While the main Player experience is controlled using the settings defined in your Player configuration, additional runtime customization is achievable using client-side parameters.

Guide: How to use runtime Player parameters

Parameters	Default	Description	Type
`video`	undefined	The ID of the video to load.	string
`playlist`	undefined	The ID of the playlist to load.	string
`customConfig`	undefined	Define advertising configuration by passing in keys and values. More details. E.g. `customConfig[key]=values`	object
`scaleMode`	`fit`	To adjust the player’s video focus. Possible values: `fit` `fill` `fillLeft` `fillRight` `fillTop` `fillBottom`	enum
`mute`	`false`	Whether to mute the video or not. To note, enabling mute may impact monetization. The Player provides smart mute behavior, it tries to automatically start the video playback with sound. If this isn’t possible due to browser prevention, there is a fallback mechanism and the Player reattempts to play the video but with the sound set to mute. Possible values: `true` or `false`	boolean
`startTime`	`0`	Specify the time (in seconds) from which the video should start playing.	number
`loop`	`false`	To set the video to loop. More details. Possible values: `true` or `false`	boolean
`defaultFullscreenOrientation`	`Orientation.Landscape`	Specify which orientation should be used for fullscreen. Possible values: `Landscape` `ReverseLandscape` `Portrait` `ReversePortrait`	enum