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renderStillOnLambda()

Renders a still image inside a lambda function and writes it to the specified output location.

If you want to render a video or audio instead, use renderMediaOnLambda() instead.

If you want to render a still locally instead, use renderStill() instead.

Example​

tsx
const { estimatedPrice, url, sizeInBytes } = await renderStillOnLambda({
  region: "us-east-1",
  functionName: "remotion-render-bds9aab",
  serveUrl:
    "https://remotionlambda-qg35eyp1s1.s3.eu-central-1.amazonaws.com/sites/bf2jrbfkw",
  composition: "MyVideo",
  inputProps: {},
  imageFormat: "png",
  maxRetries: 1,
  privacy: "public",
  envVariables: {},
  frame: 10,
});
tsx
const { estimatedPrice, url, sizeInBytes } = await renderStillOnLambda({
  region: "us-east-1",
  functionName: "remotion-render-bds9aab",
  serveUrl:
    "https://remotionlambda-qg35eyp1s1.s3.eu-central-1.amazonaws.com/sites/bf2jrbfkw",
  composition: "MyVideo",
  inputProps: {},
  imageFormat: "png",
  maxRetries: 1,
  privacy: "public",
  envVariables: {},
  frame: 10,
});

Arguments​

An object with the following properties:

region​

In which region your Lambda function is deployed. It's highly recommended that your Remotion site is also in the same region.

functionName​

The name of the deployed Lambda function. Use deployFunction() to create a new function and getFunctions() to obtain currently deployed Lambdas.

serveUrl​

A URL pointing to a Remotion project. Use deploySite() to deploy a Remotion project.

composition​

The id of the composition you want to render..

inputProps​

React props that are passed to your composition. You define the shape of the props that the component accepts.

privacy​

One of:

  • "public" (default): The rendered still is publicly accessible under the S3 URL.
  • "private": The rendered still is not publicly available, but signed links can be created using presignUrl().
  • "no-acl" (available from v.3.1.7): The ACL option is not being set at all, this option is useful if you are writing to another bucket that does not support ACL using outName.

frame​

optional - default 0

Which frame of the composition should be rendered.

imageFormat?​

optional - default "png"

The image format that you want - either "png" or "jpeg".

quality?​

optional

Sets the quality of the generate JPEG images. Must be an integer between 0 and 100. Default is to leave it up to the browser, current default is 80.

Only applies if imageFormat is "jpeg", otherwise this option is invalid.

maxRetries?​

optional - default 1

How often a frame render may be retried until it fails.

envVariables?​

optional - default {}

See renderMedia() -> envVariables.

outName​

optional

The file name of the media output.

It can either be:

  • undefined - it will default to out plus the appropriate file extension, for example: renders/${renderId}/out.mp4. The outName must match /^([0-9a-zA-Z-!_.*'()/]+)$/g.
  • A string - it will get saved to the same S3 bucket as your site under the key renders/{renderId}/{outName}.
  • An object of shape { key: string; bucketName: string }. This will save the render to an arbitrary bucket with an arbitrary key. Note the following restrictions:
    • You must extend the default Remotion policy to allow read and write access to that bucket.
    • The bucket must be in the same region.
    • When calling APIs such as downloadMedia() or getRenderProgress(), you must pass the bucket name where the site resides in, not the bucket where the video gets saved.
    • The key must match /^([0-9a-zA-Z-!_.*'()]+)$/g and the bucketName must match /^(?=^.{3,63}$)(?!^(\d+\.)+\d+$)(^(([a-z0-9]|[a-z0-9][a-z0-9-]*[a-z0-9])\.)*([a-z0-9]|[a-z0-9][a-z0-9-]*[a-z0-9])$)/.

timeoutInMilliseconds?​

A number describing how long the render may take to resolve all delayRender() calls before it times out. Default: 30000

downloadBehavior​

optional, available since v3.1.5

How the output file should behave when accessed through the S3 output link in the browser.
Either:

  • {"type": "play-in-browser"} - the default. The video will play in the browser.
  • {"type": "download", fileName: null} or {"type": "download", fileName: "download.mp4"} - a Content-Disposition header will be added which makes the browser download the file. You can optionally override the filename.

chromiumOptions?​

Allows you to set certain Chromium / Google Chrome flags. See: Chromium flags.

disableWebSecurity​

boolean - default false

This will most notably disable CORS among other security features.

ignoreCertificateErrors​

boolean - default false

Results in invalid SSL certificates, such as self-signed ones, being ignored.

gl​

string

Select the OpenGL renderer backend for Chromium. Accepted values:

  • "angle",
  • "egl",
  • "swiftshader"
  • "swangle"
  • null - Chromiums default
note

The default for Lambda is "swangle", but null elsewhere.

Return value​

Returns a promise resolving to an object with the following properties:

bucketName​

The S3 bucket in which the video was saved.

output​

An AWS S3 URL where the output is available.

estimatedPrice​

Object containing roughly estimated information about how expensive this operation was.

sizeInBytes​

The size of the output image in bytes.

renderId​

A unique alphanumeric identifier for this render. Useful for obtaining status and finding the relevant files in the S3 bucket.

cloudWatchLogs​

Available from v3.2.10

A link to CloudWatch (if you haven't disabled it) that you can visit to see the logs for the render.

See also​