add about and license

README.md

@@ -5,7 +5,9 @@ A Qt6-based GUI application for controlling and viewing video streams from camer
 ## Features
 
 - **Video Streaming Control**: Configure and start/stop camera streaming with GStreamer pipelines
-- **Real-time Video Display**: View the streamed video in a separate window
+- **Real-time Video Display**: View the streamed video with embedded display
+- **Image Transformations**: Rotate (0°, 90°, 180°, 270°) and flip (horizontal/vertical) video
+- **Zoom Support**: Zoom from 50% to 200%
 - **Camera Parameter Control**: Adjust exposure, white balance, brightness, contrast, saturation, sharpness, gamma, and gain
 - **Pipeline Presets**: Quick access to common pipeline configurations (MJPEG UDP, H.264 UDP, local display, etc.)
 - **Format Detection**: Automatically fetch and select supported camera formats
@@ -330,7 +332,25 @@ Example commands:
 
 ## License
 
-[Specify your license here]
+**CC BY-NC-SA 4.0** - Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International
+
+Copyright (c) 2025 Maik Jurischka
+
+This software is free to:
+- **Use** for non-commercial purposes
+- **Share** - copy and redistribute in any medium or format
+- **Adapt** - remix, transform, and build upon the material
+
+Under the following terms:
+- **Attribution** - You must give appropriate credit and indicate if changes were made
+- **NonCommercial** - You may not use the material for commercial purposes
+- **ShareAlike** - Derivative works must be distributed under the same license
+
+See [LICENSE](LICENSE) file for full license text.
+
+Full license: https://creativecommons.org/licenses/by-nc-sa/4.0/
+
+**Disclaimer**: This software is provided "as is", without warranty of any kind, express or implied.
 
 ## Credits