public HRESULT GetItem(Guid guidKey, PropVariant pValue)
{
var hr = _type.GetItem(guidKey, pValue);
Trace("guid: " + guidKey.ToName() + " value: " + (pValue != null ? pValue.ToString() : "<null>") + " hr: " + hr);
return(hr);
}
public static object GetValue(this IMFMediaType obj, Guid key)
{
if (obj == null)
{
throw new ArgumentNullException(nameof(obj));
}
var pv = new PropVariant();
if (obj.GetItem(key, pv).IsError)
{
return(null);
}
return(pv.Value);
}
public static object GetValue(this IMFMediaType input, Guid key)
{
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
using (var pv = new PropVariant())
{
if (input.GetItem(key, pv).IsError)
{
return(null);
}
return(pv.Value);
}
}