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MDHD box finished

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This commit is contained in:
Erik Zandvliet 2011-01-13 21:33:25 +01:00
parent 927996365e
commit 0bb33f109d
2 changed files with 51 additions and 4 deletions
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44
MP4/box_mdhd.cpp
View file

@ -12,6 +12,34 @@ Box * Box_mdhd::GetBox() {
return Container;
}
void Box_mdhd::SetCreationTime( uint32_t TimeStamp ) {
uint32_t CreationTime;
if(!TimeStamp) {
CreationTime = time(NULL) + SECONDS_DIFFERENCE;
} else {
CreationTime = TimeStamp;
}
Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(CreationTime),4);
}
void Box_mdhd::SetModificationTime( uint32_t TimeStamp ) {
uint32_t ModificationTime;
if(!TimeStamp) {
ModificationTime = time(NULL) + SECONDS_DIFFERENCE;
} else {
ModificationTime = TimeStamp;
}
Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(ModificationTime),8);
}
void Box_mdhd::SetTimeScale( uint32_t TimeUnits ) {
Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(TimeUnits),12);
}
void Box_mdhd::SetDurationTime( uint32_t TimeUnits ) {
Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(TimeUnits),16);
}
void Box_mdhd::SetLanguage( uint8_t Firstchar, uint8_t Secondchar, uint8_t Thirdchar ) {
uint8_t FirstByte = 0;
uint8_t SecondByte = 0;
@ -22,4 +50,20 @@ void Box_mdhd::SetLanguage( uint8_t Firstchar, uint8_t Secondchar, uint8_t Third
FirstByte += (Secondchar >> 3);
SecondByte += (Secondchar << 5);
SecondByte += Thirdchar;
Container->SetPayload((uint32_t)1,&SecondByte,21);
Container->SetPayload((uint32_t)1,&FirstByte,20);
}
void Box_mdhd::SetReserved() {
Container->SetPayload((uint32_t)2,Box::uint16_to_uint8(0),22);
Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0));
}
void Box_mdhd::SetDefaults() {
SetLanguage();
SetDurationTime();
SetTimeScale();
SetModificationTime();
SetCreationTime();
}

11
MP4/box_mdhd.h
View file

@ -1,14 +1,17 @@
#include "box.h"
#include <ctime>
#define SECONDS_DIFFERENCE 2082844800
class Box_mdhd {
public:
Box_mdhd( );
~Box_mdhd();
Box * GetBox();
// void SetCreationTime( uint32_t TimeStamp = 0 );
// void SetModificationTime( uint32_t TimeStamp = 0 );
// void SetTimeScale( uint32_t TimeUnits = 0 );
// void SetDurationTime( uint32_t TimeUnits = 0 );
void SetCreationTime( uint32_t TimeStamp = 0 );
void SetModificationTime( uint32_t TimeStamp = 0 );
void SetTimeScale( uint32_t TimeUnits = 0 );
void SetDurationTime( uint32_t TimeUnits = 0 );
void SetLanguage( uint8_t Firstchar = 'n', uint8_t Secondchar = 'l', uint8_t Thirdchar = 'd' );
private:
void SetReserved();