SFML/DSFML/samples/dsfml/soundstream/soundstream.d

module soundstream;

import dsfml.system.all;
import dsfml.audio.all;

version (Tango)
{
	import tango.io.Console;
	import tango.io.Stdout;
}
else
{
	import std.stdio;
}

// SoundStream is an abstract class.
// You need to implement onStart() and onGetData()
// Don't forget to call initialize() before any usage or playback will fail.
class MySoundStream : SoundStream
{
	SoundBuffer m_buff;
	short[] m_data;
	size_t m_cursor;
	
	this()
	{
		// We initialize the stream with some sound informations
		super(1, 11025);
		
		// We create a sound buffer to load samples from files
		m_buff = new SoundBuffer("Data/car_idle.wav");
		m_data = m_buff.samples[0..m_buff.samplesCount];
	}
	
protected:
/*
	bool onStart()
	{
		// No specifics things to do, just return true.
		return true;
	}
*/	
	override bool onGetData(out short[] data)
	{
		// We ensure that we have enough data to send
		if (m_cursor + this.sampleRate > m_data.length)
			return false;
		
		// Assign data in the buffer ...
		data = m_data[m_cursor..m_cursor + this.sampleRate];
		// ... and increment the cursor
		m_cursor += this.sampleRate;
		return true;
	}
	
	override void onSeek(float timeOffset)
	{
		
	}
}

void main()
{
	MySoundStream stream = new MySoundStream();
	
	display("Playing sound !\n Press enter to stop playback.");
	stream.play();
	read();		// prevent console from closing
	stream.stop();
}

void display(string c)
{
	version (Tango)
	{
		Stdout(c).newline;
	}
	else
	{
		writeln(c);
	}
}

/**
*	Dummy function to prevent console closing on windows
*/
void read()
{
	version (Tango)
	{
		Cin.get();
	}
	else
	{
		readln();
	}
}