The issue was introduced by commit g9f37d149 with adding explicit
restrictions on reference-frame scale factors. The restriction
is checked against aligned-by-8 frame dimensions, not against
original ones. So, for example, frame of 35×35 actually can refer
to frame of 70×70, but the new check won't allow this. It will
compare 35 vs 72 (not 70), so 2x downscale limit will be exceeded.

Change-Id: Ic663693034440f64ac8312cbff9e1e773a921060

Change-Id: I61993946fe5cbcd7ebeb6302efd9538bff022e5a

The partition search for 4x4 blocks takes unnecessary steps to
reconstruct pixels and an extra partition type update. This commit
removes such operations. No visible compression/speed difference.
Thanks to Yue (yuec@) for finding this issue.

Change-Id: I3f83824aa3fd3717d63be0b280fa57258939a70a

The code fails the unit test. Speed comparisons to the C are invalid
because the code frequently didn't correctly extend the right and
bottom portions of the frame.

Reduce maximum frame size on ARM devices to avoid OOM

Change-Id: Ia664c86406f0bb8120fd7ad401f32d0bd44994fb

Change-Id: I5bfc965019815e631a2300eb29aa065fb2bc94aa

The source buffer is an aligned buffer in VP9. Added the alignment
to make it consistent with libvpx.

Change-Id: I3ebb9d2e8555ed532951da479dd5cbbb8812e02d

Change-Id: Ib39cc0218a1f232c0cde8e99ca3319c17274bd48

This commit turns on the existing vp9_get_prob function using
64 bit in the intermediate step. It fixes the ioc issue for 4K
above frame sizes (issue 828).

Change-Id: I9f627f3beca2c522f73b38fd2a3e7eefdff01a7c

The assignment of the variable mode_excluded in
vp9_rd_pick_inter_mode_sub8x8 takes redundant conditional jump.
This commit removes it.

Change-Id: Ie195fbe6e54ec2ade7093d562c456a2e93143704

Ensure consistent border extension by rounding uv_crop_* at image
creation time. Where it was rounded problems could arise with the right
and bottom extensions.
When padding = 32, y_width = 64, and y_crop_width = 63:
 (padding + width - crop_width + 1) / 2
 32 + 64 - 63 + 1 should equal 32 *but*
 32 + 1 + 1 equals 34 giving a right buffer of 17 instead of 16.
By calculating uv_crop_* earlier we round up at the appropriate time and
for the same values:
 (y_crop_width + 1) / 2
 63 + 1 / 2
 64
 (padding / 2) + uv_width - uv_crop_width
 16 + 16 - 16
 16

Change-Id: If866cd1b63444771440edb1432280ac83875969b

A previous change, https://gerrit.chromium.org/gerrit/#/c/70632,
introduced a size validation for reference frames to insuare the
input stream is a valid VP9 stream. However, the logic requiring
all reference frames have valid size turned out to be too strict.

In this commit, we modify the validation to require one of the
reference frame has valid dimension. In addition, the decoder
reports error whenever it detects the use of reference frame
with invalid scalig ratio.

Change-Id: If8efc312244087556cfe00f1fcbdff811268ebad

'auto_help' was added to Getopt::Long in 2.33
this isn't strictly necessary as an unrecognized option (--help) will
issue a warning and then print the usage

Change-Id: Ia757553a4e19d22a8eb70768a8866ab1a76a0eec

The patch:
https://gerrit.chromium.org/gerrit/#/c/70814/
changed the test that determined whether the context
frame buffers needed to be reallocated or not.

The code checked for a change in total frame area
to signal the need to reallocate context buffers.
However, the above_context buffer needs to be
resized i:xf only the width of the frame has increased.

Change-Id: Ib89d75651af252908144cf662578d84f16cf30e6

This should prevent confusion with the VP8 CONFIG_TEMPORAL_DENOISING and other
flags.

Change-Id: I1fe4e2977895b7966841d861ab74317ad875b6c8

Move txfm_rd_in_plane into choose_tx_size_from_rd and cleanup callers.

Change-Id: I1df2d7dc984802bd5e204cbe881ada0d75fbb3f7

Change-Id: I5978921ab1ccad6648a5bde6ad023c3e3430f5f4

--strip-unneeded causes SIGSEGV when accessing g_executable_path. So
test_libvpx crashes due to SIGSEGV in ::testing::InitGoogleTest().

OS/2, aout, strip v2.23.2

Change-Id: I2718d082447ee0d9ad0c021b9156c50e1ac085a6

1. Remove last reference flag for first frame upper layers in one pass mode.
2. Disable refresh golden frame flag for key frames.

Change-Id: I44ac1bd2c795169e4fbfdd078ea79a1d33a204d6

The value of mode_excluded has been properly set in
vp9_rd_pick_inter_mode_sb(). It is redundant to send it in
handle_inter_mode() and re-set the value again.

Change-Id: I408d4731f2f42e0bcf3ae62e85757717bb410471

This commit extends the chessboard pattern prediction filter search.
If the above and left blocks have the same prediction filter type,
the encoder will skip the prediction filter type search and use the
reference one.

The overall chessboard pattern prediction filter type search reduces
speed 3 runtime for hard clips. Experiments on park joy at 1080p
and 15000 kbps show that the runtime goes from 723265 ms to 65832 ms,
i.e., about 10% speed-up. Compression performance wise, it affects
the coding quality by

Change-Id: I880975497c7ad166532e9eea9bf46684d77ff327
derf:    -0.326%
yt:      -0.257%
hd:      -0.241%
stdhd:   -0.417%

Issue: https://code.google.com/p/webm/issues/detail?id=829

Change-Id: I580308f8aa4af194b5d8990a9692ebd18db68ee8

Use is_comp_pred to replace the use case of num_refs.

Change-Id: I4d0c1e14d5f728428a2ae3d293cd2b4a8b2f31d8