[Webkit-unassigned] [Bug 279534] New: Fix -Wcast-function-type-mismatch in CoreAudioSharedUnit.mm

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=279534

            Bug ID: 279534
           Summary: Fix -Wcast-function-type-mismatch in
                    CoreAudioSharedUnit.mm
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ddkilzer at webkit.org

Fix -Wcast-function-type-mismatch in CoreAudioSharedUnit.mm.

The static speechActivityListenerCallback() function has a `void` return type, but `AudioObjectPropertyListenerProc` has an `int` return type.

Source/WebCore/platform/mediastream/mac/CoreAudioSharedUnit.mm:68:92: error: cast from 'void (*)(AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void *)' (aka 'void (*)(unsigned int, unsigned int, const AudioObjectPropertyAddress *, void *)') to 'AudioObjectPropertyListenerProc' (aka 'int (*)(unsigned int, unsigned int, const AudioObjectPropertyAddress * _Nonnull, void * _Nullable)') converts to incompatible function type [-Werror,-Wcast-function-type-mismatch]
   68 |         error = AudioObjectRemovePropertyListener(deviceID, &kVoiceActivityDetectionState, (AudioObjectPropertyListenerProc)speechActivityListenerCallback, NULL);
      |                                                                                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Source/WebCore/platform/mediastream/mac/CoreAudioSharedUnit.mm:73:85: error: cast from 'void (*)(AudioObjectID, UInt32, const AudioObjectPropertyAddress *, void *)' (aka 'void (*)(unsigned int, unsigned int, const AudioObjectPropertyAddress *, void *)') to 'AudioObjectPropertyListenerProc' (aka 'int (*)(unsigned int, unsigned int, const AudioObjectPropertyAddress * _Nonnull, void * _Nullable)') converts to incompatible function type [-Werror,-Wcast-function-type-mismatch]
   73 |     error = AudioObjectAddPropertyListener(deviceID, &kVoiceActivityDetectionState, (AudioObjectPropertyListenerProc)speechActivityListenerCallback, NULL);
      |                                                                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 errors generated.

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