新增c sdk api，防止user_data导致的内存泄露

api/include/mk_common.h

@@ -47,6 +47,9 @@ extern "C" {
 //输出日志到回调函数(mk_events::on_mk_log)
 #define LOG_CALLBACK    (1 << 2)
 
+//回调user_data回调函数
+typedef void(API_CALL *on_user_data_free)(void *user_data);
+
 typedef struct {
     // 线程数
     int thread_num;
@@ -183,6 +186,9 @@ typedef void(API_CALL *on_mk_webrtc_get_answer_sdp)(void *user_data, const char
 API_EXPORT void API_CALL mk_webrtc_get_answer_sdp(void *user_data, on_mk_webrtc_get_answer_sdp cb, const char *type,
                                                   const char *offer, const char *url);
 
+API_EXPORT void API_CALL mk_webrtc_get_answer_sdp2(void *user_data, on_user_data_free user_data_free, on_mk_webrtc_get_answer_sdp cb, const char *type,
+                                                  const char *offer, const char *url);
+
 /**
  * 创建srt服务器
  * @param port srt监听端口

api/include/mk_events_objects.h

@@ -120,6 +120,7 @@ typedef void(API_CALL *on_mk_media_source_send_rtp_result)(void *user_data, uint
 
 //MediaSource::startSendRtp,请参考mk_media_start_send_rtp,注意ctx参数类型不一样
 API_EXPORT void API_CALL mk_media_source_start_send_rtp(const mk_media_source ctx, const char *dst_url, uint16_t dst_port, const char *ssrc, int is_udp, on_mk_media_source_send_rtp_result cb, void *user_data);
+API_EXPORT void API_CALL mk_media_source_start_send_rtp2(const mk_media_source ctx, const char *dst_url, uint16_t dst_port, const char *ssrc, int is_udp, on_mk_media_source_send_rtp_result cb, void *user_data, on_user_data_free user_data_free);
 //MediaSource::stopSendRtp，请参考mk_media_stop_send_rtp,注意ctx参数类型不一样
 API_EXPORT int API_CALL mk_media_source_stop_send_rtp(const mk_media_source ctx);
 

api/include/mk_frame.h

@@ -57,7 +57,8 @@ typedef void(API_CALL *on_mk_frame_data_release)(void *user_data, char *ptr);
  */
 API_EXPORT mk_frame API_CALL mk_frame_create(int codec_id, uint64_t dts, uint64_t pts, const char *data, size_t size,
                                             on_mk_frame_data_release cb, void *user_data);
-
+API_EXPORT mk_frame API_CALL mk_frame_create2(int codec_id, uint64_t dts, uint64_t pts, const char *data, size_t size,
+                                             on_mk_frame_data_release cb, void *user_data, on_user_data_free user_data_free);
 /**
  * 减引用frame对象
  * @param frame 帧对象引用

api/include/mk_h264_splitter.h

@@ -36,6 +36,7 @@ typedef void(API_CALL *on_mk_h264_splitter_frame)(void *user_data, mk_h264_split
  * @return 分帧器对象
  */
 API_EXPORT mk_h264_splitter API_CALL mk_h264_splitter_create(on_mk_h264_splitter_frame cb, void *user_data, int is_h265);
+API_EXPORT mk_h264_splitter API_CALL mk_h264_splitter_create2(on_mk_h264_splitter_frame cb, void *user_data, on_user_data_free user_data_free, int is_h265);
 
 /**
  * 删除h264分帧器

api/include/mk_httpclient.h

@@ -51,7 +51,7 @@ API_EXPORT void API_CALL mk_http_downloader_release(mk_http_downloader ctx);
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_http_downloader_start(mk_http_downloader ctx, const char *url, const char *file, on_mk_download_complete cb, void *user_data);
-
+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;
@@ -143,6 +143,7 @@ API_EXPORT mk_parser API_CALL mk_http_requester_get_response(mk_http_requester c
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_http_requester_set_cb(mk_http_requester ctx,on_mk_http_requester_complete cb, void *user_data);
+API_EXPORT void API_CALL mk_http_requester_set_cb2(mk_http_requester ctx,on_mk_http_requester_complete cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 开始url请求

api/include/mk_media.h

@@ -183,6 +183,7 @@ typedef void(API_CALL *on_mk_media_close)(void *user_data);
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_media_set_on_close(mk_media ctx, on_mk_media_close cb, void *user_data);
+API_EXPORT void API_CALL mk_media_set_on_close2(mk_media ctx, on_mk_media_close cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 收到客户端的seek请求时触发该回调
@@ -213,6 +214,7 @@ typedef int(API_CALL* on_mk_media_speed)(void* user_data, float speed);
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_media_set_on_seek(mk_media ctx, on_mk_media_seek cb, void *user_data);
+API_EXPORT void API_CALL mk_media_set_on_seek2(mk_media ctx, on_mk_media_seek cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 监听播放器pause请求事件
@@ -220,7 +222,8 @@ API_EXPORT void API_CALL mk_media_set_on_seek(mk_media ctx, on_mk_media_seek cb,
  * @param cb 回调指针
  * @param user_data 用户数据指针
  */
-API_EXPORT void API_CALL mk_media_set_on_pause(mk_media ctx, on_mk_media_pause cb, void* user_data);
+API_EXPORT void API_CALL mk_media_set_on_pause(mk_media ctx, on_mk_media_pause cb, void *user_data);
+API_EXPORT void API_CALL mk_media_set_on_pause2(mk_media ctx, on_mk_media_pause cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 监听播放器pause请求事件
@@ -228,7 +231,8 @@ API_EXPORT void API_CALL mk_media_set_on_pause(mk_media ctx, on_mk_media_pause c
  * @param cb 回调指针
  * @param user_data 用户数据指针
  */
-API_EXPORT void API_CALL mk_media_set_on_speed(mk_media ctx, on_mk_media_speed cb, void* user_data);
+API_EXPORT void API_CALL mk_media_set_on_speed(mk_media ctx, on_mk_media_speed cb, void *user_data);
+API_EXPORT void API_CALL mk_media_set_on_speed2(mk_media ctx, on_mk_media_speed cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 获取总的观看人数
@@ -252,6 +256,7 @@ typedef void(API_CALL *on_mk_media_source_regist)(void *user_data, mk_media_sour
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_media_set_on_regist(mk_media ctx, on_mk_media_source_regist cb, void *user_data);
+API_EXPORT void API_CALL mk_media_set_on_regist2(mk_media ctx, on_mk_media_source_regist cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * rtp推流成功与否的回调(第一次成功后，后面将一直重试)
@@ -269,6 +274,7 @@ typedef on_mk_media_source_send_rtp_result on_mk_media_send_rtp_result;
  * @param user_data 回调用户指针
  */
 API_EXPORT void API_CALL mk_media_start_send_rtp(mk_media ctx, const char *dst_url, uint16_t dst_port, const char *ssrc, int is_udp, on_mk_media_send_rtp_result cb, void *user_data);
+API_EXPORT void API_CALL mk_media_start_send_rtp2(mk_media ctx, const char *dst_url, uint16_t dst_port, const char *ssrc, int is_udp, on_mk_media_send_rtp_result cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 停止某路或全部ps-rtp发送，此api线程安全

api/include/mk_player.h

@@ -94,6 +94,7 @@ API_EXPORT void API_CALL mk_player_seekto_pos(mk_player ctx, int seek_pos);
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_player_set_on_result(mk_player ctx, on_mk_play_event cb, void *user_data);
+API_EXPORT void API_CALL mk_player_set_on_result2(mk_player ctx, on_mk_play_event cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 设置播放被异常中断的回调
@@ -102,6 +103,7 @@ API_EXPORT void API_CALL mk_player_set_on_result(mk_player ctx, on_mk_play_event
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_player_set_on_shutdown(mk_player ctx, on_mk_play_event cb, void *user_data);
+API_EXPORT void API_CALL mk_player_set_on_shutdown2(mk_player ctx, on_mk_play_event cb, void *user_data, on_user_data_free user_data_free);
 
 ///////////////////////////获取音视频相关信息接口在播放成功回调触发后才有效///////////////////////////////
 

api/include/mk_proxyplayer.h

@@ -70,6 +70,7 @@ typedef void(API_CALL *on_mk_proxy_player_close)(void *user_data, int err, const
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_proxy_player_set_on_close(mk_proxy_player ctx, on_mk_proxy_player_close cb, void *user_data);
+API_EXPORT void API_CALL mk_proxy_player_set_on_close2(mk_proxy_player ctx, on_mk_proxy_player_close cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 获取总的观看人数

api/include/mk_pusher.h

@@ -79,6 +79,7 @@ API_EXPORT void API_CALL mk_pusher_publish(mk_pusher ctx,const char *url);
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_pusher_set_on_result(mk_pusher ctx, on_mk_push_event cb, void *user_data);
+API_EXPORT void API_CALL mk_pusher_set_on_result2(mk_pusher ctx, on_mk_push_event cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 设置推流被异常中断的回调
@@ -87,6 +88,7 @@ API_EXPORT void API_CALL mk_pusher_set_on_result(mk_pusher ctx, on_mk_push_event
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_pusher_set_on_shutdown(mk_pusher ctx, on_mk_push_event cb, void *user_data);
+API_EXPORT void API_CALL mk_pusher_set_on_shutdown2(mk_pusher ctx, on_mk_push_event cb, void *user_data, on_user_data_free user_data_free);
 
 #ifdef __cplusplus
 }

api/include/mk_rtp_server.h

@@ -40,6 +40,7 @@ typedef void(API_CALL *on_mk_rtp_server_connected)(void *user_data, int err, con
  * @return
  */
 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);
+API_EXPORT void API_CALL mk_rtp_server_connect2(mk_rtp_server ctx, const char *dst_url, uint16_t dst_port, on_mk_rtp_server_connected cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 销毁GB28181 RTP 服务器
@@ -67,7 +68,7 @@ typedef void(API_CALL *on_mk_rtp_server_detach)(void *user_data);
  * @param user_data 回调函数用户数据指针
  */
 API_EXPORT void API_CALL mk_rtp_server_set_on_detach(mk_rtp_server ctx, on_mk_rtp_server_detach cb, void *user_data);
-
+API_EXPORT void API_CALL mk_rtp_server_set_on_detach2(mk_rtp_server ctx, on_mk_rtp_server_detach cb, void *user_data, on_user_data_free user_data_free);
 
 #ifdef __cplusplus
 }

api/include/mk_tcp.h

@@ -31,6 +31,7 @@ typedef void(API_CALL *on_mk_buffer_free)(void *user_data, void *data);
  * @return buffer对象
  */
 API_EXPORT mk_buffer API_CALL mk_buffer_from_char(const char *data, size_t len, on_mk_buffer_free cb, void *user_data);
+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);
 API_EXPORT mk_buffer API_CALL mk_buffer_ref(mk_buffer buffer);
 API_EXPORT void API_CALL mk_buffer_unref(mk_buffer buffer);
 API_EXPORT const char* API_CALL mk_buffer_get_data(mk_buffer buffer);
@@ -141,7 +142,8 @@ typedef enum {
  * @param session 会话对象
  * @param user_data 用户数据指针
  */
-API_EXPORT void API_CALL mk_tcp_session_set_user_data(mk_tcp_session session,void *user_data);
+API_EXPORT void API_CALL mk_tcp_session_set_user_data(mk_tcp_session session, void *user_data);
+API_EXPORT void API_CALL mk_tcp_session_set_user_data2(mk_tcp_session session, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 获取tcp会话对象上附着的用户数据
@@ -250,7 +252,8 @@ API_EXPORT void API_CALL mk_tcp_client_send_buffer_safe(mk_tcp_client ctx, mk_bu
  * @param ctx 客户端对象
  * @param user_data 用户数据指针
  */
-API_EXPORT void API_CALL mk_tcp_client_set_user_data(mk_tcp_client ctx,void *user_data);
+API_EXPORT void API_CALL mk_tcp_client_set_user_data(mk_tcp_client ctx, void *user_data);
+API_EXPORT void API_CALL mk_tcp_client_set_user_data2(mk_tcp_client ctx, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 获取客户端对象上附着的用户数据

api/include/mk_thread.h

@@ -87,6 +87,7 @@ typedef void (API_CALL *on_mk_async)(void *user_data);
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_async_do(mk_thread ctx, on_mk_async cb, void *user_data);
+API_EXPORT void API_CALL mk_async_do2(mk_thread ctx, on_mk_async cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 切换到事件线程并延时执行
@@ -96,6 +97,7 @@ API_EXPORT void API_CALL mk_async_do(mk_thread ctx, on_mk_async cb, void *user_d
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_async_do_delay(mk_thread ctx, size_t ms, on_mk_async cb, void *user_data);
+API_EXPORT void API_CALL mk_async_do_delay2(mk_thread ctx, size_t ms, on_mk_async cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 切换到事件线程并同步执行
@@ -123,6 +125,7 @@ typedef uint64_t (API_CALL *on_mk_timer)(void *user_data);
  * @return 定时器对象
  */
 API_EXPORT mk_timer API_CALL mk_timer_create(mk_thread ctx, uint64_t delay_ms, on_mk_timer cb, void *user_data);
+API_EXPORT mk_timer API_CALL mk_timer_create2(mk_thread ctx, uint64_t delay_ms, on_mk_timer cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 销毁和取消定时器

api/include/mk_track.h

@@ -80,6 +80,7 @@ API_EXPORT int API_CALL mk_track_bit_rate(mk_track track);
  * @param user_data frame输出回调用户指针参数
  */
 API_EXPORT void *API_CALL mk_track_add_delegate(mk_track track, on_mk_frame_out cb, void *user_data);
+API_EXPORT void *API_CALL mk_track_add_delegate2(mk_track track, on_mk_frame_out cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 取消frame输出事件监听

api/include/mk_transcode.h

@@ -78,6 +78,7 @@ API_EXPORT void API_CALL mk_decoder_set_max_async_frame_size(mk_decoder ctx, siz
  * @param user_data 回调函数用户指针参数
  */
 API_EXPORT void API_CALL mk_decoder_set_cb(mk_decoder ctx, on_mk_decode cb, void *user_data);
+API_EXPORT void API_CALL mk_decoder_set_cb2(mk_decoder ctx, on_mk_decode cb, void *user_data, on_user_data_free user_data_free);
 
 /**
  * 获取FFmpeg原始AVCodecContext对象

api/source/mk_common.cpp

@@ -296,17 +296,22 @@ private:
 
 API_EXPORT void API_CALL mk_webrtc_get_answer_sdp(void *user_data,  on_mk_webrtc_get_answer_sdp cb, const char *type,
                                                    const char *offer, const char *url) {
+    mk_webrtc_get_answer_sdp2(user_data, nullptr, cb, type, offer, url);
+}
+API_EXPORT void API_CALL mk_webrtc_get_answer_sdp2(void *user_data, on_user_data_free user_data_free, on_mk_webrtc_get_answer_sdp cb, const char *type,
+                                                  const char *offer, const char *url) {
 #ifdef ENABLE_WEBRTC
     assert(type && offer && url && cb);
     auto session = std::make_shared<HttpSession>(Socket::createSocket());
     std::string offer_str = offer;
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
     WebRtcPluginManager::Instance().getAnswerSdp(*session, type, WebRtcArgsUrl(url),
-                                                 [offer_str, session, user_data, cb](const WebRtcInterface &exchanger) mutable {
+                                                 [offer_str, session, ptr, cb](const WebRtcInterface &exchanger) mutable {
         try {
             auto sdp_answer = const_cast<WebRtcInterface &>(exchanger).getAnswerSdp(offer_str);
-            cb(user_data, sdp_answer.data(), nullptr);
+            cb(ptr.get(), sdp_answer.data(), nullptr);
         } catch (std::exception &ex) {
-            cb(user_data, nullptr, ex.what());
+            cb(ptr.get(), nullptr, ex.what());
         }
     });
 #else

api/source/mk_events_objects.cpp

@@ -208,8 +208,11 @@ API_EXPORT int API_CALL mk_media_source_seek_to(const mk_media_source ctx,uint32
     MediaSource *src = (MediaSource *)ctx;
     return src->seekTo(stamp);
 }
+API_EXPORT void API_CALL mk_media_source_start_send_rtp(const mk_media_source ctx, const char *dst_url, uint16_t dst_port, const char *ssrc, int is_udp, on_mk_media_source_send_rtp_result cb, void *user_data) {
+    mk_media_source_start_send_rtp2(ctx, dst_url, dst_port, ssrc, is_udp, cb, user_data, nullptr);
+}
 
-API_EXPORT void API_CALL mk_media_source_start_send_rtp(const mk_media_source ctx, const char *dst_url, uint16_t dst_port, const char *ssrc, int is_udp, on_mk_media_source_send_rtp_result cb, void *user_data){
+API_EXPORT void API_CALL mk_media_source_start_send_rtp2(const mk_media_source ctx, const char *dst_url, uint16_t dst_port, const char *ssrc, int is_udp, on_mk_media_source_send_rtp_result cb, void *user_data, on_user_data_free user_data_free){
     assert(ctx && dst_url && ssrc);
     MediaSource *src = (MediaSource *)ctx;
 
@@ -219,9 +222,10 @@ API_EXPORT void API_CALL mk_media_source_start_send_rtp(const mk_media_source ct
     args.ssrc = ssrc;
     args.is_udp = is_udp;
 
-    src->startSendRtp(args, [cb, user_data](uint16_t local_port, const SockException &ex){
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    src->startSendRtp(args, [cb, ptr](uint16_t local_port, const SockException &ex){
         if (cb) {
-            cb(user_data, local_port, ex.getErrCode(), ex.what());
+            cb(ptr.get(), local_port, ex.getErrCode(), ex.what());
         }
     });
 }

api/source/mk_frame.cpp

@@ -27,17 +27,17 @@ public:
     using Ptr = std::shared_ptr<FrameFromPtrForC>;
 
     template<typename ...ARGS>
-    FrameFromPtrForC(bool cache_able, uint32_t flags, on_mk_frame_data_release cb, void *user_data, ARGS &&...args) : FrameFromPtr(
+    FrameFromPtrForC(bool cache_able, uint32_t flags, on_mk_frame_data_release cb, std::shared_ptr<void> user_data, ARGS &&...args) : FrameFromPtr(
             std::forward<ARGS>(args)...) {
         _flags = flags;
         _cb = cb;
-        _user_data = user_data;
+        _user_data = std::move(user_data);
         _cache_able = cache_able;
     }
 
     ~FrameFromPtrForC() override {
         if (_cb) {
-            _cb(_user_data, _ptr);
+            _cb(_user_data.get(), _ptr);
         }
     }
 
@@ -66,43 +66,47 @@ public:
 private:
     uint32_t _flags;
     on_mk_frame_data_release _cb;
-    void *_user_data;
+    std::shared_ptr<void> _user_data;
     bool _cache_able;
 };
 
 static mk_frame mk_frame_create_complex(int codec_id, uint64_t dts, uint64_t pts, uint32_t frame_flags, size_t prefix_size,
-                                       char *data, size_t size, on_mk_frame_data_release cb, void *user_data) {
+                                       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>(cb, frame_flags, cb, user_data, (CodecId) codec_id,
+            return new Frame::Ptr(new H264FrameHelper<FrameFromPtrForC>(
-                                                                        data, size, dts, pts, prefix_size));
+                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>(cb, frame_flags, cb, user_data, (CodecId) codec_id,
+            return new Frame::Ptr(new H265FrameHelper<FrameFromPtrForC>(
-                                                                        data, size, dts, pts, prefix_size));
+                cb, frame_flags, cb, std::move(user_data), (CodecId)codec_id, data, size, dts, pts, prefix_size));
         default:
-            return new Frame::Ptr(new FrameFromPtrForC(cb, frame_flags, cb, user_data, (CodecId) codec_id, data,
+            return new Frame::Ptr(new FrameFromPtrForC(
-                                                       size, dts, pts, prefix_size));
+                cb, frame_flags, cb, std::move(user_data), (CodecId)codec_id, data, size, dts, pts, prefix_size));
     }
 }
 
 API_EXPORT mk_frame API_CALL mk_frame_create(int codec_id, uint64_t dts, uint64_t pts, const char *data, size_t size,
                                               on_mk_frame_data_release cb, void *user_data) {
-
+    return mk_frame_create2(codec_id, dts, pts, data, size, cb, user_data, nullptr);
+}
+API_EXPORT mk_frame API_CALL mk_frame_create2(int codec_id, uint64_t dts, uint64_t pts, const char *data, size_t size,
+                                            on_mk_frame_data_release cb, void *user_data, on_user_data_free user_data_free) {
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
     switch (codec_id) {
         case CodecH264:
         case CodecH265:
-            return mk_frame_create_complex(codec_id, dts, pts, 0, prefixSize(data, size), (char *)data, size, cb, user_data);
+            return mk_frame_create_complex(codec_id, dts, pts, 0, prefixSize(data, size), (char *)data, size, cb, std::move(ptr));
 
         case CodecAAC: {
             int prefix = 0;
             if ((((uint8_t *) data)[0] == 0xFF && (((uint8_t *) data)[1] & 0xF0) == 0xF0) && size > ADTS_HEADER_LEN) {
                 prefix = ADTS_HEADER_LEN;
             }
-            return mk_frame_create_complex(codec_id, dts, pts, 0, prefix, (char *)data, size, cb, user_data);
+            return mk_frame_create_complex(codec_id, dts, pts, 0, prefix, (char *)data, size, cb, std::move(ptr));
         }
 
         default:
-            return mk_frame_create_complex(codec_id, dts, pts, 0, 0, (char *)data, size, cb, user_data);
+            return mk_frame_create_complex(codec_id, dts, pts, 0, 0, (char *)data, size, cb, std::move(ptr));
     }
 }
 

api/source/mk_h264_splitter.cpp

@@ -86,12 +86,17 @@ const char *H264Splitter::onSearchPacketTail(const char *data, size_t len) {
 ////////////////////////////////////////////////////////////////////////////////////////////////////////
 
 API_EXPORT mk_h264_splitter API_CALL mk_h264_splitter_create(on_mk_h264_splitter_frame cb, void *user_data, int is_h265) {
+    return mk_h264_splitter_create2(cb, user_data, nullptr, is_h265);
+}
+
+API_EXPORT mk_h264_splitter API_CALL mk_h264_splitter_create2(on_mk_h264_splitter_frame cb, void *user_data, on_user_data_free user_data_free, int is_h265) {
     assert(cb);
-    auto ptr = new H264Splitter(is_h265);
+    auto ret = new H264Splitter(is_h265);
-    ptr->setOnSplitted([cb, ptr, user_data](const char *data, size_t len) {
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
-        cb(user_data, reinterpret_cast<mk_h264_splitter>(ptr), data, len);
+    ret->setOnSplitted([cb, ptr, ret](const char *data, size_t len) {
+        cb(ptr.get(), reinterpret_cast<mk_h264_splitter>(ret), data, len);
     });
-    return reinterpret_cast<mk_h264_splitter>(ptr);
+    return reinterpret_cast<mk_h264_splitter>(ret);
 }
 
 API_EXPORT void API_CALL mk_h264_splitter_release(mk_h264_splitter ctx){

api/source/mk_httpclient.cpp

@@ -30,17 +30,21 @@ API_EXPORT void API_CALL mk_http_downloader_release(mk_http_downloader ctx) {
 }
 
 API_EXPORT void API_CALL mk_http_downloader_start(mk_http_downloader ctx, const char *url, const char *file, on_mk_download_complete cb, void *user_data) {
+    mk_http_downloader_start2(ctx, url, file, cb, user_data, nullptr);
+}
+
+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) {
     assert(ctx && url && file);
     HttpDownloader::Ptr *obj = (HttpDownloader::Ptr *) ctx;
-    (*obj)->setOnResult([cb, user_data](const SockException &ex, const string &filePath) {
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    (*obj)->setOnResult([cb, ptr](const SockException &ex, const string &filePath) {
         if (cb) {
-            cb(user_data, ex.getErrCode(), ex.what(), filePath.data());
+            cb(ptr.get(), ex.getErrCode(), ex.what(), filePath.data());
         }
     });
     (*obj)->startDownload(url, file, false);
 }
 
-
 ///////////////////////////////////////////HttpRequester/////////////////////////////////////////////
 API_EXPORT mk_http_requester API_CALL mk_http_requester_create(){
     HttpRequester::Ptr *ret = new HttpRequester::Ptr(new HttpRequester);
@@ -128,11 +132,16 @@ API_EXPORT mk_parser API_CALL mk_http_requester_get_response(mk_http_requester c
     return (mk_parser)&((*obj)->response());
 }
 
-API_EXPORT void API_CALL mk_http_requester_set_cb(mk_http_requester ctx,on_mk_http_requester_complete cb, void *user_data){
+API_EXPORT void API_CALL mk_http_requester_set_cb(mk_http_requester ctx,on_mk_http_requester_complete cb, void *user_data) {
+    mk_http_requester_set_cb2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_http_requester_set_cb2(mk_http_requester ctx,on_mk_http_requester_complete cb, void *user_data, on_user_data_free user_data_free) {
     assert(ctx && cb);
     HttpRequester::Ptr *obj = (HttpRequester::Ptr *)ctx;
-    (*obj)->setOnResult([cb, user_data](const SockException &ex, const Parser &res) {
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
-        cb(user_data, ex.getErrCode(), ex.what());
+    (*obj)->setOnResult([cb, ptr](const SockException &ex, const Parser &res) {
+        cb(ptr.get(), ex.getErrCode(), ex.what());
     });
 }
 

api/source/mk_media.cpp

@@ -23,7 +23,8 @@ public:
     MediaHelper(ArgsType &&...args){
         _channel = std::make_shared<DevChannel>(std::forward<ArgsType>(args)...);
     }
-    ~MediaHelper(){}
+
+    ~MediaHelper() = default;
 
     void attachEvent(){
         _channel->setMediaListener(shared_from_this());
@@ -33,29 +34,29 @@ public:
         return _channel;
     }
 
-    void setOnClose(on_mk_media_close cb, void *user_data){
+    void setOnClose(on_mk_media_close cb, std::shared_ptr<void> user_data){
         _on_close = cb;
-        _on_close_data = user_data;
+        _on_close_data = std::move(user_data);
     }
 
-    void setOnSeek(on_mk_media_seek cb, void *user_data){
+    void setOnSeek(on_mk_media_seek cb, std::shared_ptr<void> user_data){
         _on_seek = cb;
-        _on_seek_data = user_data;
+        _on_seek_data = std::move(user_data);
     }
 
-    void setOnPause(on_mk_media_pause cb, void* user_data) {
+    void setOnPause(on_mk_media_pause cb, std::shared_ptr<void> user_data) {
         _on_pause = cb;
-        _on_pause_data = user_data;
+        _on_pause_data = std::move(user_data);
     }
 
-    void setOnSpeed(on_mk_media_speed cb, void* user_data) {
+    void setOnSpeed(on_mk_media_speed cb, std::shared_ptr<void> user_data) {
         _on_speed = cb;
-        _on_speed_data = user_data;
+        _on_speed_data = std::move(user_data);
     }
 
-    void setOnRegist(on_mk_media_source_regist cb, void *user_data){
+    void setOnRegist(on_mk_media_source_regist cb, std::shared_ptr<void> user_data){
         _on_regist = cb;
-        _on_regist_data = user_data;
+        _on_regist_data = std::move(user_data);
     }
 
 protected:
@@ -67,7 +68,7 @@ protected:
             return false;
         }
         //请在回调中调用mk_media_release函数释放资源,否则MediaSource::close()操作不会生效
-        _on_close(_on_close_data);
+        _on_close(_on_close_data.get());
         WarnL << "close media: " << sender.getUrl();
         return true;
     }
@@ -76,7 +77,7 @@ protected:
         if (!_on_seek) {
             return false;
         }
-        return _on_seek(_on_seek_data, stamp);
+        return _on_seek(_on_seek_data.get(), stamp);
     }
 
     // 通知暂停或恢复
@@ -84,7 +85,7 @@ protected:
         if (!_on_pause) {
             return false;
         }
-        return _on_pause(_on_pause_data, pause);
+        return _on_pause(_on_pause_data.get(), pause);
     }
 
     //通知倍数播放
@@ -92,12 +93,12 @@ protected:
         if (!_on_speed) {
             return false;
         }
-        return _on_speed(_on_speed_data, speed);
+        return _on_speed(_on_speed_data.get(), speed);
     }
 
     void onRegist(MediaSource &sender, bool regist) override{
         if (_on_regist) {
-            _on_regist(_on_regist_data, &sender, regist);
+            _on_regist(_on_regist_data.get(), &sender, regist);
         }
     }
 
@@ -108,41 +109,66 @@ private:
     on_mk_media_pause _on_pause = nullptr;
     on_mk_media_speed _on_speed = nullptr;
     on_mk_media_source_regist _on_regist = nullptr;
-    void* _on_seek_data;
+    std::shared_ptr<void> _on_seek_data;
-    void* _on_pause_data;
+    std::shared_ptr<void> _on_pause_data;
-    void* _on_speed_data;
+    std::shared_ptr<void> _on_speed_data;
-    void *_on_close_data;
+    std::shared_ptr<void> _on_close_data;
-    void *_on_regist_data;
+    std::shared_ptr<void> _on_regist_data;
 };
 
 API_EXPORT void API_CALL mk_media_set_on_close(mk_media ctx, on_mk_media_close cb, void *user_data){
+    mk_media_set_on_close2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_media_set_on_close2(mk_media ctx, on_mk_media_close cb, void *user_data, on_user_data_free user_data_free) {
     assert(ctx);
     MediaHelper::Ptr *obj = (MediaHelper::Ptr *) ctx;
-    (*obj)->setOnClose(cb, user_data);
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    (*obj)->setOnClose(cb, std::move(ptr));
 }
 
 API_EXPORT void API_CALL mk_media_set_on_seek(mk_media ctx, on_mk_media_seek cb, void *user_data) {
+    mk_media_set_on_seek2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_media_set_on_seek2(mk_media ctx, on_mk_media_seek cb, void *user_data, on_user_data_free user_data_free) {
     assert(ctx);
     MediaHelper::Ptr *obj = (MediaHelper::Ptr *) ctx;
-    (*obj)->setOnSeek(cb, user_data);
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    (*obj)->setOnSeek(cb, std::move(ptr));
 }
 
 API_EXPORT void API_CALL mk_media_set_on_pause(mk_media ctx, on_mk_media_pause cb, void *user_data) {
+    mk_media_set_on_pause2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_media_set_on_pause2(mk_media ctx, on_mk_media_pause cb, void *user_data, on_user_data_free user_data_free) {
     assert(ctx);
     MediaHelper::Ptr *obj = (MediaHelper::Ptr *) ctx;
-    (*obj)->setOnPause(cb, user_data);
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    (*obj)->setOnPause(cb, std::move(ptr));
 }
 
 API_EXPORT void API_CALL mk_media_set_on_speed(mk_media ctx, on_mk_media_speed cb, void *user_data) {
+    mk_media_set_on_speed2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_media_set_on_speed2(mk_media ctx, on_mk_media_speed cb, void *user_data, on_user_data_free user_data_free){
     assert(ctx);
     MediaHelper::Ptr *obj = (MediaHelper::Ptr *) ctx;
-    (*obj)->setOnSpeed(cb, user_data);
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    (*obj)->setOnSpeed(cb, std::move(ptr));
 }
 
 API_EXPORT void API_CALL mk_media_set_on_regist(mk_media ctx, on_mk_media_source_regist cb, void *user_data){
+    mk_media_set_on_regist2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_media_set_on_regist2(mk_media ctx, on_mk_media_source_regist cb, void *user_data, on_user_data_free user_data_free) {
     assert(ctx);
     MediaHelper::Ptr *obj = (MediaHelper::Ptr *) ctx;
-    (*obj)->setOnRegist(cb, user_data);
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    (*obj)->setOnRegist(cb, std::move(ptr));
 }
 
 API_EXPORT int API_CALL mk_media_total_reader_count(mk_media ctx){
@@ -254,7 +280,11 @@ API_EXPORT int API_CALL mk_media_input_audio(mk_media ctx, const void* data, int
     return (*obj)->getChannel()->inputAudio((const char*)data, len, dts);
 }
 
-API_EXPORT void API_CALL mk_media_start_send_rtp(mk_media ctx, const char *dst_url, uint16_t dst_port, const char *ssrc, int is_udp, on_mk_media_send_rtp_result cb, void *user_data){
+API_EXPORT void API_CALL mk_media_start_send_rtp(mk_media ctx, const char *dst_url, uint16_t dst_port, const char *ssrc, int is_udp, on_mk_media_send_rtp_result cb, void *user_data) {
+    mk_media_start_send_rtp2(ctx, dst_url, dst_port, ssrc, is_udp, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_media_start_send_rtp2(mk_media ctx, const char *dst_url, uint16_t dst_port, const char *ssrc, int is_udp, on_mk_media_send_rtp_result cb, void *user_data, on_user_data_free user_data_free){
     assert(ctx && dst_url && ssrc);
     MediaHelper::Ptr* obj = (MediaHelper::Ptr*) ctx;
 
@@ -266,10 +296,11 @@ API_EXPORT void API_CALL mk_media_start_send_rtp(mk_media ctx, const char *dst_u
 
     // sender参数无用
     auto ref = *obj;
-    (*obj)->getChannel()->getOwnerPoller(MediaSource::NullMediaSource())->async([args, ref, cb, user_data]() {
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
-        ref->getChannel()->startSendRtp(MediaSource::NullMediaSource(), args, [cb, user_data](uint16_t local_port, const SockException &ex) {
+    (*obj)->getChannel()->getOwnerPoller(MediaSource::NullMediaSource())->async([args, ref, cb, ptr]() {
+        ref->getChannel()->startSendRtp(MediaSource::NullMediaSource(), args, [cb, ptr](uint16_t local_port, const SockException &ex) {
             if (cb) {
-                cb(user_data, local_port, ex.getErrCode(), ex.what());
+                cb(ptr.get(), local_port, ex.getErrCode(), ex.what());
             }
         });
     });

api/source/mk_player.cpp

@@ -61,7 +61,7 @@ public:
         if (is_shutdown) {
             //播放中断
             if (_on_shutdown) {
-                _on_shutdown(_on_shutdown_data, ex.getErrCode(), ex.what(), nullptr, 0);
+                _on_shutdown(_on_shutdown_data.get(), ex.getErrCode(), ex.what(), nullptr, 0);
             }
             return;
         }
@@ -74,17 +74,17 @@ public:
             for (auto &track : cpp_tracks) {
                 tracks[track_count++] = (mk_track) &track;
             }
-            _on_play(_on_play_data, ex.getErrCode(), ex.what(), tracks, track_count);
+            _on_play(_on_play_data.get(), ex.getErrCode(), ex.what(), tracks, track_count);
         }
     }
 
-    void setOnEvent(on_mk_play_event cb, void *user_data, int type) {
+    void setOnEvent(on_mk_play_event cb, std::shared_ptr<void> user_data, int type) {
         lock_guard<recursive_mutex> lck(_mtx);
-        if(type == 0){
+        if (type == 0) {
-            _on_play_data = user_data;
+            _on_play_data = std::move(user_data);
             _on_play = cb;
-        }else{
+        } else {
-            _on_shutdown_data = user_data;
+            _on_shutdown_data = std::move(user_data);
             _on_shutdown = cb;
         }
     }
@@ -98,8 +98,8 @@ private:
     on_mk_play_event _on_play = nullptr;
     on_mk_play_event _on_shutdown = nullptr;
 
-    void *_on_play_data = nullptr;
+    std::shared_ptr<void> _on_play_data;
-    void *_on_shutdown_data = nullptr;
+    std::shared_ptr<void> _on_shutdown_data;
 };
 
 API_EXPORT mk_player API_CALL mk_player_create() {
@@ -175,18 +175,28 @@ API_EXPORT void API_CALL mk_player_seekto_pos(mk_player ctx, int seek_pos) {
     });
 }
 
-static void mk_player_set_on_event(mk_player ctx, on_mk_play_event cb, void *user_data, int type) {
+static void mk_player_set_on_event(mk_player ctx, on_mk_play_event cb, std::shared_ptr<void> user_data, int type) {
     assert(ctx);
     MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
-    obj.setOnEvent(cb,user_data, type);
+    obj.setOnEvent(cb, std::move(user_data), type);
 }
 
 API_EXPORT void API_CALL mk_player_set_on_result(mk_player ctx, on_mk_play_event cb, void *user_data) {
-    mk_player_set_on_event(ctx,cb,user_data,0);
+    mk_player_set_on_result2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_player_set_on_result2(mk_player ctx, on_mk_play_event cb, void *user_data, on_user_data_free user_data_free) {
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    mk_player_set_on_event(ctx, cb, std::move(ptr), 0);
 }
 
 API_EXPORT void API_CALL mk_player_set_on_shutdown(mk_player ctx, on_mk_play_event cb, void *user_data) {
-    mk_player_set_on_event(ctx,cb,user_data,1);
+    mk_player_set_on_shutdown2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_player_set_on_shutdown2(mk_player ctx, on_mk_play_event cb, void *user_data, on_user_data_free user_data_free){
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    mk_player_set_on_event(ctx, cb, std::move(ptr), 1);
 }
 
 API_EXPORT float API_CALL mk_player_duration(mk_player ctx) {

api/source/mk_proxyplayer.cpp

@@ -50,13 +50,18 @@ API_EXPORT void API_CALL mk_proxy_player_play(mk_proxy_player ctx, const char *u
 }
 
 API_EXPORT void API_CALL mk_proxy_player_set_on_close(mk_proxy_player ctx, on_mk_proxy_player_close cb, void *user_data){
+    mk_proxy_player_set_on_close2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_proxy_player_set_on_close2(mk_proxy_player ctx, on_mk_proxy_player_close cb, void *user_data, on_user_data_free user_data_free) {
     assert(ctx);
-    PlayerProxy::Ptr &obj = *((PlayerProxy::Ptr *) ctx);
+    PlayerProxy::Ptr &obj = *((PlayerProxy::Ptr *)ctx);
-    obj->getPoller()->async([obj,cb,user_data](){
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
-        //切换线程再操作
+    obj->getPoller()->async([obj, cb, ptr]() {
-        obj->setOnClose([cb,user_data](const SockException &ex){
+        // 切换线程再操作
-            if(cb){
+        obj->setOnClose([cb, ptr](const SockException &ex) {
-                cb(user_data, ex.getErrCode(), ex.what(), ex.getCustomCode());
+            if (cb) {
+                cb(ptr.get(), ex.getErrCode(), ex.what(), ex.getCustomCode());
             }
         });
     });

api/source/mk_pusher.cpp

@@ -55,23 +55,29 @@ API_EXPORT void API_CALL mk_pusher_publish(mk_pusher ctx,const char *url){
 }
 
 API_EXPORT void API_CALL mk_pusher_set_on_result(mk_pusher ctx, on_mk_push_event cb, void *user_data){
+    mk_pusher_set_on_result2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_pusher_set_on_result2(mk_pusher ctx, on_mk_push_event cb, void *user_data, on_user_data_free user_data_free) {
     assert(ctx && cb);
     MediaPusher::Ptr &obj = *((MediaPusher::Ptr *)ctx);
-    obj->getPoller()->async([obj,cb,user_data](){
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
-        //切换线程再操作
+    obj->getPoller()->async([obj, cb, ptr]() {
-        obj->setOnPublished([cb,user_data](const SockException &ex){
+        // 切换线程再操作
-            cb(user_data,ex.getErrCode(),ex.what());
+        obj->setOnPublished([cb, ptr](const SockException &ex) { cb(ptr.get(), ex.getErrCode(), ex.what()); });
-        });
     });
 }
 
 API_EXPORT void API_CALL mk_pusher_set_on_shutdown(mk_pusher ctx, on_mk_push_event cb, void *user_data){
+    mk_pusher_set_on_shutdown2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_pusher_set_on_shutdown2(mk_pusher ctx, on_mk_push_event cb, void *user_data, on_user_data_free user_data_free) {
     assert(ctx && cb);
     MediaPusher::Ptr &obj = *((MediaPusher::Ptr *)ctx);
-    obj->getPoller()->async([obj,cb,user_data](){
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
-        //切换线程再操作
+    obj->getPoller()->async([obj, cb, ptr]() {
-        obj->setOnShutdown([cb,user_data](const SockException &ex){
+        // 切换线程再操作
-            cb(user_data,ex.getErrCode(),ex.what());
+        obj->setOnShutdown([cb, ptr](const SockException &ex) { cb(ptr.get(), ex.getErrCode(), ex.what()); });
-        });
     });
 }

api/source/mk_rtp_server.cpp

@@ -23,11 +23,16 @@ API_EXPORT mk_rtp_server API_CALL mk_rtp_server_create(uint16_t port, int tcp_mo
 }
 
 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) {
+    mk_rtp_server_connect2(ctx, dst_url, dst_port, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_rtp_server_connect2(mk_rtp_server ctx, const char *dst_url, uint16_t dst_port, on_mk_rtp_server_connected cb, void *user_data, on_user_data_free user_data_free){
     RtpServer::Ptr *server = (RtpServer::Ptr *)ctx;
     if (server) {
-        (*server)->connectToServer(dst_url, dst_port, [cb, user_data](const SockException &ex) {
+        std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+        (*server)->connectToServer(dst_url, dst_port, [cb, ptr](const SockException &ex) {
             if (cb) {
-                cb(user_data, ex.getErrCode(), ex.what(), ex.getCustomCode());
+                cb(ptr.get(), ex.getErrCode(), ex.what(), ex.getCustomCode());
             }
         });
     }
@@ -44,10 +49,15 @@ API_EXPORT uint16_t API_CALL mk_rtp_server_port(mk_rtp_server ctx) {
 }
 
 API_EXPORT void API_CALL mk_rtp_server_set_on_detach(mk_rtp_server ctx, on_mk_rtp_server_detach cb, void *user_data) {
+    mk_rtp_server_set_on_detach2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_rtp_server_set_on_detach2(mk_rtp_server ctx, on_mk_rtp_server_detach cb, void *user_data, on_user_data_free user_data_free){
     RtpServer::Ptr *server = (RtpServer::Ptr *) ctx;
     if (cb) {
-        (*server)->setOnDetach([cb, user_data]() {
+        std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
-            cb(user_data);
+        (*server)->setOnDetach([cb, ptr]() {
+            cb(ptr.get());
         });
     } else {
         (*server)->setOnDetach(nullptr);

api/source/mk_tcp.cpp

@@ -20,7 +20,7 @@ using namespace mediakit;
 
 class BufferForC : public Buffer {
 public:
-    BufferForC(const char *data, size_t len, on_mk_buffer_free cb, void *user_data) {
+    BufferForC(const char *data, size_t len, on_mk_buffer_free cb, std::shared_ptr<void> user_data) {
         if (len <= 0) {
             len = strlen(data);
         }
@@ -36,11 +36,11 @@ public:
         _data = (char *) data;
         _size = len;
         _cb = cb;
-        _user_data = user_data;
+        _user_data = std::move(user_data);
     }
 
     ~BufferForC() override {
-        _cb(_user_data, _data);
+        _cb(_user_data.get(), _data);
     }
 
     char *data() const override {
@@ -55,12 +55,17 @@ private:
     char *_data;
     size_t _size;
     on_mk_buffer_free _cb;
-    void *_user_data;
+    std::shared_ptr<void> _user_data;
 };
 
 API_EXPORT mk_buffer API_CALL mk_buffer_from_char(const char *data, size_t len, on_mk_buffer_free cb, void *user_data) {
+    return mk_buffer_from_char2(data, len, cb, user_data, nullptr);
+}
+
+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);
-    return new Buffer::Ptr(std::make_shared<BufferForC>(data, len, cb, user_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)));
 }
 
 API_EXPORT mk_buffer API_CALL mk_buffer_ref(mk_buffer buffer) {
@@ -200,16 +205,21 @@ void stopAllTcpServer(){
     CLEAR_ARR(s_tcp_server);
 }
 
-API_EXPORT void API_CALL mk_tcp_session_set_user_data(mk_tcp_session session,void *user_data){
+API_EXPORT void API_CALL mk_tcp_session_set_user_data(mk_tcp_session session, void *user_data) {
+    mk_tcp_session_set_user_data2(session, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_tcp_session_set_user_data2(mk_tcp_session session, void *user_data, on_user_data_free user_data_free) {
     assert(session);
     SessionForC *obj = (SessionForC *)session;
-    obj->_user_data = user_data;
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    obj->_user_data = std::move(ptr);
 }
 
 API_EXPORT void* API_CALL mk_tcp_session_get_user_data(mk_tcp_session session){
     assert(session);
     SessionForC *obj = (SessionForC *)session;
-    return obj->_user_data;
+    return obj->_user_data.get();
 }
 
 API_EXPORT void API_CALL mk_tcp_server_events_listen(const mk_tcp_session_events *events){
@@ -364,13 +374,18 @@ API_EXPORT void API_CALL mk_tcp_client_send_safe(mk_tcp_client ctx, const char *
 }
 
 API_EXPORT void API_CALL mk_tcp_client_set_user_data(mk_tcp_client ctx,void *user_data){
+    mk_tcp_client_set_user_data2(ctx, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_tcp_client_set_user_data2(mk_tcp_client ctx, void *user_data, on_user_data_free user_data_free) {
     assert(ctx);
     TcpClientForC::Ptr *client = (TcpClientForC::Ptr *)ctx;
-    (*client)->_user_data = user_data;
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    (*client)->_user_data = std::move(ptr);
 }
 
 API_EXPORT void* API_CALL mk_tcp_client_get_user_data(mk_tcp_client ctx){
     assert(ctx);
     TcpClientForC::Ptr *client = (TcpClientForC::Ptr *)ctx;
-    return (*client)->_user_data;
+    return (*client)->_user_data.get();
 }

api/source/mk_tcp_private.h

@@ -25,7 +25,7 @@ public:
     void onManager() override;
     void onConnect(const toolkit::SockException &ex) override;
     void setClient(mk_tcp_client client);
-    void *_user_data;
+    std::shared_ptr<void> _user_data;
 private:
     mk_tcp_client_events _events;
     mk_tcp_client _client;
@@ -38,7 +38,7 @@ public:
     void onRecv(const toolkit::Buffer::Ptr &buffer) override ;
     void onError(const toolkit::SockException &err) override;
     void onManager() override;
-    void *_user_data;
+    std::shared_ptr<void> _user_data;
     uint16_t _local_port;
 };
 

api/source/mk_thread.cpp

@@ -44,11 +44,23 @@ API_EXPORT void API_CALL mk_async_do(mk_thread ctx,on_mk_async cb, void *user_da
     });
 }
 
+API_EXPORT void API_CALL mk_async_do2(mk_thread ctx, on_mk_async cb, void *user_data, on_user_data_free user_data_free){
+    assert(ctx && cb);
+    EventPoller *poller = (EventPoller *)ctx;
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
+    poller->async([cb, ptr]() { cb(ptr.get()); });
+}
+
 API_EXPORT void API_CALL mk_async_do_delay(mk_thread ctx, size_t ms, on_mk_async cb, void *user_data) {
+    mk_async_do_delay2(ctx, ms, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_async_do_delay2(mk_thread ctx, size_t ms, on_mk_async cb, void *user_data, on_user_data_free user_data_free){
     assert(ctx && cb && ms);
-    EventPoller *poller = (EventPoller *) ctx;
+    EventPoller *poller = (EventPoller *)ctx;
-    poller->doDelayTask(ms, [cb, user_data]() {
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
-        cb(user_data);
+    poller->doDelayTask(ms, [cb, ptr]() {
+        cb(ptr.get());
         return 0;
     });
 }
@@ -56,28 +68,26 @@ API_EXPORT void API_CALL mk_async_do_delay(mk_thread ctx, size_t ms, on_mk_async
 API_EXPORT void API_CALL mk_sync_do(mk_thread ctx,on_mk_async cb, void *user_data){
     assert(ctx && cb);
     EventPoller *poller = (EventPoller *)ctx;
-    poller->sync([cb,user_data](){
+    poller->sync([cb, user_data]() { cb(user_data); });
-        cb(user_data);
-    });
 }
 
 class TimerForC : public std::enable_shared_from_this<TimerForC>{
 public:
     using Ptr = std::shared_ptr<TimerForC>;
 
-    TimerForC(on_mk_timer cb, void *user_data){
+    TimerForC(on_mk_timer cb, std::shared_ptr<void> user_data) {
         _cb = cb;
-        _user_data = user_data;
+        _user_data = std::move(user_data);
     }
 
-    ~TimerForC(){}
+    ~TimerForC() = default;
 
     uint64_t operator()(){
         lock_guard<recursive_mutex> lck(_mxt);
         if(!_cb){
             return 0;
         }
-        return _cb(_user_data);
+        return _cb(_user_data.get());
     }
 
     void cancel(){
@@ -98,15 +108,20 @@ public:
     }
 private:
     on_mk_timer _cb = nullptr;
-    void *_user_data = nullptr;
+    std::shared_ptr<void> _user_data;
     recursive_mutex _mxt;
     EventPoller::DelayTask::Ptr _task;
 };
 
-API_EXPORT mk_timer API_CALL mk_timer_create(mk_thread ctx,uint64_t delay_ms,on_mk_timer cb, void *user_data){
+API_EXPORT mk_timer API_CALL mk_timer_create(mk_thread ctx, uint64_t delay_ms, on_mk_timer cb, void *user_data) {
+    return mk_timer_create2(ctx, delay_ms, cb, user_data, nullptr);
+}
+
+API_EXPORT mk_timer API_CALL mk_timer_create2(mk_thread ctx, uint64_t delay_ms, on_mk_timer cb, void *user_data, on_user_data_free user_data_free){
     assert(ctx && cb);
     EventPoller *poller = (EventPoller *)ctx;
-    TimerForC::Ptr *ret = new TimerForC::Ptr(new TimerForC(cb, user_data));
+    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;
 }

api/source/mk_track.cpp

@@ -114,9 +114,14 @@ API_EXPORT int API_CALL mk_track_bit_rate(mk_track track) {
 }
 
 API_EXPORT void *API_CALL mk_track_add_delegate(mk_track track, on_mk_frame_out cb, void *user_data) {
+    return mk_track_add_delegate2(track, cb, user_data, nullptr);
+}
+
+API_EXPORT void *API_CALL mk_track_add_delegate2(mk_track track, on_mk_frame_out cb, void *user_data, on_user_data_free user_data_free){
     assert(track && cb);
-    return (*((Track::Ptr *) track))->addDelegate([cb, user_data](const Frame::Ptr &frame) {
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
-        cb(user_data, (mk_frame) &frame);
+    return (*((Track::Ptr *) track))->addDelegate([cb, ptr](const Frame::Ptr &frame) {
+        cb(ptr.get(), (mk_frame) &frame);
         return true;
     });
 }

api/source/mk_transcode.cpp

@@ -57,9 +57,14 @@ API_EXPORT void API_CALL mk_decoder_set_max_async_frame_size(mk_decoder ctx, siz
 }
 
 API_EXPORT void API_CALL mk_decoder_set_cb(mk_decoder ctx, on_mk_decode cb, void *user_data) {
+    mk_decoder_set_cb2(ctx, cb, user_data, nullptr);
+}
+
+API_EXPORT void API_CALL mk_decoder_set_cb2(mk_decoder ctx, on_mk_decode cb, void *user_data, on_user_data_free user_data_free){
     assert(ctx && cb);
-    ((FFmpegDecoder *) ctx)->setOnDecode([cb, user_data](const FFmpegFrame::Ptr &pix_frame) {
+    std::shared_ptr<void> ptr(user_data, user_data_free ? user_data_free : [](void *) {});
-        cb(user_data, (mk_frame_pix) &pix_frame);
+    ((FFmpegDecoder *) ctx)->setOnDecode([cb, ptr](const FFmpegFrame::Ptr &pix_frame) {
+        cb(ptr.get(), (mk_frame_pix) &pix_frame);
     });
 }