Videopack is a WordPress plugin that does a great job by adding several options to any video uploaded to the WordPress Media Library. If your video can be played natively in your browser, or if you have FFMPEG installed on your server (optional), you can generate thumbnails from your video. Using either the “Generate” or “Randomize” buttons will create a selection to choose from. Click “Insert into Post” and you’ll get a flexible, responsive video player.
If you provide multiple H.264 resolutions, Videopack can automatically select the one closest to the size of the player or a resolution of your choice, and provide a button for users to select the resolution manually. If FFMPEG is installed on your server Videopack can make the videos automatically.
By the way ZOZOPLAY has fluidplayer integrated and it’s optional, If you activate it, video-js provided by video pack will be replaced with fluidplayer but this doesn’t mean that you are not able to use thumbnail features via ffmpeg, you can keep activated both and use ffmpeg features as well.