Adobe Premiere Pro CC - Crop a video and export at the exact cropped size I have a video that has 4 up-down-left-right black borders of different sizes.  

I want to get rid of these black borders so the exported file has the exact size of the cropped area.

To do this, I used the "crop" effect (I would have preferred a tool that allows me to set the crop dimensions in pixels, but I guess that's not supported). But then I had a problem when exporting the video:

I'd like to be able to keep a hand on the parameters of the exported video, and ensure that the video will have the exact resolution of the cropped area. But I could not accomplish this.

Can someone tell me how to do this?

EDIT:
My source video is 1002 x 720 (so it's in landscape mode)
It contains a 316 x 562 portion I want to extract  (so, portrait mode)
The minimum I want is to be able to obtain a 316 x 562 video containing just the cropped section. The best I could obtain is a 632 x 1124 (or any other proportional scale) video on output.
I found that using Adobe Media Encoder is much easier when just cropping.
Add the video to the queue and open the export settings.
On the source tab you can crop the video and there you can also enter how many pixels to remove at each side.
Remember to set the correct output size in the video tab on the right side.

Here is a screenshot showing how i did it: