MACROMEDIA FLASH 8-LEARNING ACTIONSCRIPT 2.0 IN FLASH - Page 610

610 Working with Images, Sound, and Video
9. Type the following code in the Actions panel:
var connection_nc:NetConnection = new NetConnection();
connection_nc.connect(null);
var stream_ns:NetStream = new NetStream(connection_nc);
my_video.attachVideo(stream_ns);
stream_ns.play("http://www.helpexamples.com/flash/video/
lights_short.flv");
this.createTextField("loaded_txt", this.getNextHighestDepth(), 10, 10,
160, 22);
var loaded_interval:Number = setInterval(checkBytesLoaded, 500,
stream_ns);
function checkBytesLoaded(my_ns:NetStream) {
var pctLoaded:Number = Math.round(my_ns.bytesLoaded / my_ns.bytesTotal
* 100);
loaded_txt.text = Math.round(my_ns.bytesLoaded / 1000) + " of " +
Math.round(my_ns.bytesTotal / 1000) + " KB loaded (" + pctLoaded +
"%)";
progressBar_mc.bar_mc._xscale = pctLoaded;
if (pctLoaded >= 100) {
clearInterval(loaded_interval);
}
}
10.
Select Control > Test Movie to test your code.
Another way to preload FLV files is to use the
NetStream.setBufferTime() method. This
method takes a single parameter that indicates the number of seconds of the FLV stream to
buffer before playback begins. For more information, see
setBufferTime
(NetStream.setBufferTime method), getBytesLoaded
(MovieClip.getBytesLoaded method)
, getBytesTotal
(MovieClip.getBytesTotal method)
, bytesLoaded (NetStream.bytesLoaded
property)
, bytesTotal (NetStream.bytesTotal property), and
setInterval function in the ActionScript 2.0 Language Reference
NOTE
If your progress bar loads instantly, the video has cached on your hard disk (either
from testing this example or loading it in a different procedure). If this occurs, upload
a FLV file to your server and load it instead.