@ilovevideoeditor/renderer-server — API reference

Render VideoJSON to an MP4 file or buffer from Node using Playwright + ffmpeg.

Classes

ServerRenderer

Methods

• constructor(videoJSON: VideoJSON): ServerRenderer
• cleanup(): Promise<void> — Release all resources: browser context, temporary files, and shared browser.
• renderAudio(): Promise<Buffer<ArrayBufferLike> | null> — Render the full audio track and return it as a WAV Buffer.

Opens the headless page on first call, then renders all audio layers into a single WAV buffer via the in-page BrowserRenderer.

• renderFrame(frame: number): Promise<Buffer<ArrayBufferLike>> — Render a single frame and return it as a JPEG screenshot Buffer.

Opens the headless page on first call, then renders the requested frame via the in-page BrowserRenderer.

• render(videoJSON: VideoJSON, options: RenderOptions): Promise<string | Buffer<ArrayBufferLike>> — Render a VideoJSON to a Buffer or file.

Functions

closeSharedBrowser

Close the shared browser instance. Call this when the server is shutting down to release resources.

closeSharedBrowser(): Promise<void>

Returns Promise<void>