M9-precursor: v1 Scrypted Script (snapshot-rate end-to-end)

scrypted/scrypted-viewport.ts — single-file TypeScript script for
Scrypted's Scripts plugin. Binds N viewports to N Scrypted cameras and
implements the full Scrypted side of the protocol:

  Outbound (Scrypted -> device):
    - POST /config on script load + every 5 min (re-syncs after device
      reboot or DHCP renumber).
    - POST /state {wake} when a bound camera fires an event or when the
      device's own POST /state {wake} arrives (operator tap).
    - POST /frame at FRAME_INTERVAL_MS (1 fps default) via
      camera.takePicture({picture:{width,height}}).
    - POST /state {sleep} when the Scrypted-side per-stream timer
      expires.

  Inbound (device -> Scrypted POST <base>/state):
    - {state:wake} -> startStream() (cancels pending sleep timer + any
      prior interval, then begins pushing frames).
    - {state:sleep} -> stopStream(sendSleep=false) (no echo back).
    - Unknown viewport -> 404. Bad body -> 400.

  Race rules from the spec are honored:
    - Every callback cancels prior pending state for that viewport
      before applying the new state (cancelPendingSleep semantics).
    - startStream / stopStream are idempotent — re-entering is safe.
    - On /frame returning 409, stream stops immediately without
      echoing /state {sleep} back (the device already slept).

  Configuration is a single BINDINGS array at the top of the file —
  edit name/host/cameraId/orientation per viewport and save in the
  Scrypted UI. No package install. Tuning constants
  (IDLE_TIMEOUT_MS, FRAME_INTERVAL_MS, REREGISTER_INTERVAL_MS, etc.)
  are right above the class.

scrypted/README.md walks through Scripts-plugin install, the BINDINGS
schema, what each constant controls, an event-by-event description of
the script's behavior, the v1 limitations (snapshot-rate, manual IP,
camera must respect picture dims), and an end-to-end smoke test.

Top-level README's Scrypted Integration section now links the script
file and the install README directly.

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 4fe081d..c4f4406 100644
--- a/README.md
+++ b/README.md
@@ -335,7 +335,7 @@ Both use a small embedded bitmap font. No LVGL, no general text engine.
 
 The Scrypted side is **code, not configuration** — Scrypted has no built-in concept of a network framebuffer. The code is small and lives inside Scrypted:
 
-- **v1**: a Scrypted Script (in the Scripts plugin) — listens for camera events, calls `takePicture()`, POSTs the JPEG to `/frame`. Exposes a `POST /state` handler at the plugin's endpoint root (e.g. `http://scrypted.local:11080/endpoint/scrypted-viewport/state`) via the EndpointManager. ~50 lines of TypeScript, no package install.
+- **v1** (in this repo at [`scrypted/scrypted-viewport.ts`](scrypted/scrypted-viewport.ts), install instructions in [`scrypted/README.md`](scrypted/README.md)): a Scrypted Script (in the Scripts plugin) — listens for camera events, calls `takePicture()`, POSTs the JPEG to `/frame`. Exposes a `POST /state` handler at the plugin's endpoint root (e.g. `http://scrypted.local:11080/endpoint/scrypted-viewport/state`) via the EndpointManager. ~250 lines of TypeScript, no package install.
 - **Next milestone after v1 (`/stream`)**: add `POST /stream` with `multipart/x-mixed-replace` chunked body for live frame rates. Scrypted side becomes a small custom plugin using FFmpeg via `MediaManager` to pipe MJPEG. `/frame` stays for snapshots and debug.
 
 Either way, no Scrypted core changes and no external service.