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| Nesting sets http://freemxf.org/forum/viewtopic.php?f=2&t=244 |
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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. thanks |
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| Author: | Matt Beard [ Mon Apr 18, 2011 12:06 pm ] |
| Post subject: | |
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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