mp4gpyld.cpp

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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 ***** */

/****************************************************************************
 *  Defines
 */
#define _OVERALLOC_CODEC_DATA	3

#define FLUSH_ALL_PACKETS   0xFFFFFFFF

#define CHAR_LF	0x0a
#define CHAR_CR	0x0d

#define FORMAT_PARAMETERS_PREFIX	"a=fmtp:0 "
#define FORMAT_PARAMETERS_PREFIX_SIZE	(sizeof(FORMAT_PARAMETERS_PREFIX) - 1)

#define MAX_AUPACKETS_IN_RTPPACKET	50

#define MAX_PACKET_FRAGMENTS	256
#define MAX_AU_FRAGMENTS	256
#define MAX_AU_PACKETS		256

#define MAX_INT_TEXT_LENGTH	10


/****************************************************************************
 *  Includes
 */
#include "hxtypes.h"
#include "hxwintyp.h"
#include "hxcom.h"
#include "hxcomm.h"

#include "hxassert.h"
#include "hxslist.h"
#include "hxstrutl.h"
#include "hxcomm.h"
#include "ihxpckts.h"
#include "hxformt.h"
#include "hxrendr.h"
#include "hxformt.h"
#include "hxengin.h"

#include "bitstuff.h"

#include "sdpchunk.h"
#include "sdptools.h"
#include "mp4gpyld.h"


MP4GPayloadFormat::MP4GPayloadFormat()
    : m_lRefCount	    (0)
    , m_pClassFactory	    (NULL)
    , m_pStreamHeader	    (NULL)
    , m_bFlushed	    (FALSE)
    , m_bUsesRTPPackets	    (FALSE)
    , m_bRTPPacketTested    (FALSE)
    , m_bPacketize	    (FALSE)
    , m_ulSamplesPerSecond  (1000)
    , m_ulRTPSamplesPerSecond(0)
    , m_bPriorLoss	    (FALSE)
    , m_pPacketFragments    (NULL)
    , m_pAUFragments	    (NULL)
    , m_pAUPackets	    (NULL)
    , m_ulMaxPacketFragments(MAX_PACKET_FRAGMENTS)
    , m_ulMaxAUFragments    (MAX_AU_FRAGMENTS)
    , m_ulMaxAUPackets	    (MAX_AU_PACKETS)
    , m_ulNumPacketFragments(0)
    , m_ulNumAUFragments    (0)
    , m_ulNumAUPackets	    (0)
    , m_bStartPacket	    (TRUE)
    , m_ulAUDuration	    (0)
    , m_ulFrameCount	    (0)
    , m_bLastReapedSet	    (FALSE)
    , m_bEarliestDeintTimeKnown(FALSE)
{
    ;
}

MP4GPayloadFormat::~MP4GPayloadFormat()
{
    Reset();

    HX_VECTOR_DELETE(m_pPacketFragments);
    HX_VECTOR_DELETE(m_pAUFragments);
    HX_VECTOR_DELETE(m_pAUPackets);

    HX_RELEASE(m_pClassFactory);
    HX_RELEASE(m_pStreamHeader);
}

HX_RESULT MP4GPayloadFormat::Build(REF(IMP4APayloadFormat*) pFmt)
{
    pFmt = new MP4GPayloadFormat();

    HX_RESULT res = HXR_OUTOFMEMORY;
    if (pFmt)
    {
	pFmt->AddRef();
	res = HXR_OK;
    }

    return res;
}

// *** IUnknown methods ***

/////////////////////////////////////////////////////////////////////////
//  Method:
//	IUnknown::QueryInterface
//  Purpose:
//	Implement this to export the interfaces supported by your
//	object.
//
STDMETHODIMP
MP4GPayloadFormat::QueryInterface(REFIID riid, void** ppvObj)
{
    QInterfaceList qiList[] =
    {
	{ GET_IIDHANDLE(IID_IUnknown), this },
	{ GET_IIDHANDLE(IID_IHXPayloadFormatObject), (IHXPayloadFormatObject*) this },
    };
    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)
MP4GPayloadFormat::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}

/////////////////////////////////////////////////////////////////////////
//  Method:
//	IUnknown::Release
//  Purpose:
//	Everyone usually implements this the same... feel free to use
//	this implementation.
//
STDMETHODIMP_(ULONG32)
MP4GPayloadFormat::Release()
{
    if (InterlockedDecrement(&m_lRefCount) > 0)
    {
        return m_lRefCount;
    }

    delete this;
    return 0;
}


STDMETHODIMP
MP4GPayloadFormat::Init(IUnknown* pContext,
			BOOL bPacketize)
{
    HX_RESULT retVal = HXR_OK;

    HX_RELEASE(m_pClassFactory);

    m_bPacketize = bPacketize;

    if (SUCCEEDED(retVal))
    {
	retVal = pContext->QueryInterface(IID_IHXCommonClassFactory,
					  (void**) &m_pClassFactory);
    }

    if (SUCCEEDED(retVal))
    {
	retVal = HXR_OUTOFMEMORY;

	m_pPacketFragments = new IHXPacket* [m_ulMaxPacketFragments];
	m_pAUFragments = new CAUPacket* [m_ulMaxAUFragments];
	m_pAUPackets = new CAUPacket* [m_ulMaxAUPackets];

	if (m_pPacketFragments &&
	    m_pAUFragments &&
	    m_pAUPackets)
	{
	    memset(m_pPacketFragments, 0, sizeof(IHXPacket*) * m_ulMaxPacketFragments);
	    memset(m_pAUFragments, 0, sizeof(CAUPacket*) * m_ulMaxAUFragments);
	    memset(m_pAUPackets, 0, sizeof(CAUPacket*) * m_ulMaxAUPackets);
	    retVal = HXR_OK;
	}
    }

    return retVal;
}

STDMETHODIMP
MP4GPayloadFormat::Reset()
{
    // Release all input packets we have stored
    FlushQueues();
    FlushArrays();

    m_bFlushed = FALSE;
    m_bPriorLoss = FALSE;
    m_bStartPacket = TRUE;
    m_ulFrameCount = 0;

    m_TSConverter.Reset();

    return HXR_OK;
}

STDMETHODIMP
MP4GPayloadFormat::SetStreamHeader(IHXValues* pHeader)
{
    HX_RESULT retVal;

    if (pHeader)
    {
	m_pStreamHeader = pHeader;
	m_pStreamHeader->AddRef();
    }

    if (m_bPacketize)
    {
	retVal = SetPacketizerHeader(pHeader);
    }
    else
    {
	retVal = SetAssemblerHeader(pHeader);
    }

    return retVal;
}

HX_RESULT MP4GPayloadFormat::SetPacketizerHeader(IHXValues* pHeader)
{
    return HXR_OK;
}

HX_RESULT MP4GPayloadFormat::SetAssemblerHeader(IHXValues* pHeader)
{
    IHXBuffer* pMimeType = NULL;
    const char* pMimeTypeData = NULL;
    HX_RESULT retVal = HXR_INVALID_PARAMETER;

    if (pHeader)
    {
	retVal = HXR_OK;
    }

    if (SUCCEEDED(retVal))
    {
	retVal = pHeader->GetPropertyCString("MimeType", pMimeType);
    }

    if (SUCCEEDED(retVal))
    {
	pMimeTypeData = (char*) pMimeType->GetBuffer();

	retVal = HXR_FAIL;
	if (pMimeTypeData)
	{
	    retVal = HXR_OK;
	}
    }

    // Determine payload type here based on mime type
    if (SUCCEEDED(retVal))
    {
	retVal = HXR_FAIL;
	if ((strcasecmp(pMimeTypeData, "audio/mpeg4-simple-A2") == 0) ||
	    (strcasecmp(pMimeTypeData, "audio/x-ralf-mpeg4-generic") == 0) ||
	    (strcasecmp(pMimeTypeData, "audio/mpeg4-generic") == 0) ||
	    (strcasecmp(pMimeTypeData, "video/mpeg4-generic") == 0))
	{
	    retVal = HXR_OK;
	}
    }

    if (SUCCEEDED(retVal))
    {
	char *pData = NULL;
	char* pAllocData = NULL;
	IHXBuffer* pSDPData = NULL;
	IHXValues* pValues = NULL;
	ULONG32 ulTryIdx = 0;

	do
	{
	    if (ulTryIdx == 0)
	    {
		retVal = pHeader->GetPropertyCString("SDPData", pSDPData);

		if (SUCCEEDED(retVal))
		{
		    pData = (char*) pSDPData->GetBuffer();

		    retVal = HXR_FAIL;
		    if (pData)
		    {
			retVal = HXR_OK;
		    }
		}
	    }
	    else
	    {
		retVal = pHeader->GetPropertyCString("PayloadParameters", pSDPData);

		if (SUCCEEDED(retVal))
		{
		    ULONG32 ulDataLen;

		    pData = (char*) pSDPData->GetBuffer();
		    ulDataLen = strlen(pData);

		    pAllocData = new char [ulDataLen +
			FORMAT_PARAMETERS_PREFIX_SIZE +
			2];

		    retVal = HXR_OUTOFMEMORY;
		    if (pAllocData)
		    {
			strcpy(pAllocData, FORMAT_PARAMETERS_PREFIX); /* Flawfinder: ignore */
			strcpy(pAllocData + FORMAT_PARAMETERS_PREFIX_SIZE, pData); /* Flawfinder: ignore */
			pAllocData[FORMAT_PARAMETERS_PREFIX_SIZE + ulDataLen] =
			    CHAR_LF;
			pAllocData[FORMAT_PARAMETERS_PREFIX_SIZE + 1 + ulDataLen] =
			    '\0';

			pData = pAllocData;
			retVal = HXR_OK;
		    }
		}
	    }

	    if (SUCCEEDED(retVal))
	    {
		retVal = SDPParseChunk(pData,
		    strlen(pData),
		    pValues,
		    m_pClassFactory,
		    SDPCTX_Renderer);
	    }

	    HX_VECTOR_DELETE(pAllocData);

	    if (SUCCEEDED(retVal))
	    {
		retVal = SetAssemblerConfig(pValues);
	    }

	    if (SUCCEEDED(retVal))
	    {
		m_ulAUDuration = m_Config.m_ulConstantDuration;
	    }

	    HX_RELEASE(pSDPData);
	    HX_RELEASE(pValues);

	    ulTryIdx++;
	} while (FAILED(retVal) && (ulTryIdx < 2));
    }

    if (SUCCEEDED(retVal))
    {
	m_pStreamHeader->GetPropertyULONG32("SamplesPerSecond",
					    m_ulRTPSamplesPerSecond);
    }

    HX_RELEASE(pMimeType);

    return retVal;
}

HX_RESULT MP4GPayloadFormat::SetAssemblerConfig(IHXValues* pFMTParams)
{
    return m_Config.Init(pFMTParams, m_pClassFactory);
}

HX_RESULT MP4GPayloadFormat::CFormatConfig::Init(IHXValues* pFMTParams,
						 IHXCommonClassFactory* pClassFactory)
{
    IHXBuffer* pConfigString = NULL;
    IHXBuffer* pModeString = NULL;
    HX_RESULT retVal = HXR_OK;

    HX_ASSERT(pFMTParams);

    // Obtain Required parameters
    retVal = pFMTParams->GetPropertyULONG32("FMTPstreamtype",
					    m_ulStreamType);

    if (SUCCEEDED(retVal))
    {
	retVal = pFMTParams->GetPropertyULONG32("FMTPprofile-level-id",
						m_ulProfileLevelID);
    }

    if (SUCCEEDED(retVal))
    {
	retVal = pFMTParams->GetPropertyCString("FMTPconfig",
						pConfigString);

	if (FAILED(retVal))
	{
	    ULONG32 ulConfigVal = 0;

	    retVal = pFMTParams->GetPropertyULONG32("FMTPconfig",
						    ulConfigVal);

	    if (SUCCEEDED(retVal))
	    {
		retVal = pClassFactory->CreateInstance(IID_IHXBuffer,
						       (void**) &pConfigString);
	    }

	    if (SUCCEEDED(retVal))
	    {
		retVal = pConfigString->SetSize(MAX_INT_TEXT_LENGTH + 1);
	    }

	    if (SUCCEEDED(retVal))
	    {
		SafeSprintf((char*) pConfigString->GetBuffer(), MAX_INT_TEXT_LENGTH + 1, "%ld",
			ulConfigVal);
	    }
	}
    }

    // Obtain optional parameters
    if (SUCCEEDED(retVal))
    {
	pFMTParams->GetPropertyCString("FMTPmode", pModeString);
	pFMTParams->GetPropertyULONG32("FMTPConstantSize", m_ulConstantSize);
	pFMTParams->GetPropertyULONG32("FMTPConstantDuration", m_ulConstantDuration);
	pFMTParams->GetPropertyULONG32("FMTPSizeLength", m_ulSizeLength);
	pFMTParams->GetPropertyULONG32("FMTPIndexLength", m_ulIndexLength);
	pFMTParams->GetPropertyULONG32("FMTPIndexDeltaLength", m_ulIndexDeltaLength);
	pFMTParams->GetPropertyULONG32("FMTPCTSDeltaLength", m_ulCTSDeltaLength);
	pFMTParams->GetPropertyULONG32("FMTPDTSDeltaLength", m_ulDTSDeltaLength);
	pFMTParams->GetPropertyULONG32("FMTPAuxDataSizeLength", m_ulAuxDataSizeLength);
	pFMTParams->GetPropertyULONG32("FMTPProfile", m_ulProfile);
    }

    // Perform any needed translations
    if (SUCCEEDED(retVal))
    {
	// Determine Mode from Mode String
	if (pModeString)
	{
	    const char* pMode = (char*) pModeString->GetBuffer();

	    if (pMode)
	    {
		if (strcasecmp(pMode, "A0") == 0)
		{
		    m_Mode = MODE_A0;
		}
		else if (strcasecmp(pMode, "A1") == 0)
		{
		    m_Mode = MODE_A1;
		}
		else if (strcasecmp(pMode, "A2") == 0)
		{
		    m_Mode = MODE_A2;
		}
	    }
	}

	// Convert decoder configuration from ascii hex to binary
	if (pConfigString)
	{
	    ULONG32 ulConfigSize;
	    const char* pConfig = (char*) pConfigString->GetBuffer();
	    IHXBuffer* pConfigBuffer = NULL;

	    if (pConfig)
	    {
		ulConfigSize = strlen(pConfig) / 2;

		if (ulConfigSize > 0)
		{
		    retVal = pClassFactory->CreateInstance(IID_IHXBuffer,
							   (void**) &pConfigBuffer);

		    if (SUCCEEDED(retVal))
		    {
			retVal = pConfigBuffer->SetSize(ulConfigSize);
		    }

		    if (SUCCEEDED(retVal))
		    {
			retVal = HexStringToBinary(pConfigBuffer->GetBuffer(),
						   pConfig);
		    }
		}
	    }

	    if (SUCCEEDED(retVal))
	    {
		m_pConfig = pConfigBuffer;

		if (m_pConfig)
		{
		    m_pConfig->AddRef();
		}
	    }

	    HX_RELEASE(pConfigBuffer);
	}
    }

    // Compute dervied parameter
    if (SUCCEEDED(retVal))
    {
	m_bHasAUHeaders = ((m_ulSizeLength != 0) ||
			   (m_ulIndexLength != 0) ||
			   (m_ulIndexDeltaLength != 0) ||
			   (m_ulCTSDeltaLength != 0) ||
			   (m_ulDTSDeltaLength != 0));
    }

    HX_RELEASE(pModeString);
    HX_RELEASE(pConfigString);

    return retVal;
}

STDMETHODIMP
MP4GPayloadFormat::GetStreamHeader(REF(IHXValues*) pHeader)