MJPEG+MP4 format fails silently

[wangjia184]

MJPEG in fMP4 container live streaming is for Intranet low latency video transfer.
Currently mpegts.ts does not raise any error when playing this feeds.

It keeps raising mpegts.Events.STATISTICS_INFO events and no frame can be decoded.

{playerType: 'NativePlayer', url: 'http://localhost:18873', decodedFrames: 0, droppedFrames: 0}
{playerType: 'NativePlayer', url: 'http://localhost:18873', decodedFrames: 0, droppedFrames: 0}
{playerType: 'NativePlayer', url: 'http://localhost:18873', decodedFrames: 0, droppedFrames: 0}
{playerType: 'NativePlayer', url: 'http://localhost:18873', decodedFrames: 0, droppedFrames: 0}
{playerType: 'NativePlayer', url: 'http://localhost:18873', decodedFrames: 0, droppedFrames: 0}
{playerType: 'NativePlayer', url: 'http://localhost:18873', decodedFrames: 0, droppedFrames: 0}

I think it should raise an error if it cannot decode it.
In face it can be decoded into JPEG image frames using javascript