hxaudstr.h
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: hxaudstr.h,v 1.10.8.1 2004/07/09 02:08:04 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 _HXAUSTR_H_
- #define _HXAUSTR_H_
- #include "hxcomm.h"
- #include "hxcore.h"
- #include "mixengine.h"
- // forward decls
- class CHXAudioPlayer;
- class CHXSimpleList;
- class CHXMapPtrToPtr;
- class CHXBuffer;
- #if defined(HELIX_FEATURE_CROSSFADE)
- class CrossFader;
- #endif /* HELIX_FEATURE_CROSSFADE */
- #ifdef _MACINTOSH
- class HXAudioMacQueue;
- #endif
- _INTERFACE IHXAudioStream;
- _INTERFACE IHXAudioStream2;
- _INTERFACE IHXBuffer;
- _INTERFACE IHXValues;
- _INTERFACE IHXAudioHook;
- _INTERFACE IHXDryNotification;
- _INTERFACE IHXRealAudioSync;
- _INTERFACE IHXCommonClassFactory;
- _INTERFACE IHXUpdateProperties;
- struct RealAudioBytesToTimeStamp
- {
- RealAudioBytesToTimeStamp()
- {
- m_ulOutNumBytes = 0.;
- m_ulOrigTimestamp = 0;
- m_ulTimestamp = 0;
- m_ulInTimestamp = 0;
- m_ulInEndTime = 0;
- m_ulDuration = 0;
- }
- double m_ulOutNumBytes;
- UINT32 m_ulOrigTimestamp; // needed for multi-player pause/resume support
- UINT32 m_ulTimestamp;
- UINT32 m_ulInTimestamp;
- UINT32 m_ulInEndTime;
- UINT32 m_ulDuration;
- };
- struct HXAudioInfo;
- /****************************************************************************
- *
- * Class:
- *
- * CHXAudioStream
- *
- * Purpose:
- *
- * PN implementation of audio stream object.
- *
- */
- class CHXAudioStream: public IHXAudioStream,
- public IHXRealAudioSync,
- public IHXAudioStream2,
- public CAudioSvcSampleConverter,
- public IHXCommonClassFactory,
- #ifdef HELIX_FEATURE_VOLUME
- public IHXVolumeAdviseSink,
- #endif
- public IHXUpdateProperties
- {
- public:
- CHXAudioStream( CHXAudioPlayer* owner, IUnknown* pContext );
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj);
- STDMETHOD_(ULONG32,AddRef) (THIS);
- STDMETHOD_(ULONG32,Release) (THIS);
- /*
- * IHXAudioStream methods
- */
- STDMETHOD(Init) (THIS_
- const HXAudioFormat* pAudioFormat,
- IHXValues* pValues
- );
- STDMETHOD(Write) (THIS_
- HXAudioData* pAudioData
- );
- STDMETHOD(AddPreMixHook) (THIS_
- IHXAudioHook* pHook,
- const BOOL bDisableWrite
- );
- STDMETHOD(RemovePreMixHook) (THIS_
- IHXAudioHook* pHook
- );
- #ifdef HELIX_FEATURE_VOLUME
- //
- // IHXVolumeAdviseSink methods.
- //
- STDMETHOD(OnVolumeChange)(THIS_ const UINT16 uVolume);
- STDMETHOD(OnMuteChange)(THIS_ const BOOL bMute);
- #endif
- /************************************************************************
- * Method:
- * IHXAudioStream::AddDryNotification
- * Purpose:
- * Use this to add a notification response object to get notifications
- * when audio stream is running dry.
- */
- STDMETHOD(AddDryNotification) (THIS_
- IHXDryNotification* /*IN*/ pNotification
- );
-
- /************************************************************************
- * Method:
- * IHXAudioStream2::RemoveDryNotification
- * Purpose:
- * Use this to remove itself from the notification response object
- * during the stream switching.
- */
- STDMETHOD(RemoveDryNotification) (THIS_
- IHXDryNotification* /*IN*/ pNotification
- );
- /************************************************************************
- * Method:
- * IHXAudioStream2::GetAudioFormat
- * Purpose:
- * Returns the input audio format of the data written by the
- * renderer. This function will fill in the pre-allocated
- * HXAudioFormat structure passed in.
- */
- STDMETHOD(GetAudioFormat) (THIS_
- HXAudioFormat* /*IN/OUT*/pAudioFormat);
- STDMETHOD_(IHXValues*,GetStreamInfo) (THIS)
- {
- if (m_pValues)
- {
- m_pValues->AddRef();
- }
- return m_pValues ;
- };
- /* Return the this stream's volume interface. */
- STDMETHOD_(IHXVolume*, GetAudioVolume) (THIS);
- /*
- * IHXRealAudioSync methods
- */
- /************************************************************************
- * Method:
- * IHXRealAudioSync::Register
- * Purpose:
- */
- STDMETHOD(Register) (THIS);
- /************************************************************************
- * Method:
- * IHXRealAudioSync::UnRegister
- * Purpose:
- */
- STDMETHOD(UnRegister) (THIS);
- /************************************************************************
- * Method:
- * IHXRealAudioSync::FudgeTimestamp
- * Purpose:
- * Tell the audio stream about the relationship between the number
- * of bytes written to the actual timestamp.
- *
- */
- STDMETHOD(FudgeTimestamp) (THIS_
- UINT32 /*IN*/ ulNumberofBytes,
- UINT32 /*IN*/ ulTimestamp
- );
- /*
- * IHXCommonClassFactory methods
- */
- /************************************************************************
- * Method:
- * IHXCommonClassFactory::CreateInstance
- * Purpose:
- * Creates instances of common objects supported by the system,
- * like IHXBuffer, IHXPacket, IHXValues, etc.
- *
- * This method is similar to Window's CoCreateInstance() in its
- * purpose, except that it only creates objects of a well known
- * types.
- *
- * NOTE: Aggregation is never used. Therefore and outer unknown is
- * not passed to this function, and you do not need to code for this
- * situation.
- */
- STDMETHOD(CreateInstance) (THIS_
- REFCLSID /*IN*/ rclsid,
- void** /*OUT*/ ppUnkown);
- /************************************************************************
- * Method:
- * IHXController::CreateInstanceAggregatable
- * Purpose:
- * Creates instances of common objects that can be aggregated
- * supported by the system, like IHXSiteWindowed
- *
- * This method is similar to Window's CoCreateInstance() in its
- * purpose, except that it only creates objects of a well known
- * types.
- *
- * NOTE 1: Unlike CreateInstance, this method will create internal
- * objects that support Aggregation.
- *
- * NOTE 2: The output interface is always the non-delegating
- * IUnknown.
- */
- STDMETHOD(CreateInstanceAggregatable)
- (THIS_
- REFCLSID /*IN*/ rclsid,
- REF(IUnknown*) /*OUT*/ ppUnknown,
- IUnknown* /*IN*/ pUnkOuter);
- /************************************************************************
- * Method:
- * IHXUpdateProperties::UpdatePacketTimeOffset
- * Purpose:
- * Call this method to update the timestamp offset of cached packets
- */
- STDMETHOD(UpdatePacketTimeOffset) (THIS_
- INT32 lTimeOffset);
- /************************************************************************
- * Method:
- * IHXUpdateProperties::UpdatePlayTimes
- * Purpose:
- * Call this method to update the playtime attributes
- */
- STDMETHOD(UpdatePlayTimes) (THIS_
- IHXValues* pProps);
-
- /*
- * CHXAudioStream methods
- */
- HX_RESULT Setup (
- HXAudioFormat* pFormat
- , ULONG32 ulGranularity
- );
- HX_RESULT GetFormat( HXAudioFormat* pAudioFormat );
- HX_RESULT MixIntoBuffer(
- UCHAR* pBuf,
- ULONG32 ulBufSize,
- ULONG32& ulBufTime,
- BOOL& bIsMixBufferDirty,
- BOOL bGetCrossFadeData = FALSE
- );
- ULONG32 MixData(
- UCHAR* pDestBuf
- , ULONG32 ulBufLen
- , BOOL bMonoToStereoMayBeConverted
- , BOOL& bIsMixBufferDirty);
- BOOL IsInitialized(void) {return m_bInited;};
- BOOL IsAudioFormatKnown(void) {return m_bAudioFormatKnown;};
- inline void SetLive(BOOL bIsLive)
- {
- if (m_bIsFirstPacket)
- {
- m_bIsLive = bIsLive;
- }
- }
- void SetupToBeDone() {m_bSetupToBeDone = TRUE;};
- HX_RESULT StartCrossFade(CHXAudioStream* pFromStream,
- UINT32 ulCrossFadeStartTime,
- UINT32 ulCrossFadeDuration,
- BOOL bToStream);
- HX_RESULT ConvertCurrentTime(double dBytesPlayed,
- UINT32 ulCurrentTime,
- UINT32& ulAdjustedTime);
-
- void SyncStream(INT64 llSyncTime);
- void FreeInfo(HXAudioInfo* pInfo, BOOL bInstantaneous = FALSE);
- void FreeBuffer(IHXBuffer* pBuffer);
- #ifdef _MACINTOSH
- INT64 GetLastAudioWriteTime() {return m_llLastWriteTime - (INT64)(UINT64)m_ulBaseTime;};
- #else
- INT64 GetLastAudioWriteTime() {return m_llLastWriteTime - (INT64)m_ulBaseTime;};
- #endif
- void UpdateStreamLastWriteTime(BOOL bForceUpdate = FALSE);
- void SaveLastNMilliSeconds(BOOL bSave, UINT32 ulNMilliSeconds);
- void RewindStream(UINT32 ulTimeToRewind);
- void Pause(BOOL bPlayerPause = FALSE);
- void Resume(BOOL bPlayerResume = FALSE);
- void Stop(void);
- void Seek(UINT32 ulSeekTime);
- EPlayerState GetState(void) { return m_eState; };
- void SetSoundLevel(float fSoundLevel);
- void SetAudioDeviceReflushHint(BOOL bSupported);
- BOOL IsAudioDeviceReflushHint(void) { return m_bAudioDeviceReflushHint; };
- void RollBackTimestamp();
- CHXAudioPlayer* m_Owner;
- BOOL m_bMayNeedToRollbackTimestamp;
- virtual void ResetStream(void);
- virtual HX_RESULT ProcessAudioHook(PROCESS_ACTION action,
- IHXAudioHook* pAudioHook);
- // CAudioSvcSampleConverter method
- virtual BOOL ConvertIntoBuffer(tAudioSample* buffer, UINT32 nSamples, INT64 llStartTimeInSamples) ;
- protected:
- LONG32 m_lRefCount;
- HX_RESULT m_wLastError;
- BOOL m_bInited; // Set to TRUE after buffer is created.
- BOOL m_bSetupDone;
- BOOL m_bAudioFormatKnown;
- BOOL m_bIsResumed;
- BOOL m_bPlayerPause;
- HXAudioFormat m_AudioFmt; // This streams format
- HXAudioFormat m_DeviceFmt; // The audio device format
- IHXAudioResampler* m_pResampler; // Id used by resampling code
- void* m_pInterpId; // Id used by linear interpolator code
- IHXValues* m_pValues;
- BOOL m_bDisableWrite;
- #if defined(HELIX_FEATURE_AUDIO_PREMIXHOOK)
- CHXMapPtrToPtr m_PreMixHookMap;
- #endif
-
- CHXMapPtrToPtr* m_DryNotificationMap;
- ULONG32 m_ulGranularity; // Play at least this amt of audio
- ULONG32 m_ulInputBytesPerGran; // Number of bytes for this amt of audio
- ULONG32 m_ulOutputBytesPerGran; // Number of bytes for this amt of audio
- ULONG32 m_ulExcessInterpBufferSize; // Number of bytes for this amt of audio
- ULONG32 m_ulPreviousExcessInterpBufferSize;
- BOOL m_bFirstWrite;
- ULONG32 m_ulMaxBlockSize; // Size of resampled data buffer
- UCHAR* m_pResampleBuf; // Resampler output buffer
- UCHAR* m_pTmpResBuf; // Tmp resample buffer
- UCHAR* m_pCrossFadeBuffer; // Tmp resample buffer
- UCHAR* m_pExcessInterpBuffer;
- UCHAR* m_pTempInterpBuffer;
- UINT32 m_ulCrossFadeBufferSize;
- float m_fVolume; // Stream volume level
- BOOL m_bChannelConvert; // if TRUE convert mono->stereo
- UINT16 m_uVolume; // Stream's current volume.
- BOOL m_bMute;
- BOOL m_bGotHooks; // if TRUE if this stream has hooks
- INT64 m_llLastWriteTime; // Time of last buffer written
- ULONG32 m_ulFudge; // The fudge factor for detecting gaps
- BOOL m_bHooksInitialized;
- HXAudioData* m_pInDataPtr;
- HXAudioData* m_pOutDataPtr;
- CHXSimpleList* m_pDataList; // Audio data list
- CHXSimpleList* m_pInstantaneousList; // Instantaneous data list
- CHXSimpleList* m_pRAByToTsInList;
- CHXSimpleList* m_pRAByToTsAdjustedList;
- #if defined(HELIX_FEATURE_CROSSFADE)
- CrossFader* m_pCrossFader;
- #else
- void* m_pCrossFader;
- #endif /* HELIX_FEATURE_CROSSFADE */
- IHXCommonClassFactory* m_pCommonClassFactory;
- IHXPreferences* m_pPreferences;
-
- #ifdef _MACINTOSH
- HXAudioMacQueue* m_pAvailableBuffers;
- #else
- CHXSimpleList* m_pAvailableBuffers;
- #endif
-
- UINT16 m_uCacheSize;
- BOOL m_bDeterminedInitialCacheSize;
- BOOL m_bCacheMayBeGrown;
- BOOL m_bTobeTimed;
- BOOL m_bIsFirstPacket;
- BOOL m_bIsLive;
- BOOL m_bSetupToBeDone;
- UINT32 m_ulBaseTime;
- BOOL m_bCrossFadingToBeDone;
- CHXAudioStream* m_pCrossFadeStream;
- INT64 m_llCrossFadeStartTime;
- UINT32 m_ulCrossFadeDuration;
- BOOL m_bFadeToThisStream;
- BOOL m_bFadeAlreadyDone;
- BOOL m_bRealAudioStream;
- UINT32 m_ulLastInputStartTime;
- UINT32 m_ulLastInputEndTime;
- INT64 m_llLastStartTimePlayed;
- UINT32 m_ulTSRollOver;
- UINT32 m_ulLiveDelay;
- HX_BITFIELD m_bLastWriteTimeUpdated : 1;
- HX_BITFIELD m_bAudioDeviceReflushHint : 1;
- HX_BITFIELD m_bLastNMilliSecsToBeSaved : 1;
- UINT32 m_ulLastNMilliSeconds;
- CHXSimpleList* m_pLastNMilliSecsList;
- UINT32 m_ulLastNHeadTime;
- UINT32 m_ulLastNTailTime;
- EPlayerState m_eState;
- HX_BITFIELD m_bCanBeRewound : 1;
- /*
- * Left around for future debugging
- FILE* fdbefore;
- FILE* fdbeforetxt;
- FILE* fdafter;
- FILE* fdaftertxt;
- FILE* fdin;
- */
- virtual ~CHXAudioStream();
- PRIVATE_DESTRUCTORS_ARE_NOT_A_CRIME
- void InitHooks();
- HX_RESULT ProcessHooks(HXAudioData* pInData
- ,HXAudioData* pOutData);
- HX_RESULT AddData (HXAudioData* pData);
- HX_RESULT SetupResampler(void);
- ULONG32 CalcMs( ULONG32 ulNumBytes );
- ULONG32 CalcDeviceMs( ULONG32 ulNumBytes );
-
- UINT32 CalcOffset(INT64 llStartTime, INT64 llEndTime);
- void FlushBuffers(BOOL bInstantaneousAlso = TRUE);
- HX_RESULT ProcessInfo(void);
- BOOL EnoughDataAvailable(INT64& llStartTimeInSamples, UINT32& nSamplesRequired);
- void CleanupRAByToTs(void);
- void MapFudgedTimestamps(void);
- void InitializeCrossFader(void);
- void RemoveExcessCrossFadeData();
- private:
- HXAudioSvcMixEngine *m_pMixEngine ;
- static UINT32 Bytes2Samples(UINT64 ulNumBytes, const HXAudioFormat *fmt) ;
- static UINT64 Samples2Ms(INT64 nSamples, const HXAudioFormat *fmt) ;
- // variables to estimate the true sample rate
- INT64 m_startMeasureTime ;
- INT32 m_totSamples ;
- // how many samples apart may the mixes lie until we don't recognize them anymore
- // as contiguous? Essentially, this should be sample rate * [error in time stamps]
- enum { MIXTIMEFUDGEINSAMPLES = 400 } ;
- // we need these to correct for incoming data containing incomplete
- // sample frames.
- IHXBuffer* m_piPendingAudioData ;
- UINT32 m_ulPendingAudioBytes ; // size in bytes of the slush buffer content
- UINT32 m_ulSampleFrameSize ; // size in bytes of a sample frame, i.e. 2*nChannels
- // Write() backend function
- HX_RESULT Write2(HXAudioData* pAudioData) ;
- #ifdef HELIX_FEATURE_VOLUME
- IHXVolume* m_pStreamVolume;
- #endif
- };
- #ifdef _MACINTOSH
- struct HXAudioMacQueueElement
- {
- HXAudioMacQueueElement *mNextElementInQueue; // link must be first member
- void *mObject;
- };
- class HXAudioMacQueue
- {
- protected:
-
- QHdr mQueueHeader;
- Boolean mDestructing;
- unsigned long m_nCount;
-
- public:
-
- HXAudioMacQueue(void);
- ~HXAudioMacQueue(void); // decrements the ref on the irma nodes (via release)
-
- void* RemoveHead(void);
- HX_RESULT AddTail(void* pObject); // increments the ref
- UINT32 GetCount();
- };
- #endif // _MACINTOSH
- #endif /* HXAUSTR_H_ */