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 This PVA_FF_TrackHeaderAtom Class specifies the characteristics of a single MPEG-4 20 track. 21 */ 22 23 24 #ifndef __TrackHeaderAtom_H__ 25 #define __TrackHeaderAtom_H__ 26 27 #include "fullatom.h" 28 #include "pv_mp4ffcomposer_config.h" 29 30 class PVA_FF_TrackHeaderAtom : public PVA_FF_FullAtom 31 { 32 33 public: 34 PVA_FF_TrackHeaderAtom(int32 type, uint32 trackID, uint8 version, uint32 flags, uint32 fileAuthoringFlags); // Constructor 35 virtual ~PVA_FF_TrackHeaderAtom(); 36 void init(int32 type); 37 38 void addSample(uint32 ts); 39 void updateLastTSEntry(uint32 ts); 40 41 // Media type gets adn sets 42 int32 getTrackMediaType() const 43 { 44 return _mediaType; 45 } 46 void setTrackMediaType(int32 type) 47 { 48 _mediaType = type; 49 } 50 51 // Creation Time gets and sets 52 void setCreationTime(uint32 ct) 53 { 54 _creationTime = ct; 55 } 56 uint32 getCreationTime() const 57 { 58 return _creationTime; 59 } 60 61 // Modification Time gets and sets 62 void setModificationTime(uint32 mt) 63 { 64 _modificationTime = mt; 65 } 66 uint32 getModificationTime() const 67 { 68 return _modificationTime; 69 } 70 71 // Time Scale gets and sets 72 void setTrackID(uint32 id) 73 { 74 _trackID = id; 75 } 76 uint32 getTrackID() const 77 { 78 return _trackID; 79 } 80 81 // Duration gets and sets 82 void setDuration(uint32 d) 83 { 84 _duration = d; 85 } 86 uint32 getDuration() const 87 { 88 return (_duration + _deltaTS); 89 } 90 91 // TimeScale gets and sets - in terms of the MOVIE timescale 92 void setTimeScale(uint32 ts) 93 { 94 _timeScale = ts; 95 } 96 uint32 getTimeScale() const 97 { 98 return _timeScale; 99 } 100 101 // Rendering the PVA_FF_Atom in proper format (bitlengths, etc.) to an ostream. 102 virtual bool renderToFileStream(MP4_AUTHOR_FF_FILE_IO_WRAP *fp); 103 void setVideoWidthHeight(int16 width, int16 height); 104 105 private: 106 virtual void recomputeSize(); 107 int32 _mediaType; 108 109 110 uint32 _creationTime; // 4/8 (32/64bits) -- Will templatize later - using 32bits for now 111 uint32 _modificationTime; // 4/8 (32/64bits) -- Will templatize later - using 32bits for now 112 uint32 _trackID; // 4 (32bits) 113 114 uint32 _reserved1; // = 0; 115 116 uint32 _duration; // 4/8 (32/64bits) -- Will templatize later - using 32bits for now 117 118 // Static reserved constants 119 uint32 _reserved2[3]; // = { 0, 0, 0 }; 120 uint16 _reserved3; // = 0; // 0x0100 if audio track 121 uint16 _reserved4; // = 0; 122 uint32 _reserved5[9]; // = { 0x00010000, 0, 0, 0, 0x00010000, 0, 0, 0, 0x40000000 }; 123 uint32 _reserved6; // = 0; // 0x01400000 if visual track 124 uint32 _reserved7; // = 0; // 0x00f00000 if visual track 125 126 // private member NOT to be rendered - only for internal use 127 uint32 _timeScale; 128 129 uint32 _prevTS; 130 uint32 _deltaTS; 131 uint16 _height; 132 uint16 _width; 133 134 }; 135 136 137 138 #endif 139 140
