86 lines
3.0 KiB
C++
86 lines
3.0 KiB
C++
/*!
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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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//nal_prefix.h - definitions for NAL Unit Header(/Ext) and PrefixNALUnit
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#ifndef WELS_NAL_UNIT_PREFIX_H__
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#define WELS_NAL_UNIT_PREFIX_H__
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#include "typedefs.h"
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#include "wels_common_basis.h"
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#include "slice.h"
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namespace WelsDec {
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///////////////////////////////////NAL Unit prefix/headers///////////////////////////////////
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/* NAL Unix Header in AVC, refer to Page 56 in JVT X201wcm */
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typedef struct TagNalUnitHeader {
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uint8_t uiForbiddenZeroBit;
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uint8_t uiNalRefIdc;
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ENalUnitType eNalUnitType;
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uint8_t uiReservedOneByte; // only padding usage
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} SNalUnitHeader, *PNalUnitHeader;
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/* NAL Unit Header in scalable extension syntax, refer to Page 390 in JVT X201wcm */
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typedef struct TagNalUnitHeaderExt {
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SNalUnitHeader sNalUnitHeader;
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// uint8_t reserved_one_bit;
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bool_t bIdrFlag;
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uint8_t uiPriorityId;
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int8_t iNoInterLayerPredFlag; // change as int8_t to support 3 values probably in encoder
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uint8_t uiDependencyId;
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uint8_t uiQualityId;
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uint8_t uiTemporalId;
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bool_t bUseRefBasePicFlag;
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bool_t bDiscardableFlag;
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bool_t bOutputFlag;
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uint8_t uiReservedThree2Bits;
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// Derived variable(s)
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uint8_t uiLayerDqId;
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bool_t bNalExtFlag;
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} SNalUnitHeaderExt, *PNalUnitHeaderExt;
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/* Prefix NAL Unix syntax, refer to Page 392 in JVT X201wcm */
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typedef struct TagPrefixNalUnit {
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SRefBasePicMarking sRefPicBaseMarking;
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bool_t bStoreRefBasePicFlag;
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bool_t bPrefixNalUnitAdditionalExtFlag;
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bool_t bPrefixNalUnitExtFlag;
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} SPrefixNalUnit, *PPrefixNalUnit;
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} // namespace WelsDec
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#endif//WELS_NAL_UNIT_PREFIX_H__
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