Android: fix video probes when recording the camera.

The preview frame callback is cleared by the Android Camera whenever a
MediaRecorder is set up. We need to reset the callback after starting
the media recorder.

Change-Id: I604320b11eb3a7f6f8d7d3167d5aae371999be14
Reviewed-by: Christian Stromme <christian.stromme@theqtcompany.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/plugins/android/src/mediacapture/qandroidcapturesession.cpp b/src/plugins/android/src/mediacapture/qandroidcapturesession.cpp
index aaad8fd8a..f2ea1b9d7 100644
--- a/src/plugins/android/src/mediacapture/qandroidcapturesession.cpp
+++ b/src/plugins/android/src/mediacapture/qandroidcapturesession.cpp
@@ -233,9 +233,14 @@ void QAndroidCaptureSession::start()
     m_notifyTimer.start();
     updateDuration();
 
-    if (m_cameraSession)
+    if (m_cameraSession) {
         m_cameraSession->setReadyForCapture(false);
 
+        // Preview frame callback is cleared when setting up the camera with the media recorder.
+        // We need to reset it.
+        m_cameraSession->camera()->setupPreviewFrameCallback();
+    }
+
     m_state = QMediaRecorder::RecordingState;
     emit stateChanged(m_state);
 }