ref: 09025dc8ef3e20403ad2a925287e6b418851f778
dir: /codec/decoder/core/inc/nalu.h/
/*! * \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 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 bCompletedAuFlag; // Indicate whether it is a completed AU } SAccessUnit, *PAccessUnit; } // namespace WelsDec #endif//WELS_NAL_UNIT_H__