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Change-Id: I9261ded5fbba7a625d8224d91be296265a932410

Change-Id: Icd07ee241b1e36bb4c9e40e592bae259e65f2ce4

Change-Id: Id68736ffa71843b02ee3634edc525219d6e54d4f

Change-Id: I803bfc0b26804912ccd088d8a90a0f02fc55eed9

Change-Id: I80f81f6f4f15766f504c15f8c20258a84bbaa9ac

In the full-rd transform size search, we go through all transform
sizes to choose the one with best rd score. In this patch, an
early termination is added to stop the search once we see that the
smaller size won't give better rd score than the larger size. Also,
the search starts from largest transform size, then goes down to
smallest size.

A speed feature tx_size_search_breakout is added, which is turned off
at speed 0, and on for other speeds. The transform size search is
turned on at speed 1.

Borg test results:
1. At speed 1,
   derf set: psnr gain: 0.618%, ssim gain: 0.377%;
   stdhd set: psnr gain: 0.594%, ssim gain: 0.162%;
   No noticeable speed change.
3. At speed 2,
   derf set: psnr loss: 0.157%, ssim loss: 0.175%;
   stdhd set: psnr loss: 0.090%, ssim loss: 0.101%;
   speed gain: ~4%.

Change-Id: I22535cd2017b5e54f2a62bb6a38231aea4268b3f

This commit enables the encoder to record the location of the
center frame to generate alter reference frame. It then allows to
skip checking prediction modes of other reference frame types when
it comes to encode this frame.

The speed 3 runtime is reduced for the test sequences:
bus at CIF 1000 kbps, 9791 ms -> 9446 ms, i.e., 3.5% speed-up,
pedestrian at 1080p 2000 kbps, 184043 ms -> 175730 ms, i.e., 4.5%
speed-up.

No compression performance change observed.

Change-Id: Iacfde3bcc1445964e7a241f239bd6ea11cb94bd1

Change-Id: I156419fdf68056759a4cd4206cc829a00025ef78

oxcf->pass is used in all other places in similar contexts.

Change-Id: I9de3a5f24311838d5a6dc3dd470d258cb189ff59

This reverts commit 5509b7fd


Observed a big drop in compression quality and speed for speed 1 for a 360p test clip, revert this now for investigation.

Change-Id: If69dc8d77a225b34dc7907a9472e1a7a0a22762d

Change-Id: Ic53b2fb69e6eee600ea222e4d06424a1bbca496c

Johann authored Aug 15, 2014 and James Zern committed Aug 15, 2014

Change-Id: I5ca3400aec1f77fd92762d0c4fc86ba3694de1ca

Gordana Cmiljanovic authored Aug 07, 2014 and James Zern committed Aug 15, 2014

Change-Id: I78e27bf942b4a825543e76be25546b6458bad8b6

According to the current API spec we need to call vpx_codec_encode() until
vpx_codec_get_cx_data() returns NULL.

Change-Id: I4617f8042d50480a8f47b0b7114d4759fa566b14

Now everything is int64_t, so we don't need that function.

Change-Id: I7dd2023677b4943ecd968d68cc06f9d4862c3c3f

Add a speed feature to give the tighter partition search
range. Before partition search, calculate the histogram
of the partition sizes of the left, above and previous
co-located blocks of the current block. If the variance of
observed partition sizes is small enough, adjust the search
range around the mean partition size, which will be tigher.

The feature is currently turned on at speed 2. Experiments on
sample youtube clips show on average the runtime is reduced
by 3-7%.

For hard stdhd clips:
park_joy_1080p @ 15000kbps:       509251 ms -> 491953 ms (3.3%)
pedestrian_area_1080p @ 2000kbps: 223941 ms -> 214226 ms (4.3%)

The PSNR performance is changed:
derf: -0.112%
yt:   -0.099%
hd:   -0.090%
stdhd:-0.102%

Change-Id: Ie205ec5325bf92ec5676c243e30ba9d0adca10f2

- Fix nit: make test function definitions match test order.
- Fix nit: use elog instead of echo for env verification error.

Change-Id: I0eec078fc056a5bb2bd88d5833e43de48d77ec08

Change-Id: Ib52e1ce5aa4a22d70e124c3c29a92e00ffac50e4