4. Not explicitly stopping broadcast video before playing broadband

[hiren3897]

How to explicitly kill or stop the broadcast before starting the application

    try{
        var broadcast = $("#broadcast")[0];
        if( !broadcast ){
            $("body").append("<object type='video/broadcast' id='broadcast'></object>");
        }
        broadcast = $("#broadcast")[0];
        console.log( "Current broadcast.playState="+ broadcast.playState );
        if( broadcast.playState != 3 ) { // 0=unrealized, 1=connecting, 2=presenting, 3=stopped
            broadcast.stop();
            console.log("broadcast stopped");
                        appObject.show();
        }
    } catch(e){
        console.log("error stopping broadcast");
    }

Am I doing it the right way?

[jpiesing]

Others have more practical experience of this than me but ...

• When you just create a v/b o, it's in the unrealized state, you need to call bindToCurrentChannel before you can call stop.
• Both bindToCurrentChannel and stop are async so you should wait for playStateChange events after each method call before doing anything else.

[domagoj555]

There is a nice tutorial on how to handle the broadcast a/v object on the HbbTV developer site: https://developer.hbbtv.org/tutorials/handling-the-broadcast-av-object/