title: Is there any video loader library like there is image library like image loaders that can load videos faster
body: <p>I am developing app that has a feature like "save offline" feature in youtube,
  i have encrypted videos with cipher and saved it inside files folder.
  now when i retrieve the videos it takes time to decrypt back and to show to users.
  so is there any library or is there something else that can make my encrypt-decrypt process faster or load videos instantly that use have saved offline.</p>