hxaudstr_new.cpp

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: hxaudstr_new.cpp,v 1.21.2.1 2004/07/09 02:08:08 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 ***** */

#include "hlxclib/stdio.h" 
#include "hlxclib/string.h"



#include "hxresult.h"
#include "hxtypes.h"

#include "hxcom.h"
#include "hxengin.h"
#include "ihxpckts.h"
#include "hxbuffer.h"
#include "hxausvc.h"
#include "hxrasyn.h"
#include "hxprefs.h"
#include "hxerror.h"

#include "errdbg.h"
#include "chxpckts.h"
#include "hxaudply.h"
#include "hxaudstr.h"
#include "hxaudses.h"
#include "hxaudvol.h"	

#include "mixengine.h"

#include "hxslist.h"
#include "hxmap.h"
#include "auderrs.h"

#include "hxtick.h"

#include "hxheap.h"
#ifdef _DEBUG
#undef HX_THIS_FILE		
static const char HX_THIS_FILE[] = __FILE__;
#endif

#define CACHE_INCREMENT_SIZE	2

//#define _TESTING    1
#ifdef _TESTING
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>

#if defined (_WINDOWS) || defined (_WIN32)

#include <io.h>

#endif

int g_log = -1;
#endif

/************************************************************************
 *  Method:
 *		IHXAudioStream::CHXAudioStream()
 *	Purpose:
 *		Constructor. 
 */
CHXAudioStream::CHXAudioStream(CHXAudioPlayer* owner, IUnknown* pContext)
:       m_lRefCount(0)
,       m_wLastError(HXR_OK)
,       m_pResampler(NULL)
,       m_pValues(0)
,       m_bDisableWrite(FALSE)
,       m_ulGranularity(0)
,	m_ulInputBytesPerGran(0)
,	m_ulOutputBytesPerGran(0)
,       m_pDataList(0)
,	m_pInstantaneousList(0)
,	m_pRAByToTsInList(0)
,	m_pRAByToTsAdjustedList(0)
,       m_bFirstWrite(TRUE)
,	m_bHooksInitialized(FALSE)
,       m_bInited(FALSE)
,	m_bSetupDone(FALSE)
,	m_bAudioFormatKnown(FALSE)
,       m_ulMaxBlockSize(0)
,       m_uVolume(HX_MAX_VOLUME)
,	m_bMute(FALSE)
,       m_bGotHooks(FALSE)
,	m_llLastWriteTime(0)
,	m_ulFudge(5)
,	m_pInDataPtr(0)
,       m_pOutDataPtr(0)
,	m_bTobeTimed(TRUE)
,	m_bIsFirstPacket(TRUE)
,	m_bIsLive(FALSE)
,	m_ulBaseTime(0)
,	m_ulLiveDelay(0)
,	m_bSetupToBeDone(FALSE)
,       m_bCrossFadingToBeDone(FALSE)
,       m_pCrossFadeStream(NULL)
,       m_llCrossFadeStartTime(0)
,       m_ulCrossFadeDuration(0)
,       m_bFadeToThisStream(FALSE)
,	m_bFadeAlreadyDone(FALSE)
,	m_bRealAudioStream(FALSE)
,	m_ulLastInputStartTime(0)
,	m_ulLastInputEndTime(0)
,	m_llLastStartTimePlayed(0)
,	m_ulTSRollOver(0)
,	m_bLastWriteTimeUpdated(FALSE)
,	m_pCommonClassFactory(NULL)
,	m_pAvailableBuffers(NULL)
,	m_uCacheSize(CACHE_INCREMENT_SIZE)
,	m_bCacheMayBeGrown(FALSE)
,	m_bDeterminedInitialCacheSize(FALSE)
,	m_bLastNMilliSecsToBeSaved(FALSE)
,	m_ulLastNMilliSeconds(MINIMUM_INITIAL_PUSHDOWN)
,	m_pLastNMilliSecsList(NULL)
,	m_ulLastNHeadTime(0)
,	m_ulLastNTailTime(0)
, 	m_eState(E_STOPPED)
,	m_bCanBeRewound(FALSE)
,	m_bAudioDeviceReflushHint(FALSE)
,	m_bIsResumed(FALSE)
,	m_bPlayerPause(FALSE)
,       m_pPreferences(NULL)
,	m_bMayNeedToRollbackTimestamp(FALSE)
,	m_piPendingAudioData(NULL)
{
    m_Owner	    = owner;
    if (m_Owner)
    {
	m_Owner->AddRef();
    }

    if (pContext)
    {
	HX_VERIFY(HXR_OK == pContext->QueryInterface(IID_IHXCommonClassFactory, 
					    (void**) &m_pCommonClassFactory));
    }

#ifdef HELIX_FEATURE_VOLUME
    m_pStreamVolume = NULL;
#endif
    
#if defined(HELIX_FEATURE_PREFERENCES)
    if (pContext)
    {
	HX_VERIFY(HXR_OK == pContext->QueryInterface(IID_IHXPreferences, (void**) &m_pPreferences));
    }
#endif /* HELIX_FEATURE_PREFERENCES */

    m_DryNotificationMap = new CHXMapPtrToPtr;
    m_pInDataPtr    = new HXAudioData;
    m_pOutDataPtr   = new HXAudioData;
    m_pMixEngine    = new HXAudioSvcMixEngine() ;
};

/************************************************************************
 *  Method:
 *		IHXAudioStream::~CHXAudioStream()
 *	Purpose:
 *		Destructor. Clean up and set free.
 */
CHXAudioStream::~CHXAudioStream()
{
    HX_DELETE(m_DryNotificationMap);
    ResetStream();
    HX_RELEASE(m_piPendingAudioData);
}
 
/////////////////////////////////////////////////////////////////////////
//  Method:
//      IUnknown::QueryInterface
//  Purpose:
//      Implement this to export the interfaces supported by your
//      object.
//
STDMETHODIMP CHXAudioStream::QueryInterface(REFIID riid, void** ppvObj)
{
    QInterfaceList qiList[] =
        {
            { GET_IIDHANDLE(IID_IHXAudioStream), (IHXAudioStream*)this },
            { GET_IIDHANDLE(IID_IHXRealAudioSync), (IHXRealAudioSync*)this },
            { GET_IIDHANDLE(IID_IHXAudioStream2), (IHXAudioStream2*)this },
            { GET_IIDHANDLE(IID_IHXCommonClassFactory), (IHXCommonClassFactory*)this },
            { GET_IIDHANDLE(IID_IHXUpdateProperties), (IHXUpdateProperties*)this },
            { GET_IIDHANDLE(IID_IUnknown), (IUnknown*)(IHXAudioStream*)this },
#ifdef HELIX_FEATURE_VOLUME            
            { GET_IIDHANDLE(IID_IHXVolumeAdviseSink), (IHXVolumeAdviseSink*)this },
#endif            
        };
    
    return ::QIFind(qiList, QILISTSIZE(qiList), riid, ppvObj);
}

/////////////////////////////////////////////////////////////////////////
//  Method:
//      IUnknown::AddRef
//  Purpose:
//      Everyone usually implements this the same... feel free to use
//      this implementation.
//
STDMETHODIMP_(ULONG32) CHXAudioStream::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}

/////////////////////////////////////////////////////////////////////////
//  Method:
//      IUnknown::Release
//  Purpose:
//      Everyone usually implements this the same... feel free to use
//      this implementation.
//
STDMETHODIMP_(ULONG32) CHXAudioStream::Release()
{
    if (InterlockedDecrement(&m_lRefCount) > 0)
    {
        return m_lRefCount;
    }

    delete this;
    return 0;
}

/*
 *  IHXAudioStream methods
 */

/************************************************************************
 *  Method:
 *		IHXAudioStream::Init
 *	Purpose:
 *		Init the audio stream.
 */
STDMETHODIMP CHXAudioStream::Init
(
    const HXAudioFormat*	pAudioFormat,
          IHXValues*		pValues
)
{
    if (m_bAudioFormatKnown)
    {
	return HXR_OK;
    }

    HX_RESULT theErr = HXR_OK;
    m_pValues = pValues;
    if (m_pValues)
    {
	m_pValues->AddRef();
	UINT32 ulVal = 0;
	m_pValues->GetPropertyULONG32("audioDeviceReflushHint", ulVal);
	if (ulVal == 1)
	{
	    SetAudioDeviceReflushHint(TRUE);
	    m_Owner->m_Owner->CheckIfLastNMilliSecsToBeStored();
	}
    }

    memcpy( &m_AudioFmt, pAudioFormat, sizeof(HXAudioFormat) );

    // Create the audio data list 
    m_pDataList = new CHXSimpleList;
    if ( !m_pDataList )
        theErr = HXR_OUTOFMEMORY;
    if(!theErr) // check if list constructor really succeeded
    {
        if(!m_pDataList->IsPtrListValid())
            theErr = HXR_OUTOFMEMORY;
    }

    m_pInstantaneousList = new CHXSimpleList;
    if ( !m_pInstantaneousList || !m_pInstantaneousList->IsPtrListValid())
        theErr = HXR_OUTOFMEMORY;

    // Reset this so that we init the hooks
    m_bFirstWrite	= TRUE;
    m_bHooksInitialized	= FALSE;

#ifdef HELIX_FEATURE_VOLUME    
    if( !theErr )
    {
        m_pStreamVolume = (IHXVolume*)new CHXVolume;
        if( m_pStreamVolume )
        {
            m_pStreamVolume->AddRef();
            m_pStreamVolume->AddAdviseSink(this);
        }
        else
            theErr = HXR_OUTOFMEMORY;
    }
#endif    

    m_bAudioFormatKnown = TRUE;

    if (m_bSetupToBeDone)
    {
	m_bSetupToBeDone    = FALSE;
	m_Owner->AudioFormatNowKnown();
    }

    if (!theErr && m_bSetupDone && !m_bInited)
    {
	theErr = ProcessInfo();
    }

    return theErr;
}

/************************************************************************
 *  Method:
 *		IHXAudioStream::Write
 *  Purpose:
 *      Write audio data to Audio Services. 
 *
 *      NOTE: If the renderer loses packets and there is no loss
 *      correction, then the renderer should write the next packet 
 *      using a meaningful start time.  Audio Services will play 
 *      silence where packets are missing.
 */
STDMETHODIMP CHXAudioStream::Write
( 
    HXAudioData*	pInData
)
{
    HX_RESULT theErr = HXR_OK;

    if (!pInData)
    {
	return HXR_INVALID_PARAMETER;
    }

    if (!m_bInited)
    {
	return HXR_NOT_INITIALIZED;
    }

    // Init pre-mix hooks. Call this once to set up hook info. 
    if ( !m_bHooksInitialized )
    {
	InitHooks();
    }

#if defined(HELIX_FEATURE_AUDIO_INCOMPLETESAMPLE)
    /* make sure that we are always handing complete sample frames
     * down the chain by buffering up samples if we don't get complete frames.
     *
     * This is done by using a slush IHXBuffer that is just large enough
     * to hold one sample frame, and a second IHXBuffer to hold sample fragments.
     * This one does not own a buffer, but uses the incoming buffers.
     *
     * This way, we don't need any large memcpy()s. Unfortunately, we have to
     * create a new slush buffer every time because we don't know how long
     * this buffer will be stuck in the queue until it gets rendered.
     *
     * I guess we could try to be smart and only create a new one if the old one
     * is still AddRef()ed but I figure it's not worth it.
     */

    /* if there was a discontinuity in the audio stream, throw away pending bytes.
     * This also assumes that we're starting at a sample frame boundary, which might
     * be wrong -- but we really have no way to tell.
     */

    if (pInData->uAudioStreamType != STREAMING_AUDIO)
    {
	m_ulPendingAudioBytes = 0 ;
	HX_RELEASE(m_piPendingAudioData) ;
    }

    /* if pData is NULL, hand it through unchanged. See comment in Write2() */
    if (!pInData->pData)
	return Write2(pInData) ;

    UINT32 ulInBytes = pInData->pData->GetSize() ; // number of bytes in incoming sample
    UINT32 ulCutoffBytes = 0 ; // number of bytes that will be cut off incoming sample

    /* first check if we have pending samples. */
    if (m_ulPendingAudioBytes)
    {
	// complete sample frames would have been sent the last time around
	HX_ASSERT(m_ulPendingAudioBytes < m_ulSampleFrameSize) ;
	HX_ASSERT(m_piPendingAudioData) ;

	/* append more bytes from the start of the incoming packet. */
	ulCutoffBytes = m_ulSampleFrameSize - m_ulPendingAudioBytes ;
	if (ulCutoffBytes > ulInBytes)
	    ulCutoffBytes = ulInBytes ;

	memcpy(m_piPendingAudioData->GetBuffer() + m_ulPendingAudioBytes,
	       pInData->pData->GetBuffer(),
	       ulCutoffBytes ) ;

	m_ulPendingAudioBytes += ulCutoffBytes ;
	ulInBytes             -= ulCutoffBytes ;
    }

    // if we have a complete sample frame in the slush buffer, send it.
    if (m_ulPendingAudioBytes == m_ulSampleFrameSize)
    {
	HX_ASSERT(m_piPendingAudioData) ;