diff --git a/trunk/src/app/srs_app_rtc_conn.cpp b/trunk/src/app/srs_app_rtc_conn.cpp
index 793ec8bb8..3fc3a0bc5 100644
--- a/trunk/src/app/srs_app_rtc_conn.cpp
+++ b/trunk/src/app/srs_app_rtc_conn.cpp
@@ -1424,7 +1424,8 @@ srs_error_t SrsRtcPlayer::package_stap_a(SrsRtcSource* source, SrsSharedPtrMessa
 {
     srs_error_t err = srs_success;
 
-    SrsMetaCache* meta = dynamic_cast<SrsRtcFromRtmpBridger*>(source->bridger())->cached_meta();
+    SrsRtcFromRtmpBridger* bridger = dynamic_cast<SrsRtcFromRtmpBridger*>(source->bridger());
+    SrsMetaCache* meta = bridger->cached_meta();
     if (!meta) {
         return err;
     }
diff --git a/trunk/src/app/srs_app_rtc_source.cpp b/trunk/src/app/srs_app_rtc_source.cpp
index 8e5f1ce2b..3e25a8231 100644
--- a/trunk/src/app/srs_app_rtc_source.cpp
+++ b/trunk/src/app/srs_app_rtc_source.cpp
@@ -456,6 +456,11 @@ srs_error_t SrsRtcFromRtmpBridger::initialize(SrsRequest* r)
     return err;
 }
 
+SrsMetaCache* SrsRtcFromRtmpBridger::cached_meta()
+{
+    return meta;
+}
+
 srs_error_t SrsRtcFromRtmpBridger::on_publish()
 {
     srs_error_t err = srs_success;
@@ -476,6 +481,19 @@ srs_error_t SrsRtcFromRtmpBridger::on_publish()
     return err;
 }
 
+void SrsRtcFromRtmpBridger::on_unpublish()
+{
+    // TODO: FIXME: Should sync with bridger?
+    source_->on_unpublish();
+
+    rtc->on_unpublish();
+
+    // Reset the metadata cache, to make VLC happy when disable/enable stream.
+    // @see https://github.com/ossrs/srs/issues/1630#issuecomment-597979448
+    meta->update_previous_vsh();
+    meta->update_previous_ash();
+}
+
 srs_error_t SrsRtcFromRtmpBridger::on_audio(SrsSharedPtrMessage* msg)
 {
     srs_error_t err = srs_success;
@@ -528,21 +546,3 @@ srs_error_t SrsRtcFromRtmpBridger::on_video(SrsSharedPtrMessage* msg)
     return source_->on_video_imp(msg);
 }
 
-void SrsRtcFromRtmpBridger::on_unpublish()
-{
-    // TODO: FIXME: Should sync with bridger?
-    source_->on_unpublish();
-
-    rtc->on_unpublish();
-
-    // Reset the metadata cache, to make VLC happy when disable/enable stream.
-    // @see https://github.com/ossrs/srs/issues/1630#issuecomment-597979448
-    meta->update_previous_vsh();
-    meta->update_previous_ash();
-}
-
-SrsMetaCache* SrsRtcFromRtmpBridger::cached_meta()
-{
-    return meta;
-}
-
diff --git a/trunk/src/app/srs_app_rtc_source.hpp b/trunk/src/app/srs_app_rtc_source.hpp
index 733b2da95..b29afe78e 100644
--- a/trunk/src/app/srs_app_rtc_source.hpp
+++ b/trunk/src/app/srs_app_rtc_source.hpp
@@ -182,12 +182,12 @@ public:
     virtual ~SrsRtcFromRtmpBridger();
 public:
     virtual srs_error_t initialize(SrsRequest* r);
-    virtual srs_error_t on_publish();
-    virtual srs_error_t on_audio(SrsSharedPtrMessage* audio);
-    virtual srs_error_t on_video(SrsSharedPtrMessage* video);
-    virtual void on_unpublish();
     // For RTC, we need to package SPS/PPS(in cached meta) before each IDR.
     SrsMetaCache* cached_meta();
+    virtual srs_error_t on_publish();
+    virtual void on_unpublish();
+    virtual srs_error_t on_audio(SrsSharedPtrMessage* audio);
+    virtual srs_error_t on_video(SrsSharedPtrMessage* video);
 };
 
 #endif