Originally we can have a BRF right before an overlay frame (in
display order), which might be unnecessary since we already has a
quality backward reference frame (ARF).
This patch avoids such a coding structure and improves the RD
performance by 0.086% in Avg in the lowres dataset, and 0.153 in
Avg in the midres dataset.

In the lowres dataset, significant gains are obtained for the
following sequences:

mobisode2_240p: 0.563%
keiba_240p: 0.440%
bus_cif: 0.336%
soccer_cif: 0.333%

And the performance drops only in the following four video sequences:

motherdaughter_cif: 0.028%
bqsquare_240p: 0.017%
basketballpass_240p: 0.015%
bowing_cif: 0.006%

Change-Id: Ic94f648ba8e52eb0014933d484fb247610a9ae05

Manually cherry-picked following commits from AOMedia git repository:
bb2727c2 Sort includess for "clpf.h"
c297fd00 Add quantisation matrix range parameters.
0527894f Add encoder option and signaling for quant matrix control.
4106232b Turn off trellis coding for quantization matrices.
4017fca3 Modify tests to allow quantization matrices.
1c122c24 Add quant and dequant functions for new quant matrices.
95a89994 Enable CLPF
f72782bb Fix a build issue
73bae509 Add quantisation matrices and selection functions
33208d20 Added support for constrained low pass filter (CLPF)

Change-Id: I60fc1ee1ac40e6b9d1d00affd97547ee5d5dd6be

This was causing a compiler warning from -Wcast-qual.

Change-Id: Ie525ffe20be4f38ced68fb0c4141e36400eb0717

* changes:
  remove tools/vpx-style.sh
  README: add a note about clang-format

Adds forward, inverse transforms and scan orders.

Change-Id: Iab6994f4b0ef65e660b714d111b79b1c8172d6a8

The projected coordiantes in projectPointsTranslation were
being shifted by the incorrect precision.

Change-Id: If6040bea9e5187020d85c6095d85c7ff5786b7f9

update ftfy.sh to use clang-format

Change-Id: I8ac740c5b3842beed2b8878fbe506f381f4c57e4
(cherry picked from commit 958ae5af9c892e5328ec0363d1a69afbfe0e0907)

Change-Id: I835401e3befffcbc68e7d2bdd2fd556a19948e91
(cherry picked from commit 15f29ef0922c6584dea69ac75367edb2f6934bb3)

clang-format authored 8 years ago and James Zern committed 8 years ago

top-level *.cc were missed in the original change
debug_util.c was checked in with some warnings

Change-Id: I72999bf94d734ffc127bf6f96a8d17f9c313d5a0

clang-format authored 8 years ago and James Zern committed 8 years ago

Change-Id: I58a42ced5b8a4338524434ff3356850b89aa705a

clang-format authored 8 years ago and James Zern committed 8 years ago

Change-Id: I01d8241eba3ccaf4d06c00a51df2d17c126f6f9d

rather than sizeof(type)

Change-Id: I63755e4ca3810bec2d31013bebcc363c5c9f56ed

clang-format authored 8 years ago and James Zern committed 8 years ago

Change-Id: I1138fbeff5f63beb5c0de2c357793da12502d453

- On E5-2680, park_joy_1080p, 5 frames, baseline encoding time
  reduces about 0.8~1.0%.
- Credit goes to Erik Niemeyer (erik.a.niemeyer@intel.com).

Change-Id: I69f191d5a4e4b96a5f9ffd8286e484b69d565c01

Yi Luo authored 8 years ago and James Zern committed 8 years ago

fixes mix of malloc & delete[]

Change-Id: I89a1de0614234bf8b3dbe4aacfe71f75f39d08ff

clang-format authored 8 years ago and James Zern committed 8 years ago

Change-Id: Ie4d7ecb2f692c1c43eff1242e1f00e7fbae00e57

- Add unit tests to verify the bit-exact.
- Speed unit test, function improvement: about 8%-23%.
- On E5-2680, park_joy_1080p_12, 25 frames, --kf-max-dist=1
  encoding time improves from <1% to 3.5%

Change-Id: Ic16368885bb253db0200c3a6db143ab1a0b7fc26

clang-format authored 8 years ago and James Zern committed 8 years ago

Change-Id: Ib21077a85ded17823ab62e0b7fdf663ae3dbc05d

This is a debug tool used to detect bitstream error. On encoder side, it pushes
each bit and probability into a queue before the bit is written into the
Arithmetic coder. On decoder side, whenever a bit is read out from the
Arithmetic coder, it pops up the reference bit and probability from the queue as
well. If the two results do not match, this debug tool will report an error.
This tool can be used to pin down the bitstream error precisely. By combining
gdb's backtrace method, we can detect which module causes the bitstream error.

Change-Id: I133a4371fafdd48c488f2ca47f9e395676c401f2

clang-format authored 8 years ago and James Zern committed 8 years ago

Change-Id: I9654530a34a3d0691baeca9d62184cd7b9ac3b4c

Change-Id: I5a7bd3c2d0c7f6cf714367674f1d75510659b54d

There was a bug in the original set up for RATE_FACTOR_LEVELS, which
results that rate_factor_deltas for GF_ARF_STD is 2.00, instead of the
intentional value of 1.75, whereas for KF_STD is 0.00, instead of the
intentional value of 2.00.

Nevertheless, if simply fixing the bug as in the first patch, the RD
performance unexpectedly dropped by 0.143% in Avg bitrate using
Overall PSNR, especially for following sequences in lowres:

bridge_close_cif: dropped by 1.468%
container_cif: dropped by 2.140%
husky_cif: dropped by 0.826%
motherdaughter_cif: dropped by 0.798%
rasehorses_240p: dropped by 0.805%
students_cif: dropped by 1.411%

This indicates that we should boost up the value for GF_ARF_STD from
1.75 to at least to 2.00. After doing so, while still keeps 2.00 for
KF_STD, the new patch achieves a small gain of 0.15% for the baseline,
and a smaller gain of 0.06% for the experiment of ext-refs. Most
sequences keep the similar RD performance in lowres, except for the
following ones that obtain a bigger gain:

(1) Baseline:
container_cif: 1.628%
students_cif: 1.015%

(2) ext-refs
tennis_sif: 1.248%

Change-Id: I992f8f6a3e20f1b71ec52a1ddc969af4968b78d5

clang-format authored 8 years ago and James Zern committed 8 years ago

Change-Id: I514654a0704512fb44c7eef5dd045a5767df953a

* changes:
  vpx_dsp/: apply clang-format
  vpx/: apply clang-format
  top-level: apply clang-format
  examples: apply clang-format

Change-Id: I831214d16a5bbfdb86e24dbff8afe4ff4aeebdde