There was no benefit having this function. For example, inside
read_switchable_filter_type switchable filter context was calculated twice.

Change-Id: I79cd5bf95cbc0f6d8bf91a2e32289e01b18dcff1

Change-Id: Icb607745634e10b9bac5019d06661ece09fcdb40

Support enabling it or disabling it.  Moved read out to configure.sh
so that its done once instead of in make and in config.

Change-Id: I73a9190cf31de9f03e8a577f478fa522f8c01c8b

* changes:
  vp9/decoder: threaded row-based loop filter
  vp9/decoder: add thread worker

Change-Id: I3aae21e88b876d53ecc955260479980ffe04ad8d

Change-Id: I226e5094d216b09dc47fa5511a66e2d314608000

Adds a speed feature to skip all intra modes other than
DC_PRED if the source variance is small. This feature is
made part of speed 1 and up.

Results on derf300: psnr -0.07%, speedup about 1-2%

Also uses the source variance to fine-tune the early
termination criteria when FLAG_EARLY_TERMINATE is on.
This feature is made part of speed 2 and up.

Results on derf300: psnr -0.52%, speedup about 5-7%

Change-Id: I59e38aa836557cfa5405ae706fc64815cbfe4232

Currently the only threaded option for vp9 decode. Enabled when the
decoder config thread count is > 1.

Change-Id: I082959abac9e31aa4a38ed9fd68b94680e57f4df

vp9/decoder/vp9_thread.[hc]
Original source:
 http://git.chromium.org/webm/libwebp.git
 100644 blob b1615d0fb8d311666b2fa4561076c62d72c2e3ff  src/utils/thread.c
 100644 blob 13a61a4c84194c3374080cbf03d881d3cd6af40d  src/utils/thread.h

Local modifications:
 - s/WebP/VP9/g
 - camelcase functions -> lower with _'s

Change-Id: Ib6932640ee34f8b4782c6fbd15864a59d5d4c5fe

This changeset allows to remove vp9_switchable_interp and
vp9_switchable_interp_map arrays and make code much clear. Actually we
still have to use these mapping but only inside read_interp_filter_type and
write_interp_filter_type functions.

Change-Id: I4026c6f8c4acefba6c81421b7bacbaa52cc45f50

Cons bw/bh parms that should have been const. Additional formatting.

Change-Id: Icd36a5c9dc17dadd7284315ac0d6fef1a565ca16

- new date
- add VP9 to the title
- update list of available targets

Change-Id: I56263336db393020bac5da8e42fbac3a276ffb1f

Chromium does not support 32bit builds for Mac which use x86inc.asm.
Make the files which include it work if 64bit or not PIC enabled
starting with vp9_copy_sse2.asm

Consolidate these targets in vp9_rtcd_defs.sh

Change-Id: If18f0b957a611efd085a3ee7d245cf1eb91e8248

Change-Id: I428c4d42212b757112e3acfe5b81314cfbb5fd6b

This is an attempt at rewriting vp9_find_mv_refs_idx.   I believe that it gains
about 1-2% decode speed

Change-Id: Ia5359c94ce9bb43b32652890e605e9a385485c1b

Consistent names with TX_SIZE, TX_MODE, and TX_MODE.

Change-Id: I79592218bf5a40ace89197a34a06ee7de581ed8d

Change-Id: I94f6b4272b95ac101de6d10f048116ba065788b0

Removed functions:
  model_rd_for_sb_y,
  block_error_sby,
  get_sb_variance

Change-Id: Iec458df180caf6f8eac3605773841a4121dd3a8f

Using it instead of long unclear verbose check
"mbmi->ref_frame[0] != INTRA_FRAME".

Change-Id: I9c7b4b3797942fa962bf3ba7460fff3084beabe9

Change-Id: I8f21c18b29f54b277fb1c167f278f109d9f3b996

Change-Id: Ic878d31df2ce783a2c9a8c4bc9ed301ec8ffe25e

Change-Id: I3fe90eb40088a5b07bdc7d66d93ffe6ef99943d5