To get ready for pulling AV1 to nextgenv2. Refactoring is done to
make the code structures similar, especially for the motion search
part.

Change-Id: I5d7636394408d97de55394d668540f5627827983

Display the -b --bit-depth command line parameter on of aomenc when
 --config-aom-highbitdepth is enabled.

Change-Id: I76147e38b9985e68b1e642e21be8fd4d8ec4d966

Move computing the partition_cdf tables per symbol to
 computing them only when the probabilities are updated.

Change-Id: I442f9230ba00be7f5d0558d7c38d7324ad009ee8

Move computing the inter_ext_tx_cdf tables per symbol to
 computing them only when the probabilities are updated.

Change-Id: I5e1e62f8eae8f6b2edbbd378beeb786649502c10

Move computing the intra_ext_tx_cdf tables per symbol to
 computing them only when the probabilities are updated.

Change-Id: I26d5e419e103093e98a7d896c196176305b50fc9

Move from computing the switchable_interp_cdf per symbol to
 computing once per frame when the probabilities are adapted.

Change-Id: I6571126239f0327e22bb09ee8bad94114291683e

Change-Id: I2e939e898cc30c2999b47f2789191e08272b1cc0

* changes:
  Move av1_indices_from_tree() to common code space.
  Add code to compute in-order mappings for tokens.
  Fix bug in av1_tree_to_cdf_2D() macro.

* changes:
  Add missing CONFIG_DAALA_EC declaration.
  Add API for writing trees using a CDF.
  Add macro to build a simple cdf table.
  Use Daala entropy coder to code trees.
  Silence clang-format code review warning.
  Use Daala entropy coder to code bits.
  Clear existing format issue in the codebase
  Add Daala entropy coder.

Move the av1_indices_from_tree() function from av1/encoder/treewriter.c
 to aom_dsp/prob.c so that it can be used by both the encoder and
 the decoder.

Change-Id: Ie43c599f425c3503b1ff93f0c77b5033a05b1bb4

Without first including ./aom_config.h in aom_dsp/prob.c the memmove
 function is implicitly defined and causes a compiler warning.

Change-Id: I339d0389f10324a1085aba7d6492b2159a14da92

Add av1_indices_from_tree() function that computes a forward and inverse
 mapping of the tree leaf-node symbols to their in-order traversal.
This is necessary because many of the aom_tree binary trees have their
 leaf nodes out of order (e.g., an in-order traversal of a tree with n
 nodes does not start at symbol 0 and go to symbol n - 1), but the CDFs
 created by tree_to_cdf() are indexed in-order.

Change-Id: Icd0dbed4c171a67c9e84a634106c4fdb5b1b3488

Added aom_write_tree_cdf() and aom_read_tree_cdf() function calls to
 bitwriter.h and bitreader.h respectively.
These calls take a multisymbol CDF and an index and directly encode the
 symbol using the enabled entropy coder.
Currently only the daala entropy encoder supports this (enabled with
 --enable-daala_ec) and a compile error is thrown otherwise.

Change-Id: I2fa1e87af4352c94384e0cfdbfd170ac99cf3705

Change-Id: Ic04e180b09745fab2230d05985770c41deea4fad

Add the av1_tree_to_cdf() macro which takes a aom_tree_index tree and
 associated aom_prob probabilities and constructs a daala uint16_t cdf.
The av1_tree_to_cdf_1D() and av1_tree_to_cdf_2D() apply av1_tree_to_cdf()
 across 1D and 2D arrays respectively.

Change-Id: If79fa5ae034263f279d7d0842493570885272fb2

When building with --enable-daala_ec, calls to aom_write_tree() and
 aom_read_tree() will convert a aom_tree_index structure with associated
 aom_prob probabilities into a CDF on the fly for use with the
 od_ec_encode_cdf_q15().
The number of symbols in the CDF is capped at 16, and trees that contain
 more than 16 leaf nodes are handled by splitting the most likely, e.g.,
 highest probability symbols, first and coding multiple symbols if
 necessary.

ntt-short-1:

         MEDIUM (%) HIGH (%)
    PSNR 0.000227   0.000213
 PSNRHVS 0.000215   0.000205
    SSIM 0.000229   0.000209
FASTSSIM 0.000229   0.000214

subset1:

          RATE (%)  DSNR (dB)
    PSNR -0.00026   0.00002
 PSNRHVS -0.00026   0.00002
    SSIM -0.00026   0.00001
FASTSSIM -0.00026   0.00001

Change-Id: Icb1a8cb854fd81fdd88fbe4bc6761c7eb4757dfe

Change-Id: Ic76de4a4c0c39924bf04c3c2fa9214d33bcee9fb

When building with --enable-daala_ec, calls to aom_write() and aom_read()
 use the daala entropy coder to write and read bits.
When the probability is exactly 0.5 (128), then raw bits are used.

ntt-short-1:

          MEDIUM (%) HIGH (%)
    PSNR -0.027556  -0.020114
 PSNRHVS -0.027401  -0.020169
    SSIM -0.027587  -0.020151
FASTSSIM -0.027592  -0.020102

subset1:

         RATE (%)  DSNR (dB)
    PSNR 0.03296  -0.00210
 PSNRHVS 0.03537  -0.00281
    SSIM 0.03299  -0.00161
FASTSSIM 0.03458  -0.00111

Change-Id: I48ad8eb40fc895d62d6e241ea8abc02820d573f7

Fix the clang-format warnings on the existing codes.

Change-Id: I8e9e781b6f68f41a7fbd0a2116f6b35290d73dc8

Change-Id: I2849a50163268d58cc5d80aacfec1fd02299ca43

This causes rANS to operate at the same precision as the Daala EC.

aom/master stats: rans10uabs8lbase12 → rans15uabs8lbase15

objective-1-fast
PSNR YCbCr:      0.01%      0.01%      0.01%
   PSNRHVS:      0.01%
      SSIM:      0.01%
    MSSSIM:      0.01%
 CIEDE2000:      0.01%

subset1
PSNR YCbCr:     -0.01%     -0.00%     -0.00%
   PSNRHVS:     -0.01%
      SSIM:     -0.01%
    MSSSIM:     -0.01%
 CIEDE2000:     -0.01%

(cherry picked from aom/master commit ddbc2e2a)

Change-Id: I6ef0a4f6198784b3712a61af9f105d560a22eaea

Cherry-picked from aomedia/master: bf6c636f

Change-Id: Iea3fb46d23cb94d1152de3a7a40b6a183e78b4d7

This flag was already added to aomedia/master, so bringing it back to
webm/nextgenv2, as part of an effort to get the two codebases in sync.

Change-Id: I2b933a6a160e4210d1411a9e7978149eb8553205

Documents:
- https://software.intel.com/en-us/articles/intel-avx-state-transitions-migrating-sse-code-to-avx
- https://software.intel.com/sites/default/files/m/d/4/1/d/8/11MC12_Avoiding_2BAVX-SSE_2BTransition_2BPenalties_2Brh_2Bfinal.pdf

Change-Id: I90f85fcb15a7a2c49ee068300be6ffe9c68d371c

* changes:
  variance_avx2: sync variance functions with c-code
  Resolve -Wshorten-64-to-32 in variance.

Change-Id: I7650f1e96df0bcd53b1733c7967aae52dccf836a

This reverts commit 9b25f306 to
reinstate the reverted commit with fixes that solved the build issues
when --enalbe-clpf is used in configure.

Change-Id: I15447cae7fa9b3deb27976345dc3db230a4a7a60

This reverts commit 97535038.

Change-Id: I9f8e891739352ca2bde4b294e37c85a668f416e0