首次提交，可运行。但有两问题：1.画质不佳, 2.无音频

FrameRecviver.h

@@ -0,0 +1,54 @@
+#pragma once
+
+#include"DataType.h"
+#include"FrameConvert.h"
+
+extern "C"
+{
+    #include<libavcodec/avcodec.h>
+}
+
+class FrameRecviver
+{
+protected:
+
+    uint width=0;
+    uint height=0;
+
+    AVRational frame_rate;
+
+public:
+
+    virtual ~FrameRecviver()=default;
+
+    virtual void SetFrameRate(const AVRational &fr){frame_rate=fr;}
+    virtual bool OnFrame(const AVFrame *frame)=0;
+
+public:
+
+    const uint GetWidth()const{return width;}
+    const uint GetHeight()const{return height;}
+};//
+
+class RGBAFrameRecviver:public FrameRecviver
+{
+private:
+
+    AVPixelFormat src_format=AV_PIX_FMT_NONE;
+
+    FrameConvert *convert=nullptr;
+    
+private:
+
+    bool OnFrame(const AVFrame *frame);
+
+public:
+
+    virtual ~RGBAFrameRecviver()
+    {
+        if(convert)
+            delete convert;
+    }
+
+    virtual bool OnFrameRGBA(const uint8 *)=0;
+};//class RGBAFrameRecviver:public FrameRecviver