Supplemental Linux® From Scratch (System V Edition) - Version #477a

Chapter 8. Multimedia Libraries

LADSPA-SDK-1.17

Introduction to LADSPA-SDK

The Linux Audio Developer's Simple Plugin API (LADSPA) standard is used for piping multiple effects and audio processors into various tools and libraries. The LADSPA SDK contains several plugins and the interface header file which can be used by several packages. FFmpeg and MLT are notable examples. To have support in those packages, you must install this package first to not only provide the API, but the plugins as well.

[Note]

Note

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Additional Downloads

LADSPA-SDK Dependencies

Recommended

libsndfile

Installation of LADSPA-SDK

Apply a patch that fixes a memory leak, a linkage error, and Makefile flags: 

patch -Np1 -i ../ladspa_sdk_1.17-arch-1.patch

Install LADSPA-SDK by running the following commands: 

make -C src targets

Now, as the root user: 

make -C src install

Contents

Installed Programs: analyseplugin, applyplugin, and listplugins
Installed Plugins: amp, delay, filter, noise, and sine (in /usr/lib/ladspa)
Installed Directories: /usr/lib/ladspa

Short Descriptions

analyseplugin

analyzes a given LADSPA plugin

applyplugin

passes over an audio file with a given plugin and outputs the new audio file

listplugins

gives a list of available LADSPA plugins