# video-setup

A graph-based multi-peer video routing system written in C11. Nodes are media processes connected by typed transport edges; the graph carries video streams between sources, relays, and sinks with **priority** as a first-class property — so a low-latency monitoring feed and a high-quality archival feed can coexist on the same source.

Designed to run on resource-constrained hardware (Raspberry Pi capturing raw MJPEG, forwarding over TCP) alongside more capable machines that handle processing, relay, display, and archival.

## Documentation

- [architecture.md](architecture.md) — system design: graph model, transport protocol, relay design, codec layer, discovery, multi-site plan, device resilience, X11 integration
- [planning.md](planning.md) — module build order and current status
- [conventions.md](conventions.md) — C code and project conventions

### CLI Tools

- [docs/cli/media_ctrl_cli.md](docs/cli/media_ctrl_cli.md) — media device and topology tool
- [docs/cli/v4l2_ctrl_cli.md](docs/cli/v4l2_ctrl_cli.md) — V4L2 camera control tool

## Structure

```
src/modules/     C modules, one directory each
include/         public headers
dev/cli/         CLI driver programs for each module
dev/web/         development web UI (Node.js/Express, depends on protocol)
docs/            documentation
```

## Status

| Module | Status |
|---|---|
| `common` | done |
| `media_ctrl` | done |
| `v4l2_ctrl` | done |
| `serial` | done |
| `transport` | not started |
| `protocol` | not started |
| `frame_alloc` | not started |
| `relay` | not started |
| `ingest` | not started |
| `archive` | not started |
| `codec` | not started |
| `xorg` | not started |
| `web node` | not started |