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This article introduces the knowledge of "how to achieve Qt RTSP player + video surveillance". Many people will encounter this dilemma in the operation of actual cases, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

I. functional features

Multi-thread real-time playback video stream + local video + USB camera and so on.

Support windows+linux+mac, support ffmpeg3 and ffmpeg4, support 32-bit and 64-bit.

Multi-thread display image, do not card the main interface.

Automatically reconnect the webcam.

The border size can be set, that is, the offset and the border color.

You can set whether to draw OSD tags, that is, label text or pictures and label locations.

There are two OSD locations and styles that can be set.

You can set whether to save to a file and the file name.

You can drag the file directly to the ffmpegwidget control to play.

Supports h365 video streams + rtmp and other common video streams.

Playback can be paused and resumed.

Support for storing individual video files and storing video files at regular intervals.

Customize the top suspension bar and send click signal notification, which can be set whether it is enabled or not.

Can set screen stretch fill or proportional fill.

Programmable decoding is speed priority, quality priority and balanced processing.

You can take screenshots (original pictures) and screenshots of the video.

Video file storage supports naked streaming and MP4 files.

Perfect audio and video synchronization, using external clock synchronization strategy.

Seek is supported to locate the playback position.

Online network audio and video files such as those with the beginning of http and the end of mp3 are supported.

Optional handle mode (GPU drawing), callback mode (QPainter drawing).

GPU drawing mode supports both extruding and proportional drawing.

Qsv, dxva2, d3d11va and other hard decoding are supported.

Combination of hard decoding and GPU, ultra-low CPU footprint, supporting 64 channels of video.

Support Android and embedded linux, just cross-compile.

Second, the effect picture

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