/**
* Copyright tepe ( http://wonderfl.net/user/tepe )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/fycS
*/
package {
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.net.FileFilter;
import flash.net.FileReference;
public class MP3FileReferenceTest extends Sprite {
private var loader:MP3FileReferenceLoader;
private var fileReference:FileReference;
public function MP3FileReferenceTest() {
loader=new MP3FileReferenceLoader();
loader.addEventListener(MP3SoundEvent.COMPLETE,mp3LoaderCompleteHandler);
fileReference=new FileReference();
fileReference.addEventListener(Event.SELECT,fileReferenceSelectHandler);//ファイル選択
stage.addEventListener(MouseEvent.CLICK,clickHandler);//画面クリック
}
private function clickHandler(ev:MouseEvent):void {
fileReference.browse([new FileFilter("mp3 files","*.mp3")]);//ダイアログを開く
}
private function fileReferenceSelectHandler(ev:Event):void {
loader.getSound(fileReference);//ロード開始
}
private function mp3LoaderCompleteHandler(ev:MP3SoundEvent):void {
ev.sound.play();//再生
}
}
}
import flash.display.*;
import flash.events.*;
import flash.media.Sound;
import flash.net.FileReference;
import flash.utils.ByteArray;
import flash.utils.Endian;
[Event(name="complete", type="MP3SoundEvent")]
class MP3FileReferenceLoader extends EventDispatcher{
private var mp3Parser:MP3Parser;
public function MP3FileReferenceLoader(){
mp3Parser=new MP3Parser();
mp3Parser.addEventListener(Event.COMPLETE,parserCompleteHandler);
}
public function getSound(fr:FileReference):void {
mp3Parser.loadFileRef(fr);
}
private function parserCompleteHandler(ev:Event):void{
var parser:MP3Parser=ev.currentTarget as MP3Parser;
generateSound(parser);
}
private function generateSound(mp3Source:MP3Parser):Boolean{
var swfBytes:ByteArray=new ByteArray();
swfBytes.endian=Endian.LITTLE_ENDIAN;
for(var i:uint=0;i<SoundClassSwfByteCode.soundClassSwfBytes1.length;++i){
swfBytes.writeByte(SoundClassSwfByteCode.soundClassSwfBytes1[i]);
}
var swfSizePosition:uint=swfBytes.position;
swfBytes.writeInt(0); //swf size will go here
for(i=0;i<SoundClassSwfByteCode.soundClassSwfBytes2.length;++i){
swfBytes.writeByte(SoundClassSwfByteCode.soundClassSwfBytes2[i]);
}
var audioSizePosition:uint=swfBytes.position;
swfBytes.writeInt(0); //audiodatasize+7 to go here
swfBytes.writeByte(1);
swfBytes.writeByte(0);
mp3Source.writeSwfFormatByte(swfBytes);
var sampleSizePosition:uint=swfBytes.position;
swfBytes.writeInt(0); //number of samples goes here
swfBytes.writeByte(0); //seeksamples
swfBytes.writeByte(0);
var frameCount:uint=0;
var byteCount:uint=0; //this includes the seeksamples written earlier
for(;;){
var seg:ByteArraySegment=mp3Source.getNextFrame();
if(seg==null)break;
swfBytes.writeBytes(seg.byteArray,seg.start,seg.length);
byteCount+=seg.length;
frameCount++;
}
if(byteCount==0){
return false;
}
byteCount+=2;
var currentPos:uint=swfBytes.position;
swfBytes.position=audioSizePosition;
swfBytes.writeInt(byteCount+7);
swfBytes.position=sampleSizePosition;
swfBytes.writeInt(frameCount*1152);
swfBytes.position=currentPos;
for(i=0;i<SoundClassSwfByteCode.soundClassSwfBytes3.length;++i){
swfBytes.writeByte(SoundClassSwfByteCode.soundClassSwfBytes3[i]);
}
swfBytes.position=swfSizePosition;
swfBytes.writeInt(swfBytes.length);
swfBytes.position=0;
var swfBytesLoader:Loader=new Loader();
swfBytesLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,swfCreated);
swfBytesLoader.loadBytes(swfBytes);
return true;
}
private function swfCreated(ev:Event):void{
var loaderInfo:LoaderInfo=ev.currentTarget as LoaderInfo;
var soundClass:Class=loaderInfo.applicationDomain.getDefinition("SoundClass") as Class;
var sound:Sound=new soundClass();
dispatchEvent(new MP3SoundEvent(MP3SoundEvent.COMPLETE,sound));
}
}
import flash.events.Event;
import flash.media.Sound;
class MP3SoundEvent extends Event{
public var sound:Sound;
public static const COMPLETE:String="complete";
public function MP3SoundEvent(type:String, sound:Sound, bubbles:Boolean=false, cancelable:Boolean=false){
super(type, bubbles, cancelable);
this.sound=sound;
}
}
import flash.events.Event;
import flash.events.EventDispatcher;
import flash.events.IOErrorEvent;
import flash.net.FileReference;
import flash.net.URLLoader;
import flash.net.URLLoaderDataFormat;
import flash.net.URLRequest;
import flash.utils.ByteArray;
[Event(name="complete", type="flash.events.Event")]
class MP3Parser extends EventDispatcher{
private var mp3Data:ByteArray;
private var loader:URLLoader;
private var currentPosition:uint;
private var sampleRate:uint;
private var channels:uint;
private var version:uint;
private static var bitRates:Array=[-1,32,40,48,56,64,80,96,112,128,160,192,224,256,320,-1,-1,8,16,24,32,40,48,56,64,80,96,112,128,144,160,-1];
private static var versions:Array=[2.5,-1,2,1];
private static var samplingRates:Array=[44100,48000,32000];
public function MP3Parser(){
loader=new URLLoader();
loader.dataFormat=URLLoaderDataFormat.BINARY;
loader.addEventListener(Event.COMPLETE,loaderCompleteHandler);
}
internal function load(url:String):void{
var req:URLRequest=new URLRequest(url);
loader.load(req);
}
internal function loadFileRef(fileRef:FileReference):void{
fileRef.addEventListener(Event.COMPLETE,loaderCompleteHandler);
fileRef.addEventListener(IOErrorEvent.IO_ERROR,errorHandler);
//fileRef.addEventListener(Event.COMPLETE,loaderCompleteHandler);
fileRef.load();
}
private function errorHandler(ev:IOErrorEvent):void{
trace("error\n"+ev.text);
}
private function loaderCompleteHandler(ev:Event):void{
mp3Data=ev.currentTarget.data as ByteArray;
currentPosition=getFirstHeaderPosition();
dispatchEvent(ev);
}
private function getFirstHeaderPosition():uint{
mp3Data.position=0;
while(mp3Data.position<mp3Data.length){
var readPosition:uint=mp3Data.position;
var str:String=mp3Data.readMultiByte(3,"us-ascii");
if(str=="ID3"){
mp3Data.position+=3;
var b3:int=(mp3Data.readByte()&0x7F)<<21;
var b2:int=(mp3Data.readByte()&0x7F)<<14;
var b1:int=(mp3Data.readByte()&0x7F)<<7;
var b0:int=mp3Data.readByte()&0x7F;
var headerLength:int=b0+b1+b2+b3;
var newPosition:int=mp3Data.position+headerLength;
trace("Found id3v2 header, length "+headerLength.toString(16)+" bytes. Moving to "+newPosition.toString(16));
mp3Data.position=newPosition;
readPosition=newPosition;
}
else{
mp3Data.position=readPosition;
}
var val:uint=mp3Data.readInt();
if(isValidHeader(val)){
parseHeader(val);
mp3Data.position=readPosition+getFrameSize(val);
if(isValidHeader(mp3Data.readInt())){
return readPosition;
}
}
}
throw(new Error("Could not locate first header. This isn't an MP3 file"));
}
internal function getNextFrame():ByteArraySegment{
mp3Data.position=currentPosition;
var headerByte:uint;
var frameSize:uint;
while(true){
if(currentPosition>(mp3Data.length-4)){
trace("passed eof");
return null;
}
headerByte=mp3Data.readInt();
if(isValidHeader(headerByte)){
frameSize=getFrameSize(headerByte);
if(frameSize!=0xffffffff){
break;
}
}
currentPosition=mp3Data.position;
}
mp3Data.position=currentPosition;
if((currentPosition+frameSize)>mp3Data.length){
return null;
}
currentPosition+=frameSize;
return new ByteArraySegment(mp3Data,mp3Data.position,frameSize);
}
internal function writeSwfFormatByte(byteArray:ByteArray):void{
var sampleRateIndex:uint=4-(44100/sampleRate);
byteArray.writeByte((2<<4)+(sampleRateIndex<<2)+(1<<1)+(channels-1));
}
private function parseHeader(headerBytes:uint):void{
var channelMode:uint=getModeIndex(headerBytes);
version=getVersionIndex(headerBytes);
var samplingRate:uint=getFrequencyIndex(headerBytes);
channels=(channelMode>2)?1:2;
var actualVersion:Number=versions[version];
var samplingRates:Array=[44100,48000,32000];
sampleRate=samplingRates[samplingRate];
switch(actualVersion){
case 2:
sampleRate/=2;
break;
case 2.5:
sampleRate/=4;
}
}
private function getFrameSize(headerBytes:uint):uint{
var version:uint=getVersionIndex(headerBytes);
var bitRate:uint=getBitrateIndex(headerBytes);
var samplingRate:uint=getFrequencyIndex(headerBytes);
var padding:uint=getPaddingBit(headerBytes);
var channelMode:uint=getModeIndex(headerBytes);
var actualVersion:Number=versions[version];
var sampleRate:uint=samplingRates[samplingRate];
if(sampleRate!=this.sampleRate||this.version!=version){
return 0xffffffff;
}
switch(actualVersion){
case 2:
sampleRate/=2;
break;
case 2.5:
sampleRate/=4;
}
var bitRatesYIndex:uint=((actualVersion==1)?0:1)*bitRates.length/2;
var actualBitRate:uint=bitRates[bitRatesYIndex+bitRate]*1000;
var frameLength:uint=(((actualVersion==1?144:72)*actualBitRate)/sampleRate)+padding;
return frameLength;
}
private function isValidHeader(headerBits:uint):Boolean{
return (((getFrameSync(headerBits) & 2047)==2047) &&
((getVersionIndex(headerBits) & 3)!= 1) &&
((getLayerIndex(headerBits) & 3)!= 0) &&
((getBitrateIndex(headerBits) & 15)!= 0) &&
((getBitrateIndex(headerBits) & 15)!= 15) &&
((getFrequencyIndex(headerBits) & 3)!= 3) &&
((getEmphasisIndex(headerBits) & 3)!= 2) );
}
private function getFrameSync(headerBits:uint):uint{
return uint((headerBits>>21) & 2047);
}
private function getVersionIndex(headerBits:uint):uint{
return uint((headerBits>>19) & 3);
}
private function getLayerIndex(headerBits:uint):uint{
return uint((headerBits>>17) & 3);
}
private function getBitrateIndex(headerBits:uint):uint{
return uint((headerBits>>12) & 15);
}
private function getFrequencyIndex(headerBits:uint):uint{
return uint((headerBits>>10) & 3);
}
private function getPaddingBit(headerBits:uint):uint{
return uint((headerBits>>9) & 1);
}
private function getModeIndex(headerBits:uint):uint{
return uint((headerBits>>6) & 3);
}
private function getEmphasisIndex(headerBits:uint):uint{
return uint(headerBits & 3);
}
}
import flash.utils.ByteArray;
class ByteArraySegment {
public var start:uint;
public var length:uint;
public var byteArray:ByteArray;
public function ByteArraySegment(ba:ByteArray,start:uint,length:uint){
byteArray=ba;
this.start=start;
this.length=length;
}
}
class SoundClassSwfByteCode{
internal static const silentMp3Frame:Array=
[
0xFF , 0xFA , 0x92 , 0x40 , 0x78 , 0x05 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00,
0x4B , 0x80 , 0x00 , 0x00 , 0x08 , 0x00 , 0x00 , 0x09 , 0x70 , 0x00 , 0x00,
0x01 , 0x00 , 0x00 , 0x01 , 0x2E , 0x00 , 0x00 , 0x00 , 0x20 , 0x00 , 0x00,
0x25 , 0xC0 , 0x00 , 0x00 , 0x04 , 0xB0 , 0x04 , 0xB1 , 0x00 , 0x06 , 0xBA,
0xA8 , 0x22 , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF,
0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF , 0xFF
]
internal static const soundClassSwfBytes1:Array = [ 0x46 , 0x57 , 0x53 , 0x09 ];
internal static const soundClassSwfBytes2:Array =
[
0x78 , 0x00 , 0x05 , 0x5F , 0x00 , 0x00 , 0x0F , 0xA0 ,
0x00 , 0x00 , 0x0C , 0x01 , 0x00 , 0x44 , 0x11 , 0x08 ,
0x00 , 0x00 , 0x00 , 0x43 , 0x02 , 0xFF , 0xFF , 0xFF ,
0xBF , 0x15 , 0x0B , 0x00 , 0x00 , 0x00 , 0x01 , 0x00 ,
0x53 , 0x63 , 0x65 , 0x6E , 0x65 , 0x20 , 0x31 , 0x00 ,
0x00 , 0xBF , 0x14 , 0xC8 , 0x00 , 0x00 , 0x00 , 0x00 ,
0x00 , 0x00 , 0x00 , 0x00 , 0x10 , 0x00 , 0x2E , 0x00 ,
0x00 , 0x00 , 0x00 , 0x08 , 0x0A , 0x53 , 0x6F , 0x75 ,
0x6E , 0x64 , 0x43 , 0x6C , 0x61 , 0x73 , 0x73 , 0x00 ,
0x0B , 0x66 , 0x6C , 0x61 , 0x73 , 0x68 , 0x2E , 0x6D ,
0x65 , 0x64 , 0x69 , 0x61 , 0x05 , 0x53 , 0x6F , 0x75 ,
0x6E , 0x64 , 0x06 , 0x4F , 0x62 , 0x6A , 0x65 , 0x63 ,
0x74 , 0x0F , 0x45 , 0x76 , 0x65 , 0x6E , 0x74 , 0x44 ,
0x69 , 0x73 , 0x70 , 0x61 , 0x74 , 0x63 , 0x68 , 0x65 ,
0x72 , 0x0C , 0x66 , 0x6C , 0x61 , 0x73 , 0x68 , 0x2E ,
0x65 , 0x76 , 0x65 , 0x6E , 0x74 , 0x73 , 0x06 , 0x05 ,
0x01 , 0x16 , 0x02 , 0x16 , 0x03 , 0x18 , 0x01 , 0x16 ,
0x07 , 0x00 , 0x05 , 0x07 , 0x02 , 0x01 , 0x07 , 0x03 ,
0x04 , 0x07 , 0x02 , 0x05 , 0x07 , 0x05 , 0x06 , 0x03 ,
0x00 , 0x00 , 0x02 , 0x00 , 0x00 , 0x00 , 0x02 , 0x00 ,
0x00 , 0x00 , 0x02 , 0x00 , 0x00 , 0x01 , 0x01 , 0x02 ,
0x08 , 0x04 , 0x00 , 0x01 , 0x00 , 0x00 , 0x00 , 0x01 ,
0x02 , 0x01 , 0x01 , 0x04 , 0x01 , 0x00 , 0x03 , 0x00 ,
0x01 , 0x01 , 0x05 , 0x06 , 0x03 , 0xD0 , 0x30 , 0x47 ,
0x00 , 0x00 , 0x01 , 0x01 , 0x01 , 0x06 , 0x07 , 0x06 ,
0xD0 , 0x30 , 0xD0 , 0x49 , 0x00 , 0x47 , 0x00 , 0x00 ,
0x02 , 0x02 , 0x01 , 0x01 , 0x05 , 0x1F , 0xD0 , 0x30 ,
0x65 , 0x00 , 0x5D , 0x03 , 0x66 , 0x03 , 0x30 , 0x5D ,
0x04 , 0x66 , 0x04 , 0x30 , 0x5D , 0x02 , 0x66 , 0x02 ,
0x30 , 0x5D , 0x02 , 0x66 , 0x02 , 0x58 , 0x00 , 0x1D ,
0x1D , 0x1D , 0x68 , 0x01 , 0x47 , 0x00 , 0x00 , 0xBF ,
0x03
];
internal static const soundClassSwfBytes3:Array=
[
0x3F , 0x13 , 0x0F , 0x00 , 0x00 , 0x00 , 0x01 , 0x00 ,
0x01 , 0x00 , 0x53 , 0x6F , 0x75 , 0x6E , 0x64 , 0x43 ,
0x6C , 0x61 , 0x73 , 0x73 , 0x00 , 0x44 , 0x0B , 0x0F ,
0x00 , 0x00 , 0x00 , 0x40 , 0x00 , 0x00 , 0x00
];
}
