From 1e2331c5ada065b229aef9b41aec89bd14fbb1f7 Mon Sep 17 00:00:00 2001
From: Boris Grozev <boris@jitsi.org>
Date: Fri, 11 Apr 2014 18:44:00 +0200
Subject: Describes the local source in a 'source' child element of the
 'description' elements when sending a jingle session-accept.

---
 .../protocol/media/CallPeerMediaHandler.java       | 53 ++++++++++++++++++++++
 1 file changed, 53 insertions(+)

(limited to 'src/net/java/sip/communicator/service/protocol/media')

diff --git a/src/net/java/sip/communicator/service/protocol/media/CallPeerMediaHandler.java b/src/net/java/sip/communicator/service/protocol/media/CallPeerMediaHandler.java
index 788dc60..6235a13 100644
--- a/src/net/java/sip/communicator/service/protocol/media/CallPeerMediaHandler.java
+++ b/src/net/java/sip/communicator/service/protocol/media/CallPeerMediaHandler.java
@@ -236,6 +236,12 @@ public abstract class CallPeerMediaHandler<T extends MediaAwareCallPeer<?,?,?>>
     private VideoMediaStream videoStream;
 
     /**
+     * Identifier used to group the audio stream and video stream towards
+     * the <tt>CallPeer</tt> in SDP.
+     */
+    private String msLabel = UUID.randomUUID().toString();
+
+    /**
      * The <tt>VideoListener</tt> which listens to the video
      * <tt>MediaStream</tt> of this instance for changes in the availability of
      * visual <tt>Component</tt>s displaying remote video and re-fires them as
@@ -1952,6 +1958,53 @@ public abstract class CallPeerMediaHandler<T extends MediaAwareCallPeer<?,?,?>>
         throws OperationFailedException;
 
     /**
+     * Returns the value to use for the 'msid' source-specific SDP media
+     * attribute (RFC5576) for the stream of type <tt>mediaType</tt> towards
+     * the <tt>CallPeer</tt>. It consist of a group identifier (shared between
+     * the local audio and video streams towards the <tt>CallPeer</tt>) and an
+     * identifier for the particular stream, separated by a space.
+     *
+     * {@see http://tools.ietf.org/html/draft-ietf-mmusic-msid}
+     *
+     * @param mediaType the media type of the stream for which to return the
+     * value for 'msid'
+     * @return the value to use for the 'msid' source-specific SDP media
+     * attribute (RFC5576) for the stream of type <tt>mediaType</tt> towards
+     * the <tt>CallPeer</tt>.
+     */
+    public String getMsid(MediaType mediaType)
+    {
+        return msLabel + " " + getLabel(mediaType);
+    }
+
+    /**
+     * Returns the value to use for the 'label' source-specific SDP media
+     * attribute (RFC5576) for the stream of type <tt>mediaType</tt> towards
+     * the <tt>CallPeer</tt>.
+     *
+     * @param mediaType the media type of the stream for which to return the
+     * value for 'label'
+     * @return the value to use for the 'label' source-specific SDP media
+     * attribute (RFC5576) for the stream of type <tt>mediaType</tt> towards
+     * the <tt>CallPeer</tt>.
+     */
+     public String getLabel(MediaType mediaType)
+    {
+        return mediaType.toString();
+    }
+
+    /**
+     * Returns the value to use for the 'mslabel' source-specific SDP media
+     * attribute (RFC5576).
+     * @return the value to use for the 'mslabel' source-specific SDP media
+     * attribute (RFC5576).
+     */
+    public String getMsLabel()
+    {
+        return msLabel;
+    }
+
+    /**
      * Represents the <tt>PropertyChangeListener</tt> which listens to changes
      * in the values of the properties of the <tt>Call</tt> of {@link #peer}.
      * Remembers the <tt>Call</tt> it has been added to because <tt>peer</tt>
-- 
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