Video Thumbnail

Generates a thumbnail from a video. It accepts one of two values:

• An integer representing the time in seconds at which the thumbnail should be generated
• auto (default): Generates a thumbnail using the first non-black frame of the video

When video-thumbnail is specified, the fm parameter behavior is modified. Instead, fm becomes a required parameter that determines the output format of the thumbnail.

Additionally, it allows you to use any parameter from the Rendering API to transform and optimize the thumbnail, including (but not limited to) auto=compress,format, w, h, fit, and crop.