create videojs Tech inline with vanilla js, integrate flv.js and video.js

flv-video.js

// <video controls preload="auto" class="video-js myPlayer">
//   <source src="bla.flv" type='video/x-flv'>
// </video>

var Tech = videojs.getTech('Html5');
FlashTech.prototype = Object.create(Tech.prototype);

function FlashTech(options) {

  Tech.call(this, options);

  this.techName = 'flash';

  this.setSrc = function(src) {
    if (this.flvPlayer) {
      this.flvPlayer.detachMediaElement();
      this.flvPlayer.destroy();
    }
    this.flvPlayer = flvjs.createPlayer({
      type: 'flv',
      url: src,
      cors: true
    });
    this.flvPlayer.attachMediaElement(this.el_);
    this.flvPlayer.load();
  }

  this.dispose = function() {
    this.flvPlayer.detachMediaElement();
    this.flvPlayer.destroy();
    Tech.dispose.call(this);
  }
};

FlashTech.canPlaySource = function(srcObj, options) {
  return FlashTech.canPlayType(srcObj.type);
};

FlashTech.formats = {
  'video/flv': 'FLV',
  'video/x-flv': 'FLV'
};

FlashTech.canPlayType = function(type) {
  if (this.isSupported() && type in FlashTech.formats) {
    return 'maybe';
  }
  return '';
};

FlashTech.isSupported = function() {
  return flvjs && flvjs.isSupported();
};

videojs.registerTech('flash', FlashTech);

var player = videojs('.myPlayer', {
  techOrder: ['Html5', 'flash']
});