May I ask if it has the same functionality as OpenCV Grab()

[140ai]

May I ask if it has the same functionality as OpenCV Grab()？

another question.
When I install in Windows, the following error appears. How should I modify it

fatal error C1083: 无法打开包括文件: “libavformat/avformat.h”: No such file or directory

[BykadorovR]

Hi, seems like you have the wrong installation of FFmpeg, because libavformat/avformat.h is a part of FFmpeg.
Refarding OpenCV Grab() I can't help, unfortunately, because I'm not aware of Grab() functionality.