audio_svr.h
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
-
- /*
- * Description:
- *
- * This file contains three class definitions; HXSymbianAudioServer,
- * HXSymbianAudioSession, and HXSymbianAudioClient. Their purpose is
- * to allow us to hide the Symbian CMdaAudioOutputStream interface.
- *
- */
- #ifndef _AUDIO_SVR_H
- #define _AUDIO_SVR_H
- #include <stdio.h>
- #include <e32base.h>
- #include <bacntf.h>
- #include "hxcom.h"
- #include "hxausvc.h"
- /*
- * class HXSymbianAudioServer
- *
- * This class specializes the Symbian OS CServer class in order to
- * implement a server to respond to requests from one or more clients.
- */
- class HXSymbianAudioServer : public CServer {
- public:
- HXSymbianAudioServer();
- virtual ~HXSymbianAudioServer();
- enum Commands {
- EAS_Init,
- EAS_Write,
- EAS_CancelWrite,
- EAS_Play,
- EAS_Pause,
- EAS_GetTime,
- EAS_GetBlocksBuffered,
- EAS_SetVolume,
- EAS_GetVolume,
- EAS_GetMaxVolume,
- EAS_GetMinVolume,
- EAS_Stop,
- EAS_RequestDeviceTakenNotification,
- EAS_CancelDeviceTakenNotification
- };
- virtual CSharableSession* NewSessionL(const TVersion& aVersion) const;
- void AddSession();
- void DelSession();
- TInt RunError(TInt aError);
- void NotifyDeviceTaken();
- static HBufC* AllocServerName();
- private:
- int m_sessionCount; // session count
- };
- /*
- * class HXSymbianAudioClient
- *
- */
- class HXSymbianAudioClient : public RSessionBase {
- public:
- HXSymbianAudioClient();
- // initialize audio device
- TInt Init(int channels, int sampleRate);
- TInt Write(const IHXBuffer* pAudioBuf);
- void Write(const IHXBuffer* pAudioBuf, TRequestStatus& aStatus);
- void CancelWrite();
- // get the current time played out in ms
- TUint GetTime();
- // get the number of blocks buffered in device
- TUint GetBlocksBuffered();
- // enable playback
- TInt Play();
- // pause playback
- void Pause();
- // stop playback
- void Stop();
- // returns true if not playing
- bool Stopped();
- // get the current volume
- TInt GetVolume() const;
- // get the max volume
- TInt GetMaxVolume() const;
- // get the min volume
- TInt GetMinVolume() const;
- // set the current volume
- void SetVolume(TInt volume);
-
- void RequestDeviceTakenNotification(TRequestStatus& status);
- void CancelDeviceTakenNotification();
- // start a session with the server
- TInt Connect();
- private:
- bool m_stopped;
- };
- #endif // _AUDIO_SVR_H