Macromedia flash media server 2-client-side actionscript language reference for flash media server 2 User Manual

12

Client-Side ActionScript Language Reference

Camera.bandwidth

Availability

■

Flash Player 6.

■

Flash Media Server (not required).

Usage

public bandwidth : Number  [read-only]

Description

Property (read-only); an integer that specifies the maximum amount of bandwidth the current 
outgoing video feed can use, in bytes. A value of 0 means that Flash Video can use as much 
bandwidth as needed to maintain the desired frame quality.

To set this property, use 

Example

The following example changes the maximum amount of bandwidth used by the camera feed. 
Create a new video instance by selecting New Video from the Library options menu. Add an 
instance to the Stage and give it the instance name 

my_video

. Add a NumericStepper 

component instance to the Stage and give it the instance name 

bandwidth_nstep

. Then add 

the following ActionScript to Frame 1 of the Timeline:

var bandwidth_nstep:mx.controls.NumericStepper;
var my_video:Video;
var my_cam:Camera = Camera.get();
my_video.attachVideo(my_cam);
this.createTextField("bandwidth_txt", this.getNextHighestDepth(), 0, 0, 

100, 22);

bandwidth_txt.autoSize = true;
this.onEnterFrame = function() {
    bandwidth_txt.text = "Camera is currently using "+my_cam.bandwidth+" 

bytes ("+Math.round(my_cam.bandwidth/1024)+" KB) bandwidth.";

};
//
bandwidth_nstep.minimum = 0;
bandwidth_nstep.maximum = 128;
bandwidth_nstep.stepSize = 16;
bandwidth_nstep.value = my_cam.bandwidth/1024;
function changeBandwidth(evt:Object) {
    my_cam.setQuality(evt.target.value/1024, 0);
}
bandwidth_nstep.addEventListener("change", changeBandwidth);