diff --git a/src/Extension/H264.cpp b/src/Extension/H264.cpp
index 94dd3686..3426f5cc 100644
--- a/src/Extension/H264.cpp
+++ b/src/Extension/H264.cpp
@@ -179,32 +179,32 @@ bool H264Track::inputFrame_l(const Frame::Ptr &frame) {
     int type = H264_TYPE(frame->data()[frame->prefixSize()]);
     bool ret = true;
     switch (type) {
-    case H264Frame::NAL_SPS: {
-        _sps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
-        _latest_is_config_frame = true;
-        ret = VideoTrack::inputFrame(frame);
-        break;
-    }
-    case H264Frame::NAL_PPS: {
-        _pps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
-        _latest_is_config_frame = true;
-        ret = VideoTrack::inputFrame(frame);
-        break;
-    }
-    default:
-        // 避免识别不出关键帧
-        if (_latest_is_config_frame && !frame->dropAble()) {
-            if (!frame->keyFrame()) {
-                const_cast<Frame::Ptr &>(frame) = std::make_shared<FrameCacheAble>(frame, true);
+        case H264Frame::NAL_SPS: {
+            _sps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
+            _latest_is_config_frame = true;
+            ret = VideoTrack::inputFrame(frame);
+            break;
+        }
+        case H264Frame::NAL_PPS: {
+            _pps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
+            _latest_is_config_frame = true;
+            ret = VideoTrack::inputFrame(frame);
+            break;
+        }
+        default:
+            // 避免识别不出关键帧
+            if (_latest_is_config_frame && !frame->dropAble()) {
+                if (!frame->keyFrame()) {
+                    const_cast<Frame::Ptr &>(frame) = std::make_shared<FrameCacheAble>(frame, true);
+                }
             }
-        }
-        // 判断是否是I帧, 并且如果是,那判断前面是否插入过config帧, 如果插入过就不插入了
-        if (frame->keyFrame() && !_latest_is_config_frame) {
-            insertConfigFrame(frame);
-        }
-        _latest_is_config_frame = false;
-        ret = VideoTrack::inputFrame(frame);
-        break;
+            // 判断是否是I帧, 并且如果是,那判断前面是否插入过config帧, 如果插入过就不插入了
+            if (frame->keyFrame() && !_latest_is_config_frame) {
+                insertConfigFrame(frame);
+            }
+            _latest_is_config_frame = false;
+            ret = VideoTrack::inputFrame(frame);
+            break;
     }
 
     if (_width == 0 && ready()) {
diff --git a/srt/Packet.cpp b/srt/Packet.cpp
index 2e4bd8e1..f3649fca 100644
--- a/srt/Packet.cpp
+++ b/srt/Packet.cpp
@@ -321,16 +321,10 @@ bool HandshakePacket::loadExtMessage(uint8_t *buf, size_t len) {
         type = loadUint16(ptr);
         length = loadUint16(ptr + 2);
         switch (type) {
-        case HSExt::SRT_CMD_HSREQ:
-        case HSExt::SRT_CMD_HSRSP:
-            ext = std::make_shared<HSExtMessage>();
-            break;
-        case HSExt::SRT_CMD_SID:
-            ext = std::make_shared<HSExtStreamID>();
-            break;
-        default:
-            WarnL << "not support ext " << type;
-            break;
+            case HSExt::SRT_CMD_HSREQ:
+            case HSExt::SRT_CMD_HSRSP: ext = std::make_shared<HSExtMessage>(); break;
+            case HSExt::SRT_CMD_SID: ext = std::make_shared<HSExtStreamID>(); break;
+            default: WarnL << "not support ext " << type; break;
         }
         if (ext) {
             if (ext->loadFromData(ptr, length * 4 + 4)) {
diff --git a/webrtc/SrtpSession.cpp b/webrtc/SrtpSession.cpp
index 698b1f7b..8aaa368a 100644
--- a/webrtc/SrtpSession.cpp
+++ b/webrtc/SrtpSession.cpp
@@ -123,21 +123,10 @@ DepLibSRTP::DepLibSRTP() {
     err = srtp_install_event_handler([](srtp_event_data_t *data) {
         MS_TRACE();
         switch (data->event) {
-        case event_ssrc_collision:
-            MS_WARN_TAG(srtp, "SSRC collision occurred");
-            break;
-
-        case event_key_soft_limit:
-            MS_WARN_TAG(srtp, "stream reached the soft key usage limit and will expire soon");
-            break;
-
-        case event_key_hard_limit:
-            MS_WARN_TAG(srtp, "stream reached the hard key usage limit and has expired");
-            break;
-
-        case event_packet_index_limit:
-            MS_WARN_TAG(srtp, "stream reached the hard packet limit (2^48 packets)");
-            break;
+            case event_ssrc_collision: MS_WARN_TAG(srtp, "SSRC collision occurred"); break;
+            case event_key_soft_limit: MS_WARN_TAG(srtp, "stream reached the soft key usage limit and will expire soon"); break;
+            case event_key_hard_limit: MS_WARN_TAG(srtp, "stream reached the hard key usage limit and has expired"); break;
+            case event_packet_index_limit: MS_WARN_TAG(srtp, "stream reached the hard packet limit (2^48 packets)"); break;
         }
     });