Where can I see a video being used by a certain camera?

On iOS, is it possible before the video is recorded to specify to the camera the number of pixels to be used, or some other ways to control for the quality of the images of what you can see?

• Answer:

  Yes. As a developer you have a few sizes to choose from for video capture. You can also do realtime manipulation on each captured video frame returned from iOS to resize it to any size you want. You can also do other things to the image before presenting or saving it: filter the image, sharpen or blur it, manage contrast or put crazy other filters on it. Also deciding in which format to save or stream the video and how compressed the file will be determine the video's quality. All this depends on the CPU being able to handle what you are attempting to do to each frame while recording the video.