Vamp Plugin Tester

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*

    Vamp Plugin Tester

    Chris Cannam, cannam@all-day-breakfast.com

    Centre for Digital Music, Queen Mary, University of London.

    Copyright 2009 QMUL.

    This program loads a Vamp plugin and tests its susceptibility to a

    number of common pitfalls, including handling of extremes of input

    data.  If you can think of any additional useful tests that are

    easily added, please send them to me.

    Permission is hereby granted, free of charge, to any person

    obtaining a copy of this software and associated documentation

    files (the "Software"), to deal in the Software without

    restriction, including without limitation the rights to use, copy,

    modify, merge, publish, distribute, sublicense, and/or sell copies

    of the Software, and to permit persons to whom the Software is

    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be

    included in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR

    ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF

    CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

    Except as contained in this notice, the names of the Centre for

    Digital Music; Queen Mary, University of London; and Chris Cannam

    shall not be used in advertising or otherwise to promote the sale,

    use or other dealings in this Software without prior written

    authorization.

*/

#ifndef _TEST_H_

#define _TEST_H_

#include <string>

#include <vamp-hostsdk/Plugin.h>

class Test

{

public:

    virtual ~Test();

    class Result {

    public:

        enum Code { Success, Note, Warning, Error };

        Result(Code c, std::string m) : m_code(c), m_message(m) { }

        Code code() const { return m_code; }

        std::string message() const { return m_message; }

    protected:

        Code m_code;

        std::string m_message;

    };

    static Result success() { return Result(Result::Success, ""); }

    static Result note(std::string m) { return Result(Result::Note, m); }

    static Result warning(std::string m) { return Result(Result::Warning, m); }

    static Result error(std::string m) { return Result(Result::Error, m); }

    typedef std::vector<Result> Results;

    class FailedToLoadPlugin { };

    // may throw FailedToLoadPlugin

    virtual Results test(std::string key) = 0;

protected:

    Test();

    // may throw FailedToLoadPlugin

    Vamp::Plugin *load(std::string key, float rate = 44100);

    float **createBlock(size_t channels, size_t blocksize);

    void destroyBlock(float **blocks, size_t channels);

    float **createTestAudio(size_t channels, size_t blocksize, size_t blocks);

    void destroyTestAudio(float **audio, size_t channels);

    // use plugin's preferred step/block size, return them:

    bool initDefaults(Vamp::Plugin *, size_t &channels,

                      size_t &step, size_t &block, Results &r);

    // use the given step/block size and an adapter:

    bool initAdapted(Vamp::Plugin *, size_t &channels,

                     size_t step, size_t block, Results &r);

    void appendFeatures(Vamp::Plugin::FeatureSet &a,

                        const Vamp::Plugin::FeatureSet &b);

    bool allFeaturesValid(const Vamp::Plugin::FeatureSet &); // i.e. no NaN/inf

    void dump(const Vamp::Plugin::FeatureSet &);

    void dump(const Result &r,

              const Vamp::Plugin::FeatureSet &,

              const Vamp::Plugin::FeatureSet &);

};

extern bool operator==(const Vamp::Plugin::FeatureSet &a,

                       const Vamp::Plugin::FeatureSet &b);

extern bool operator==(const Vamp::Plugin::FeatureList &a,

                       const Vamp::Plugin::FeatureList &b);

extern bool operator==(const Vamp::Plugin::Feature &a,

                       const Vamp::Plugin::Feature &b);

#endif