UAS KLV Metadata Tag Filtering
You can filter MISB 0601 metadata tags on a per tag basis, by specifying all or any subset of the MISB 0601 tags. If a tag is included, it is allowed to proceed to the metadata elementary stream (ES). Tags that are not included are filtered out of the metadata AU and not transmitted in the metadata ES. Non-MISB 0601 metadata (such as MISB 0605 or custom metadata adhering to SMPTE 336) is not affected by the MISB 0601 filtering.
When filtering MISB 0601 metadata tag 48 (security metadata), you can also filter the security metadata tags defined in MISB 0102. See uastags and sectags in the metadata
parameters table.
Examples
To enable UAS tag filtering and list the items that will be included in the stream:
# metadata 1 set uastags=2,3,13,14,48 sectags=1,2,3 # metadata 1 get UAS Tag Filtering : On |
In order to show how the sectags option works, the main uastags
filter includes the security local metadata set (tag #48) but only specifies the security classification, the country coding method and classifying country information. Note that you can set the MISB ST 0902 recommended minimum metadata set by specifying “minimum” for the uastags
parameter.
To disable KLV tag filtering and receive the full KLV metadata:
# metadata 1 set uastags=all sectags=all |
You can filter out the entire UAS or security data set by using "none" for uastags
or sectags
instead.
When security re-classification is enabled on a metadata source, the security tag filtering settings (if configured) will not be used.