diff --git a/trunk/src/app/srs_app_rtc_server.cpp b/trunk/src/app/srs_app_rtc_server.cpp
index d4996de4c..40bc4dae9 100644
--- a/trunk/src/app/srs_app_rtc_server.cpp
+++ b/trunk/src/app/srs_app_rtc_server.cpp
@@ -78,6 +78,7 @@ extern SrsPps* _srs_pps_rmnack;
 extern SrsPps* _srs_pps_objs_rtps;
 extern SrsPps* _srs_pps_objs_rraw;
 extern SrsPps* _srs_pps_objs_rfua;
+extern SrsPps* _srs_pps_objs_rbuf;
 
 SrsRtcBlackhole::SrsRtcBlackhole()
 {
@@ -684,9 +685,9 @@ srs_error_t SrsRtcServer::notify(int type, srs_utime_t interval, srs_utime_t tic
     static char buf[128];
 
     string objs_desc;
-    _srs_pps_objs_rtps->update(); _srs_pps_objs_rraw->update(); _srs_pps_objs_rfua->update();
-    if (_srs_pps_objs_rtps->r10s() || _srs_pps_objs_rraw->r10s() || _srs_pps_objs_rfua->r10s()) {
-        snprintf(buf, sizeof(buf), ", objs=%d,%d,%d", _srs_pps_objs_rtps->r10s(), _srs_pps_objs_rraw->r10s(), _srs_pps_objs_rfua->r10s());
+    _srs_pps_objs_rtps->update(); _srs_pps_objs_rraw->update(); _srs_pps_objs_rfua->update(); _srs_pps_objs_rbuf->update();
+    if (_srs_pps_objs_rtps->r10s() || _srs_pps_objs_rraw->r10s() || _srs_pps_objs_rfua->r10s() || _srs_pps_objs_rbuf->r10s()) {
+        snprintf(buf, sizeof(buf), ", objs=%d,%d,%d,%d", _srs_pps_objs_rtps->r10s(), _srs_pps_objs_rraw->r10s(), _srs_pps_objs_rfua->r10s(), _srs_pps_objs_rbuf->r10s());
         objs_desc = buf;
     }
 
diff --git a/trunk/src/kernel/srs_kernel_rtc_rtp.cpp b/trunk/src/kernel/srs_kernel_rtc_rtp.cpp
index 352fed02e..cbbe7741a 100644
--- a/trunk/src/kernel/srs_kernel_rtc_rtp.cpp
+++ b/trunk/src/kernel/srs_kernel_rtc_rtp.cpp
@@ -39,6 +39,7 @@ using namespace std;
 SrsPps* _srs_pps_objs_rtps = new SrsPps();
 SrsPps* _srs_pps_objs_rraw = new SrsPps();
 SrsPps* _srs_pps_objs_rfua = new SrsPps();
+SrsPps* _srs_pps_objs_rbuf = new SrsPps();
 
 /* @see https://tools.ietf.org/html/rfc1889#section-5.1
   0                   1                   2                   3
@@ -867,6 +868,8 @@ char* SrsRtpPacket2::wrap(int size)
     srs_freep(cache_buffer_);
     cache_buffer_ = new SrsBuffer(buf, size);
 
+    ++_srs_pps_objs_rbuf->sugar;
+
     return buf;
 }