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authorPaul Elder <paul.elder@ideasonboard.com>2021-01-21 17:30:59 +0900
committerPaul Elder <paul.elder@ideasonboard.com>2021-01-27 12:06:55 +0900
commite5b6774422b66b4caee544b12c3aea14e3416ded (patch)
treedd4754440c54746ed4b6f92c0904359be2cc9e9a /test/libtest/buffer_source.cpp
parentd81e26d360e649c37a1b859331c3348c7b9089ec (diff)
android: jpeg: exif: Fix setOrientation EXIF values
The input to setOrientation is angle clockwise from the sensor orientation, while the EXIF output values were swapped for 90 and 270 degrees. From the EXIF spec: 6 = The 0th row is the visual right-hand side of the image, and the 0th column is the visual top. 8 = The 0th row is the visual left-hand side of the image, and the 0th column is the visual bottom. 6 should be 90 degrees clockwise, while 8 should 270 degrees clockwise. Fix this. As Android defines the rotation as the clockwise angle by which the image needs to be rotated to appear in the correct orientation on the device screen, the previous values would be correct if the input angle was from the camera orientation. Since the correct input should be the requested JPEG orientation, these new values are the correct ones. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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