num string A text string to assign to the variable. Syntax SET variable SET variablestring SET 'variablestring' SET 'variable' SET /A 'variableexpression' SET /P variablepromptString SET ' Key variable A new or existing environment variable name e.g. Changes made with SET will remain only for the duration of the current CMD session. I know about CAP_PROP_FPS of course, but that isn't helpful for a VFR, and I know that I can seek to a given timestamp to retrieve a frame with CAP_PROP_POS_MSEC, and of course if I seek within the frozen period I simply receive the same frame over and over until I seek to some timestamp outside the freeze, so OpenCV can give me the frame for each timestamp, but I want to ask how long a given frame should last? If I simply read frames in sequence via read(), I want to know how long each frame should last. Display, set, or remove CMD environment variables. I need to obtain this information during Python CV2 analysis. QT Player knows to pause at that point during playback and MediaInfo can see the min FR. So I know the metadata for the freeze is in there. 23.01.23: - Rebase master branch to Alpine 3.17. 083 FPS, obviously corresponding to the frozen frame of course. You can set any environment variable from a file by using a special prepend FILE. If used unwisely, however, the value of the PATH variable can slow down the operating system by searching too many. Now lets say I want to put that value into a variable.

I want to get video file duration value: mediainfo -InformGeneral Duration/String2 video.mkv 46 min 57 s As you can see it prints 46 min 57 s which is correct. However, the output file got a variable framerate according to Mediainfo: Frame rate mode : Variable Frame rate : 30.000 fps Minimum frame rate : 29.412 fps Maximum frame rate : 30.303 fps. Likewise, MediaInfo reports that the video has a very low minimum frame rate of. Set variable mediainfo windows Invalid locations can also stop services from running altogether, especially the Server service which is usually a dependency for other services within a Windows Server environment.I dont get it. There is this command line tool for MediaInfo that we use to print video file information. The input file has Constant framerate: Frame rate mode: Constant Frame rate : 30.000 fps. I know for a fact that the freeze spans a real window of time during which the camera or camera-to-storage system simple failed to save frames, but thanks for a timecode generator on the camera, the camera is able to label the frozen frame as of long duration spanning the freeze, so that a video player knows to pause at the frozen frame during playback in order to maintain realtime playback. So I'll just use mediainfo to create my json going forwards. I have a video which freezes for a few seconds. From what I learned in this thread, ffprobe probably only looks at the first frame and thus gives an incorrect representation of the overall framerate on certain variable framerate videos (like the sample I attached).