Beyond Linux® From Scratch - Version 7.5

Chapter 39. Multimedia Libraries and Drivers

libmpeg2-0.5.1

Introduction to libmpeg2

The libmpeg2 package contains a library for decoding MPEG-2 and MPEG-1 video streams. The library is able to decode all MPEG streams that conform to certain restrictions: “constrained parameters” for MPEG-1, and “main profile” for MPEG-2. This is useful for programs and applications needing to decode MPEG-2 and MPEG-1 video streams.

This package is known to build and work properly using an LFS-7.5 platform.

Package Information

libmpeg2 Dependencies

Optional

X Window System and SDL-1.2.15

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/libmpeg2

Installation of libmpeg2

Install libmpeg2 by running the following commands: 

sed -i 's/static const/static/' libmpeg2/idct_mmx.c &&
./configure --prefix=/usr                           &&
make

To test the results, issue: make check. To perform a more comprehensive regression test, see the file test/README in the source tree.

Now, as the root user: 

make install &&
install -v -m755 -d /usr/share/doc/mpeg2dec-0.5.1 &&
install -v -m644 README doc/libmpeg2.txt \
                    /usr/share/doc/mpeg2dec-0.5.1

Command Explanations

sed -i ...: This sed fixes problems with recent GCC compilers.

Contents

Installed Programs: corrupt_mpeg2, extract_mpeg2 and mpeg2dec
Installed Libraries: libmpeg2.{so,a} and libmpeg2convert.{so,a}
Installed Directories: /usr/include/mpeg2dec and /usr/share/doc/mpeg2dec-0.5.1

Short Descriptions

extract_mpeg2

extracts MPEG video streams from a multiplexed stream.

mpeg2dec

decodes MPEG1 and MPEG2 video streams.

libmpeg2.{so,a}

contains API functions used to decode MPEG video streams.

libmpeg2convert.{so,a}

contains API functions used for color conversions of MPEG video streams.

Last updated on 2014-02-25 11:00:30 -0800