Definition
MediaStream Recording defines MediaRecorderOptions
dictionary MediaRecorderOptions {
DOMString mimeType = "";
unsigned long audioBitsPerSecond;
unsigned long videoBitsPerSecond;
unsigned long bitsPerSecond;
BitrateMode audioBitrateMode = "variable";
DOMHighResTimeStamp videoKeyFrameIntervalDuration;
unsigned long videoKeyFrameIntervalCount;
};