MediaRecorder

readonly audioBitsPerSecond: number;

readonly mimeType: string;

ondataavailable: ((this: MediaRecorder, ev: BlobEvent) => any) | null;

onerror: ((this: MediaRecorder, ev: MediaRecorderErrorEvent) => any) | null;

onpause: ((this: MediaRecorder, ev: Event) => any) | null;

onresume: ((this: MediaRecorder, ev: Event) => any) | null;

onstart: ((this: MediaRecorder, ev: Event) => any) | null;

onstop: ((this: MediaRecorder, ev: Event) => any) | null;

readonly state: RecordingState;

readonly stream: MediaStream;

readonly videoBitsPerSecond: number;

addEventListener<K extends keyof MediaRecorderEventMap>(): void;

addEventListener(): void;

pause(): void;

removeEventListener<K extends keyof MediaRecorderEventMap>(): void;

removeEventListener(): void;

requestData(): void;

resume(): void;

start(timeslice?: number): void;

stop(): void;