mistserver/util/MP4/box_stts.cpp
2011-02-16 21:42:40 +01:00

60 lines
1.4 KiB
C++

#include "box.cpp"
#include <string>
#include <vector>
struct stts_record {
uint32_t SampleCount;
uint32_t SampleDelta;
};//stsc_record
class Box_stts {
public:
Box_stts( );
~Box_stts();
Box * GetBox();
void SetReserved( );
void AddEntry( uint32_t SampleCount, uint32_t SampleDelta, uint32_t Offset = 0 );
void WriteContent( );
private:
Box * Container;
std::vector<stts_record> Entries;
};//Box_ftyp Class
Box_stts::Box_stts( ) {
Container = new Box( 0x73747473 );
SetReserved();
}
Box_stts::~Box_stts() {
delete Container;
}
Box * Box_stts::GetBox() {
return Container;
}
void Box_stts::SetReserved( ) {
Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0));
}
void Box_stts::AddEntry( uint32_t SampleCount, uint32_t SampleDelta, uint32_t Offset ) {
if(Offset >= Entries.size()) {
Entries.resize(Offset+1);
}
Entries[Offset].SampleCount = SampleCount;
Entries[Offset].SampleDelta = SampleDelta;
}
void Box_stts::WriteContent( ) {
Container->ResetPayload();
SetReserved( );
if(!Entries.empty()) {
for(int32_t i = Entries.size() -1; i >= 0; i--) {
Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Entries[i].SampleDelta),(i*8)+12);
Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Entries[i].SampleCount),(i*8)+8);
}
}
Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(Entries.size()),4);
}