/**
 * A video codec parameter can be either a String or a Hash.
 * @param {Object} param <code>vc_<codec>[ : <profile> : [<level>]]</code>
 *                       or <code>{ codec: 'h264', profile: 'basic', level: '3.1' }</code>
 * @return {String} <code><codec> : <profile> : [<level>]]</code> if a Hash was provided
 *                   or the param if a String was provided.
 *                   Returns null if param is not a Hash or String
 */
export declare function processVideoParams(param: any): any;