From c5a4d8c725d5eb5f70f35fdb618e1275101aad1e Mon Sep 17 00:00:00 2001
From: Erik Zandvliet <s.p.the.ghost@gmail.com>
Date: Fri, 21 Jan 2011 19:39:09 +0100
Subject: [PATCH] MVHD Box start

---
 MP4/box_mvhd.cpp | 75 ++++++++++++++++++++++++++++++++++++++++++++++++
 MP4/box_mvhd.h   | 24 ++++++++++++++++
 2 files changed, 99 insertions(+)
 create mode 100644 MP4/box_mvhd.cpp
 create mode 100644 MP4/box_mvhd.h

diff --git a/MP4/box_mvhd.cpp b/MP4/box_mvhd.cpp
new file mode 100644
index 00000000..fbb6750f
--- /dev/null
+++ b/MP4/box_mvhd.cpp
@@ -0,0 +1,75 @@
+#include "box_mvhd.h"
+
+Box_mvhd::Box_mvhd( ) {
+  Container = new Box( 0x6D766864 );
+}
+
+Box_mvhd::~Box_mvhd() {
+  delete Container;
+}
+
+Box * Box_mvhd::GetBox() {
+  return Container;
+}
+
+void Box_mvhd::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_mvhd::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_mvhd::SetTimeScale( uint32_t TimeUnits = 1 );
+
+void Box_mvhd::SetDurationTime( uint32_t TimeUnits ) {
+  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(TimeUnits),16);
+}
+
+void Box_mvhd::SetRate( uint32_t Rate = 0x00010000 );
+void Box_mvhd::SetVolume( uint16_t Volume = 0x0100 );
+
+void Box_mvhd::SetNextTrackID( uint32_t TrackID ) {
+  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(TrackID),12);
+}
+
+void Box_mvhd::SetReserved() {
+  Container->SetPayload((uint32_t)4,Box::uint16_to_uint8(0x40000000),68);
+  Container->SetPayload((uint32_t)4,Box::uint16_to_uint8(0),64);
+  Container->SetPayload((uint32_t)4,Box::uint16_to_uint8(0),60);
+  Container->SetPayload((uint32_t)4,Box::uint16_to_uint8(0),56);
+  Container->SetPayload((uint32_t)4,Box::uint16_to_uint8(0x10000),52);
+  Container->SetPayload((uint32_t)4,Box::uint16_to_uint8(0),48);
+  Container->SetPayload((uint32_t)4,Box::uint16_to_uint8(0),44);
+  Container->SetPayload((uint32_t)4,Box::uint16_to_uint8(0),40);
+  Container->SetPayload((uint32_t)4,Box::uint16_to_uint8(0x10000),36);
+  Container->SetPayload((uint32_t)4,Box::uint16_to_uint8(0),34);
+  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0),28);
+  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0),24);
+  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0),20);
+  Container->SetPayload((uint32_t)4,Box::uint32_to_uint8(0),12);
+}
+
+void Box_mvhd::SetDefaults() {
+  SetHeight();
+  SetWidth();
+  SetCreationTime();
+  SetModificationTime();
+  SetDurationTime();
+  SetFlags();
+  SetVersion();
+  SetTrackID();
+}
+
diff --git a/MP4/box_mvhd.h b/MP4/box_mvhd.h
new file mode 100644
index 00000000..28caa169
--- /dev/null
+++ b/MP4/box_mvhd.h
@@ -0,0 +1,24 @@
+#include "box.h"
+#include <ctime>
+
+#define SECONDS_DIFFERENCE 2082844800
+
+class Box_mvhd {
+  public:
+    Box_mvhd( );
+    ~Box_mvhd();
+    Box * GetBox();
+    void SetCreationTime( uint32_t TimeStamp = 0 );
+    void SetModificationTime( uint32_t TimeStamp = 0 );
+    void SetTimeScale( uint32_t TimeUnits = 1 );
+    void SetDurationTime( uint32_t TimeUnits = 0 );
+    void SetRate( uint32_t Rate = 0x00010000 );
+    void SetVolume( uint16_t Volume = 0x0100 );
+    void SetNextTrackID( uint32_t TrackID = 0 );
+  private:
+    void SetReserved();
+    void SetDefaults();
+    Box * Container;
+
+};//Box_ftyp Class
+