use uint32_t where appropriate, silences a few warnings

Change-Id: Ic362b08868b00f4828982757a7bcee081d50308d

find_mismatch() / compare_img(): const, whitespace

Change-Id: I1c65c2aac378535001720aca31e7437ee5492739

Implemented parallel loopfiltering, which uses existing tile-
decoding threads. Each thread works on one row, and when that row
is loopfiltered, it moves to next unattended row. To ensure the
correct filtering order, threads are synchronized and one
superblock is filtered only if the superblocks it depends on are
filtered already.

To reduce synchronization overhead and speed up the decoder, we use
nsync > 1 for high resolution.

Performance tests:
1. on desktop:
8-tile 4k video using 8 threads, speedup: 70% - 80%
4-tile HD video using 4 threads, speedup: ~35%
2. on mobile device(Nexus 7):
4-tile 1080p video using 4 threads, speedup: 18% - 25%
4-tile 1080p video using 2 threads, speedup: 10% - 15%

Change-Id: If54b4a11960dd706c22d5ad145ad94156031f36a

* Avoid unnecessary type erasure
* Prune unused/duplicate fields from struct rdcost_block_args
* Make struct rdcost_block_args a local

Change-Id: I4f1fd4837ccd028bbfe727191ee8d69f0463b7e5

When showing a previously decoded frame, i.e. when
show_existing_frame=1, the update of the
last_show_frame flag must be disabled.

This is to ensure that the last_show_frame flag
reflects the state of the flag for the immediately
previously decoded frame rather then the value that
was forced to ensure that a previously decoded frame
would be displayed.

This patch also adds a test vector to verify that the
display_existing_frame flag works as expected. Code
for generating the test vector can be found in this
patch:
https://gerrit.chromium.org/gerrit/#/c/68581/

(Bug originally reported by Alexander Voronov
<ru.xalba@gmail.com>).

Change-Id: I731d288fba02088959f7fcc87707137fffc6acf5

use mode instead

Change-Id: I419d7a2dc4b0714ca6ff723c5e824521c150c460

Added a constant to represent the minimum KF boost
rather than using the magic number 2000 in the code.

Change-Id: I9428b61f47d26312caff81c6f9ae8587df004791

So x86_64-win64-vs11 can build successfully.

Change-Id: If354c2ea3921fac8c9b413ed39223e70bc20c535

Some changes in 1ca11865 were mistakenly reverted by a later merge,
this commit re-instated the chanages from values to enums.

Change-Id: Ia6b01c31da584a1f612996e6432612c1295b9eaf

Change-Id: Iea7c9fa0726dbf9792eea79e6a05eb8a3c718d45

Change-Id: I08f45573e0b2195c09fb6aecacb4c57431a711ea

Replacing vpx_codec_cx_pkt argument with two separate pts and frame_size.

Change-Id: I7b37e379ee71342520cf08f03acfb4b499b2cbe4

obj_int_extract.bat
this project and target still need some work to allow for concurrent
builds to succeed from the command line.

Change-Id: Ieb3bddc54636e77519083c48573909616257eb23

Change-Id: I7ee89d6fc2afc20563d1784598ce83e29c0e6651

In this new mode, the size range is strictly determined by the min
and max partition size in neighborhood blocks.

Niklas720 encoding time at cpu-used -5 goes from 56250ms to 50676ms,
a 10% reduction.

Change-Id: I316b0e2ac967ff3fad57b28d69c0ec80b7d8b34e

Adding rate_hist.{h, c} files.

Change-Id: Iaa28af6b25ec8982966a7296a073d6017b3a7f96

Change-Id: If446225afbb49f6033c2a4516a37c377de6f70f7

Change-Id: Ic2ff6405f01fd43d07c5ee3b5e374909401115cc

Includes a few fixes and clean-ups that adds the ability
to use alt-ref frames in one-pass mode.
Whether alt-refs are actually used or not is controlled by a
macro USE_ALTREF_FOR_ONE_PASS in vp9_firstpass.c.

This first cut seems to improve derf by 15+% in 1-pass mode.
But further experiments with parameters are underway.

Change-Id: I78254421435478003367c788c7930d2dc4ee2816

Change-Id: Idd1acfcf8bb16a2ddb9c6c1c841a7741e90589d9

Change-Id: Ib3747c81db8cc89b5d7012db557411a3b49712aa