Merge the main set of changes from team/russell/chan_console.

Add a new console channel driver, chan_console, which is a console channel
driver that uses portaudio as a cross platform audio interface.  It was written
to provide a console channel driver that works with Mac CoreAudio, but it
supports a number of other audio interfaces, as well, including OSS and ALSA.
It could one day be the single console channel driver, but does not yet have
as many features as chan_oss.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@95412 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES

@@ -58,6 +58,8 @@ Dialplan functions
   * Added EXTENSION_STATE() dialplan function which allows retrieving the state
     of any extension.
   * Added SYSINFO() dialplan function which allows retrieval of system information
+  * Added a new dialplan function, DIALPLAN_EXISTS(), which allows you to check for
+     the existence of a dialplan target.
 
 CLI Changes
 -----------
@@ -136,11 +138,15 @@ MGCP changes
 ------------
   * Added separate settings for media QoS in mgcp.conf
 
-OSS Channel changes
+Console Channel Driver changes
 -------------------
-  * Added experimental support for video send&receive.
-    Requires SDL and ffmpeg/avcodec, plus Video4Linux or X11
-    to act as video source.
+  * Added experimental support for video send & receive to chan_oss.
+    This requires SDL and ffmpeg/avcodec, plus Video4Linux or X11 to act as
+    a video source.
+  * Added a new channel driver, chan_console, which uses portaudio as a cross
+     platform audio interface.  It was written as a channel driver that would
+     work with Mac CoreAudio, but portaudio supports a number of other audio
+     interfaces, as well.
 
 Phone channel changes (chan_phone)
 ----------------------------------
@@ -175,8 +181,8 @@ Zaptel channel driver (chan_zap) Changes
   * Added two new options: mwimonitor and mwimonitornotify.  These options allow
      you to enable MWI monitoring on FXO lines.  When the MWI state changes,
      the script specified in the mwimonitornotify option is executed.  An internal
-	 event indicating the new state of the mailbox is also generated, so that
-	 the normal MWI facilities in Asterisk work as usual.
+     event indicating the new state of the mailbox is also generated, so that
+     the normal MWI facilities in Asterisk work as usual.
 
 A new channel driver: Unistim
 -----------------------------
@@ -324,7 +330,7 @@ Music On Hold Changes
   * Support for realtime music on hold has been added.
   * In conjunction with the realtime music on hold, a general section has
     been added to musiconhold.conf, its sole variable is cachertclasses. If this
-	is set, then music on hold classes found in realtime will be cached in memory.
+    is set, then music on hold classes found in realtime will be cached in memory.
 
 AEL Changes
 -----------
@@ -423,5 +429,3 @@ Miscellaneous
   * A new option when starting a remote asterisk (rasterisk, asterisk -r) for
     specifying which socket to use to connect to the running Asterisk daemon
     (-s)
-  * Added a new dialplan function, DIALPLAN_EXISTS(), which allows you to check for
-     the existence of a dialplan target.

configs/console.conf.sample

+;
+; Configuration for chan_console, a cross-platform console channel driver.
+;
+
+[general]
+
+; Set this option to "yes" to enable automatically answering calls on the
+; console.  This is very useful if the console is used as an intercom. 
+; The default value is "no".
+;
+;autoanswer = no
+
+; Set the default context to use for outgoing calls.  This can be overridden by
+; dialing some extension@context, unless the overridecontext option is enabled.
+; The default is "default".
+;
+;context = default
+
+; Set the default extension to use for outgoing calls.  The default is "s".
+;
+;extension = s
+
+; Set the default CallerID for created channels.
+; 
+;callerid = MyName Here <(256) 428-6000>
+
+; Set the default language for created channels.
+;
+;language = en
+
+; If you set overridecontext to 'yes', then the whole dial string
+; will be interpreted as an extension, which is extremely useful
+; to dial SIP, IAX and other extensions which use the '@' character.
+; The default is "no".
+;
+;overridecontext = no	; if 'no', the last @ will start the context
+                        ; if 'yes' the whole string is an extension.
+
+
+; Default Music on Hold class to use when this channel is placed on hold in
+; the case that the music class is not set on the channel with
+; Set(CHANNEL(musicclass)=whatever) in the dialplan and the peer channel
+; putting this one on hold did not suggest a class to use.
+;
+;mohinterpret=default
+
+;------------------------------ JITTER BUFFER CONFIGURATION --------------------------
+; jbenable = yes              ; Enables the use of a jitterbuffer on the receiving side of an
+                              ; Console channel. Defaults to "no". An enabled jitterbuffer will
+                              ; be used only if the sending side can create and the receiving
+                              ; side can not accept jitter. The Console channel can't accept jitter,
+                              ; thus an enabled jitterbuffer on the receive Console side will always
+                              ; be used if the sending side can create jitter.
+
+; jbmaxsize = 200             ; Max length of the jitterbuffer in milliseconds.
+
+; jbresyncthreshold = 1000    ; Jump in the frame timestamps over which the jitterbuffer is
+                              ; resynchronized. Useful to improve the quality of the voice, with
+                              ; big jumps in/broken timestamps, usually sent from exotic devices
+                              ; and programs. Defaults to 1000.
+
+; jbimpl = fixed              ; Jitterbuffer implementation, used on the receiving side of a Console
+                              ; channel. Two implementations are currently available - "fixed"
+                              ; (with size always equals to jbmax-size) and "adaptive" (with
+                              ; variable size, actually the new jb of IAX2). Defaults to fixed.
+
+; jblog = no                  ; Enables jitterbuffer frame logging. Defaults to "no".
+;-----------------------------------------------------------------------------------

configs/modules.conf.sample

@@ -31,8 +31,9 @@ noload => pbx_kdeconsole.so
 ;
 load => res_musiconhold.so
 ;
-; Load either OSS or ALSA, not both
-; By default, load OSS only (automatically) and do not load ALSA
+; Load one of: chan_oss, alsa, or console (portaudio).
+; By default, load chan_oss only (automatically).
 ;
 noload => chan_alsa.so
 ;noload => chan_oss.so
+;noload => chan_console.so