120 lines
4.1 KiB
C
120 lines
4.1 KiB
C
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/*------------------------------------------------------------------------------
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-- --
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-- This software is confidential and proprietary and may be used --
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-- only as expressly authorized by a licensing agreement from --
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-- --
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-- Hantro Products Oy. --
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-- --
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-- (C) COPYRIGHT 2006 HANTRO PRODUCTS OY --
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-- ALL RIGHTS RESERVED --
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-- --
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-- The entire notice above must be reproduced --
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-- on all copies and should not be removed. --
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-- --
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--------------------------------------------------------------------------------
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--
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-- Abstract : Utility macros and functions
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--
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--------------------------------------------------------------------------------
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--
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-- Version control information, please leave untouched.
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--
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-- $RCSfile: h264hwd_util.h,v $
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-- $Date: 2008/09/03 05:56:16 $
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-- $Revision: 1.2 $
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--
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------------------------------------------------------------------------------*/
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#ifndef H264BSDDEC_UTIL_H
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#define H264BSDDEC_UTIL_H
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/*------------------------------------------------------------------------------
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1. Include headers
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------------------------------------------------------------------------------*/
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#include "basetype.h"
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#include "dwl.h"
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#include "h264hwd_stream.h"
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#include "h264hwd_debug.h"
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/*------------------------------------------------------------------------------
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2. Module defines
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------------------------------------------------------------------------------*/
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#define HANTRO_OK 0
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#define HANTRO_NOK 1
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#define HANTRO_FALSE (0U)
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#define HANTRO_TRUE (1U)
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#define MEMORY_ALLOCATION_ERROR 0xFFFF
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#define PARAM_SET_ERROR 0xFFF0
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/* value to be returned by GetBits if stream buffer is empty */
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#define END_OF_STREAM 0xFFFFFFFFU
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#define EMPTY_RESIDUAL_INDICATOR 0xFFFFFF
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/* macro to mark a residual block empty, i.e. contain zero coefficients */
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#define MARK_RESIDUAL_EMPTY(residual) ((residual)[0] = EMPTY_RESIDUAL_INDICATOR)
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/* macro to check if residual block is empty */
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#define IS_RESIDUAL_EMPTY(residual) ((residual)[0] == EMPTY_RESIDUAL_INDICATOR)
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/* macro to get smaller of two values */
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#define MIN(a, b) (((a) < (b)) ? (a) : (b))
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/* macro to get greater of two values */
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#define MAX(a, b) (((a) > (b)) ? (a) : (b))
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/* macro to get absolute value */
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#define ABS(a) (((a) < 0) ? -(a) : (a))
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/* macro to clip a value z, so that x <= z =< y */
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#define CLIP3(x,y,z) (((z) < (x)) ? (x) : (((z) > (y)) ? (y) : (z)))
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/* macro to clip a value z, so that 0 <= z =< 255 */
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#define CLIP1(z) (((z) < 0) ? 0 : (((z) > 255) ? 255 : (z)))
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/* macro to allocate memory */
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#define ALLOCATE(ptr, count, type) \
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{ \
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ptr = DWLmalloc((count) * sizeof(type)); \
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}
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/* macro to free allocated memory */
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#define FREE(ptr) \
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{ \
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if(ptr != NULL) {DWLfree(ptr); ptr = NULL;}\
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}
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extern const u32 h264bsdQpC[52];
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/*------------------------------------------------------------------------------
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3. Data types
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------------------------------------------------------------------------------*/
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typedef enum
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{
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TOPFIELD = 0,
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BOTFIELD = 1,
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FRAME = 2
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} picStruct_e;
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/*------------------------------------------------------------------------------
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4. Function prototypes
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------------------------------------------------------------------------------*/
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u32 h264bsdCountLeadingZeros(u32 value, u32 length);
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u32 h264bsdRbspTrailingBits(strmData_t * strmData);
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u32 h264bsdMoreRbspData(strmData_t * strmData);
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u32 h264bsdNextMbAddress(u32 * pSliceGroupMap, u32 picSizeInMbs,
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u32 currMbAddr);
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u32 h264CheckCabacZeroWords( strmData_t *strmData );
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#endif /* #ifdef H264BSDDEC_UTIL_H */
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