Is There Any Way to Choose a Thumbnail for Video Upload?
Hello Graph API experts,
I am developing an application where users can upload videos to their walls. Now, is there any way with Graph API to specify which frame (at how many seconds) you want used for generating the videos' thumbnails?
No, neither the frame nor the seconds. You can specify the picture to use via the picture "The URL for the thumbnail picture for the video" property of the video object. See https://developers.facebook.com/blog/post/493/