how to rotato video frame

[jordanhgl]

hi, I'm developing an app like vine, at start, I use mediaRecorder to record video, but soon I found it not proper to build function like what vine supply, then i found javacv is a good resolution, but now I have a problem, that is after I record video, enter preview page, SurfaceView will display video in landscape orientation(-x direction), its will display in +x direction when I record with front camera, I really don't know where and how to to rotate every frame from camera onPreviewFrame callback, need your help, thanks a lot!

[saudet]

I'd say you should post your questions on the mailing list, but if people use GitHub notifications as mailing list, maybe it'd be appropriate to post them here too. Do you know?

Anyway, the tranpose() function of OpenCV followed by flip() should do what you need.