Turn portrait video landscape?
I've got a video clip that is somehow in portrait even though it was filmed in landscape, all I need to do is rotate it to be the correct orientation and the video will be fine. There is a half an answer here but it is basically useless because if I do this then I have a correct video but with both sides chopped off and two black bars on the top and bottom and the overall project is still portrait...
How can I fix this?
MacBook Pro, OS X Yosemite (10.10.5), Retina (4th Logic Board)