Change-Id: I2e387a06484a06301f3cd6600c4ba2f4335b61ee

Spatial/temporal svc code was removed. Verified using Borg test,
and the results before and after the change are matching.

Change-Id: I4c2ee5cd560428e3e50be02e57e5871ef4246390

prevents redeclaration warnings;
vp8 has its own define which will be resolved in a future commit

Change-Id: Ic941fef3dd4262fcdce48b73075fe6b375f11c9c

Code cleanup.

Change-Id: I668bd5a4e5fbe96969d51d9ee777fc5f1d8abfe6

Change-Id: Id691d8a9d4aa137e8de73fe680016fd4fd070e6e

Change-Id: I83b5c69621f9f28b742e5b13517d4e5b99c6cd26

Change-Id: I651b7bee90f33581368853da81f9622805ccc0ea

Change-Id: Ic5004f8bdc1c2b025b598e80374ee1f286ea95ee

Remove the vp9_ prefix from vp10 file names.

Change-Id: I513a211b286a57d6126fc1b0fbfd6405120014f1

This commit folks the VP9 and VP10 codebase and makes libvpx
support VP8, VP9, and VP10.

Change-Id: I81782e0b809acb3c9844bee8c8ec8f4d5e8fa356

Use system_state.h in vpx_dsp and remove unneeded includes of
vp9_systemdependent.h.

Change-Id: I92557ec6dd5aa790160b4f31fe7967db0d7ec3c4

Change-Id: I83ed3422f1f4009675ad2f5c4b7236bc7b83b30e

-For ambient qp in active_worst setting: increase the initial
averaging time (from very first frame) to account for avg_qp of key_frame.
-In postencode on key frame: update the last_q/avg_q[key_frame] for
all temporal layers.

Change-Id: I5313153d350b1045b4835ce948dfffb7d2039b52

Condition usage of rc.frames_since_golden to non-svc mode.

rc.frames_since_golden, which is used in non-svc mode to add second reference,
was causing, under certain condiiton, the turning off of golden reference
for svc case.

Change-Id: Icec644d235d0471e56d8ff73d6c37278bd6ecd3b

Change-Id: I264ca534cd7d4755906e20aea47e7a2523bca611

Remove the use of drop_frames_water_mark, as this is used for
frame dropping control. Use fixed threshold for now on buffer underflow.

Change-Id: If0ddda9f7f6fa96067cdcb0eccb42e17bda37c32

Use drop_frames_water_mark for threshold on buffer underflow,
and change threshold for resize down.

Change-Id: I2de19adce50abe9bcdc0b107528cec8cc1857fcc

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

From Change  Ibf0c30b72074b3f71918ab278ccccc02a95a70a0
There is still an issue relating to one animated test clip with repeat
patterns where this change effectively increase the default  maximum
arf interval by +1. This can be examined seperately.

Change-Id: Idd01d5480fc45202d8a059a0c3afc0997cc5bdd1

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

Only do the check for resizing if the feature is selected
(i.e., resize_mode = RESIZE_DYNAMIC).

And modify condition for checking to be resize_count >= window,
(since framerate can change).

Change-Id: Idceb4e50956bb965a1492b4993b0dcb393c9be4d

Change-Id: Ida8a04370895ed14bd118324ec2577da926e4648

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

-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

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: Idaf68d83d2cb03847f3ee002c4d00c2ac79da604

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

When aq-mode=3 is enabled, only for base layer frames should the
qp of the frame incorporate the segment delta-qp.

This was causing more rate mismatch for the enhancement layer frames
when running temporal layers with aq-mode=3 on.

Change-Id: I1c5e69d1ef8a51188af8696753c17fd8f67699b3

Previously limit on max interval  set to 0.5 seconds.
Though this helped some low frame rate material it
appears to be a bit too aggressive for some 24 and 25 fps
content. This patch relaxes the limit to 0.75 seconds.

The patch also adds a new minimum interval variable
to replace the current hard wired value. This allows us
to impose a limit on the maximum number of primary
arfs per second for high frame rate (e.g. 50 & 60fps)
content. This is to address concerns regarding playback
performance on some platforms if there is a high base
frame rate and very frequent arfs.

Change-Id: I373e8b6b2a8ef522eced6c6d2cceb234ff763fcf

This patch limits  the maximum arf interval length to
approximately half a second. In some low fps animations in
particular the existing code was selecting an overly long interval
which was hurting visual quality. For a sample problem test clip
(360P animation , 15fps, ~200Kbit/s) this change also improved
metrics by >0.5 db.

There may be some clips where this hurts metrics a little, but the
worst case impact visually is likely to be less than having an
interval that is much too long. On more normal material at 24
fps or higher, the impact is likely to be nil/minimal.

Change-Id: Id8b57413931a670c861213ea91d7cc596375a297

Added clamp on the rate correction factor after
it has been scaled.

Change-Id: I5d4b46a101987b43c5bcfd7e0bd1b7b4d53640a4

Some rate control adjustments to control overshoot
in the constrained quality mode.

Change-Id: I8907b9a883642d779009d0a138adfa6ba67e7f41

For non-SVC 1 pass CBR: make the GF update interval a multiple of the
cyclic refresh period, and use encoding stats to prevent GF update at certain times.

Change-Id: I4c44cacc2f70f1d27391a47644837e1eaa065017

The return value from vp9_compute_qdelta_by_rate, which is
a delta value for the quantizer, could never be 0 if
(qindex == rc->worst_quality).

This occurs because target_index was setup unconditionally
in the loop and yet the loop counter stopped at
(rc->worst_quality - 1).

Change-Id: I6b59cd9b5811ff33357e71cd7d814c5e53d291f2

Adjustment previously only enabled in VBR mode.

This patch allows adjustment of min and max q for CBR
and adjustment of max q only for CQ mode.

Change-Id: Id5e583f3d50453cd544fc57249acacd946457482

This commit prevent the encoder to update last_frame_type when a frame
is dropped in the encoder. Prior to this fix, if there is a dropped
frame immediatedly after a key frame, decoder would have the value of
last_frame_type as key frame, different from encoder as the dropped
frame in encoder would have updated the value to an inter frame. This
leads to different probability update in encoder and decoder, thereby
encoder/decoder mismatch.

This fixes issue #941

Change-Id: I27115224b138bec43ae3916c016574f5740822b0

Change-Id: I7f63c2940256a5dadf9a29a853809290dd9e98ed

Note: This feature is still in development.

Add an option for the encoder to decide the resolution
at which to encode each frame.

Each KF/GF/ARF goup is tested to see if it would be
better encoded at a lower resolution. At present, each
KF/GF/ARF is coded first at full-size and if the coded
size exceeds a threshold (twice target data rate) at
the maximum active Q then the entire group is encoded
at lower resolution.

This feature is enabled in vpxenc by setting:
  --resize-allowed=1

In addition, if the vpxenc command line also specifies
valid frame dimensions using:
  --resize-width=XXXX & --resize_height=YYYY
then *all* frames will be encoded at this resolution.

Change-Id: I13f341e0a82512f9e84e144e0f3b5aed8a65402b

Remove damping parameter and use the damping
formula introduced by Yaowu Xu in all cases.

Change-Id: I18db7e0d0f262d5140102f259ab07821d374d285