GStreamer: clean up AudioInput/AudioOutput

The `QPlatformAudioXput` classes have `volume`/`muted` members. The
GStreamer implementations should use these members.

Pick-to: 6.5
Change-Id: Ic95382cc7801200b1fa0db7b150a88825fe1b583
Reviewed-by: Jøger Hansegård <joger.hansegard@qt.io>
Reviewed-by: Artem Dyomin <artem.dyomin@qt.io>
(cherry picked from commit d5ce9c48a2643e08e7a628458345e23e64900f6c)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 5002aa7db12abcf520d47f67f95e59cc5b9fb652)

4 files changed, 8 insertions, 30 deletions

diff --git a/src/plugins/multimedia/gstreamer/common/qgstreameraudioinput.cpp b/src/plugins/multimedia/gstreamer/common/qgstreameraudioinput.cpp
index a20293527..ad00903e8 100644
--- a/src/plugins/multimedia/gstreamer/common/qgstreameraudioinput.cpp
+++ b/src/plugins/multimedia/gstreamer/common/qgstreameraudioinput.cpp
@@ -52,29 +52,13 @@ QGstreamerAudioInput::~QGstreamerAudioInput()
     gstAudioInput.setStateSync(GST_STATE_NULL);
 }
 
-int QGstreamerAudioInput::volume() const
+void QGstreamerAudioInput::setVolume(float volume)
 {
-    return m_volume;
-}
-
-bool QGstreamerAudioInput::isMuted() const
-{
-    return m_muted;
-}
-
-void QGstreamerAudioInput::setVolume(float vol)
-{
-    if (vol == m_volume)
-        return;
-    m_volume = vol;
-    audioVolume.set("volume", vol);
+    audioVolume.set("volume", volume);
 }
 
 void QGstreamerAudioInput::setMuted(bool muted)
 {
-    if (muted == m_muted)
-        return;
-    m_muted = muted;
     audioVolume.set("mute", muted);
 }
 
diff --git a/src/plugins/multimedia/gstreamer/common/qgstreameraudioinput_p.h b/src/plugins/multimedia/gstreamer/common/qgstreameraudioinput_p.h
index 4337626be..f88d14419 100644
--- a/src/plugins/multimedia/gstreamer/common/qgstreameraudioinput_p.h
+++ b/src/plugins/multimedia/gstreamer/common/qgstreameraudioinput_p.h
@@ -34,24 +34,18 @@ public:
     static QMaybe<QPlatformAudioInput *> create(QAudioInput *parent);
     ~QGstreamerAudioInput();
 
-    int volume() const;
-    bool isMuted() const;
-
     bool setAudioInput(const QAudioDevice &);
     QAudioDevice audioInput() const;
 
     void setAudioDevice(const QAudioDevice &) override;
-    void setVolume(float volume) override;
-    void setMuted(bool muted) override;
+    void setVolume(float) override;
+    void setMuted(bool) override;
 
     QGstElement gstElement() const { return gstAudioInput; }
 
 private:
     QGstreamerAudioInput(QGstElement autoaudiosrc, QGstElement volume, QAudioInput *parent);
 
-    float m_volume = 1.;
-    bool m_muted = false;
-
     QAudioDevice m_audioDevice;
 
     // Gst elements
diff --git a/src/plugins/multimedia/gstreamer/common/qgstreameraudiooutput.cpp b/src/plugins/multimedia/gstreamer/common/qgstreameraudiooutput.cpp
index b12cae747..0f4d6fa29 100644
--- a/src/plugins/multimedia/gstreamer/common/qgstreameraudiooutput.cpp
+++ b/src/plugins/multimedia/gstreamer/common/qgstreameraudiooutput.cpp
@@ -58,9 +58,9 @@ QGstreamerAudioOutput::~QGstreamerAudioOutput()
     gstAudioOutput.setStateSync(GST_STATE_NULL);
 }
 
-void QGstreamerAudioOutput::setVolume(float vol)
+void QGstreamerAudioOutput::setVolume(float volume)
 {
-    audioVolume.set("volume", vol);
+    audioVolume.set("volume", volume);
 }
 
 void QGstreamerAudioOutput::setMuted(bool muted)
diff --git a/src/plugins/multimedia/gstreamer/common/qgstreameraudiooutput_p.h b/src/plugins/multimedia/gstreamer/common/qgstreameraudiooutput_p.h
index 2a478630e..2a936c63b 100644
--- a/src/plugins/multimedia/gstreamer/common/qgstreameraudiooutput_p.h
+++ b/src/plugins/multimedia/gstreamer/common/qgstreameraudiooutput_p.h
@@ -35,8 +35,8 @@ public:
     ~QGstreamerAudioOutput();
 
     void setAudioDevice(const QAudioDevice &) override;
-    void setVolume(float volume) override;
-    void setMuted(bool muted) override;
+    void setVolume(float) override;
+    void setMuted(bool) override;
 
     void setPipeline(const QGstPipeline &pipeline);