Arch Linux

laertiades

Member

From: Seattle

Registered: 2013-01-20

Posts: 11

Website

web audio api is disabled with Firefox after resume from sleep

I have encountered what appears to be a bug with Firefox's implementation of the Web Audio API.  The following jsfiddle illustrates the problem:

    var audioCtx = new (window.AudioContext || window.webkitAudioContext)();
    var source;
    function getData() {
      source = audioCtx.createBufferSource();
      request = new XMLHttpRequest();
      request.open('GET', 'https://s3-us-west-2.amazonaws.com/mpclubtest/tracks/waves/000/000/155/mp3/Chasing_after_you.mp3', true);
      request.responseType = 'arraybuffer';
      request.onload = function() {
        var audioData = request.response;
        audioCtx.decodeAudioData(audioData, function(buffer) {
            source.buffer = buffer;
            source.connect(audioCtx.destination);
          },
          function(e){"Error with decoding audio data" + e.err});
      }
      request.send();
    }
    getData();
    source.start(0);

When running this code with Firefox (3.17.3-1-ARCH) if I put the computer to sleep, when it resumes the script no longer works.  I have reproduced the problem on two computers running Arch.  Refreshing the page doesn't even help.  Closing and reopening the browser fixes it.  Also playing a video with youtube in a different tab gets it working again.  Can anyone shed some light?  I would be interested to know what exactly is going wrong and how best to handle the problem.  Thanks for any help.

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