diff --git a/src/io/video.js b/src/io/video.js
index 377369973..6c72be885 100644
--- a/src/io/video.js
+++ b/src/io/video.js
@@ -134,6 +134,15 @@ class Video {
 
     /**
      * Return frame data from the video feed in a specified dimensions, format, and mirroring.
+     *
+     * @param {object} frameInfo A descriptor of the frame you would like to receive.
+     * @param {Array.<number>} frameInfo.dimensions [width, height] array of numbers.  Defaults to [480,360]
+     * @param {boolean} frameInfo.mirror If you specificly want a mirror/non-mirror frame, defaults to the global
+     *                                   mirror state (ioDevices.video.mirror)
+     * @param {string} frameInfo.format Requested video format, available formats are 'image-data' and 'canvas'.
+     * @param {number} frameInfo.cacheTimeout Will reuse previous image data if the time since capture is less than
+     *                                        the cacheTimeout.  Defaults to 16ms.
+     *
      * @return {ArrayBuffer|Canvas|string|null} Frame data in requested format, null when errors.
      */
     getFrame ({