I'm using Core media module to upload video[Media Type is video,which has field video of 'file field type'].
This module will refer video.png as thumnail for all video uploaded from the local system.
I want to capture first frame of video as thumbnail when video is uploaded from the local system in media section. I have seen 'PHP ffmpeg' , module , But i don't know the approach to follow to capture first frame of video. If i need to write a custom module to capture thumnail while saving media type of video, which hook function I need to use or please suggest me what apprach I can follow?