From 9a0b39a7dd33817f1b5068e0ad719aba4ddc00b7 Mon Sep 17 00:00:00 2001
From: Riza Sulistyo <riza@teluu.com>
Date: Thu, 18 Feb 2016 03:15:19 +0000
Subject: Misc (Re #1882): Add compile time option (PJMEDIA_HAS_DTMF_FLASH) to
 enable/disable DTMF flash as specified in rfc2833.

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@5242 74dad513-b988-da41-8d7b-12977e46ad98
---
 pjmedia/include/pjmedia/config.h        | 10 ++++++++++
 pjmedia/include/pjmedia/stream.h        |  3 ++-
 pjmedia/src/pjmedia/endpoint.c          |  4 ++++
 pjmedia/src/pjmedia/stream.c            |  6 ++++++
 pjsip-apps/src/pjsua/pjsua_app_legacy.c |  5 +++++
 pjsip/include/pjsua-lib/pjsua.h         |  5 +++--
 6 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/pjmedia/include/pjmedia/config.h b/pjmedia/include/pjmedia/config.h
index 8d739d2a..0dfd20ea 100644
--- a/pjmedia/include/pjmedia/config.h
+++ b/pjmedia/include/pjmedia/config.h
@@ -1321,6 +1321,7 @@
 #   endif
 #endif
 
+
 /**
  * Specify if libyuv is available.
  *
@@ -1330,6 +1331,15 @@
 #   define PJMEDIA_HAS_LIBYUV				0
 #endif
 
+
+/**
+ * Specify if dtmf flash in RFC 2833 is available.
+ */
+#ifndef PJMEDIA_HAS_DTMF_FLASH
+#   define PJMEDIA_HAS_DTMF_FLASH			1
+#endif
+
+
 /**
  * @}
  */
diff --git a/pjmedia/include/pjmedia/stream.h b/pjmedia/include/pjmedia/stream.h
index a2e5f207..d0594246 100644
--- a/pjmedia/include/pjmedia/stream.h
+++ b/pjmedia/include/pjmedia/stream.h
@@ -342,7 +342,8 @@ PJ_DECL(pj_status_t) pjmedia_stream_resume(pjmedia_stream *stream,
  *
  * @param stream	The media stream.
  * @param ascii_digit	String containing digits to be sent to remote as 
- *			described on RFC 2833 section 3.10. Character 'R' is 
+ *			described on RFC 2833 section 3.10. 
+ *			If PJMEDIA_HAS_DTMF_FLASH is enabled, character 'R' is
  *			used to represent the event type 16 (flash) as stated 
  *			in RFC 4730.
  *			Currently the maximum number of digits are 32.
diff --git a/pjmedia/src/pjmedia/endpoint.c b/pjmedia/src/pjmedia/endpoint.c
index 9a8dbb22..650c71d8 100644
--- a/pjmedia/src/pjmedia/endpoint.c
+++ b/pjmedia/src/pjmedia/endpoint.c
@@ -556,7 +556,11 @@ PJ_DEF(pj_status_t) pjmedia_endpt_create_audio_sdp(pjmedia_endpt *endpt,
 	/* Add fmtp */
 	attr = PJ_POOL_ZALLOC_T(pool, pjmedia_sdp_attr);
 	attr->name = pj_str("fmtp");
+#if defined(PJMEDIA_HAS_DTMF_FLASH) && PJMEDIA_HAS_DTMF_FLASH!= 0
 	attr->value = pj_str(PJMEDIA_RTP_PT_TELEPHONE_EVENTS_STR " 0-16");
+#else
+	attr->value = pj_str(PJMEDIA_RTP_PT_TELEPHONE_EVENTS_STR " 0-15");
+#endif
 	m->attr[m->attr_count++] = attr;
     }
 #endif
diff --git a/pjmedia/src/pjmedia/stream.c b/pjmedia/src/pjmedia/stream.c
index d799dfd4..1dd63c7d 100644
--- a/pjmedia/src/pjmedia/stream.c
+++ b/pjmedia/src/pjmedia/stream.c
@@ -1566,7 +1566,11 @@ static void handle_incoming_dtmf( pjmedia_stream *stream,
     }
 
     /* Ignore unknown event. */
+#if defined(PJMEDIA_HAS_DTMF_FLASH) && PJMEDIA_HAS_DTMF_FLASH!= 0
     if (event->event > 16) {
+#else
+    if (event->event > 15) {
+#endif    
 	PJ_LOG(5,(stream->port.info.name.ptr,
 		  "Ignored RTP pkt with bad DTMF event %d",
     		  event->event));
@@ -2786,10 +2790,12 @@ PJ_DEF(pj_status_t) pjmedia_stream_dial_dtmf( pjmedia_stream *stream,
 	    {
 		pt = 11;
 	    }
+#if defined(PJMEDIA_HAS_DTMF_FLASH) && PJMEDIA_HAS_DTMF_FLASH!= 0	    
 	    else if (dig == 'r')
 	    {
 		pt = 16;
 	    }
+#endif
 	    else
 	    {
 		status = PJMEDIA_RTP_EINDTMF;
diff --git a/pjsip-apps/src/pjsua/pjsua_app_legacy.c b/pjsip-apps/src/pjsua/pjsua_app_legacy.c
index dab8bfb9..e367eed5 100644
--- a/pjsip-apps/src/pjsua/pjsua_app_legacy.c
+++ b/pjsip-apps/src/pjsua/pjsua_app_legacy.c
@@ -1215,8 +1215,13 @@ static void ui_send_dtmf_2833()
 	pj_status_t status;
 	char buf[128];
 
+#if defined(PJMEDIA_HAS_DTMF_FLASH) && PJMEDIA_HAS_DTMF_FLASH!= 0	    	
 	if (!simple_input("DTMF strings to send (0-9*R#A-B)", buf,
 	    sizeof(buf)))
+#else
+	if (!simple_input("DTMF strings to send (0-9*#A-B)", buf,
+	    sizeof(buf)))
+#endif
 	{
 	    return;
 	}
diff --git a/pjsip/include/pjsua-lib/pjsua.h b/pjsip/include/pjsua-lib/pjsua.h
index c47d4c3c..6b6b5569 100644
--- a/pjsip/include/pjsua-lib/pjsua.h
+++ b/pjsip/include/pjsua-lib/pjsua.h
@@ -4811,11 +4811,12 @@ PJ_DECL(pj_status_t) pjsua_call_xfer_replaces(pjsua_call_id call_id,
 					      const pjsua_msg_data *msg_data);
 
 /**
- * Send DTMF digits to remote using RFC 2833 payload formats. 
+ * Send DTMF digits to remote using RFC 2833 payload formats.
  *
  * @param call_id	Call identification.
  * @param digits	DTMF string digits to be sent as described on RFC 2833 
- *			section 3.10. Character 'R' is used to represent the 
+ *			section 3.10. If PJMEDIA_HAS_DTMF_FLASH is enabled, 
+ *			character 'R' is used to represent the 
  *			event type 16 (flash) as stated in RFC 4730.
  *
  * @return		PJ_SUCCESS on success, or the appropriate error code.
-- 
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