Lock the Window orientation while recording in the recorder example

And document the best practice in QMediaPlayer::record().

Change-Id: I3f9c69e869d36e3267a2dd33fa86f0b290541227
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
(cherry picked from commit be6eb6f0c7b0b0bfb036ed268069970c1c9f57dd)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/examples/multimedia/video/recorder/main.qml b/examples/multimedia/video/recorder/main.qml
index 6e32dfc80..c7e625f0e 100644
--- a/examples/multimedia/video/recorder/main.qml
+++ b/examples/multimedia/video/recorder/main.qml
@@ -89,10 +89,14 @@ Window {
         id: recorder
         onRecorderStateChanged:
             (state) => {
-                if (state === MediaRecorder.StoppedState)
+                if (state === MediaRecorder.StoppedState) {
+                    root.contentOrientation = Qt.PrimaryOrientation
                     mediaList.append()
-                else if (state === MediaRecorder.RecordingState && captureSession.camera)
+                } else if (state === MediaRecorder.RecordingState && captureSession.camera) {
+                    // lock orientation while recording and create a preview image
+                    root.contentOrientation = root.screen.orientation;
                     videoOutput.grabToImage(function(res) { mediaList.mediaThumbnail = res.url })
+                }
             }
         onActualLocationChanged: (url) => { mediaList.mediaUrl = url }
         onErrorOccurred: { recorderErrorText.text = recorder.errorString; recorderError.open(); }