Beyond Linux® From Scratch - Version 2012-05-25

Chapter 38. Multimedia Libraries and Drivers

opal-3.10.2

Introduction to opal

The opal package is a C++ class library for normalising the numerous telephony protocols into a single integrated call model.

This package is known to build using an LFS 7.0 platform but has not been tested.

Package Information

Additional Downloads

opal Dependencies

Required

ptlib-2.10.2

Optional

celt, FFmpeg-0.10.3, libtheora-1.1.1, Speex-1.2rc1, and x264

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

Installation of opal

Install opal by running the following commands: 

patch -Np1 -i ../opal-3.10.2-ffmpeg-1.patch &&
./configure --prefix=/usr &&
make

This package does not come with a test suite.

Now, as the root user: 

make install

Command Explanations

patch -Np1 -i ...: The patch allows opal to build with recent releases of ffmpeg.

Contents

Installed Programs: None
Installed Library: libopal.so, libopal_s.a, g722_audio_pwplugin.so, g726_audio_pwplugin.so, gsm0610_audio_pwplugin.so, gsmamrcodec_pwplugin.so, ilbc_audio_pwplugin.so, ima_adpcm_audio_pwplugin.so, lpc10_audio_pwplugin.so, speex_audio_pwplugin.so, h261-vic_video_pwplugin.so, and vpb_lid_pwplugin.so
Installed Directories: /usr/{include/opal/{asn,codec,h323,h460,iax2,im,lids,opal,rtp,sip, t120,t38,zrtp},lib/opal-3.6.8/{codecs/{audio,video},lid}}

Short Descriptions

libopal.so

contains the opal API functions.

Last updated on 2012-02-05 23:32:02 +0000