VirtualBox

source: vbox/trunk/src/VBox/Devices/Audio/DrvHostAudioDSoundMMNotifClient.h@ 88913

Last change on this file since 88913 was 88853, checked in by vboxsync, 4 years ago

Audio: Reworking PDMIHOSTAUDIOPORT::pfnNotifyDevicesChanged a little, from now on it will only trigger re-enumeration (darwin still needs some adjusting). Use a timer to sligtly delay the enumeration and move it out of the re-init stream code, so that we don't redo it too frequently and that we do it even when there are active streams around. Made DrvHostAudioWasApi call pfnNotifyDevicesChanged. Reduced the DSound notification client code a little while adding pfnNotifyDeviceChanged calls to it. bugref:9890

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.6 KB
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1/* $Id: DrvHostAudioDSoundMMNotifClient.h 88853 2021-05-04 08:47:13Z vboxsync $ */
2/** @file
3 * Host audio driver - DSound - Implementation of the IMMNotificationClient interface to detect audio endpoint changes.
4 */
5
6/*
7 * Copyright (C) 2017-2020 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18#ifndef VBOX_INCLUDED_SRC_Audio_DrvHostAudioDSoundMMNotifClient_h
19#define VBOX_INCLUDED_SRC_Audio_DrvHostAudioDSoundMMNotifClient_h
20#ifndef RT_WITHOUT_PRAGMA_ONCE
21# pragma once
22#endif
23
24#include <iprt/critsect.h>
25#include <iprt/win/windows.h>
26
27/* Should fix warning in include\ks.h. */
28#ifndef _WIN64
29# ifdef RT_ARCH_X86
30# define _WIN64 1
31# else
32# define _WIN64 0
33# endif
34#endif
35
36#include <Mmdeviceapi.h>
37
38#include <VBox/vmm/pdmaudioifs.h>
39
40
41class DrvHostAudioDSoundMMNotifClient : public IMMNotificationClient
42{
43public:
44
45 DrvHostAudioDSoundMMNotifClient(PPDMIHOSTAUDIOPORT pInterface, bool fDefaultIn, bool fDefaultOut);
46 virtual ~DrvHostAudioDSoundMMNotifClient();
47
48 HRESULT Initialize();
49
50 HRESULT Register(void);
51 void Unregister(void);
52
53 /** @name IUnknown interface
54 * @{ */
55 IFACEMETHODIMP_(ULONG) Release();
56 /** @} */
57
58private:
59
60 bool m_fDefaultIn;
61 bool m_fDefaultOut;
62 bool m_fRegisteredClient;
63 IMMDeviceEnumerator *m_pEnum;
64 IMMDevice *m_pEndpoint;
65
66 long m_cRef;
67
68 PPDMIHOSTAUDIOPORT m_pIAudioNotifyFromHost;
69
70 /** @name IMMNotificationClient interface
71 * @{ */
72 IFACEMETHODIMP OnDeviceStateChanged(LPCWSTR pwstrDeviceId, DWORD dwNewState);
73 IFACEMETHODIMP OnDeviceAdded(LPCWSTR pwstrDeviceId);
74 IFACEMETHODIMP OnDeviceRemoved(LPCWSTR pwstrDeviceId);
75 IFACEMETHODIMP OnDefaultDeviceChanged(EDataFlow flow, ERole role, LPCWSTR pwstrDefaultDeviceId);
76 IFACEMETHODIMP OnPropertyValueChanged(LPCWSTR /*pwstrDeviceId*/, const PROPERTYKEY /*key*/) { return S_OK; }
77 /** @} */
78
79 /** @name IUnknown interface
80 * @{ */
81 IFACEMETHODIMP QueryInterface(const IID& iid, void** ppUnk);
82 IFACEMETHODIMP_(ULONG) AddRef();
83 /** @} */
84};
85#endif /* !VBOX_INCLUDED_SRC_Audio_DrvHostAudioDSoundMMNotifClient_h */
86
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