修复播放器析构时调用虚函数的bug

src/Player/MediaPlayer.cpp

@@ -36,7 +36,6 @@ MediaPlayer::MediaPlayer() {
 }
 
 MediaPlayer::~MediaPlayer() {
-	teardown();
 }
 void MediaPlayer::play(const char* strUrl) {
 	string strPrefix = FindField(strUrl, NULL, "://");

src/Player/PlayerBase.cpp

@@ -41,14 +41,20 @@ const char PlayerBase::kRtspPwdIsMD5[] = "rtsp_pwd_md5";
 
 
 PlayerBase::Ptr PlayerBase::createPlayer(const char* strUrl) {
+	static auto releasePlayer = [](PlayerBase *ptr){
+		onceToken token(nullptr,[&](){
+			delete  ptr;
+		});
+		ptr->teardown();
+	};
 	string prefix = FindField(strUrl, NULL, "://");
 	if (strcasecmp("rtsp",prefix.data()) == 0) {
-		return PlayerBase::Ptr(new RtspPlayerImp());
+		return PlayerBase::Ptr(new RtspPlayerImp(),releasePlayer);
 	}
 	if (strcasecmp("rtmp",prefix.data()) == 0) {
-		return PlayerBase::Ptr(new RtmpPlayerImp());
+		return PlayerBase::Ptr(new RtmpPlayerImp(),releasePlayer);
 	}
-	return PlayerBase::Ptr(new RtspPlayerImp());
+	return PlayerBase::Ptr(new RtspPlayerImp(),releasePlayer);
 }
 
 ///////////////////////////Demuxer//////////////////////////////

src/Rtmp/RtmpPlayer.cpp

@@ -46,7 +46,6 @@ RtmpPlayer::RtmpPlayer() {
 }
 
 RtmpPlayer::~RtmpPlayer() {
-	teardown();
 	DebugL << endl;
 }
 void RtmpPlayer::teardown() {

src/Rtmp/RtmpPlayerImp.h

@@ -45,7 +45,6 @@ public:
     RtmpPlayerImp(){};
     virtual ~RtmpPlayerImp(){
         DebugL<<endl;
-        teardown();
     };
     float getProgress() const override{
         if(getDuration() > 0){

src/Rtsp/RtspPlayer.cpp

@@ -55,7 +55,6 @@ RtspPlayer::RtspPlayer(void){
 	_pktPool.setSize(64);
 }
 RtspPlayer::~RtspPlayer(void) {
-    RtspPlayer::teardown();
     DebugL<<endl;
 }
 void RtspPlayer::teardown(){

src/Rtsp/RtspPlayerImp.h

@@ -47,7 +47,6 @@ public:
 	RtspPlayerImp(){};
 	virtual ~RtspPlayerImp(){
         DebugL<<endl;
-        teardown();
     };
     float getProgress() const override{
         if(getDuration() > 0){