trinadh465/platform_external_libvpx_v1.4.0_cve-2023-5217C library for VP8/VP9 video encoding and decoding, with a focus on security patching for CVE-2023-5217.
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.
* 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
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
ppc32-darwin8-gcc
ppc32-darwin9-gcc
ppc32-linux-gcc
ppc64-darwin8-gcc
ppc64-darwin9-gcc
ppc64-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
universal-darwin8-gcc
universal-darwin9-gcc
universal-darwin10-gcc
universal-darwin11-gcc
universal-darwin12-gcc
universal-darwin13-gcc
universal-darwin14-gcc
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.
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 [email protected] for help.