ladspa-sdk を Homebrew, apt, Nix でインストール

プロジェクトリンク

• ホームページ

コマンドとエイリアス

• analyseplugin
• applyplugin
• listplugins

プロジェクトの歴史

The original API text was posted by Richard Furse in 2000 as a deliberately short C interface for unit generators that could be dynamically loaded by multiple audio hosts. The official SDK change log records version 1.01 on 2 April 2000 with the header, limited documentation, three plugins, and two hosts, followed in May 2000 by SDK version numbering, more example plugins, LADSPA_PATH support, HTML documentation, and the listplugins utility.

The SDK stayed intentionally small. Version 1.10 introduced the LGPL license in May 2001, version 1.12 updated the SDK for LADSPA v1.1 in August 2002, and later maintenance releases in 2019 and 2021 modernized the build, default search paths, libsndfile use in applyplugin, and small command-line behavior.

採用の歴史

The LADSPA site describes the standard as a way for audio processors and effects to plug into a wide range of Linux synthesis and recording packages, with most major Linux audio applications supporting it. The same page points to plugin libraries and generators such as Steve Harris's plugins, CMT, CAPS, TAP, and Faust, which is why the SDK package tends to appear as a small dependency in audio-oriented package sets.

使われ方

Developers use the SDK primarily for ladspa.h and the example code, while users and package tests see analyseplugin, applyplugin, and listplugins. The LADSPA_PATH environment variable is part of the historical packaging story because it gives hosts a standard way to find installed plugin shared libraries.

パッケージ好きにとっての重要性

LADSPA SDK is a classic small-library package: stable header, tiny tools, simple search path, and lots of downstream optional integrations. It matters because it represents the Unix packaging style of exposing a narrow shared interface rather than shipping a whole workstation.

タイムライン

• 2000-04-02: LADSPA SDK 1.01 initial release included the header, limited documentation, three plugins, and two hosts.
• 2000-05-04: SDK 1.02 added version numbering, ten example plugins, and LADSPA_PATH support.
• 2001-05-08: SDK 1.10 introduced LGPL licensing.
• 2002-08-07: SDK 1.12 updated for LADSPA v1.1.
• 2019-01-03: SDK 1.14 modernized build details and introduced a default plugin search path.
• 2021-09-09: SDK 1.17 shipped applyplugin clip-checking and usage-message maintenance.

Related projects

• The official site links LADSPA to the CMT plugin library, Steve Harris plugins, CAPS, TAP, Faust, Csound-oriented tooling, and other Linux audio projects that either provide LADSPA plugins or generate them.

ソース

• https://ladspa.org/original_api.txt
• https://www.ladspa.org/
• https://www.ladspa.org/ladspa_sdk/changes.html
• https://www.ladspa.org/ladspa_sdk/overview.html