CARPLAY版本整理

MXC_A27-PCB4.5-270T/lib/hx170dec/include/rv_utils.h

@@ -0,0 +1,159 @@
+/*------------------------------------------------------------------------------
+--                                                                            --
+--       This software is confidential and proprietary and may be used        --
+--        only as expressly authorized by a licensing agreement from          --
+--                                                                            --
+--                            Hantro Products Oy.                             --
+--                                                                            --
+--                   (C) COPYRIGHT 2006 HANTRO PRODUCTS OY                    --
+--                            ALL RIGHTS RESERVED                             --
+--                                                                            --
+--                 The entire notice above must be reproduced                 --
+--                  on all copies and should not be removed.                  --
+--                                                                            --
+--------------------------------------------------------------------------------
+--
+--  Abstract : Header file for stream decoding utilities
+--
+--------------------------------------------------------------------------------
+--
+--  Version control information, please leave untouched.
+--
+--  $RCSfile: rv_utils.h,v $
+--  $Date: 2009/03/11 14:00:12 $
+--  $Revision: 1.1 $
+--
+------------------------------------------------------------------------------*/
+
+#ifndef RV_UTILS_H
+#define RV_UTILS_H
+
+/*------------------------------------------------------------------------------
+    1. Include headers
+------------------------------------------------------------------------------*/
+
+#include "rv_container.h"
+
+#ifdef _ASSERT_USED
+#include <assert.h>
+#endif
+
+#ifdef _UTEST
+#include <stdio.h>
+#endif
+
+/*------------------------------------------------------------------------------
+    2. Module defines
+------------------------------------------------------------------------------*/
+
+/* constant definitions */
+#ifndef OK
+#define OK 0
+#endif
+
+#ifndef NOK
+#define NOK 1
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+/* decoder states */
+enum
+{
+    STATE_OK,
+    STATE_NOT_READY,
+    STATE_SYNC_LOST
+};
+
+#define HANTRO_OK 0
+#define HANTRO_NOK 1
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+/* Error concealment */
+#define	FREEZED_PIC_RDY 1
+
+enum
+{
+    RV_I_PIC = 0,
+    RV_FI_PIC = 1,
+    RV_P_PIC = 2,
+    RV_B_PIC = 3
+};
+
+enum
+{
+    RV_SLICE
+};
+
+/* value to be returned by GetBits if stream buffer is empty */
+#define END_OF_STREAM 0xFFFFFFFFU
+
+/* macro for debug printing. Note that double parenthesis has to be used, i.e.
+ * DEBUG(("Debug printing %d\n",%d)) */
+#ifdef _UTEST
+#define DEBUG(args) printf args
+#else
+#define DEBUG(args)
+#endif
+
+/* macro for assertion, used only if compiler flag _ASSERT_USED is defined */
+#ifdef _ASSERT_USED
+#define ASSERT(expr) assert(expr)
+#else
+#define ASSERT(expr)
+#endif
+
+/* macro to check if stream ends */
+#define IS_END_OF_STREAM(pContainer) \
+    ( (pContainer)->StrmDesc.strmBuffReadBits == \
+      (8*(pContainer)->StrmDesc.strmBuffSize) )
+
+/* macro to saturate value to range [min,max]. Note that for unsigned value
+ * both min and max should be positive, otherwise result will be wrong due to
+ * arithmetic conversion. If min > max -> value will be equal to min. */
+#define SATURATE(min,value,max) \
+    if ((value) < (min)) (value) = (min); \
+    else if ((value) > (max)) (value) = (max);
+
+#define ABS(val) (((val) < 0) ? -(val) : (val))
+
+/*------------------------------------------------------------------------------
+    3. Data types
+------------------------------------------------------------------------------*/
+
+typedef struct
+{
+    u8 *pStrmBuffStart; /* pointer to start of stream buffer */
+    u8 *pStrmCurrPos;   /* current read address in stream buffer */
+    u32 bitPosInWord;   /* bit position in stream buffer byte */
+    u32 strmBuffSize;   /* size of stream buffer (bytes) */
+    u32 strmBuffReadBits;   /* number of bits read from stream buffer */
+} strmData_t;
+
+/*------------------------------------------------------------------------------
+    4. Function prototypes
+------------------------------------------------------------------------------*/
+
+u32 rv_GetBits(DecContainer *, u32 numBits);
+u32 rv_ShowBits(DecContainer *, u32 numBits);
+u32 rv_ShowBits32(DecContainer *);
+u32 rv_FlushBits(DecContainer *, u32 numBits);
+
+u32 rv_CheckStuffing(DecContainer *);
+
+u32 rv_NumBits(u32 value);
+
+#endif /* RV_UTILS_H */