Compile your C++ Vamp plugin code into a Javascript module that exports the Piper JSON protocol, for use with Javascript code that uses Piper audio feature extractors.
If you have an existing Vamp plugin with source code, you can generally use the code here to convert it (with a little tweaking) to a browser/runtime-independent Javascript module that can then be distributed and used in browser applications via the Piper protocol. Limitations on performance and memory usage may apply.
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Adapter code to make a Vamp plugin library into a module that exports request-handling functions for the Piper protocol's JSON serialisation. This code is in C++ and can be compiled to a native shared library or to Javascript with Emscripten.
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Examples of usage with Vamp plugin code, found in the examples/vamp-example-plugins and examples/vamp-test-plugin directories.
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A utility (piper-vamp-stub-generator) that loads up an existing Vamp plugin and queries it along with its accompanying metadata, writing out a first draft of the converted module's main function code based on what it finds in the plugin.
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A complete worked example of using that utility and building the resulting module, in a Docker script that can be read as documentation or run within Docker on Linux, found in examples/docker/Dockerfile.
Written by Chris Cannam and Lucas Thompson at the Centre for Digital Music, Queen Mary, University of London.
Copyright (c) 2015-2017 Queen Mary, University of London, provided under a BSD-style licence. See the file COPYING for details.