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This reverts commit d76032ae.

breaks 32-bit builds

Change-Id: If6266ec2a405b5a21d615112f0f37e8a71193858

Change-Id: I6a360a12e8da8cdcb8a779647512591612d64f31

Change on affects 1 pass CBR.
On key frame, temporal layer_id is reset to 0 for 1 pass CBR,
but since "layer" is reset, the svc.layer_context[layer].is_key_frame
was not correspondingly set properly.

Change-Id: I08f6da0a55ac7429ccfbaddfb7be14479e43543b

Found with clang -fsanitize=integer

Change-Id: I17cb2166c06ff463abfaf9b0e6bc749d0d6fdf94

Found with clang -fsanitize=integer

Change-Id: I2538e7483cb2d5f06bceecbd3326bdd88bfecfa1

Change-Id: Ie2101e362aeb01681313adf67596bc6b479e873e

Modify h_predictor_4x4 with XMM registers.
Speed up by ~25% in ./test_intra_pred_speed.

Change-Id: Id01c34c48e75b9d56dfc2e93af12cf0c0326a279

Coding gain on derflr drops to +1.83%.

Change-Id: If68c429f09422a70513d9f1e8e36e10c928e034a

tm_predictor_4x4 is implemented with SSE2 using XMM registers.
Speed up by ~25% in ./test_intra_pred_speed.

Change-Id: I25074b78d476a2cb17f81cf654bdfd80df2070e0

Existing condition only applied to temporal layers.

Change-Id: Icef20a59d0afc61d4e14dea01aff4786fa9e41ae

Change-Id: Ib63062a52c688e65bae5eb0052ce69d73d96c9c5

Change-Id: Ic81f38998fb1b8d33f5a5d7424c2c41002786cef

Remove MISC_FIXES flags except for the changes on MV precision, which
has a 0.1% performance drop.

On derflr, the impact is -0.012%.

Change-Id: I0a74e5a212dd0cb827192a318c92a714c9681e45

Change-Id: Ieec4a7be5945dc6de192e2d8292ab978baf47f53
(cherry picked from commit 20962964)

Change-Id: Ia7680ddf00dd50dd66bbb5753bae30b937988800

Small changes to the best quality default speed trade off.
Some speedup settings are worth while even for best quality as they
have only a very small impact on quality but a significant impact on
encode time.

These changes give as much as a further 50-60% increase in encode
speed for my test animations clip with minimal impact on quality.

For this sequence these changes improve the best quality encode  speed
to about the same level as good quality speed 0 in Q3 2015 whilst
retaining the large quality gain of over 1 db

For many natural videos though the quality difference from good 0
to best is much smaller.

Change-Id: I28b3840009d77e129817a78a7c41e29cb03e1132

Reset the effective range of inter_tx_size, instead of the entire
array in the rate-distortion optimization loop.

Change-Id: Id453fbd6dddfe69f4e451ba8518c083326d5dd53

Change-Id: I5a4f1f7b9de20fbfc28cb743dcd29c0eeca736f8