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2025-05-21 21:20:08 +03:00

302 lines
10 KiB
C#

/*===============================================================================================
NetStream Example
Copyright (c), Firelight Technologies Pty, Ltd 2004-2016.
This example shows how to play streaming audio from the internet
===============================================================================================*/
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Runtime.InteropServices;
namespace netstream
{
public class NetStream : System.Windows.Forms.Form
{
private FMOD.System system = null;
private FMOD.Sound sound = null;
private FMOD.Channel channel = null;
private bool soundcreated = false;
private System.Windows.Forms.Label label;
private System.Windows.Forms.StatusBar statusBar;
private System.Windows.Forms.Timer timer;
private System.Windows.Forms.TextBox textBox;
private System.Windows.Forms.Button exit_button;
private System.Windows.Forms.Button playButton;
private System.Windows.Forms.Button pauseButton;
private System.ComponentModel.IContainer components;
public NetStream()
{
InitializeComponent();
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
FMOD.RESULT result;
/*
Shutdown
*/
if (sound != null)
{
result = sound.release();
ERRCHECK(result);
}
if (system != null)
{
result = system.close();
ERRCHECK(result);
result = system.release();
ERRCHECK(result);
}
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.label = new System.Windows.Forms.Label();
this.statusBar = new System.Windows.Forms.StatusBar();
this.timer = new System.Windows.Forms.Timer(this.components);
this.textBox = new System.Windows.Forms.TextBox();
this.exit_button = new System.Windows.Forms.Button();
this.playButton = new System.Windows.Forms.Button();
this.pauseButton = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// label
//
this.label.Location = new System.Drawing.Point(14, 16);
this.label.Name = "label";
this.label.Size = new System.Drawing.Size(264, 32);
this.label.TabIndex = 7;
this.label.Text = "Copyright (c) Firelight Technologies 2004-2016";
this.label.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// statusBar
//
this.statusBar.Location = new System.Drawing.Point(0, 155);
this.statusBar.Name = "statusBar";
this.statusBar.Size = new System.Drawing.Size(296, 24);
this.statusBar.TabIndex = 16;
//
// timer
//
this.timer.Enabled = true;
this.timer.Interval = 10;
this.timer.Tick += new System.EventHandler(this.timer_Tick);
//
// textBox
//
this.textBox.Location = new System.Drawing.Point(8, 56);
this.textBox.Name = "textBox";
this.textBox.Size = new System.Drawing.Size(280, 20);
this.textBox.TabIndex = 17;
this.textBox.Text = "http://";
//
// exit_button
//
this.exit_button.Location = new System.Drawing.Point(110, 128);
this.exit_button.Name = "exit_button";
this.exit_button.Size = new System.Drawing.Size(72, 24);
this.exit_button.TabIndex = 18;
this.exit_button.Text = "Exit";
this.exit_button.Click += new System.EventHandler(this.exit_button_Click);
//
// playButton
//
this.playButton.Location = new System.Drawing.Point(8, 88);
this.playButton.Name = "playButton";
this.playButton.Size = new System.Drawing.Size(136, 32);
this.playButton.TabIndex = 19;
this.playButton.Text = "Start";
this.playButton.Click += new System.EventHandler(this.playButton_Click);
//
// pauseButton
//
this.pauseButton.Location = new System.Drawing.Point(152, 88);
this.pauseButton.Name = "pauseButton";
this.pauseButton.Size = new System.Drawing.Size(136, 32);
this.pauseButton.TabIndex = 20;
this.pauseButton.Text = "Pause/Resume";
this.pauseButton.Click += new System.EventHandler(this.pauseButton_Click);
//
// NetStream
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(296, 179);
this.Controls.Add(this.pauseButton);
this.Controls.Add(this.playButton);
this.Controls.Add(this.exit_button);
this.Controls.Add(this.textBox);
this.Controls.Add(this.statusBar);
this.Controls.Add(this.label);
this.Name = "NetStream";
this.Text = "Netstream Example";
this.Load += new System.EventHandler(this.NetStream_Load);
this.ResumeLayout(false);
}
#endregion
[STAThread]
static void Main()
{
Application.Run(new NetStream());
}
private void NetStream_Load(object sender, System.EventArgs e)
{
uint version = 0;
FMOD.RESULT result;
/*
Create a System object and initialize.
*/
result = FMOD.Factory.System_Create(ref system);
ERRCHECK(result);
result = system.getVersion(ref version);
ERRCHECK(result);
if (version < FMOD.VERSION.number)
{
MessageBox.Show("Error! You are using an old version of FMOD " + version.ToString("X") + ". This program requires " + FMOD.VERSION.number.ToString("X") + ".");
Application.Exit();
}
result = system.init(1, FMOD.INITFLAGS.NORMAL, (IntPtr)null);
ERRCHECK(result);
/*
Bump up the file buffer size a little bit for netstreams (to account for lag). Decode buffer is left at default.
*/
result = system.setStreamBufferSize(64*1024, FMOD.TIMEUNIT.RAWBYTES);
ERRCHECK(result);
}
private void playButton_Click(object sender, System.EventArgs e)
{
FMOD.RESULT result;
string url;
if (!soundcreated)
{
statusBar.Text = "Buffering...";
url = textBox.Text;
result = system.createSound(url, (FMOD.MODE.HARDWARE | FMOD.MODE._2D | FMOD.MODE.CREATESTREAM | FMOD.MODE.NONBLOCKING), ref sound);
ERRCHECK(result);
soundcreated = true;
}
}
private void pauseButton_Click(object sender, System.EventArgs e)
{
FMOD.RESULT result;
bool paused = false;
if (channel != null)
{
result = channel.getPaused(ref paused);
ERRCHECK(result);
result = channel.setPaused(!paused);
ERRCHECK(result);
}
}
private void exit_button_Click(object sender, System.EventArgs e)
{
Application.Exit();
}
private void timer_Tick(object sender, System.EventArgs e)
{
FMOD.RESULT result;
FMOD.OPENSTATE openstate = 0;
uint percentbuffered = 0;
bool starving = false;
bool busy = false;
if (soundcreated)
{
result = sound.getOpenState(ref openstate, ref percentbuffered, ref starving, ref busy);
ERRCHECK(result);
if (openstate == FMOD.OPENSTATE.READY && channel == null)
{
result = system.playSound(FMOD.CHANNELINDEX.FREE, sound, false, ref channel);
ERRCHECK(result);
}
}
if (channel != null)
{
uint ms = 0;
bool playing = false;
bool paused = false;
for (;;)
{
FMOD.TAG tag = new FMOD.TAG();
if (sound.getTag(null, -1, ref tag) != FMOD.RESULT.OK)
{
break;
}
if (tag.datatype == FMOD.TAGDATATYPE.STRING)
{
textBox.Text = tag.name + " = " + Marshal.PtrToStringAnsi(tag.data) + " (" + tag.datalen + " bytes)";
}
else
{
break;
}
}
result = channel.getPaused(ref paused);
ERRCHECK(result);
result = channel.isPlaying(ref playing);
ERRCHECK(result);
result = channel.getPosition(ref ms, FMOD.TIMEUNIT.MS);
ERRCHECK(result);
statusBar.Text = "Time " + (ms /1000 / 60) + ":" + (ms / 1000 % 60) + ":" + (ms / 10 % 100) + (openstate == FMOD.OPENSTATE.BUFFERING ? " Buffering..." : (openstate == FMOD.OPENSTATE.CONNECTING ? " Connecting..." : (paused ? " Paused " : (playing ? " Playing " : " Stopped ")))) + "(" + percentbuffered + "%)" + (starving ? " STARVING" : " ");
}
if (system != null)
{
system.update();
}
}
private void ERRCHECK(FMOD.RESULT result)
{
if (result != FMOD.RESULT.OK)
{
timer.Stop();
MessageBox.Show("FMOD error! " + result + " - " + FMOD.Error.String(result));
Environment.Exit(-1);
}
}
}
}