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Minim |
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isPlaying |
Description Returns true if this currently playing.Signature boolean isPlaying() Returns boolean: the current play state Related play ( )pause ( ) FilePlayer Example /**
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.
<p>
Press any key to pause and unpause playback!
<p>
For more information about Minim and additional features, visit http://code.compartmental.net/minim/
<p>
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
filePlayer.loop();
// 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
filePlayer.patch(out);
}
// 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
filePlayer.pause();
}
else
{
// starts the file looping again, picking up where we left off
filePlayer.loop();
}
}
void mousePressed()
{
float pos = map(mouseX, 0, width, 0, filePlayer.length());
filePlayer.cue((int)pos);
}
// 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 );
}
Usage Web & Application |