1 /* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 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 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18 /*********************************************************************************/ 19 /* ------------------------------------------------------------------- */ 20 /* MPEG-4 MovieHeaderAtom Class */ 21 /* ------------------------------------------------------------------- */ 22 /*********************************************************************************/ 23 /* 24 This MovieHeaderAtom Class defines the overall media-independent information 25 relevant to the MPEG-4 presentation as a whole. 26 */ 27 28 29 #ifndef MOVIEHEADERATOM_H_INCLUDED 30 #define MOVIEHEADERATOM_H_INCLUDED 31 32 #ifndef OSCL_FILE_IO_H_INCLUDED 33 #include "oscl_file_io.h" 34 #endif 35 36 #ifndef FULLATOM_H_INCLUDED 37 #include "fullatom.h" 38 #endif 39 40 class MovieHeaderAtom : public FullAtom 41 { 42 43 public: 44 MovieHeaderAtom(MP4_FF_FILE *fp, uint32 size, uint32 type); 45 virtual ~MovieHeaderAtom(); 46 47 // Creation Time gets - may not need to have the set method public! getCreationTime()48 uint64 getCreationTime() const 49 { 50 if (getVersion() == 1) 51 return _creationTime64; 52 else 53 return _creationTime; 54 55 } 56 57 // Modification Time gets - may not need to have the set method public! getModificationTime()58 uint64 getModificationTime() const 59 { 60 if (getVersion() == 1) 61 return _modificationTime64; 62 else 63 return _modificationTime; 64 } 65 66 // Time Scale gets getTimeScale()67 uint32 getTimeScale() const 68 { 69 return _timeScale; 70 } 71 72 // Duration gets getDuration()73 uint64 getDuration() const 74 { 75 if (getVersion() == 1) 76 return _duration64; 77 else 78 return _duration; 79 } 80 81 // NextTrackID gets getNextTrackID()82 uint32 getNextTrackID() const 83 { 84 return _nextTrackID; 85 } 86 getCreationDate()87 OSCL_wHeapString<OsclMemAllocator> getCreationDate() 88 { 89 return (convertTimeToDate(_creationTime)); 90 } 91 92 private: 93 94 OSCL_wHeapString<OsclMemAllocator> convertTimeToDate(uint32 time); 95 96 uint32 _creationTime; // 4/8 (32/64bits) -- Will templatize later - using 32bits (version 0) for now 97 uint64 _creationTime64; 98 99 uint32 _modificationTime; // 4/8 (32/64bits) -- Will templatize later - using 32bits for now 100 uint64 _modificationTime64; 101 102 uint32 _timeScale; // 4 (32bits) 103 104 uint32 _duration; // 4/8 (32/64bits) -- Will templatize later - using 32bits for now 105 uint64 _duration64; 106 107 uint32 _nextTrackID; // 4 (32 bits) 108 109 }; 110 111 #endif // MOVIEHEADERATOM_H_INCLUDED 112 113 114