Alliance for Open Media Video Codec reference implementation (Mozilla branch)
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Guillaume Martres 930118c5c5 PVQ: Fix incorrect calculation of rd_stats
When PVQ is on, we reencode at the end of choose_tx_size_type_from_rd to
get the entropy contexts right, previously this was done using
txfm_rd_in_plane but this is different from the encodes done in the loop
which use txfm_yrd, the result is that rd_stats is set incorrectly at
the end of choose_tx_size_type_from_rd when PVQ is on.

Results on objective-1-fast with --limit=5:

   PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
-0.5803 | -1.0598 | -1.4565 |  -0.3377 | -0.8153 | -0.5934 |    -0.9943

See https://goo.gl/Hvv0E2

Change-Id: Iccc7b0afaff849f959a0084eb48dbb838bc3cb1a
2016-12-15 20:37:04 +00:00
aom Unconditionally define controls for experimental features 2016-12-14 17:56:11 +00:00
aom_dsp Add 2x4 and 4x2 variance functions 2016-12-15 20:19:19 +00:00
aom_mem aom_mem,align_addr: use ~ to create mask 2016-10-14 01:15:21 +00:00
aom_ports aom_ports: Fix build in Xcode 8. 2016-11-08 01:50:54 +00:00
aom_scale Enable global motion in high bit depth mode 2016-11-16 15:25:11 +00:00
aom_util Implement bitstream debug for daala_ec 2016-11-16 17:17:24 +00:00
av1 PVQ: Fix incorrect calculation of rd_stats 2016-12-15 20:37:04 +00:00
build Revert "Add framework for testing intrinsics" 2016-12-09 22:23:55 +00:00
examples change to use AOMedia copyright notice 2016-11-29 00:01:36 +00:00
test Fix TestSuperframeIndexIsOptional to work with daala_ec. 2016-12-15 12:44:39 -05:00
third_party Update readme for gtest 2016-10-14 01:15:32 +00:00
tools Add the tool used to generate the constrained tokenset. 2016-10-12 17:41:01 -07:00
.clang-format .clang-format: update to 3.8.1 2016-09-17 11:37:44 -07:00
.gitattributes
.gitignore Add lossless_encoder example from libvpx 2016-09-13 00:28:08 +00:00
.mailmap
AUTHORS Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
CHANGELOG Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
CMakeLists.txt cmake: Add libyuv support 2016-11-11 16:04:42 +00:00
LICENSE Use AOMedia's Patents and LICENSE files 2016-09-06 16:09:03 -07:00
PATENTS Use AOMedia's Patents and LICENSE files 2016-09-06 16:09:03 -07:00
README LIBVPX_TEST_DATA_PATH -> LIBAOM_TEST_DATA_PATH 2016-10-12 08:26:44 -07:00
aomdec.c aomdec: remove use of fileno() 2016-12-13 02:47:28 +00:00
aomenc.c Remove obsolete control AOME_SET_ARNR_TYPE and command line flag 2016-12-13 23:23:38 +00:00
aomenc.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
aomstats.c Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
aomstats.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
args.c Include fix: use aom_integer.h 2016-10-12 08:27:00 -07:00
args.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
codereview.settings change the host and server urls 2016-03-31 14:04:13 -07:00
configure Reverting the mandatory use of ans with ext_tile. 2016-12-15 19:03:35 +00:00
docs.mk change to use aomedia copyright notice 2016-09-23 15:37:36 -07:00
examples.mk minor format fix 2016-09-23 15:37:46 -07:00
ivfdec.c Fix: correct framerate for 25Hz IVF file 2016-12-01 19:51:29 +00:00
ivfdec.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
ivfenc.c Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
ivfenc.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
keywords.dox
libs.doxy_template Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
libs.mk LIBVPX_TEST_DATA_PATH -> LIBAOM_TEST_DATA_PATH 2016-10-12 08:26:44 -07:00
mainpage.dox Port renaming changes from AOMedia 2016-08-31 18:19:03 -07:00
md5_utils.c Add #undef AOM_NO_UNSIGNED_OVERFLOW_CHECK 2016-10-12 00:43:47 +00:00
md5_utils.h
rate_hist.c Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
rate_hist.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
solution.mk Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
tools_common.c Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
tools_common.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
usage.dox Port renaming changes from AOMedia 2016-08-31 18:19:03 -07:00
usage_cx.dox Port renaming changes from AOMedia 2016-08-31 18:19:03 -07:00
usage_dx.dox Port renaming changes from AOMedia 2016-08-31 18:19:03 -07:00
video_common.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
video_reader.c Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
video_reader.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
video_writer.c Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
video_writer.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
warnings.c Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
warnings.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
webmdec.cc Remove unused buffer_size 2016-09-29 19:11:26 +00:00
webmdec.h Remove unused buffer_size 2016-09-29 19:11:26 +00:00
webmenc.cc Add compiler warning flag -Wextra and fix related warnings. 2016-10-20 15:49:16 -07:00
webmenc.h Add compiler warning flag -Wextra and fix related warnings. 2016-10-20 15:49:16 -07:00
y4menc.c Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
y4menc.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
y4minput.c Change to use aom copyright notice 2016-09-02 08:22:07 -07:00
y4minput.h Change to use aom copyright notice 2016-09-02 08:22:07 -07:00

README

README - 23 March 2015

Welcome to the WebM VP8/AV1 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.
    * All Windows builds require that Cygwin[2] be installed.
    * Building the documentation requires Doxygen[3]. If you do not
      have this package, the install-docs option will be disabled.
    * Downloading the data for the unit tests requires curl[4] 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[5]. These requirements are optional if not running the unit
      tests.

    [1]: http://www.tortall.net/projects/yasm
    [2]: http://www.cygwin.com
    [3]: http://www.doxygen.org
    [4]: http://curl.haxx.se
    [5]: 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
    $ ../libaom/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:
    $ ../libaom/configure --help

  4. 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:

    armv6-linux-rvct
    armv6-linux-gcc
    armv6-none-rvct
    arm64-darwin-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
    armv7s-darwin-gcc
    mips32-linux-gcc
    mips64-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-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_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-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
    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- ../libaom/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.

  5. 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/AV1 TEST VECTORS:
  The test vectors can be downloaded and verified using the build system after
  running configure. To specify an alternate directory the
  LIBAOM_TEST_DATA_PATH environment variable can be used.

  $ ./configure --enable-unit-tests
  $ LIBAOM_TEST_DATA_PATH=../-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
  please email webm-discuss@webmproject.org for help.