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branderson 7c4359eb39 webui: play a finished song against its review
Checking whether the notes line up meant packaging the song, finding it in
the game and starting it there. The review panel now plays the song folder
itself: a transport above the lyrics, the line being sung highlighted, words
lighting up as they are reached, and a playhead sweeping each line against
its notes. Clicking a line or a word plays from there.

Playback is modelled on the game rather than on whatever is convenient: #MP3
is the audio and the clock, #VIDEO is muted background slaved to it, and the
times are the same seconds the notes were generated from. A word that lights
up late here is late in the game.

package now strips the audio track from the video it writes. It is the same
recording as the #MP3, so a player that does not mute the video plays both a
few frames apart, which is heard as an echo. The compatible-video branch
remuxes with -c copy -an rather than copying the file, so it still does not
re-encode. The browser player mutes the video as well, which covers song
folders built before this.

A new /api/jobs/{id}/media/{audio,video,cover} serves what the song's own
#MP3/#VIDEO/#COVER headers name, refusing anything resolving outside the song
folder. Range requests come from FileResponse, so seeking works.

Also, per review: CREATE SONG moves out of the form and into the top of the
queue, where it is always available, and a successful submission keeps the
fields it sent instead of emptying them.
2026-09-25 23:33:23 -07:00

84 KiB
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