public MXFSystemItem(MXFReader reader, MXFKLV headerKLV)
: base(headerKLV, "SystemItem (CP)", KeyType.SystemItem)
{
this.m_eType = MXFObjectType.SystemItem;
if (this.Key[12] == 0x14)
{
this.Key.Name = "SystemItem (GC)";
}
reader.Seek(this.DataOffset); // Seek to the start of the data
// Parse system bitmap
this.SystemBitmap = (SystemBitmap)reader.ReadByte();
// Parse Content package rate
byte rate = reader.ReadByte();
int rateIndex = (rate & 0x1E) >> 1;
int[] rates = new int[16] {
0, 24, 25, 30, 48, 50, 60, 72, 75, 90, 96, 100, 120, 0, 0, 0
};
int rateNonDrop = 1;
if (rateIndex < 16)
{
rateNonDrop = rates[rateIndex];
}
this.PackageRate = rateNonDrop;
if ((rate & 0x01) == 0x01) // 1.001 divider active?
{
this.PackageRate = this.PackageRate / 1.001;
}
// Parse Content Package Type
byte type = reader.ReadByte();
this.StreamStatus = (SystemStreamStatus)((type & 0xE0) >> 5);
this.LowLatencyMode = ((type & 0x10) == 0x10);
this.TransferMode = (SystemTransferMode)((type & 0x0C) >> 2);
this.TimingMode = (SystemTimingMode)(type & 0x03);
this.ChannelHandle = reader.ReadUInt16();
this.ContinuityCount = reader.ReadUInt16();
this.SMPTE = reader.ReadULKey(); // Always read even if zero
MXFTimeStamp creationTimeStamp = reader.ReadBCDTimeCode(this.PackageRate);
this.CreationDate = creationTimeStamp.ToString();
this.UserDate = reader.ReadBCDTimeCode(this.PackageRate);
this.UserDateFullFrameNb = this.UserDate.GetString(true);
}
