In this tutorial I will use FlashVars to pass an array containing cue points to a MediaPlayback component into flash.
In this tutorial I am going to use it to stream mp3 files.
You can of course use it with flv files too.
First, create a new flash document (550x400), open the components window and drag a MediaPlayback component and a button to the stage.
Label the button "Cue" or what ever you want, and give it a instance name of "btn1".
Now, give the MediaPlayback component a instance name of "player", and go to its parameters and set contentPath to a mp3 file
(ex. http://www.example.com/my_audio.mp3).
Also set mediaType to MP3, and controlPolicy to On.
Let is select the first frame in timeline and open the actions panel.
First add:
stop();
var cue:Array = cuepoints.split(",");
current = 0;
Explanation:
stop();
Stop the movie.
var cue:Array = cuepoints.split(",");
Create a new array of the variable cuepoints.
The split function splits the variable at every comma.
This because our variable will look something like this:
"10,40,50,200,420".
The variable cuepoints is passed trough FlashVar, I will get back to this later.
Add this code under the previous one:
_root.btn1.onRelease = function() {
_root.player.play(cue[current]);
current++;
if (current>=cue.length) {
current = 0;
}
};
Explanation:
_root.btn1.onRelease = function() {
This line checks if the button is pressed (or here, released).
_root.player.play(cue[current]);
Tell the player to play from the next cue point in our "cue" array.
current++;
Increase the current variable with 1.
So when we press the button again, it will play from the next cuepoint in our array.
if (current>=cue.length) {
current = 0;
}
If the current cue point is greater or equal to the number of total cue points, set the first cue point as next.
};
Close the onRelease function.
Full code:
stop();
var cue:Array = cuepoints.split(",");
current = 0;
_root.btn1.onRelease = function() {
_root.player.play(cue[current]);
current++;
if (current>=cue.length) {
current = 0;
}
};
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