robert@464: /*
robert@464:  ____  _____ _        _    
robert@464: | __ )| ____| |      / \   
robert@464: |  _ \|  _| | |     / _ \  
robert@464: | |_) | |___| |___ / ___ \ 
robert@464: |____/|_____|_____/_/   \_\
robert@464: 
robert@464: The platform for ultra-low latency audio and sensor processing
robert@464: 
robert@464: http://bela.io
robert@464: 
robert@464: A project of the Augmented Instruments Laboratory within the
robert@464: Centre for Digital Music at Queen Mary University of London.
robert@464: http://www.eecs.qmul.ac.uk/~andrewm
robert@464: 
robert@464: (c) 2016 Augmented Instruments Laboratory: Andrew McPherson,
robert@464:   Astrid Bin, Liam Donovan, Christian Heinrichs, Robert Jack,
robert@464:   Giulio Moro, Laurel Pardue, Victor Zappi. All rights reserved.
robert@464: 
robert@464: The Bela software is distributed under the GNU Lesser General Public License
robert@464: (LGPL 3.0), available here: https://www.gnu.org/licenses/lgpl-3.0.txt
robert@464: */
robert@464: 
robert@464: 
robert@464: #include <Bela.h>
robert@464: //#include <rtdk.h>
robert@464: #include <cmath>
robert@464: #include <NetworkSend.h>
robert@464: #include <ReceiveAudioThread.h>
robert@464: #include <Utilities.h>
robert@464: 
robert@464: // setup() is called once before the audio rendering starts.
robert@464: // Use it to perform any initialisation and allocation which is dependent
robert@464: // on the period size or sample rate.
robert@464: //
robert@464: // userData holds an opaque pointer to a data structure that was passed
robert@464: // in from the call to initAudio().
robert@464: //
robert@464: // Return true on success; returning false halts the program.
robert@464: 
robert@464: NetworkSend networkSend;
robert@464: ReceiveAudioThread receive;
robert@464: float gFrequency;
robert@464: float gInverseSampleRate;
robert@464: float gPhase;
robert@464: bool setup(BelaContext *context, void *userData)
robert@464: {
robert@464: 	// Retrieve a parameter passed in from the initAudio() call
robert@464: 	gFrequency = *(float *)userData;
robert@464: 
robert@464: 	networkSend.setup(context->audioSampleRate, context->audioFrames, 0, 9999, "192.168.7.1");
robert@464: 	receive.init(10000, context->audioFrames, 0);
robert@464: 	receive.startThread();
robert@464: 	gInverseSampleRate = 1.0 / context->audioSampleRate;
robert@464: 	gPhase = 0;
robert@464: 	return true;
robert@464: }
robert@464: 
robert@464: // render() is called regularly at the highest priority by the audio engine.
robert@464: // Input and output are given from the audio hardware and the other
robert@464: // ADCs and DACs (if available). If only audio is available, numMatrixFrames
robert@464: // will be 0.
robert@464: 
robert@464: void render(BelaContext *context, void *userData)
robert@464: {
robert@464: 	for(unsigned int n = 0; n < context->audioFrames; n++) {
robert@464: 		float out = 0.7f * sinf(gPhase);
robert@464: 		gPhase += 2.0 * M_PI * gFrequency * gInverseSampleRate;
robert@464: 		if(gPhase > 2.0 * M_PI)
robert@464: 			gPhase -= 2.0 * M_PI;
robert@464: 
robert@464: 		networkSend.log(out);
robert@464: 		float in;
robert@464: 		int ret = receive.getSamplesSrc(&in, 1, 1);
robert@464: 		for(unsigned int channel = 0; channel < context->audioChannels; channel++){
robert@464: 			audioWrite(context, n, channel, in);
robert@464: 		}
robert@464: 	}
robert@464: }
robert@464: 
robert@464: // cleanup() is called once at the end, after the audio has stopped.
robert@464: // Release any resources that were allocated in setup().
robert@464: 
robert@464: void cleanup(BelaContext *context, void *userData)
robert@464: {
robert@464: }
robert@464: 
robert@464: /* ------------ Project Explantation ------------ */
robert@464: 
robert@464: /**
robert@500: \example basic-network/render.cpp
robert@464: 
robert@464: Networking 
robert@464: ----------
robert@464: 
robert@464: This sketch allows you to send audio and sensor data over UDP to a 
robert@464: DAW on the host. The host needs to run Udpioplugin which you can find 
robert@464: [here](https://code.soundsoftware.ac.uk/projects/udpioplugin). 
robert@464: 
robert@464: Note that this sketch and the accompanying plugin are still in testing.
robert@464: */