diff --git a/src/Extension/AAC.cpp b/src/Extension/AAC.cpp
index ea57d643..1047a8b3 100644
--- a/src/Extension/AAC.cpp
+++ b/src/Extension/AAC.cpp
@@ -246,7 +246,7 @@ AACTrack::AACTrack(const string &aac_cfg) {
     onReady();
 }
 
-const string &AACTrack::getAacCfg() const {
+const string &AACTrack::getConfig() const {
     return _cfg;
 }
 
@@ -342,7 +342,7 @@ Sdp::Ptr AACTrack::getSdp() {
         WarnL << getCodecName() << " Track未准备好";
         return nullptr;
     }
-    return std::make_shared<AACSdp>(getAacCfg(), getAudioSampleRate(), getAudioChannel(), getBitRate() / 1024);
+    return std::make_shared<AACSdp>(getConfig(), getAudioSampleRate(), getAudioChannel(), getBitRate() / 1024);
 }
 
 }//namespace mediakit
\ No newline at end of file
diff --git a/src/Extension/AAC.h b/src/Extension/AAC.h
index ad7479f6..b95fc6f2 100644
--- a/src/Extension/AAC.h
+++ b/src/Extension/AAC.h
@@ -44,7 +44,7 @@ public:
     /**
      * 获取aac 配置信息
      */
-    const std::string &getAacCfg() const;
+    const std::string &getConfig() const;
 
     bool ready() override;
     CodecId getCodecId() const override;
diff --git a/src/Extension/AACRtmp.cpp b/src/Extension/AACRtmp.cpp
index 9fbd8fd1..f1fdbab9 100644
--- a/src/Extension/AACRtmp.cpp
+++ b/src/Extension/AACRtmp.cpp
@@ -16,7 +16,7 @@ using namespace toolkit;
 
 namespace mediakit {
 
-static string getAacCfg(const RtmpPacket &thiz) {
+static string getConfig(const RtmpPacket &thiz) {
     string ret;
     if ((RtmpAudioCodec)thiz.getRtmpCodecId() != RtmpAudioCodec::aac) {
         return ret;
@@ -30,8 +30,8 @@ static string getAacCfg(const RtmpPacket &thiz) {
 }
 
 void AACRtmpDecoder::inputRtmp(const RtmpPacket::Ptr &pkt) {
-    if (pkt->isCfgFrame()) {
-        _aac_cfg = getAacCfg(*pkt);
+    if (pkt->isConfigFrame()) {
+        _aac_cfg = getConfig(*pkt);
         if (!_aac_cfg.empty()) {
             onGetAAC(nullptr, 0, 0);
         }
@@ -79,7 +79,7 @@ AACRtmpEncoder::AACRtmpEncoder(const Track::Ptr &track) {
 void AACRtmpEncoder::makeConfigPacket() {
     if (_track && _track->ready()) {
         //从track中和获取aac配置信息
-        _aac_cfg = _track->getAacCfg();
+        _aac_cfg = _track->getConfig();
     }
 
     if (!_aac_cfg.empty()) {
diff --git a/src/Extension/AACRtp.cpp b/src/Extension/AACRtp.cpp
index 97c84ff6..b5c5ab39 100644
--- a/src/Extension/AACRtp.cpp
+++ b/src/Extension/AACRtp.cpp
@@ -64,7 +64,7 @@ AACRtpDecoder::AACRtpDecoder(const Track::Ptr &track) {
     if (!aacTrack || !aacTrack->ready()) {
         WarnL << "该aac track无效!";
     } else {
-        _aac_cfg = aacTrack->getAacCfg();
+        _aac_cfg = aacTrack->getConfig();
     }
     obtainFrame();
 }
diff --git a/src/Extension/H264Rtmp.cpp b/src/Extension/H264Rtmp.cpp
index eb6e5c4d..9e62896d 100644
--- a/src/Extension/H264Rtmp.cpp
+++ b/src/Extension/H264Rtmp.cpp
@@ -56,7 +56,7 @@ static bool getH264Config(const RtmpPacket &thiz, string &sps, string &pps) {
 }
 
 void H264RtmpDecoder::inputRtmp(const RtmpPacket::Ptr &pkt) {
-    if (pkt->isCfgFrame()) {
+    if (pkt->isConfigFrame()) {
         //缓存sps pps，后续插入到I帧之前
         if (!getH264Config(*pkt, _sps, _pps)) {
             WarnL << "get h264 sps/pps failed, rtmp packet is: " << hexdump(pkt->data(), pkt->size());
diff --git a/src/Extension/H265Rtmp.cpp b/src/Extension/H265Rtmp.cpp
index 6c2af5fd..af685d36 100644
--- a/src/Extension/H265Rtmp.cpp
+++ b/src/Extension/H265Rtmp.cpp
@@ -124,7 +124,7 @@ void H265RtmpDecoder::inputRtmp(const RtmpPacket::Ptr &pkt) {
     }
 
     // 国内扩展(12) H265 rtmp
-    if (pkt->isCfgFrame()) {
+    if (pkt->isConfigFrame()) {
 #ifdef ENABLE_MP4
         string config;
         if (getH265ConfigFrame(*pkt, config)) {
diff --git a/src/Record/MP4Demuxer.cpp b/src/Record/MP4Demuxer.cpp
index a3f29958..02c66976 100644
--- a/src/Record/MP4Demuxer.cpp
+++ b/src/Record/MP4Demuxer.cpp
@@ -247,7 +247,7 @@ Frame::Ptr MP4Demuxer::makeFrame(uint32_t track_id, const Buffer::Ptr &buf, int6
             AACTrack::Ptr track = dynamic_pointer_cast<AACTrack>(it->second);
             assert(track);
             //加上adts头
-            dumpAacConfig(track->getAacCfg(), buf->size() - DATA_OFFSET, (uint8_t *) buf->data() + (DATA_OFFSET - ADTS_HEADER_LEN), ADTS_HEADER_LEN);
+            dumpAacConfig(track->getConfig(), buf->size() - DATA_OFFSET, (uint8_t *) buf->data() + (DATA_OFFSET - ADTS_HEADER_LEN), ADTS_HEADER_LEN);
             ret = std::make_shared<FrameWrapper<FrameFromPtr> >(buf, (uint64_t)dts, (uint64_t)pts, ADTS_HEADER_LEN, DATA_OFFSET - ADTS_HEADER_LEN, codec);
             break;
         }
diff --git a/src/Record/MP4Muxer.cpp b/src/Record/MP4Muxer.cpp
index 69db4237..c79cc132 100644
--- a/src/Record/MP4Muxer.cpp
+++ b/src/Record/MP4Muxer.cpp
@@ -234,8 +234,8 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
                                                  audio_track->getAudioChannel(),
                                                  audio_track->getAudioSampleBit() * audio_track->getAudioChannel(),
                                                  audio_track->getAudioSampleRate(),
-                                                 audio_track->getAacCfg().data(),
-                                                 audio_track->getAacCfg().size());
+                                                 audio_track->getConfig().data(),
+                                                 audio_track->getConfig().size());
             if (track_id < 0) {
                 WarnL << "添加AAC Track失败:" << track_id;
                 return false;
diff --git a/src/Rtmp/FlvPlayer.cpp b/src/Rtmp/FlvPlayer.cpp
index c0dc1dfa..fbefd23e 100644
--- a/src/Rtmp/FlvPlayer.cpp
+++ b/src/Rtmp/FlvPlayer.cpp
@@ -62,7 +62,7 @@ bool FlvPlayer::onRecvMetadata(const AMFValue &metadata) {
 }
 
 void FlvPlayer::onRecvRtmpPacket(RtmpPacket::Ptr packet) {
-    if (!_play_result && !packet->isCfgFrame()) {
+    if (!_play_result && !packet->isConfigFrame()) {
         _play_result = true;
         onPlayResult(SockException(Err_success, "play http-flv success"));
     }
diff --git a/src/Rtmp/Rtmp.cpp b/src/Rtmp/Rtmp.cpp
index 92c5f905..4fa8bce3 100644
--- a/src/Rtmp/Rtmp.cpp
+++ b/src/Rtmp/Rtmp.cpp
@@ -167,7 +167,7 @@ bool RtmpPacket::isVideoKeyFrame() const {
     return frame_type == RtmpFrameType::key_frame;
 }
 
-bool RtmpPacket::isCfgFrame() const {
+bool RtmpPacket::isConfigFrame() const {
     switch (type_id) {
         case MSG_AUDIO: {
             return (RtmpAudioCodec)getRtmpCodecId() == RtmpAudioCodec::aac && (RtmpAACPacketType)buffer[1] == RtmpAACPacketType::aac_config_header;
diff --git a/src/Rtmp/Rtmp.h b/src/Rtmp/Rtmp.h
index 9d83ffa9..3ebe815f 100644
--- a/src/Rtmp/Rtmp.h
+++ b/src/Rtmp/Rtmp.h
@@ -169,10 +169,15 @@ public:
     }
 
     void clear();
+
     // video config frame和key frame都返回true
+    // 用于gop缓存定位
     bool isVideoKeyFrame() const;
-    // aac config或h264/h265 config
-    bool isCfgFrame() const;
+
+    // aac config或h264/h265 config返回true，支持增强型rtmp
+    // 用于缓存解码配置信息
+    bool isConfigFrame() const;
+
     int getRtmpCodecId() const;
     int getAudioSampleRate() const;
     int getAudioSampleBit() const;
diff --git a/src/Rtmp/RtmpMediaSourceImp.cpp b/src/Rtmp/RtmpMediaSourceImp.cpp
index ee072b8e..4a6f8975 100644
--- a/src/Rtmp/RtmpMediaSourceImp.cpp
+++ b/src/Rtmp/RtmpMediaSourceImp.cpp
@@ -54,7 +54,7 @@ void RtmpMediaSource::onWrite(RtmpPacket::Ptr pkt, bool /*= true*/) {
         default: break;
     }
 
-    if (pkt->isCfgFrame()) {
+    if (pkt->isConfigFrame()) {
         std::lock_guard<std::recursive_mutex> lock(_mtx);
         _config_frame_map[pkt->type_id] = pkt;
         if (!_ring) {
diff --git a/src/Rtmp/RtmpPlayer.cpp b/src/Rtmp/RtmpPlayer.cpp
index 7bc0acdf..42914cda 100644
--- a/src/Rtmp/RtmpPlayer.cpp
+++ b/src/Rtmp/RtmpPlayer.cpp
@@ -339,7 +339,7 @@ void RtmpPlayer::onMediaData_l(RtmpPacket::Ptr chunk_data) {
         return;
     }
 
-    if (chunk_data->isCfgFrame()) {
+    if (chunk_data->isConfigFrame()) {
         //输入配置帧以便初始化完成各个track
         onRtmpPacket(chunk_data);
     } else {