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What is the relationship between the CapabilityTableEntryNumber and the CapabilityDescriptorNumber in H.245? (Q77)
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The information in this article applies to: H.245
Descriptors, which are numbered, contain references to table entries via
table-entry numbers, but there is no relationship between the two
numbers. CapabilityDescriptorNumber is the "tag" for a descriptor;
CapabilityTableEntryNumber is the "tag" for a table entry. For example,
the following capability set indicates that this EP prefers to receive
G.723.1 and H.263 but that it can also receive G.711 and H.263.
Entry # | Capability |
1 | receive G.723.1 audio |
3 | receive H.263 video |
2 | receive G.711 audio |
10 | receive H.261 video |
Descriptor # | Capabilities |
2 | entry #1 and entry #3 |
5 | entry #2 and entry #3 |