Video

Video Object is used for playing Video clips in the different formats.

Modern browsers, which support HTML5 standard, are able to play some media files without additional plugins. However to play some outdated formats additional browser components could be required:

• Windows Media Player is used by default for playing MPEG, AVI, and WMV formats. For Firefox browser family it is recommended to install latest version of Microsoft Windows Media Player plugin from Port 25 Team (http://port25.technet.com/pages/windows-media-player-firefox-plugin-download.aspx).
• QuickTime Player is used by default for playing QuickTime MOV and 3gp formats. Note, that QuickTime Player must be installed on learner's computer (free download at http://www.apple.com/quicktime/).
• Flash Player is used to play FLV and F4V formats. You can get the latest free version of Adobe Flash Player at http://www.adobe.com) Please be aware that this technology is not supported on some mobile devices.

See also recommendations on using Video.

During insertion of the Video clip object, the content for this object is unknown to the CourseLab editor; therefore Video clip placeholder will be displayed in the editing mode instead.

Object Parameters

Specify Video source. There are two options:

1. File - file on local disk of your computer. Selected file will be automatically copied into the images folder of learning Module.
2. URL - full URL of the movie. In this case movie file will load from the specified server each time the Object is loaded.

IMPORTANT! If the movie loads from the server it may become the subject for browser security settings (cross-domain security).

Player selection option allows you to define desired player software explicitly. See also recommendations on using Video.

Display of the player controls can be further adjusted.

In case Movie Autostart check box is selected, Video clip is launched as soon as it is loaded, otherwise user should manually select Play button using video controls, or object methods.

Invisible mode enables to launch player software as a hidden element. This mode may be useful for playing audiofiles.

Object Events

Object is capable generating events with regards to the user's actions and interpretation of the actions by the object. When combined with actions events can be employed for building up intellectual behavior models for other objects depending on the current state of the Object. Events are available using CourseLab built-in events manipulation mechanism.

Event	Triggered Upon
on Playing Tick	Fires every second while the player is playing media. Use it with currentPosition property to create time-binded actions.
on Change Play State	Fires at the moment when playing state of the media is changed.
on Play Stopped	At the moment when playing of media stops (no matter was it learner's click or the end of media).
on Play Paused	At the moment when playing of media becomes paused.
on Play Started	At the moment when playing of media starts (position doesn't matter).
on Play Begin	At the moment when playing of media starts from the beginning.
on Play Resumed	At the moment when playing of media starts from the paused state.
on End Of Media	At the moment when playing of media stops on the end of media.
on Position Changed	Fires when current position is changed by slider control or method.

Object Methods

The following Methods can be used when working with this Object.

Method	Result
PLAY	Start playing clip.
STOP	Stops playing clip.
PAUSE	Pauses playing.
SET PROPERTY	Sets one of the player properties.
REPLACE SOURCE	Replaces video source of player.

Object Specific Properties

Along with common object properties, this object has some specific properties, that can be used in actions and in text substitutions (OBJ_ID below means current object ID):

IMPORTANT! Note, that these properties are available only for Windows Media Player and QuickTime Player.

Property	Returns	Syntax
autoStart	Returns 1 if AutoStart is set to true, 0 otherwise.	$OBJ_ID.autoStart
mute	Returns 1 if sound is muted, 0 otherwise.	$OBJ_ID.mute
volume	Returns current sound volume (range 0-100).	$OBJ_ID.volume
currentMedia	Returns current media name (if exists), empty string otherwise.	$OBJ_ID.currentMedia
duration	Returns full media duration in seconds.	$OBJ_ID.duration
currentPosition	Returns current position in seconds	$OBJ_ID.currentPosition
currentState	Returns current object state (tokens: "undefined", "stopped", "paused", "playing" ,"forward", "backward", "buffering", "waiting", "ended", "preparing", "ready", "reconnect").	$OBJ_ID.currentState
url	Returns current media URL if available.	$OBJ_ID.url