openh264/codec/decoder/core/inc/fmo.h

/*!
 * \copy
 *     Copyright (c)  2009-2013, 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	fmo.h
 *
 * \brief	Flexible Macroblock Ordering implementation
 *
 * \date	2/4/2009 Created
 *
 *************************************************************************************
 */
#ifndef WELS_FLEXIBLE_MACROBLOCK_ORDERING_H__
#define WELS_FLEXIBLE_MACROBLOCK_ORDERING_H__

#include "typedefs.h"
#include "wels_const.h"
#include "parameter_sets.h"

namespace WelsDec {

#ifndef MB_XY_T
#define MB_XY_T	int16_t
#endif//MB_XY_T

/*!
 * \brief	Wels Flexible Macroblock Ordering (FMO)
 */
typedef struct TagFmo {
uint8_t*		pMbAllocMap;
int32_t		iCountMbNum;
int32_t		iSliceGroupCount;
int32_t		iSliceGroupType;
bool		bActiveFlag;
uint8_t		uiReserved[3];		// reserved padding bytes
} SFmo, *PFmo;


/*!
 * \brief	Initialize Wels Flexible Macroblock Ordering (FMO)
 *
 * \param	pFmo		Wels fmo to be initialized
 * \param	pPps		PPps
 * \param	kiMbWidth	mb width
 * \param	kiMbHeight	mb height
 *
 * \return	0 - successful; none 0 - failed;
 */
int32_t	InitFmo (PFmo pFmo, PPps pPps, const int32_t kiMbWidth, const int32_t kiMbHeight);

/*!
 * \brief	Uninitialize Wels Flexible Macroblock Ordering (FMO) list
 *
 * \param	pFmo		Wels base fmo ptr to be uninitialized
 * \param	kiCnt		count number of PPS per list
 * \param	kiAvail		count available number of PPS in list
 *
 * \return	NONE
 */
void UninitFmoList (PFmo pFmo, const int32_t kiCnt, const int32_t kiAvail);

/*!
 * \brief	update/insert FMO parameter unit
 *
 * \param	pFmo	FMO context
 * \param	pSps	PSps
 * \param	pPps	PPps
 * \param	pActiveFmoNum	int32_t* [in/out]
 *
 * \return	true - update/insert successfully; false - failed;
 */
bool FmoParamUpdate (PFmo pFmo, PSps pSps, PPps pPps, int32_t* pActiveFmoNum);

/*!
 * \brief	Get successive mb to be processed with given current mb_xy
 *
 * \param	pFmo			Wels fmo context
 * \param	iMbXy			current mb_xy
 *
 * \return	iNextMb - successful; -1 - failed;
 */
MB_XY_T FmoNextMb (PFmo pFmo, const MB_XY_T kiMbXy);

} // namespace WelsDec

#endif//WELS_FLEXIBLE_MACROBLOCK_ORDERING_H__