[support] how to create thumbnail in desired size using FFmpeg for video transcoding

Dear all, I am new to Drupal. I am using video and videoJS modules to upload videos and play them in a D7 website. I am using FFmpeg for transcoding. FFmpeg creates large thumbnails ie in the same size of the video. I want to create a smaller thumbnail. How can i do that? -- with warm regards Sivahari Nandakumar Appropriate Technology Promotion Society Eroor, Vyttila 09446582917 http://sivaharicec.blogspot.com -------------------------------------------------------- fighting for knowledge freedom