According to the AVCaptureDevice documentation, the device must be
locked before starting the capture session to prevent the activeFormat
from being overridden. We now do that, but only if we explicitly set
an activeFormat. Otherwise the device is not locked, which allows
the session to find an appropriate format for the capture device.
The device is also locked when enabling video capture, as doing so
might also reset the activeFormat.
Task-number: QTBUG-49170
Change-Id: I75478fd4bbfec96cd2abd2c3ae2951088b38978e
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@theqtcompany.com>
Image capture resolution and viewfinder resolution must be the same,
with the image capture resolution taking precedence over the viewfinder
resolution when both are explicitly set.
The code was getting the active image capture resolution, instead of
the one explicitly requested, to adjust the viewfinder resolution.
That effectively made the viewfinder resolution always ignored since
the active capture resolution always has a default value.
Task-number: QTBUG-49170
Change-Id: I2f3d01366d83a3e28c0a1ea0109663cfdfa75963
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@theqtcompany.com>
QImageEncoderControl - implementation for AVFoundation plugin (OS X/iOS,
at the moment iOS >= 7.0).
Change-Id: Ibc2c3ae48252dd4698e263f5abca5c328482d5e7
Reviewed-by: Yoann Lopes <yoann.lopes@theqtcompany.com>
