annotate vamp-support/PluginStaticData.h @ 180:bd543e74a9bf

Correct the inspection of the JSON object in successful to look for both error and success objects, writing out an error string if neither are present. Revert error handling in readInput() for JSON.

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

/*
    Piper C++

    Centre for Digital Music, Queen Mary, University of London.
    Copyright 2006-2016 Chris Cannam and QMUL.
  
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*/

#ifndef PIPER_PLUGIN_STATIC_DATA_H
#define PIPER_PLUGIN_STATIC_DATA_H

#include <vamp-hostsdk/Plugin.h>

namespace piper_vamp {

/**
 * \class PluginStaticData
 * 
 * PluginStaticData is a structure bundling together all the
 * information about a plugin that cannot be changed by the plugin
 * after it is loaded. That is, everything that does not depend on a
 * parameter or initialisation setting.
 *
 * All of the information in here can be queried from other sources
 * directly (notably the Vamp::Plugin class itself); this structure
 * just pulls it together in one place and provides something that can
 * be stored and recalled without having a Vamp::Plugin object to
 * hand.
 */
struct PluginStaticData
{
public:
    struct Basic {
	std::string identifier;
	std::string name;
	std::string description;
    };
    typedef std::vector<Basic> BasicList;

    PluginStaticData() : // invalid static data by default
	pluginVersion(0), minChannelCount(0), maxChannelCount(0),
	inputDomain(Vamp::Plugin::TimeDomain) { }

    std::string pluginKey;
    Basic basic;
    std::string maker;
    std::string copyright;
    int pluginVersion;
    std::vector<std::string> category;
    size_t minChannelCount;
    size_t maxChannelCount;
    Vamp::PluginBase::ParameterList parameters;
    Vamp::PluginBase::ProgramList programs;
    Vamp::Plugin::InputDomain inputDomain;
    BasicList basicOutputInfo;

    static PluginStaticData
    fromPlugin(std::string pluginKey,
	       std::vector<std::string> category,
	       Vamp::Plugin *p) {

	PluginStaticData d;
	d.pluginKey = pluginKey;
	d.basic.identifier = p->getIdentifier();
	d.basic.name = p->getName();
	d.basic.description = p->getDescription();
	d.maker = p->getMaker();
	d.copyright = p->getCopyright();
	d.pluginVersion = p->getPluginVersion();
	d.category = category;
	d.minChannelCount = p->getMinChannelCount();
	d.maxChannelCount = p->getMaxChannelCount();
	d.parameters = p->getParameterDescriptors();
	d.programs = p->getPrograms();
	d.inputDomain = p->getInputDomain();

	Vamp::Plugin::OutputList outputs = p->getOutputDescriptors();
	for (Vamp::Plugin::OutputList::const_iterator i = outputs.begin();
	     i != outputs.end(); ++i) {
	    Basic b;
	    b.identifier = i->identifier;
	    b.name = i->name;
	    b.description = i->description;
	    d.basicOutputInfo.push_back(b);
	}

	return d;
    }
};

}

#endif