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Syplheed-Reborn/docs/re/movie-binding.md
Sylpheed RE agent e81dcad632 re: the boot intro and the attract loop are the same video, and the
new-game intro has a name

Q9, answered twice over -- once from the disc and once from frames I had
already captured and not used.

The movie manifest's first eight slots are the whole boot-side flow, and
the slot key is the role: LOGO1-4 -> logo1-4.wmv (not on the disc, which
is why the splash is a screen), ADVERTISE_MOVIE -> ADV.wmv, STAFF_ROLL ->
the credits reel, MS00A -> S00A.wmv, MS01A -> S01A.wmv. So the new-game
intro is S00A.wmv, decoded -- which is the half I could not test at
runtime, because A on NEW GAME hangs the emulator.

And there is no separate boot-intro slot: ADV.wmv IS the advertise movie,
the boot just plays it first. Confirmed independently by matching 19
attract frames against five candidates -- 15 hit ADV with a playhead that
advances monotonically at the sampling rate and ends at 137 s, its full
length, with the title back on the next sample. So the attract movie
plays to its end; nothing cuts it short.

That corrects me. Two iterations ago I recorded the attract movie as
"~85 s, so probably not ADV.wmv" -- arithmetic on a start I never
observed, since sampling began 39 s in. REFUTED and METHOD both take it,
along with the matcher's real failure mode: a near-black frame has no
signature, and its runner-up is not evidence.

Skippability I did NOT settle, and the corpus contradicts itself: one
page says A skips a movie every time, while the boot harness deliberately
never taps during one because it breaks the title. Named the one-boot
test rather than picking a side.
2026-08-28 18:29:39 +00:00

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Which movie plays where — the boot intro, the attract loop, the new-game intro

Status: CONFIRMED. The bindings are decoded from the movie manifest, and the attract movie is independently measured from captured frames. One part — whether playback is skippable — is 🟡 and the corpus contradicts itself about it; that is written down rather than resolved by assertion.

Answers MISSION Q9, and contributes to Q6.

The manifest names the boot-side slots — decoded

The movie manifest (dat/tables.pak entry 0x5b983a08, schema 0x067025b9, movie_manifest.rs) is an array of slots whose key is the semantic role, with a parallel array of value records in the same order. Its first eight slots are the whole boot-side flow:

slot key movie also bound
LOGO1LOGO4 logo1.wmvlogo4.wmv
ADVERTISE_MOVIE ADV.wmv VOICE_ADV
STAFF_ROLL SYLPH_HD720p_8M-CBR_2ch.wmv subtitle table
MS00A S00A.wmv SUBTITLE_S00A, VOICE_S00A, a pwterop_s01a.prt overlay
MS01A S01A.wmv SUBTITLE_S01A, VOICE_S01A

The alignment is not in doubt here even though the manifest has valueless slots elsewhere: logo1..4 zip 1:1 onto LOGO1..4, and MS00AS00A.wmv, MS01AS01A.wmv are the manifest's own anchor rule.

The logo1logo4 slots are bound to .wmv files that are not on the disc — already established, and the reason the developer splash is a screen, not a video.

The boot intro and the attract movie are the same asset

There is no separate boot-intro slot. ADV.wmv is bound to ADVERTISE_MOVIE — it is the advertise movie, and the boot simply plays it first. For the port that means one video, not two.

Measured independently, from captured frames

Frames captured 5 s apart during an attract cycle were matched against five candidate movies by frame signature (32×18 normalised grayscale, movie frames cropped to the 675 of 720 rows the game surface shows, 1 fps sampling). tools/re-capture/frame_match.py; full table in data/attract-frame-match.txt.

15 of 19 attract frames matched ADV.wmv, and the matched timestamps advance monotonically at the sampling rate — 39, 45, 56, 62, 75, 80, 85, 92, 102, 108, 113, 119, 131, 137 s — ending at 137 s, which is ADV.wmv's full length, after which the title returned. That is not a similarity score, it is a playhead.

The control was run first and behaves the same way. Frames captured during the boot movie — known to be ADV.wmv — matched ADV at 116, 121, 129, 134 s. Its failure mode is worth stating: on near-black frames the correlation collapses (one control frame scored 0.000, another tied S13A 0.984 against ADV 0.926). Those are exactly the 4 attract frames that did not match. A dark frame carries no signature; it is not evidence for the runner-up.

🔴 This corrects an earlier claim of mine

Two iterations ago I recorded the attract movie as "≈85 s, so probably not ADV.wmv's 137 s". That was wrong, and the mistake was arithmetic on an unobserved start: my sampling began when the movie was already 39 s in, so what I timed was the tail of it, not the whole thing.

The new-game intro is S00A.wmv

Slot MS00A — the prologue story intro, 93.87 s, with its own subtitle table, VOICE_S00A, and a text overlay. Decoded from the manifest, not measured: Ⓐ on NEW GAME hangs the emulator (menu-navigation-semantics.md), so this binding has not been watched happening.

🟡 Skippable — the corpus contradicts itself, and I did not settle it

  • canary-scripted-input-traps.md states plainly that "Ⓐ during a movie skips the movie, every time".
  • But boot_menu.sh / skip_intro.sh as they stand deliberately do not tap during a movie, logging movie … -> waiting it out (tapping breaks the title), and the same document records run G: 88 Ⓐ presses through the boot left a permanent black screen.

Both cannot be the whole story. The test: boot, tap Ⓐ exactly once well inside the movie, and record whether the title arrives early. One boot, and it was not run this iteration.

What ends the attract movie

Nothing intervenes: it plays to its end. The last matched frame is ADV at 137 s — the file's full duration — and the title is back on the next sample. So the attract cycle is: title, idle ~810 s, fade to black, ADV.wmv in full, back to the title (which redraws PRESS Ⓐ BUTTON).

What this contributes to Q6

The manifest is data the game reads to sequence the boot side: the slot keys are in play order and the key is the role. That is not the whole driver — it says what plays, not what decides to advance — but it is the first file-side piece of Q6's second half, and it means the boot-side asset order does not have to be authored.