Conflicts:
	vp8/encoder/encodeframe.c
	vp8/encoder/ethreading.c
	vp8/encoder/onyx_int.h

Change-Id: I1c562d2fe6e42c0d1d86f68c77c0e899066e02bd

Change-Id: Ib487cbd7b214a6e3f13180bc0e5dcb792d8a406e

The encoder was not correctly catching transitions in the quantizer
deltas. If a delta_q was set, then the quantizer would be reinitialized
on every frame, but if they transitioned to 0, the quantizer would
not be reinitialized, leading to a encode-decode mismatch.

This bug was triggered by commit 999e155f, which sets a Y2 delta Q
for very low base Q levels.

Change-Id: Ia6733464a55ee4ff2edbb82c0873980d345446f5

Change-Id: I0d41415e3961c2c9492d342290c1999f9d02e6d8

Change-Id: I242ca4854cb21f3d63efb979bd6ecc9f06f67f33

manipulating it in situ via a pointer.

Change-Id: If4a87a4eccd84f39577c0e91e171245f4954c5cf

Change-Id: I5744269a35e2d696ecf40c1665efd572bfc9b6cb

Whe auto keyframe insertion is enabled and conditions are right (scene change)
the encoder can decide to insert a key frame and does a re-encoding. This can
introduce extra latency. In RT mode we do not do the re-encoding of the current
frame but force the next frame to key frame.

Change-Id: I15c175fa845ac4c1a1f18bea3676e154669522a7

Change-Id: I585615400697b77c50dd05480616f868f2637aa7

instead of each time mode is tested.

Change-Id: Ief0f5586dafde54cc14d348dcecdacb182e7c1d5

Change-Id: I2bcef6a8e47f88542861fd1356631ca934e2a0e7

Then removed unnecessary code.

Change-Id: I142658815d843c9396b07881dbdd8d387c43c90e

Restructured function in order to eliminate the prediction
modes save/restore.  Code cleanup also.

Change-Id: I816e3b910de64d0f0f0ddc2398805c63263191e8

Reduce the number of sync points by letting each thread
continue imediatly with a new MB row.
Better multicore scaling, improves performance by 5-20% on ARM multicore.

Change-Id: Ic97e4d1c4886a842c85dd3539a93cb217188ed1b

Change-Id: Id1d4bbe257cd126bb5f44347b896ddb659724f0b

from vp8cx_encode_intra_macro_block.  prediction_error is used when
deciding if a frame should be a keyframe.  After reviewing this with
Yaowu, it was pointed out that vp8cx_encode_intra_macro_block
is only called for keyframes, so the accumulation is unnecessary.

Change-Id: Id79dc81b80d4f5d124f3a0dba1b923887e2e1ec8

last_auto_filter_prediction_error is not really used.

Change-Id: Ic6e56c4076bbd250ef783ee1be46964c85f62864

vp8_pick_intra4x4mby_modes uses the passed in distortion
for an early breakout.  The best distortion was never saved
and the distortion for TM_PRED was always used.

Change-Id: Idbaf73027408a4bba26601713725191a5d7b325e

min_q is required to be <= max_q.

Change-Id: I28eccf96df3b52a94913762b54c4fbe0d021ce5e

Conflicts:
	configure

Change-Id: I74063d859de31a62285c8908bcb1821e050b9f3c

Conflicts:
	configure

Change-Id: I18c2292256d2387ff09da209aa9cf6891e1864a0

Previously, the DC check is to make sure there is no code-able
DC shift for quantizer Q0, which has been verified rather
conservative. This commit changes the criteria to have two
components, DC and AC, to address the conservativeness. First,
it checks if all AC energy is enough to contribute a single
non-zero quantized AC coefficient. Second, for DC, the decision
to skip further considers two possible scenarios: 1. There is
no code-able 2nd order DC coefficient at all; 2 The residue is
relatively flat, but the uniform DC change is very small, i.e.
less than 1/2 gray level per pixel.

Comparing to previous criteria, the new criteria is about 10%
to 15% faster in encoding time with a very small quality loss.
(threshold ~1000 and quality range 33db-45db)

It should be noted that this commit enables "automatic" static
threshold for encodebreakout if a non-zero small value is passed
in to encoder.

Change-Id: I0f77719a1ac2c2dfddbd950d84920df374515ce3

Applied same method used in vp8_rd_pick_inter_mode() to improve
the accuracy of MV prediction.

Change-Id: Ia50ae26208b18482695601f32febd99fe89fbc17