From abd7ef817eb96193486f61848313d2e267c2b503 Mon Sep 17 00:00:00 2001
From: Terry Wilson <twilson@digium.com>
Date: Tue, 14 Jun 2011 17:03:37 +0000
Subject: Merged revisions 323370 via svnmerge from
 https://origsvn.digium.com/svn/asterisk/branches/1.8

........
  r323370 | twilson | 2011-06-14 09:33:55 -0700 (Tue, 14 Jun 2011) | 10 lines

  Add rtpkeepalives back to 1.8

  The RTP-engine conversion left out support for handling rtpkeepalives.
  This patch adds them back.

  (closes issue ASTERISK-17304)
  Reported by: lmadsen

  Review: https://reviewboard.asterisk.org/r/1226/
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@323374 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 include/asterisk/rtp_engine.h | 50 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

(limited to 'include')

diff --git a/include/asterisk/rtp_engine.h b/include/asterisk/rtp_engine.h
index f8bf74931..e04303ca6 100644
--- a/include/asterisk/rtp_engine.h
+++ b/include/asterisk/rtp_engine.h
@@ -377,6 +377,8 @@ struct ast_rtp_engine {
 	void (*stun_request)(struct ast_rtp_instance *instance, struct ast_sockaddr *suggestion, const char *username);
 	/*! Callback to get the transcodeable formats supported. result returned in ast_format_cap *result */
 	void (*available_formats)(struct ast_rtp_instance *instance, struct ast_format_cap *to_endpoint, struct ast_format_cap *to_asterisk, struct ast_format_cap *result);
+	/*! Callback to send CNG */
+	int (*sendcng)(struct ast_rtp_instance *instance, int level);
 	/*! Linked list information */
 	AST_RWLIST_ENTRY(ast_rtp_engine) entry;
 };
@@ -1712,6 +1714,24 @@ void ast_rtp_instance_set_timeout(struct ast_rtp_instance *instance, int timeout
  */
 void ast_rtp_instance_set_hold_timeout(struct ast_rtp_instance *instance, int timeout);
 
+/*!
+ * \brief Set the RTP keepalive interval
+ *
+ * \param instance The RTP instance
+ * \param period Value to set the keepalive interval to
+ *
+ * Example usage:
+ *
+ * \code
+ * ast_rtp_instance_set_keepalive(instance, 5000);
+ * \endcode
+ *
+ * This sets the RTP keepalive interval on 'instance' to be 5000.
+ *
+ * \since 1.8
+ */
+void ast_rtp_instance_set_keepalive(struct ast_rtp_instance *instance, int timeout);
+
 /*!
  * \brief Get the RTP timeout value
  *
@@ -1750,6 +1770,25 @@ int ast_rtp_instance_get_timeout(struct ast_rtp_instance *instance);
  */
 int ast_rtp_instance_get_hold_timeout(struct ast_rtp_instance *instance);
 
+/*!
+ * \brief Get the RTP keepalive interval
+ *
+ * \param instance The RTP instance
+ *
+ * \retval period Keepalive interval value
+ *
+ * Example usage:
+ *
+ * \code
+ * int interval = ast_rtp_instance_get_keepalive(instance);
+ * \endcode
+ *
+ * This gets the RTP keepalive interval value for the RTP instance pointed to by 'instance'.
+ *
+ * \since 1.8
+ */
+int ast_rtp_instance_get_keepalive(struct ast_rtp_instance *instance);
+
 /*!
  * \brief Get the RTP engine in use on an RTP instance
  *
@@ -1809,6 +1848,17 @@ struct ast_rtp_glue *ast_rtp_instance_get_active_glue(struct ast_rtp_instance *i
  */
 struct ast_channel *ast_rtp_instance_get_chan(struct ast_rtp_instance *instance);
 
+/*!
+ * \brief Send a comfort noise packet to the RTP instance
+ *
+ * \param instance The RTP instance
+ * \param level Magnitude of the noise level
+ *
+ * \retval 0 Success
+ * \retval non-zero Failure
+ */
+int ast_rtp_instance_sendcng(struct ast_rtp_instance *instance, int level);
+
 int ast_rtp_instance_add_srtp_policy(struct ast_rtp_instance *instance, struct ast_srtp_policy *policy);
 struct ast_srtp *ast_rtp_instance_get_srtp(struct ast_rtp_instance *instance);
 
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