node-mplayer

A node.js wrapper for MPlayer on Linux. Use it to play music on your sound card!

Usage

First, install the module with (assuming you already installed MPlayer)

npm install node-mplayer

Then, you need to make a new instance of the module. The constructor of the module can take the path of the file to play.

var Mplayer = require('node-mplayer'); 

var player1 = new Mplayer('/home/node/Music/Kalimba.mp3');
var player2 = new Mplayer('http://mysite.com/myfile.mp3');
var player3 = new Mplayer();

Available methods

play

This method will play the file defined when the player object was instanciated or setted with setFile(). This method MUST be called before any other. It can take in parameter an object that contains the volume, the number of times to play the file (see setVolume and setLoop) and an array of additionnal arguments to pass to MPlayer.

player.play();
player.play({volume: 50});
player.play({volume: 50,
            loop: 10});
player.play({additionnalArgs: ['-ao alsa:device=hw']});

checkPlaying

This method indicates if the player is currently playing something.

player.checkPlaying();  //returns true if playing, false if not

stop

This method will stop the played file.

player.stop();

quit

This Method will close the underlying process

player.quit();

pause

This one will toggle pause.

player.pause();

mute

The method to toggle mute

player.mute();

setVolume

This method is used to set the volume. It takes one parameter, the volume value that can go from 1 to 100.

player.setVolume(52);    //will set the volume to 52%

seek

This method is used to navigate in the playing file. It take one parameter, the seek value in seconds that goes from 0 to the end of the file. This value is absolute.

player.seek(50);    //will go to 50 seconds

setLoop

This will set the number of times to replay the file. The parameter is the number of times, -1 is forever.

player.setLoop(20);    //will play the file 20 times

setSpeed

This will set the playing speed. It takes one parameter, the speed. 1 is the default speed.

player.setSpeed(0.5);    //will play the file 0.5x slower
player.setSpeed(20);    //will play the file 20x faster

setFile

This one is used to set the file to play. The changes will take effect after calling the play() method. It takes the path of the file in parameter.

player.setFile('/home/node/Music/asdf.mp3');

getTimeLength

Returns the length of the file in seconds. It needs a callback.

player.getTimeLength(function(length){
    console.log(length);
});

getTimePosition

Returns the elapsed play time in seconds. It needs a callback.

player.getTimePosition(function(elapsedTime){
    console.log(elapsedTime);
});

getPercentPosition

Return the elapsed time in percent. It needs a callback.

player.getPercentPosition(function(elapsedPercent){
    console.log(elapsedPercent);
});

getVolume

Return the current volume. It needs a callback.

player.getVolume(function(currentVolume){
    console.log(currentVolume);
});

##Events

end

The end event is emitted when the file has ended.

error

The error event is emitted when an error has ocurred.

Stability

The latest tests of this module were made on Ubuntu 15.10 with MPlayer2 2.0-728-g2c378c7-4build1

Contributing

Any contribution is welcome! Just create a pull request, and I'll take a look as soon as possible.

Credits

Here's a list of people who contributed to this project :

• Maocx
• lacrioque
• nkcr