Investigate manually decoding mjpeg to a canvas

[BrianAdams]

https://github.com/getify/mpAjax

The current 'reliable' system is using two image tags to pull data which doubles the bandwidth. At some point, Chrome appears to have broken the ability to pull mjpeg data through a img element using CORS.

If instead we can efficiently parse the incoming multipart stream in javascript, possibly via a webworker, we will get getter fine grain control over errors and gain the ability to access the CORS protected resources again.

[BrianAdams]

An alternate solution would be to make a plugin for MJPEG streamer that exposes the data frames via a socket.io or zero-mq->socket.io interface.