2013-12-09 13:51:09 +01:00
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/*!
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* \copy
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* Copyright (c) 2013, Cisco Systems
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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//nalu.h: NAL Unit definition
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#ifndef WELS_NAL_UNIT_H__
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#define WELS_NAL_UNIT_H__
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#include "typedefs.h"
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#include "wels_common_basis.h"
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#include "nal_prefix.h"
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#include "bit_stream.h"
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namespace WelsDec {
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///////////////////////////////////NAL UNIT level///////////////////////////////////
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/* NAL Unit Structure */
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2013-12-12 23:21:12 +01:00
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typedef struct TagNalUnit {
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SNalUnitHeaderExt sNalHeaderExt;
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union {
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struct SVclNal {
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SSliceHeaderExt sSliceHeaderExt;
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SBitStringAux sSliceBitsRead;
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uint8_t* pNalPos; // save the address of slice nal for GPU function
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int32_t iNalLength; // save the nal length for GPU function
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bool_t bSliceHeaderExtFlag;
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} sVclNal;
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SPrefixNalUnit sPrefixNal;
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} sNalData;
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} SNalUnit, *PNalUnit;
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2013-12-09 13:51:09 +01:00
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///////////////////////////////////ACCESS Unit level///////////////////////////////////
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/* Access Unit structure */
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2013-12-12 23:21:12 +01:00
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typedef struct TagAccessUnits {
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PNalUnit* pNalUnitsList; // list of NAL Units pointer in this AU
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uint32_t uiAvailUnitsNum; // Number of NAL Units available in each AU list based current bitstream,
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uint32_t uiActualUnitsNum; // actual number of NAL units belong to current au
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// While available number exceeds count size below, need realloc extra NAL Units for list space.
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uint32_t uiCountUnitsNum; // Count size number of malloced NAL Units in each AU list
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uint32_t uiStartPos;
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uint32_t uiEndPos;
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bool_t bCompletedAuFlag; // Indicate whether it is a completed AU
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} SAccessUnit, *PAccessUnit;
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2013-12-09 13:51:09 +01:00
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} // namespace WelsDec
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#endif//WELS_NAL_UNIT_H__
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