AVFoundation plugin (iOS) fix minor build problems

Delete unused functions, move the unused (on iOS) declaration into
the corresponding macOS-specific part of code.
Minor: update some copyright headers (dates).

Change-Id: Ie46452b705db6d7a5918273849b4cffc752a9660
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Doris Verria <doris.verria@qt.io>
(cherry picked from commit 476137ff3307c8d868c9aff71d2bd9fd404113cb)

2 files changed, 4 insertions, 28 deletions

diff --git a/src/multimedia/platform/darwin/audio/qdarwinaudiosource.mm b/src/multimedia/platform/darwin/audio/qdarwinaudiosource.mm
index 17754518b..60b3ee77f 100644
--- a/src/multimedia/platform/darwin/audio/qdarwinaudiosource.mm
+++ b/src/multimedia/platform/darwin/audio/qdarwinaudiosource.mm
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies).
+** Copyright (C) 2022 The Qt Company Ltd and/or its subsidiary(-ies).
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the Qt Toolkit.
@@ -487,8 +487,6 @@ bool QDarwinAudioSource::open()
     if (m_isOpen)
         return true;
 
-    UInt32  size = 0;
-
     AudioComponentDescription componentDescription;
     componentDescription.componentType = kAudioUnitType_Output;
 #if defined(Q_OS_OSX)
@@ -567,6 +565,7 @@ bool QDarwinAudioSource::open()
     m_streamFormat = CoreAudioUtils::toAudioStreamBasicDescription(m_audioFormat);
 
 #if defined(Q_OS_OSX)
+    UInt32  size = 0;
     if (m_audioFormat == m_audioDeviceInfo.preferredFormat()) {
 #endif
 
diff --git a/src/multimedia/platform/darwin/camera/avfcamera.mm b/src/multimedia/platform/darwin/camera/avfcamera.mm
index ede3c49eb..a0f890a39 100644
--- a/src/multimedia/platform/darwin/camera/avfcamera.mm
+++ b/src/multimedia/platform/darwin/camera/avfcamera.mm
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies).
+** Copyright (C) 2022 The Qt Company Ltd and/or its subsidiary(-ies).
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the Qt Toolkit.
@@ -56,29 +56,6 @@ namespace {
 
 // Misc. helpers to check values/ranges:
 
-bool qt_check_ISO_conversion(float isoValue)
-{
-    if (isoValue >= std::numeric_limits<int>::max())
-        return false;
-    if (isoValue <= std::numeric_limits<int>::min())
-        return false;
-    return true;
-}
-
-bool qt_check_ISO_range(AVCaptureDeviceFormat *format)
-{
-    // Qt is using int for ISO, AVFoundation - float. It looks like the ISO range
-    // at the moment can be represented by int (it's max - min > 100, etc.).
-    Q_ASSERT(format);
-    if (format.maxISO - format.minISO < 1.) {
-        // ISO is in some strange units?
-        return false;
-    }
-
-    return qt_check_ISO_conversion(format.minISO)
-           && qt_check_ISO_conversion(format.maxISO);
-}
-
 bool qt_check_exposure_duration(AVCaptureDevice *captureDevice, CMTime duration)
 {
     Q_ASSERT(captureDevice);
@@ -565,7 +542,7 @@ void AVFCamera::zoomTo(float factor, float rate)
     if (rate < 0)
         captureDevice.videoZoomFactor = factor;
     else
-        [AVCaptureDevice rampToVideoZoomFactor:factor withRate:rate];
+        [captureDevice rampToVideoZoomFactor:factor withRate:rate];
 #endif
 }