VideoFrame.prototype.toSeconds doesn't consider :FF

[pjdicke]

For the toSeconds method to be more precise you should consider factoring in the framerate as well.

var time = SMPTE.split(':');
return (((Number(time[0]) * 60) * 60) + (Number(time[1]) * 60) + Number(time[2]) + Number(time[3]) / this.frameRate );