PiP Video Source

Sets the source URL of the video to overlay as a picture-in-picture layer on the main video.

video-mark accepts a URL-encoded video URL. The overlay video is composited on top of the main video according to the position, size, and timing parameters in the video-mark-* family.

https://assets.imgix.net/main.mp4?fm=mp4&video-mark=https%3A%2F%2Fassets.imgix.net%2Foverlay.mp4&video-mark-w=320&video-mark-h=180&video-mark-align=bottom,right

Use video-mark[N] indexing (video-mark[1]) to add a second simultaneous overlay layer — the bare video-mark parameter is layer 0.

See the Video Picture-in-Picture overview for all available video-mark-* parameters.