Moyea FLV Player 2.0.2.94 Online Manual

Cue Point

What is cue point?

A cue point is a point at which the video player dispatches a cue point event while an FLV file plays. You can add cue points to an FLV file at times that you want to interact with another element on the web page. You might want to display text or a graphic, for example, or to synchronize with a Flash animation or affect the playing of the FLV file by pausing, seeking to a different point in time, or switching to a different FLV file. Cue points let you receive control in your ActionScript code and synchronize those points in your FLV file with other actions on the web page.

There are three types of cue points: navigation, event, and ActionScript. The navigation and event cue points are also known as embedded cue points because they are embedded in the FLV file stream and in the FLV file's metadata packet.

A navigation cue point allows you to seek to a particular frame in the FLV file because it creates a keyframe within the FLV file as near as possible to the time that you specify. A keyframe is a data segment that occurs between image frames in the FLV file stream. When you seek to a navigation cue point, the component seeks to the keyframe and starts the cuePoint event.

An event cue point enables you to synchronize a point in time within the FLV file with an external event on the web page. The cuePoint event occurs precisely at the specified time. You can embed navigation and event cue points in an FLV file via the CuePoint tab in FLV Editor Ultimate.

An ActionScript cue point is an external cue point that can be added either through the component's Flash Video Cue Points dialog box or through the FLVPlayback.addASCuePoint() method on Adobe Flash. The component stores and tracks ActionScript cue points apart from the FLV file, and consequently, they are less accurate than embedded cue points. ActionScript cue points are accurate to a tenth of a second. You can increase the accuracy of ActionScript cue points by lowering the value of the playheadUpdateInterval property because the component generates the cuePoint event for ActionScript cue points when the playhead updates.

Note:

FLV Editor Ultimate now only supports two types of cue points: navigation and event.

How to set cue point with FLV Editor Ultimate?

To set a cue point with this program, you can click "+" on the upper panel and set the cue point name, time, and type. And then, select the right cue point, and set the relative parameters, name and value, in the lower panel.

For example, to implement subtitles to the video, you can set as follows:

Cue Point Name: OnCuePoint

Time(millisecond): 3000

Type: Event (or Navigation)

CuePoint's Parameter

Name: subtitle

Value: Test. This is the subtitle I added.

Add another parameter and name it as "Duration", and set the value as "5000".

Then export the video and make an FLV player with the proper ActionScript command. While playing in the player, the subtitle, "Test. This is the subtitle I added.", will show at 3000th millisecond and last 5000 milliseconds.

How to show the cue point effects?

To trigger the cue point successfully, you must create an FLV player with Macromedia Flash 8 Professional, Adobe Flash CS3, or above. For detailed information, please refer to the Help document of Macromedia (Adobe) Flash. The player must have the commands to read and show the cue points.

Note: The original cue point information of the FLV will not be show in this program. You can only add new cue points and delete the newly added cue points. But as long as the player has the commands to read them, the effects will be shown at last.

 

 

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