CaptureStudio

A working command-line build of the frame renderer: it replays a recording through a real terminal model — wrapping, cursor movement, erase, and colour from 16 through 256 to full truecolour — and draws the result to PNG with a bitmap font compiled into the program. It scores how much changed between frames to suggest the moments worth showing, and can lay the whole recording out as one contact sheet. It renders recordings; capturing the screen is a different job.

Naming status

Working name only — brand verdict **CAUTION** (Medium). Collision: Capture Studio. Prefer a more distinctive coined name.

What it draws on

Existing paid software whose best ideas shaped this program: Bandicam, Snagit, FastStone Capture, Action! Screen Recorder.

Command line

There is nothing extra to install. The program you download is the command-line tool as well: give it arguments instead of double-clicking it and it runs as one, with its output on your terminal. The standalone builds below are the same engine on its own, for machines where you would rather not ship a window at all.

capturestudio - still frames and moment finding for terminal recordings
                 (Techlosoft Remote Ops Workspace)

USAGE
  capturestudio moments       <cast.jsonl> [--count N] [--quiet S] [--json]
  capturestudio shot          <cast.jsonl> --at T --out frame.png [render flags]
  capturestudio shots         <cast.jsonl> --auto [--count N] --out-dir DIR
  capturestudio shots         <cast.jsonl> --at T [--at T ...] --out-dir DIR
  capturestudio contact-sheet <cast.jsonl> --out sheet.png [--count N]
  capturestudio info          <cast.jsonl> [--json]
  capturestudio help | -h | --help | version

COMMANDS
  moments        Replay the cast, score every burst of screen change, and list
                 the settle points worth capturing: timestamp, score and a
                 one-line preview of what changed. Writes no files.
  shot           Reconstruct the screen at one timestamp and write it as a PNG.
  shots          Write several PNGs at once: --auto picks the timestamps using
                 moment finding, or give explicit --at times.
  contact-sheet  One PNG holding a numbered grid of thumbnails that summarises
                 the whole recording.
  info           Cast header, event count, duration, byte totals, and what the
                 terminal emulator could not render.

TIMESTAMPS
  --at accepts seconds (12.5), seconds with a suffix (12.5s), a percentage of
  the recording (50%), or the words start and end. Commas separate several
  times in one flag: --at 0,25%,end

RENDER FLAGS (shot, shots, contact-sheet)
  --scale N      integer magnification, 1-32. Default 2 for shot/shots.
  --theme NAME   dark (default) or light.
  --pad N        border around the grid, in unscaled pixels. Default 8.
  --cols N       override the grid width from the cast header.
  --rows N       override the grid height from the cast header.
  --force        overwrite an output file that already exists.

OTHER FLAGS
  --count N      how many moments to list or frames to write.
  --quiet S      seconds of stillness that end a burst of change. Default 0.25.
...

Recorded from the shipped binary, not written by hand.

Source

Every file the program is built from:

cast.go · console.go · console_test.go · font.go · fontgen.go · guided.go · main.go · main_test.go · moments.go · render.go · term.go

SHA-256 checksums · build instructions & scope notes · full build plan