Extracting video frames date-time data

C++
1

Hi,
Is it possible to extract date-time of the video file frames while reading them by OpenCv in cpp?
I mean the recording time of the frames.
any help will be appreciated.
Sina

2

no, not possible. you can get the time relative to the 1st frame, though.

if you are recording that video, maybe you can save timestamps in a seperate text file (or make overlays on the images using putText())

at least, you could save the video with a timestamp in the filename, so all you need is offsets from there

3

that’s CAP_PROP_POS_MSEC

or use an actual media library/API such as ffmpeg. that gives you full control over the video data, including all “presentation timestamps” (PTS) as well as any offsets or date/time information that may be contained in the video file.