added readme

README.md

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+# Basic AF IP Camera Recording
+
+## Overview
+Dead-simple IP camera recording with FFmpeg. Chunks the video, deletes old files. No bloat.
+
+## Setup
+
+### 1. Configure `.env`
+Copy `example.env` to `.env`:
+```bash
+cp example.env .env
+```
+
+Edit `.env` as needed:
+```env
+OUTPUT_PATH=/path/to/cathut
+RTSP_URL=rtsp://admin:963852pop@192.168.51.17:554/Streaming/Channels/102
+CHUNK_SIZE=600
+MAX_AGE=720
+```
+
+- **OUTPUT_PATH**: Where video chunks go.
+- **RTSP_URL**: Your camera stream URL.
+- **CHUNK_SIZE**: Video segment length in seconds (default: 600).
+- **MAX_AGE**: Max file age in minutes before deletion (default: 720).
+
+### 2. Make Scripts Executable
+```bash
+chmod +x start_recording.sh cleanup.sh
+```
+
+### 3. Start Recording
+```bash
+./start_recording.sh
+```
+
+### 4. Set Up Cleanup
+Add to cron:
+```bash
+crontab -e
+```
+Add this line:
+```bash
+*/10 * * * * /path/to/cleanup.sh
+```
+
+## Prerequisites
+- FFmpeg installed (`sudo apt install ffmpeg`)
+
+## License
+Do whatever you want.
+
+---