CODEC TWEAK

mod_sofia will now examine a variable in the channel to
see what the channel's originator was using for a codec and 
try to put that to the top of the list in the sdp.

if this new sofia profile param is set:
<param name="disable-transcoding" value="true"/>

All outbound calls will use *only* the codec that thier originator 
is using to ensure no transcoding.
(of course that could lead to a failed call where there is no way to do this, so use sparingly)



git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4073 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_utils.h

@@ -62,6 +62,11 @@ SWITCH_DECLARE(apr_status_t) switch_socket_recvfrom(apr_sockaddr_t *from, apr_so
 									apr_size_t *len);
 
 
+#define switch_codec2str(codec,buf,len) snprintf(buf, len, "%s@%uk@%ui", \
+                                                 codec->implementation->iananame, \
+                                                 codec->implementation->samples_per_second, \
+                                                 codec->implementation->microseconds_per_frame / 1000)
+
 #ifdef WIN32
 #define switch_is_file_path(file) (*(file +1) == ':' || *file == '/')
 #else