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[teodorom]

Hi,
I'm trying to tame (and control) the state machine of MC, and I don't understand the events sequence.
When I load a .MPL into the "Playing Now" section, and I press "play" I get
08:51:34.206 MCC: NOTIFY_PLAYLIST_FILES_CHANGED PLAYSTATE_WAITING 1
08:51:34.407 MCC: NOTIFY_TRACK_CHANGE PLAYSTATE_WAITING 1 Sgt. Pepper's Lonely Hearts Club Band (Remix)
08:51:34.422 MCC: NOTIFY_PLAYERSTATE_CHANGE PLAYSTATE_WAITING 1 Sgt. Pepper's Lonely Hearts Club Band (Remix)
08:51:34.458 MCC: NOTIFY_TRACK_CHANGE PLAYSTATE_WAITING 1 Sgt. Pepper's Lonely Hearts Club Band (Remix)
08:51:34.775 MCC: NOTIFY_PLAYERSTATE_CHANGE PLAYSTATE_PLAYING 1 Sgt. Pepper's Lonely Hearts Club Band (Remix)
08:52:23.423 MCC: NOTIFY_PLAYERSTATE_CHANGE PLAYSTATE_WAITING 1 Sgt. Pepper's Lonely Hearts Club Band (Remix)
I then let the music flow so the next track is played automatically (and gapless):
08:52:23.553 MCC: NOTIFY_PLAYERSTATE_CHANGE PLAYSTATE_PLAYING 2 With A Little Help From My Friends (Remix)
08:52:23.723 MCC: NOTIFY_PLAYERSTATE_CHANGE PLAYSTATE_WAITING 2 With A Little Help From My Friends (Remix)
08:52:23.860 MCC: NOTIFY_PLAYERSTATE_CHANGE PLAYSTATE_PLAYING 2 With A Little Help From My Friends (Remix)
08:52:32.348 MCC: NOTIFY_TRACK_CHANGE PLAYSTATE_PLAYING 2 With A Little Help From My Friends (Remix)
Then I press the "Next" button:
08:52:46.522 MCC: NOTIFY_PLAYERSTATE_CHANGE PLAYSTATE_WAITING 3 Lucy In The Sky With Diamonds (Remix)
08:52:46.573 MCC: NOTIFY_TRACK_CHANGE PLAYSTATE_PLAYING 3 Lucy In The Sky With Diamonds (Remix)
08:52:46.609 MCC: NOTIFY_PLAYERSTATE_CHANGE PLAYSTATE_PLAYING 3 Lucy In The Sky With Diamonds (Remix)
08:52:46.788 MCC: NOTIFY_PLAYERSTATE_CHANGE PLAYSTATE_WAITING 3 Lucy In The Sky With Diamonds (Remix)
08:52:46.809 MCC: NOTIFY_PLAYERSTATE_CHANGE PLAYSTATE_PLAYING 3 Lucy In The Sky With Diamonds (Remix)

What I want to know is when

• a track is waiting to be played
• a track starts playing

The event sequence is very confusing: is there any other "State" I can check in order to eliminate that ambiguity ?
Thanks

[teodorom]

Just in case, the relevant (yes, I know, to get the above output the code could be much simpler, but this is the fragment I shall try to use to get what I want) piece of code is:
private void MJEvent(String s1, String s2, String s3)
        {
            MediaCenter.IMJCurPlaylistAutomation curPlaylist = mcRef.GetCurPlaylist();
            MediaCenter.IMJPlaybackAutomation playback = mcRef.GetPlayback();
 
            switch (s1)
            {
                case "MJEvent type: MCCommand":
                    switch (s2)
                    {
                        case "MCC: NOTIFY_TRACK_CHANGE":
                            Debug.WriteLine(DateTime.Now.ToString("hh:mm:ss.fff") + " MCC: NOTIFY_TRACK_CHANGE " + playback.State.ToString() +
                                " " + curPlaylist.GetFile(curPlaylist.Position).Tracknumber +
                                " " + curPlaylist.GetFile(curPlaylist.Position).Name);
                            break;

                        case "MCC: NOTIFY_PLAYERSTATE_CHANGE":
                            if ("PLAYSTATE_WAITING" == playback.State.ToString())
                            {
                                Debug.WriteLine(DateTime.Now.ToString("hh:mm:ss.fff") + " MCC: NOTIFY_PLAYERSTATE_CHANGE " + playback.State.ToString() +
                                    " " + curPlaylist.GetFile(curPlaylist.Position).Tracknumber +
                                    " " + curPlaylist.GetFile(curPlaylist.Position).Name);
                            }
                            if ("PLAYSTATE_PLAYING" == playback.State.ToString())
                            {
                                Debug.WriteLine(DateTime.Now.ToString("hh:mm:ss.fff") + " MCC: NOTIFY_PLAYERSTATE_CHANGE " + playback.State.ToString() +
                                    " " + curPlaylist.GetFile(curPlaylist.Position).Tracknumber +
                                    " " + curPlaylist.GetFile(curPlaylist.Position).Name);
                            }

                            break;

                        default:
                            // Unknown (new?) event
                            break;
                    }

                    break;

                default:
                    // Unknown (new?) type
                    break;
            }

[kensn]

First off i'm not going to be that much help. I have dabbled in plugins for MC a bit, but using VB.

Are you using the FireMJEvent to call your function?

From the WIKI:

Code: [Select]

Public Sub MC_FireMJEvent(ByVal s0 As String, ByVal s1 As String, ByVal s2 As String) Handles MC.FireMJEvent
     _RelayEvent = New RelayEvent(AddressOf MyRelayEvent)
     BeginInvoke(_RelayEvent, s0, s1, s2)
  End Sub
I've used the fire event to trigger a query on various tags on an event like track change and playstate

Ken.

[teodorom]

Thanks,
but I think we are doing the same thing.
In order to register the event handler I use the following code:
        public void Init(MediaCenter.MCAutomation mcRef)
        {
            try
            {
                this.mcRef = mcRef;
                // This tells MC to also call our MJEvent method
                this.mcRef.FireMJEvent += new MediaCenter.IMJAutomationEvents_FireMJEventEventHandler(MJEvent);
            }
            catch (Exception e)
            {
                errorHandler(e);
            }
        }
This way I catch the MC events.
My problem is that I catch too many events.
If you look at the sequences I have posted you see that the same event is fired more that one time.
What I need is the ability to react

• to a WAITING event by loading the address of the stream, and
• to a PLAYING event by deleting the address of the stream (once the play is started it's no more needed).

As I said this is to make piracy more difficult (the address of the stream will be visible only for a few seconds and only for the track that will be played).