: Id9f4bcc4fa26d9ca0e9eabade83f3f88a5b212e6

When the frame size changes we must recompute details
of the tile dimensions.

Change-Id: Ie519bd6da47b5cd43933c0bcfc0f2429bcb01986

Where a frame appears to be a repeat of an earlier
frame or frame buffer,  but the first pass code
does not anticipate this (usually because it is matching
the GF or ARF buffer not the last frame buffer), do not
update the last frame buffer.

This helps ensure that the content of the last frame buffer
is kept "different" where possible, and not updated to
match the GF or ARF. This is particularly helpful in some
animated sequences where there are groups of repeating
frames. Here it has quite a big impact. However, in most
of our standard test clips it has little or no impact.

Change-Id: I77332ee1a69f9ffc0c6080bfeb811c43fd8828e6

Create a new component, vpx_dsp, for code that can be shared
between codecs. Move the SAD code into the component.

This reduces the size of vpxenc/dec by 36k on x86_64 builds.

Change-Id: I73f837ddaecac6b350bf757af0cfe19c4ab9327a

vestigial. replace instances with memset() which they already were being
defined to.

Change-Id: Ie030cfaaa3e890dd92cf1a995fcb1927ba175201

vestigial. replace instances with memcpy() which they already were being
defined to.

Change-Id: Icfd1b0bc5d95b70efab91b9ae777ace1e81d2d7c