meemoo app: getUserMedia camera to WebM video (Chrome only)

cam2webm.json

{
  "info": {
    "title": "cam to webm",
    "author": "forresto",
    "description": "html5 camera to webm video encoding (chrome only)",
    "url": "webm-test",
    "parents": [
      "https://gist.github.com/3122332",
      "https://gist.github.com/3124854",
      "https://gist.github.com/3449335",
      "https://gist.github.com/3450413"
    ]
  },
  "nodes": [
    {
      "src": "meemoo:file/webm",
      "x": 709,
      "y": 164,
      "z": 0,
      "w": 368,
      "h": 322,
      "state": {
        "fps": 20
      },
      "id": 2
    },
    {
      "src": "meemoo:image/cam",
      "x": 122,
      "y": 111,
      "z": 0,
      "w": 351,
      "h": 279,
      "state": {
        "width": 320,
        "height": 240,
        "fps": 20
      },
      "id": 1
    },
    {
      "src": "meemoo:ui/button",
      "x": 230,
      "y": 536,
      "z": 0,
      "w": 242,
      "h": 60,
      "state": {
        "label": "done, encode WebM"
      },
      "id": 3
    }
  ],
  "edges": [
    {
      "source": [
        3,
        "bang"
      ],
      "target": [
        2,
        "encode"
      ]
    }
  ]
}