Skip broken cameras on macOS

We can't handle a camera that doesn't provide us any valid vode formats,
so skip those and don't enumerate them.

One such example is the Snap Camera, that doesn't provide a valid
encoding for the video data they are supposed to deliver
(CMVideoFormatDescriptionGetCodecType() returns 0x18 which is not
any valid FourCC code).

Task-number: QTBUG-95186
Change-Id: I19f8500f3ed48ccb689436af10b59ec12c6d26fa
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
(cherry picked from commit 8a7e5ac48156ef2d872f3f27e3cf72379dd7ab0a)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/multimedia/platform/darwin/qdarwinmediadevices.mm b/src/multimedia/platform/darwin/qdarwinmediadevices.mm
index b7bb6e7f9..5ff4b7629 100644
--- a/src/multimedia/platform/darwin/qdarwinmediadevices.mm
+++ b/src/multimedia/platform/darwin/qdarwinmediadevices.mm
@@ -304,6 +304,11 @@ void QDarwinMediaDevices::updateCameraDevices()
             };
             videoFormats << f->create();
         }
+        if (videoFormats.isEmpty()) {
+            // skip broken cameras without valid formats
+            delete info;
+            continue;
+        }
         info->videoFormats = videoFormats;
         info->photoResolutions = photoResolutions.values();