ref: 82b875c388d2f33036d2e32ed9a10643f21d9b8d
dir: /codec/processing/src/common/util.h/
/*!
* \copy
* Copyright (c) 2011-2013, Cisco Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* \file : util.h
*
* \brief : utils for wels video processor class
*
* \date : 2011/01/04
*
* \description :
*
*************************************************************************************
*/
#ifndef WELSVP_UTIL_H
#define WELSVP_UTIL_H
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <assert.h>
#include "typedef.h"
#include "memory.h"
#include "IWelsVP.h"
WELSVP_NAMESPACE_BEGIN
#define MAX_WIDTH (4096)
#define MAX_HEIGHT (2304)//MAX_FS_LEVEL51 (36864); MAX_FS_LEVEL51*256/4096 = 2304
#define MB_WIDTH_LUMA (16)
#define PESN (1e-6) // desired float precision
#define MB_TYPE_INTRA4x4 0x00000001
#define MB_TYPE_INTRA16x16 0x00000002
#define MB_TYPE_INTRA_PCM 0x00000004
#define MB_TYPE_INTRA (MB_TYPE_INTRA4x4 | MB_TYPE_INTRA16x16 | MB_TYPE_INTRA_PCM)
#define IS_INTRA(type) ((type)&MB_TYPE_INTRA)
#define WELS_MAX(x, y) ((x) > (y) ? (x) : (y))
#define WELS_MIN(x, y) ((x) < (y) ? (x) : (y))
#define WELS_SIGN(a) ((int32_t)(a) >> 31)
#define WELS_ABS(a) ((WELS_SIGN(a) ^ (int32_t)(a)) - WELS_SIGN(a))
#define WELS_CLAMP(x, minv, maxv) WELS_MIN(WELS_MAX(x, minv), maxv)
#define ALIGNBYTES (16) /* Worst case is requiring alignment to an 16 byte boundary */
#define WELS_ALIGN(iInput) ((iInput+(ALIGNMENT-1)) & ~(ALIGNMENT-1))
#define WELS_ALIGN2(iInput) ((iInput+1) & ~1)
#define WELS_ALIGN4(iInput) ((iInput+3) & ~3)
#define WELS_ALIGN8(iInput) ((iInput+7) & ~7)
#define WelsCastFromPointer(p) (reinterpret_cast<intptr_t>(p))
#define WelsStaticCast(type, p) (static_cast<type>(p))
#define WelsDynamicCast(type, p) (dynamic_cast<type>(p))
#define GET_METHOD(x) ((x) & 0xff) // mask method as the lowest 8bits
#define GET_SPECIAL(x) (((x) >> 8) & 0xff) // mask special flag as 8bits
inline EMethods WelsVpGetValidMethod (int32_t a) {
int32_t iMethod = GET_METHOD (a);
return WelsStaticCast (EMethods, WELS_CLAMP (iMethod, METHOD_NULL + 1, METHOD_MASK - 1));
}
#define _SafeFree(p) if (p) { WelsFree(p); (p) = NULL; }
#define _SafeDelete(p) if (p) { delete (p); (p) = NULL; }
WELSVP_NAMESPACE_END
#endif