2 * Core Audio audio policy definitions
4 * Copyright 2009 Maarten Lankhorst
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 cpp_quote("#ifndef __audiopolicy_h__")
23 cpp_quote("#define __audiopolicy_h__")
28 import "audiosessiontypes.h";
29 import "audioclient.idl";
31 interface IAudioSessionEvents;
32 interface IAudioSessionControl;
33 interface IAudioSessionControl2;
34 interface IAudioSessionManager;
35 interface IAudioVolumeDuckNotification;
36 interface IAudioSessionNotification;
37 interface IAudioSessionEnumerator;
38 interface IAudioSessionManager2;
40 typedef enum AudioSessionDisconnectReason /*[local]*/
42 DisconnectReasonDeviceRemoval = 0,
43 DisconnectReasonServerShutdown,
44 DisconnectReasonFormatChanged,
45 DisconnectReasonSessionLogoff,
46 DisconnectReasonSessionDisconnected,
47 DisconnectReasonExclusiveModeOverride,
48 } AudioSessionDisconnectReason;
52 uuid(24918acc-64b3-37c1-8ca9-74a66e9957a8),
53 pointer_default(unique),
56 interface IAudioSessionEvents : IUnknown
58 HRESULT OnDisplayNameChanged(
59 [string,in] LPCWSTR NewDisplayName,
60 [in] LPCGUID EventContext
62 HRESULT OnIconPathChanged(
63 [string,in] LPCWSTR NewIconPath,
64 [in] LPCGUID EventContext
66 HRESULT OnSimpleVolumeChanged(
69 [in] LPCGUID EventContext
71 HRESULT OnChannelVolumeChanged(
72 [in] DWORD ChannelCount,
73 [size_is(ChannelCount),in] float *NewChannelVolumeArray,
74 [in] DWORD ChangedChannel,
75 [in] LPCGUID EventContext
77 HRESULT OnGroupingParamChanged(
78 [in] LPCGUID NewGroupingParam,
79 [in] LPCGUID EventContext
81 HRESULT OnStateChanged(
82 [in] AudioSessionState NewState
84 HRESULT OnSessionDisconnected(
85 [in] AudioSessionDisconnectReason DisconnectReason
91 uuid(f4b1a599-7266-4319-a8ca-e70acb11e8cd),
92 pointer_default(unique),
95 interface IAudioSessionControl : IUnknown
98 [out] AudioSessionState *pRetVal
100 HRESULT GetDisplayName(
101 [string,out] LPWSTR *pRetVal
103 HRESULT SetDisplayName(
104 [string,in] LPCWSTR DisplayName,
105 [unique,in] LPCGUID EventContext
108 [string,out] LPWSTR *pRetVal
111 [string,in] LPCWSTR Value,
112 [unique,in] LPCGUID EventContext
114 HRESULT GetGroupingParam(
117 HRESULT SetGroupingParam(
118 [in] LPCGUID Override,
119 [unique,in] LPCGUID EventContext
121 HRESULT RegisterAudioSessionNotification(
122 [in] IAudioSessionEvents *NewNotifications
124 HRESULT UnregisterAudioSessionNotification(
125 [in] IAudioSessionEvents *NewNotifications
131 uuid(bfb7ff88-7239-4fc9-8fa2-07c950be9c6d),
132 pointer_default(unique),
135 interface IAudioSessionControl2 : IAudioSessionControl
137 HRESULT GetSessionIdentifier(
138 [string,out] LPWSTR *pRetVal
140 HRESULT GetSessionInstanceIdentifier(
141 [string,out] LPWSTR *pRetVal
143 HRESULT GetProcessId(
146 HRESULT IsSystemSoundsSession(void);
147 HRESULT SetDuckingPreferences(
154 uuid(bfa971f1-4d5e-40bb-935e-967039bfbee4),
155 pointer_default(unique),
158 interface IAudioSessionManager : IUnknown
160 HRESULT GetAudioSessionControl(
161 [in] LPCGUID AudioSessionGuid,
162 [in] DWORD StreamFlags,
163 [out] IAudioSessionControl **SessionControl
165 HRESULT GetSimpleAudioVolume(
166 [in] LPCGUID AudioSessionGuid,
167 [in] DWORD StreamFlags,
168 [out] ISimpleAudioVolume **AudioVolume
174 uuid(c3b284d4-6d39-4359-b3cf-b56ddb3bb39c),
175 pointer_default(unique),
178 interface IAudioVolumeDuckNotification : IUnknown
180 HRESULT OnVolumeDuckNotification(
181 [in] LPCWSTR sessionID,
182 [in] UINT32 countCommunicationSessions
184 HRESULT OnVolumeUnduckNotification(
185 [in] LPCWSTR sessionID
191 uuid(641dd20b-4d41-49cc-aba3-174b9477bb08),
192 pointer_default(unique),
195 interface IAudioSessionNotification : IUnknown
197 HRESULT OnSessionCreated(
198 [in] IAudioSessionControl *NewSession
204 uuid(e2f5bb11-0570-40ca-acdd-3aa01277dee8),
205 pointer_default(unique),
208 interface IAudioSessionEnumerator : IUnknown
211 [out] INT *SessionCount
214 [in] INT SessionCount,
215 [out] IAudioSessionControl **Session
221 uuid(77aa99a0-1bd6-484f-8bc7-2c654c9a9b6f),
222 pointer_default(unique),
225 interface IAudioSessionManager2 : IAudioSessionManager
227 HRESULT GetSessionEnumerator(
228 [retval,out] IAudioSessionEnumerator **SessionEnum
230 HRESULT RegisterSessionNotification(
231 [in] IAudioSessionNotification *SessionNotification
233 HRESULT UnregisterSessionNotification(
234 [in] IAudioSessionNotification *SessionNotification
236 HRESULT RegisterDuckNotification(
237 [string,in] LPCWSTR sessionID,
238 [in] IAudioVolumeDuckNotification *duckNotification
240 HRESULT UnregisterDuckNotification(
241 [in] IAudioVolumeDuckNotification *duckNotification
245 cpp_quote("#endif /*__audiopolicy_h__*/")