diff --git a/api/include/mk_events_objects.h b/api/include/mk_events_objects.h
index 7641cb3e..f8d3c571 100644
--- a/api/include/mk_events_objects.h
+++ b/api/include/mk_events_objects.h
@@ -18,7 +18,7 @@ extern "C" {
 
 ///////////////////////////////////////////MP4Info/////////////////////////////////////////////
 //MP4Info对象的C映射
-typedef void* mk_mp4_info;
+typedef struct mk_mp4_info_t *mk_mp4_info;
 // GMT 标准时间，单位秒
 API_EXPORT uint64_t API_CALL mk_mp4_info_get_start_time(const mk_mp4_info ctx);
 // 录像长度，单位秒
@@ -42,7 +42,7 @@ API_EXPORT const char* API_CALL mk_mp4_info_get_stream(const mk_mp4_info ctx);
 
 ///////////////////////////////////////////Parser/////////////////////////////////////////////
 //Parser对象的C映射
-typedef void* mk_parser;
+typedef struct mk_parser_t *mk_parser;
 //Parser::Method(),获取命令字，譬如GET/POST
 API_EXPORT const char* API_CALL mk_parser_get_method(const mk_parser ctx);
 //Parser::Url(),获取HTTP的访问url(不包括?后面的参数)
@@ -60,7 +60,7 @@ API_EXPORT const char* API_CALL mk_parser_get_content(const mk_parser ctx, size_
 
 ///////////////////////////////////////////MediaInfo/////////////////////////////////////////////
 //MediaInfo对象的C映射
-typedef void* mk_media_info;
+typedef struct mk_media_info_t *mk_media_info;
 //MediaInfo::_param_strs
 API_EXPORT const char* API_CALL mk_media_info_get_params(const mk_media_info ctx);
 //MediaInfo::_schema
@@ -79,7 +79,7 @@ API_EXPORT uint16_t API_CALL mk_media_info_get_port(const mk_media_info ctx);
 
 ///////////////////////////////////////////MediaSource/////////////////////////////////////////////
 //MediaSource对象的C映射
-typedef void* mk_media_source;
+typedef struct mk_media_source_t *mk_media_source;
 //查找MediaSource的回调函数
 typedef void(API_CALL *on_mk_media_source_find_cb)(void *user_data, const mk_media_source ctx);
 
@@ -138,7 +138,7 @@ API_EXPORT void API_CALL mk_media_source_for_each(void *user_data, on_mk_media_s
 
 ///////////////////////////////////////////HttpBody/////////////////////////////////////////////
 //HttpBody对象的C映射
-typedef void* mk_http_body;
+typedef struct mk_http_body_t *mk_http_body;
 /**
  * 生成HttpStringBody
  * @param str 字符串指针
@@ -173,7 +173,7 @@ API_EXPORT void API_CALL mk_http_body_release(mk_http_body ctx);
 
 ///////////////////////////////////////////HttpResponseInvoker/////////////////////////////////////////////
 //HttpSession::HttpResponseInvoker对象的C映射
-typedef void* mk_http_response_invoker;
+typedef struct mk_http_response_invoker_t *mk_http_response_invoker;
 
 /**
  * HttpSession::HttpResponseInvoker(const string &codeOut, const StrCaseMap &headerOut, const HttpBody::Ptr &body);
@@ -219,7 +219,8 @@ API_EXPORT void API_CALL mk_http_response_invoker_clone_release(const mk_http_re
 
 ///////////////////////////////////////////HttpAccessPathInvoker/////////////////////////////////////////////
 //HttpSession::HttpAccessPathInvoker对象的C映射
-typedef void* mk_http_access_path_invoker;
+typedef struct mk_http_access_path_invoker_t *mk_http_access_path_invoker;
+
 /**
  * HttpSession::HttpAccessPathInvoker(const string &errMsg,const string &accessPath, int cookieLifeSecond);
  * @param err_msg 如果为空，则代表鉴权通过，否则为错误提示,可以为null
@@ -244,7 +245,7 @@ API_EXPORT void API_CALL mk_http_access_path_invoker_clone_release(const mk_http
 
 ///////////////////////////////////////////RtspSession::onGetRealm/////////////////////////////////////////////
 //RtspSession::onGetRealm对象的C映射
-typedef void* mk_rtsp_get_realm_invoker;
+typedef struct mk_rtsp_get_realm_invoker_t *mk_rtsp_get_realm_invoker;
 /**
  * 执行RtspSession::onGetRealm
  * @param realm 该rtsp流是否需要开启rtsp专属鉴权，至null或空字符串则不鉴权
@@ -265,7 +266,7 @@ API_EXPORT void API_CALL mk_rtsp_get_realm_invoker_clone_release(const mk_rtsp_g
 
 ///////////////////////////////////////////RtspSession::onAuth/////////////////////////////////////////////
 //RtspSession::onAuth对象的C映射
-typedef void* mk_rtsp_auth_invoker;
+typedef struct mk_rtsp_auth_invoker_t *mk_rtsp_auth_invoker;
 
 /**
  * 执行RtspSession::onAuth
@@ -289,7 +290,7 @@ API_EXPORT void API_CALL mk_rtsp_auth_invoker_clone_release(const mk_rtsp_auth_i
 
 ///////////////////////////////////////////Broadcast::PublishAuthInvoker/////////////////////////////////////////////
 //Broadcast::PublishAuthInvoker对象的C映射
-typedef void* mk_publish_auth_invoker;
+typedef struct mk_publish_auth_invoker_t *mk_publish_auth_invoker;
 
 /**
  * 执行Broadcast::PublishAuthInvoker
@@ -315,7 +316,7 @@ API_EXPORT void API_CALL mk_publish_auth_invoker_clone_release(const mk_publish_
 
 ///////////////////////////////////////////Broadcast::AuthInvoker/////////////////////////////////////////////
 //Broadcast::AuthInvoker对象的C映射
-typedef void* mk_auth_invoker;
+typedef struct mk_auth_invoker_t *mk_auth_invoker;
 
 /**
  * 执行Broadcast::AuthInvoker
diff --git a/api/include/mk_frame.h b/api/include/mk_frame.h
index a5120ebb..40ba4a4d 100644
--- a/api/include/mk_frame.h
+++ b/api/include/mk_frame.h
@@ -39,7 +39,7 @@ API_EXPORT extern const int MKCodecVP9;
 API_EXPORT extern const int MKCodecAV1;
 API_EXPORT extern const int MKCodecJPEG;
 
-typedef void *mk_frame;
+typedef struct mk_frame_t *mk_frame;
 
 // 用户自定义free回调函数
 typedef void(API_CALL *on_mk_frame_data_release)(void *user_data, char *ptr);
diff --git a/api/include/mk_h264_splitter.h b/api/include/mk_h264_splitter.h
index 62232414..24db3599 100644
--- a/api/include/mk_h264_splitter.h
+++ b/api/include/mk_h264_splitter.h
@@ -17,7 +17,7 @@
 extern "C" {
 #endif
 
-typedef void *mk_h264_splitter;
+typedef struct mk_h264_splitter_t *mk_h264_splitter;
 
 /**
  * h264 分帧器输出回调函数
diff --git a/api/include/mk_httpclient.h b/api/include/mk_httpclient.h
index 2405e5dd..c76d4ce0 100755
--- a/api/include/mk_httpclient.h
+++ b/api/include/mk_httpclient.h
@@ -20,7 +20,7 @@ extern "C" {
 
 ///////////////////////////////////////////HttpDownloader/////////////////////////////////////////////
 
-typedef void *mk_http_downloader;
+typedef struct mk_http_downloader_t *mk_http_downloader;
 
 /**
  * @param user_data 用户数据指针
@@ -54,7 +54,7 @@ API_EXPORT void API_CALL mk_http_downloader_start(mk_http_downloader ctx, const
 API_EXPORT void API_CALL mk_http_downloader_start2(mk_http_downloader ctx, const char *url, const char *file, on_mk_download_complete cb, void *user_data, on_user_data_free user_data_free);
 
 ///////////////////////////////////////////HttpRequester/////////////////////////////////////////////
-typedef void *mk_http_requester;
+typedef struct mk_http_requester_t *mk_http_requester;
 
 /**
  * http请求结果回调
diff --git a/api/include/mk_media.h b/api/include/mk_media.h
index 5280c904..dfefda1b 100755
--- a/api/include/mk_media.h
+++ b/api/include/mk_media.h
@@ -22,7 +22,7 @@
 extern "C" {
 #endif
 
-typedef void *mk_media;
+typedef struct mk_media_t *mk_media;
 
 /**
  * 创建一个媒体源
diff --git a/api/include/mk_player.h b/api/include/mk_player.h
index b57809f7..5ab0eea5 100755
--- a/api/include/mk_player.h
+++ b/api/include/mk_player.h
@@ -19,7 +19,7 @@
 extern "C" {
 #endif
 
-typedef void* mk_player;
+typedef struct mk_player_t *mk_player;
 
 /**
  * 播放结果或播放中断事件的回调
diff --git a/api/include/mk_proxyplayer.h b/api/include/mk_proxyplayer.h
index f25bf9b7..bb7afac0 100644
--- a/api/include/mk_proxyplayer.h
+++ b/api/include/mk_proxyplayer.h
@@ -17,7 +17,7 @@
 extern "C" {
 #endif
 
-typedef void *mk_proxy_player;
+typedef struct mk_proxy_player_t *mk_proxy_player;
 
 /**
  * 创建一个代理播放器
diff --git a/api/include/mk_pusher.h b/api/include/mk_pusher.h
index fc7b067c..adb905e5 100644
--- a/api/include/mk_pusher.h
+++ b/api/include/mk_pusher.h
@@ -18,7 +18,7 @@
 extern "C" {
 #endif
 
-typedef void* mk_pusher;
+typedef struct mk_pusher_t *mk_pusher;
 
 /**
  * 推流结果或推流中断事件的回调
diff --git a/api/include/mk_recorder.h b/api/include/mk_recorder.h
index 2653fd50..c9053db5 100644
--- a/api/include/mk_recorder.h
+++ b/api/include/mk_recorder.h
@@ -19,7 +19,7 @@ extern "C" {
 
 ///////////////////////////////////////////flv录制/////////////////////////////////////////////
 
-typedef void* mk_flv_recorder;
+typedef struct mk_flv_recorder_t *mk_flv_recorder;
 
 /**
  * 创建flv录制器
diff --git a/api/include/mk_rtp_server.h b/api/include/mk_rtp_server.h
index f50f438a..add2104d 100644
--- a/api/include/mk_rtp_server.h
+++ b/api/include/mk_rtp_server.h
@@ -14,7 +14,7 @@
 extern "C" {
 #endif
 
-typedef void* mk_rtp_server;
+typedef struct mk_rtp_server_t *mk_rtp_server;
 
 /**
  * 创建GB28181 RTP 服务器
diff --git a/api/include/mk_tcp.h b/api/include/mk_tcp.h
index 8ba87d1f..84deed8e 100644
--- a/api/include/mk_tcp.h
+++ b/api/include/mk_tcp.h
@@ -19,7 +19,7 @@ extern "C" {
 
 ///////////////////////////////////////////Buffer::Ptr/////////////////////////////////////////////
 
-typedef void *mk_buffer;
+typedef struct mk_buffer_t *mk_buffer;
 typedef void(API_CALL *on_mk_buffer_free)(void *user_data, void *data);
 
 /**
@@ -39,7 +39,7 @@ API_EXPORT size_t API_CALL mk_buffer_get_size(mk_buffer buffer);
 
 ///////////////////////////////////////////SockInfo/////////////////////////////////////////////
 //SockInfo对象的C映射
-typedef void* mk_sock_info;
+typedef struct mk_sock_info_t *mk_sock_info;
 
 //SockInfo::get_peer_ip()
 API_EXPORT const char* API_CALL mk_sock_info_peer_ip(const mk_sock_info ctx, char *buf);
@@ -66,8 +66,8 @@ API_EXPORT uint16_t API_CALL mk_sock_info_local_port(const mk_sock_info ctx);
 #endif
 ///////////////////////////////////////////TcpSession/////////////////////////////////////////////
 //TcpSession对象的C映射
-typedef void* mk_tcp_session;
-typedef void* mk_tcp_session_ref;
+typedef struct mk_tcp_session_t *mk_tcp_session;
+typedef struct mk_tcp_session_ref_t *mk_tcp_session_ref;
 
 //获取基类指针以便获取其网络相关信息
 API_EXPORT mk_sock_info API_CALL mk_tcp_session_get_sock_info(const mk_tcp_session ctx);
@@ -168,7 +168,7 @@ API_EXPORT void API_CALL mk_tcp_server_events_listen(const mk_tcp_session_events
 
 ///////////////////////////////////////////自定义tcp客户端/////////////////////////////////////////////
 
-typedef void* mk_tcp_client;
+typedef struct mk_tcp_client_t *mk_tcp_client;
 //获取基类指针以便获取其网络相关信息
 API_EXPORT mk_sock_info API_CALL mk_tcp_client_get_sock_info(const mk_tcp_client ctx);
 
diff --git a/api/include/mk_thread.h b/api/include/mk_thread.h
index 959626a3..79994154 100644
--- a/api/include/mk_thread.h
+++ b/api/include/mk_thread.h
@@ -20,7 +20,7 @@ extern "C" {
 #endif
 
 ///////////////////////////////////////////事件线程/////////////////////////////////////////////
-typedef void* mk_thread;
+typedef struct mk_thread_t *mk_thread;
 
 /**
  * 获取tcp会话对象所在事件线程
@@ -52,7 +52,7 @@ API_EXPORT mk_thread API_CALL mk_thread_from_pool();
  */
 API_EXPORT mk_thread API_CALL mk_thread_from_pool_work();
 
-typedef void* mk_thread_pool;
+typedef struct mk_thread_pool_t *mk_thread_pool;
 
 /**
  * 创建线程池
@@ -108,7 +108,7 @@ API_EXPORT void API_CALL mk_async_do_delay2(mk_thread ctx, size_t ms, on_mk_asyn
 API_EXPORT void API_CALL mk_sync_do(mk_thread ctx, on_mk_async cb, void *user_data);
 
 ///////////////////////////////////////////定时器/////////////////////////////////////////////
-typedef void* mk_timer;
+typedef struct mk_timer_t *mk_timer;
 
 /**
  * 定时器触发事件
@@ -135,7 +135,7 @@ API_EXPORT void API_CALL mk_timer_release(mk_timer ctx);
 
 ///////////////////////////////////////////信号量/////////////////////////////////////////////
 
-typedef void* mk_sem;
+typedef struct mk_sem_t *mk_sem;
 
 /**
  * 创建信号量
diff --git a/api/include/mk_track.h b/api/include/mk_track.h
index ff8ddf1c..b7a01b7f 100644
--- a/api/include/mk_track.h
+++ b/api/include/mk_track.h
@@ -19,7 +19,7 @@ extern "C" {
 #endif
 
 //音视频轨道
-typedef void* mk_track;
+typedef struct mk_track_t *mk_track;
 //输出frame回调
 typedef void(API_CALL *on_mk_frame_out)(void *user_data, mk_frame frame);
 
diff --git a/api/include/mk_transcode.h b/api/include/mk_transcode.h
index be97fd15..1c4bd0ce 100644
--- a/api/include/mk_transcode.h
+++ b/api/include/mk_transcode.h
@@ -20,11 +20,11 @@ extern "C" {
 #endif
 
 //解码器对象
-typedef void *mk_decoder;
+typedef struct mk_decoder_t *mk_decoder;
 //解码后的frame
-typedef void *mk_frame_pix;
+typedef struct mk_frame_pix_t *mk_frame_pix;
 //SwsContext的包装
-typedef void *mk_swscale;
+typedef struct mk_swscale_t *mk_swscale;
 //FFmpeg原始解码帧对象
 typedef struct AVFrame AVFrame;
 //FFmpeg编解码器对象
diff --git a/api/include/mk_util.h b/api/include/mk_util.h
index 52a8d776..bd5b29ce 100644
--- a/api/include/mk_util.h
+++ b/api/include/mk_util.h
@@ -58,7 +58,7 @@ API_EXPORT char* API_CALL mk_util_get_current_time_string(const char *fmt);
 API_EXPORT char* API_CALL mk_util_hex_dump(const void *buf, int len);
 
 ///////////////////////////////////////////mk ini/////////////////////////////////////////////
-typedef void* mk_ini;
+typedef struct mk_ini_t *mk_ini;
 
 /**
  * 创建ini配置对象
diff --git a/api/source/mk_events_objects.cpp b/api/source/mk_events_objects.cpp
index 7cd379cb..4b641a2b 100644
--- a/api/source/mk_events_objects.cpp
+++ b/api/source/mk_events_objects.cpp
@@ -245,14 +245,14 @@ API_EXPORT void API_CALL mk_media_source_find(const char *schema,
                                               on_mk_media_source_find_cb cb) {
     assert(schema && vhost && app && stream && cb);
     auto src = MediaSource::find(schema, vhost, app, stream, from_mp4);
-    cb(user_data, src.get());
+    cb(user_data, (mk_media_source)src.get());
 }
 
 API_EXPORT void API_CALL mk_media_source_for_each(void *user_data, on_mk_media_source_find_cb cb, const char *schema,
                                                   const char *vhost, const char *app, const char *stream) {
     assert(cb);
     MediaSource::for_each_media([&](const MediaSource::Ptr &src) {
-        cb(user_data, src.get());
+        cb(user_data, (mk_media_source)src.get());
     }, schema ? schema : "", vhost ? vhost : "", app ? app : "", stream ? stream : "");
 }
 
@@ -263,17 +263,17 @@ API_EXPORT mk_http_body API_CALL mk_http_body_from_string(const char *str, size_
     if(!len){
         len = strlen(str);
     }
-    return new HttpBody::Ptr(new HttpStringBody(std::string(str, len)));
+    return (mk_http_body)new HttpBody::Ptr(new HttpStringBody(std::string(str, len)));
 }
 
 API_EXPORT mk_http_body API_CALL mk_http_body_from_buffer(mk_buffer buffer) {
     assert(buffer);
-    return new HttpBody::Ptr(new HttpBufferBody(*((Buffer::Ptr *) buffer)));
+    return (mk_http_body)new HttpBody::Ptr(new HttpBufferBody(*((Buffer::Ptr *) buffer)));
 }
 
 API_EXPORT mk_http_body API_CALL mk_http_body_from_file(const char *file_path){
     assert(file_path);
-    return new HttpBody::Ptr(new HttpFileBody(file_path));
+    return (mk_http_body)new HttpBody::Ptr(new HttpFileBody(file_path));
 }
 
 template <typename C = StrCaseMap>
@@ -294,7 +294,7 @@ static C get_http_header( const char *response_header[]){
 
 API_EXPORT mk_http_body API_CALL mk_http_body_from_multi_form(const char *key_val[],const char *file_path){
     assert(key_val && file_path);
-    return new HttpBody::Ptr(new HttpMultiFormBody(get_http_header<HttpArgs>(key_val),file_path));
+    return (mk_http_body)new HttpBody::Ptr(new HttpMultiFormBody(get_http_header<HttpArgs>(key_val),file_path));
 }
 
 API_EXPORT void API_CALL mk_http_body_release(mk_http_body ctx){
@@ -338,7 +338,7 @@ API_EXPORT void API_CALL mk_http_response_invoker_do(const mk_http_response_invo
 API_EXPORT mk_http_response_invoker API_CALL mk_http_response_invoker_clone(const mk_http_response_invoker ctx){
     assert(ctx);
     HttpSession::HttpResponseInvoker *invoker = (HttpSession::HttpResponseInvoker *)ctx;
-    return new  HttpSession::HttpResponseInvoker (*invoker);
+    return (mk_http_response_invoker)new HttpSession::HttpResponseInvoker (*invoker);
 }
 
 API_EXPORT void API_CALL mk_http_response_invoker_clone_release(const mk_http_response_invoker ctx){
@@ -362,7 +362,7 @@ API_EXPORT void API_CALL mk_http_access_path_invoker_do(const mk_http_access_pat
 API_EXPORT mk_http_access_path_invoker API_CALL mk_http_access_path_invoker_clone(const mk_http_access_path_invoker ctx){
     assert(ctx);
     HttpSession::HttpAccessPathInvoker *invoker = (HttpSession::HttpAccessPathInvoker *)ctx;
-    return new HttpSession::HttpAccessPathInvoker(*invoker);
+    return (mk_http_access_path_invoker)new HttpSession::HttpAccessPathInvoker(*invoker);
 }
 
 API_EXPORT void API_CALL mk_http_access_path_invoker_clone_release(const mk_http_access_path_invoker ctx){
@@ -382,7 +382,7 @@ API_EXPORT void API_CALL mk_rtsp_get_realm_invoker_do(const mk_rtsp_get_realm_in
 API_EXPORT mk_rtsp_get_realm_invoker API_CALL mk_rtsp_get_realm_invoker_clone(const mk_rtsp_get_realm_invoker ctx){
     assert(ctx);
     RtspSession::onGetRealm *invoker = (RtspSession::onGetRealm *)ctx;
-    return new RtspSession::onGetRealm (*invoker);
+    return (mk_rtsp_get_realm_invoker)new RtspSession::onGetRealm (*invoker);
 }
 
 API_EXPORT void API_CALL mk_rtsp_get_realm_invoker_clone_release(const mk_rtsp_get_realm_invoker ctx){
@@ -403,7 +403,7 @@ API_EXPORT void API_CALL mk_rtsp_auth_invoker_do(const mk_rtsp_auth_invoker ctx,
 API_EXPORT mk_rtsp_auth_invoker API_CALL mk_rtsp_auth_invoker_clone(const mk_rtsp_auth_invoker ctx){
     assert(ctx);
     RtspSession::onAuth *invoker = (RtspSession::onAuth *)ctx;
-    return new RtspSession::onAuth(*invoker);
+    return (mk_rtsp_auth_invoker)new RtspSession::onAuth(*invoker);
 }
 
 API_EXPORT void API_CALL mk_rtsp_auth_invoker_clone_release(const mk_rtsp_auth_invoker ctx){
@@ -428,7 +428,7 @@ API_EXPORT void API_CALL mk_publish_auth_invoker_do(const mk_publish_auth_invoke
 API_EXPORT mk_publish_auth_invoker API_CALL mk_publish_auth_invoker_clone(const mk_publish_auth_invoker ctx){
     assert(ctx);
     Broadcast::PublishAuthInvoker *invoker = (Broadcast::PublishAuthInvoker *)ctx;
-    return new Broadcast::PublishAuthInvoker(*invoker);
+    return (mk_publish_auth_invoker)new Broadcast::PublishAuthInvoker(*invoker);
 }
 
 API_EXPORT void API_CALL mk_publish_auth_invoker_clone_release(const mk_publish_auth_invoker ctx){
@@ -447,7 +447,7 @@ API_EXPORT void API_CALL mk_auth_invoker_do(const mk_auth_invoker ctx, const cha
 API_EXPORT mk_auth_invoker API_CALL mk_auth_invoker_clone(const mk_auth_invoker ctx){
     assert(ctx);
     Broadcast::AuthInvoker *invoker = (Broadcast::AuthInvoker *)ctx;
-    return new Broadcast::AuthInvoker(*invoker);
+    return (mk_auth_invoker)new Broadcast::AuthInvoker(*invoker);
 }
 
 API_EXPORT void API_CALL mk_auth_invoker_clone_release(const mk_auth_invoker ctx){
diff --git a/api/source/mk_frame.cpp b/api/source/mk_frame.cpp
index 4b026577..8c2e4ff6 100644
--- a/api/source/mk_frame.cpp
+++ b/api/source/mk_frame.cpp
@@ -74,13 +74,13 @@ static mk_frame mk_frame_create_complex(int codec_id, uint64_t dts, uint64_t pts
                                        char *data, size_t size, on_mk_frame_data_release cb, std::shared_ptr<void> user_data) {
     switch (codec_id) {
         case CodecH264:
-            return new Frame::Ptr(new H264FrameHelper<FrameFromPtrForC>(
+            return (mk_frame)new Frame::Ptr(new H264FrameHelper<FrameFromPtrForC>(
                 cb, frame_flags, cb, std::move(user_data), (CodecId)codec_id, data, size, dts, pts, prefix_size));
         case CodecH265:
-            return new Frame::Ptr(new H265FrameHelper<FrameFromPtrForC>(
+            return (mk_frame)new Frame::Ptr(new H265FrameHelper<FrameFromPtrForC>(
                 cb, frame_flags, cb, std::move(user_data), (CodecId)codec_id, data, size, dts, pts, prefix_size));
         default:
-            return new Frame::Ptr(new FrameFromPtrForC(
+            return (mk_frame)new Frame::Ptr(new FrameFromPtrForC(
                 cb, frame_flags, cb, std::move(user_data), (CodecId)codec_id, data, size, dts, pts, prefix_size));
     }
 }
@@ -117,7 +117,7 @@ API_EXPORT void API_CALL mk_frame_unref(mk_frame frame) {
 
 API_EXPORT mk_frame API_CALL mk_frame_ref(mk_frame frame) {
     assert(frame);
-    return new Frame::Ptr(Frame::getCacheAbleFrame(*((Frame::Ptr *) frame)));
+    return (mk_frame)new Frame::Ptr(Frame::getCacheAbleFrame(*((Frame::Ptr *) frame)));
 }
 
 API_EXPORT int API_CALL mk_frame_codec_id(mk_frame frame) {
diff --git a/api/source/mk_httpclient.cpp b/api/source/mk_httpclient.cpp
index 4f9b7963..9c52cd33 100755
--- a/api/source/mk_httpclient.cpp
+++ b/api/source/mk_httpclient.cpp
@@ -48,7 +48,7 @@ API_EXPORT void API_CALL mk_http_downloader_start2(mk_http_downloader ctx, const
 ///////////////////////////////////////////HttpRequester/////////////////////////////////////////////
 API_EXPORT mk_http_requester API_CALL mk_http_requester_create(){
     HttpRequester::Ptr *ret = new HttpRequester::Ptr(new HttpRequester);
-    return ret;
+    return (mk_http_requester)ret;
 }
 
 API_EXPORT void API_CALL mk_http_requester_clear(mk_http_requester ctx){
diff --git a/api/source/mk_media.cpp b/api/source/mk_media.cpp
index d6e125d8..117d7082 100755
--- a/api/source/mk_media.cpp
+++ b/api/source/mk_media.cpp
@@ -98,7 +98,7 @@ protected:
 
     void onRegist(MediaSource &sender, bool regist) override{
         if (_on_regist) {
-            _on_regist(_on_regist_data.get(), &sender, regist);
+            _on_regist(_on_regist_data.get(), (mk_media_source)&sender, regist);
         }
     }
 
@@ -319,5 +319,5 @@ API_EXPORT void API_CALL mk_media_stop_send_rtp(mk_media ctx, const char *ssrc){
 
 API_EXPORT mk_thread API_CALL mk_media_get_owner_thread(mk_media ctx) {
     MediaHelper::Ptr *obj = (MediaHelper::Ptr *)ctx;
-    return (*obj)->getChannel()->getOwnerPoller(MediaSource::NullMediaSource()).get();
+    return (mk_thread)(*obj)->getChannel()->getOwnerPoller(MediaSource::NullMediaSource()).get();
 }
\ No newline at end of file
diff --git a/api/source/mk_player.cpp b/api/source/mk_player.cpp
index 104b272d..078f7140 100755
--- a/api/source/mk_player.cpp
+++ b/api/source/mk_player.cpp
@@ -105,7 +105,7 @@ private:
 API_EXPORT mk_player API_CALL mk_player_create() {
     MediaPlayerForC::Ptr *obj = new MediaPlayerForC::Ptr(new MediaPlayerForC());
     (*obj)->setup();
-    return obj;
+    return (mk_player)obj;
 }
 API_EXPORT void API_CALL mk_player_release(mk_player ctx) {
     assert(ctx);
diff --git a/api/source/mk_pusher.cpp b/api/source/mk_pusher.cpp
index b44a8d89..48956f7d 100644
--- a/api/source/mk_pusher.cpp
+++ b/api/source/mk_pusher.cpp
@@ -18,14 +18,14 @@ using namespace mediakit;
 API_EXPORT mk_pusher API_CALL mk_pusher_create(const char *schema,const char *vhost,const char *app, const char *stream){
     assert(schema && vhost && app && schema);
     MediaPusher::Ptr *obj = new MediaPusher::Ptr(new MediaPusher(schema,vhost,app,stream));
-    return obj;
+    return (mk_pusher)obj;
 }
 
 API_EXPORT mk_pusher API_CALL mk_pusher_create_src(mk_media_source ctx){
     assert(ctx);
     MediaSource *src = (MediaSource *)ctx;
     MediaPusher::Ptr *obj = new MediaPusher::Ptr(new MediaPusher(src->shared_from_this()));
-    return obj;
+    return (mk_pusher)obj;
 }
 
 API_EXPORT void API_CALL mk_pusher_release(mk_pusher ctx){
diff --git a/api/source/mk_recorder.cpp b/api/source/mk_recorder.cpp
index 8bacbb0b..e16a64c4 100644
--- a/api/source/mk_recorder.cpp
+++ b/api/source/mk_recorder.cpp
@@ -18,7 +18,7 @@ using namespace mediakit;
 
 API_EXPORT mk_flv_recorder API_CALL mk_flv_recorder_create(){
     FlvRecorder::Ptr *ret = new FlvRecorder::Ptr(new FlvRecorder);
-    return ret;
+    return (mk_flv_recorder)ret;
 }
 API_EXPORT void API_CALL mk_flv_recorder_release(mk_flv_recorder ctx){
     assert(ctx);
diff --git a/api/source/mk_rtp_server.cpp b/api/source/mk_rtp_server.cpp
index 79517263..3f5f2a09 100644
--- a/api/source/mk_rtp_server.cpp
+++ b/api/source/mk_rtp_server.cpp
@@ -19,7 +19,7 @@ using namespace mediakit;
 API_EXPORT mk_rtp_server API_CALL mk_rtp_server_create(uint16_t port, int tcp_mode, const char *stream_id) {
     RtpServer::Ptr *server = new RtpServer::Ptr(new RtpServer);
     (*server)->start(port, stream_id, (RtpServer::TcpMode)tcp_mode);
-    return server;
+    return (mk_rtp_server)server;
 }
 
 API_EXPORT void API_CALL mk_rtp_server_connect(mk_rtp_server ctx, const char *dst_url, uint16_t dst_port, on_mk_rtp_server_connected cb, void *user_data) {
diff --git a/api/source/mk_tcp.cpp b/api/source/mk_tcp.cpp
index 62f58376..86ea8389 100644
--- a/api/source/mk_tcp.cpp
+++ b/api/source/mk_tcp.cpp
@@ -65,12 +65,12 @@ API_EXPORT mk_buffer API_CALL mk_buffer_from_char(const char *data, size_t len,
 API_EXPORT mk_buffer API_CALL mk_buffer_from_char2(const char *data, size_t len, on_mk_buffer_free cb, void *user_data, on_user_data_free user_data_free) {
     assert(data);
     std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
-    return new Buffer::Ptr(std::make_shared<BufferForC>(data, len, cb, std::move(ptr)));
+    return (mk_buffer)new Buffer::Ptr(std::make_shared<BufferForC>(data, len, cb, std::move(ptr)));
 }
 
 API_EXPORT mk_buffer API_CALL mk_buffer_ref(mk_buffer buffer) {
     assert(buffer);
-    return new Buffer::Ptr(*((Buffer::Ptr *) buffer));
+    return (mk_buffer)new Buffer::Ptr(*((Buffer::Ptr *) buffer));
 }
 
 API_EXPORT void API_CALL mk_buffer_unref(mk_buffer buffer) {
@@ -115,7 +115,7 @@ API_EXPORT uint16_t API_CALL mk_sock_info_local_port(const mk_sock_info ctx){
 API_EXPORT mk_sock_info API_CALL mk_tcp_session_get_sock_info(const mk_tcp_session ctx){
     assert(ctx);
     SessionForC *session = (SessionForC *)ctx;
-    return (SockInfo *)session;
+    return (mk_sock_info)session;
 }
 
 API_EXPORT void API_CALL mk_tcp_session_shutdown(const mk_tcp_session ctx,int err,const char *err_msg){
@@ -155,7 +155,7 @@ API_EXPORT void API_CALL mk_tcp_session_send_buffer_safe(const mk_tcp_session ct
 
 API_EXPORT mk_tcp_session_ref API_CALL mk_tcp_session_ref_from(const mk_tcp_session ctx) {
     auto ref = ((SessionForC *) ctx)->shared_from_this();
-    return new std::shared_ptr<SessionForC>(std::dynamic_pointer_cast<SessionForC>(ref));
+    return (mk_tcp_session_ref)new std::shared_ptr<SessionForC>(std::dynamic_pointer_cast<SessionForC>(ref));
 }
 
 API_EXPORT void mk_tcp_session_ref_release(const mk_tcp_session_ref ref) {
@@ -163,7 +163,7 @@ API_EXPORT void mk_tcp_session_ref_release(const mk_tcp_session_ref ref) {
 }
 
 API_EXPORT mk_tcp_session mk_tcp_session_from_ref(const mk_tcp_session_ref ref) {
-    return ((std::shared_ptr<SessionForC> *) ref)->get();
+    return (mk_tcp_session)((std::shared_ptr<SessionForC> *) ref)->get();
 }
 
 API_EXPORT void API_CALL mk_tcp_session_send_safe(const mk_tcp_session ctx, const char *data, size_t len) {
@@ -179,25 +179,25 @@ static mk_tcp_session_events s_events_server = {0};
 SessionForC::SessionForC(const Socket::Ptr &pSock) : Session(pSock) {
     _local_port = get_local_port();
     if (s_events_server.on_mk_tcp_session_create) {
-        s_events_server.on_mk_tcp_session_create(_local_port,this);
+        s_events_server.on_mk_tcp_session_create(_local_port, (mk_tcp_session) this);
     }
 }
 
 void SessionForC::onRecv(const Buffer::Ptr &buffer) {
     if (s_events_server.on_mk_tcp_session_data) {
-        s_events_server.on_mk_tcp_session_data(_local_port, this, (mk_buffer)&buffer);
+        s_events_server.on_mk_tcp_session_data(_local_port, (mk_tcp_session)this, (mk_buffer)&buffer);
     }
 }
 
 void SessionForC::onError(const SockException &err) {
     if (s_events_server.on_mk_tcp_session_disconnect) {
-        s_events_server.on_mk_tcp_session_disconnect(_local_port,this, err.getErrCode(), err.what());
+        s_events_server.on_mk_tcp_session_disconnect(_local_port, (mk_tcp_session)this, err.getErrCode(), err.what());
     }
 }
 
 void SessionForC::onManager() {
     if (s_events_server.on_mk_tcp_session_manager) {
-        s_events_server.on_mk_tcp_session_manager(_local_port,this);
+        s_events_server.on_mk_tcp_session_manager(_local_port, (mk_tcp_session)this);
     }
 }
 
@@ -320,13 +320,13 @@ TcpClientForC::Ptr *mk_tcp_client_create_l(mk_tcp_client_events *events, mk_tcp_
 API_EXPORT mk_sock_info API_CALL mk_tcp_client_get_sock_info(const mk_tcp_client ctx){
     assert(ctx);
     TcpClientForC::Ptr *client = (TcpClientForC::Ptr *)ctx;
-    return (SockInfo *)client->get();
+    return (mk_sock_info)(SockInfo *)client->get();
 }
 
 API_EXPORT mk_tcp_client API_CALL mk_tcp_client_create(mk_tcp_client_events *events, mk_tcp_type type){
     auto ret = mk_tcp_client_create_l(events,type);
-    (*ret)->setClient(ret);
-    return ret;
+    (*ret)->setClient((mk_tcp_client)ret);
+    return (mk_tcp_client)ret;
 }
 
 API_EXPORT void API_CALL mk_tcp_client_release(mk_tcp_client ctx){
diff --git a/api/source/mk_thread.cpp b/api/source/mk_thread.cpp
index d783ff5e..56b5be2a 100644
--- a/api/source/mk_thread.cpp
+++ b/api/source/mk_thread.cpp
@@ -19,21 +19,21 @@ using namespace toolkit;
 API_EXPORT mk_thread API_CALL mk_thread_from_tcp_session(mk_tcp_session ctx){
     assert(ctx);
     SessionForC *obj = (SessionForC *)ctx;
-    return obj->getPoller().get();
+    return (mk_thread)(obj->getPoller().get());
 }
 
 API_EXPORT mk_thread API_CALL mk_thread_from_tcp_client(mk_tcp_client ctx){
     assert(ctx);
     TcpClientForC::Ptr *client = (TcpClientForC::Ptr *)ctx;
-    return (*client)->getPoller().get();
+    return (mk_thread)((*client)->getPoller().get());
 }
 
 API_EXPORT mk_thread API_CALL mk_thread_from_pool(){
-    return EventPollerPool::Instance().getPoller().get();
+    return (mk_thread)(EventPollerPool::Instance().getPoller().get());
 }
 
 API_EXPORT mk_thread API_CALL mk_thread_from_pool_work(){
-    return WorkThreadPool::Instance().getPoller().get();
+    return (mk_thread)(WorkThreadPool::Instance().getPoller().get());
 }
 
 API_EXPORT void API_CALL mk_async_do(mk_thread ctx,on_mk_async cb, void *user_data){
@@ -123,7 +123,7 @@ API_EXPORT mk_timer API_CALL mk_timer_create2(mk_thread ctx, uint64_t delay_ms,
     std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
     TimerForC::Ptr *ret = new TimerForC::Ptr(new TimerForC(cb, ptr));
     (*ret)->start(delay_ms,*poller);
-    return ret;
+    return (mk_timer)ret;
 }
 
 API_EXPORT void API_CALL mk_timer_release(mk_timer ctx){
@@ -148,7 +148,7 @@ public:
 };
 
 API_EXPORT mk_thread_pool API_CALL mk_thread_pool_create(const char *name, size_t n_thread, int priority) {
-    return new WorkThreadPoolForC(name, n_thread, priority);
+    return (mk_thread_pool)new WorkThreadPoolForC(name, n_thread, priority);
 }
 
 API_EXPORT int API_CALL mk_thread_pool_release(mk_thread_pool pool) {
@@ -159,11 +159,11 @@ API_EXPORT int API_CALL mk_thread_pool_release(mk_thread_pool pool) {
 
 API_EXPORT mk_thread API_CALL mk_thread_from_thread_pool(mk_thread_pool pool) {
     assert(pool);
-    return ((WorkThreadPoolForC *) pool)->getPoller().get();
+    return (mk_thread)(((WorkThreadPoolForC *) pool)->getPoller().get());
 }
 
 API_EXPORT mk_sem API_CALL mk_sem_create() {
-    return new toolkit::semaphore;
+    return (mk_sem)new toolkit::semaphore;
 }
 
 API_EXPORT void API_CALL mk_sem_release(mk_sem sem) {
diff --git a/api/source/mk_track.cpp b/api/source/mk_track.cpp
index 578a5258..d20b01d0 100644
--- a/api/source/mk_track.cpp
+++ b/api/source/mk_track.cpp
@@ -82,8 +82,8 @@ public:
 
 API_EXPORT mk_track API_CALL mk_track_create(int codec_id, codec_args *args) {
     switch (getTrackType((CodecId) codec_id)) {
-        case TrackVideo: return new Track::Ptr(std::make_shared<VideoTrackForC>(codec_id, args));
-        case TrackAudio: return new Track::Ptr(std::make_shared<AudioTrackForC>(codec_id, args));
+        case TrackVideo: return (mk_track)new Track::Ptr(std::make_shared<VideoTrackForC>(codec_id, args));
+        case TrackAudio: return (mk_track)new Track::Ptr(std::make_shared<AudioTrackForC>(codec_id, args));
         default: WarnL << "unrecognized codec:" << codec_id; return nullptr;
     }
 }
@@ -95,7 +95,7 @@ API_EXPORT void API_CALL mk_track_unref(mk_track track) {
 
 API_EXPORT mk_track API_CALL mk_track_ref(mk_track track) {
     assert(track);
-    return new Track::Ptr(*( (Track::Ptr *)track));
+    return (mk_track)new Track::Ptr(*( (Track::Ptr *)track));
 }
 
 API_EXPORT int API_CALL mk_track_codec_id(mk_track track) {
diff --git a/api/source/mk_transcode.cpp b/api/source/mk_transcode.cpp
index 294db8eb..6d118325 100644
--- a/api/source/mk_transcode.cpp
+++ b/api/source/mk_transcode.cpp
@@ -29,12 +29,12 @@ std::vector<std::string> toCodecList(const char *codec_name_list[]) {
 
 API_EXPORT mk_decoder API_CALL mk_decoder_create(mk_track track, int thread_num) {
     assert(track);
-    return new FFmpegDecoder(*((Track::Ptr *) track), thread_num);
+    return (mk_decoder)new FFmpegDecoder(*((Track::Ptr *) track), thread_num);
 }
 
 API_EXPORT mk_decoder API_CALL mk_decoder_create2(mk_track track, int thread_num, const char *codec_name_list[]) {
     assert(track && codec_name_list);
-    return new FFmpegDecoder(*((Track::Ptr *) track), thread_num, toCodecList(codec_name_list));
+    return (mk_decoder)new FFmpegDecoder(*((Track::Ptr *) track), thread_num, toCodecList(codec_name_list));
 }
 
 API_EXPORT void API_CALL mk_decoder_release(mk_decoder ctx, int flush_frame) {
@@ -77,12 +77,12 @@ API_EXPORT const AVCodecContext *API_CALL mk_decoder_get_context(mk_decoder ctx)
 
 API_EXPORT mk_frame_pix API_CALL mk_frame_pix_ref(mk_frame_pix frame) {
     assert(frame);
-    return new FFmpegFrame::Ptr(*(FFmpegFrame::Ptr *) frame);
+    return (mk_frame_pix)new FFmpegFrame::Ptr(*(FFmpegFrame::Ptr *) frame);
 }
 
 API_EXPORT mk_frame_pix API_CALL mk_frame_pix_from_av_frame(AVFrame *frame) {
     assert(frame);
-    return new FFmpegFrame::Ptr(std::make_shared<FFmpegFrame>(std::shared_ptr<AVFrame>(av_frame_clone(frame), [](AVFrame *frame){
+    return (mk_frame_pix)new FFmpegFrame::Ptr(std::make_shared<FFmpegFrame>(std::shared_ptr<AVFrame>(av_frame_clone(frame), [](AVFrame *frame){
         av_frame_free(&frame);
     })));
 }
@@ -99,7 +99,7 @@ API_EXPORT mk_frame_pix API_CALL mk_frame_pix_from_buffer(mk_buffer plane_data[]
         frame->linesize[i] = line_size[i];
         buffer_array.emplace_back(buffer);
     }
-    return new FFmpegFrame::Ptr(new FFmpegFrame(std::move(frame)), [buffer_array](FFmpegFrame *frame) {
+    return (mk_frame_pix)new FFmpegFrame::Ptr(new FFmpegFrame(std::move(frame)), [buffer_array](FFmpegFrame *frame) {
         for (auto &buffer : buffer_array) {
             mk_buffer_unref(buffer);
         }
@@ -120,7 +120,7 @@ API_EXPORT AVFrame *API_CALL mk_frame_pix_get_av_frame(mk_frame_pix frame) {
 /////////////////////////////////////////////////////////////////////////////////////////////
 
 API_EXPORT mk_swscale mk_swscale_create(int output, int width, int height) {
-    return new FFmpegSws((AVPixelFormat) output, width, height);
+    return (mk_swscale)new FFmpegSws((AVPixelFormat) output, width, height);
 }
 
 API_EXPORT void mk_swscale_release(mk_swscale ctx) {
@@ -132,7 +132,7 @@ API_EXPORT int mk_swscale_input_frame(mk_swscale ctx, mk_frame_pix frame, uint8_
 }
 
 API_EXPORT mk_frame_pix mk_swscale_input_frame2(mk_swscale ctx, mk_frame_pix frame){
-    return new FFmpegFrame::Ptr(((FFmpegSws *) ctx)->inputFrame(*(FFmpegFrame::Ptr *) frame));
+    return (mk_frame_pix)new FFmpegFrame::Ptr(((FFmpegSws *) ctx)->inputFrame(*(FFmpegFrame::Ptr *) frame));
 }
 
 API_EXPORT uint8_t **API_CALL mk_get_av_frame_data(AVFrame *frame) {
diff --git a/api/source/mk_util.cpp b/api/source/mk_util.cpp
index e6265000..6c775529 100644
--- a/api/source/mk_util.cpp
+++ b/api/source/mk_util.cpp
@@ -55,11 +55,11 @@ API_EXPORT char* API_CALL mk_util_hex_dump(const void *buf, int len){
 }
 
 API_EXPORT mk_ini API_CALL mk_ini_create() {
-    return new mINI;
+    return (mk_ini)new mINI;
 }
 
 API_EXPORT mk_ini API_CALL mk_ini_default() {
-    return &(mINI::Instance());
+    return (mk_ini)&(mINI::Instance());
 }
 
 static void emit_ini_file_reload(mk_ini ini) {
diff --git a/api/tests/pusher.c b/api/tests/pusher.c
index 08c7661e..a6f3cd2d 100644
--- a/api/tests/pusher.c
+++ b/api/tests/pusher.c
@@ -32,7 +32,7 @@ void release_player(mk_player *ptr) {
     }
 }
 
-void release_pusher(mk_media *ptr) {
+void release_pusher(mk_pusher *ptr) {
     if (ptr && *ptr) {
         mk_pusher_release(*ptr);
         *ptr = NULL;