diff --git a/src/Extension/Factory.cpp b/src/Extension/Factory.cpp
index b1614bf9..9ba2168b 100644
--- a/src/Extension/Factory.cpp
+++ b/src/Extension/Factory.cpp
@@ -122,11 +122,12 @@ RtpCodec::Ptr Factory::getRtpEncoderBySdp(const Sdp::Ptr &sdp) {
         case CodecL16 :
         case CodecOpus : return std::make_shared<CommonRtpEncoder>(codec_id, ssrc, mtu, sample_rate, pt, interleaved);
         case CodecG711A :
-        case CodecG711U : 
-            if(pt == Rtsp::PT_PCMA || pt == Rtsp::PT_PCMU){
-                return std::make_shared<G711RtpEncoder>(codec_id, ssrc, mtu, sample_rate, pt, interleaved,1);
+        case CodecG711U : {
+            if (pt == Rtsp::PT_PCMA || pt == Rtsp::PT_PCMU) {
+                return std::make_shared<G711RtpEncoder>(codec_id, ssrc, mtu, sample_rate, pt, interleaved, 1);
             }
             return std::make_shared<CommonRtpEncoder>(codec_id, ssrc, mtu, sample_rate, pt, interleaved);
+        }
         default : WarnL << "暂不支持该CodecId:" << codec_id; return nullptr;
     }
 }
diff --git a/src/Extension/G711Rtp.cpp b/src/Extension/G711Rtp.cpp
index 14b256b6..49edce5b 100644
--- a/src/Extension/G711Rtp.cpp
+++ b/src/Extension/G711Rtp.cpp
@@ -1,30 +1,34 @@
 #include "G711Rtp.h"
 
-G711RtpEncoder::G711RtpEncoder(CodecId codec, uint32_t ssrc, uint32_t mtu_size,
-                                   uint32_t sample_rate,  uint8_t payload_type, uint8_t interleaved,uint32_t channels)
-        : CommonRtpDecoder(codec), RtpInfo(ssrc, mtu_size, sample_rate, payload_type, interleaved) {
-        _cache_frame = FrameImp::create();
-        _cache_frame->_codec_id = codec;
-        _channels = channels;
+namespace mediakit {
+
+G711RtpEncoder::G711RtpEncoder(
+    CodecId codec, uint32_t ssrc, uint32_t mtu_size, uint32_t sample_rate, uint8_t payload_type, uint8_t interleaved,
+    uint32_t channels)
+    : CommonRtpDecoder(codec)
+    , RtpInfo(ssrc, mtu_size, sample_rate, payload_type, interleaved) {
+    _cache_frame = FrameImp::create();
+    _cache_frame->_codec_id = codec;
+    _channels = channels;
 }
 
-bool G711RtpEncoder::inputFrame(const Frame::Ptr &frame){
-    auto dur = (_cache_frame->size()-_cache_frame->prefixSize())/(8*_channels);
-    auto next_pts = _cache_frame->pts()+dur;
-    if(next_pts == 0){
+bool G711RtpEncoder::inputFrame(const Frame::Ptr &frame) {
+    auto dur = (_cache_frame->size() - _cache_frame->prefixSize()) / (8 * _channels);
+    auto next_pts = _cache_frame->pts() + dur;
+    if (next_pts == 0) {
         _cache_frame->_pts = frame->pts();
-    }else{
-        if((next_pts+20) < frame->pts()){// 有丢包超过20ms
+    } else {
+        if ((next_pts + 20) < frame->pts()) { // 有丢包超过20ms
             _cache_frame->_pts = frame->pts() - dur;
         }
     }
-    _cache_frame->_buffer.append(frame->data() + frame->prefixSize(),frame->size() - frame->prefixSize());
+    _cache_frame->_buffer.append(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
 
     auto stamp = _cache_frame->pts();
     auto ptr = _cache_frame->data() + _cache_frame->prefixSize();
     auto len = _cache_frame->size() - _cache_frame->prefixSize();
     auto remain_size = len;
-    auto max_size = 160*_channels; //20 ms per rtp 
+    auto max_size = 160 * _channels; // 20 ms per rtp
     int n = 0;
     bool mark = false;
     while (remain_size >= max_size) {
@@ -40,7 +44,9 @@ bool G711RtpEncoder::inputFrame(const Frame::Ptr &frame){
         ptr += rtp_size;
         remain_size -= rtp_size;
     }
-    _cache_frame->_buffer.erase(0,n*max_size);
-    _cache_frame->_pts += 20*n;
+    _cache_frame->_buffer.erase(0, n * max_size);
+    _cache_frame->_pts += 20 * n;
     return len > 0;
-}
\ No newline at end of file
+}
+
+} // namespace mediakit
\ No newline at end of file
diff --git a/src/Extension/G711Rtp.h b/src/Extension/G711Rtp.h
index 3b66bdd8..28f9b15f 100644
--- a/src/Extension/G711Rtp.h
+++ b/src/Extension/G711Rtp.h
@@ -15,17 +15,16 @@
 #include "CommonRtp.h"
 #include "Rtsp/RtpCodec.h"
 
-namespace mediakit{
-
+namespace mediakit {
 
 /**
  * G711 rtp编码类
  */
 class G711RtpEncoder : public CommonRtpDecoder, public RtpInfo {
 public:
-    typedef std::shared_ptr <G711RtpEncoder> Ptr;
+    using Ptr = std::shared_ptr<G711RtpEncoder>;
 
-    ~G711RtpEncoder() override {}
+    ~G711RtpEncoder() override = default;
 
     /**
      * 构造函数
@@ -36,15 +35,17 @@ public:
      * @param payload_type pt类型
      * @param interleaved rtsp interleaved 值
      */
-    G711RtpEncoder(CodecId codec, uint32_t ssrc, uint32_t mtu_size, uint32_t sample_rate, uint8_t payload_type, uint8_t interleaved,uint32_t channels);
+    G711RtpEncoder(CodecId codec, uint32_t ssrc, uint32_t mtu_size, uint32_t sample_rate, uint8_t payload_type,
+                   uint8_t interleaved, uint32_t channels);
 
     /**
      * 输入帧数据并编码成rtp
      */
     bool inputFrame(const Frame::Ptr &frame) override;
+
 private:
-    FrameImp::Ptr _cache_frame;
     uint32_t _channels = 1;
+    FrameImp::Ptr _cache_frame;
 };
 
 }//namespace mediakit