Initial community commit

Src/Plugins/Input/in_flv/FLVUtil.h

@@ -0,0 +1,90 @@
+#ifndef NULLSOFT_FLVUTIL_H
+#define NULLSOFT_FLVUTIL_H
+
+#include <memory.h>
+#include <bfc/platform/types.h>
+namespace FLV
+{
+	// reads 32 bits from data and converts from big endian 
+inline uint32_t Read32(uint8_t *data)
+{
+	uint32_t returnVal;
+#ifdef __BIG_ENDIAN__
+	returnVal = *(uint32_t  *)(&data[0]);
+#else 
+	// need to swap endianness	
+	uint8_t *swap = (uint8_t  *)&returnVal;
+	swap[0]=data[3];
+	swap[1]=data[2];
+	swap[2]=data[1];
+	swap[3]=data[0];
+#endif
+	return returnVal;
+
+}
+// reads 24 bits from data, converts from big endian, and returns as a 32bit int
+inline uint32_t Read24(uint8_t *data)
+{
+	uint32_t returnVal=0; 
+	uint8_t *swap = (uint8_t  *)&returnVal;
+#ifdef __BIG_ENDIAN__
+	swap[1]=data[0];
+	swap[2]=data[1];
+	swap[3]=data[2];
+	returnVal = *(uint32_t  *)(&data[0]);
+#else 
+	// need to swap endianness	
+	swap[0]=data[2];
+	swap[1]=data[1];
+	swap[2]=data[0];
+#endif
+	return returnVal;
+
+}
+
+// reads 16 bits from data and converts from big endian
+inline uint16_t Read16(uint8_t *data)
+{
+	uint16_t returnVal;
+#ifdef __BIG_ENDIAN__
+	returnVal = *(uint16_t  *)(&data[0]);
+#else 
+	// need to swap endianness	
+	uint8_t *swap = (uint8_t  *)&returnVal;
+	swap[0]=data[1];
+	swap[1]=data[0];
+#endif
+	return returnVal;
+}
+
+// reads 16 bits from data and converts from big endian
+inline uint8_t Read8(uint8_t *data)
+{
+	uint8_t returnVal;
+
+	returnVal = *(uint8_t  *)(&data[0]);
+	return returnVal;
+}
+
+// reads a double from data
+inline double ReadDouble(uint8_t *data)
+{
+	double returnVal;
+#ifdef __BIG_ENDIAN__
+	memcpy(&returnVal, data, 8);
+	#else 
+	uint8_t *swap = (uint8_t  *)&returnVal;
+	swap[0]=data[7];
+	swap[1]=data[6];
+	swap[2]=data[5];
+	swap[3]=data[4];
+	swap[4]=data[3];
+	swap[5]=data[2];
+	swap[6]=data[1];
+	swap[7]=data[0];
+	#endif
+	return returnVal;
+}
+
+}
+#endif