使用JavaScript音频API将音频流添加到html音频元素
问题描述:
我试图用javascript音频API将音频流添加到html音频元素。下面的代码与服务器上的源文件完美协作,但不会添加流。在html级别开始使用html5音频的流可以正常工作,但片段的其余部分不起作用。这是我的JavaScript和HTML。使用JavaScript音频API将音频流添加到html音频元素
<!DOCTYPE HTML>
<html lang="en">
<head>
<style>
div#mp3_player{ width:500px; height:90px; background:#000; padding:5px; margin:50px auto; }
div#mp3_player > div > audio{ width:500px; background:#000; float:left; }
div#mp3_player > canvas{ width:500px; height:60px; background:#002D3C; float:left; }
</style>
<script>
// Create a new instance of an audio object and adjust some of its properties
var audio = new Audio();
audio.src = 'Five Finger Death Punch - Wrong Side Side of Heaven HD.mp3';
audio.controls = true;
audio.loop = true;
audio.autoplay = true;
// Establish all variables that your Analyser will use
var canvas, ctx, source, context, analyser, fbc_array, bars, bar_x, bar_width, bar_height;
// Initialize the MP3 player after the page loads all of its HTML into the window
window.addEventListener("load", initMp3Player, false);
function initMp3Player(){
document.getElementById('audio_box').appendChild(audio);
context = new webkitAudioContext(); // AudioContext object instance
analyser = context.createAnalyser(); // AnalyserNode method
canvas = document.getElementById('analyser_render');
ctx = canvas.getContext('2d');
// Re-route audio playback into the processing graph of the AudioContext
source = context.createMediaElementSource(audio);
source.connect(analyser);
analyser.connect(context.destination);
frameLooper();
}
// frameLooper() animates any style of graphics you wish to the audio frequency
// Looping at the default frame rate that the browser provides(approx. 60 FPS)
function frameLooper(){
window.webkitRequestAnimationFrame(frameLooper);
fbc_array = new Uint8Array(analyser.frequencyBinCount);
analyser.getByteFrequencyData(fbc_array);
ctx.clearRect(0, 0, canvas.width, canvas.height); // Clear the canvas
ctx.fillStyle = '#00CCFF'; // Color of the bars
bars = 100;
for (var i = 0; i < bars; i++) {
bar_x = i * 3;
bar_width = 2;
bar_height = -(fbc_array[i]/2);
// fillRect(x, y, width, height) // Explanation of the parameters below
ctx.fillRect(bar_x, canvas.height, bar_width, bar_height);
}
}
</script>
</head>
<body>
<div id="mp3_player">
<div id="audio_box"></div>
<canvas id="analyser_render"></canvas>
</div>
</body>
</html>
我的问题是.....在服务器上的文件工作正常....但流不会播放。它似乎加载,但我从流中没有声音。 一个其与SORCE文件工作的演示是在enter link description here
我试图播放流是http://173.35.234.36:8000/stream
TY对于可能b提供:)
答
事实证明任何帮助,你的端点http://173.35.234.36:8000/stream
,不支持CORS。当从不同的来源(即,不同的域,端口或协议)请求它,则该请求将由浏览器的原因如下被拒绝:
CORS访问限制MediaElementAudioSource输出零由于对http://173.35.234.36:8000/stream
http://173.35.234.36:8000/stream你找不到的文件找不到 – monkey
@monkey链接对我来说工作正常 –
链接工作正常....它是在线http://autodude666.com/网络.....和@Patrick Roberts .. TYVM ..我会研究它。 –