Initial community commit

Src/nsmkv/ebml_float.cpp

@@ -0,0 +1,52 @@
+#include "ebml_float.h"
+
+double float_read_ptr_len(uint64_t len, const uint8_t *ptr)
+{
+	
+// TODO: big endian support
+	if (len == 4)
+	{
+		float val;
+		uint8_t *dest = (uint8_t *)&val;
+		dest[3]=ptr[0];
+		dest[2]=ptr[1];
+		dest[1]=ptr[2];
+		dest[0]=ptr[3];
+		return val;
+	}
+	else if (len == 8)
+	{
+		double val;
+		uint8_t *dest = (uint8_t *)&val;
+		dest[7]=ptr[0];
+		dest[6]=ptr[1];
+		dest[5]=ptr[2];
+		dest[4]=ptr[3];
+		dest[3]=ptr[4];
+		dest[2]=ptr[5];
+		dest[1]=ptr[6];
+		dest[0]=ptr[7];
+		return val;
+	}
+	else if (len == 10)
+	{
+		long double val;
+		memset(&val, 0, sizeof(val));
+		uint8_t *dest = (uint8_t *)&val;
+		dest[9]=ptr[0];
+		dest[8]=ptr[1];
+		dest[7]=ptr[2];
+		dest[6]=ptr[3];
+		dest[5]=ptr[4];
+		dest[4]=ptr[5];
+		dest[3]=ptr[6];
+		dest[2]=ptr[7];
+		dest[1]=ptr[8];
+		dest[0]=ptr[9];
+		return val;
+	}
+	else
+		return 0;
+
+	
+}