winaudio.h
上传用户:dangjiwu
上传日期:2013-07-19
资源大小:42019k
文件大小:9k
- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: winaudio.h,v 1.3.8.1 2004/07/09 02:02:07 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (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.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * 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 ***** */
- #ifndef _WINAUDIO_H_
- #define _WINAUDIO_H_
- struct IHXCallback;
- class CHXSimpleList;
- class CPtrQueue;
- #define WND_CLASS _T("AudioServicesInternal")
- #if defined( _WIN32 )
- typedef LPWAVEFORMATEX WAVEFMTPTR;
- #elif defined( _WINDOWS )
- typedef LPWAVEFORMAT WAVEFMTPTR;
- #endif
- typedef enum
- {
- HXAUDIO_UNKNOWN,
- HXAUDIO_BADDEVICE,
- HXAUDIO_GOODDEVICE
- } audioDevice;
- /****************************************************************************
- *
- * Class: CWindowsWaveFormat
- *
- * Purpose: Used to hide 16bit vs. 32bit bullsheet for the windows
- * wave format structs...
- */
- class CWindowsWaveFormat
- {
- public:
- CWindowsWaveFormat()
- {
- mpwf = NULL;
- SetFormatDflt();
- }
- ~CWindowsWaveFormat()
- {
- // if (mpwf != NULL)
- // delete [] mpwf;
- }
- void SetFormatDflt()
- {
- #if defined(_WIN32)
- mwf.wFormatTag = WAVE_FORMAT_PCM;
- mwf.nChannels = 1;
- mwf.nSamplesPerSec = 8000; // 11025;
- mwf.nAvgBytesPerSec = 16000; // 22050;
- mwf.nBlockAlign = 2;
- mwf.wBitsPerSample = 16;
- mwf.cbSize = 0;
- #else
- mwf.wf.wFormatTag = WAVE_FORMAT_PCM;
- mwf.wf.nChannels = 1;
- mwf.wf.nSamplesPerSec = 8000; // 11025;
- mwf.wf.nAvgBytesPerSec = 16000; // 22050;
- mwf.wf.nBlockAlign = 2;
- mwf.wBitsPerSample = 16;
- #endif
- }
- void SetFormat
- (
- ULONG32 inSampleRate,
- UINT16 channels,
- UINT16 bitsPerSample
- )
- {
- #if defined(_WIN32)
- mwf.wFormatTag = WAVE_FORMAT_PCM;
- mwf.nChannels = channels;
- mwf.nSamplesPerSec = inSampleRate; //8000; // 11025;
- // note this works for 1 or 2 channels only!!
- mwf.nAvgBytesPerSec = bitsPerSample <= 8 ? inSampleRate * channels
- : inSampleRate * channels * 2;
- mwf.nBlockAlign = bitsPerSample <= 8 ? 1 * channels : channels * 2;
- mwf.wBitsPerSample = bitsPerSample;
- mwf.cbSize = 0;
- #else
- mwf.wf.wFormatTag = WAVE_FORMAT_PCM;
- mwf.wf.nChannels = channels;
- mwf.wf.nSamplesPerSec = inSampleRate; //8000; // 11025;
- mwf.wf.nAvgBytesPerSec = bitsPerSample <= 8 ? inSampleRate * channels
- : inSampleRate * channels * 2;
- mwf.wf.nBlockAlign = bitsPerSample <= 8 ? 1 * channels : channels * 2;
- mwf.wBitsPerSample = bitsPerSample;
- #endif
- }
- WAVEFMTPTR GetWaveFormat()
- {
- // if (mpwf != NULL)
- // return (mpwf);
- return (WAVEFMTPTR(&mwf));
- }
- WORD GetWaveFormatSize ()
- {
- // if (mpwf != NULL) return (mcbWaveFmt);
- return (sizeof (mwf));
- }
- private:
- WAVEFMTPTR mpwf; // ptr to wave format header
- WORD mcbWaveFmt; // size of wave format header
- #if defined(_WIN32)
- WAVEFORMATEX mwf; // default PCM wave format header
- #else
- PCMWAVEFORMAT mwf; // default PCM wave format header
- #endif
- };
- /****************************************************************************
- *
- * Class: CWaveHeader
- *
- * Purpose: Manages a WAVEHDR struct, includes info about usage, etc.
- *
- */
- class CWaveHeader
- {
- public:
- ULONG32 m_ulTimeEnd;
- void* m_pUser; // General Purpose user object.
- protected:
- WAVEHDR m_WAVEHDR;
- BOOL m_bAvail;
- BOOL m_pPrepared;
- CWaveHeader()
- {
- memset( &m_WAVEHDR, 0, sizeof(m_WAVEHDR) );
- m_bAvail = FALSE;
- m_pPrepared = FALSE;
- m_ulTimeEnd = 0;
- m_pUser = NULL;
- }
- friend class CAudioOutWindows;
- };
- class CHXAudioDevice;
- class HXMutex;
- /****************************************************************************
- *
- * Class: CAudioOutWindows
- *
- * Purpose: Windows implementation of audio out
- *
- */
- class CAudioOutWindows : public CHXAudioDevice
- {
- public:
- CAudioOutWindows();
- #if defined(_WIN32)
- static LRESULT __declspec(dllexport) CALLBACK
- WaveOutWndProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam );
- #else
- static LRESULT CALLBACK __export
- WaveOutWndProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam );
- #endif
- protected:
- virtual ~CAudioOutWindows();
- HX_RESULT _Imp_Open( const HXAudioFormat* pFormat );
- HX_RESULT _Imp_Close( void );
- HX_RESULT _Imp_Seek(ULONG32 ulSeekTime);
- HX_RESULT _Imp_Pause( void );
- HX_RESULT _Imp_Resume( void );
- HX_RESULT _Imp_Write( const HXAudioData* pAudioOutData );
- HX_RESULT _Imp_Reset( void );
- HX_RESULT _Imp_Drain( void );
- BOOL _Imp_SupportsVolume( void );
- UINT16 _Imp_GetVolume( void );
- HX_RESULT _Imp_SetVolume( const UINT16 uVolume );
- HX_RESULT _Imp_CheckFormat( const HXAudioFormat* pFormat);
- HX_RESULT _Imp_GetCurrentTime( ULONG32& ulCurrentTime);
- INT16 _Imp_GetAudioFd(void) {return 0;};
- UINT16 _NumberOfBlocksRemainingToPlay(void);
- BOOL _IsWaveOutDevice(void) { return TRUE; };
- private:
- static BOOL zm_bVolSupport;
- static BOOL zm_bLRVolSupport;
- static WORD zm_uMaxVolume;
- static BOOL zm_bMixerVolSupport;
- static BOOL zm_bMixerVolSupportChecked;
- CWindowsWaveFormat m_WaveFormat;
- HWAVEOUT m_hWave;
- WAVEOUTCAPS m_waveOutCap;
- UINT16 m_unAllocedBufferCnt;
- UINT16 m_unAllocedBuffSize;
- UCHAR** m_ppAllocedBuffers;
- CWaveHeader* m_pWaveHdrs;
- CPtrQueue m_rAvailBuffers;
- CHXSimpleList m_UsedBuffersList;
- BOOL m_bInitialized;
- BOOL m_bResetting;
- HXMutex* m_pMutex;
-
- BOOL m_bIsFirstPacket;
- BOOL AllocateBuffers(UINT16 unNumBuffers, UINT16 unBufSize);
- HINSTANCE m_hInst;
- HWND m_hWnd;
- BOOL m_bClassRegistered;
- #if defined(_WIN32)
- UINT32 m_ulOriginalThreadId;
- #endif
- #if !defined(_WINCE) && ( !defined(_WINDOWS) || defined(_WIN32) )
- void CheckForVolumeSupport(void);
- HMIXER m_hMixer;
- MIXERCONTROLDETAILS m_VolumeControlDetails;
- #endif // !defined(_WINDOWS) || defined(_WIN32)
- HX_RESULT Register();
- void UnRegister();
- INT64 m_llDeviceBytesPlayed;
- INT64 m_llDeviceSamplesPlayed;
- UINT32 m_ulLastDeviceBytesPlayed;
- UINT32 m_ulLastDeviceSamplesPlayed;
- UINT32 m_ulDevPosRollOver;
- static audioDevice zm_audioDevice;
- static BOOL zm_bClosed;
- static UINT zm_uDestroyMessage;
- };
- #endif // _WINAUDIO_H_