A simple C++ Linux program that demonstrates using libavutil to extract frames from a video.

I need a simple C++ Linux program that demonstrates using libavutil to extract frames from a video file, resize them and save them to disk. The Input of the program: 1. A folder name – a folder in which there will be M video files. 2. N – The number of worker threads that will run on the system. Note: N could be different then M The program needs to: 1. Go over the folder and for each video file in the folder: a. Send the video to one of the N workers b. Each worker will: i. Split the video file into image frames ii. Resize each of the frames iii. Write the resized frame to disk iv. Return the worker process time 2. Print the total processing time of all the workers The program needs to be written in C++ Linux, needs to run on Ubuntu 16.04 , needs to use libavutil , libswscale etc.