The libaom package contains a reference version of the Alliance for Open Media video codec. This codec is a patent free alternative to H.265, and is starting to be used throughout the internet.
![[Notat]](../images/note.png)
En internettforbindelse er nødvendig for noen tester av denne pakken. Systemsertifikatlageret må kanskje konfigureres med make-ca-1.16.1 før du tester denne pakken.
Dette kan ta litt tid å bygge. Gjør gjerne noe annet mens dette bygges.
Download (HTTP): https://storage.googleapis.com/aom-releases/libaom-3.12.1.tar.gz
Install libaom by running the following commands:
mkdir aom-build &&
cd aom-build &&
cmake -D CMAKE_INSTALL_PREFIX=/usr \
-D CMAKE_BUILD_TYPE=Release \
-D BUILD_SHARED_LIBS=1 \
-D ENABLE_DOCS=no \
-G Ninja .. &&
ninja
To test the results, issue: ninja testdata && ninja runtests. Note that the tests take an extremely long time to run.
Now, as the root user:
ninja install && rm -v /usr/lib/libaom.a
Install lib32-libaom by running the following commands:
rm -rf * &&
CC="gcc -m32" CXX="g++ -m32" \
PKG_CONFIG_PATH=/usr/lib32/pkgconfig \
cmake -D CMAKE_INSTALL_PREFIX=/usr \
-D CMAKE_INSTALL_LIBDIR=lib32 \
-D CMAKE_BUILD_TYPE=Release \
-D BUILD_SHARED_LIBS=1 \
-D ENABLE_DOCS=no \
-G Ninja .. &&
ninja
Now, as the root user:
DESTDIR=$PWD/DESTDIR ninja install && cp -vR DESTDIR/usr/lib32/* /usr/lib32 && rm -v /usr/lib32/libaom.a && rm -rf DESTDIR && ldconfig
For en fullstendig liste over alternativer og verdier, sørg for at du er i en byggemappe, og kjør deretter cmake -LAH ...
-D BUILD_SHARED_LIBS=1:
This switch builds shared versions of the libraries.
-D ENABLE_DOCS=no: This
switch disables building the documentation because doxygen is not installed.