core | ugens | analysis




Sets looping to continuous. If this is already playing, the position will not be reset to the beginning. If this is not playing, it will start playing.


void loop()
void loop(int loopCount)


loopCount — int: the number of times to loop




loopCount ( )
setLoopPoints ( )
isLooping ( )


  This is an example of how to use a FilePlayer UGen to play an audio file. It support all of the same formats that 
  AudioPlayer does, but allows you to insert the audio from the file into a UGen chain. FilePlayer provides all the 
  same methods that AudioPlayer does for controlling the file playback: play(), loop(), cue(int position), etc.
  Press any key to pause and unpause playback!
  For more information about Minim and additional features, visit
  author: Damien Di Fede

import ddf.minim.*;
import ddf.minim.spi.*; // for AudioRecordingStream
import ddf.minim.ugens.*;

// declare everything we need to play our file
Minim minim;
FilePlayer filePlayer;
AudioOutput out;

// you can use your own file by putting it in the data directory of this sketch
// and changing the value assigned to fileName here.
String fileName = "groove.mp3";

void setup()
  // setup the size of the app
  size(640, 240);
  // create our Minim object for loading audio
  minim = new Minim(this);
  // a FilePlayer reads from an AudioRecordingStream, which we 
  // can easily get from Minim using loadFileStream
  filePlayer = new FilePlayer( minim.loadFileStream(fileName) );
  // and then we'll tell the file player to loop indefinitely
  // get a line out from Minim. It's important that the file is the same audio format 
  // as our output (i.e. same sample rate, number of channels, etc).
  out = minim.getLineOut();
  // patch the file player to the output

// keyPressed is called whenever a key on the keyboard is pressed
void keyPressed()
  // you can query whether the file is playing or not
  // playing simply means that it is generating sound
  // this will be true if you tell it to play() or loop()
  if ( filePlayer.isPlaying() )
    // pauses playback of the file
    // starts the file looping again, picking up where we left off

void mousePressed()
  float pos = map(mouseX, 0, width, 0, filePlayer.length());

// draw is run many times
void draw()
  // erase the window to black
  background( 0 );
  // draw using a white stroke
  stroke( 255 );
  // draw the waveforms
  for( int i = 0; i < out.bufferSize() - 1; i++ )
    // find the x position of each buffer value
    float x1  =  map( i, 0, out.bufferSize(), 0, width );
    float x2  =  map( i+1, 0, out.bufferSize(), 0, width );
    // draw a line from one buffer position to the next for both channels
    line( x1, 50 + out.left.get(i)*50, x2, 50 + out.left.get(i+1)*50);
    line( x1, 150 + out.right.get(i)*50, x2, 150 + out.right.get(i+1)*50);

  float songPos = map( filePlayer.position(), 0, filePlayer.length(), 0, width );

  stroke( 255, 0, 0 );
  line( songPos, 0, songPos, height );
  text( "loopCount: " + filePlayer.loopCount(), 15, 15 );


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