Demuxer/Player: 修改解复用与播放器底层逻辑，确保触发播放成功回调时不丢帧

src/Player/MediaPlayer.cpp

@@ -20,9 +20,6 @@ MediaPlayer::MediaPlayer(const EventPoller::Ptr &poller) {
     _poller = poller ? poller : EventPollerPool::Instance().getPoller();
 }
 
-MediaPlayer::~MediaPlayer() {
-}
-
 static void setOnCreateSocket_l(const std::shared_ptr<PlayerBase> &delegate, const Socket::onCreateSocket &cb){
     auto helper = dynamic_pointer_cast<SocketHelper>(delegate);
     if (helper) {
@@ -41,10 +38,10 @@ void MediaPlayer::play(const string &url) {
     _delegate = PlayerBase::createPlayer(_poller, url);
     assert(_delegate);
     setOnCreateSocket_l(_delegate, _on_create_socket);
-    _delegate->setOnShutdown(_shutdownCB);
-    _delegate->setOnPlayResult(_playResultCB);
-    _delegate->setOnResume(_resumeCB);
-    _delegate->setMediaSource(_pMediaSrc);
+    _delegate->setOnShutdown(_on_shutdown);
+    _delegate->setOnPlayResult(_on_play_result);
+    _delegate->setOnResume(_on_resume);
+    _delegate->setMediaSource(_media_src);
     _delegate->mINI::operator=(*this);
     _delegate->play(url);
 }
@@ -58,23 +55,4 @@ void MediaPlayer::setOnCreateSocket(Socket::onCreateSocket cb){
     _on_create_socket = std::move(cb);
 }
 
-void MediaPlayer::pause(bool pause) {
-    if (_delegate) {
-        _delegate->pause(pause);
-    }
-}
-
-void MediaPlayer::speed(float speed) {
-    if (_delegate) {
-        _delegate->speed(speed);
-    }
-}
-
-void MediaPlayer::teardown() {
-    if (_delegate) {
-        _delegate->teardown();
-    }
-}
-
-
 } /* namespace mediakit */