Added empty gstreamer video implementation

GstreamerHelper/GstreamerVideo.h

@@ -0,0 +1,32 @@
+#pragma once
+#include <string>
+#include <map>
+#include <queue>
+#include "gst/gst.h"
+#define DllExport extern "C" __declspec(dllexport)
+
+using namespace std;
+
+	typedef void (__stdcall * LogCallback)(const char* text);
+	static LogCallback Log;
+
+	DllExport void SetVideoLogCallback(LogCallback Callback);
+
+    DllExport bool InitVideo();
+    DllExport void CloseAllVideos();
+
+    DllExport int LoadVideo(const wchar_t* Media);
+    DllExport bool CloseVideo(int StreamID);
+    DllExport int GetVideoNumStreams();
+
+    DllExport float GetVideoLength(int StreamID);
+	DllExport UINT8* GetFrame(int StreamID, float Time, float &VideoTime);
+    DllExport bool Skip(int StreamID, float Start, float Gap);
+    DllExport void SetVideoLoop(int StreamID, bool Loop);
+    DllExport void PauseVideo(int StreamID);
+	DllExport void ResumeVideo(int StreamID);
+
+    DllExport bool Finished(int StreamID);
+
+	void LogVideoError(const char* msg);
+