YouTube marks an AI-dubbed audio track DEFAULT=YES on some videos and
AVFoundation obeys the manifest, so a synthetic voice played over the
original. The app now always serves its own rewritten master playlist —
previously only when a quality cap was set — and marks the track whose
language matches the video's own as the default, falling back to
whichever track does not describe itself as dubbed. Every track is still
listed, so switching remains possible.
Adds an audio and subtitle picker to the transport bar, reading the
video element's audioTracks and textTracks. Subtitles start off for the
same reason the dub does: nothing translated is forced on.
Also collapses the player's own title-bar strip in window fullscreen,
which was leaving a stray bar above the player header.
vincent
73f12cfac1