в 09:19, 26 мая 2010

2010-05-26T09:19:13Z

Admin: 1 версия

2010-05-26T08:15:01Z

1 версия

Новая страница

==Calculating Spectrum Data==



<source lang="java">

package {
import flash.utils.ByteArray;
import flash.events.*;
import flash.net.*;
import flash.display.*;
import flash.media.*;
import flash.geom.*;
public class Main extends Sprite {
private const SPECTRUM_WIDTH:int = 256;
private const BMP_HEIGHT:int = 200;
private const BMP_WIDTH:int = 256;
private var sound:Sound = new Sound(new URLRequest("http://www.wbex.ru/y.mp3"));
private var soundData:ByteArray;
private var bitmapData:BitmapData;
private var bitmapDisplay:Bitmap;
public function Main () {
sound.play();
bitmapData = new BitmapData(BMP_WIDTH, BMP_HEIGHT, true, 0x00000000);
bitmapDisplay = new Bitmap(bitmapData);
addChild(bitmapDisplay);
this.addEventListener(Event.ENTER_FRAME, onEnterFrame);
}
public function onEnterFrame (event:Event):void {
soundData = new ByteArray();
SoundMixer.ruputeSpectrum(soundData);
bitmapData.fillRect(bitmapData.rect, 0xFF000000);
for (var i:int=0; i < SPECTRUM_WIDTH; i++) {
var amplitude:Number = soundData.readFloat();
var ampHeight:Number = BMP_HEIGHT/2 * (amplitude + 1);
var rect:Rectangle = new Rectangle(i, BMP_HEIGHT -ampHeight, 1, ampHeight);
bitmapData.fillRect(rect, 0xffffffff);
}
}
}
}
</source>

==Find Out When a Sound Finishes Playing==



<source lang="java">

package {
import flash.display.Sprite;
import flash.media.Sound;
import flash.net.URLRequest;
import flash.events.Event;
import flash.media.SoundChannel;

public class Main extends Sprite {
private var _sound:Sound;
private var _channel:SoundChannel;
private var _playList:Array; // the list of songs
private var _index:int = 0; // the current song
public function Main() {
_playList = ["song1.mp3",
"song2.mp3",
"song3.mp3"];
playNextSong( );
}

private function playNextSong( ):void
{
if(_index < _playList.length) {
_sound = new Sound( );
_sound.load(new URLRequest(_playList[_index]));
_channel = _sound.play( );
_channel.addEventListener(Event.SOUND_COMPLETE,onComplete);
_index++;
}
}

public function onComplete(event:Event):void
{
playNextSong( );
}
}
}

</source>

==ID3 Reader==



<source lang="java">

package {
import flash.display.Sprite;
import flash.media.Sound;
import flash.net.URLRequest;
import flash.events.Event;
import flash.text.TextField;

public class Main extends Sprite {
private var _sound:Sound;

public function Main( ) {
_sound = new Sound(new URLRequest("song.mp3"));
_sound.addEventListener(Event.ID3, onID3);
_sound.play( );
}

public function onID3(event:Event):void {
var id3Display:TextField = new TextField( );
addChild(id3Display);
id3Display.x = 10;
id3Display.y = 20;
id3Display.width = 200;
id3Display.height = 200;
id3Display.background = true;
id3Display.multiline = true;
id3Display.wordWrap = true;
id3Display.text += _sound.id3.songName + "\n";
id3Display.text += _sound.id3.artist + "\n";
id3Display.text += _sound.id3.album + "\n";
id3Display.text += _sound.id3.year + "\n";
}
}
}
</source>

==Load mp3 file from a URL==



<source lang="java">

package{
import flash.display.Sprite;
import flash.media.*;
import flash.events.*;
import flash.net.*;
import flash.text.*;
public class Main extends Sprite{
public function Main(){
var song:Sound = new Sound(new URLRequest("http://server.ru/robotPicksFlowers.mp3"));
song.play();
}
}
}
</source>

==Load mp3 sound file==



<source lang="java">

package{
import flash.display.Sprite;
import flash.media.*;
import flash.events.*;
import flash.net.*;
import flash.text.*;
public class Main extends Sprite{
public function Main(){
var sound:Sound = new Sound(new URLRequest("sound.mp3"));
sound.play();
}
}
}
</source>

==Reading the Level of a Sound==



<source lang="java">

package {
import flash.display.Sprite;
import flash.media.Sound;
import flash.media.SoundChannel;
import flash.net.URLRequest;
import flash.events.Event;

public class Main extends Sprite {
private var _sound:Sound;
private var _channel:SoundChannel;

public function Main( ) {
addEventListener(Event.ENTER_FRAME, onEnterFrame);
_sound = new Sound(new URLRequest("song.mp3"));
_channel = _sound.play( );
}

public function onEnterFrame(event:Event):void
{
var leftLevel:Number = _channel.leftPeak * 100;
var rightLevel:Number = _channel.rightPeak * 100;
trace(leftLevel);
trace(rightLevel);

}
}
}
</source>

==Tracking the Progress of a Playing Sound==



<source lang="java">

package {
import flash.display.Sprite;
import flash.media.Sound;
import flash.media.SoundChannel;
import flash.net.URLRequest;
import flash.events.Event;
public class ProgressBar2 extends Sprite {
private var _sound:Sound;
private var _channel:SoundChannel;

public function ProgressBar2( ) {
addEventListener(Event.ENTER_FRAME, onEnterFrame);
_sound = new Sound(new URLRequest("song.mp3"));
_channel = _sound.play( );
}

public function onEnterFrame(event:Event):void
{

var loaded:int = _sound.bytesLoaded;
var total:int = _sound.bytesTotal;

var length:int = _sound.length;
var position:int = _channel.position;

if(total > 0) {
trace(loaded);
trace(length);
trace(position);
}
}
}
}
</source>

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Flash / Flex / ActionScript/Development/MP3 - История изменений

в 09:19, 26 мая 2010

Admin: 1 версия