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third_party Allow specifying a different prefix in x86inc.asm 2015-04-15 09:42:48 -04:00
tools Removing unused third-party libraries. 2014-05-22 12:46:22 -07:00
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vpx_util Revert "Fill buffer speed up" 2015-07-13 13:47:46 +00:00
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.gitignore Remove last remnants of obj_int_extract 2015-03-18 11:06:53 -07:00
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args.c Don't #define snprintf in VS 2015 or higher. 2015-05-27 18:28:25 -07:00
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CHANGELOG Add control to skip loop filter in VP9 decoder. 2015-06-05 10:07:09 -07:00
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ivfdec.c Reusing mem_get_le{16, 32} defined in vpx_ports/mem_opts.h. 2014-02-26 16:32:09 -08:00
ivfdec.h Adding video reader/writer APIs. 2014-02-05 20:34:51 -08:00
ivfenc.c Changing ivf_write_frame_header() function signature. 2014-01-29 17:57:21 -08:00
ivfenc.h Changing ivf_write_frame_header() function signature. 2014-01-29 17:57:21 -08:00
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PATENTS PATENTS: fix a typo: constitutes -> constitute 2015-04-24 20:24:02 -07:00
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README Remove claims of universal target support from the build system. 2015-05-12 19:16:49 -07:00
solution.mk Remove asm offset dependencies 2014-11-06 16:00:01 -08:00
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tools_common.h vpxenc: Add support for pixel aspect ratio. 2015-06-05 09:56:50 -07:00
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video_common.h Adding video reader/writer APIs. 2014-02-05 20:34:51 -08:00
video_reader.c Reusing mem_get_le{16, 32} defined in vpx_ports/mem_opts.h. 2014-02-26 16:32:09 -08:00
video_reader.h Adding video reader/writer APIs. 2014-02-05 20:34:51 -08:00
video_writer.c Adding video reader/writer APIs. 2014-02-05 20:34:51 -08:00
video_writer.h Adding video reader/writer APIs. 2014-02-05 20:34:51 -08:00
vpxdec.c vpxdec: cosmetics: break some long lines 2015-06-05 16:18:49 -07:00
vpxenc.c Expose params min-gf-interval/max-gf-interval 2015-07-06 12:24:59 -07:00
vpxenc.h Adds support of 440 content. 2014-10-01 16:51:48 -07:00
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vpxstats.h Adding sse_to_psnr function to tools_common.{h, c}. 2014-02-27 14:00:41 -08:00
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webmdec.cc webmdec: Fix for reaching eof in webm_guess_framerate 2015-04-07 11:04:51 -07:00
webmdec.h webmdec: Fix read_frame return value for calls after EOS 2015-03-30 12:58:26 -07:00
webmenc.cc vpxenc: Add support for pixel aspect ratio. 2015-06-05 09:56:50 -07:00
webmenc.h vpxenc: Add support for pixel aspect ratio. 2015-06-05 09:56:50 -07:00
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y4minput.h Adds support for reading and writing 10/12-bit y4m 2014-07-05 16:00:54 -07:00

README - 23 March 2015

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.
    * 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
    $ ../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. 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-darwin-gcc
    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
    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-vs7
    x86-win32-vs8
    x86-win32-vs9
    x86-win32-vs10
    x86-win32-vs11
    x86-win32-vs12
    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-vs8
    x86_64-win64-vs9
    x86_64-win64-vs10
    x86_64-win64-vs11
    x86_64-win64-vs12
    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.

  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/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

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