LiveRTMP

A simple demo for pushing RTMP stream, using OpenCV + FFmpeg + Qt.
The video/audio source can be from a webcam or RTSP stream.
The RTMP stream destination can be nginx-rtmp, crtmpserver, etc.

Environment Configuration

Visual Studio 2019
Qt 6.7.0

Visual Studio 2019 Qt Plug-in

1. qt-vsaddin-msvc2019-3.0.2.vsix
   https://download.qt.io/official_releases/vsaddin/3.0.2/

2. Setting Qt version in Visual Studio after installation:
   Extensions -> Qt VS Tools -> Qt Versions
   

OpenCV 4.7.0
Use CMake to configure and generate the build files.
Note: Enable WITH_FFMPEG flag.
https://github.com/opencv/opencv/archive/4.7.0.zip

FFmpeg 2023-09-30 win64-gpl-shared
Use release build from here:
https://github.com/BtbN/FFmpeg-Builds/releases

Usage

1. Source from local webcam
   LiveRTMP.exe -camera -output rtmp://192.168.1.126/live

2. Source from RTSP stream
   LiveRTMP.exe -src rtsp://192.168.1.134:8554/webcam.h264 -output rtmp://192.168.1.126/live

The argument after -output points to the RTMP server url.
I use nginx-rtmp as the RTMP server.