同步取消回调

api/include/mk_player.h

@@ -83,7 +83,7 @@ API_EXPORT void API_CALL mk_player_seekto(mk_player ctx, float progress);
 /**
  * 设置播放器开启播放结果回调函数
  * @param ctx 播放器指针
- * @param cb 回调函数指针,不得为null
+ * @param cb 回调函数指针,设置null立即取消回调
  * @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);
@@ -91,7 +91,7 @@ API_EXPORT void API_CALL mk_player_set_on_result(mk_player ctx, on_mk_play_event
 /**
  * 设置播放被异常中断的回调
  * @param ctx 播放器指针
- * @param cb 回调函数指针,不得为null
+ * @param cb 回调函数指针,设置null立即取消回调
  * @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);
@@ -100,7 +100,7 @@ API_EXPORT void API_CALL mk_player_set_on_shutdown(mk_player ctx, on_mk_play_eve
  * 设置音视频数据回调函数
  * 该接口在播放成功事件触发后才有效
  * @param ctx 播放器指针
- * @param cb 回调函数指针,不得为null
+ * @param cb 回调函数指针,设置null立即取消回调
  * @param user_data 用户数据指针
  */
 API_EXPORT void API_CALL mk_player_set_on_data(mk_player ctx, on_mk_play_data cb, void *user_data);

api/source/mk_player.cpp

@@ -15,19 +15,123 @@ using namespace std;
 using namespace toolkit;
 using namespace mediakit;
 
+class MediaPlayerForC : public std::enable_shared_from_this<MediaPlayerForC>{
+public:
+    typedef std::shared_ptr<MediaPlayerForC> Ptr;
+
+    MediaPlayerForC(){
+        _player = std::make_shared<MediaPlayer>();
+    }
+    ~MediaPlayerForC(){}
+
+    MediaPlayer *operator->(){
+        return _player.get();
+    }
+
+    void setup(){
+        weak_ptr<MediaPlayerForC> weak_self = shared_from_this();
+        _player->setOnPlayResult([weak_self](const SockException &ex){
+            auto strong_self = weak_self.lock();
+            if(strong_self){
+                strong_self->onEvent(false,ex);
+            }
+        });
+
+        _player->setOnShutdown([weak_self](const SockException &ex){
+            auto strong_self = weak_self.lock();
+            if(strong_self){
+                strong_self->onEvent(true,ex);
+            }
+        });
+    }
+
+    void onEvent(bool is_shutdown, const SockException &ex){
+        lock_guard<recursive_mutex> lck(_mtx);
+        if(is_shutdown){
+            //播放中断
+            if(_on_shutdown){
+                _on_shutdown(_on_shutdown_data,ex.getErrCode(),ex.what());
+            }
+            return;
+        }
+
+        //播放结果
+        if(_on_play){
+            _on_play(_on_play_data,ex.getErrCode(),ex.what());
+        }
+
+        if(ex){
+            //播放失败
+            return;
+        }
+
+        //播放成功,添加事件回调
+        weak_ptr<MediaPlayerForC> weak_self = shared_from_this();
+        auto delegate = std::make_shared<FrameWriterInterfaceHelper>([weak_self](const Frame::Ptr &frame) {
+            auto strong_self = weak_self.lock();
+            if (strong_self) {
+                strong_self->onData(frame);
+            }
+        });
+        for (auto &track : _player->getTracks()) {
+            track->addDelegate(delegate);
+        }
+    }
+
+    void onData(const Frame::Ptr &frame){
+        lock_guard<recursive_mutex> lck(_mtx);
+        if(_on_data){
+            _on_data(_on_data_data,frame->getTrackType(),frame->getCodecId(),frame->data(),frame->size(),frame->dts(),frame->pts());
+        }
+    }
+
+    void setOnEvent(on_mk_play_event cb, void *user_data, int type) {
+        lock_guard<recursive_mutex> lck(_mtx);
+        if(type == 0){
+            _on_play_data = user_data;
+            _on_play = cb;
+        }else{
+            _on_shutdown_data = user_data;
+            _on_shutdown = cb;
+        }
+    }
+
+    void setOnData(on_mk_play_data cb, void *user_data) {
+        lock_guard<recursive_mutex> lck(_mtx);
+        _on_data_data = user_data;
+        _on_data = cb;
+    }
+
+    MediaPlayer::Ptr& getPlayer(){
+        return _player;
+    }
+private:
+    MediaPlayer::Ptr _player;
+    recursive_mutex _mtx;
+    on_mk_play_event _on_play = nullptr;
+    on_mk_play_data _on_data = nullptr;
+    on_mk_play_event _on_shutdown = nullptr;
+
+    void *_on_play_data = nullptr;
+    void *_on_shutdown_data = nullptr;
+    void *_on_data_data = nullptr;
+};
+
 API_EXPORT mk_player API_CALL mk_player_create() {
-    MediaPlayer::Ptr *obj = new MediaPlayer::Ptr(new MediaPlayer());
+    MediaPlayerForC::Ptr *obj = new MediaPlayerForC::Ptr(new MediaPlayerForC());
+    (*obj)->setup();
     return obj;
 }
 API_EXPORT void API_CALL mk_player_release(mk_player ctx) {
     assert(ctx);
-    MediaPlayer::Ptr *obj = (MediaPlayer::Ptr *)ctx;
+    MediaPlayerForC::Ptr *obj = (MediaPlayerForC::Ptr *)ctx;
     delete obj;
 }
 
 API_EXPORT void API_CALL mk_player_set_option(mk_player ctx,const char* key,const char *val){
     assert(ctx && key && val);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto player = obj.getPlayer();
     string key_str(key), val_str(val);
     player->getPoller()->async([key_str,val_str,player](){
         //切换线程后再操作
@@ -36,7 +140,8 @@ API_EXPORT void API_CALL mk_player_set_option(mk_player ctx,const char* key,cons
 }
 API_EXPORT void API_CALL mk_player_play(mk_player ctx, const char *url) {
     assert(ctx && url);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto player = obj.getPlayer();
     string url_str(url);
     player->getPoller()->async([url_str,player](){
         //切换线程后再操作
@@ -46,7 +151,8 @@ API_EXPORT void API_CALL mk_player_play(mk_player ctx, const char *url) {
 
 API_EXPORT void API_CALL mk_player_pause(mk_player ctx, int pause) {
     assert(ctx);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto player = obj.getPlayer();
     player->getPoller()->async([pause,player](){
         //切换线程后再操作
         player->pause(pause);
@@ -55,7 +161,8 @@ API_EXPORT void API_CALL mk_player_pause(mk_player ctx, int pause) {
 
 API_EXPORT void API_CALL mk_player_seekto(mk_player ctx, float progress) {
     assert(ctx);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto player = obj.getPlayer();
     player->getPoller()->async([progress,player](){
         //切换线程后再操作
         player->seekTo(progress);
@@ -64,19 +171,8 @@ API_EXPORT void API_CALL mk_player_seekto(mk_player ctx, float progress) {
 
 static void mk_player_set_on_event(mk_player ctx, on_mk_play_event cb, void *user_data, int type) {
     assert(ctx && cb);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
-    player->getPoller()->async([cb,user_data,type,player](){
-        //切换线程后再操作
-        if(type == 0){
-            player->setOnPlayResult([cb,user_data](const SockException &ex){
-                cb(user_data,ex.getErrCode(),ex.what());
-            });
-        }else{
-            player->setOnShutdown([cb,user_data](const SockException &ex){
-                cb(user_data,ex.getErrCode(),ex.what());
-            });
-        }
-    });
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    obj.setOnEvent(cb,user_data, type);
 }
 
 API_EXPORT void API_CALL mk_player_set_on_result(mk_player ctx, on_mk_play_event cb, void *user_data) {
@@ -89,88 +185,80 @@ API_EXPORT void API_CALL mk_player_set_on_shutdown(mk_player ctx, on_mk_play_eve
 
 API_EXPORT void API_CALL mk_player_set_on_data(mk_player ctx, on_mk_play_data cb, void *user_data) {
     assert(ctx && cb);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
-    player->getPoller()->async([player,cb,user_data](){
-        //切换线程后再操作
-        auto delegate = std::make_shared<FrameWriterInterfaceHelper>([cb,user_data](const Frame::Ptr &frame){
-            cb(user_data,frame->getTrackType(),frame->getCodecId(),frame->data(),frame->size(),frame->dts(),frame->pts());
-        });
-        for(auto &track : player->getTracks()){
-            track->addDelegate(delegate);
-        }
-    });
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    obj.setOnData(cb,user_data);
 }
 
 API_EXPORT int API_CALL mk_player_video_codecId(mk_player ctx){
     assert(ctx);
-    MediaPlayer::Ptr& player = *((MediaPlayer::Ptr*)ctx);
-    auto track = dynamic_pointer_cast<VideoTrack>(player->getTrack(TrackVideo));
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto track = dynamic_pointer_cast<VideoTrack>(obj->getTrack(TrackVideo));
     return track ? track->getCodecId() : CodecInvalid;
 }
 
 API_EXPORT int API_CALL mk_player_video_width(mk_player ctx) {
     assert(ctx);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
-    auto track = dynamic_pointer_cast<VideoTrack>(player->getTrack(TrackVideo));
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto track = dynamic_pointer_cast<VideoTrack>(obj->getTrack(TrackVideo));
     return track ? track->getVideoWidth() : 0;
 }
 
 API_EXPORT int API_CALL mk_player_video_height(mk_player ctx) {
     assert(ctx);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
-    auto track = dynamic_pointer_cast<VideoTrack>(player->getTrack(TrackVideo));
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto track = dynamic_pointer_cast<VideoTrack>(obj->getTrack(TrackVideo));
     return track ? track->getVideoHeight() : 0;
 }
 
 API_EXPORT int API_CALL mk_player_video_fps(mk_player ctx) {
     assert(ctx);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
-    auto track = dynamic_pointer_cast<VideoTrack>(player->getTrack(TrackVideo));
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto track = dynamic_pointer_cast<VideoTrack>(obj->getTrack(TrackVideo));
     return track ? track->getVideoFps() : 0;
 }
 
 API_EXPORT int API_CALL mk_player_audio_codecId(mk_player ctx){
     assert(ctx);
-    MediaPlayer::Ptr& player = *((MediaPlayer::Ptr*)ctx);
-    auto track = dynamic_pointer_cast<AudioTrack>(player->getTrack(TrackAudio));
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto track = dynamic_pointer_cast<AudioTrack>(obj->getTrack(TrackAudio));
     return track ? track->getCodecId() : CodecInvalid;
 }
 
 API_EXPORT int API_CALL mk_player_audio_samplerate(mk_player ctx) {
     assert(ctx);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
-    auto track = dynamic_pointer_cast<AudioTrack>(player->getTrack(TrackAudio));
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto track = dynamic_pointer_cast<AudioTrack>(obj->getTrack(TrackAudio));
     return track ? track->getAudioSampleRate() : 0;
 }
 
 API_EXPORT int API_CALL mk_player_audio_bit(mk_player ctx) {
     assert(ctx);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
-    auto track = dynamic_pointer_cast<AudioTrack>(player->getTrack(TrackAudio));
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto track = dynamic_pointer_cast<AudioTrack>(obj->getTrack(TrackAudio));
     return track ? track->getAudioSampleBit() : 0;
 }
 
 API_EXPORT int API_CALL mk_player_audio_channel(mk_player ctx) {
     assert(ctx);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
-    auto track = dynamic_pointer_cast<AudioTrack>(player->getTrack(TrackAudio));
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    auto track = dynamic_pointer_cast<AudioTrack>(obj->getTrack(TrackAudio));
     return track ? track->getAudioChannel() : 0;
 }
 
 API_EXPORT float API_CALL mk_player_duration(mk_player ctx) {
     assert(ctx);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
-    return player->getDuration();
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    return obj->getDuration();
 }
 
 API_EXPORT float API_CALL mk_player_progress(mk_player ctx) {
     assert(ctx);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
-    return player->getProgress();
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    return obj->getProgress();
 }
 
 API_EXPORT float API_CALL mk_player_loss_rate(mk_player ctx, int track_type) {
     assert(ctx);
-    MediaPlayer::Ptr &player = *((MediaPlayer::Ptr *)ctx);
-    return player->getPacketLossRate((TrackType)track_type);
+    MediaPlayerForC &obj = **((MediaPlayerForC::Ptr *)ctx);
+    return obj->getPacketLossRate((TrackType)track_type);
 }