graph.cpp

void test_ap_player()
{
    int sr = 44100;
    int bufsize = 512;
    ScopedJuceInitialiser_GUI mm;
    AudioProcessorGraph graph;
    using IOProc = AudioProcessorGraph::AudioGraphIOProcessor;
    auto innode = graph.addNode(std::make_unique<IOProc>(IOProc::audioInputNode));
    auto outnode = graph.addNode(std::make_unique<IOProc>(IOProc::audioOutputNode));
    innode->getProcessor()->setPlayConfigDetails(1, 2, sr, bufsize);
    innode->getProcessor()->prepareToPlay(sr, bufsize);
    outnode->getProcessor()->setPlayConfigDetails(2, 2, sr, bufsize);
    outnode->getProcessor()->prepareToPlay(sr, bufsize);
    
    AudioPluginFormatManager plugman;
    plugman.addDefaultFormats();
    PluginDescription desc;
    desc.pluginFormatName = "VST";
    desc.fileOrIdentifier = "/Library/Audio/Plug-Ins/VST/ValhallaDelay.vst";
    String err;
    std::unique_ptr<AudioProcessor> plug = plugman.createPluginInstance(desc, sr, bufsize, err);
    std::cout << err << "\n";
    plug->setPlayConfigDetails(2, 2, sr, bufsize);
    plug->prepareToPlay(sr, bufsize);
    
    auto plugnode = graph.addNode(std::move(plug));
    graph.addConnection({{ innode->nodeID, 0 },{ plugnode->nodeID, 0 }});
    graph.addConnection({{ innode->nodeID, 0 },{ plugnode->nodeID, 1 }});
    graph.addConnection({{ plugnode->nodeID, 0 },{ outnode->nodeID, 0 }});
    graph.addConnection({{ plugnode->nodeID, 1 },{ outnode->nodeID, 1 }});
    graph.setPlayConfigDetails(2, 2, sr, bufsize);
    graph.prepareToPlay(sr, bufsize);
    AudioProcessorPlayer player;
    player.setProcessor(&graph);
    AudioDeviceManager devman;
    devman.initialiseWithDefaultDevices(2, 2);
    devman.addAudioCallback(&player);
    int foo;
    std::cin >> foo;
}