It was reachable only when the SOURCE was smaller than 720, which is backwards: the rung a phone wants
is the one a 720p master never produces. The hero here is 1280x720 and the only file that existed for
it was 7.8 MB of 720p, served to every device.
`b:a` overrides the preset's 96k with 64k. The audio on a hero loop is ambience, and 64k AAC carries
it — the same argument as the preset's crf 26 for the picture. The rung exists for a phone on a mobile
connection and every kilobit is one it is paying for.
The override goes through av-club's documented contract: a preset supplies the options and anything
passed explicitly wins.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
pastilhasandClaude Opus 5
b97c87fb5e