NetStream class
93
Description
Event handler; invoked when the Flash Player receives descriptive information embedded in
the FLV file being played.
The Flash Video Exporter utility (version 1.1 or later) embeds a video's duration, creation
date, data rates, and other information into the video file itself. Different video encoders
embed different sets of metadata.
This handler is triggered after a call to the
NetStream.play()
method, but before the video
playhead has advanced.
In many cases, the duration value embedded in FLV metadata approximates the actual
duration but is not exact. In other words, it will not always match the value of the
NetStream.time
property when the playhead is at the end of the video stream.
Example
The code in this example starts by creating new NetConnection and NetStream objects. Then
it defines the
onMetaData()
handler for the NetStream object. The handler cycles through
every named property in the
infoObject
object that is received and prints the property's
name and value.
var nc:NetConnection = new NetConnection();
nc.connect(null);
var ns:NetStream = new NetStream(nc);
ns.onMetaData = function(infoObject:Object) {
for (var propName:String in infoObject) {
trace(pr " = " + infoObject[propName]);
}
};
ns.play("http://www.helpexamples.com/flash/video/water.flv");
The code in this example causes the following information to be displayed:
canSeekToEnd = true
videocodecid = 4
framerate = 15
videodatarate = 400
height = 215
width = 320
duration = 7.347
The list of properties varies depending on the software that was used to encode the FLV file.
