annotate vamp-client/client.cpp @ 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

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

#include <stdexcept>

using std::cerr;
using std::endl;

int main(int, char **)
{
    piper_vamp::client::ProcessQtTransport transport("../bin/piper-vamp-server");
    piper_vamp::client::CapnpRRClient client(&transport);

    piper_vamp::ListResponse lr = client.listPluginData();
    cerr << "Plugins available:" << endl;
    int i = 1;
    for (const auto &p: lr.available) {
        cerr << i++ << ". [" << p.pluginKey << "] " << p.basic.name << endl;
    }
    
    piper_vamp::LoadRequest req;
    req.pluginKey = "vamp-example-plugins:zerocrossing";
    req.inputSampleRate = 16;
    piper_vamp::LoadResponse resp = client.loadPlugin(req);
    Vamp::Plugin *plugin = resp.plugin;
    
    if (!plugin->initialise(1, 4, 4)) {
        cerr << "initialisation failed" << endl;
    } else {
        std::vector<float> buf = { 1.0, -1.0, 1.0, -1.0 };
        float *bd = buf.data();
        Vamp::Plugin::FeatureSet features = plugin->process
            (&bd, Vamp::RealTime::zeroTime);
        cerr << "results for output 0:" << endl;
        auto fl(features[0]);
        for (const auto &f: fl) {
            cerr << f.values[0] << endl;
        }
    }

    (void)plugin->getRemainingFeatures();

    cerr << "calling reset..." << endl;
    plugin->reset();
    cerr << "...round 2!" << endl;

    std::vector<float> buf = { 1.0, -1.0, 1.0, -1.0 };
    float *bd = buf.data();
    Vamp::Plugin::FeatureSet features = plugin->process
	(&bd, Vamp::RealTime::zeroTime);
    cerr << "results for output 0:" << endl;
    auto fl(features[0]);
    for (const auto &f: fl) {
	cerr << f.values[0] << endl;
    }
    
    (void)plugin->getRemainingFeatures();

    delete plugin;

    // Let's try a crazy AutoPlugin

    piper_vamp::client::AutoPlugin ap("../bin/piper-vamp-server",
				      "vamp-example-plugins:zerocrossing", 16, 0);
    if (!ap.isOK()) {
	cerr << "AutoPlugin creation failed" << endl;
    } else {
	if (!ap.initialise(1, 4, 4)) {
	    cerr << "initialisation failed" << endl;
	} else {
	    std::vector<float> buf = { 1.0, -1.0, 1.0, -1.0 };
	    float *bd = buf.data();
	    Vamp::Plugin::FeatureSet features = ap.process
		(&bd, Vamp::RealTime::zeroTime);
	    cerr << "results for output 0:" << endl;
	    auto fl(features[0]);
	    for (const auto &f: fl) {
		cerr << f.values[0] << endl;
	    }
	}
    }
}