# ByteTrack Counter C++ — Build Instructions

## Install Dependencies

```bash
apt install -y build-essential cmake libopencv-dev libeigen3-dev libsqlite3-dev
```

| Package | Provides |
|---------|---------|
| `build-essential` | g++, make, libc-dev |
| `cmake` | CMake |
| `libopencv-dev` | OpenCV (core, imgproc, videoio, highgui, imgcodecs) |
| `libeigen3-dev` | Eigen3 linear algebra |
| `libsqlite3-dev` | SQLite3 |

For RKNN NPU support, also install `librknnrt` from your board's SDK.

## Compile

```bash
mkdir -p build && cd build

# Without NPU
cmake .. && make -j$(nproc)

# With RKNN NPU support
cmake .. -DHAS_RKNN=ON && make -j$(nproc)
```

The binary will be generated at `build/bytetrack-counter`.

## Install

```bash
cmake --install . --prefix /opt/bytetrack-counter-cpp/build/install
```