| 1 | /* The copyright in this software is being made available under the BSD |
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| 2 | * License, included below. This software may be subject to other third party |
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| 3 | * and contributor rights, including patent rights, and no such rights are |
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| 4 | * granted under this license. |
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| 5 | * |
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| 6 | * Copyright (c) 2010-2012, ITU/ISO/IEC |
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| 7 | * All rights reserved. |
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| 8 | * |
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| 9 | * Redistribution and use in source and binary forms, with or without |
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| 10 | * modification, are permitted provided that the following conditions are met: |
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| 11 | * |
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| 12 | * * Redistributions of source code must retain the above copyright notice, |
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| 13 | * this list of conditions and the following disclaimer. |
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| 14 | * * Redistributions in binary form must reproduce the above copyright notice, |
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| 15 | * this list of conditions and the following disclaimer in the documentation |
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| 16 | * and/or other materials provided with the distribution. |
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| 17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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| 18 | * be used to endorse or promote products derived from this software without |
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| 19 | * specific prior written permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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| 25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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| 31 | * THE POSSIBILITY OF SUCH DAMAGE. |
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| 32 | */ |
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| 33 | |
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| 34 | #pragma once |
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| 35 | |
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| 36 | #include <vector> |
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| 37 | #include <sstream> |
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| 38 | #include "CommonDef.h" |
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| 39 | |
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| 40 | class TComOutputBitstream; |
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| 41 | |
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| 42 | /** |
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| 43 | * Represents a single NALunit header and the associated RBSPayload |
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| 44 | */ |
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| 45 | struct NALUnit |
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| 46 | { |
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| 47 | NalUnitType m_nalUnitType; ///< nal_unit_type |
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| 48 | #if NAL_REF_FLAG |
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| 49 | Bool m_nalRefFlag; ///< nal_ref_flag |
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| 50 | #else |
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| 51 | NalRefIdc m_nalRefIDC; ///< nal_ref_idc |
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| 52 | #endif |
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| 53 | Int m_viewId; ///< view_id |
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| 54 | Bool m_isDepth; ///< is_depth |
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| 55 | unsigned m_temporalId; ///< temporal_id |
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| 56 | #if !H0388 |
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| 57 | bool m_OutputFlag; ///< output_flag |
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| 58 | #endif |
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| 59 | |
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| 60 | /** construct an NALunit structure with given header values. */ |
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| 61 | #if H0388 |
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| 62 | #if NAL_REF_FLAG |
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| 63 | NALUnit( |
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| 64 | NalUnitType nalUnitType, |
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| 65 | Bool nalRefFlag, |
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| 66 | Int viewId, |
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| 67 | Bool isDepth, |
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| 68 | Int temporalId = 0) |
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| 69 | :m_nalUnitType (nalUnitType) |
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| 70 | ,m_nalRefFlag (nalRefFlag) |
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| 71 | ,m_viewId (viewId) |
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| 72 | ,m_isDepth (isDepth) |
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| 73 | ,m_temporalId (temporalId) |
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| 74 | {} |
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| 75 | #else |
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| 76 | NALUnit( |
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| 77 | NalUnitType nalUnitType, |
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| 78 | NalRefIdc nalRefIDC, |
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| 79 | Int viewId, |
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| 80 | Bool isDepth, |
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| 81 | unsigned temporalID = 0) |
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| 82 | { |
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| 83 | m_nalUnitType = nalUnitType; |
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| 84 | m_nalRefIDC = nalRefIDC; |
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| 85 | m_viewId = viewId; |
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| 86 | m_isDepth = isDepth; |
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| 87 | m_temporalId = temporalID; |
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| 88 | } |
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| 89 | #endif |
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| 90 | #else |
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| 91 | NALUnit( |
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| 92 | NalUnitType nalUnitType, |
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| 93 | NalRefIdc nalRefIDC, |
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| 94 | Int viewId, |
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| 95 | Bool isDepth, |
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| 96 | unsigned temporalID = 0, |
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| 97 | bool outputFlag = true) |
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| 98 | { |
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| 99 | m_nalUnitType = nalUnitType; |
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| 100 | m_nalRefIDC = nalRefIDC; |
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| 101 | m_viewId = viewId; |
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| 102 | m_isDepth = isDepth; |
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| 103 | m_temporalId = temporalID; |
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| 104 | m_OutputFlag = outputFlag; |
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| 105 | } |
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| 106 | #endif |
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| 107 | |
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| 108 | /** default constructor - no initialization; must be perfomed by user */ |
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| 109 | NALUnit() {} |
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| 110 | |
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| 111 | /** returns true if the NALunit is a slice NALunit */ |
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| 112 | bool isSlice() |
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| 113 | { |
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| 114 | return m_nalUnitType == NAL_UNIT_CODED_SLICE_IDR |
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| 115 | #if H0566_TLA |
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| 116 | || m_nalUnitType == NAL_UNIT_CODED_SLICE_IDV |
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| 117 | || m_nalUnitType == NAL_UNIT_CODED_SLICE_CRA |
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| 118 | || m_nalUnitType == NAL_UNIT_CODED_SLICE_TLA |
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| 119 | #else |
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| 120 | || m_nalUnitType == NAL_UNIT_CODED_SLICE_CDR |
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| 121 | #endif |
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| 122 | || m_nalUnitType == NAL_UNIT_CODED_SLICE; |
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| 123 | } |
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| 124 | }; |
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| 125 | |
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| 126 | struct OutputNALUnit; |
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| 127 | |
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| 128 | /** |
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| 129 | * A single NALunit, with complete payload in EBSP format. |
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| 130 | */ |
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| 131 | struct NALUnitEBSP : public NALUnit |
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| 132 | { |
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| 133 | std::ostringstream m_nalUnitData; |
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| 134 | |
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| 135 | /** |
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| 136 | * convert the OutputNALUnit #nalu# into EBSP format by writing out |
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| 137 | * the NALUnit header, then the rbsp_bytes including any |
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| 138 | * emulation_prevention_three_byte symbols. |
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| 139 | */ |
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| 140 | NALUnitEBSP(OutputNALUnit& nalu); |
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| 141 | }; |
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| 142 | //! \} |
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| 143 | //! \} |
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