Question

I’ve ran into a weird problem while trying to send a JSON command to my company’s flash player. Basically, i am unable to pass a playlist to this player – nothing happens – using the following command:

player.sendEvent("LOAD_PLAYLIST", json_str);

but the weirdest part is that if I print the entire command using Firebug’s console.log, copy it and paste it into the code (thus hardcoding the playlist), everything works like a charm.

For instance, the following code:

player.sendEvent("LOAD_PLAYLIST", "{\"streams\": [{\"src\": \"rtmp:\/\/xxx.xxx.xx:80\/redirectvodxxx\/nas2.share\/h264\/512x384\/progname1\/prog_1_20110804.mp4\"},{\"src\": \"rtmp:\/\/xxx.xxx.xx:80\/redirectvodxxx\/nas2.share\/h264\/512x384\/progname2\/prog_2_20110804.mp4\"},{\"src\": \"rtmp:\/\/xxx.xxx.xx:80\/redirectvodxxx\/nas2.share\/h264\/512x384\/progname3\/prog_3_20110804.mp4\"}]}");

was obtained using

console.log('[loadNewListofContents] playing the following content list: player.sendEvent(\"LOAD_PLAYLIST\", ' + json_str.toString() + ');');

and if i hardcode it, it works!
I’ve tried all the toString() tricks I can think of (ex: json_str.toString(), ‘”‘ + json_str.toString() + ‘”‘, etc…) but so far no such luck.

Any ideas?
Thanks in advance!

Answer 1

the code you posted

player.sendEvent("LOAD_PLAYLIST", "{\"streams\": [{\"src\": \"rtmp:\/\/xxx.xxx.xx:80\/redirectvodxxx\/nas2.share\/h264\/512x384\/progname1\/prog_1_20110804.mp4\"},{\"src\": \"rtmp:\/\/xxx.xxx.xx:80\/redirectvodxxx\/nas2.share\/h264\/512x384\/progname2\/prog_2_20110804.mp4\"},{\"src\": \"rtmp:\/\/xxx.xxx.xx:80\/redirectvodxxx\/nas2.share\/h264\/512x384\/progname3\/prog_3_20110804.mp4\"}]}");

Is a string that is using “\” to escape quotes AS3 has known issues with that

Just pass the JavaScript object straight to the SWf.

// And in your AS3 code add this
if(ExternalInterface.available){
  ExternalInterface.addCallBack("AS3functiontocall", AS3functiontocall );
}

function AS3functiontocall( var obj:Object ):void{
     trace( obj.streams[0] ); // might have to eval or JSON.decode the obj
}


// JavaScriptcode should look something like 
function sendList( ){
  var container;
  if (navigator.appName.indexOf("Microsoft") >= 0){
    container = document;
  }else{
    container = window;
  }
  var obj = {
      "streams": [
                   {"src": "rtmp://xxx.xxx.xx:80/redirectvodxxx/nas2.share/h264/512x384/progname1/prog_1_20110804.mp4"},
                   {"src": "rtmp://xxx.xxx.xx:80/redirectvodxxx/nas2.share/h264/512x384/progname2/prog_2_20110804.mp4"},
                   {"src": "rtmp://xxx.xxx.xx:80/redirectvodxxx/nas2.share/h264/512x384/progname3/prog_3_20110804.mp4"}
                 ]
  }

  var result = container["yourswfnamehere"].AS3functiontocall ( obj );
}

This code is untested but it should give you an idea