implement QVideoProbe for iOS camera

This commit allows to use QVideoProbe for QCamera on iOS.
The logic for the implementation is taken from the Android plugin.

[ChangeLog][Platform Specific Changes][iOS]
QVideoProbe support is implemented for QCamera on iOS

Change-Id: I1db50defa8518287c4f1f3cc6602881702a95849
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/src/plugins/avfoundation/camera/avfcameraservice.mm b/src/plugins/avfoundation/camera/avfcameraservice.mm
index 25111c5cc..20792000a 100644
--- a/src/plugins/avfoundation/camera/avfcameraservice.mm
+++ b/src/plugins/avfoundation/camera/avfcameraservice.mm
@@ -54,6 +54,7 @@
 #include "avfvideorenderercontrol.h"
 #include "avfmediarecordercontrol.h"
 #include "avfimagecapturecontrol.h"
+#include "avfmediavideoprobecontrol.h"
 
 #include <private/qmediaplaylistnavigator_p.h>
 #include <qmediaplaylist.h>
@@ -119,6 +120,12 @@ QMediaControl *AVFCameraService::requestControl(const char *name)
     if (qstrcmp(name, QCameraImageCaptureControl_iid) == 0)
         return m_imageCaptureControl;
 
+    if (qstrcmp(name,QMediaVideoProbeControl_iid) == 0) {
+        AVFMediaVideoProbeControl *videoProbe = 0;
+        videoProbe = new AVFMediaVideoProbeControl(this);
+        m_session->addProbe(videoProbe);
+        return videoProbe;
+    }
     if (!m_videoOutput) {
         if (qstrcmp(name, QVideoRendererControl_iid) == 0)
             m_videoOutput = new AVFVideoRendererControl(this);
@@ -139,6 +146,13 @@ void AVFCameraService::releaseControl(QMediaControl *control)
         m_session->setVideoOutput(0);
         delete control;
     }
+    AVFMediaVideoProbeControl *videoProbe = qobject_cast<AVFMediaVideoProbeControl *>(control);
+    if (videoProbe) {
+        m_session->removeProbe(videoProbe);
+        delete videoProbe;
+        return;
+    }
+
 }
 
 #include "moc_avfcameraservice.cpp"