I just have the same issue described here: bugreports in nokia. This is marked as duplicate, but the link they provided for the bug doesn't work.
When using QMediaPlayer class and trying to play a video on a N8, the error code -12017 appears with "player->errorString()", working the audio but not the video. I have tried the same code on a N97, and there, it works fine.
Any suggestion to develop a video player that works with N8? Any solution to this problem?
Are there any other possibility to pass some arguments to the system player with QDesktopServices, such as seek to a specific position? This feature it's the only reason to develop a media player in my app, and I suppose that this is only possible building my own player.
Thanks in advance.