public static IntPtr StartTranscoder(int audioOnly, LayoutType layoutType, int resoFormat, int bitRate, int frameRate, int keyFrameInterval, string inputFileName, string outputFileName, ref int errNo) { return(WrapperInterface.startTranscoder(audioOnly, (int)layoutType, resoFormat, bitRate, frameRate, keyFrameInterval, inputFileName, outputFileName, ref errNo)); }