75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
#include "box.cpp"
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#include <vector>
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struct afra_record {
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uint32_t Time;
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uint32_t Offset;
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};//afra_record
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class Box_afra {
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public:
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Box_afra( );
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~Box_afra();
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Box * GetBox();
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void SetTimeScale( uint32_t Scale = 1 );
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void AddEntry( uint32_t Time = 0, uint32_t SampleOffset = 0, uint32_t Offset = 0 );
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void WriteContent( );
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private:
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void SetReserved( );
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void SetDefaults( );
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Box * Container;
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uint32_t CurrentTimeScale;
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std::vector<afra_record> Entries;
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};//Box_ftyp Class
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Box_afra::Box_afra( ) {
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Container = new Box( 0x61667261 );
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SetReserved( );
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SetDefaults( );
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}
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Box_afra::~Box_afra() {
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delete Container;
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}
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Box * Box_afra::GetBox() {
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return Container;
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}
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void Box_afra::SetDefaults( ) {
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SetTimeScale( );
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}
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void Box_afra::SetReserved( ) {
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uint8_t * temp = new uint8_t[1];
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temp[0] = 0;
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Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0),1);
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Container->SetPayload((uint32_t)1,temp);
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}
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void Box_afra::SetTimeScale( uint32_t Scale ) {
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CurrentTimeScale = Scale;
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Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Scale),5);
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}
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void Box_afra::AddEntry( uint32_t Time, uint32_t SampleOffset, uint32_t Offset ) {
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if(Offset >= Entries.size()) {
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Entries.resize(Offset+1);
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}
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Entries[Offset].Time = Time;
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Entries[Offset].Offset = SampleOffset;
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}
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void Box_afra::WriteContent( ) {
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Container->ResetPayload();
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SetReserved( );
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if(!Entries.empty()) {
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for(int32_t i = Entries.size() -1; i >= 0; i--) {
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Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Entries[i].Offset),(i*12)+21);
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Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Entries[i].Time),(i*12)+17);
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Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0),(i*12)+13);
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}
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}
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Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Entries.size()),9);
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}
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