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00029 #ifndef _AP4_STTS_ATOM_H_
00030 #define _AP4_STTS_ATOM_H_
00031
00032
00033
00034
00035 #include "Ap4Array.h"
00036 #include "Ap4Atom.h"
00037
00038
00039
00040
00041 class AP4_SttsTableEntry {
00042 public:
00043 AP4_SttsTableEntry() :
00044 m_SampleCount(0),
00045 m_SampleDuration(0) {}
00046 AP4_SttsTableEntry(AP4_Cardinal sample_count,
00047 AP4_Duration sample_duration) :
00048 m_SampleCount(sample_count),
00049 m_SampleDuration(sample_duration) {}
00050
00051 AP4_Cardinal m_SampleCount;
00052 AP4_Duration m_SampleDuration;
00053 };
00054
00055
00056
00057
00058 class AP4_SttsAtom : public AP4_Atom
00059 {
00060 public:
00061
00062 static AP4_SttsAtom* Create(AP4_Size size, AP4_ByteStream& stream);
00063
00064
00065 AP4_SttsAtom();
00066 virtual AP4_Result InspectFields(AP4_AtomInspector& inspector);
00067 virtual AP4_Result GetDts(AP4_Ordinal sample, AP4_TimeStamp& dts);
00068 virtual AP4_Result AddEntry(AP4_UI32 sample_count, AP4_UI32 sample_duration);
00069 virtual AP4_Result GetSampleIndexForTimeStamp(AP4_TimeStamp ts,
00070 AP4_Ordinal& sample_index);
00071 virtual AP4_Result WriteFields(AP4_ByteStream& stream);
00072
00073 private:
00074
00075 AP4_SttsAtom(AP4_UI32 size,
00076 AP4_UI32 version,
00077 AP4_UI32 flags,
00078 AP4_ByteStream& stream);
00079
00080
00081 AP4_Array<AP4_SttsTableEntry> m_Entries;
00082 struct {
00083 AP4_Ordinal entry_index;
00084 AP4_Ordinal sample;
00085 AP4_TimeStamp dts;
00086 } m_LookupCache;
00087 };
00088
00089 #endif // _AP4_STTS_ATOM_H_