From 33d9b8066baaccd428e7aeeb51a2c7524bb9b260 Mon Sep 17 00:00:00 2001
From: Anthony Minessale <anthm@freeswitch.org>
Date: Wed, 29 Apr 2015 16:07:32 -0500
Subject: [PATCH] FS-7500: return cng frames when waiting for a key

---
 src/switch_core_media.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/switch_core_media.c b/src/switch_core_media.c
index 7ed3543d0d..d889a52f90 100644
--- a/src/switch_core_media.c
+++ b/src/switch_core_media.c
@@ -10430,6 +10430,9 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_read_video_frame(switch_core
 		if (switch_test_flag((*frame), SFF_WAIT_KEY_FRAME)) {
 			switch_core_session_request_video_refresh(session);
 			switch_clear_flag((*frame), SFF_WAIT_KEY_FRAME);
+			*frame = &runtime.dummy_cng_frame;
+			switch_yield(20000);
+			return SWITCH_STATUS_SUCCESS;
 		}
 
 		if (decode_status == SWITCH_STATUS_MORE_DATA || !(*frame)->img) {