User Guide

FLVPlayback class 653

Description

Method; seeks to a given time in the file, specified in seconds, with a precision of three

decimal places (milliseconds).

For several reasons, the

playheadTime property might not have the expected value

immediately after calling one of the seek methods or setting

playheadTime to cause seeking.

First, for a progressive download, you can seek only to a keyframe, so a seek takes you to the

time of the first keyframe after the specified time. (When streaming, a seek always goes to the

precise specified time even if the source FLV file doesn’t have a keyframe there.) Second,

seeking is asynchronous, so if you call a seek method or set the

playheadTime property,

playheadTime does not update immediately. To obtain the time after the seek is complete,

listen for the

seek event, which does not start until the playheadTime property has updated.

Example

The following example disables the FLV file from playing automatically, calls the seek()

method to set the playhead 3 seconds into the video, and begins playing the FLV file at

that point.

Drag an FLVPlayback component to the Stage, and give it an instance name of

my_FLVPlybk. Then add the following code to the Actions panel on Frame 1 of the

Timeline:

/**

Requires:

- FLVPlayback component on the Stage with an instance name of my_FLVPlybk

import mx.video.*;

my_FLVPlybk.autoPlay = false;

my_FLVPlybk.contentPath = "http://www.helpexamples.com/flash/video/

water.flv";

my_FLVPlybk.seek(3);

my_FLVPlybk.play();