Method play

examples/src/Examples.hpp:1602–1639

struct ex_split_merge : public labsound_example
{
    virtual void play(int argc, char ** argv) override final
    {
        _nodes.clear();

        std::unique_ptr<lab::AudioContext> context;
        const auto defaultAudioDeviceConfigurations = GetDefaultAudioDeviceConfiguration();
        context = lab::MakeRealtimeAudioContext(defaultAudioDeviceConfigurations.second, defaultAudioDeviceConfigurations.first);
        lab::AudioContext & ac = *context.get();

        std::shared_ptr<ChannelSplitterNode> splitter = std::make_shared<ChannelSplitterNode>(ac,6);
        std::shared_ptr<ChannelMergerNode> merger = std::make_shared<ChannelMergerNode>(ac,6);
        std::shared_ptr<GainNode> gain = std::make_shared<GainNode>(ac);
        gain->gain()->setValueAtTime(.5f,(float)ac.currentTime());

        auto chan6_source = MakeBusFromSampleFile("samples/6_Channel_ID.wav", argc, argv);
        std::shared_ptr<SampledAudioNode> musicClipNode;
        musicClipNode = std::make_shared<SampledAudioNode>(ac);
        {
            ContextRenderLock r(context.get(), "ex_split_merge");
            musicClipNode->setBus(r, chan6_source);
        }

        context->connect(splitter, musicClipNode);
        context->connect(merger, splitter, 0, 1); // swap front-left
        context->connect(merger, splitter, 1, 0); // and front right to demonstrate channels can be swapped
        context->connect(gain, merger, 0, 0);
        context->connect(context->device(), gain, 0, 0);
        musicClipNode->schedule(0.0);

        // ensure nodes last until the end of the demo
        _nodes.push_back(musicClipNode);
        _nodes.push_back(gain);
        _nodes.push_back(merger);
        _nodes.push_back(splitter);

        const uint32_t delay_time_ms = 2000;
        Wait(delay_time_ms);
    }
};