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util/MP4/box_trak.cpp

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+#include "box.cpp"
+#include <vector>
+#include <string>
+
+class Box_trak {
+  public:
+    Box_trak();
+    ~Box_trak();
+    Box * GetBox();
+    void AddContent( Box * newcontent, uint32_t offset = 0 );
+    void WriteContent( );
+  private:
+    Box * Container;
+    
+    std::vector<Box *> Content;
+};//Box_ftyp Class
+
+Box_trak::Box_trak( ) {
+  Container = new Box( 0x7472616B );
+}
+
+Box_trak::~Box_trak() {
+  delete Container;
+}
+
+Box * Box_trak::GetBox() {
+  return Container;
+}
+
+void Box_trak::AddContent( Box * newcontent, uint32_t offset ) {
+  if( offset >= Content.size() ) {
+    Content.resize(offset+1);
+  }
+  if( Content[offset] ) {
+    delete Content[offset];
+  }
+  Content[offset] = newcontent;
+}
+
+void Box_trak::WriteContent( ) {
+  Container->ResetPayload( );
+  Box * current;
+  std::string serializedbox = "";
+  for( uint32_t i = 0; i < Content.size(); i++ ) {
+    current=Content[i];
+    if( current ) {
+      serializedbox.append((char*)current->GetBoxedData(),current->GetBoxedDataSize());
+    }
+  }
+  Container->SetPayload((uint32_t)serializedbox.size(),(uint8_t*)serializedbox.c_str());
+}