Normalise a playback-detail setting: 'auto' and null pass through, a number becomes a whole rung count >= 1 (Infinity allowed), anything else (0, negative, NaN) means "no pin" (null).
'auto'
Infinity
Normalise a playback-detail setting:
'auto'and null pass through, a number becomes a whole rung count >= 1 (Infinityallowed), anything else (0, negative, NaN) means "no pin" (null).