What is the procedure for using ffmpeg to obtain one screenshot from a specific time in a video?

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The procedure for using ffmpeg to obtain one screenshot from a specific time in a video is as follows:

1. Open the terminal or command prompt on your computer.
2. Navigate to the directory where the video file is located using the "cd" command.

3. Type the following command:

   -ss [hh:mm:ss] -i [input_video_file] -vframes 1 [output_image_file]

   Replace [hh:mm:ss] with the specific time in the video where you want to take the screenshot, [inputvideofile] with the name of your video file, and [outputimagefile] with the name you want to give to the screenshot file. For example:

   -ss 00:01:30 -i myvideo.mp4 -vframes 1 screenshot.jpg

4. Press Enter to execute the command. ffmpeg will start processing the video and take a screenshot at the specified time.

5. Once the process is completed, you will find the screenshot file in the same directory where your video file is located.