Get VideoFrame format

video_frame_format.js

(() => {
  // change value of querySelector to whatever is needed to select the element, e.g. #my-canvas, #my-video
  const el = document.querySelector('canvas');
  const stream = el.captureStream(30);
  const track = stream.getVideoTracks()[0];
  const { readable } = new MediaStreamTrackProcessor({ track });
  const reader = readable.getReader();

  const read = async () => {
    const { done, value} = await reader.read();
    if (done) {
      return;
    }

    const frame = value;

    console.log('frame format', frame.format);
    frame.close();
    // uncomment if we want to keep reading
    // read();
  }

  read();
})();