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|Author:||enpingado [ Wed Apr 06, 2011 7:37 pm ]|
|Post subject:||Nesting sets|
I am trying to define a local set with a nested local set in my own dictionary xml.
I am able to define my own local set, but would like to define a local set that includes another local set.
here is a simple example of what i want to do.
local set: corner
contains x and y integers.
local set: box
contains a,b,c,d. where all are corners.
|Author:||Matt Beard [ Mon Apr 18, 2011 12:06 pm ]|
Nested sets are specifically forbidden for MXF.
From 377m-2004, section 5.3.8:
"Note that the use of recursive group structures could prevent backwards compatibility with existing implementations and is therefore prohibited in MXF defined sets."
From 377-1-2009, section 6.3.9:
"Recursive group structures shall not be used in MXF Structural and MXF Descriptive Metadata Sets"
It may be possible to use them in non-MXF structures in an MXF file (e.g. a proprietary descriptive metadata scheme) but this has not been tested in MXFLib as it is likely to break many implementations.
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