Remove QAudioProbe and QVideoProbe

They worked very inconsistently between platforms (or not at all)
and made the implementation quite a bit more complex.

Longer term they will get replaced by adding the possibility
to have multiple audio/video outputs and implementing monitoring
output classes that can deliver QAudioBuffers and QVideoFrames to
the app.

Change-Id: Ic5b4506e7392d352d33b51f01ff0d5169d7b5129
Reviewed-by: Doris Verria <doris.verria@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

47 files changed, 56 insertions, 1549 deletions

diff --git a/src/multimedia/platform/android/mediacapture/mediacapture.pri b/src/multimedia/platform/android/mediacapture/mediacapture.pri
index 5f39c8b9e..8a6959d94 100644
--- a/src/multimedia/platform/android/mediacapture/mediacapture.pri
+++ b/src/multimedia/platform/android/mediacapture/mediacapture.pri
@@ -14,7 +14,6 @@ SOURCES += \
     $$PWD/qandroidaudioencodersettingscontrol.cpp \
     $$PWD/qandroidmediacontainercontrol.cpp \
     $$PWD/qandroidvideoencodersettingscontrol.cpp \
-    $$PWD/qandroidmediavideoprobecontrol.cpp \
     $$PWD/qandroidcameravideorenderercontrol.cpp
 
 HEADERS += \
@@ -31,5 +30,4 @@ HEADERS += \
     $$PWD/qandroidaudioencodersettingscontrol_p.h \
     $$PWD/qandroidmediacontainercontrol_p.h \
     $$PWD/qandroidvideoencodersettingscontrol_p.h \
-    $$PWD/qandroidmediavideoprobecontrol_p.h \
     $$PWD/qandroidcameravideorenderercontrol_p.h
diff --git a/src/multimedia/platform/android/mediacapture/qandroidcamerasession.cpp b/src/multimedia/platform/android/mediacapture/qandroidcamerasession.cpp
index a9829ce4b..3172ba7fd 100644
--- a/src/multimedia/platform/android/mediacapture/qandroidcamerasession.cpp
+++ b/src/multimedia/platform/android/mediacapture/qandroidcamerasession.cpp
@@ -43,7 +43,6 @@
 #include "androidcamera_p.h"
 #include "androidmultimediautils_p.h"
 #include "qandroidvideooutput_p.h"
-#include "qandroidmediavideoprobecontrol_p.h"
 #include "qandroidmultimediautils_p.h"
 #include "qandroidcameravideorenderercontrol_p.h"
 #include <qabstractvideosurface.h>
@@ -207,7 +206,7 @@ bool QAndroidCameraSession::open()
         if (m_camera->getPreviewFormat() != AndroidCamera::NV21)
             m_camera->setPreviewFormat(AndroidCamera::NV21);
 
-        m_camera->notifyNewFrames(m_videoProbes.count() || m_previewCallback);
+        m_camera->notifyNewFrames(m_previewCallback);
 
         emit opened();
         emit statusChanged(m_status);
@@ -530,25 +529,6 @@ int QAndroidCameraSession::currentCameraRotation() const
     return rotation;
 }
 
-void QAndroidCameraSession::addProbe(QAndroidMediaVideoProbeControl *probe)
-{
-    m_videoProbesMutex.lock();
-    if (probe)
-        m_videoProbes << probe;
-    if (m_camera)
-        m_camera->notifyNewFrames(m_videoProbes.count() || m_previewCallback);
-    m_videoProbesMutex.unlock();
-}
-
-void QAndroidCameraSession::removeProbe(QAndroidMediaVideoProbeControl *probe)
-{
-    m_videoProbesMutex.lock();
-    m_videoProbes.remove(probe);
-    if (m_camera)
-        m_camera->notifyNewFrames(m_videoProbes.count() || m_previewCallback);
-    m_videoProbesMutex.unlock();
-}
-
 void QAndroidCameraSession::setPreviewFormat(AndroidCamera::ImageFormat format)
 {
     if (format == AndroidCamera::UnknownImageFormat)
@@ -559,11 +539,11 @@ void QAndroidCameraSession::setPreviewFormat(AndroidCamera::ImageFormat format)
 
 void QAndroidCameraSession::setPreviewCallback(PreviewCallback *callback)
 {
-    m_videoProbesMutex.lock();
+    m_videoFrameCallbackMutex.lock();
     m_previewCallback = callback;
     if (m_camera)
-        m_camera->notifyNewFrames(m_videoProbes.count() || m_previewCallback);
-    m_videoProbesMutex.unlock();
+        m_camera->notifyNewFrames(m_previewCallback);
+    m_videoFrameCallbackMutex.unlock();
 }
 
 void QAndroidCameraSession::applyImageSettings()
@@ -754,15 +734,12 @@ void QAndroidCameraSession::onNewPreviewFrame(const QVideoFrame &frame)
     if (!m_camera)
         return;
 
-    m_videoProbesMutex.lock();
-
-    for (QAndroidMediaVideoProbeControl *probe : qAsConst(m_videoProbes))
-        probe->newFrameProbed(frame);
+    m_videoFrameCallbackMutex.lock();
 
     if (m_previewCallback)
         m_previewCallback->onFrameAvailable(frame);
 
-    m_videoProbesMutex.unlock();
+    m_videoFrameCallbackMutex.unlock();
 }
 
 void QAndroidCameraSession::onCameraPictureCaptured(const QByteArray &data)
diff --git a/src/multimedia/platform/android/mediacapture/qandroidcamerasession_p.h b/src/multimedia/platform/android/mediacapture/qandroidcamerasession_p.h
index 2aacad58f..cd2382987 100644
--- a/src/multimedia/platform/android/mediacapture/qandroidcamerasession_p.h
+++ b/src/multimedia/platform/android/mediacapture/qandroidcamerasession_p.h
@@ -63,7 +63,6 @@
 QT_BEGIN_NAMESPACE
 
 class QAndroidVideoOutput;
-class QAndroidMediaVideoProbeControl;
 
 class QAndroidCameraSession : public QObject
 {
@@ -113,9 +112,6 @@ public:
 
     int currentCameraRotation() const;
 
-    void addProbe(QAndroidMediaVideoProbeControl *probe);
-    void removeProbe(QAndroidMediaVideoProbeControl *probe);
-
     void setPreviewFormat(AndroidCamera::ImageFormat format);
 
     struct PreviewCallback
@@ -205,8 +201,7 @@ private:
 
     QMediaStorageLocation m_mediaStorageLocation;
 
-    QSet<QAndroidMediaVideoProbeControl *> m_videoProbes;
-    QMutex m_videoProbesMutex;
+    QMutex m_videoFrameCallbackMutex;
     PreviewCallback *m_previewCallback;
     bool m_keepActive;
 };
diff --git a/src/multimedia/platform/android/mediacapture/qandroidcaptureservice.cpp b/src/multimedia/platform/android/mediacapture/qandroidcaptureservice.cpp
index fbcfa3d76..bbd69ff49 100644
--- a/src/multimedia/platform/android/mediacapture/qandroidcaptureservice.cpp
+++ b/src/multimedia/platform/android/mediacapture/qandroidcaptureservice.cpp
@@ -53,7 +53,6 @@
 #include "qandroidaudioencodersettingscontrol_p.h"
 #include "qandroidvideoencodersettingscontrol_p.h"
 #include "qandroidmediacontainercontrol_p.h"
-#include "qandroidmediavideoprobecontrol_p.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -145,15 +144,6 @@ QObject *QAndroidCaptureService::requestControl(const char *name)
         return m_videoRendererControl;
     }
 
-    if (qstrcmp(name,QMediaVideoProbeControl_iid) == 0) {
-        QAndroidMediaVideoProbeControl *videoProbe = 0;
-        if (m_cameraSession) {
-            videoProbe = new QAndroidMediaVideoProbeControl(this);
-            m_cameraSession->addProbe(videoProbe);
-        }
-        return videoProbe;
-    }
-
     return 0;
 }
 
@@ -165,14 +155,6 @@ void QAndroidCaptureService::releaseControl(QObject *control)
             m_videoRendererControl = 0;
             return;
         }
-
-        QAndroidMediaVideoProbeControl *videoProbe = qobject_cast<QAndroidMediaVideoProbeControl *>(control);
-        if (videoProbe) {
-            if (m_cameraSession)
-                m_cameraSession->removeProbe(videoProbe);
-            delete videoProbe;
-            return;
-        }
     }
 
 }
diff --git a/src/multimedia/platform/android/mediacapture/qandroidmediavideoprobecontrol.cpp b/src/multimedia/platform/android/mediacapture/qandroidmediavideoprobecontrol.cpp
deleted file mode 100644
index 86321271a..000000000
--- a/src/multimedia/platform/android/mediacapture/qandroidmediavideoprobecontrol.cpp
+++ /dev/null
@@ -1,61 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Copyright (C) 2016 Integrated Computer Solutions, Inc
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qandroidmediavideoprobecontrol_p.h"
-#include <qvideoframe.h>
-
-QT_BEGIN_NAMESPACE
-
-QAndroidMediaVideoProbeControl::QAndroidMediaVideoProbeControl(QObject *parent) :
-    QMediaVideoProbeControl(parent)
-{
-}
-
-QAndroidMediaVideoProbeControl::~QAndroidMediaVideoProbeControl()
-{
-
-}
-
-void QAndroidMediaVideoProbeControl::newFrameProbed(const QVideoFrame &frame)
-{
-    emit videoFrameProbed(frame);
-}
-
-QT_END_NAMESPACE
diff --git a/src/multimedia/platform/android/mediacapture/qandroidmediavideoprobecontrol_p.h b/src/multimedia/platform/android/mediacapture/qandroidmediavideoprobecontrol_p.h
deleted file mode 100644
index 324370e97..000000000
--- a/src/multimedia/platform/android/mediacapture/qandroidmediavideoprobecontrol_p.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Copyright (C) 2016 Integrated Computer Solutions, Inc
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QANDROIDMEDIAVIDEOPROBECONTROL_H
-#define QANDROIDMEDIAVIDEOPROBECONTROL_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <qmediavideoprobecontrol.h>
-
-QT_BEGIN_NAMESPACE
-
-class QAndroidMediaVideoProbeControl : public QMediaVideoProbeControl
-{
-    Q_OBJECT
-public:
-    explicit QAndroidMediaVideoProbeControl(QObject *parent = 0);
-    virtual ~QAndroidMediaVideoProbeControl();
-
-    void newFrameProbed(const QVideoFrame& frame);
-
-};
-
-QT_END_NAMESPACE
-
-#endif // QANDROIDMEDIAVIDEOPROBECONTROL_H
diff --git a/src/multimedia/platform/android/mediaplayer/qandroidmediaservice_p.h b/src/multimedia/platform/android/mediaplayer/qandroidmediaservice_p.h
index 24ecc7aab..2a238e676 100644
--- a/src/multimedia/platform/android/mediaplayer/qandroidmediaservice_p.h
+++ b/src/multimedia/platform/android/mediaplayer/qandroidmediaservice_p.h
@@ -73,10 +73,6 @@ public:
     QMediaPlayerControl *player() override;
     QMetaDataReaderControl *dataReader() override;
 //    QMediaStreamsControl *streams() override;
-//    QMediaVideoProbeControl *videoProbe() override;
-//    void releaseVideoProbe(QMediaVideoProbeControl *) override;
-//    QMediaAudioProbeControl *audioProbe() override;
-//    void releaseAudioProbe(QMediaAudioProbeControl *) override;
 
     QVideoRendererControl *createVideoRenderer() override;
 //    QVideoWindowControl *createVideoWindow() override;;
diff --git a/src/multimedia/platform/darwin/camera/avfcamerarenderercontrol.mm b/src/multimedia/platform/darwin/camera/avfcamerarenderercontrol.mm
index 13131766c..f04b0af41 100644
--- a/src/multimedia/platform/darwin/camera/avfcamerarenderercontrol.mm
+++ b/src/multimedia/platform/darwin/camera/avfcamerarenderercontrol.mm
@@ -349,9 +349,6 @@ void AVFCameraRendererControl::syncHandleViewfinderFrame(const QVideoFrame &fram
     }
 
     m_lastViewfinderFrame = frame;
-
-    if (m_cameraSession && m_lastViewfinderFrame.isValid())
-        m_cameraSession->onCameraFrameFetched(m_lastViewfinderFrame);
 }
 
 AVCaptureVideoDataOutput *AVFCameraRendererControl::videoDataOutput() const
diff --git a/src/multimedia/platform/darwin/camera/avfcameraservice.mm b/src/multimedia/platform/darwin/camera/avfcameraservice.mm
index ca2b31142..a536889cb 100644
--- a/src/multimedia/platform/darwin/camera/avfcameraservice.mm
+++ b/src/multimedia/platform/darwin/camera/avfcameraservice.mm
@@ -49,7 +49,6 @@
 #include "avfcamerarenderercontrol_p.h"
 #include "avfmediarecordercontrol_p.h"
 #include "avfimagecapturecontrol_p.h"
-#include "avfmediavideoprobecontrol_p.h"
 #include "avfcamerafocuscontrol_p.h"
 #include "avfcameraexposurecontrol_p.h"
 #include "avfimageencodercontrol_p.h"
@@ -162,13 +161,6 @@ QObject *AVFCameraService::requestControl(const char *name)
     if (qstrcmp(name, QMediaContainerControl_iid) == 0)
         return m_mediaContainerControl;
 
-    if (qstrcmp(name,QMediaVideoProbeControl_iid) == 0) {
-        AVFMediaVideoProbeControl *videoProbe = nullptr;
-        videoProbe = new AVFMediaVideoProbeControl(this);
-        m_session->addProbe(videoProbe);
-        return videoProbe;
-    }
-
     if (!m_captureWindowControl) {
         if (qstrcmp(name, QVideoWindowControl_iid) == 0) {
             m_captureWindowControl = new AVFCameraWindowControl(this);
@@ -192,11 +184,7 @@ QObject *AVFCameraService::requestControl(const char *name)
 
 void AVFCameraService::releaseControl(QObject *control)
 {
-    AVFMediaVideoProbeControl *videoProbe = qobject_cast<AVFMediaVideoProbeControl *>(control);
-    if (videoProbe) {
-        m_session->removeProbe(videoProbe);
-        delete videoProbe;
-    } else if (m_videoOutput == control) {
+    if (m_videoOutput == control) {
         m_session->setVideoOutput(nullptr);
         delete m_videoOutput;
         m_videoOutput = nullptr;
diff --git a/src/multimedia/platform/darwin/camera/avfcamerasession.mm b/src/multimedia/platform/darwin/camera/avfcamerasession.mm
index cc7201a7d..aef0321f5 100644
--- a/src/multimedia/platform/darwin/camera/avfcamerasession.mm
+++ b/src/multimedia/platform/darwin/camera/avfcamerasession.mm
@@ -42,7 +42,6 @@
 #include "avfcameraservice_p.h"
 #include "avfcameracontrol_p.h"
 #include "avfcamerarenderercontrol_p.h"
-#include "avfmediavideoprobecontrol_p.h"
 #include "avfimageencodercontrol_p.h"
 #include "avfcamerautility_p.h"
 #include "avfcamerawindowcontrol_p.h"
@@ -385,21 +384,6 @@ bool AVFCameraSession::applyViewfinderSettings()
     return false;
 }
 
-void AVFCameraSession::addProbe(AVFMediaVideoProbeControl *probe)
-{
-    m_videoProbesMutex.lock();
-    if (probe)
-        m_videoProbes << probe;
-    m_videoProbesMutex.unlock();
-}
-
-void AVFCameraSession::removeProbe(AVFMediaVideoProbeControl *probe)
-{
-    m_videoProbesMutex.lock();
-    m_videoProbes.remove(probe);
-    m_videoProbesMutex.unlock();
-}
-
 FourCharCode AVFCameraSession::defaultCodec()
 {
     if (!m_defaultCodec) {
@@ -413,17 +397,4 @@ FourCharCode AVFCameraSession::defaultCodec()
     return m_defaultCodec;
 }
 
-void AVFCameraSession::onCameraFrameFetched(const QVideoFrame &frame)
-{
-    Q_EMIT newViewfinderFrame(frame);
-
-    m_videoProbesMutex.lock();
-    QSet<AVFMediaVideoProbeControl *>::const_iterator i = m_videoProbes.constBegin();
-    while (i != m_videoProbes.constEnd()) {
-        (*i)->newFrameProbed(frame);
-        ++i;
-    }
-    m_videoProbesMutex.unlock();
-}
-
 #include "moc_avfcamerasession_p.cpp"
diff --git a/src/multimedia/platform/darwin/camera/avfcamerasession_p.h b/src/multimedia/platform/darwin/camera/avfcamerasession_p.h
index 584bd9b1b..d1a61ee81 100644
--- a/src/multimedia/platform/darwin/camera/avfcamerasession_p.h
+++ b/src/multimedia/platform/darwin/camera/avfcamerasession_p.h
@@ -65,7 +65,6 @@ QT_BEGIN_NAMESPACE
 class AVFCameraControl;
 class AVFCameraService;
 class AVFCameraRendererControl;
-class AVFMediaVideoProbeControl;
 class AVFCameraWindowControl;
 
 struct AVFCameraInfo
@@ -98,8 +97,6 @@ public:
     QCamera::State requestedState() const { return m_state; }
     bool isActive() const { return m_active; }
 
-    void addProbe(AVFMediaVideoProbeControl *probe);
-    void removeProbe(AVFMediaVideoProbeControl *probe);
     FourCharCode defaultCodec();
 
     AVCaptureDeviceInput *videoInput() const {return m_videoInput;}
@@ -113,8 +110,6 @@ public Q_SLOTS:
 
     void onCaptureModeChanged(QCamera::CaptureModes mode);
 
-    void onCameraFrameFetched(const QVideoFrame &frame);
-
 Q_SIGNALS:
     void readyToConfigureConnections();
     void stateChanged(QCamera::State newState);
@@ -142,9 +137,6 @@ private:
     AVCaptureDeviceInput *m_videoInput;
     AVFCameraSessionObserver *m_observer;
 
-    QSet<AVFMediaVideoProbeControl *> m_videoProbes;
-    QMutex m_videoProbesMutex;
-
     FourCharCode m_defaultCodec;
 };
 
diff --git a/src/multimedia/platform/darwin/camera/avfmediavideoprobecontrol.mm b/src/multimedia/platform/darwin/camera/avfmediavideoprobecontrol.mm
deleted file mode 100644
index c97ab1919..000000000
--- a/src/multimedia/platform/darwin/camera/avfmediavideoprobecontrol.mm
+++ /dev/null
@@ -1,61 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies).
-** Copyright (C) 2016 Integrated Computer Solutions, Inc
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "avfmediavideoprobecontrol_p.h"
-#include <qvideoframe.h>
-
-QT_BEGIN_NAMESPACE
-
-AVFMediaVideoProbeControl::AVFMediaVideoProbeControl(QObject *parent) :
-    QMediaVideoProbeControl(parent)
-{
-}
-
-AVFMediaVideoProbeControl::~AVFMediaVideoProbeControl()
-{
-
-}
-
-void AVFMediaVideoProbeControl::newFrameProbed(const QVideoFrame &frame)
-{
-    Q_EMIT videoFrameProbed(frame);
-}
-
-QT_END_NAMESPACE
diff --git a/src/multimedia/platform/darwin/camera/avfmediavideoprobecontrol_p.h b/src/multimedia/platform/darwin/camera/avfmediavideoprobecontrol_p.h
deleted file mode 100644
index c18bc4181..000000000
--- a/src/multimedia/platform/darwin/camera/avfmediavideoprobecontrol_p.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef AVFMEDIAVIDEOPROBECONTROL_H
-#define AVFMEDIAVIDEOPROBECONTROL_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <qmediavideoprobecontrol.h>
-
-QT_BEGIN_NAMESPACE
-
-class AVFMediaVideoProbeControl : public QMediaVideoProbeControl
-{
-    Q_OBJECT
-public:
-    explicit AVFMediaVideoProbeControl(QObject *parent = nullptr);
-    ~AVFMediaVideoProbeControl();
-
-    void newFrameProbed(const QVideoFrame& frame);
-
-};
-
-QT_END_NAMESPACE
-
-#endif // AVFMEDIAVIDEOPROBECONTROL_H
diff --git a/src/multimedia/platform/darwin/camera/camera.pri b/src/multimedia/platform/darwin/camera/camera.pri
index 9c1404c78..16953d07a 100644
--- a/src/multimedia/platform/darwin/camera/camera.pri
+++ b/src/multimedia/platform/darwin/camera/camera.pri
@@ -6,7 +6,6 @@ HEADERS += \
     $$PWD/avfcameraservice_p.h \
     $$PWD/avfcamerasession_p.h \
     $$PWD/avfstoragelocation_p.h \
-    $$PWD/avfmediavideoprobecontrol_p.h \
     $$PWD/avfcamerarenderercontrol_p.h \
     $$PWD/avfcamerafocuscontrol_p.h \
     $$PWD/avfcameraexposurecontrol_p.h \
@@ -24,7 +23,6 @@ SOURCES += \
     $$PWD/avfcameraservice.mm \
     $$PWD/avfcamerasession.mm \
     $$PWD/avfstoragelocation.mm \
-    $$PWD/avfmediavideoprobecontrol.mm \
     $$PWD/avfcamerarenderercontrol.mm \
     $$PWD/avfcamerafocuscontrol.mm \
     $$PWD/avfcameraexposurecontrol.mm \
diff --git a/src/multimedia/platform/darwin/mediaplayer/avfmediaplayerservice_p.h b/src/multimedia/platform/darwin/mediaplayer/avfmediaplayerservice_p.h
index 927726cc3..f37c1e50f 100644
--- a/src/multimedia/platform/darwin/mediaplayer/avfmediaplayerservice_p.h
+++ b/src/multimedia/platform/darwin/mediaplayer/avfmediaplayerservice_p.h
@@ -73,10 +73,6 @@ public:
     QMediaPlayerControl *player() override;
     QMetaDataReaderControl *dataReader() override;
 //    QMediaStreamsControl *streams() override;
-//    QMediaVideoProbeControl *videoProbe() override;
-//    void releaseVideoProbe(QMediaVideoProbeControl *) override;
-//    QMediaAudioProbeControl *audioProbe() override;
-//    void releaseAudioProbe(QMediaAudioProbeControl *) override;
 
     QVideoRendererControl *createVideoRenderer() override;
     QVideoWindowControl *createVideoWindow() override;;
diff --git a/src/multimedia/platform/gstreamer/camerabin/camerabinservice.cpp b/src/multimedia/platform/gstreamer/camerabin/camerabinservice.cpp
index f759aa83d..131ab36cd 100644
--- a/src/multimedia/platform/gstreamer/camerabin/camerabinservice.cpp
+++ b/src/multimedia/platform/gstreamer/camerabin/camerabinservice.cpp
@@ -116,9 +116,6 @@ QObject *CameraBinService::requestControl(const char *name)
         }
     }
 
-    if (qstrcmp(name, QMediaVideoProbeControl_iid) == 0)
-        return m_captureSession->videoProbe();
-
     if (qstrcmp(name,QMediaRecorderControl_iid) == 0)
         return m_captureSession->recorderControl();
 
diff --git a/src/multimedia/platform/gstreamer/camerabin/camerabinsession.cpp b/src/multimedia/platform/gstreamer/camerabin/camerabinsession.cpp
index 2450bad0c..84113ec85 100644
--- a/src/multimedia/platform/gstreamer/camerabin/camerabinsession.cpp
+++ b/src/multimedia/platform/gstreamer/camerabin/camerabinsession.cpp
@@ -713,7 +713,7 @@ QCameraViewfinderSettings CameraBinSession::viewfinderSettings() const
 
 void CameraBinSession::ViewfinderProbe::probeCaps(GstCaps *caps)
 {
-    QGstreamerVideoProbeControl::probeCaps(caps);
+    QGstreamerBufferProbe::probeCaps(caps);
 
     // Update actual viewfinder settings on viewfinder caps change
     const GstStructure *s = gst_caps_get_structure(caps, 0);
@@ -1114,11 +1114,6 @@ bool CameraBinSession::processBusMessage(const QGstreamerMessage &message)
     return false;
 }
 
-QGstreamerVideoProbeControl *CameraBinSession::videoProbe()
-{
-    return &m_viewfinderProbe;
-}
-
 QString CameraBinSession::currentContainerFormat() const
 {
     if (!m_muxer)
diff --git a/src/multimedia/platform/gstreamer/camerabin/camerabinsession_p.h b/src/multimedia/platform/gstreamer/camerabin/camerabinsession_p.h
index 8d9634146..27cedc59c 100644
--- a/src/multimedia/platform/gstreamer/camerabin/camerabinsession_p.h
+++ b/src/multimedia/platform/gstreamer/camerabin/camerabinsession_p.h
@@ -63,7 +63,7 @@
 #endif
 
 #include <private/qgstreamerbushelper_p.h>
-#include <private/qgstreamervideoprobecontrol_p.h>
+#include <private/qgstreamerbufferprobe_p.h>
 #include <private/qmediastoragelocation_p.h>
 #include "qcamera.h"
 
@@ -171,8 +171,6 @@ public:
     bool processSyncMessage(const QGstreamerMessage &message) override;
     bool processBusMessage(const QGstreamerMessage &message) override;
 
-    QGstreamerVideoProbeControl *videoProbe();
-
 signals:
     void statusChanged(QCamera::Status status);
     void pendingStateChanged(QCamera::State state);
@@ -260,11 +258,10 @@ private:
     bool m_inputDeviceHasChanged;
     bool m_usingWrapperCameraBinSrc;
 
-    class ViewfinderProbe : public QGstreamerVideoProbeControl {
+    class ViewfinderProbe : public QGstreamerBufferProbe {
     public:
         ViewfinderProbe(CameraBinSession *s)
-            : QGstreamerVideoProbeControl(s)
-            , session(s)
+            : session(s)
         {}
 
         void probeCaps(GstCaps *caps) override;
diff --git a/src/multimedia/platform/gstreamer/common/common.pri b/src/multimedia/platform/gstreamer/common/common.pri
index 785fcecf4..3fe902b51 100644
--- a/src/multimedia/platform/gstreamer/common/common.pri
+++ b/src/multimedia/platform/gstreamer/common/common.pri
@@ -8,8 +8,6 @@ HEADERS += \
     $$PWD/qgstreamervideorendererinterface_p.h \
     $$PWD/qgstreamervideorenderer_p.h \
     $$PWD/qgstcodecsinfo_p.h \
-    $$PWD/qgstreamervideoprobecontrol_p.h \
-    $$PWD/qgstreameraudioprobecontrol_p.h \
     $$PWD/qgstreamervideowindow_p.h \
     $$PWD/qgstreamervideooverlay_p.h \
     $$PWD/qgstreamerplayersession_p.h \
@@ -27,8 +25,6 @@ SOURCES += \
     $$PWD/qgstreamervideorendererinterface.cpp \
     $$PWD/qgstreamervideorenderer.cpp \
     $$PWD/qgstcodecsinfo.cpp \
-    $$PWD/qgstreamervideoprobecontrol.cpp \
-    $$PWD/qgstreameraudioprobecontrol.cpp \
     $$PWD/qgstreamervideowindow.cpp \
     $$PWD/qgstreamervideooverlay.cpp \
     $$PWD/qgstreamerplayersession.cpp \
diff --git a/src/multimedia/platform/gstreamer/common/qgstreameraudioprobecontrol.cpp b/src/multimedia/platform/gstreamer/common/qgstreameraudioprobecontrol.cpp
deleted file mode 100644
index 8b0415bde..000000000
--- a/src/multimedia/platform/gstreamer/common/qgstreameraudioprobecontrol.cpp
+++ /dev/null
@@ -1,97 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qgstreameraudioprobecontrol_p.h"
-#include <private/qgstutils_p.h>
-
-QGstreamerAudioProbeControl::QGstreamerAudioProbeControl(QObject *parent)
-    : QMediaAudioProbeControl(parent)
-{
-}
-
-QGstreamerAudioProbeControl::~QGstreamerAudioProbeControl()
-{
-}
-
-void QGstreamerAudioProbeControl::probeCaps(GstCaps *caps)
-{
-    QAudioFormat format = QGstUtils::audioFormatForCaps(caps);
-
-    QMutexLocker locker(&m_bufferMutex);
-    m_format = format;
-}
-
-bool QGstreamerAudioProbeControl::probeBuffer(GstBuffer *buffer)
-{
-    qint64 position = GST_BUFFER_TIMESTAMP(buffer);
-    position = position >= 0
-            ? position / G_GINT64_CONSTANT(1000) // microseconds
-            : -1;
-
-    QByteArray data;
-    GstMapInfo info;
-    if (gst_buffer_map(buffer, &info, GST_MAP_READ)) {
-        data = QByteArray(reinterpret_cast<const char *>(info.data), info.size);
-        gst_buffer_unmap(buffer, &info);
-    } else {
-        return true;
-    }
-
-    QMutexLocker locker(&m_bufferMutex);
-    if (m_format.isValid()) {
-        if (!m_pendingBuffer.isValid())
-            QMetaObject::invokeMethod(this, "bufferProbed", Qt::QueuedConnection);
-        m_pendingBuffer = QAudioBuffer(data, m_format, position);
-    }
-
-    return true;
-}
-
-void QGstreamerAudioProbeControl::bufferProbed()
-{
-    QAudioBuffer audioBuffer;
-    {
-        QMutexLocker locker(&m_bufferMutex);
-        if (!m_pendingBuffer.isValid())
-            return;
-        audioBuffer = m_pendingBuffer;
-        m_pendingBuffer = QAudioBuffer();
-    }
-    emit audioBufferProbed(audioBuffer);
-}
diff --git a/src/multimedia/platform/gstreamer/common/qgstreameraudioprobecontrol_p.h b/src/multimedia/platform/gstreamer/common/qgstreameraudioprobecontrol_p.h
deleted file mode 100644
index b641929cd..000000000
--- a/src/multimedia/platform/gstreamer/common/qgstreameraudioprobecontrol_p.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QGSTREAMERAUDIOPROBECONTROL_H
-#define QGSTREAMERAUDIOPROBECONTROL_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <private/qtmultimediaglobal_p.h>
-#include <gst/gst.h>
-#include <qmediaaudioprobecontrol.h>
-#include <QtCore/qmutex.h>
-#include <qaudiobuffer.h>
-#include <qshareddata.h>
-
-#include <private/qgstreamerbufferprobe_p.h>
-
-QT_BEGIN_NAMESPACE
-
-class Q_MULTIMEDIA_EXPORT QGstreamerAudioProbeControl
-    : public QMediaAudioProbeControl
-    , public QGstreamerBufferProbe
-    , public QSharedData
-{
-    Q_OBJECT
-public:
-    explicit QGstreamerAudioProbeControl(QObject *parent);
-    virtual ~QGstreamerAudioProbeControl();
-
-protected:
-    void probeCaps(GstCaps *caps) override;
-    bool probeBuffer(GstBuffer *buffer) override;
-
-private slots:
-    void bufferProbed();
-
-private:
-    QAudioBuffer m_pendingBuffer;
-    QAudioFormat m_format;
-    QMutex m_bufferMutex;
-};
-
-QT_END_NAMESPACE
-
-#endif // QGSTREAMERAUDIOPROBECONTROL_H
diff --git a/src/multimedia/platform/gstreamer/common/qgstreamerbufferprobe_p.h b/src/multimedia/platform/gstreamer/common/qgstreamerbufferprobe_p.h
index 5d66f7320..d3ca9db2e 100644
--- a/src/multimedia/platform/gstreamer/common/qgstreamerbufferprobe_p.h
+++ b/src/multimedia/platform/gstreamer/common/qgstreamerbufferprobe_p.h
@@ -89,4 +89,4 @@ private:
 
 QT_END_NAMESPACE
 
-#endif // QGSTREAMERAUDIOPROBECONTROL_H
+#endif // QGSTREAMERBUFFERPROBE_H
diff --git a/src/multimedia/platform/gstreamer/common/qgstreamerplayersession.cpp b/src/multimedia/platform/gstreamer/common/qgstreamerplayersession.cpp
index 3dfa20577..f7fd1647e 100644
--- a/src/multimedia/platform/gstreamer/common/qgstreamerplayersession.cpp
+++ b/src/multimedia/platform/gstreamer/common/qgstreamerplayersession.cpp
@@ -40,8 +40,6 @@
 #include <private/qgstreamerplayersession_p.h>
 #include <private/qgstreamerbushelper_p.h>
 
-#include <private/qgstreameraudioprobecontrol_p.h>
-#include <private/qgstreamervideoprobecontrol_p.h>
 #include <private/qgstreamervideorendererinterface_p.h>
 #include <private/qgstutils_p.h>
 #include <private/qgstvideorenderersink_p.h>
@@ -179,8 +177,6 @@ QGstreamerPlayerSession::~QGstreamerPlayerSession()
     if (m_pipeline) {
         stop();
 
-        removeVideoBufferProbe();
-        removeAudioBufferProbe();
 
         delete m_busHelper;
         m_busHelper = nullptr;
@@ -624,13 +620,10 @@ void QGstreamerPlayerSession::setVideoRenderer(QObject *videoOutput)
         qDebug() << "The pipeline has not started yet, pending state:" << m_pendingState;
 #endif
         //the pipeline has not started yet
-        flushVideoProbes();
         m_pendingVideoSink = 0;
         gst_element_set_state(m_videoSink, GST_STATE_NULL);
         gst_element_set_state(m_playbin, GST_STATE_NULL);
 
-        removeVideoBufferProbe();
-
         gst_bin_remove(GST_BIN(m_videoOutputBin), m_videoSink);
 
         m_videoSink = videoSink;
@@ -646,8 +639,6 @@ void QGstreamerPlayerSession::setVideoRenderer(QObject *videoOutput)
             g_object_set(G_OBJECT(m_videoSink), "show-preroll-frame", value, nullptr);
         }
 
-        addVideoBufferProbe();
-
         switch (m_pendingState) {
         case QMediaPlayer::PausedState:
             gst_element_set_state(m_playbin, GST_STATE_PAUSED);
@@ -659,8 +650,6 @@ void QGstreamerPlayerSession::setVideoRenderer(QObject *videoOutput)
             break;
         }
 
-        resumeVideoProbes();
-
     } else {
         if (m_pendingVideoSink) {
 #ifdef DEBUG_PLAYBIN
@@ -730,8 +719,6 @@ void QGstreamerPlayerSession::finishVideoOutputChange()
     gst_element_set_state(m_videoSink, GST_STATE_NULL);
     gst_element_unlink(m_videoIdentity, m_videoSink);
 
-    removeVideoBufferProbe();
-
     gst_bin_remove(GST_BIN(m_videoOutputBin), m_videoSink);
 
     m_videoSink = m_pendingVideoSink;
@@ -739,8 +726,6 @@ void QGstreamerPlayerSession::finishVideoOutputChange()
 
     gst_bin_add(GST_BIN(m_videoOutputBin), m_videoSink);
 
-    addVideoBufferProbe();
-
     bool linked = gst_element_link(m_videoIdentity, m_videoSink);
 
     if (!linked)
@@ -766,16 +751,10 @@ void QGstreamerPlayerSession::finishVideoOutputChange()
 
     gst_element_set_state(m_videoSink, state);
 
-    if (state == GST_STATE_NULL)
-        flushVideoProbes();
-
     // Set state change that was deferred due the video output
     // change being pending
     gst_element_set_state(m_playbin, state);
 
-    if (state != GST_STATE_NULL)
-        resumeVideoProbes();
-
     //don't have to wait here, it will unblock eventually
     if (gst_pad_is_blocked(srcPad))
         gst_pad_remove_probe(srcPad, this->pad_probe_id);
@@ -811,7 +790,6 @@ bool QGstreamerPlayerSession::play()
             m_pendingState = m_state = QMediaPlayer::StoppedState;
             emit stateChanged(m_state);
         } else {
-            resumeVideoProbes();
             return true;
         }
     }
@@ -834,7 +812,6 @@ bool QGstreamerPlayerSession::pause()
             m_pendingState = m_state = QMediaPlayer::StoppedState;
             emit stateChanged(m_state);
         } else {
-            resumeVideoProbes();
             return true;
         }
     }
@@ -853,7 +830,6 @@ void QGstreamerPlayerSession::stop()
         if (m_renderer)
             m_renderer->stopRenderer();
 
-        flushVideoProbes();
         gst_element_set_state(m_pipeline, GST_STATE_NULL);
 
         m_lastPosition = 0;
@@ -1589,34 +1565,6 @@ void QGstreamerPlayerSession::showPrerollFrames(bool enabled)
     }
 }
 
-void QGstreamerPlayerSession::addProbe(QGstreamerVideoProbeControl* probe)
-{
-    Q_ASSERT(!m_videoProbe);
-    m_videoProbe = probe;
-    addVideoBufferProbe();
-}
-
-void QGstreamerPlayerSession::removeProbe(QGstreamerVideoProbeControl* probe)
-{
-    Q_ASSERT(m_videoProbe == probe);
-    removeVideoBufferProbe();
-    m_videoProbe = 0;
-}
-
-void QGstreamerPlayerSession::addProbe(QGstreamerAudioProbeControl* probe)
-{
-    Q_ASSERT(!m_audioProbe);
-    m_audioProbe = probe;
-    addAudioBufferProbe();
-}
-
-void QGstreamerPlayerSession::removeProbe(QGstreamerAudioProbeControl* probe)
-{
-    Q_ASSERT(m_audioProbe == probe);
-    removeAudioBufferProbe();
-    m_audioProbe = 0;
-}
-
 // This function is similar to stop(),
 // but does not set m_everPlayed, m_lastPosition,
 // and setSeekable() values.
@@ -1625,7 +1573,6 @@ void QGstreamerPlayerSession::endOfMediaReset()
     if (m_renderer)
         m_renderer->stopRenderer();
 
-    flushVideoProbes();
     gst_element_set_state(m_pipeline, GST_STATE_PAUSED);
 
     QMediaPlayer::State oldState = m_state;
@@ -1647,30 +1594,6 @@ void QGstreamerPlayerSession::setAudioOutputDevice(const QAudioDeviceInfo &audio
         updateAudioSink();
 }
 
-void QGstreamerPlayerSession::removeVideoBufferProbe()
-{
-    if (!m_videoProbe)
-        return;
-
-    GstPad *pad = gst_element_get_static_pad(m_videoSink, "sink");
-    if (pad) {
-        m_videoProbe->removeProbeFromPad(pad);
-        gst_object_unref(GST_OBJECT(pad));
-    }
-}
-
-void QGstreamerPlayerSession::addVideoBufferProbe()
-{
-    if (!m_videoProbe)
-        return;
-
-    GstPad *pad = gst_element_get_static_pad(m_videoSink, "sink");
-    if (pad) {
-        m_videoProbe->addProbeToPad(pad);
-        gst_object_unref(GST_OBJECT(pad));
-    }
-}
-
 void QGstreamerPlayerSession::updateAudioSink()
 {
     QAudioDeviceInfo info = m_audioDevice;
@@ -1752,40 +1675,5 @@ void QGstreamerPlayerSession::finishAudioOutputChange()
     }
 }
 
-void QGstreamerPlayerSession::removeAudioBufferProbe()
-{
-    if (!m_audioProbe)
-        return;
-
-    GstPad *pad = gst_element_get_static_pad(GST_ELEMENT(m_volumeElement), "src");
-    if (pad) {
-        m_audioProbe->removeProbeFromPad(pad);
-        gst_object_unref(GST_OBJECT(pad));
-    }
-}
-
-void QGstreamerPlayerSession::addAudioBufferProbe()
-{
-    if (!m_audioProbe)
-        return;
-
-    GstPad *pad = gst_element_get_static_pad(GST_ELEMENT(m_volumeElement), "src");
-    if (pad) {
-        m_audioProbe->addProbeToPad(pad);
-        gst_object_unref(GST_OBJECT(pad));
-    }
-}
-
-void QGstreamerPlayerSession::flushVideoProbes()
-{
-    if (m_videoProbe)
-        m_videoProbe->startFlushing();
-}
-
-void QGstreamerPlayerSession::resumeVideoProbes()
-{
-    if (m_videoProbe)
-        m_videoProbe->stopFlushing();
-}
 
 QT_END_NAMESPACE
diff --git a/src/multimedia/platform/gstreamer/common/qgstreamerplayersession_p.h b/src/multimedia/platform/gstreamer/common/qgstreamerplayersession_p.h
index ebcc9e018..187d942e7 100644
--- a/src/multimedia/platform/gstreamer/common/qgstreamerplayersession_p.h
+++ b/src/multimedia/platform/gstreamer/common/qgstreamerplayersession_p.h
@@ -73,8 +73,6 @@ class QGstreamerBusHelper;
 class QGstreamerMessage;
 
 class QGstreamerVideoRendererInterface;
-class QGstreamerVideoProbeControl;
-class QGstreamerAudioProbeControl;
 
 typedef enum {
   GST_AUTOPLUG_SELECT_TRY,
@@ -138,12 +136,6 @@ public:
 
     bool isLiveSource() const;
 
-    void addProbe(QGstreamerVideoProbeControl* probe);
-    void removeProbe(QGstreamerVideoProbeControl* probe);
-
-    void addProbe(QGstreamerAudioProbeControl* probe);
-    void removeProbe(QGstreamerAudioProbeControl* probe);
-
     void endOfMediaReset();
 
     QAudioDeviceInfo audioOutputDevice() const { return m_audioDevice; }
@@ -202,13 +194,7 @@ private:
 
     static GstPadProbeReturn change_audio_sink_cb(GstPad *pad, GstPadProbeInfo *info, gpointer user_data);
 
-    void removeVideoBufferProbe();
-    void addVideoBufferProbe();
     void updateAudioSink();
-    void removeAudioBufferProbe();
-    void addAudioBufferProbe();
-    void flushVideoProbes();
-    void resumeVideoProbes();
     bool parsePipeline();
     bool setPipeline(GstElement *pipeline);
     void resetElements();
@@ -248,9 +234,6 @@ private:
     QList<QMediaStreamsControl::StreamType> m_streamTypes;
     QMap<QMediaStreamsControl::StreamType, int> m_playbin2StreamOffset;
 
-    QGstreamerVideoProbeControl *m_videoProbe = nullptr;
-    QGstreamerAudioProbeControl *m_audioProbe = nullptr;
-
     int m_volume = 100;
     qreal m_playbackRate = 1.0;
     bool m_muted = false;
diff --git a/src/multimedia/platform/gstreamer/common/qgstreamervideoprobecontrol.cpp b/src/multimedia/platform/gstreamer/common/qgstreamervideoprobecontrol.cpp
deleted file mode 100644
index 3d587eb2c..000000000
--- a/src/multimedia/platform/gstreamer/common/qgstreamervideoprobecontrol.cpp
+++ /dev/null
@@ -1,117 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qgstreamervideoprobecontrol_p.h"
-
-#include "qgstutils_p.h"
-#include <private/qgstvideobuffer_p.h>
-
-QGstreamerVideoProbeControl::QGstreamerVideoProbeControl(QObject *parent)
-    : QMediaVideoProbeControl(parent)
-{
-}
-
-QGstreamerVideoProbeControl::~QGstreamerVideoProbeControl()
-{
-}
-
-void QGstreamerVideoProbeControl::startFlushing()
-{
-    m_flushing = true;
-
-    {
-        QMutexLocker locker(&m_frameMutex);
-        m_pendingFrame = QVideoFrame();
-    }
-
-    // only emit flush if at least one frame was probed
-    if (m_frameProbed)
-        emit flush();
-}
-
-void QGstreamerVideoProbeControl::stopFlushing()
-{
-    m_flushing = false;
-}
-
-void QGstreamerVideoProbeControl::probeCaps(GstCaps *caps)
-{
-    GstVideoInfo videoInfo;
-    QVideoSurfaceFormat format = QGstUtils::formatForCaps(caps, &videoInfo);
-
-    QMutexLocker locker(&m_frameMutex);
-    m_videoInfo = videoInfo;
-    m_format = format;
-}
-
-bool QGstreamerVideoProbeControl::probeBuffer(GstBuffer *buffer)
-{
-    QMutexLocker locker(&m_frameMutex);
-
-    if (m_flushing || !m_format.isValid())
-        return true;
-
-    QVideoFrame frame(
-                new QGstVideoBuffer(buffer, m_videoInfo),
-                m_format.frameSize(),
-                m_format.pixelFormat());
-
-    QGstUtils::setFrameTimeStamps(&frame, buffer);
-
-    m_frameProbed = true;
-
-    if (!m_pendingFrame.isValid())
-        QMetaObject::invokeMethod(this, "frameProbed", Qt::QueuedConnection);
-    m_pendingFrame = frame;
-
-    return true;
-}
-
-void QGstreamerVideoProbeControl::frameProbed()
-{
-    QVideoFrame frame;
-    {
-        QMutexLocker locker(&m_frameMutex);
-        if (!m_pendingFrame.isValid())
-            return;
-        frame = m_pendingFrame;
-        m_pendingFrame = QVideoFrame();
-    }
-    emit videoFrameProbed(frame);
-}
diff --git a/src/multimedia/platform/gstreamer/common/qgstreamervideoprobecontrol_p.h b/src/multimedia/platform/gstreamer/common/qgstreamervideoprobecontrol_p.h
deleted file mode 100644
index 0c4b734b2..000000000
--- a/src/multimedia/platform/gstreamer/common/qgstreamervideoprobecontrol_p.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QGSTREAMERVIDEOPROBECONTROL_H
-#define QGSTREAMERVIDEOPROBECONTROL_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <private/qtmultimediaglobal_p.h>
-#include <gst/gst.h>
-#include <gst/video/video.h>
-#include <qmediavideoprobecontrol.h>
-#include <QtCore/qmutex.h>
-#include <qvideoframe.h>
-#include <qvideosurfaceformat.h>
-
-#include <private/qgstreamerbufferprobe_p.h>
-
-QT_BEGIN_NAMESPACE
-
-class Q_MULTIMEDIA_EXPORT QGstreamerVideoProbeControl
-    : public QMediaVideoProbeControl
-    , public QGstreamerBufferProbe
-    , public QSharedData
-{
-    Q_OBJECT
-public:
-    explicit QGstreamerVideoProbeControl(QObject *parent);
-    virtual ~QGstreamerVideoProbeControl();
-
-    void probeCaps(GstCaps *caps) override;
-    bool probeBuffer(GstBuffer *buffer) override;
-
-    void startFlushing();
-    void stopFlushing();
-
-private slots:
-    void frameProbed();
-
-private:
-    QVideoSurfaceFormat m_format;
-    QVideoFrame m_pendingFrame;
-    QMutex m_frameMutex;
-    GstVideoInfo m_videoInfo;
-    bool m_flushing = false;
-    bool m_frameProbed = false; // true if at least one frame was probed
-};
-
-QT_END_NAMESPACE
-
-#endif // QGSTREAMERVIDEOPROBECONTROL_H
diff --git a/src/multimedia/platform/gstreamer/mediacapture/qgstreamercaptureservice.cpp b/src/multimedia/platform/gstreamer/mediacapture/qgstreamercaptureservice.cpp
index aef73ea55..26df7676c 100644
--- a/src/multimedia/platform/gstreamer/mediacapture/qgstreamercaptureservice.cpp
+++ b/src/multimedia/platform/gstreamer/mediacapture/qgstreamercaptureservice.cpp
@@ -53,7 +53,6 @@
 #endif
 
 #include "qgstreamerimagecapturecontrol_p.h"
-#include <private/qgstreameraudioprobecontrol_p.h>
 
 #include <private/qgstreamervideorenderer_p.h>
 #include <private/qgstreamervideowindow_p.h>
@@ -127,15 +126,6 @@ QObject *QGstreamerCaptureService::requestControl(const char *name)
     if (qstrcmp(name, QCameraImageCaptureControl_iid) == 0)
         return m_imageCaptureControl;
 
-    if (qstrcmp(name,QMediaAudioProbeControl_iid) == 0) {
-        if (!m_audioProbeControl) {
-            m_audioProbeControl = new QGstreamerAudioProbeControl(this);
-            m_captureSession->addProbe(m_audioProbeControl);
-        }
-        m_audioProbeControl->ref.ref();
-        return m_audioProbeControl;
-    }
-
     if (!m_videoOutput) {
         if (qstrcmp(name, QVideoRendererControl_iid) == 0) {
             m_videoOutput = m_videoRenderer;
@@ -159,10 +149,6 @@ void QGstreamerCaptureService::releaseControl(QObject *control)
     } else if (control == m_videoOutput) {
         m_videoOutput = 0;
         m_captureSession->setVideoPreview(0);
-    } else if (control == m_audioProbeControl && !m_audioProbeControl->ref.deref()) {
-        m_captureSession->removeProbe(m_audioProbeControl);
-        delete m_audioProbeControl;
-        m_audioProbeControl = 0;
     }
 }
 
diff --git a/src/multimedia/platform/gstreamer/mediacapture/qgstreamercaptureservice_p.h b/src/multimedia/platform/gstreamer/mediacapture/qgstreamercaptureservice_p.h
index 878f5b030..598f805ef 100644
--- a/src/multimedia/platform/gstreamer/mediacapture/qgstreamercaptureservice_p.h
+++ b/src/multimedia/platform/gstreamer/mediacapture/qgstreamercaptureservice_p.h
@@ -58,7 +58,6 @@
 
 QT_BEGIN_NAMESPACE
 
-class QGstreamerAudioProbeControl;
 class QGstreamerCaptureSession;
 class QGstreamerCameraControl;
 class QGstreamerMessage;
@@ -96,8 +95,6 @@ private:
     QGstreamerVideoRenderer *m_videoRenderer = nullptr;
     QGstreamerVideoWindow *m_videoWindow = nullptr;
     QGstreamerImageCaptureControl *m_imageCaptureControl = nullptr;
-
-    QGstreamerAudioProbeControl *m_audioProbeControl = nullptr;
 };
 
 QT_END_NAMESPACE
diff --git a/src/multimedia/platform/gstreamer/mediacapture/qgstreamercapturesession.cpp b/src/multimedia/platform/gstreamer/mediacapture/qgstreamercapturesession.cpp
index 46c3f9607..d0fccf001 100644
--- a/src/multimedia/platform/gstreamer/mediacapture/qgstreamercapturesession.cpp
+++ b/src/multimedia/platform/gstreamer/mediacapture/qgstreamercapturesession.cpp
@@ -46,7 +46,6 @@
 #include <qmediarecorder.h>
 #include <qmediadevicemanager.h>
 #include <private/qgstreamervideorendererinterface_p.h>
-#include <private/qgstreameraudioprobecontrol_p.h>
 #include <private/qgstreamerbushelper_p.h>
 #include <private/qaudiodeviceinfo_gstreamer_p.h>
 #include <private/qgstutils_p.h>
@@ -72,7 +71,6 @@ QGstreamerCaptureSession::QGstreamerCaptureSession(QGstreamerCaptureSession::Cap
      m_waitingForEos(false),
      m_pipelineMode(EmptyPipeline),
      m_captureMode(captureMode),
-     m_audioProbe(0),
      m_audioPreviewFactory(0),
      m_videoInputFactory(0),
      m_viewfinder(0),
@@ -456,7 +454,6 @@ void QGstreamerCaptureSession::captureImage(int requestId, const QString &fileNa
 
 bool QGstreamerCaptureSession::rebuildGraph(QGstreamerCaptureSession::PipelineMode newMode)
 {
-    removeAudioBufferProbe();
     REMOVE_ELEMENT(m_audioSrc);
     REMOVE_ELEMENT(m_audioPreview);
     REMOVE_ELEMENT(m_audioPreviewQueue);
@@ -615,7 +612,6 @@ bool QGstreamerCaptureSession::rebuildGraph(QGstreamerCaptureSession::PipelineMo
 #endif
 
     if (ok) {
-        addAudioBufferProbe();
         m_pipelineMode = newMode;
     } else {
         m_pipelineMode = EmptyPipeline;
@@ -934,66 +930,4 @@ void QGstreamerCaptureSession::setVolume(qreal volume)
     }
 }
 
-void QGstreamerCaptureSession::addProbe(QGstreamerAudioProbeControl* probe)
-{
-    Q_ASSERT(!m_audioProbe);
-    m_audioProbe = probe;
-    addAudioBufferProbe();
-}
-
-void QGstreamerCaptureSession::removeProbe(QGstreamerAudioProbeControl* probe)
-{
-    Q_ASSERT(m_audioProbe == probe);
-    removeAudioBufferProbe();
-    m_audioProbe = 0;
-}
-
-GstPad *QGstreamerCaptureSession::getAudioProbePad()
-{
-    // first see if preview element is available
-    if (m_audioPreview) {
-        GstPad *pad = gst_element_get_static_pad(m_audioPreview, "sink");
-        if (pad)
-            return pad;
-    }
-
-    // preview element is not available,
-    // try to use sink pin of audio encoder.
-    if (m_encodeBin) {
-        GstElement *audioEncoder = gst_bin_get_by_name(GST_BIN(m_encodeBin), "audio-encoder-bin");
-        if (audioEncoder) {
-            GstPad *pad = gst_element_get_static_pad(audioEncoder, "sink");
-            gst_object_unref(audioEncoder);
-            if (pad)
-                return pad;
-        }
-    }
-
-    return 0;
-}
-
-void QGstreamerCaptureSession::removeAudioBufferProbe()
-{
-    if (!m_audioProbe)
-        return;
-
-    GstPad *pad = getAudioProbePad();
-    if (pad) {
-        m_audioProbe->removeProbeFromPad(pad);
-        gst_object_unref(GST_OBJECT(pad));
-    }
-}
-
-void QGstreamerCaptureSession::addAudioBufferProbe()
-{
-    if (!m_audioProbe)
-        return;
-
-    GstPad *pad = getAudioProbePad();
-    if (pad) {
-        m_audioProbe->addProbeToPad(pad);
-        gst_object_unref(GST_OBJECT(pad));
-    }
-}
-
 QT_END_NAMESPACE
diff --git a/src/multimedia/platform/gstreamer/mediacapture/qgstreamercapturesession_p.h b/src/multimedia/platform/gstreamer/mediacapture/qgstreamercapturesession_p.h
index a943b9c65..04fc7c26e 100644
--- a/src/multimedia/platform/gstreamer/mediacapture/qgstreamercapturesession_p.h
+++ b/src/multimedia/platform/gstreamer/mediacapture/qgstreamercapturesession_p.h
@@ -74,7 +74,6 @@ class QGstreamerImageEncode;
 class QGstreamerRecorderControl;
 class QGstreamerMediaContainerControl;
 class QGstreamerVideoRendererInterface;
-class QGstreamerAudioProbeControl;
 
 class QGstreamerElementFactory
 {
@@ -152,8 +151,6 @@ public:
 
     bool processBusMessage(const QGstreamerMessage &message) override;
 
-    void addProbe(QGstreamerAudioProbeControl* probe);
-    void removeProbe(QGstreamerAudioProbeControl* probe);
     QAudioDeviceInfo audioCaptureDevice() const { return m_audioDevice; }
 
 signals:
@@ -193,10 +190,6 @@ private:
 
     bool rebuildGraph(QGstreamerCaptureSession::PipelineMode newMode);
 
-    GstPad *getAudioProbePad();
-    void removeAudioBufferProbe();
-    void addAudioBufferProbe();
-
     QAudioDeviceInfo m_audioDevice;
     QUrl m_sink;
     State m_state;
@@ -206,8 +199,6 @@ private:
     QGstreamerCaptureSession::CaptureMode m_captureMode;
     QMap<QByteArray, QVariant> m_metaData;
 
-    QGstreamerAudioProbeControl *m_audioProbe;
-
     QGstreamerElementFactory *m_audioPreviewFactory;
     QGstreamerVideoInput *m_videoInputFactory;
     QObject *m_viewfinder;
diff --git a/src/multimedia/platform/gstreamer/mediaplayer/qgstreamerplayerservice.cpp b/src/multimedia/platform/gstreamer/mediaplayer/qgstreamerplayerservice.cpp
index acc7958ae..6da43f03b 100644
--- a/src/multimedia/platform/gstreamer/mediaplayer/qgstreamerplayerservice.cpp
+++ b/src/multimedia/platform/gstreamer/mediaplayer/qgstreamerplayerservice.cpp
@@ -49,8 +49,6 @@
 #include <private/qgstreamervideorenderer_p.h>
 
 #include "qgstreamerstreamscontrol_p.h"
-#include <private/qgstreameraudioprobecontrol_p.h>
-#include <private/qgstreamervideoprobecontrol_p.h>
 #include <private/qgstreamerplayersession_p.h>
 #include <private/qgstreamerplayercontrol_p.h>
 
@@ -85,25 +83,6 @@ QObject *QGstreamerPlayerService::requestControl(const char *name)
     if (qstrcmp(name,QMetaDataReaderControl_iid) == 0)
         return m_metaData;
 
-    if (qstrcmp(name, QMediaVideoProbeControl_iid) == 0) {
-        if (!m_videoProbeControl) {
-            increaseVideoRef();
-            m_videoProbeControl = new QGstreamerVideoProbeControl(this);
-            m_session->addProbe(m_videoProbeControl);
-        }
-        m_videoProbeControl->ref.ref();
-        return m_videoProbeControl;
-    }
-
-    if (qstrcmp(name, QMediaAudioProbeControl_iid) == 0) {
-        if (!m_audioProbeControl) {
-            m_audioProbeControl = new QGstreamerAudioProbeControl(this);
-            m_session->addProbe(m_audioProbeControl);
-        }
-        m_audioProbeControl->ref.ref();
-        return m_audioProbeControl;
-    }
-
     if (!m_videoOutput) {
         if (qstrcmp(name, QVideoRendererControl_iid) == 0)
             m_videoOutput = m_videoRenderer;
@@ -129,15 +108,6 @@ void QGstreamerPlayerService::releaseControl(QObject *control)
         m_videoOutput = 0;
         m_control->setVideoOutput(0);
         decreaseVideoRef();
-    } else if (control == m_videoProbeControl && !m_videoProbeControl->ref.deref()) {
-        m_session->removeProbe(m_videoProbeControl);
-        delete m_videoProbeControl;
-        m_videoProbeControl = 0;
-        decreaseVideoRef();
-    } else if (control == m_audioProbeControl && !m_audioProbeControl->ref.deref()) {
-        m_session->removeProbe(m_audioProbeControl);
-        delete m_audioProbeControl;
-        m_audioProbeControl = 0;
     }
 }
 
@@ -156,47 +126,6 @@ QMediaStreamsControl *QGstreamerPlayerService::streams()
     return m_streamsControl;
 }
 
-QMediaVideoProbeControl *QGstreamerPlayerService::videoProbe()
-{
-    if (!m_videoProbeControl) {
-        increaseVideoRef();
-        m_videoProbeControl = new QGstreamerVideoProbeControl(this);
-        m_session->addProbe(m_videoProbeControl);
-    }
-    return m_videoProbeControl;
-}
-
-void QGstreamerPlayerService::releaseVideoProbe(QMediaVideoProbeControl *)
-{
-    Q_ASSERT(m_videoProbeControl);
-    if (!m_videoProbeControl->ref.deref()) {
-        m_session->removeProbe(m_videoProbeControl);
-        delete m_videoProbeControl;
-        m_videoProbeControl = nullptr;
-        decreaseVideoRef();
-    }
-}
-
-QMediaAudioProbeControl *QGstreamerPlayerService::audioProbe()
-{
-    if (!m_audioProbeControl) {
-        m_audioProbeControl = new QGstreamerAudioProbeControl(this);
-        m_session->addProbe(m_audioProbeControl);
-    }
-    m_audioProbeControl->ref.ref();
-    return m_audioProbeControl;
-}
-
-void QGstreamerPlayerService::releaseAudioProbe(QMediaAudioProbeControl *)
-{
-    Q_ASSERT(m_audioProbeControl);
-    if (!m_audioProbeControl->ref.deref()) {
-        m_session->removeProbe(m_audioProbeControl);
-        delete m_audioProbeControl;
-        m_audioProbeControl = nullptr;
-    }
-}
-
 QVideoRendererControl *QGstreamerPlayerService::createVideoRenderer()
 {
     if (!m_videoOutput) {
diff --git a/src/multimedia/platform/gstreamer/mediaplayer/qgstreamerplayerservice_p.h b/src/multimedia/platform/gstreamer/mediaplayer/qgstreamerplayerservice_p.h
index 816f84830..0a7663e51 100644
--- a/src/multimedia/platform/gstreamer/mediaplayer/qgstreamerplayerservice_p.h
+++ b/src/multimedia/platform/gstreamer/mediaplayer/qgstreamerplayerservice_p.h
@@ -67,8 +67,6 @@ class QGstreamerStreamsControl;
 class QGstreamerVideoRenderer;
 class QGstreamerVideoWindow;
 class QGStreamerAvailabilityControl;
-class QGstreamerAudioProbeControl;
-class QGstreamerVideoProbeControl;
 
 class QGstreamerPlayerService : public QMediaPlatformPlayerInterface
 {
@@ -85,10 +83,6 @@ public:
     QMediaPlayerControl *player() override;
     QMetaDataReaderControl *dataReader() override;
     QMediaStreamsControl *streams() override;
-    QMediaVideoProbeControl *videoProbe() override;
-    void releaseVideoProbe(QMediaVideoProbeControl *) override;
-    QMediaAudioProbeControl *audioProbe() override;
-    void releaseAudioProbe(QMediaAudioProbeControl *) override;
 
     QVideoRendererControl *createVideoRenderer() override;
     QVideoWindowControl *createVideoWindow() override;;
@@ -99,9 +93,6 @@ private:
     QGstreamerMetaDataProvider *m_metaData = nullptr;
     QGstreamerStreamsControl *m_streamsControl = nullptr;
 
-    QGstreamerAudioProbeControl *m_audioProbeControl = nullptr;
-    QGstreamerVideoProbeControl *m_videoProbeControl = nullptr;
-
     QObject *m_videoOutput = nullptr;
     QVideoRendererControl *m_videoRenderer = nullptr;
     QGstreamerVideoWindow *m_videoWindow = nullptr;
diff --git a/src/multimedia/platform/qmediaplatformplayerinterface_p.h b/src/multimedia/platform/qmediaplatformplayerinterface_p.h
index d1f6b9a35..a58cae316 100644
--- a/src/multimedia/platform/qmediaplatformplayerinterface_p.h
+++ b/src/multimedia/platform/qmediaplatformplayerinterface_p.h
@@ -58,8 +58,6 @@ QT_BEGIN_NAMESPACE
 class QMediaPlayerControl;
 class QMetaDataReaderControl;
 class QMediaStreamsControl;
-class QMediaVideoProbeControl;
-class QMediaAudioProbeControl;
 class QVideoRendererControl;
 class QVideoWindowControl;
 
@@ -74,10 +72,6 @@ public:
 
     // ### nothing in the frontend uses the stream info currently. Needs implementation in QMediaPlayer
     virtual QMediaStreamsControl *streams() { return nullptr; }
-    virtual QMediaVideoProbeControl *videoProbe() { return nullptr; }
-    virtual void releaseVideoProbe(QMediaVideoProbeControl *) {}
-    virtual QMediaAudioProbeControl *audioProbe() { return nullptr; }
-    virtual void releaseAudioProbe(QMediaAudioProbeControl *) {}
 
     virtual QVideoRendererControl *createVideoRenderer() = 0;
     virtual QVideoWindowControl *createVideoWindow() { return nullptr; };
diff --git a/src/multimedia/platform/qnx/mediaplayer/mmrenderermediaplayerservice_p.h b/src/multimedia/platform/qnx/mediaplayer/mmrenderermediaplayerservice_p.h
index 6ea1c3b0a..eeb3b024a 100644
--- a/src/multimedia/platform/qnx/mediaplayer/mmrenderermediaplayerservice_p.h
+++ b/src/multimedia/platform/qnx/mediaplayer/mmrenderermediaplayerservice_p.h
@@ -74,10 +74,6 @@ public:
     QMediaPlayerControl *player() override;
     QMetaDataReaderControl *dataReader() override;
 //    QMediaStreamsControl *streams() override;
-//    QMediaVideoProbeControl *videoProbe() override;
-//    void releaseVideoProbe(QMediaVideoProbeControl *) override;
-//    QMediaAudioProbeControl *audioProbe() override;
-//    void releaseAudioProbe(QMediaAudioProbeControl *) override;
 
     QVideoRendererControl *createVideoRenderer() override;
     QVideoWindowControl *createVideoWindow() override;;
diff --git a/src/multimedia/platform/windows/player/mfaudioprobecontrol.cpp b/src/multimedia/platform/windows/player/mfaudioprobecontrol.cpp
deleted file mode 100644
index a371629da..000000000
--- a/src/multimedia/platform/windows/player/mfaudioprobecontrol.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "mfaudioprobecontrol_p.h"
-
-MFAudioProbeControl::MFAudioProbeControl(QObject *parent):
-    QMediaAudioProbeControl(parent)
-{
-}
-
-MFAudioProbeControl::~MFAudioProbeControl()
-{
-}
-
-void MFAudioProbeControl::bufferProbed(const char *data, quint32 size, const QAudioFormat& format, qint64 startTime)
-{
-    if (!format.isValid())
-        return;
-
-    QAudioBuffer audioBuffer = QAudioBuffer(QByteArray(data, size), format, startTime);
-
-    {
-        QMutexLocker locker(&m_bufferMutex);
-        m_pendingBuffer = audioBuffer;
-        QMetaObject::invokeMethod(this, "bufferProbed", Qt::QueuedConnection);
-    }
-}
-
-void MFAudioProbeControl::bufferProbed()
-{
-    QAudioBuffer audioBuffer;
-    {
-        QMutexLocker locker(&m_bufferMutex);
-        if (!m_pendingBuffer.isValid())
-            return;
-        audioBuffer = m_pendingBuffer;
-    }
-    emit audioBufferProbed(audioBuffer);
-}
diff --git a/src/multimedia/platform/windows/player/mfaudioprobecontrol_p.h b/src/multimedia/platform/windows/player/mfaudioprobecontrol_p.h
deleted file mode 100644
index 0ccf151ad..000000000
--- a/src/multimedia/platform/windows/player/mfaudioprobecontrol_p.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef MFAUDIOPROBECONTROL_H
-#define MFAUDIOPROBECONTROL_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <qmediaaudioprobecontrol.h>
-#include <QtCore/qmutex.h>
-#include <qaudiobuffer.h>
-
-QT_USE_NAMESPACE
-
-class MFAudioProbeControl : public QMediaAudioProbeControl
-{
-    Q_OBJECT
-public:
-    explicit MFAudioProbeControl(QObject *parent);
-    virtual ~MFAudioProbeControl();
-
-    void bufferProbed(const char *data, quint32 size, const QAudioFormat& format, qint64 startTime);
-
-private slots:
-    void bufferProbed();
-
-private:
-    QAudioBuffer m_pendingBuffer;
-    QMutex m_bufferMutex;
-};
-
-#endif
diff --git a/src/multimedia/platform/windows/player/mfplayerservice.cpp b/src/multimedia/platform/windows/player/mfplayerservice.cpp
index 3cbcc2aa2..0a0096fb1 100644
--- a/src/multimedia/platform/windows/player/mfplayerservice.cpp
+++ b/src/multimedia/platform/windows/player/mfplayerservice.cpp
@@ -44,8 +44,6 @@
 #include "mfplayercontrol_p.h"
 #include "mfevrvideowindowcontrol_p.h"
 #include "mfvideorenderercontrol_p.h"
-#include "mfaudioprobecontrol_p.h"
-#include "mfvideoprobecontrol_p.h"
 #include "mfplayerservice_p.h"
 #include "mfplayersession_p.h"
 #include "mfmetadatacontrol_p.h"
@@ -86,20 +84,6 @@ QObject *MFPlayerService::requestControl(const char *name)
             m_videoWindowControl = new MFEvrVideoWindowControl;
             return m_videoWindowControl;
         }
-    } else if (qstrcmp(name,QMediaAudioProbeControl_iid) == 0) {
-        if (m_session) {
-            MFAudioProbeControl *probe = new MFAudioProbeControl(this);
-            m_session->addProbe(probe);
-            return probe;
-        }
-        return 0;
-    } else if (qstrcmp(name,QMediaVideoProbeControl_iid) == 0) {
-        if (m_session) {
-            MFVideoProbeControl *probe = new MFVideoProbeControl(this);
-            m_session->addProbe(probe);
-            return probe;
-        }
-        return 0;
     }
 
     return 0;
@@ -120,22 +104,6 @@ void MFPlayerService::releaseControl(QObject *control)
         m_videoWindowControl = 0;
         return;
     }
-
-    MFAudioProbeControl* audioProbe = qobject_cast<MFAudioProbeControl*>(control);
-    if (audioProbe) {
-        if (m_session)
-            m_session->removeProbe(audioProbe);
-        delete audioProbe;
-        return;
-    }
-
-    MFVideoProbeControl* videoProbe = qobject_cast<MFVideoProbeControl*>(control);
-    if (videoProbe) {
-        if (m_session)
-            m_session->removeProbe(videoProbe);
-        delete videoProbe;
-        return;
-    }
 }
 
 QMediaPlayerControl *MFPlayerService::player()
@@ -148,41 +116,6 @@ QMetaDataReaderControl *MFPlayerService::dataReader()
     return m_metaDataControl;
 }
 
-QMediaVideoProbeControl *MFPlayerService::videoProbe()
-{
-    if (m_session) {
-        MFVideoProbeControl *probe = new MFVideoProbeControl(this);
-        m_session->addProbe(probe);
-        return probe;
-    }
-    return 0;
-}
-
-void MFPlayerService::releaseVideoProbe(QMediaVideoProbeControl *probe)
-{
-    MFVideoProbeControl* videoProbe = qobject_cast<MFVideoProbeControl*>(probe);
-    if (m_session)
-        m_session->removeProbe(videoProbe);
-    delete videoProbe;
-}
-
-QMediaAudioProbeControl *MFPlayerService::audioProbe()
-{
-    if (m_session) {
-        MFAudioProbeControl *probe = new MFAudioProbeControl(this);
-        m_session->addProbe(probe);
-        return probe;
-    }
-}
-
-void MFPlayerService::releaseAudioProbe(QMediaAudioProbeControl *probe)
-{
-    MFAudioProbeControl* audioProbe = qobject_cast<MFAudioProbeControl*>(probe);
-    if (m_session)
-        m_session->removeProbe(audioProbe);
-    delete audioProbe;
-}
-
 QVideoRendererControl *MFPlayerService::createVideoRenderer()
 {
     return m_videoRendererControl;
diff --git a/src/multimedia/platform/windows/player/mfplayerservice_p.h b/src/multimedia/platform/windows/player/mfplayerservice_p.h
index 26fd2d8df..e896660d5 100644
--- a/src/multimedia/platform/windows/player/mfplayerservice_p.h
+++ b/src/multimedia/platform/windows/player/mfplayerservice_p.h
@@ -84,10 +84,6 @@ public:
     QMediaPlayerControl *player() override;
     QMetaDataReaderControl *dataReader() override;
     // ### QMediaStreamsControl *streams() override;
-    QMediaVideoProbeControl *videoProbe() override;
-    void releaseVideoProbe(QMediaVideoProbeControl *) override;
-    QMediaAudioProbeControl *audioProbe() override;
-    void releaseAudioProbe(QMediaAudioProbeControl *) override;
 
     virtual QVideoRendererControl *createVideoRenderer() override;
     virtual QVideoWindowControl *createVideoWindow() override;
diff --git a/src/multimedia/platform/windows/player/mfplayersession.cpp b/src/multimedia/platform/windows/player/mfplayersession.cpp
index c5aca11cb..0c3f10b9f 100644
--- a/src/multimedia/platform/windows/player/mfplayersession.cpp
+++ b/src/multimedia/platform/windows/player/mfplayersession.cpp
@@ -157,35 +157,6 @@ void MFPlayerSession::close()
     m_hCloseEvent = 0;
 }
 
-void MFPlayerSession::addProbe(MFAudioProbeControl *probe)
-{
-    m_audioSampleGrabber->addProbe(probe);
-}
-
-void MFPlayerSession::removeProbe(MFAudioProbeControl *probe)
-{
-    m_audioSampleGrabber->removeProbe(probe);
-}
-
-void MFPlayerSession::addProbe(MFVideoProbeControl* probe)
-{
-    if (m_videoProbes.contains(probe))
-        return;
-
-    m_videoProbes.append(probe);
-
-    if (m_videoProbeMFT)
-        m_videoProbeMFT->addProbe(probe);
-}
-
-void MFPlayerSession::removeProbe(MFVideoProbeControl* probe)
-{
-    m_videoProbes.removeOne(probe);
-
-    if (m_videoProbeMFT)
-        m_videoProbeMFT->removeProbe(probe);
-}
-
 MFPlayerSession::~MFPlayerSession()
 {
     if (m_currentAudioActivate)
@@ -1076,8 +1047,8 @@ void MFPlayerSession::createSession()
     QObject::connect(m_sourceResolver, SIGNAL(error(long)), this, SLOT(handleSourceError(long)));
 
     m_videoProbeMFT = new MFTransform;
-    for (int i = 0; i < m_videoProbes.size(); ++i)
-        m_videoProbeMFT->addProbe(m_videoProbes.at(i));
+//    for (int i = 0; i < m_videoProbes.size(); ++i)
+//        m_videoProbeMFT->addProbe(m_videoProbes.at(i));
 
     Q_ASSERT(m_session == NULL);
     HRESULT hr = MFCreateMediaSession(NULL, &m_session);
diff --git a/src/multimedia/platform/windows/player/mfplayersession_p.h b/src/multimedia/platform/windows/player/mfplayersession_p.h
index 4231b7641..302f22556 100644
--- a/src/multimedia/platform/windows/player/mfplayersession_p.h
+++ b/src/multimedia/platform/windows/player/mfplayersession_p.h
@@ -79,8 +79,6 @@ class MFMetaDataControl;
 class MFPlayerService;
 class AudioSampleGrabberCallback;
 class MFTransform;
-class MFAudioProbeControl;
-class MFVideoProbeControl;
 
 class MFPlayerSession : public QObject, public IMFAsyncCallback
 {
@@ -126,11 +124,6 @@ public:
 
     void close();
 
-    void addProbe(MFAudioProbeControl* probe);
-    void removeProbe(MFAudioProbeControl* probe);
-    void addProbe(MFVideoProbeControl* probe);
-    void removeProbe(MFVideoProbeControl* probe);
-
     bool setAudioOutput(const QAudioDeviceInfo &device);
     QAudioDeviceInfo audioOutput() const { return m_audioOutput; }
 
@@ -243,14 +236,15 @@ private:
     bool addAudioSampleGrabberNode(IMFTopology* topology);
     bool setupAudioSampleGrabber(IMFTopology *topology, IMFTopologyNode *sourceNode, IMFTopologyNode *outputNode);
     QAudioFormat audioFormatForMFMediaType(IMFMediaType *mediaType) const;
+    // ### Below can be used to monitor the audio channel. Currently unused.
     AudioSampleGrabberCallback *m_audioSampleGrabber;
     IMFTopologyNode *m_audioSampleGrabberNode;
 
     IMFTopology *insertMFT(IMFTopology *topology, TOPOID outputNodeId);
     bool insertResizer(IMFTopology *topology);
     void insertColorConverter(IMFTopology *topology, TOPOID outputNodeId);
+    // ### Below can be used to monitor the video channel. Functionality currently unused.
     MFTransform *m_videoProbeMFT;
-    QList<MFVideoProbeControl*> m_videoProbes;
 };
 
 
diff --git a/src/multimedia/platform/windows/player/mftvideo.cpp b/src/multimedia/platform/windows/player/mftvideo.cpp
index b2ff27f80..8bb2f86be 100644
--- a/src/multimedia/platform/windows/player/mftvideo.cpp
+++ b/src/multimedia/platform/windows/player/mftvideo.cpp
@@ -38,7 +38,6 @@
 ****************************************************************************/
 
 #include "mftvideo_p.h"
-#include "mfvideoprobecontrol_p.h"
 #include <private/qmemoryvideobuffer_p.h>
 #include <mferror.h>
 #include <strmif.h>
@@ -75,21 +74,21 @@ MFTransform::~MFTransform()
         m_videoSinkTypeHandler->Release();
 }
 
-void MFTransform::addProbe(MFVideoProbeControl *probe)
-{
-    QMutexLocker locker(&m_videoProbeMutex);
+//void MFTransform::addProbe(MFVideoProbeControl *probe)
+//{
+//    QMutexLocker locker(&m_videoProbeMutex);
 
-    if (m_videoProbes.contains(probe))
-        return;
+//    if (m_videoProbes.contains(probe))
+//        return;
 
-    m_videoProbes.append(probe);
-}
+//    m_videoProbes.append(probe);
+//}
 
-void MFTransform::removeProbe(MFVideoProbeControl *probe)
-{
-    QMutexLocker locker(&m_videoProbeMutex);
-    m_videoProbes.removeOne(probe);
-}
+//void MFTransform::removeProbe(MFVideoProbeControl *probe)
+//{
+//    QMutexLocker locker(&m_videoProbeMutex);
+//    m_videoProbes.removeOne(probe);
+//}
 
 void MFTransform::setVideoSink(IUnknown *videoSink)
 {
@@ -519,12 +518,12 @@ STDMETHODIMP MFTransform::ProcessInput(DWORD dwInputStreamID, IMFSample *pSample
 
     QMutexLocker lockerProbe(&m_videoProbeMutex);
 
-    if (!m_videoProbes.isEmpty()) {
-        QVideoFrame frame = makeVideoFrame();
+//    if (!m_videoProbes.isEmpty()) {
+//        QVideoFrame frame = makeVideoFrame();
 
-        for (MFVideoProbeControl* probe : qAsConst(m_videoProbes))
-            probe->bufferProbed(frame);
-    }
+//        for (MFVideoProbeControl* probe : qAsConst(m_videoProbes))
+//            probe->bufferProbed(frame);
+//    }
 
     return S_OK;
 }
@@ -570,12 +569,12 @@ STDMETHODIMP MFTransform::ProcessOutput(DWORD dwFlags, DWORD cOutputBufferCount,
     // We do it here (instead of inside ProcessInput) to make sure samples discarded by the renderer
     // are not sent.
     m_videoProbeMutex.lock();
-    if (!m_videoProbes.isEmpty()) {
-        QVideoFrame frame = makeVideoFrame();
+//    if (!m_videoProbes.isEmpty()) {
+//        QVideoFrame frame = makeVideoFrame();
 
-        for (MFVideoProbeControl* probe : qAsConst(m_videoProbes))
-            probe->bufferProbed(frame);
-    }
+//        for (MFVideoProbeControl* probe : qAsConst(m_videoProbes))
+//            probe->bufferProbed(frame);
+//    }
     m_videoProbeMutex.unlock();
 
 done:
diff --git a/src/multimedia/platform/windows/player/mftvideo_p.h b/src/multimedia/platform/windows/player/mftvideo_p.h
index e08f0977f..359fc8391 100644
--- a/src/multimedia/platform/windows/player/mftvideo_p.h
+++ b/src/multimedia/platform/windows/player/mftvideo_p.h
@@ -118,7 +118,7 @@ private:
 
     IMFMediaTypeHandler *m_videoSinkTypeHandler;
 
-    QList<MFVideoProbeControl*> m_videoProbes;
+//    QList<MFVideoProbeControl*> m_videoProbes;
     QMutex m_videoProbeMutex;
 
     QVideoSurfaceFormat m_format;
diff --git a/src/multimedia/platform/windows/player/mfvideoprobecontrol.cpp b/src/multimedia/platform/windows/player/mfvideoprobecontrol.cpp
deleted file mode 100644
index e4d1a8b23..000000000
--- a/src/multimedia/platform/windows/player/mfvideoprobecontrol.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "mfvideoprobecontrol_p.h"
-
-MFVideoProbeControl::MFVideoProbeControl(QObject *parent)
-    : QMediaVideoProbeControl(parent)
-{
-}
-
-MFVideoProbeControl::~MFVideoProbeControl()
-{
-}
-
-void MFVideoProbeControl::bufferProbed(const QVideoFrame& frame)
-{
-    QMetaObject::invokeMethod(this, "videoFrameProbed", Qt::QueuedConnection, Q_ARG(QVideoFrame, frame));
-}
diff --git a/src/multimedia/platform/windows/player/mfvideoprobecontrol_p.h b/src/multimedia/platform/windows/player/mfvideoprobecontrol_p.h
deleted file mode 100644
index a7f79ef92..000000000
--- a/src/multimedia/platform/windows/player/mfvideoprobecontrol_p.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef MFVIDEOPROBECONTROL_H
-#define MFVIDEOPROBECONTROL_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <qmediavideoprobecontrol.h>
-#include <QtCore/qmutex.h>
-#include <qvideoframe.h>
-
-QT_USE_NAMESPACE
-
-class MFVideoProbeControl : public QMediaVideoProbeControl
-{
-    Q_OBJECT
-public:
-    explicit MFVideoProbeControl(QObject *parent);
-    virtual ~MFVideoProbeControl();
-
-    void bufferProbed(const QVideoFrame& frame);
-};
-
-#endif
diff --git a/src/multimedia/platform/windows/player/player.pri b/src/multimedia/platform/windows/player/player.pri
index 9aea6fb4a..b7990b21d 100644
--- a/src/multimedia/platform/windows/player/player.pri
+++ b/src/multimedia/platform/windows/player/player.pri
@@ -9,8 +9,6 @@ HEADERS += \
     $$PWD/mfplayercontrol_p.h \
     $$PWD/mfvideorenderercontrol_p.h \
     $$PWD/mfmetadatacontrol_p.h \
-    $$PWD/mfaudioprobecontrol_p.h \
-    $$PWD/mfvideoprobecontrol_p.h \
     $$PWD/mfevrvideowindowcontrol_p.h \
     $$PWD/samplegrabber_p.h \
     $$PWD/mftvideo_p.h \
@@ -22,8 +20,6 @@ SOURCES += \
     $$PWD/mfplayercontrol.cpp \
     $$PWD/mfvideorenderercontrol.cpp \
     $$PWD/mfmetadatacontrol.cpp \
-    $$PWD/mfaudioprobecontrol.cpp \
-    $$PWD/mfvideoprobecontrol.cpp \
     $$PWD/mfevrvideowindowcontrol.cpp \
     $$PWD/samplegrabber.cpp \
     $$PWD/mftvideo.cpp \
diff --git a/src/multimedia/platform/windows/player/samplegrabber.cpp b/src/multimedia/platform/windows/player/samplegrabber.cpp
index 6c14dc152..ef039a902 100644
--- a/src/multimedia/platform/windows/player/samplegrabber.cpp
+++ b/src/multimedia/platform/windows/player/samplegrabber.cpp
@@ -38,7 +38,6 @@
 ****************************************************************************/
 
 #include "samplegrabber_p.h"
-#include "mfaudioprobecontrol_p.h"
 
 STDMETHODIMP SampleGrabberCallback::QueryInterface(REFIID riid, void** ppv)
 {
@@ -120,21 +119,21 @@ STDMETHODIMP SampleGrabberCallback::OnShutdown()
     return S_OK;
 }
 
-void AudioSampleGrabberCallback::addProbe(MFAudioProbeControl* probe)
-{
-    QMutexLocker locker(&m_audioProbeMutex);
+//void AudioSampleGrabberCallback::addProbe(MFAudioProbeControl* probe)
+//{
+//    QMutexLocker locker(&m_audioProbeMutex);
 
-    if (m_audioProbes.contains(probe))
-        return;
+//    if (m_audioProbes.contains(probe))
+//        return;
 
-    m_audioProbes.append(probe);
-}
+//    m_audioProbes.append(probe);
+//}
 
-void AudioSampleGrabberCallback::removeProbe(MFAudioProbeControl* probe)
-{
-    QMutexLocker locker(&m_audioProbeMutex);
-    m_audioProbes.removeOne(probe);
-}
+//void AudioSampleGrabberCallback::removeProbe(MFAudioProbeControl* probe)
+//{
+//    QMutexLocker locker(&m_audioProbeMutex);
+//    m_audioProbes.removeOne(probe);
+//}
 
 void AudioSampleGrabberCallback::setFormat(const QAudioFormat& format)
 {
@@ -154,7 +153,7 @@ STDMETHODIMP AudioSampleGrabberCallback::OnProcessSample(REFGUID guidMajorMediaT
 
     QMutexLocker locker(&m_audioProbeMutex);
 
-    if (m_audioProbes.isEmpty())
+//    if (m_audioProbes.isEmpty())
         return S_OK;
 
     // Check if sample has a presentation time
@@ -166,8 +165,8 @@ STDMETHODIMP AudioSampleGrabberCallback::OnProcessSample(REFGUID guidMajorMediaT
         llSampleTime /= 10;
     }
 
-    for (MFAudioProbeControl* probe : qAsConst(m_audioProbes))
-        probe->bufferProbed((const char*)pSampleBuffer, dwSampleSize, m_format, llSampleTime);
+//    for (MFAudioProbeControl* probe : qAsConst(m_audioProbes))
+//        probe->bufferProbed((const char*)pSampleBuffer, dwSampleSize, m_format, llSampleTime);
 
     return S_OK;
 }
diff --git a/src/multimedia/platform/windows/player/samplegrabber_p.h b/src/multimedia/platform/windows/player/samplegrabber_p.h
index 74eb62065..31e00987c 100644
--- a/src/multimedia/platform/windows/player/samplegrabber_p.h
+++ b/src/multimedia/platform/windows/player/samplegrabber_p.h
@@ -57,8 +57,6 @@
 #include <mfapi.h>
 #include <mfidl.h>
 
-class MFAudioProbeControl;
-
 class SampleGrabberCallback : public IMFSampleGrabberSinkCallback
 {
 public:
@@ -90,8 +88,6 @@ private:
 
 class AudioSampleGrabberCallback: public SampleGrabberCallback {
 public:
-    void addProbe(MFAudioProbeControl* probe);
-    void removeProbe(MFAudioProbeControl* probe);
     void setFormat(const QAudioFormat& format);
 
     STDMETHODIMP OnProcessSample(REFGUID guidMajorMediaType, DWORD dwSampleFlags,
@@ -99,7 +95,7 @@ public:
         DWORD dwSampleSize);
 
 private:
-    QList<MFAudioProbeControl*> m_audioProbes;
+//    QList<MFAudioProbeControl*> m_audioProbes;
     QMutex m_audioProbeMutex;
     QAudioFormat m_format;
 };