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_TimeToSampleAtom Class contains a compact version of a table that allows 20 indexing from decoding to sample number. 21 */ 22 23 24 #ifndef __TimeToSampleAtom_H__ 25 #define __TimeToSampleAtom_H__ 26 27 #include "fullatom.h" 28 29 #define PV_ERROR -1 30 31 class PVA_FF_TimeToSampleAtom : public PVA_FF_FullAtom 32 { 33 34 public: 35 PVA_FF_TimeToSampleAtom(uint32 mediaType); // Constructor 36 virtual ~PVA_FF_TimeToSampleAtom(); 37 38 // Member gets and sets 39 uint32 getEntryCount() const 40 { 41 return _entryCount; 42 } 43 44 void nextSample(uint32 ts); 45 46 void updateLastTSEntry(uint32 ts); 47 // Rendering the PVA_FF_Atom in proper format (bitlengths, etc.) to an ostream 48 virtual bool renderToFileStream(MP4_AUTHOR_FF_FILE_IO_WRAP *fp); 49 50 private: 51 void addDelta(int32 delta); 52 void addEntry(uint32 count, int32 delta); 53 void insertEntryAt(int32 index, uint32 count, int32 delta); 54 void replaceEntryAt(int32 index, uint32 count, int32 delta); 55 56 virtual void recomputeSize(); 57 58 uint32 _entryCount; 59 60 Oscl_Vector<uint32, OsclMemAllocator> *_psampleCountVec; 61 Oscl_Vector<int32, OsclMemAllocator> *_psampleDeltaVec; 62 63 int32 _mediaType; 64 65 // For visual samples 66 uint32 _currentTimestamp; 67 68 // Flag to say when the first entry has been received 69 bool _firstEntry; 70 71 bool _lastTSUpdated; 72 }; 73 74 75 #endif 76 77
