Function estimated_size

pub fn estimated_size(
    target: Target,
    quality: Option<Quality>,
    duration_ms: u64,
    source: u64,
) -> u64

Roughly what a converted file will weigh, for a report given before the work.

An estimate, and said to be one wherever it is shown. The alternative is to answer “unknown” to “will this fit on my card”, which is the one question somebody filling a card is asking.