CvVideoCamera (Bug #3443)

Added by Robert Nitsch about 11 years ago. Updated over 9 years ago.

Status:	Open	Start date:	2013-12-18
Priority:	Normal	Due date:
Assignee:	Alexander Shishkov	% Done:	0%
Category:	ios
Target version:	-
Affected version:	2.4.8 (latest release)	Operating System:	iOS
Difficulty:		HW Platform:	ARM
Pull request:

Description

CvVideoCamera does not seem to preserve the aspect ratio of video frames. The current behavior is to scale-to-fit the video frames into the target view. The expected behavior is that of AVLayerVideoGravityResizeAspectFill (https://developer.apple.com/library/iOS/documentation/AVFoundation/Reference/AVFoundation_Constants/Reference/reference.html).

I have attached a minimal sample project which can be used to illustrate the difference between using CvVideoCamera and using AVCaptureSession directly (you will have to comment out the startCamera call and uncomment the AVCaptureSession code).

OpenCV_Camera_Test_2.zip (49.9 kB) Robert Nitsch, 2013-12-18 06:49 pm