QrCodeScannerFilter: Show error message when video frame format is unsupported

Co-authored-by: Melvin Keskin <melvo@olomono.de>
Status Job ID Name Coverage
  Test
passed #12225
clazy

00:00:55

passed #12226
qmllint

00:00:17

 
  Build
passed #12230
archlinux

00:01:17

passed #12229
debian-sid

00:01:04

passed #12228
neon-bionic

00:01:17

passed #12227
ubuntu-trusty

00:01:11

 
  Deploy
passed #12234
allowed to fail
android

00:07:33

failed #12232
allowed to fail
click-xenial

00:00:21

passed #12231
allowed to fail
linux-appimage

00:06:24

passed #12235
allowed to fail
mac-osxcross

00:05:54

passed #12233
allowed to fail
windows-mxe

00:05:18

 
Name Stage Failure
failed
click-xenial Deploy
BUILD_DIR=/builds/lnj/kaidan
*****************************************

Submodule path '3rdparty/breeze-icons': checked out 'b2f9885b87f878043092f70e70ab389340c43a06'
Submodule path '3rdparty/kirigami': checked out '79d70df0628d33f72d6dacf66a46b0f5ee990555'
Submodule path '3rdparty/zxing-cpp': checked out '9e65218d6242af7fc3f2d01cefb29716c3843669'
Building qxmpp
name 'container' is not defined
ERROR: Job failed: exit code 1