/// <summary>
/// 当中调用传输语法类对象从data[idx]开始解码一条数据元素，添加到items, 循环将整个数据集解码，返回items, 同时变化后的idx通过引用(ref)返回。
/// </summary>
public virtual List <DCMAbstractType> Decode(byte[] data, ref uint idx)
{
while (idx < data.Length)
{
DCMAbstractType item = null;
item = syntax.Decode(data, ref idx);
items.Add(item);
}
return(items);
}
public override List <DCMAbstractType> Decode(byte[] data, ref uint idx)
{
DCMAbstractType item = TransferSyntax.Decode(data, ref idx);
if (item.gtag == 0xfffe && item.etag == 0xe000) //item start
{
uint ulidx = 0;
byte[] val = (byte[])item.value;
base.Decode(val, ref ulidx);
//tudo：修正idx位置
if (item.length == 0xffffffff) //修正idx位置
{
idx -= (uint)(item.length - ulidx);
}
}
return(items);
}
public override List <DCMAbstractType> Decode(byte[] data, ref uint idx)
{
while (idx < data.Length)
{
DCMAbstractType item = null;
//此处调用传输语法对象解码一条数据元素
item = TransferSyntax.Decode(data, ref idx);
if (item.gtag == 0x0002)
{
items.Add(item);
}
else
{
idx -= item.length;
idx -= 8;
break;
}
}
return(items);
}
public virtual List <DCMAbstractType> Decode(byte[] data, ref uint idx)
{
while (idx < data.Length)
{
//此处调用传输语法对象解码一条数据元素
//DCMAbstractType item = TransferSyntax.Decode(data, ref idx);
DCMAbstractType item = TransferSyntax.Decode(data, ref idx);
//判断特殊标记
if (item.gtag == 0xfffe && item.etag == 0xe0dd)
{
break;
}
if (item.gtag == 0xfffe && item.etag == 0xe00d)
{
break;
}
if (item.vr == "SQ")
{
DCMDataSequnce sq = new DCMDataSequnce(TransferSyntax);
uint ulidx = 0;
byte[] val = (byte[])item.value;
sq.Decode(val, ref ulidx);
item.value = sq;
//todo：修正idx位置
if (item.length == 0xffffffff) //修正idx位置
{
idx -= (uint)(item.length - ulidx);
}
}
items.Add(item);
}
return(items);
}