Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I’m doing some tracking on video files. First I separate frames using ffmpeg and the for each frame i apply a mask and then perform the tracking algorithm.
To make this process faster I’m thinking about reading only the parts I need. like reading the part that I apply the mask or better than that reading boxes around the previous positions of objects. So I’m looking for a way to decode and read a specific part of a specific frame from a video file. Is there any way to do that?
No. Unless you know how every part of decoder (for the encoding that’s used) works.
I would suggest you that you rather use some streaming algorithm – so that you don’t have to store whole pictures from ffmpeg.