<Thumbnail>

available from v3.2.41

A component which can be rendered in a regular React App (for example: Create React App, Next.JS) to display a single frame of a video.

MyApp.tsx
tsx
import { Thumbnail } from "@remotion/player";
import { MyVideo } from "./remotion/MyVideo";
 
export const App: React.FC = () => {
  return (
    <Thumbnail
      component={MyVideo}
      compositionWidth={600}
      compositionHeight={600}
      frameToDisplay={30}
      durationInFrames={120}
      fps={30}
      inputProps={{
        title: "Foo",
      }}
    />
  );
};

MyApp.tsx
tsx
import { Thumbnail } from "@remotion/player";
import { MyVideo } from "./remotion/MyVideo";
 
export const App: React.FC = () => {
  return (
    <Thumbnail
      component={MyVideo}
      compositionWidth={600}
      compositionHeight={600}
      frameToDisplay={30}
      durationInFrames={120}
      fps={30}
      inputProps={{
        title: "Foo",
      }}
    />
  );
};

API

component or lazyComponent

Pass a React component in directly or pass a function that returns a dynamic import. Passing neither or both of the props is an error.

If you use lazyComponent, wrap it in a useCallback() to avoid constant rendering. See here for an example.

note

Thumbnail does not use <Composition>'s. Pass your component directly and do not wrap it in a <Composition> component.

frameToDisplay

Index of the frame rendered by the composition in the Thumbnail.

compositionWidth

The width you would like the video to have when rendered as an MP4. Use style={{width: <width>}} to define a width to be assumed in the browser.

note

Example: If you want to render a Full HD video, set compositionWidth to 1920 and compositionHeight to 1080. By default, the thumbnail will also assume these dimensions. To make it smaller, pass a style prop to give the Thumbnail a different width: {"style={{width: 400}}"}. See Player Scaling to learn more.

compositionHeight

The height of the canvas in pixels. The height you would like the video to have when rendered as an MP4. Use style={{height: <height>}} to define a height to be assumed in the browser.

durationInFrames

The duration of the video in frames. Must be an integer and greater than 0.

note

This prop is required for the Thumbnail component because your component may render differently based on what useVideoConfig() returns.

fps

The frame rate of the video. Must be a number.

note

This prop is required for the Thumbnail component because your component may render differently based on what useVideoConfig() returns.

errorFallback

optional

A callback for rendering a custom error message. See Handling errors section for an example.

renderLoading

optional

A callback function that allows you to return a custom UI that gets displayed while the thumbnail is loading.

The first parameter of the callback function contains the height and width of the thumbnail as it gets rendered.

tsx
const MyApp: React.FC = () => {
  // `RenderLoading` type can be imported from "@remotion/player"
  const renderLoading: RenderLoading = useCallback(({ height, width }) => {
    return (
      <AbsoluteFill style={{ backgroundColor: "gray" }}>
        Loading thumbnail ({height}x{width})
      </AbsoluteFill>
    );
  }, []);
 
  return (
    <Thumbnail
      fps={30}
      component={Component}
      durationInFrames={100}
      compositionWidth={1080}
      compositionHeight={1080}
      frameToDisplay={30}
      renderLoading={renderLoading}
    />
  );
};

tsx
const MyApp: React.FC = () => {
  // `RenderLoading` type can be imported from "@remotion/player"
  const renderLoading: RenderLoading = useCallback(({ height, width }) => {
    return (
      <AbsoluteFill style={{ backgroundColor: "gray" }}>
        Loading thumbnail ({height}x{width})
      </AbsoluteFill>
    );
  }, []);
 
  return (
    <Thumbnail
      fps={30}
      component={Component}
      durationInFrames={100}
      compositionWidth={1080}
      compositionHeight={1080}
      frameToDisplay={30}
      renderLoading={renderLoading}
    />
  );
};

info

A thumbnail needs to be loaded if it contains elements that use React Suspense, or if the lazyComponent prop is being used.

inputProps

optional

Pass props to the component that you have specified using the component prop. The Typescript definition takes the shape of the props that you have given to your component. Default undefined.

style

optional

A regular style prop for a HTMLDivElement. You can pass a different height and width if you would like different dimensions for the thumbnail than the original composition dimensions.

className

optional - available since v3.1.3

A HTML class name to be applied to the container.

ThumbnailRef

You may attach a ref to the thumbnail and get some layout info.

tsx
import { Thumbnail, ThumbnailRef } from "@remotion/player";
import { useEffect, useRef } from "react";
import { MyComposition } from "./MyComposition";
 
const MyComp: React.FC = () => {
  const thumbnailRef = useRef<ThumbnailRef>(null);
 
  useEffect(() => {
    if (thumbnailRef.current) {
      console.log(thumbnailRef.current.getScale());
    }
  }, []);
 
  return (
    <Thumbnail
      ref={thumbnailRef}
      durationInFrames={30}
      compositionWidth={1080}
      compositionHeight={1080}
      fps={30}
      frameToDisplay={30}
      component={MyComposition}
      // Many other optional props are available.
    />
  );
};

tsx
import { Thumbnail, ThumbnailRef } from "@remotion/player";
import { useEffect, useRef } from "react";
import { MyComposition } from "./MyComposition";
 
const MyComp: React.FC = () => {
  const thumbnailRef = useRef<ThumbnailRef>(null);
 
  useEffect(() => {
    if (thumbnailRef.current) {
      console.log(thumbnailRef.current.getScale());
    }
  }, []);
 
  return (
    <Thumbnail
      ref={thumbnailRef}
      durationInFrames={30}
      compositionWidth={1080}
      compositionHeight={1080}
      fps={30}
      frameToDisplay={30}
      component={MyComposition}
      // Many other optional props are available.
    />
  );
};

The following methods are available on the thumbnail ref:

getContainerNode()

Gets the container HTMLDivElement of the thumbnail. Useful if you'd like to manually attach listeners to the thumbnail element.

tsx
const thumbnailRef = useRef<ThumbnailRef>(null);
 
useEffect(() => {
  if (!thumbnailRef.current) {
    return;
  }
  const container = thumbnailRef.current.getContainerNode();
  if (!container) {
    return;
  }
 
  const onClick = () => {
    console.log("thumbnail got clicked");
  };
 
  container.addEventListener("click", onClick);
  return () => {
    container.removeEventListener("click", onClick);
  };
}, []);

tsx
const thumbnailRef = useRef<ThumbnailRef>(null);
 
useEffect(() => {
  if (!thumbnailRef.current) {
    return;
  }
  const container = thumbnailRef.current.getContainerNode();
  if (!container) {
    return;
  }
 
  const onClick = () => {
    console.log("thumbnail got clicked");
  };
 
  container.addEventListener("click", onClick);
  return () => {
    container.removeEventListener("click", onClick);
  };
}, []);

getScale()

Returns a number which says how much the content is scaled down compared to the natural composition size. For example, if the composition is 1920x1080, but the thumbnail is 960px in width, this method would return 0.5.

addEventListener()

Start listening to an event. See the Events section to see the function signature and the available events.

removeEventListener()

Stop listening to an event. See the Events section to see the function signature and the available events.

Events

Using a thumbnail ref, you can bind event listeners to get notified of certain events of the thumbnail.

tsx
const thumbnailRef = useRef<ThumbnailRef>(null);
 
useEffect(() => {
  if (!thumbnailRef.current) {
    return;
  }
 
  thumbnailRef.current.addEventListener("error", (e) => {
    console.log("error", e.detail.error);
  });
}, []);

tsx
const thumbnailRef = useRef<ThumbnailRef>(null);
 
useEffect(() => {
  if (!thumbnailRef.current) {
    return;
  }
 
  thumbnailRef.current.addEventListener("error", (e) => {
    console.log("error", e.detail.error);
  });
}, []);

error

Fires when an error or uncaught exception has happened in the thumbnail.

You may get the error by reading the e.detail.error value:

tsx
ref.current?.addEventListener("error", (e) => {
  console.log("error ", e.detail.error); // error [Error: undefined is not a function]
});

tsx
ref.current?.addEventListener("error", (e) => {
  console.log("error ", e.detail.error); // error [Error: undefined is not a function]
});

Handling errors

See: <Player> -> Handling errors

See also

• Source code for this component
• <Composition>
• <Player>