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.
![[Note]](../images/note.png)
Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.
Download (HTTP): https://storage.googleapis.com/aom-releases/libaom-3.13.1.tar.gz
Download MD5 sum: d615c4dbe062fc307d70d7fb85b678b2
Download size: 6.0 MB
Estimated disk space required: 142 MB
Estimated build time: 0.8 SBU (with parallelism=4)
yasm-1.3.0 (or NASM-3.01)
NASM-3 made a change where the help screen now shows different text based on different parameters, instead of displaying all the info upfront. This package depends on all the information being there. Fix how this package gets that information to prevent a configuration failure with only NASM-3 installed:
patch -Np1 -i ../libaom-3.13.1-nasm3-1.patch
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
This package does not come with a working test suite.
Now, as the root user:
ninja install && rm -v /usr/lib/libaom.a
-D BUILD_SHARED_LIBS=1:
This switch builds shared versions of the libraries.
-D ENABLE_DOCS=no: This
switch disables building the documentation because it fails due to
an incompatibility with the latest version of Doxygen-1.15.0.
-D ENABLE_NASM=yes: Use this switch if
you have both yasm-1.3.0 and NASM-3.01 installed
and wish to use nasm instead of yasm.