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<OffthreadVideo>

Available from Remotion 3.0.11

This component imports and displays a video, similar to <Video/>, but during rendering, extracts the exact frame from the video and displays it in a <Img> tag. This extraction process happens outside the browser using FFMPEG.

This component was designed to combat limitations of the default <Video> element. See: <Video> vs <OffthreadVideo>.

Example​

tsx
import { AbsoluteFill, OffthreadVideo, staticFile } from "remotion";
 
export const MyVideo = () => {
  return (
    <AbsoluteFill>
      <OffthreadVideo src={staticFile("video.webm")} />
    </AbsoluteFill>
  );
};
tsx
import { AbsoluteFill, OffthreadVideo, staticFile } from "remotion";
 
export const MyVideo = () => {
  return (
    <AbsoluteFill>
      <OffthreadVideo src={staticFile("video.webm")} />
    </AbsoluteFill>
  );
};

You can load a video from an URL as well:

tsx
export const MyComposition = () => {
  return (
    <AbsoluteFill>
      <OffthreadVideo src="http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" />
    </AbsoluteFill>
  );
};
tsx
export const MyComposition = () => {
  return (
    <AbsoluteFill>
      <OffthreadVideo src="http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" />
    </AbsoluteFill>
  );
};

Props​

The props volume, playbackRate, muted and acceptableTimeShiftInSeconds are supported and work the same as in <Video>.

The props onError, className and style are supported and get passed to the underlying HTML element. Remember that during render, this is a <img> element, and during preview, this is a <video> element.

imageFormat v3.0.22​

Either jpeg or png. Default jpeg.
With png, transparent videos (VP8, VP9, ProRes) can be displayed, however it is around 40% slower, with VP8 videos being much slower.

allowAmplificationDuringRender v3.3.17​

Make values for volume greater than 1 result in amplification during renders.
During Preview, the volume will be limited to 1, since the browser cannot amplify audio.

Performance tips​

Avoid embedding a video beyond it's end (for example: Rendering a 5 second video inside 10 second composition). To create parity with the <Video> element, the video still displays its last frame in that case. However, to fetch the last frame specifically is a significantly more expensive operation than a frame from a known timestamp.

Looping a video​

Unlike <Video>, OffthreadVideo does not currently implement the loop property. You can use the following snippet that uses @remotion/media-utils to loop a video.

LoopedOffthreadVideo.tsx
tsx
import { getVideoMetadata } from "@remotion/media-utils";
import React, { useEffect, useState } from "react";
import {
  cancelRender,
  continueRender,
  delayRender,
  Loop,
  OffthreadVideo,
  staticFile,
  useVideoConfig,
} from "remotion";
 
const src = staticFile("myvideo.mp4");
 
export const LoopedOffthreadVideo: React.FC = () => {
  const [duration, setDuration] = useState<null | number>(null);
  const [handle] = useState(() => delayRender());
  const { fps } = useVideoConfig();
 
  useEffect(() => {
    getVideoMetadata(src)
      .then(({ durationInSeconds }) => {
        setDuration(durationInSeconds);
        continueRender(handle);
      })
      .catch((err) => {
        cancelRender(handle);
        console.log(err);
      });
  }, [handle]);
 
  if (duration === null) {
    return null;
  }
 
  return (
    <Loop durationInFrames={Math.floor(fps * duration)}>
      <OffthreadVideo src={src} />
    </Loop>
  );
};
LoopedOffthreadVideo.tsx
tsx
import { getVideoMetadata } from "@remotion/media-utils";
import React, { useEffect, useState } from "react";
import {
  cancelRender,
  continueRender,
  delayRender,
  Loop,
  OffthreadVideo,
  staticFile,
  useVideoConfig,
} from "remotion";
 
const src = staticFile("myvideo.mp4");
 
export const LoopedOffthreadVideo: React.FC = () => {
  const [duration, setDuration] = useState<null | number>(null);
  const [handle] = useState(() => delayRender());
  const { fps } = useVideoConfig();
 
  useEffect(() => {
    getVideoMetadata(src)
      .then(({ durationInSeconds }) => {
        setDuration(durationInSeconds);
        continueRender(handle);
      })
      .catch((err) => {
        cancelRender(handle);
        console.log(err);
      });
  }, [handle]);
 
  if (duration === null) {
    return null;
  }
 
  return (
    <Loop durationInFrames={Math.floor(fps * duration)}>
      <OffthreadVideo src={src} />
    </Loop>
  );
};

See also​