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 <cmath>
robert@464: #include <WriteFile.h>
robert@464: 
robert@464: float gPhase1, gPhase2;
robert@464: float gFrequency1, gFrequency2;
robert@464: float gInverseSampleRate;
robert@464: 
robert@464: WriteFile file1;
robert@464: WriteFile file2;
robert@464: 
robert@464: bool setup(BelaContext *context, void *userData)
robert@464: {
robert@464: 	gInverseSampleRate = 1.0/context->audioSampleRate;
robert@464: 	file1.init("out1.m"); //set the file name to write to
robert@464: 	file1.setHeader("myvar=[\n"); //set a line to be printed at the beginning of the file
robert@464: 	file1.setFooter("];\n"); //set a line to be printed at the end of the file
robert@464: 	file1.setEcho(true); // enable echo to the console (as well as to the file)
robert@464: 	file1.setFormat("%.5f %.10f %f\n"); // set the format that you want to use for your output. Please use %f only (with modifiers)
robert@464: 	file2.init("out2.m");
robert@464: 	file2.setHeader("input=[\n");
robert@464: 	file2.setFooter("];\n");
robert@464: 	file2.setEcho(false);
robert@464: 	file2.setFormat("%f\n");
robert@464: 	gPhase1 = 0.0;
robert@464: 	gPhase2 = 0.0;
robert@464: 
robert@464: 	gFrequency1 = 200.0;
robert@464: 	gFrequency2 = 201.0;
robert@464: 	return true; 
robert@464: }
robert@464: 
robert@464: void render(BelaContext *context, void *userData)
robert@464: {
robert@464: 	static int count = 0;
robert@464: 	if((count&16383) == 0){
robert@464:     	file2.log(context->audioIn, context->audioFrames); //write the input buffer every so often
robert@464: 	}
robert@464: 	for(unsigned int n = 0; n < context->audioFrames; n++) {
robert@464: 	    float chn1 = sinf(gPhase1);
robert@464: 	    float chn2 = sinf(gPhase2);
robert@464: 	    gPhase1 += 2.0 * M_PI * gFrequency1 * gInverseSampleRate;
robert@464: 	    gPhase2 += 2.0 * M_PI * gFrequency2 * gInverseSampleRate;
robert@464: 		if(gPhase1 > 2.0 * M_PI)
robert@464: 			gPhase1 -= 2.0 * M_PI;
robert@464: 		if(gPhase2 > 2.0 * M_PI)
robert@464: 			gPhase2 -= 2.0 * M_PI;
robert@464: 		if( (count&511) == 0){
robert@464: 			file1.log(chn1);
robert@464: 			file1.log(chn2);
robert@464: 			file1.log(count);
robert@464: 		}
robert@464: 		count++;
robert@464: 	}
robert@464: }
robert@464: 
robert@464: // cleanup_render() is called once at the end, after the audio has stopped.
robert@464: // Release any resources that were allocated in initialise_render().
robert@464: 
robert@464: void cleanup(BelaContext *context, void *userData)
robert@464: {
robert@464:     
robert@464: }
robert@464: 
robert@464: /* ------------ Project Explantation ------------ */
robert@464: 
robert@464: /**
robert@464: \example 07-write-file
robert@464: 
robert@464: Writing data to a file
robert@464: ---------------------------
robert@464: 
robert@464: This sketch demonstrates how to log values from within a project for later processing or analysis.
robert@464: 
robert@464: */
robert@464: