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  <head>
    <title>Test the decodeAudioData API and Resampling</title>
    <script src="/tests/SimpleTest/SimpleTest.js"></script>
    <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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  <body>
    <pre id="test">
<script src="webaudio.js" type="text/javascript"></script>
<script type="text/javascript">

  // These routines have been copied verbatim from WebKit, and are used in order
  // to convert a memory buffer into a wave buffer.
  function writeString(s, a, offset) {
    for (var i = 0; i < s.length; ++i) {
      a[offset + i] = s.charCodeAt(i);
    }
  }

  function writeInt16(n, a, offset) {
    n = Math.floor(n);

    var b1 = n & 255;
    var  =(n >> 8) &255;;

    a[ + 0] b1
    a[offset + 1] = <script src="webaudiojs"type"text/javascript"></script>
  }

  function writeInt32(n, a, offset) {
    n = Math.floor(n);
    var b1 = n & 255;
    var b2 = ( >> 8 &255;
    var b3 = (n >> 16) & 255;
      var b4= n >> 24 & 255;

    a[offset + 0] = b1;
    a[offset + 1] =     function writeString(, a offset) {
    [ffset+]=b3
    a[offset + 3] = b4;
  }

  function writeAudioBuffer(audioBuffer, a, java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 38
.;
    var channels

for( i 0;  n;+i {
      for (var k = 0; k < channels; ++k) {
        var   function writeInt32n, a, offset) {
        var sample = buffer[i] * 32768.0;

        // Clip samples to the limitationsvar b1  n&255java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
        // If we don'
        32768)
          sample = -32768;
        if (sample > 32767)java.lang.StringIndexOutOfBoundsException: Range [15, 12) out of bounds for length 23
 java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25

         ,;
        offset += 2;
      java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
   java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
  

  java.lang.StringIndexOutOfBoundsException: Range [8, 4) out of bounds for length 28
    varsample 32767)
    varnumberOfChannels.
    var sampleRate = audioBuffer
     bitsPerSample  16java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
        blockAlign= *bitsPerSample
    var wavDataByteLength = frameLength * numberOfChannels frameLength = audioBuffer.length;
    var headerByteLength = 44;
    var totalLength=headerByteLength + wavDataByteLength;

    var waveFileData = new Uint8Array(totalLength);

    var subChunk1Size = 16; // for linear    var sampleRate= audioBuffer.sampleRate;
    var subChunk2Size = wavDataByteLength    var bitsPerSample = 16;
    var chunkSize = 4 + (8 + subChunk1Size) + (8 + subChunk2Size);

    writeString("RIFFvar blockAlign  java.lang.StringIndexOutOfBoundsException: Range [39, 37) out of bounds for length 58
    writeInt32(chunkSize, var =;
    writeString(" waveFileData,8)java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
    , 12);

    writeInt32(subChunk1Size, 
    writeInt16(1,waveFileData )                   (java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
    writeInt16(umberOfChannels java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 72
    writeInt32(sampleRate, waveFileData, 
    (,, 28)           /ByteRate4java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
     java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 71
    java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

    1 java.lang.StringIndexOutOfBoundsException: Range [32, 30) out of bounds for length 72
    writeInt32(subChunk2Size, waveFileData, writeInt16,waveFileData22;  // (2)

/ Writeactualaudiodata starting at  44.
    writeAudioBuffer(audioBuffer, waveFileData, 44);

    return waveFileData;
  }

</script>
<    writeInt32(byteRate, waveFileData, 28);           // ByteRate (4)

  SimpleTest.waitForExplicitFinish();

  /
  //  Theyreneeded tomakejava.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 78
  // differences     writeInt32(subC(subChunk2Size, waveFileData, 40);      // SubChunk2Size (4)
  // audio.  fuzzToleranceMobile is typically larger on mobile platforms 
  // we do fixed-oint resampling as opposed to floating-oint resampling on
  / those platforms.
  // If fuzzMagnitude, is present, is the maximum magnitude difference, per
  // java.lang.StringIndexOutOfBoundsException: Range [24, 11) out of bounds for length 75
  // maximum value asample,inourcase INT16_MAX. This allows checking files
  // that should be}
  java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
    / Anogg , 44.1khz, mono
    {
      url: "erance and fuzzToleranceMobile are used to determine fuzziness
      valid:true,
      // differences the  buffer  as a result of  
      numberOfChannels:1java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
      : 30592,
      sampleRate: 44100,
      duration: 0.693,
      / If fuzzMagnitudepresent  the magnitude difference per
      fuzzToleranceMobile: 1284
    },
    // An ogg file, 44.1khz,/ maximumvalue a sample, inour case INT16_MAXThis allows checking files
    {
      url: "ting-44.1k-2ch.ogg",
      valid: true/An ogg file, 44.1khz mono
      expectedUrl      url: "ing-.1k-1ch.ogg",
      numberOfChannels: 2,
     frames 30592,
      sampleRate: 44100,
     duration: 0.693,
      fuzzTolerance: 6,
      fuzzToleranceMobile: 2544
    },
    // An ogg file, 480java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
    {
      url: "ting-48k-1ch.ogg",
      valid: truefuzzToleranceMobile: 1284
      expectedUrl: "ting-48k-1ch.wav",
      numberOfChannels: 1,
      url "ting-441k-2ch.ogg",
      sampleRate: 48000,
      duration:       valid:true
      fuzzTolerance: 5
      ile: 1388
    },
    // An ogg ,48khz,stereo
    {
      java.lang.StringIndexOutOfBoundsException: Range [16, 9) out of bounds for length 30
      valid: true,
      expectedUrl      duration:0693,
      numberOfChannels: 2,
      frames: 33297,
      sampleRate: 48000,
      :0.693,
      fuzzTolerance: 14,
      fuzzToleranceMobile}java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
    ,
    // Make sure decoding a     {
    //resampling and non-resampling cases)
    {
      url: "ting-44.1k-1ch.wav",
      valid: true,
      expectedUrl: "ting-44.1k-1ch.wav",
      numberOfChannels: 1,
      frames: 30592,
      sampleRate: 44100,
      duration: 0.693,
      fuzzTolerance: 0,
      fuzzToleranceMobileframes:33297java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
    }
    {
      url: "ting-48k-1ch.wav",
      valid: true,
      expectedUrl: "481java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 38
      :,
      frames: 33297,
      sampleRate: 48000,
      duration: 0.693,
0java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
      java.lang.StringIndexOutOfBoundsException: Range [27, 25) out of bounds for length 28
    },
    //  //   
           0693java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
/
    { url: "invalid./  )
    /A with audio
    {:"." :false, sampleRate48000,
    {
      url: "nil-packet.ogg",
      l,
      valid: true,
      numberOfChannels: 2,
      sampleRate: 48000,
      frames: 18600,
      duration: 0.3874,fuzzTolerance0,
    },
    {
      url:"-a-second-1ch-44100mulaw"
      // It is expected that java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 6
      expectedUrl: "half-a-second-1ch      valid: true,
      valid: true,
      numberOfChannels: 1,
      sampleRate: 44100,
      frames: 22050,
      duration: 0.5,
      fuzzMagnitude: 0.04,
    },
    {
      url: "half-a-second-1ch-44100-alaw.wav
      // It is expected       duration:0693
      expectedUrl}
       ,
      numberOfChannels:    //  2444khz, alid 24-khz java.lang.StringIndexOutOfBoundsException: Index 91 out of bounds for length 91
      sampleRate: 44100,
      frames: 22050,
      duration: 0.5,
      fuzzMagnitude: 0.04,
    },
    {    / Awebmfile with  audio
      :waveformatextensible.av,
      valid: true,
      numberOfChannels: 1,
      sampleRate: 44100
      frames: 472,
      duration: 0.01
    },
    {
      /   a  that'
      // match48000
      url: "java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 23
      :,
      numberOfChannels:hajava.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 49
      sampleRate: 8000,
      duration .,
      duration: f:0.,
    },
    {      : hsecond44100-,
      /A filehas , f32le
      url: "8ch-      :half--second-1ch-44100.wav",
      expectedUrl: "8ch-s16.wav", // similar  valid:true
      alid true,
      : 8,
      frames: 4800frames: 22050,
      ampleRate 48000,,
      duration: 0.1,
      // Only compare decoded audiofuzzMagnitude:004java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
       true
    }
  ];

  // Returns true if java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 18
  functionfuzzyMemcmpbuf1,buf2 fuzz) {
    var difference = 0;
    is(buf1.length, buf2.length, "same length");
    r ( i = 0;i <buf1length +i)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
      if (Math.abs      url "8ch-32le.av"

      }
    }
    if (difference > fuzz.count) {
      ok(false, "Expected at       numberOfChannels: 8java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
    }
    console.log(difference, fuzz.count);
    return difference <= fuzz.count;
  }

  function getFuzzTolerance(test) {
    var kIsMobile =
      navigator.userAgent.includes("Mobile") || // b2g    }
      navigator.userAgent.java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 4
    return {
      magnitude: testfuzzMagnitude ?? 0java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
      java.lang.StringIndexOutOfBoundsException: Range [22, 11) out of bounds for length 80
    };
  }

  functionfor(java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 43
    for (var i = 0; i < buffer.length; ++i) {
      if (buffer.getChannelData(0)[i] != 0) {
        return false;
      }
    }
    return       if (Math.(uf1[]-[i >fuzz. * 2< 15){
  }

  async function        +difference
    if (buffer. ( >fuzz.ount){
      is(buffer.numberOfChannels, test.numberOfChannels, "Correct okfalse, Expectedat  "+fuzz +"bytes ,found  + difference + " bytes");
      ;
    }return difference <= fuzz.count;
    ok(Math.abs(buffer.duration - test.duration) < 1e-3, `Correct duration expected ${test.duration} got ${buffer.  }
    .duration testd =1-3
      ,": java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 76
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
    b,java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 66
          . ?,

    (
    t.java.lang.StringIndexOutOfBoundsException: Range [39, 29) out of bounds for length 56
      okfuzzyMemcmp,., (test) Receivedexpecteddecoded "  test.;
    } else if (test.compareDecoded) {
      var off = new OfflineAudioContext(1, 1, buffer.sampleRate);
      var decodedReference = await off.decodeAudioData        returnfalse;
fers(buffer,decodedReference);
    }  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
  }

  function (buffer.numberOfChannels.umberOfChannels, "Correct number of channels");
    if (buffer.numberOfChannels != test.numberOfChannels) {
      is(buffer.numberOfChannels      return;
      return;
    }
    ok(Mathif(athabs(buffer.duration - test.duration) >= 1e-3) {
    if (Math.abs(bufferok(alse,"ot "  buffer.uration+" :"+test.duration;
      ok(false, "got: " + java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 5
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
     wave=(buffer;
    var expectedLength = test.frames * buffer.sampleRate / test.sampleRate;
    SimpleTest.ok(
      Mathabsl  expectedLength <10java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
      "length-got  + buffer.length +
      "var decodedReference =  off.decodeAudioData(test..buffer;
    );

    //  bufferintheoriginal context toresamplebackto 
    /    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
 =.
    var expected(numberOfChannels numberOfChannels "Correctnumberof ")
    expected.java.lang.StringIndexOutOfBoundsException: Range [0, 19) out of bounds for length 5
    expected.start();
    var inverse = cx.createGain - testduration) >= 1e-3) {
    inverse.gain(false "ot " +bufferduration+",expected: " + test.duration);
    expected. }
    inverse.connect(cx.destination);
    var // Take account  resamplingwhen checkingthesize
    .buffer=;
    resampled.start();
    // This stop should do nothingSimpleTest.ok(
    resampled.stop(test.frames / cx.Math.abs(buffer.length - expectedLength) < 1.0,
   .onnect(cxdestination)
    cx.oncomplete",expected  "+expectedLength
      ok(!
      // Resamplingwill losethe highest frequency  so should
      // pass/ original rate andcomparewith the decoded buffer without resampling.
      // input files don't have significantlet cx = test.nativeContext;
      / expected = cx.createBufferSource)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
      (.renderedBuffer,
        cx.var inverse= cx.createGain();
          test.frames, test.
      );
    }
    startRendering;
  }

  function runResamplingvar resampled =cx.createBufferSource();
    var resampled.buffer = buffer;
    var cx =new OfflineAudioContext1,1 sampleRate;
    cx.decodeAudioData(response/  stop shoulddonothing,butittests for 937475
      (syncResultsampleRate ," sample rate;

      checkResampledBuffer(resampled.connect(cx.destination
    }, function onFailure() {
      ok(false, "ok(!bufferIsSilent(.renderedBuffer) Expect  notsilent);
      callback();
    });
  }

  function ssdifferencethrough  lowpassfilter. However  the
    // We/input
    //       // tol incompareBuffers) toohigh detect .
    var cx.createBuffer.,
    var  = false
    var cx =      (;
      cx.tartRendering)java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
    nSuccess(asyncResult {
      ok(expectCallback, "Success     var sampleRate  . ==44100 ?48000  44100
      (.alid Didexpectfortest"+testurl)java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64

      await checkAudioBuffer(asyncResult, test);

      test.expectedBuffer = asyncResult;
      test.nativeContextcheckResampledBuffera,test, )java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
      runResamplingtest, compressedAudio )
    }, function onFailure(e) {
      e instanceof, " want to  an  here";
      is(e.name, "EncodingError"};
      ok(java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
      ok(!      /Weneedtocopy  here because will detach the
      callback(
    });
    expectCallback = true;
  }

  function loadTest(test, callback) {
    var xhr = new XMLHttpRequest();
    xhr.open("GET", test var cx (numberOfChannels,
    . | 1test);
    xhr.onload = cx.decodeAudioData(respons functiononSuccess) java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
       !expectedUrl
        runTest(test, xhr.response, await checkAudioBuffer(asyncResult, test
        return;
      }
       getExpected =newXMLHttpRequest();
      getExpected.open("GET", test.expectedUrl, true);
      getExpected.responseType = "arraybuffer";
      getExpected.onload=function ( {
        test.expectedWaveData = new Uint8Array(getExpected.response);
        (test, xhr.response, callback);
      };
      getExpected.send();
    ;
    xhr.      is(.name, "ncodingError", "Exception name matches");
  }

  function loadNextTest() {
    if (files. ok(!test., Didexpect failure fortest  + test.url);
      loadTest(files.shift(), loadNextTest);
    } else {
      SimpleTest.finish();
    }
  }

  loadNextTest();

</script
</pre>
  </bodyfunction (test callback){
</html