Adobe AIR CameraUI photo orientation

Question

Im having some issues some Android devices when trying to take a photo using CameraUI class.

My AIR app is portrait only autoOrients = false, but for some reason, when taking a photo in portrait orientation, the image will return as rotated 90 degrees to the right.

This happens only on Samsung S6, but doesnt for example on HTC M8.

Is there a fix to this problem or is this just one of the eternal bugs in Adobe bugbase?

Is using ANE my best bet to fix this problem?

Answer 1

While this is annoying, it is actually intended functionality. I used the ExifReader class described here to determine the orientation and then rotate it the correct direction before saving the file to disk.

Answer 2

Androids camera images has built in information like GPS location, Orientation and more information named Exchangeable Image File (Exif) . When you capture an image, it will save with those information in the jpg file but the image may save in an unexpected orientation on drive.

So, this the solution:

1- Add an Exif encoder library to your project like this one: https://github.com/cantrell/ExifExample 2- Use something like this function to control the Image orientation after loading the image bytes :

       /**1: normal<br>
        3 rotated 180 degrees (upside down)<br>
        6: rotated 90 degrees CW<br>
        8: rotated 90 degrees CCW<br>
        9: unknown<br>
        */
    public static function getOrientation(ImageBytes:ByteArray):uint
    {
        var exif:ExifInfo = new ExifInfo(ImageBytes);
        if(exif.ifds != null)
        {
            var ifd:IFD = exif.ifds.primary ;
            var str:String = "";
            for (var entry:String in ifd) {
                if(entry == "Orientation"){
                    str = ifd[entry];
                    break;
                }
            }
            return uint(str);
        }
        else
        {
            return 9 ;
        }
    }