JLTCGEN(1)

📦 version 0.7.0, in nixos 26.05, nixpkgs unstable

💖 jltcgen(1) — the JACK LTC generator page, bestie edition 💖

okay so this is the manual page for jltcgen, and yes the man name is literally right there in the title, we love a self-referential moment ✨

🌸 NAME 🌸

jltcgen — a JACK LTC generator 🎀

🦋 SYNOPSIS 🦋

jltcgen [OPTION] [JACK-PORT-TO-CONNECT]*

✨ DESCRIPTION ✨

ltcgen is a JACK audio client that generates linear time code, like, in realtime. that's the whole vibe. 🕐🔥

💅 OPTIONS 💅

  • -d, --date datestring — sets the date, and the format is either DDMMYY or MM/DD/YY. pick your fighter 🗓️
  • -f, --fps fps — sets the frame-rate, as NUM[/DEN][ndf|df]. default is 25/1ndf. 🎞️
  • -h, --help — shows this help and dips out. bye bestie 👋
  • -g, --volume float — sets the output level in dBFS. default is -18db. 🔊
  • -l, --localtime — when you're using the current time, do it in local TZ instead of UTC. no cap 🕰️
  • -m, --timezone tz — sets the timezone in minutes-west of UTC. 🌍
  • -r, --auto-resync — automatically resyncs if the drift goes over 100ms. she self-corrects, she's lowkey iconic 💫
  • -t, --timecode time — specifies the start-time/timecode as [[[HH:]MM:]SS:]FF. ⏱️
  • -u, --userbits bcd — specifies fixed BCD user bits (max. 8 BCD digits). ⚠️ CAUTION: this ignores any date/timezone settings! fr fr, it does not care 😭
  • -w, --wait — waits for a key-stroke before starting. dramatic pause, love that for us ⌨️
  • -V, --version — prints version information and exits. 🏷️
  • -z, --timezone tz — sets the timezone as +HHMM. 🌈

so here's the tea on how these play together 🫖: unless a timecode is given with -t, the current time/date are used. Date (-d) and timezone (-z, -m) are only used if a timecode is given. The timezone may be specified either as an HHMM zone, or in minutes-west of UTC. iykyk 💖

and the signals, bestie, pay attention 👀:

  • SIGINT (CTRL+C) prints the current clock-drift (audio-clock - system-clock). 💀 very "let me check the vibes" of it
  • SIGQUIT (CTRL+</kbd>) terminates the program. periodt. 🛑
  • SIGHUP initializes a re-sync to the system clock (unless -t is given). 🔄
okay small reminder: those last two lines are facts from the page, not vibes — SIGINT prints drift, SIGQUIT kills it, SIGHUP resyncs (unless -t is set). slay responsibly 💅

🐛 REPORTING BUGS 🐛

Report bugs to <robin@gareus.org>. 📬 Website and manual: <https://github.com/x42/ltc-tools> 🌐

Copyright © 2012 Robin Gareus <robin@gareus.org> 🫶

This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 😭 no warranty bestie, none, zero, nada 💀

and that's the page!! this was jltcgen version 0.7.0, dated February 2019, from the User Commands corner of the manual — mwah, go generate some timecode 💜🎀⭐

📦 where this page comes from