crossfade-exclusion-heuristics

Decide when a crossfade must NOT run — the item plays as video, the item is too short for the fade, or two consecutive items belong to the same album — and encode each rule so it survives shuffle, an auto-length fade and a queue that keeps growing. Use when a fade cuts a song short, a video jumps to its first frame under the previous track, a 25-second interlude spends half its length fading, or an album sequenced…