view vamp-client/AutoPlugin.h @ 116:d15cb1151d76

Add JSON support directly to the server. Had hoped to avoid this (using Capnp as canonical in the server and then converting externally as necessary) but it's just too useful for debugging purposes when bundled with client app

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

#ifndef PIPER_AUTO_PLUGIN_H
#define PIPER_AUTO_PLUGIN_H

#include "ProcessQtTransport.h"
#include "CapnpRRClient.h"

#include <cstdint>

namespace piper_vamp {
namespace client {

class AutoPlugin : public Vamp::Plugin
{
public:
    AutoPlugin(std::string serverName,
	       std::string pluginKey,
	       float inputSampleRate,
	       int adapterFlags) :
	Vamp::Plugin(inputSampleRate),
	m_transport(serverName),
	m_client(&m_transport)
    {
	LoadRequest req;
	req.pluginKey = pluginKey;
	req.inputSampleRate = inputSampleRate;
	req.adapterFlags = adapterFlags;
	LoadResponse resp = m_client.loadPlugin(req);
	m_plugin = resp.plugin;
    }

    virtual ~AutoPlugin() {
	delete m_plugin;
    }

    bool isOK() const {
	return (m_plugin != nullptr);
    }
    
    virtual std::string getIdentifier() const {
	return getPlugin()->getIdentifier();
    }

    virtual std::string getName() const {
	return getPlugin()->getName();
    }

    virtual std::string getDescription() const {
	return getPlugin()->getDescription();
    }

    virtual std::string getMaker() const {
	return getPlugin()->getMaker();
    }

    virtual std::string getCopyright() const {
	return getPlugin()->getCopyright();
    }

    virtual int getPluginVersion() const {
        return getPlugin()->getPluginVersion();
    }

    virtual ParameterList getParameterDescriptors() const {
	return getPlugin()->getParameterDescriptors();
    }

    virtual float getParameter(std::string name) const {
	return getPlugin()->getParameter(name);
    }

    virtual void setParameter(std::string name, float value) {
	getPlugin()->setParameter(name, value);
    }

    virtual ProgramList getPrograms() const {
        return getPlugin()->getPrograms();
    }

    virtual std::string getCurrentProgram() const {
        return getPlugin()->getCurrentProgram();
    }
    
    virtual void selectProgram(std::string program) {
	getPlugin()->selectProgram(program);
    }

    virtual bool initialise(size_t inputChannels,
                            size_t stepSize,
                            size_t blockSize) {
	return getPlugin()->initialise(inputChannels, stepSize, blockSize);
    }

    virtual void reset() {
	getPlugin()->reset();
    }

    virtual InputDomain getInputDomain() const {
	return getPlugin()->getInputDomain();
    }

    virtual size_t getPreferredBlockSize() const {
	return getPlugin()->getPreferredBlockSize();
    }

    virtual size_t getPreferredStepSize() const {
	return getPlugin()->getPreferredStepSize();
    }

    virtual size_t getMinChannelCount() const {
	return getPlugin()->getMinChannelCount();
    }

    virtual size_t getMaxChannelCount() const {
	return getPlugin()->getMaxChannelCount();
    }

    virtual OutputList getOutputDescriptors() const {
	return getPlugin()->getOutputDescriptors();
    }

    virtual FeatureSet process(const float *const *inputBuffers,
			       Vamp::RealTime timestamp) {
	return getPlugin()->process(inputBuffers, timestamp);
    }

    virtual FeatureSet getRemainingFeatures() {
	return getPlugin()->getRemainingFeatures();
    }

private:
    ProcessQtTransport m_transport;
    CapnpRRClient m_client;
    Vamp::Plugin *m_plugin;
    Vamp::Plugin *getPlugin() const {
	if (!m_plugin) {
	    throw std::logic_error
		("Plugin load failed (should have called AutoPlugin::isOK)");
	}
	return m_plugin;
    }
};

}
}

#endif