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Fixed an encoder crash. Set skip_txfm to 0 for cases that skip_txfm
isn't calculated. Put memcpy of skip_txfm at right place.

Change-Id: Ib3b6afc1b251a85b2a853c8138fb3393f48cfef6

Bit-stream clarification related to Issue 868.

Change-Id: I92a7bc5b7782c9ea5c3f6cceec761742183c9514

It is possible that the GOLDEN reference frame is not avaiable, in
which setting the predicted mv will be associated with a residual
value of INT_MAX. This commit checks this condition before
left shift and comparison with that of ALTREF frame, to avoid
overflow issue.

Change-Id: Ib98c3149dbdd016f2fe5beaafb13f67d469dd07c

Resolves a visual studio warning, and includes some cleanups.

Change-Id: I6a7576ef323c475b7d1c659800cd82c6cb1fd18d

This attempts to fix issue #847

Change-Id: Ifa2f96b6b33624004272d83363e089b5b4dc5626

Profiles 1-3 are stable enough that we can remove the
experimental bitstream commandline option.

Change-Id: Id2a64a08192d7eac6c45384ee34196330351c6d8

This commit adds proper initialization of segment id for variance AQ
mode in non-rd coding path. It fixes the enc/dec mismatch issue of
rt=7 with --aq-mode=1, as reported in issue #816

Change-Id: I02fa41b96345bf2e66077d5ea553f85ba800f7bb

Change-Id: Icbcfe7b56d88474f4398b4c5b52f6719d551ab4a

This commit enables the encoder to skip split partition search if
the bigger block size has all non-zero quantized coefficients in low
frequency area and the total rate cost is below a certain threshold.
It logarithmatically scales the rate threshold according to the
current block size. For speed 3, the compression performance loss:
derf  -0.093%
stdhd -0.066%

Local experiments show 4% - 20% encoding speed-up for speed 3.
blue_sky_1080p, 1500 kbps
51051 b/f, 35.891 dB, 67236 ms ->
50554 b/f, 35.857 dB, 59270 ms (12% speed-up)

old_town_cross_720p, 1500 kbps
14431 b/f, 36.249 dB, 57687 ms ->
14108 b/f, 36.172 dB, 46586 ms (19% speed-up)

pedestrian_area_1080p, 1500 kbps
50812 b/f, 40.124 dB, 100439 ms ->
50755 b/f, 40.118 dB,  96549 ms (4% speed-up)

mobile_calendar_720p, 1000 kbps
10352 b/f, 35.055 dB, 51837 ms ->
10172 b/f, 35.003 dB, 44076 ms (15% speed-up)

Change-Id: I412e34db49060775b3b89ba1738522317c3239c8

Incorporates the WRAPLOW macro into the non-highbitdepth transforms
to aid hardware verification between a software C model and an
intended hardware implementation though the use of the configure
options: --enable-experimental --enable-emulate-hardware.
Note that to avoid further discrepancies between the sse/sse2
implementations of the transforms and the C implementation, when the
emulate hardware option is invoked, we also disable sse/sse2/etc.

Also incudes some minor cleanups/renaming etc.

Change-Id: Ib864d8493313927d429cce402982f1c8e45b3287

Adds proper scaling for highbitdepth in a rdopt cost.

Change-Id: I066694799a7f491b830945ef1c66eb202071c355

To fix a VS warning.

Change-Id: I4c530c0afe8d06acdb8cc78b7995aba57a25373d

Change-Id: I59946642cb5c370726da33f4448a3deaba7d3f11

This commit changes the tables to be read only, which fixes
issue #866

Change-Id: I85bbe03f9d344f50570f8c1c61699bdc5cee248f

Change-Id: I777f49a3c2c2aaa04ae23904396bd7254e1afd8c

Change-Id: I0e262ede7eb4a4ae0c86181922d744e542e93350

Change-Id: I034b73bb27e8023733aae63e6f8565f0a64c7267

Change-Id: I5a566d6ade720f212a60c0ad5d6f1ee1d1d37f2e

Fixes an intermittent assert failure for highbitdepth.

Change-Id: If8cad0209a94f1184b69c7b3f1d587934f857d9b

Adds enums and corresponding vpx level code.

Change-Id: Ia402d47490a4466988d7edc6b7e3e5163f20a381