call: add a getter for local stream directions

include/baresip.h

@@ -270,6 +270,7 @@ const struct list *call_get_custom_hdrs(const struct call *call);
 void call_set_media_direction(struct call *call, enum sdp_dir a,
 			     enum sdp_dir v);
 void call_set_mdir(struct call *call, enum sdp_dir a, enum sdp_dir v);
+void call_get_mdir(struct call *call, enum sdp_dir *ap, enum sdp_dir *vp);
 void call_set_media_estdir(struct call *call, enum sdp_dir a, enum sdp_dir v);
 void call_start_answtmr(struct call *call, uint32_t ms);
 bool          call_supported(struct call *call, uint16_t tags);

src/call.c

@@ -3050,6 +3050,30 @@ void call_set_mdir(struct call *call, enum sdp_dir a, enum sdp_dir v)
 }
 
 
+/**
+ * Returns local audio and video directions
+ *
+ * @param call Call object
+ * @param ap   Pointer for returning local audio direction
+ * @param vp   Pointer for returning local video direction
+ */
+void call_get_mdir(struct call *call, enum sdp_dir *ap, enum sdp_dir *vp)
+{
+	struct stream *strm;
+
+	if (!call)
+		return;
+
+	strm = audio_strm(call_audio(call));
+	if (strm && ap)
+		*ap = stream_ldir(strm);
+
+	strm = video_strm(call_video(call));
+	if (strm && vp)
+		*vp = stream_ldir(strm);
+}
+
+
 /**
  * Set audio/video direction during pre-established for the established state
  *