/*!
 * \copy
 *     Copyright (c)  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.
 *
 */

//nalu.h:	NAL Unit definition
#ifndef WELS_NAL_UNIT_H__
#define WELS_NAL_UNIT_H__

#include "typedefs.h"
#include "wels_common_basis.h"
#include "nal_prefix.h"
#include "bit_stream.h"

namespace WelsDec {

///////////////////////////////////NAL UNIT level///////////////////////////////////

/* NAL Unit Structure */
typedef struct TagNalUnit {
SNalUnitHeaderExt	sNalHeaderExt;

union {
  struct SVclNal {
    SSliceHeaderExt	sSliceHeaderExt;
    SBitStringAux	sSliceBitsRead;
    uint8_t*		 pNalPos;	  // save the address of slice nal for GPU function
    int32_t 		iNalLength;   // save the nal length for GPU function
    bool_t			bSliceHeaderExtFlag;
  } sVclNal;
  SPrefixNalUnit	sPrefixNal;
} sNalData;

} SNalUnit, *PNalUnit;

///////////////////////////////////ACCESS Unit level///////////////////////////////////

/* Access Unit structure */
typedef struct TagAccessUnits {
PNalUnit*		pNalUnitsList;	// list of NAL Units pointer in this AU
uint32_t		uiAvailUnitsNum;	// Number of NAL Units available in each AU list based current bitstream,
uint32_t		uiActualUnitsNum;	// actual number of NAL units belong to current au
// While available number exceeds count size below, need realloc extra NAL Units for list space.
uint32_t		uiCountUnitsNum;	// Count size number of malloced NAL Units in each AU list
uint32_t		uiStartPos;
uint32_t		uiEndPos;
bool_t			bCompletedAuFlag;	// Indicate whether it is a completed AU
} SAccessUnit, *PAccessUnit;

} // namespace WelsDec

#endif//WELS_NAL_UNIT_H__
