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Media Stream Grouping We use the ‘group’ attribute and the FEC grouping semantics defined in RFC 4756 are used to associate source and repair flows together Additional Requirements If the Explicit Source FEC Payload ID is used Use only one FEC scheme for this source flow with a non-generic tag Or, use the generic tag for multiple FEC schemes If multiple repair flows are associated with a source flow The repair flows are additive and MAY be used together The repair flows MAY be prioritized |