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A Qt6 RTSP Stream Viewer

2026-07-13 – 11:43

This project is a Qt6 RTSP stream viewer with basic image processing functionality, some motion detection methods and optional FFMPEG recording. This application is using Qt6 VideoSink and QMediaPlayer for playback instead OpenCV::capture.

https://github.com/dennis2society/qt_rtsp_viewer_2

Features

Playback & Multi-Stream

  • Tabbed stream interface – display up to 4 RTSP streams simultaneously
  • Per-stream URL history – persistent, searchable RTSP URL list
  • Per-camera naming – customize display names for each stream
  • Independent playback control – play/pause/stop each stream independently
  • Stream-specific state – each tab maintains its own effect and recording settings
  • Interactive mousewheel zoom – each stream can be zoomed in on a region using your mousewheel!

Image Processing (Real-time, GPU-accelerated where available)

  • Blur (Gaussian, configurable kernel size)
  • Brightness / Contrast adjustment (LUT-accelerated)
  • Colour Temperature correction (warm/cool)
  • Grayscale conversion
  • Motion Detection (contour-based with configurable sensitivity)
  • Motion Vectors (optical flow visualization)
  • Face Detection (Haar cascade, real-time overlay)
  • Motion Graph (sliding grid-based activity level, per-row stacked bars with colour coding)

Recording

  • Manual recording – record any stream on demand
  • Auto-record on motion – start/stop recording automatically when motion exceeds threshold
    • Configurable motion threshold (0–100 %)
    • Configurable stop timeout (1–120 seconds)
    • Automatic filename with timestamp + camera name prefix
  • Codec selection – per-stream choice of H.264 (libx264) or H.265/HEVC (libx265)
  • Raw stream recording – record a stream without re-encoding(and without overlays, requires ffmpeg binary in $PATH)
  • Container format – per-stream choice of MP4, MKV, or AVI
  • Persistent output folder – global recording directory, shared across all streams
  • Optional per-tab output folder

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