In real time encoding, we enable encode_breakout to make encoding
fast. A speed feature "use_encode_breakout" is defined to set
encode_breakout thresholds for different speeds.

However, currently, static_thresh is an encoder option. The encode_
breakout can be turned off if user sets static_thresh=0 specifically.

The rtc set borg test result: (need to set --static_thresh=1)
speed -5, psnr loss -3.543%;
speed -4, psnr loss -2.358%;
speed -3, psnr loss -0.771%.

Encoding speed test:
speed -5, 11% - 60% speedup;
speed -4, 5.5% - 28% speedup;
speed -3, 0.8% - 7% speedup.

Change-Id: Icde592ffbe77eac7446f872a2e9eb2051733677b

Frank is going to fix it soon, disabling for now.

Change-Id: Ifb7092d7db5af01bde62897af189fd620b7bbdf3

Silences MSVC warning.

Change-Id: I43191cdd8f0231b259ec091be24325ec99d2e962

Change-Id: I2c47f0ab13de82de8833c3f134e5f3c74394374f

This commit moves unnecessary mode_info update steps out of inter
mode test loop.

Change-Id: I3705450c44cda060021f4fd76c34f1b20d11658b

Use frame_parameter_update to precisely describe the functionality.

Change-Id: Ia9a55ba8efef7b987e30d949dd00ac716189bdb9

Update filter_1dfunction definition to match usage.

Change-Id: Ie3cae13dc1ec3f5838c5f29d1c76a1a98a9217fa

Some parameter changes and fixes on one-pass rate control.
derfraw300 is now only 10% below 2-pass speed 0 rate control.

Change-Id: I1940eef8a5a035dc18e71b880d5e00cabd1f01b9

This CL changes libvpx to call a function when a frame buffer
is needed for decode. Libvpx will call a release callback when
no other frames reference the frame buffer. This CL adds a
default implementation of the frame buffer callbacks. Currently
only VP9 is supported. A future CL will add support for
applications to supply their own frame buffer callbacks.

Change-Id: I1405a320118f1cdd95f80c670d52b085a62cb10d

Function encode_rtc_frame_internal() and encode_frame_internal() only
differed by a couple of speed features, this commit relocation those
difference into the setup of speed features and merged two functions
into one to remove duplication.

It also fixed a subtle bug super_fast_rtc was used before it was
initialized.

Change-Id: I234a5a1d11a4450930e5b4943dbab434208d5030

Change-Id: I06e082a18dbcc6e126cf288ee769c1480e3f2f4d

-Properly set the average frame size for each layer.

-Allow each layer to update its average/last Q stats after encoding.

-Initialize for some layer context variables.

Change-Id: Iaa37d144fcf4f30ff4283a4e8db8b9ca8bf4c815

Change-Id: I467b28346a0d8d4d8b96d6c05fc39c34eec26e5c