annotate vamp-support/PluginOutputIdMapper.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_ID_MAPPER_H
#define PIPER_PLUGIN_ID_MAPPER_H

#include <vamp-hostsdk/Plugin.h>

#include <map>
#include <string>

namespace piper_vamp {

class PluginOutputIdMapper
{
public:
    virtual ~PluginOutputIdMapper() { }

    /**
     * Return the index of the given output id in the plugin. The
     * first output has index 0. If the given output id is unknown,
     * return -1.
     */
    virtual int idToIndex(std::string outputId) const noexcept = 0;

    /**
     * Return the id of the output with the given index in the
     * plugin. If the index is out of range, return the empty string.
     */
    virtual std::string indexToId(int index) const noexcept = 0;
};

}

#endif