# camera_example

libcamera viewfinder (XRGB8888) → libjpeg-turbo → TCP. One client at a time.

Wire format: `[uint32 BE size][jpeg_bytes]` repeating.

Knobs (fps, quality, AF, lens, port, resolution) are `constexpr` at the top of `camera.cpp`.

## Build on the Pi

```sh
apt install g++ pkg-config libcamera-dev libevent-dev libjpeg-turbo8-dev
make
```

## Receive

```sh
nc <pi-ip> 5000 | ffplay -f mjpeg -
```

## Cross-build (Nix, x86 → armv6l)

```sh
nix build
```

Binary links against `/nix/store` so it only runs on a Pi with Nix installed.
For plain Pi OS: use `make` on the device, or `./deploy.sh user@host` to rsync+build.