1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef HEVC_UTILS_H_ 18 19 #define HEVC_UTILS_H_ 20 21 #include <stdint.h> 22 23 #include <media/stagefright/foundation/ABase.h> 24 #include <media/stagefright/foundation/ABuffer.h> 25 #include <utils/Errors.h> 26 #include <utils/KeyedVector.h> 27 #include <utils/StrongPointer.h> 28 #include <utils/Vector.h> 29 30 namespace android { 31 32 enum { 33 kHevcNalUnitTypeVps = 32, 34 kHevcNalUnitTypeSps = 33, 35 kHevcNalUnitTypePps = 34, 36 kHevcNalUnitTypePrefixSei = 39, 37 kHevcNalUnitTypeSuffixSei = 40, 38 }; 39 40 enum { 41 // uint8_t 42 kGeneralProfileSpace, 43 // uint8_t 44 kGeneralTierFlag, 45 // uint8_t 46 kGeneralProfileIdc, 47 // uint32_t 48 kGeneralProfileCompatibilityFlags, 49 // uint64_t 50 kGeneralConstraintIndicatorFlags, 51 // uint8_t 52 kGeneralLevelIdc, 53 // uint8_t 54 kChromaFormatIdc, 55 // uint8_t 56 kBitDepthLumaMinus8, 57 // uint8_t 58 kBitDepthChromaMinus8, 59 // uint8_t 60 kVideoFullRangeFlag, 61 // uint8_t 62 kColourPrimaries, 63 // uint8_t 64 kTransferCharacteristics, 65 // uint8_t 66 kMatrixCoeffs, 67 }; 68 69 class HevcParameterSets { 70 public: 71 enum Info : uint32_t { 72 kInfoNone = 0, 73 kInfoIsHdr = 1 << 0, 74 kInfoHasColorDescription = 1 << 1, 75 }; 76 77 HevcParameterSets(); 78 79 status_t addNalUnit(const uint8_t* data, size_t size); 80 81 bool findParam8(uint32_t key, uint8_t *param); 82 bool findParam16(uint32_t key, uint16_t *param); 83 bool findParam32(uint32_t key, uint32_t *param); 84 bool findParam64(uint32_t key, uint64_t *param); 85 getNumNalUnits()86 inline size_t getNumNalUnits() { return mNalUnits.size(); } 87 size_t getNumNalUnitsOfType(uint8_t type); 88 uint8_t getType(size_t index); 89 size_t getSize(size_t index); 90 // Note that this method does not write the start code. 91 bool write(size_t index, uint8_t* dest, size_t size); 92 status_t makeHvcc(uint8_t *hvcc, size_t *hvccSize, size_t nalSizeLength); 93 getInfo()94 Info getInfo() const { return mInfo; } 95 96 private: 97 status_t parseVps(const uint8_t* data, size_t size); 98 status_t parseSps(const uint8_t* data, size_t size); 99 status_t parsePps(const uint8_t* data, size_t size); 100 101 KeyedVector<uint32_t, uint64_t> mParams; 102 Vector<sp<ABuffer>> mNalUnits; 103 Info mInfo; 104 105 DISALLOW_EVIL_CONSTRUCTORS(HevcParameterSets); 106 }; 107 108 } // namespace android 109 110 #endif // HEVC_UTILS_H_ 111