mp4audio.cpp
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上传日期:2007-06-06
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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 MPEG4_AUDIO_RENDERER_NAME "MPEG-4 Audio"
- #define MPEG4_AUDIO_CODEC_4CC "MP4A"
- #define LOSSLESS_RENDERER_NAME "RealAudio"
- /****************************************************************************
- * Includes
- */
- #include "hlxclib/stdio.h"
- #include "hlxclib/string.h"
- #include "hxtypes.h"
- #include "hxwintyp.h"
- #include "hxresult.h"
- #include "hxcom.h"
- #include "hxcomm.h"
- #include "ihxpckts.h"
- #include "hxcore.h"
- #include "hxrendr.h"
- #include "hxplugn.h"
- #include "hxasm.h"
- #include "hxupgrd.h"
- #include "hxengin.h"
- #include "hxprefs.h"
- #include "hxerror.h"
- #include "hxwin.h"
- #include "hxthread.h"
- #include "hxmon.h"
- #include "hxformt.h"
- #include "hxacodec.h"
- #include "mp4arend.ver"
- #include "mp4audio.h"
- #include "mp4afmt.h"
- #include "dllpath.h"
- #include "hxheap.h"
- /************************************************************************
- * CMP4AudioRenderer class
- */
- /************************************************************************
- * Constants
- */
- const char* const CMP4AudioRenderer::zm_pDescription = "RealNetworks MPEG-4 Audio Renderer Plugin";
- const char* const CMP4AudioRenderer::zm_pStreamMimeTypes[] =
- {
- #if defined(HELIX_FEATURE_AUDIO_RALF)
- "audio/x-ralf-mpeg4-generic",
- #endif /* #if defined(HELIX_FEATURE_AUDIO_RALF) */
- #if defined(HELIX_FEATURE_AUDIO_CODEC_AAC) || defined(HELIX_FEATURE_AUDIO_CODEC_RAAC)
- "audio/X-RN-MP4-RAWAU",
- "audio/MP4A-LATM",
- "audio/mpeg4-simple-A2",
- "audio/mpeg4-generic",
- "audio/X-HX-AAC-GENERIC",
- #endif /* #if defined(HELIX_FEATURE_AUDIO_CODEC_AAC) || defined(HELIX_FEATURE_AUDIO_CODEC_RAAC) */
- #if defined(HELIX_FEATURE_AUDIO_CODEC_AMRNB)
- "audio/X-RN-3GPP-AMR",
- "audio/AMR",
- #endif /* #if defined(HELIX_FEATURE_AUDIO_CODEC_AMRNB) */
- #if defined(HELIX_FEATURE_AUDIO_CODEC_AMRWB)
- "audio/X-RN-3GPP-AMR-WB",
- "audio/AMR-WB",
- #endif /* #if defined(HELIX_FEATURE_AUDIO_CODEC_AMRWB) */
- #if defined(HELIX_FEATURE_AUDIO_CODEC_MP3)
- "audio/X-MP3-draft-00",
- "audio/X-MP3-draft-00-RN",
- "audio/MPEG-ELEMENTARY",
- #endif /* #if defined(HELIX_FEATURE_AUDIO_CODEC_MP3) */
- NULL
- };
- /************************************************************************
- * Constructor/Destructor
- */
- CMP4AudioRenderer::CMP4AudioRenderer(void)
- {
- }
- CMP4AudioRenderer::~CMP4AudioRenderer()
- {
- ;
- }
- /************************************************************************
- * Method:
- * IHXPlugin::GetPluginInfo
- * Purpose:
- * Returns the basic information about this plugin. Including:
- *
- * bLoadMultiple whether or not this plugin DLL can be loaded
- * multiple times. All File Formats must set
- * this value to TRUE.
- * pDescription which is used in about UIs (can be NULL)
- * pCopyright which is used in about UIs (can be NULL)
- * pMoreInfoURL which is used in about UIs (can be NULL)
- */
- STDMETHODIMP CMP4AudioRenderer::GetPluginInfo
- (
- REF(BOOL) /*OUT*/ bLoadMultiple,
- REF(const char*) /*OUT*/ pDescription,
- REF(const char*) /*OUT*/ pCopyright,
- REF(const char*) /*OUT*/ pMoreInfoURL,
- REF(ULONG32) /*OUT*/ ulVersionNumber
- )
- {
- HX_RESULT retVal;
- retVal = CAudioRenderer::GetPluginInfo(bLoadMultiple,
- pDescription,
- pCopyright,
- pMoreInfoURL,
- ulVersionNumber);
- if (SUCCEEDED(retVal))
- {
- pDescription = (const char*) zm_pDescription;
- ulVersionNumber = TARVER_ULONG32_VERSION;
- }
-
- return retVal;
- }
- /************************************************************************
- * Method:
- * IHXRenderer::GetRendererInfo
- * Purpose:
- * If this object is a file format object this method returns
- * information vital to the instantiation of file format plugins.
- * If this object is not a file format object, it should return
- * HXR_UNEXPECTED.
- */
- STDMETHODIMP CMP4AudioRenderer::GetRendererInfo
- (
- REF(const char**) /*OUT*/ pStreamMimeTypes,
- REF(UINT32) /*OUT*/ unInitialGranularity
- )
- {
- HX_RESULT retVal;
- retVal = CAudioRenderer::GetRendererInfo(pStreamMimeTypes,
- unInitialGranularity);
- if (SUCCEEDED(retVal))
- {
- pStreamMimeTypes = (const char**) zm_pStreamMimeTypes;
- }
-
- return retVal;
- }
- /****************************************************************************
- * CreateFormatObject
- */
- CAudioFormat* CMP4AudioRenderer::CreateFormatObject(IHXValues* pHeader)
- {
- #if defined(HELIX_FEATURE_STATS) && defined(HELIX_FEATURE_AUDIO_RALF)
- if (pHeader)
- {
- IHXBuffer* pMimeTypeStr = NULL;
- pHeader->GetPropertyCString("MimeType", pMimeTypeStr);
- if (pMimeTypeStr)
- {
- const char* pszMimeType = (const char*) pMimeTypeStr->GetBuffer();
- if (pszMimeType &&
- !strcmp(pszMimeType, "audio/x-ralf-mpeg4-generic"))
- {
- // We need to update the stats
- if (m_pAudioStats)
- {
- m_pAudioStats->ReportStat(AS_REND_NAME, LOSSLESS_RENDERER_NAME);
- }
- }
- }
- HX_RELEASE(pMimeTypeStr);
- }
- #endif /* #if defined(HELIX_FEATURE_STATS) */
- return new CMP4AudioFormat(m_pCommonClassFactory, this);
- }
- /****************************************************************************
- * GetRendererName
- */
- const char* CMP4AudioRenderer::GetRendererName(void)
- {
- return MPEG4_AUDIO_RENDERER_NAME;
- }
- /****************************************************************************
- * GetCodecFourCC
- */
- const char* CMP4AudioRenderer::GetCodecFourCC(void)
- {
- return MPEG4_AUDIO_CODEC_4CC;
- }
- /****************************************************************************
- * GetCodecName
- */
- const char* CMP4AudioRenderer::GetCodecName(void)
- {
- return MPEG4_AUDIO_RENDERER_NAME;
- }
- HX_RESULT STDAPICALLTYPE CMP4AudioRenderer::HXCreateInstance(IUnknown** ppIUnknown)
- {
- HX_RESULT retVal = HXR_FAIL;
- if (ppIUnknown)
- {
- // Set default
- *ppIUnknown = NULL;
- // Create the object
- CMP4AudioRenderer *pObj = new CMP4AudioRenderer();
- if (pObj)
- {
- // QI for IUnknown
- retVal = pObj->QueryInterface(IID_IUnknown, (void**) ppIUnknown);
- }
- if (FAILED(retVal))
- {
- HX_DELETE(pObj);
- }
- }
- return retVal;
- }
- HX_RESULT STDAPICALLTYPE CMP4AudioRenderer::CanUnload2()
- {
- return (CHXBaseCountingObject::ObjectsActive() > 0 ? HXR_FAIL : HXR_OK);
- }