This attacks a number of problems; having compact group ‘definition’ in-line in the mapping box, a different way to compress the mapping (absolute sample numbers), multiple group definitions for the same type (with separated mapping tables), and extended, possibly variable-length in-line ‘values’ in the mapping box. All except the last seem fairly straightforward.
The absolute sample numbers was a stylistic point (no other sample table has absolute numbers).
This design is also somewhat complicated by a desire to use the same definition material for both sample groups and timed meta-data.
We’d like a resolution asking for input on improving the sample group design, overall, taking into account these (and maybe other) issues and opportunities.
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