h263vidfmt.cpp

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: h263vidfmt.cpp,v 1.8.2.2 2004/07/23 06:43:53 pankajgupta 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 ***** */

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

#define MP4V_RN_3GPP_H263_PAYLOAD_MIME_TYPE "video/X-RN-3GPP-H263"

#if defined(HELIX_FEATURE_VIDEO_H263_FAVOR_CORRUPTEDFRAMES_OVER_JITTER)
#define NON_KEYFRM_DCDE_FALLBEHIND_THRSHLD  -33	// in milliseconds
#else
#define NON_KEYFRM_DCDE_FALLBEHIND_THRSHLD  -800	// in milliseconds
#endif // HELIX_FEATURE_VIDEO_H263_FAVOR_CORRUPTEDFRAMES_OVER_JITTER

#define DFLT_MAX_IMG_WIDTH	176
#define DFLT_MAX_IMG_HEIGHT	144

#define CCCC_ENCODE(b1, b2, b3, b4)	((b1 << 24) |	\
					 (b2 << 16) |	\
					 (b3 << 8)  |	\
					 b4)


/****************************************************************************
 *  Includes
 */

#include "h263vidfmt.h"

#include "hxasm.h"
#include "hxwin.h"
#include "hxvsurf.h"
// #include "hxvctrl.h"
#include "hxsite2.h"
#include "hxthread.h"

#include "hxtick.h"
#include "hxassert.h"
#include "hxstrutl.h"
#include "hxmarsh.h"
#include "unkimp.h"
#include "timeval.h"
#include "cttime.h"

// #include "qtbatom.h"

#include "h263video.h"


/****************************************************************************
 *  Locals
 */


/****************************************************************************
 *  Method:
 *    CQTVideoFormat::CQTVideoFormat
 *
 */
CH263VideoFormat::CH263VideoFormat(IHXCommonClassFactory* pCommonClassFactory,
				   CH263VideoRenderer* pH263VideoRenderer)
    : CVideoFormat(pCommonClassFactory, pH263VideoRenderer)
    , m_pH263VideoRenderer(pH263VideoRenderer)
    , m_pRssm(NULL)
    , m_pMaxDims(NULL)
    , m_pAssmDims(NULL)
    , m_pDecoder(NULL)
    , m_ulDecoderBufSize(0)
{
    HX_ASSERT(m_pCommonClassFactory);
    HX_ASSERT(pH263VideoRenderer);

    m_pH263VideoRenderer->AddRef();
}


/****************************************************************************
 *  Method:
 *    CQTVideoFormat::~CQTVideoFormat
 *
 */
CH263VideoFormat::~CH263VideoFormat()
{
    HX_RELEASE(m_pH263VideoRenderer);

    if (m_pRssm)
    {
	m_pRssm->Close();
	m_pRssm->Release();
	m_pRssm = NULL;
    }

    HX_DELETE(m_pDecoder);
    HX_DELETE(m_pMaxDims);

    _Reset();
}


/****************************************************************************
 *  Method:
 *    CQTVideoFormat::Init
 *
 */
HX_RESULT CH263VideoFormat::Init(IHXValues* pHeader)
{
    IHXBuffer* pMimeType = NULL;
    const char* pMimeTypeData = NULL;
    HX_RESULT retVal = CVideoFormat::Init(pHeader);

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

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

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

    if (SUCCEEDED(retVal))
    {
	if (strcasecmp(pMimeTypeData,
		       MP4V_RN_3GPP_H263_PAYLOAD_MIME_TYPE) == 0)
	{
	    IHXBuffer* pConfigData = NULL;

	    retVal = pHeader->GetPropertyBuffer("OpaqueData", pConfigData);

	    if (SUCCEEDED(retVal))
	    {
		retVal = ConfigFrom3GPPHeader(pConfigData);
	    }

	    HX_RELEASE(pConfigData);

	    // This payload is raw H263 frames and needs no assembly
	    HX_RELEASE(m_pRssm);
	}
	else
	{
	    // Assume H263 payload - Create Packet Assembler
	    retVal = HXR_OUTOFMEMORY;
	    m_pRssm = new CH263PayloadFormat();
	    if (m_pRssm)
	    {
		m_pRssm->AddRef();
		retVal = HXR_OK;
	    }
	}
    }

    HX_RELEASE(pMimeType);

    // Create Decoder
    if (SUCCEEDED(retVal))
    {
	retVal = HXR_OUTOFMEMORY;
    m_pDecoder = CreateDecoder();
	if (m_pDecoder)
	{
	    retVal = HXR_OK;
	}
    }

    if (SUCCEEDED(retVal) && m_pRssm)
    {
	retVal = m_pRssm->Init(m_pCommonClassFactory, FALSE);
    }

    if (SUCCEEDED(retVal) && m_pRssm)
    {
	retVal = m_pRssm->SetStreamHeader(pHeader);
    }

    m_DecoderDims.cx = 0;
    m_DecoderDims.cy = 0;

    return retVal;
}


/****************************************************************************
 *  Method:
 *    CQTVideoFormat::CreateAssembledPacket
 *
 */
CMediaPacket* CH263VideoFormat::CreateAssembledPacket(IHXPacket* pCodecData)
{
    CMediaPacket* pFramePacket = NULL;
    IHXPacket* pPacket = NULL;

    m_pH263VideoRenderer->BltIfNeeded();

    if (m_pRssm)
    {
	m_LastError = m_pRssm->SetPacket(pCodecData);
        if( m_LastError == HXR_OUTOFMEMORY )
        {
	    return NULL;
        }
	m_pRssm->GetPacket(pPacket);
    }
    else if (!pCodecData->IsLost())
    {
	// Since there is no packet assembler - assume no assembly is needed
	pPacket = pCodecData;
	pPacket->AddRef();
    }

    if (pPacket)
    {
	HXxSize FrameDims;
	HXxSize* pFrameDims = NULL;
	IHXBuffer* pBuffer = pPacket->GetBuffer();

	if (pBuffer)
	{
#ifdef _TRUST_MAX_DIMS_WHEN_AVAILABLE
	    if (!m_pMaxDims)
#endif	// _TRUST_MAX_DIMS_WHEN_AVAILABLE
	    {
		HX_RESULT status =
		    CH263PayloadFormat::GetFrameDimensions(pBuffer, FrameDims);

		if (status == HXR_NO_DATA)
		{
		    // This is a custom size H263+ and we do not parse the
		    // bitstream deep enough to get to the custom size
		    if (m_pMaxDims &&
			(m_pMaxDims->cx != 0) &&
			(m_pMaxDims->cy != 0))
		    {
			FrameDims = *m_pMaxDims;
		    }
		    else
		    {
			FrameDims.cx = DFLT_MAX_IMG_WIDTH;
			FrameDims.cy = DFLT_MAX_IMG_HEIGHT;
		    }
		}

		// Assembler can extract the frame dimensions
		if ((status == HXR_OK) || (status == HXR_NO_DATA))
		{
		    if (!m_pAssmDims)
		    {
			m_pAssmDims = new HXxSize;
			pFrameDims = new HXxSize;

			if (pFrameDims && m_pAssmDims)
			{
			    *m_pAssmDims = *pFrameDims = FrameDims;
			    if (status == HXR_OK)
			    {
				// we resize only on actual frame dimensions
				m_pH263VideoRenderer->ResizeViewFrame(FrameDims);
			    }
			}
			else
			{
			    HX_DELETE(m_pAssmDims);
			    HX_DELETE(pFrameDims);
			}
		    }
		    else
		    {
			if (*m_pAssmDims != FrameDims)
			{
			    pFrameDims = new HXxSize;

			    if (pFrameDims)
			    {
				*pFrameDims = FrameDims;
			    }
			    else
			    {
				HX_DELETE(m_pAssmDims);
			    }
			}
		    }
		}
	    }
#ifdef _TRUST_MAX_SIZE_WHEN_AVAILABLE
	    else if ((!m_pAssmDims) && m_pMaxDims)
	    {
		// If assembler is absent, we should have max. dimensions
		// from out-of and config. data
		m_pAssmDims = new HXxSize;
		pFrameDims = new HXxSize;

		if (pFrameDims && m_pAssmDims)
		{
		    *m_pAssmDims = *pFrameDims = *m_pMaxDims;
		}
		else
		{
		    HX_DELETE(m_pAssmDims);
		    HX_DELETE(pFrameDims);
		}
	    }
#endif	// _TRUST_MAX_DIMS_WHEN_AVAILABLE

	    if (m_pAssmDims)
	    {
		ULONG32 ulDataSize = pBuffer->GetSize();
		ULONG32 ulNewBufferSize = ulDataSize;
		UINT8* pData = pBuffer->GetBuffer();
		UINT8* pNewBuffer = (UINT8*) pBuffer;
		ULONG32 ulFlags = MDPCKT_USES_IHXBUFFER_FLAG;

#ifdef _OVERALLOC_CODEC_DATA
		// If Reassembler is present, it is responsible for overallocating
		// data if needed
		if (!m_pRssm)
		{
		    ulFlags = 0;
		    ulNewBufferSize += _OVERALLOC_CODEC_DATA;

		    pNewBuffer = new UINT8 [ulNewBufferSize];
		    if (pNewBuffer)
		    {
			memcpy(pNewBuffer, pData, ulDataSize); /* Flawfinder: ignore */
		    }
		    pData = pNewBuffer;
		}
#endif	// _OVERALLOC_CODEC_DATA