Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-51911

[Android] QML Camera sometimes flashes flipped image in viewfinder when recording is started or stopped or camera position is changed

    XMLWordPrintable

    Details

    • Platform/s:
      Android
    • Commits:
      ba8127639857232d8a37e953c5cda84203360d97

      Description

      When showing the Camera viewfinder in VideoOutput the image is shortly flipped when recording is started and stopped, or when the camera position (frontface/backface) is changed. It looks like this happens always, but due to timing and other processing it is not always visible. The recorded file is correct - it doesn't contain flipped image at any point.

      When changing the camera position e.g. from frontface to backface, it is the frontface image that is flipped right before the backface viewfinder is shown. Thus the image is flipped around the time when the old camera/viewfinder is released. Interestingly on Nexus 7 the frontface camera image was flipped over horizontal axis while the backface image was flipped over vertical axis.

      This has been seen on Nexus 7, Moto G and Samsung Galaxy Alpha, but there are also devices where this hasn't been seen (not happening or not visible?).

      This can be reproduce on Qt declarative-camera Example when changing camera position. The attached example reproduces this also when recording is stopped.

        Attachments

        No reviews matched the request. Check your Options in the drop-down menu of this sections header.

          Activity

            People

            Assignee:
            ylopes Yoann Lopes
            Reporter:
            qtcomsupport Qt Support
            Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:

                Gerrit Reviews

                There are no open Gerrit changes