Binary descriptions:

liba52-0.7.4: library for decoding ATSC A/52 streams
liba52-0.7.4-dbgsym: debug symbols for liba52-0.7.4
liba52-0.7.4-dev: library for decoding ATSC A/52 streams (development)
liba52-0.7.4-dev-dbgsym: debug symbols for liba52-0.7.4-dev