QCameraInfo::availableCameras() returns empty list on qtubuntu, works on xcb

[Michael Zanetti]

Based on [1] I've created a small sample app to verify the issue and indeed it seems to be broken. QCameraInfo::availableCameras() returns an empty list on the BQ phone. It works if the same application is run on X11. Attached you'll find the sample app to reproduce. Watch out for the qDebug() print in main.cpp.

[1] https://askubuntu.com/questions/602892/qt-multimedia-doesnt-seem-to-work-on-touch

[Michael Zanetti (mzanetti)]

Also broken in current vivid images.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Alexandr (desniza)]

Confirm, doesn't works on ubuntu 14.04

[J-B Vosteen (bart-jan-bart)]

I tested the example with libqt5multimedia5-plugins installed and it worked.

qtmultimedia5-dev requires libqt5multimedia5-plugins to work correctly.

[Velkan (velkan-s)]

libqt5multimedia5-plugins is in all images by default.

And it still doesn't work on 15.04 OTA-8.5 .

[Florian Boucault (fboucault)]

Implementing that API in qtubuntu-camera requires implementing the following 2 interfaces in our QMediaServiceProviderPlugin:

QMediaServiceSupportedDevicesInterface http://doc.qt.io/qt-5/qmediaservicesupporteddevicesinterface.html
Implementing essentially the following methods:
devices(..)
deviceDescription(..)

QMediaServiceCameraInfoInterface http://doc.qt.io/qt-5/qmediaservicecamerainfointerface.html
Implementing essentially the following methods:
cameraPosition(..)
cameraOrientation(..)

This will require APIs currently unexposed in libhybris to be exposed.

While at it it would be good to fix AalVideoDeviceSelectorControl which hardcodes camera information at the moment.