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jzern Revert "Revert "Revert "Loopfilter MultiThread Optimization"""
This reverts commit bf62990.

segfaults, causes an assertion failure with corrupt input:
get_uv_tx_size: Assertion `mi->sb_type < BLOCK_8X8 ||
ss_size_lookup[mi->sb_type][pd->subsampling_x][pd->subsampling_y] !=
BLOCK_INVALID

BUG=webm:1562

Change-Id: I05a711cad3d8e7f1a8e64422b4356bdf4edb3d12
Latest commit 3448987 Sep 22, 2018
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build/make rtcd: fix --required flag Aug 29, 2018
examples cosmetics: normalize include guards Sep 15, 2018
test Revert "Revert "Revert "Loopfilter MultiThread Optimization""" Sep 22, 2018
third_party Revert "third_party/googletest: update to v1.8.1" Sep 21, 2018
tools Use different corner detection score Sep 20, 2018
vp8 vp8: exit with bad fragment size in decoder. Sep 21, 2018
vp9 Revert "Revert "Revert "Loopfilter MultiThread Optimization""" Sep 22, 2018
vpx cosmetics: normalize include guards Sep 15, 2018
vpx_dsp sanitizer: fix unaligned loads Sep 21, 2018
vpx_mem Merge "cosmetics: normalize include guards" Sep 18, 2018
vpx_ports cosmetics: normalize include guards Sep 15, 2018
vpx_scale cosmetics: normalize include guards Sep 15, 2018
vpx_util Revert "Revert "Revert "Loopfilter MultiThread Optimization""" Sep 22, 2018
.clang-format update .clang-format for v5.0.0 Jan 23, 2018
.gitattributes Initial WebM release May 18, 2010
.gitignore Add vp9_spatial_svc_encoder to .gitignore. Oct 31, 2016
.mailmap Release 1.7.0 Mandarin Duck Jan 24, 2018
AUTHORS Release 1.7.0 Mandarin Duck Jan 24, 2018
CHANGELOG Release 1.7.0 Mandarin Duck Jan 24, 2018
LICENSE Update LICENSE to reflect WebM authors Nov 11, 2011
PATENTS PATENTS: fix a typo: constitutes -> constitute Apr 25, 2015
README Remove ppc64 (big endian) from configure May 11, 2018
args.c Cast strto[u]l down Sep 27, 2016
args.h cosmetics: normalize include guards Sep 15, 2018
codereview.settings update codereview.settings Apr 5, 2018
configure Add non-greedy-mv experimental flag Sep 5, 2018
docs.mk configure: remove php test May 13, 2014
examples.mk Refactor: move svc example files to from vpx/ to examples/ Aug 16, 2018
ivfdec.c Remove extra line in warnings in ivfdec.c May 10, 2018
ivfdec.h cosmetics: normalize include guards Sep 15, 2018
ivfenc.c top-level: apply clang-format Jul 19, 2016
ivfenc.h cosmetics: normalize include guards Sep 15, 2018
keywords.dox Initial WebM release May 18, 2010
libs.doxy_template remove obsolete doxygen tags Jan 24, 2018
libs.mk Refactor: move svc example files to from vpx/ to examples/ Aug 16, 2018
mainpage.dox Fix obvious misses in doxygen mainpage Jan 15, 2015
md5_utils.c top-level: apply clang-format Jul 19, 2016
md5_utils.h cosmetics: normalize include guards Sep 15, 2018
rate_hist.c rate_hist: add parameter validation Mar 23, 2017
rate_hist.h cosmetics: normalize include guards Sep 15, 2018
solution.mk Remove asm offset dependencies Nov 7, 2014
tools.mk add 10 and 12 bit to tiny_ssim Nov 13, 2017
tools_common.c top-level: apply clang-format Jul 19, 2016
tools_common.h cosmetics: normalize include guards Sep 15, 2018
usage.dox usage.dox: fix encoder/decoder subpage list indent Mar 14, 2015
usage_cx.dox usage.dox: fix encoder/decoder subpage list indent Mar 14, 2015
usage_dx.dox Initial WebM release May 18, 2010
video_common.h cosmetics: normalize include guards Sep 15, 2018
video_reader.c top-level: apply clang-format Jul 19, 2016
video_reader.h cosmetics: normalize include guards Sep 15, 2018
video_writer.c top-level: apply clang-format Jul 19, 2016
video_writer.h cosmetics: normalize include guards Sep 15, 2018
vpxdec.c vpxdec: only call row-mt control for vp9 Jul 26, 2018
vpxenc.c Add vpxenc control to turn on/off tpl model Aug 14, 2018
vpxenc.h cosmetics: normalize include guards Sep 15, 2018
vpxstats.c top-level: apply clang-format Jul 19, 2016
vpxstats.h cosmetics: normalize include guards Sep 15, 2018
warnings.c top-level: apply clang-format Jul 19, 2016
warnings.h cosmetics: normalize include guards Sep 15, 2018
webmdec.cc webm_read_frame: avoid NULL dereference Apr 25, 2017
webmdec.h cosmetics: normalize include guards Sep 15, 2018
webmenc.cc webmenc: remove unused 'fps' parameter Sep 13, 2016
webmenc.h cosmetics: normalize include guards Sep 15, 2018
y4menc.c vpx_image: remove unused image formats Apr 9, 2018
y4menc.h cosmetics: normalize include guards Sep 15, 2018
y4minput.c vpx_image: remove unused image formats Apr 9, 2018
y4minput.h cosmetics: normalize include guards Sep 15, 2018

README

README - 24 January 2018

Welcome to the WebM VP8/VP9 Codec SDK!

COMPILING THE APPLICATIONS/LIBRARIES:
  The build system used is similar to autotools. Building generally consists of
  "configuring" with your desired build options, then using GNU make to build
  the application.

  1. Prerequisites

    * All x86 targets require the Yasm[1] assembler be installed[2].
    * All Windows builds require that Cygwin[3] be installed.
    * Building the documentation requires Doxygen[4]. If you do not
      have this package, the install-docs option will be disabled.
    * Downloading the data for the unit tests requires curl[5] and sha1sum.
      sha1sum is provided via the GNU coreutils, installed by default on
      many *nix platforms, as well as MinGW and Cygwin. If coreutils is not
      available, a compatible version of sha1sum can be built from
      source[6]. These requirements are optional if not running the unit
      tests.

    [1]: http://www.tortall.net/projects/yasm
    [2]: For Visual Studio the base yasm binary (not vsyasm) should be in the
         PATH for Visual Studio. For VS2017 it is sufficient to rename
         yasm-<version>-<arch>.exe to yasm.exe and place it in:
         Program Files (x86)/Microsoft Visual Studio/2017/<level>/Common7/Tools/
    [3]: http://www.cygwin.com
    [4]: http://www.doxygen.org
    [5]: http://curl.haxx.se
    [6]: http://www.microbrew.org/tools/md5sha1sum/

  2. Out-of-tree builds
  Out of tree builds are a supported method of building the application. For
  an out of tree build, the source tree is kept separate from the object
  files produced during compilation. For instance:

    $ mkdir build
    $ cd build
    $ ../libvpx/configure <options>
    $ make

  3. Configuration options
  The 'configure' script supports a number of options. The --help option can be
  used to get a list of supported options:
    $ ../libvpx/configure --help

  4. Compiler analyzers
  Compilers have added sanitizers which instrument binaries with information
  about address calculation, memory usage, threading, undefined behavior, and
  other common errors. To simplify building libvpx with some of these features
  use tools/set_analyzer_env.sh before running configure. It will set the
  compiler and necessary flags for building as well as environment variables
  read by the analyzer when testing the binaries.
    $ source ../libvpx/tools/set_analyzer_env.sh address

  5. Cross development
  For cross development, the most notable option is the --target option. The
  most up-to-date list of supported targets can be found at the bottom of the
  --help output of the configure script. As of this writing, the list of
  available targets is:

    arm64-android-gcc
    arm64-darwin-gcc
    arm64-linux-gcc
    armv7-android-gcc
    armv7-darwin-gcc
    armv7-linux-rvct
    armv7-linux-gcc
    armv7-none-rvct
    armv7-win32-vs11
    armv7-win32-vs12
    armv7-win32-vs14
    armv7-win32-vs15
    armv7s-darwin-gcc
    armv8-linux-gcc
    mips32-linux-gcc
    mips64-linux-gcc
    ppc64le-linux-gcc
    sparc-solaris-gcc
    x86-android-gcc
    x86-darwin8-gcc
    x86-darwin8-icc
    x86-darwin9-gcc
    x86-darwin9-icc
    x86-darwin10-gcc
    x86-darwin11-gcc
    x86-darwin12-gcc
    x86-darwin13-gcc
    x86-darwin14-gcc
    x86-darwin15-gcc
    x86-darwin16-gcc
    x86-iphonesimulator-gcc
    x86-linux-gcc
    x86-linux-icc
    x86-os2-gcc
    x86-solaris-gcc
    x86-win32-gcc
    x86-win32-vs10
    x86-win32-vs11
    x86-win32-vs12
    x86-win32-vs14
    x86-win32-vs15
    x86_64-android-gcc
    x86_64-darwin9-gcc
    x86_64-darwin10-gcc
    x86_64-darwin11-gcc
    x86_64-darwin12-gcc
    x86_64-darwin13-gcc
    x86_64-darwin14-gcc
    x86_64-darwin15-gcc
    x86_64-darwin16-gcc
    x86_64-iphonesimulator-gcc
    x86_64-linux-gcc
    x86_64-linux-icc
    x86_64-solaris-gcc
    x86_64-win64-gcc
    x86_64-win64-vs10
    x86_64-win64-vs11
    x86_64-win64-vs12
    x86_64-win64-vs14
    x86_64-win64-vs15
    generic-gnu

  The generic-gnu target, in conjunction with the CROSS environment variable,
  can be used to cross compile architectures that aren't explicitly listed, if
  the toolchain is a cross GNU (gcc/binutils) toolchain. Other POSIX toolchains
  will likely work as well. For instance, to build using the mipsel-linux-uclibc
  toolchain, the following command could be used (note, POSIX SH syntax, adapt
  to your shell as necessary):

    $ CROSS=mipsel-linux-uclibc- ../libvpx/configure

  In addition, the executables to be invoked can be overridden by specifying the
  environment variables: CC, AR, LD, AS, STRIP, NM. Additional flags can be
  passed to these executables with CFLAGS, LDFLAGS, and ASFLAGS.

  6. Configuration errors
  If the configuration step fails, the first step is to look in the error log.
  This defaults to config.log. This should give a good indication of what went
  wrong. If not, contact us for support.

VP8/VP9 TEST VECTORS:
  The test vectors can be downloaded and verified using the build system after
  running configure. To specify an alternate directory the
  LIBVPX_TEST_DATA_PATH environment variable can be used.

  $ ./configure --enable-unit-tests
  $ LIBVPX_TEST_DATA_PATH=../libvpx-test-data make testdata

CODE STYLE:
  The coding style used by this project is enforced with clang-format using the
  configuration contained in the .clang-format file in the root of the
  repository.

  Before pushing changes for review you can format your code with:
  # Apply clang-format to modified .c, .h and .cc files
  $ clang-format -i --style=file \
    $(git diff --name-only --diff-filter=ACMR '*.[hc]' '*.cc')

  Check the .clang-format file for the version used to generate it if there is
  any difference between your local formatting and the review system.

  See also: http://clang.llvm.org/docs/ClangFormat.html

SUPPORT
  This library is an open source project supported by its community. Please
  email webm-discuss@webmproject.org for help.