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AUTHORS29-Aug-20175.5 KiB

build/29-Aug-20174 KiB

CHANGELOG29-Aug-201727 KiB

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libs.mk29-Aug-201722.2 KiB

LICENSE29-Aug-20171.5 KiB

mainpage.dox29-Aug-20171.5 KiB

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md5_utils.h29-Aug-20171.4 KiB

PATENTS29-Aug-20171.4 KiB

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README29-Aug-20175 KiB

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video_common.h29-Aug-2017647

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vpxdec.c29-Aug-201734.2 KiB

vpxenc.c29-Aug-201781.8 KiB

vpxenc.h29-Aug-20171.4 KiB

vpxstats.c29-Aug-20172.7 KiB

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warnings.c29-Aug-20173.4 KiB

warnings.h29-Aug-2017992

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README

1README - 26 January 2017
2
3Welcome to the WebM VP8/VP9 Codec SDK!
4
5COMPILING THE APPLICATIONS/LIBRARIES:
6  The build system used is similar to autotools. Building generally consists of
7  "configuring" with your desired build options, then using GNU make to build
8  the application.
9
10  1. Prerequisites
11
12    * All x86 targets require the Yasm[1] assembler be installed.
13    * All Windows builds require that Cygwin[2] be installed.
14    * Building the documentation requires Doxygen[3]. If you do not
15      have this package, the install-docs option will be disabled.
16    * Downloading the data for the unit tests requires curl[4] and sha1sum.
17      sha1sum is provided via the GNU coreutils, installed by default on
18      many *nix platforms, as well as MinGW and Cygwin. If coreutils is not
19      available, a compatible version of sha1sum can be built from
20      source[5]. These requirements are optional if not running the unit
21      tests.
22
23    [1]: http://www.tortall.net/projects/yasm
24    [2]: http://www.cygwin.com
25    [3]: http://www.doxygen.org
26    [4]: http://curl.haxx.se
27    [5]: http://www.microbrew.org/tools/md5sha1sum/
28
29  2. Out-of-tree builds
30  Out of tree builds are a supported method of building the application. For
31  an out of tree build, the source tree is kept separate from the object
32  files produced during compilation. For instance:
33
34    $ mkdir build
35    $ cd build
36    $ ../libvpx/configure <options>
37    $ make
38
39  3. Configuration options
40  The 'configure' script supports a number of options. The --help option can be
41  used to get a list of supported options:
42    $ ../libvpx/configure --help
43
44  4. Cross development
45  For cross development, the most notable option is the --target option. The
46  most up-to-date list of supported targets can be found at the bottom of the
47  --help output of the configure script. As of this writing, the list of
48  available targets is:
49
50    arm64-android-gcc
51    arm64-darwin-gcc
52    arm64-linux-gcc
53    armv7-android-gcc
54    armv7-darwin-gcc
55    armv7-linux-rvct
56    armv7-linux-gcc
57    armv7-none-rvct
58    armv7-win32-vs11
59    armv7-win32-vs12
60    armv7-win32-vs14
61    armv7-win32-vs15
62    armv7s-darwin-gcc
63    armv8-linux-gcc
64    mips32-linux-gcc
65    mips64-linux-gcc
66    sparc-solaris-gcc
67    x86-android-gcc
68    x86-darwin8-gcc
69    x86-darwin8-icc
70    x86-darwin9-gcc
71    x86-darwin9-icc
72    x86-darwin10-gcc
73    x86-darwin11-gcc
74    x86-darwin12-gcc
75    x86-darwin13-gcc
76    x86-darwin14-gcc
77    x86-darwin15-gcc
78    x86-darwin16-gcc
79    x86-iphonesimulator-gcc
80    x86-linux-gcc
81    x86-linux-icc
82    x86-os2-gcc
83    x86-solaris-gcc
84    x86-win32-gcc
85    x86-win32-vs10
86    x86-win32-vs11
87    x86-win32-vs12
88    x86-win32-vs14
89    x86-win32-vs15
90    x86_64-android-gcc
91    x86_64-darwin9-gcc
92    x86_64-darwin10-gcc
93    x86_64-darwin11-gcc
94    x86_64-darwin12-gcc
95    x86_64-darwin13-gcc
96    x86_64-darwin14-gcc
97    x86_64-darwin15-gcc
98    x86_64-darwin16-gcc
99    x86_64-iphonesimulator-gcc
100    x86_64-linux-gcc
101    x86_64-linux-icc
102    x86_64-solaris-gcc
103    x86_64-win64-gcc
104    x86_64-win64-vs10
105    x86_64-win64-vs11
106    x86_64-win64-vs12
107    x86_64-win64-vs14
108    x86_64-win64-vs15
109    generic-gnu
110
111  The generic-gnu target, in conjunction with the CROSS environment variable,
112  can be used to cross compile architectures that aren't explicitly listed, if
113  the toolchain is a cross GNU (gcc/binutils) toolchain. Other POSIX toolchains
114  will likely work as well. For instance, to build using the mipsel-linux-uclibc
115  toolchain, the following command could be used (note, POSIX SH syntax, adapt
116  to your shell as necessary):
117
118    $ CROSS=mipsel-linux-uclibc- ../libvpx/configure
119
120  In addition, the executables to be invoked can be overridden by specifying the
121  environment variables: CC, AR, LD, AS, STRIP, NM. Additional flags can be
122  passed to these executables with CFLAGS, LDFLAGS, and ASFLAGS.
123
124  5. Configuration errors
125  If the configuration step fails, the first step is to look in the error log.
126  This defaults to config.log. This should give a good indication of what went
127  wrong. If not, contact us for support.
128
129VP8/VP9 TEST VECTORS:
130  The test vectors can be downloaded and verified using the build system after
131  running configure. To specify an alternate directory the
132  LIBVPX_TEST_DATA_PATH environment variable can be used.
133
134  $ ./configure --enable-unit-tests
135  $ LIBVPX_TEST_DATA_PATH=../libvpx-test-data make testdata
136
137CODE STYLE:
138  The coding style used by this project is enforced with clang-format using the
139  configuration contained in the .clang-format file in the root of the
140  repository.
141
142  Before pushing changes for review you can format your code with:
143  # Apply clang-format to modified .c, .h and .cc files
144  $ clang-format -i --style=file \
145    $(git diff --name-only --diff-filter=ACMR '*.[hc]' '*.cc')
146
147  Check the .clang-format file for the version used to generate it if there is
148  any difference between your local formatting and the review system.
149
150  See also: http://clang.llvm.org/docs/ClangFormat.html
151
152SUPPORT
153  This library is an open source project supported by its community. Please
154  email webm-discuss@webmproject.org for help.
155
156