initial checkin

MAC_SDK/Source/MACLib/Prepare.h

@@ -0,0 +1,38 @@
+#ifndef APE_PREPARE_H
+#define APE_PREPARE_H
+
+#define SPECIAL_FRAME_MONO_SILENCE              1
+#define SPECIAL_FRAME_LEFT_SILENCE              1
+#define SPECIAL_FRAME_RIGHT_SILENCE             2
+#define SPECIAL_FRAME_PSEUDO_STEREO             4
+
+/*****************************************************************************
+Manage the preparation stage of compression and decompression
+
+Tasks:
+
+1) convert data to 32-bit
+2) convert L,R to X,Y
+3) calculate the CRC
+4) do simple analysis
+5) check for the peak value
+*****************************************************************************/
+
+class IPredictorDecompress;
+
+class CPrepare
+{
+public:
+
+    int Prepare(const unsigned char * pRawData, int nBytes, const WAVEFORMATEX * pWaveFormatEx, int * pOutputX, int * pOutputY, unsigned int * pCRC, int * pSpecialCodes, int * pPeakLevel);
+    void Unprepare(int X, int Y, const WAVEFORMATEX * pWaveFormatEx, unsigned char * pOutput, unsigned int * pCRC);
+
+
+#ifdef BACKWARDS_COMPATIBILITY
+    int UnprepareOld(int * pInputX, int *pInputY, int nBlocks, const WAVEFORMATEX * pWaveFormatEx, unsigned char * pRawData, unsigned int * pCRC, int * pSpecialCodes, int nFileVersion);
+#endif
+
+};
+
+
+#endif // #ifndef APE_PREPARE_H