The LTC card repainted only on server anchors (~4x/s), so the frame
counter jumped in ~7-frame steps. Now the client counts every frame
locally between anchors and re-syncs on each one — frame-accurate and
smooth, with no extra network traffic.
- Server anchors carry ageMs (how old the decoded timecode is) so clients
can pin the anchor to their own clock. ltc-listener reports it while
running; composeLtc passes it through (listener) or derives it (reader).
- Client does exact SMPTE frame<->timecode math (parseTc/tcToFrames/
framesToTc, incl. 29.97 drop-frame minute counting) and advances the
display in a requestAnimationFrame loop at the LTC's own rate.
- Robust when rAF is throttled (backgrounded tab): render() paints the
extrapolated frame at the 4x/s anchor rate too, so the display never
freezes — the rAF loop only refines it to every frame when visible.
- Anchor jitter can't tick the counter backwards (small regressions
clamped; genuine seeks/re-strikes pass); freshness cap stops freewheel
into phantom frames when anchors stop arriving.
Verified: SMPTE math against the encoder over 200k drop-frame frames plus
round-trips; the extrapolation pipeline simulated at 30/25/29.97DF showing
strict +1-per-frame advance and correct DF boundary crossing.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The LTC listener now lives inside the module: it spawns the native
ltc-capture helper (moved into the module folder, compiled on first use,
exact-name device matching) for the admin-selected input device, extracts
the configured channel, and decodes SMPTE LTC in-process (ltc.js — the
engine, shared with tools/ltc-reader.js, which remains the remote-machine
option posting to /ltc).
Admin config: an "LTC listener" switch, an audio-device select populated
live from the new GET /ltc/devices route, and a 1-based channel number.
The switch off means LTC is gone entirely: no LTC entry in the Add-tile
picker, no LTC row in the Timers menu or All-timers grid, no stage/API
probes, and POST /ltc answers 409. Source precedence with it on:
listener-with-data, fresh remote reader, listener's own no-signal verdict,
then the legacy API/stage chain.
Shell (admin page): `select` fields learn `optionsRoute` — options fetched
from a module route at render, saved value kept selectable when the route
or device is gone. Documented in MODULE-GUIDE; backward compatible.
Coordinate with the shell lane before its next admin.js change.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
ProPresenter 21.4 exposes no timecode through any API, so read the LTC
where it actually lives — the audio feed:
- tools/ltc-reader.js: zero-dependency SMPTE LTC decoder (biphase-mark,
adaptive bit clock, envelope-scaled comparator) fed s16le PCM on stdin
from ffmpeg/sox; POSTs running/stopped/nosignal + timecode + frame rate
(incl. 29.97 drop-frame) to the module. --selftest runs an encoder→
decoder suite (24/25/30 fps, DF minute counting, low level + noise + DC,
dropout recovery); --demo synthesizes live LTC through the real decoder
and ingest path with no audio hardware.
- Module: POST /ltc ingest route (optional bearer token, validated body,
6 s staleness with automatic fallback to the API probe / stage source),
richer LTC state (status, fps, df, reader source), health messages.
- Client: LTC card shows Running · <rate> / Stopped (held frame) /
No signal; works LTC-only with no ProPresenter host configured; the
reader-fed card no longer grays out when only ProPresenter is down.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Verified against ProPresenter 21.4: the legacy stage-display protocol
(ptl 610 — the only version PP21 accepts; newer values get 'out of
date') omits stage objects it predates, so a timecode field labeled LTC
never appears in any layout's frame list, and no timecode messages were
observed while idle. Fallback: an unknown uid streaming timecode-shaped
text (a fourth :FF group; not any configured timer's uuid) is bound as
LTC after two advancing samples, and that binding survives layout
refreshes. pp-timers-mock gains --ltc-unlisted to exercise the path.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
ProPresenter's HTTP API has no timecode route (verified: 21.4 returns
404), but its classic stage-display websocket still answers — so LTC now
comes from a stage layout field labeled "LTC": a zero-dependency RFC6455
client (stage-ws.js) authenticates (new stagePassword admin config),
resolves the LTC-labeled frame's uid from the layout list, and treats any
message carrying that uid as the timecode text. "Receiving" is a 2.5s
staleness heuristic; frozen or placeholder text reads as no-signal. The
HTTP probe stays authoritative when it ever answers (a 404 verdict is
retried once a minute), and the LTC card surfaces the reason when
timecode is unavailable (bad stage password, no LTC field). pp-timers-mock
grows a /stagedisplay websocket with --stage-pwd and --no-ltc-field to
exercise every path.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
New configSchema type 'endpoint' declared in the module spec: anything
that points at a device or service on the network must be one endpoint
field, rendered identically for every module in /admin as a joined
Host/IP : Port control and stored/handed to the module server as
{ host, port }. Migrates all three connection modules — ProdCom (was a
full URL field), ProPresenter and Timers (were separate host + port
fields). Legacy stored configs (prodcomUrl / flat host+port) keep
working until the admin form is re-saved, at which point the new shape
replaces them. MODULE-GUIDE documents the type and the presentation
rule: no split host/port fields, and full URLs only for genuine web
addresses.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RNYUv9EyrGSFmCnmH7WYKH
Adopt main's new multi-tile contract: the module's server exports
tiles() (answered from the poller's held state, never a fresh upstream
request) listing All timers, one entry per discovered timer, and LTC
timecode. The client branches on moduleApi.variant — solo tiles render
exactly one card with no selection menu, and a solo timer that vanishes
from ProPresenter shows a labeled "Not in ProPresenter" card instead of
erroring (visible even in the compact layout). pp-timers-mock gains
--drop=<uuid,...> to simulate a timer deleted in ProPresenter.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
New propresenter-timers module: polls /v1/timers + /v1/timers/current
(shapes verified against openapi.propresenter.com), probes the
undocumented /v1/timecode/status for LTC and honestly reports
"not available on this ProPresenter" when absent. Per-tile timer/LTC
selection via a Timers ▾ header menu (never-seen timers default on),
responsive auto-sized cards with state-derived colors (the API exposes
no per-timer color), unmistakable overrun. Includes tools/pp-timers-mock.js
for developing without a real ProPresenter.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
