Group algorithm interfaces to avoid undocumented warning from doxygen
and provide basic documentation for CQ level & cpuused.

Change-Id: I11095061be962cbc998741de9c8c3019d415e137

Removed unnecessary copies.  No noticeable speed gains.


Change-Id: I996c50c23fedd06d54ee7a3e762cbf559cc4a9d1

This fixes an overflow problem in the frame error accumulators.

The overflow condition is extreme but did trigger when Frank B.
coded some high motion interlaced HD content.

The observed effect was a catastrophic  breakdown of the rate
control leading to massive undershoot and poor bit allocation.

All the error values should really be unsigned but I will look at this
separately.

Change-Id: I9745f5c5ca2783620426b66b568b2088b579151f

this has been broken since the initial release

Change-Id: If0d4deb2de9f7d0c4c05641e2bbf9cc1bf11e171

This reverts commit f50f2fd2.

Change Ib7506e3e aligns the buffer

Change-Id: Ie0f8bd3e57cfdfef81d39638a1451458ebbae2e0

Change-Id: I64fa47889c54cfed094a674c49ef0996d49bdd42

Removed a number of files that were unused or little-used.

Change-Id: If9ae5e5b11390077581a9a879e8a0defe709f5da

Clean up some unnecessary scoping around pick_filter_level.

Change-Id: Ic57fa33e3fcae37fe6beae977e5743783399d5af

No need to reinitialize for base Q changes.

Change-Id: Ie76ec21dd3c5582d5183dbed75ed73a1eed3e291

Change-Id: I58154faf4f3ece24f9927a5c3ab7e830e0887fb6

Eliminate unnecessary checks on target endianness and associated
macros.

Change-Id: I1d4e6a9dcee9bfc8940c8196838d31ed31b0e4aa

Change-Id: I4a328ce152d9dbe6b0d1606d1b523e8e7bfb468e

- correct spelling
- remove explicit file name w/\file (unnecessary when contained in the
  same file and prone to desync)

Change-Id: I68a3960ac5ab84d0f2e5c9b2e29799f26dfccf23

Currently, when the video frame width is not multiples of 16, the
source buffer has a stride of non-multiples of 16, which forces
an unaligned load in SAD function and hurts the performance. To
avoid that, this change allocates source buffers to be multiples
of 16.

Change-Id: Ib7506e3eb2cea06657d56be5a899f38dfe3eeb39

vpx_free if used contains this check. If replaced, well behaved free
will behave similarly.

Change-Id: I25483aaa8b39255b9a8cf388d6e5eaa20a908ae1

Eliminated unnecessary calculations. Very small change
to performance.

Change-Id: Ib7213d43c64e36955177c4d47950ff472266f822

In real-time mode, vp8_sad16x16 function is called heavily in
motion search part. Improvement of this function gives 1.2%
encoding performance gain (real-time mode, tulip clip).

Change-Id: I23c401fc40c061f732a9767e8d383737a179bd58

checks added to make sure that cpi->tplist
is freed correctly in vp8_dealloc_compressor_data
and vp8_alloc_compressor_data.

Change-Id: I66149dbbd25c958800ad94f4379d723191d9680d

Eliminated unnecessary calculations.  Improved performance
by 10% on keyframes and 1.6% overall for the test clip used.

Change-Id: I87671b26af5e2cc439e81d0fee3b15c7cd2a3309

hasn't been kept up to date. remove it to avoid confusion.

Change-Id: I52ffde19b59fec5c7a381299ca2e85cb38330be7

As mentioned in check-in "Improve motion search in real-time mode",
MV prediction calculation causes speed loss for speed 7 and above.
This change added a flag to turn off this calculation for speed>6
in real-time mode.

Change-Id: I9f4ae5a8bf449222d1784b54e7d315fc8347b2d1

Adds a new ARMv6 optimized function vp8_sad16x16_armv6 to encoder.

Change-Id: Ibbd7edb8b25cb7a5b522d391b1e9a690fe150e57

Allow compiling without adding vp8/{common,encoder,decoder} to the
include paths.

Change-Id: Ifeb5dac351cdfadcd659736f5158b315a0030b6c

Applied better MV prediction in real-time mode, which improves
the encoding quality.

Used quarter-pixel search instead of iterative sub-pixel search
for speed >=5 to improve encoding performance.

Tests on the test set showed:
1. For speed=-5, quality improvement: 1.7% on AvgPSNR and 2.1%
on SSIM, performance improvement: 3.6% (This counts in the
performance lose caused by MV prediction calculation in "Improve
MV prediction in vp8_pick_inter_mode() for speed>3").
2. For speed=-8, quality improvement: 2.1% on AvgPSNR and 2.5%
on SSIM. but, 6.9% performance decrease because of MV prediction
calculation. This should be improved later.

Change-Id: I349a96c452bd691081d8c8e3e54419e7f477bebd