Method play

examples/src/Examples.hpp:916–965

struct ex_misc : public labsound_example
{
    virtual void play(int argc, char ** argv) override
    {
        const auto defaultAudioDeviceConfigurations = GetDefaultAudioDeviceConfiguration();
        context = lab::MakeRealtimeAudioContext(defaultAudioDeviceConfigurations.second, defaultAudioDeviceConfigurations.first);
        lab::AudioContext& ac = *context.get();

        std::array<int, 8> majorScale = {0, 2, 4, 5, 7, 9, 11, 12};
        std::array<int, 8> naturalMinorScale = {0, 2, 3, 5, 7, 9, 11, 12};
        std::array<int, 6> pentatonicMajor = {0, 2, 4, 7, 9, 12};
        std::array<int, 8> pentatonicMinor = {0, 3, 5, 7, 10, 12};
        std::array<int, 8> delayTimes = {266, 533, 399};

        auto randomFloat = std::uniform_real_distribution<float>(0, 1);
        auto randomScaleDegree = std::uniform_int_distribution<int>(0, int(pentatonicMajor.size()) - 1);
        auto randomTimeIndex = std::uniform_int_distribution<int>(0, static_cast<int>(delayTimes.size()) - 1);

        auto audioClip = MakeBusFromSampleFile("samples/voice.ogg", argc, argv);
        std::shared_ptr<SampledAudioNode> audioClipNode = std::make_shared<SampledAudioNode>(ac);
        std::shared_ptr<PingPongDelayNode> pingping = std::make_shared<PingPongDelayNode>(ac, 240.0f);

        {
            ContextRenderLock r(context.get(), "ex_misc");

            pingping->BuildSubgraph(*context.get());
            pingping->SetFeedback(.75f);
            pingping->SetDelayIndex(lab::TempoSync::TS_16);

            context->connect(context->device(), pingping->output, 0, 0);

            audioClipNode->setBus(r, audioClip);

            context->connect(pingping->input, audioClipNode, 0, 0);

            audioClipNode->schedule(0.25);
        }

        _nodes.push_back(audioClipNode);
        
        _nodes.push_back(pingping->output);
        _nodes.push_back(pingping->input);
        _nodes.push_back(pingping->leftDelay);
        _nodes.push_back(pingping->rightDelay);
        _nodes.push_back(pingping->splitterGain);
        _nodes.push_back(pingping->wetGain);
        _nodes.push_back(pingping->feedbackGain);
        _nodes.push_back(pingping->merger);
        _nodes.push_back(pingping->splitter);

        Wait(10000);
    }
};

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