From ebf176094740248f999a0b78fca00395c746adad Mon Sep 17 00:00:00 2001
From: Simon Morlat <simon.morlat@linphone.org>
Date: Tue, 7 Feb 2017 13:57:53 +0100
Subject: [PATCH] add new function to get stream stats

---
 coreapi/linphonecall.c  | 43 +++++++++++++++++++++++++++--------------
 include/linphone/call.h |  2 ++
 include/linphone/core.h |  8 ++++++++
 3 files changed, 38 insertions(+), 15 deletions(-)

diff --git a/coreapi/linphonecall.c b/coreapi/linphonecall.c
index 24a8ea09f..96ca7b541 100644
--- a/coreapi/linphonecall.c
+++ b/coreapi/linphonecall.c
@@ -4099,28 +4099,41 @@ static void update_local_stats(LinphoneCallStats *stats, MediaStream *stream) {
 	stats->clockrate = pt ? pt->clock_rate : 8000;
 }
 
-const LinphoneCallStats *linphone_call_get_audio_stats(LinphoneCall *call) {
-	LinphoneCallStats *stats = &call->stats[LINPHONE_CALL_STATS_AUDIO];
-	if (call->audiostream){
-		update_local_stats(stats,(MediaStream*)call->audiostream);
+static MediaStream *linphone_call_get_stream(LinphoneCall *call, LinphoneStreamType type){
+	switch(type){
+		case LinphoneStreamTypeAudio:
+			return &call->audiostream->ms;
+		case LinphoneStreamTypeVideo:
+			return &call->videostream->ms;
+		case LinphoneStreamTypeText:
+			return &call->textstream->ms;
+		case LinphoneStreamTypeUnknown:
+			break;
 	}
-	return stats;
+	return NULL;
+}
+
+const LinphoneCallStats *linphone_call_get_stats(LinphoneCall *call, LinphoneStreamType type){
+	if (type>=0 && type<=LinphoneStreamTypeText){
+		LinphoneCallStats *stats = &call->stats[type];
+		MediaStream *ms = linphone_call_get_stream(call, type);
+		if (ms) update_local_stats(stats, ms);
+		return stats;
+	}
+	ms_error("Invalid stream type %i", (int)type);
+	return NULL;
+}
+
+const LinphoneCallStats *linphone_call_get_audio_stats(LinphoneCall *call) {
+	return linphone_call_get_stats(call, LinphoneStreamTypeAudio);
 }
 
 const LinphoneCallStats *linphone_call_get_video_stats(LinphoneCall *call) {
-	LinphoneCallStats *stats = &call->stats[LINPHONE_CALL_STATS_VIDEO];
-	if (call->videostream){
-		update_local_stats(stats,(MediaStream*)call->videostream);
-	}
-	return stats;
+	return linphone_call_get_stats(call, LinphoneStreamTypeVideo);
 }
 
 const LinphoneCallStats *linphone_call_get_text_stats(LinphoneCall *call) {
-	LinphoneCallStats *stats = &call->stats[LINPHONE_CALL_STATS_TEXT];
-	if (call->textstream){
-		update_local_stats(stats,(MediaStream*)call->textstream);
-	}
-	return stats;
+	return linphone_call_get_stats(call, LinphoneStreamTypeText);
 }
 
 static bool_t ice_in_progress(LinphoneCallStats *stats){
diff --git a/include/linphone/call.h b/include/linphone/call.h
index 178af25c8..4be10ce39 100644
--- a/include/linphone/call.h
+++ b/include/linphone/call.h
@@ -571,6 +571,8 @@ LINPHONE_PUBLIC bool_t linphone_call_media_in_progress(LinphoneCall *call);
  */
 LINPHONE_PUBLIC void linphone_call_ogl_render(LinphoneCall *call, bool_t is_preview);
 
+
+
 /**
  * @}
  */
diff --git a/include/linphone/core.h b/include/linphone/core.h
index dcc7e3db0..3fbccd07b 100644
--- a/include/linphone/core.h
+++ b/include/linphone/core.h
@@ -546,6 +546,14 @@ typedef enum _LinphoneAddressFamily LinphoneAddressFamily;
 
 #include "linphone/call_stats.h"
 
+
+/**
+ * Return call statistics for a particular stream type.
+ * @param call the call
+ * @param type the stream type
+**/
+LINPHONE_PUBLIC const LinphoneCallStats *linphone_call_get_stats(LinphoneCall *call, LinphoneStreamType type);
+
 LINPHONE_PUBLIC const LinphoneCallStats *linphone_call_get_audio_stats(LinphoneCall *call);
 LINPHONE_PUBLIC const LinphoneCallStats *linphone_call_get_video_stats(LinphoneCall *call);
 LINPHONE_PUBLIC const LinphoneCallStats *linphone_call_get_text_stats(LinphoneCall *call);