liba52 is a free library for decoding ATSC A/52 (also known as AC-3) streams. The A/52 standard is used in a variety of applications, including digital television and DVD.
Development versions of BLFS may not build or run some packages properly if dependencies have been updated since the most recent stable versions of the book.
Download (HTTP): https://liba52.sourceforge.net/files/a52dec-0.7.4.tar.gz
Download MD5 sum: caa9f5bc44232dc8aeea773fea56be80
Download size: 236 KB
Estimated disk space required: 2.5 MB
Estimated build time: less than 0.1 SBU
User Notes: https://wiki.linuxfromscratch.org/blfs/wiki/liba52
Install liba52 by running the following commands:
./configure --prefix=/usr \ --mandir=/usr/share/man \ --enable-shared \ --disable-static \ CFLAGS="${CFLAGS:--g -O2} $([ $(uname -m) = x86_64 ] && echo -fPIC)" && make
To test the results, issue: make check.
Now, as the root
user:
make install && cp liba52/a52_internal.h /usr/include/a52dec && install -v -m644 -D doc/liba52.txt \ /usr/share/doc/liba52-0.7.4/liba52.txt
CFLAGS="-g -O2 ...
: This
sets CFLAGS to -g -O2 (which is the default) but then on x86_64
adds -fPIC. This is needed to compile liba52 on x86_64.
--disable-static
: This
switch prevents installation of static versions of the libraries.
cp liba52/a52_internal.h ...: Copying this header file into /usr/include/a52dec allows some other programs (such as xine-lib) to compile and link against a system installed liba52.