[Linphone-developers] Streaming Audio over call on Android

[Neo Ware]

Hi all,

I am trying to stream audio over a call on Android.

I create the call as follows:

public void call() {

    try {

        String targetSip = "sip:address@hidden";

        LinphoneCore core = LinphoneManagerx.getLc();
        core.enableAudioMulticast(true);
        call = core.invite(targetSip);

        notifyStatus("Call in progress to " + targetSip);

        LinphonePlayer player = call.getPlayer();
        notifyStatus("Player status: " + player.getState().toString());
    }
    catch (LinphoneCoreException ex) {
        notifyError(ex.getMessage());
        ex.printStackTrace();
    }
}

Then to stream the audio I have tried both:

1) Using the LinphonePlayer as follows:

@Override
public void callState(LinphoneCore linphoneCore, LinphoneCall linphoneCall, LinphoneCall.State state, String s) {
    super.callState(linphoneCore, linphoneCall, state, s);

    notifyStatus(s);

    if (state == LinphoneCall.State.Connected) {
        LinphoneCore core = LinphoneManagerx.getLc();

        LinphonePlayer player = call.getPlayer();

        String file = getExternalFilesDir(null).getAbsolutePath() + "/mpthreetest.mp3";
        player.open(file, new LinphonePlayer.Listener() {
            @Override
            public void endOfFile(LinphonePlayer linphonePlayer) {

            }
        });

2) Directly use the multicast address:

@Override
public void callState(LinphoneCore linphoneCore, LinphoneCall linphoneCall, LinphoneCall.State state, String s) {
    super.callState(linphoneCore, linphoneCall, state, s);

    notifyStatus(s);

    if (state == LinphoneCall.State.Connected) {
        LinphoneCore core = LinphoneManagerx.getLc();
        notifyStatus("Multicast address: " + core.getAudioMulticastAddr());

        LinphonePlayer player = call.getPlayer();

        try {
            AudioStream stream = new AudioStream(InetAddress.getByName(core.getAudioMulticastAddr()));
        }
        catch (SocketException ex) {
            ex.printStackTrace();
            notifyError(ex.getMessage());
        }
        catch (UnknownHostException ex) {
            ex.printStackTrace();
            notifyError(ex.getMessage());
        }
    }

However in both cases I get:
Incompatible, check codecs or security settings...

I tried turning on the debug logs but it gave me no extra info. How can I achieve this?
Thanks,