Add some rate control metrics.

Change-Id: Ie87c617bbdc31b0324c7c96a042f7bdb8aaa9c7e

Change-Id: I6ec6e072fcd59f9b5fac4ce221a86f9078103ae3

Change-Id: I08a4364672cf8171932e8e85fb74fcbfa4b27d2d

Change-Id: I716ea2967c6771d7adea571406f315a3197eab93

Change-Id: I39d78facc79a364cdc529b8cc4930d74f766d413

Change-Id: I668afb50614644d2eac2e968e1fafd6d73170bec

Change-Id: Id53b574a4ecb5c8749383b3758c46b6bc1b275d5

Use size_t for DecodeFrame()'s size arg, and cast only
at the vpx_codec_decode() call site. This silences warnings that
appear in svc_test.cc when building with vs2013.

Change-Id: I2cf39f02a45732c752097f07b0c7ad414b1517d8

Change-Id: Id15285aa48ac6d8fec19a1946e6391412d84f5be

This function initializes the predictor buffer pointers and
calculates reference motion vectors. It is only needed in the settings
of inter frame coding. Hence removing it from the key frame coding
branch in rtc_use_partition.

Change-Id: Ic4e16c7467a5f32be4e0bf619ef9d57afb4a7075

Change-Id: Ie79114bba4f0cea55d9f701e20d2be2017630f3b

Turns on AVX when the final characters of .c and .cc file names preceding the
.c and .cc file extension contain the substrings avx or avx2. This silences
many MSVC warnings issued during compilation files that use AVX.

Change-Id: I82bda394af7a688679abab2a50dd7e10b3cb0c7a

Change-Id: Ic5692af975fe6bd2d8ec82bbae103c6f7c2fc13e

This function is deprecated after the re-design of partition search
that runs big block size, then four-way split, followed by
rectangular block sizes. This commit removes the related functions.

Change-Id: I417549c8e0fa3cf35bd29816b805dd4e7c3660c6

The function rd_pick_reference_frame can be deprecated. Its use was
subsumed by the adaptive motion search control.

Change-Id: Icb0c2fa335f0f06fa7b79a71f972d9fa54d750db

Change-Id: I8aa3dd068d9a7225b3e8b24392a7b4a54b9435dd