decwrapper.cpp

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** 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 ***** */ 

/* define which is the Codec class we're calling into */
#define CodecClass CRAGecko2

/* The include file for the codec class */
#include "ra8lbr.h"

/* generic RN include files */
#include "hxtypes.h"
#include "hxresult.h"

/* This defines the interface we're exporting */
#include "racodec.h"

/*
*  PROTOTYPES
*/

#ifdef _MACINTOSH
#ifndef _MAC_MACHO
extern "C"
{
  // Default routines
  OSErr __initialize (CFragInitBlockPtr pInitBlock);
  void __terminate(void);
  
  // Our routines
  OSErr InitEntryPoint (CFragInitBlockPtr pInitBlock);
  void TermEntryPoint(void);
}
#endif
#endif

/*
*  FUNCTIONS
*/

#if !defined(_STATICALLY_LINKED)

#if (defined(WIN32) || defined (_WIN32)) 
#if !defined(_WINCE)
BOOL WINAPI DllMain (HINSTANCE hDLL, DWORD dwReason, LPVOID lpReserved)
#else
BOOL WINAPI DllMain (HANDLE hDLL, DWORD dwReason, LPVOID lpReserved)
#endif
{
  return TRUE;
}

#endif

#ifdef _MACINTOSH
#ifndef _MAC_MACHO
OSErr InitEntryPoint (CFragInitBlockPtr pInitBlock)
{
  OSErr result = noErr;
  
  result = __initialize (pInitBlock);
  
  return result;
}

void TermEntryPoint (void)
{
  __terminate();
}
#endif
#endif

#endif /* #if !defined(_STATICALLY_LINKED) */

/*
* NEW COOKIE API
*/
// preview compatibility only - obsolete
HX_RESULT HXEXPORT ENTRYPOINT(RAOpenCodec) (RACODEC* pCodecRef)
{
  if (pCodecRef)
  {
    *pCodecRef = (RACODEC) new CodecClass();
    
    if (*pCodecRef)
      return HXR_OK;
    else
      return HXR_OUTOFMEMORY;
  }
  else
    return HXR_INVALID_PARAMETER;
}

HX_RESULT HXEXPORT ENTRYPOINT(RAOpenCodec2) (RACODEC* pCodecRef, const char* pCodecPath)
{
  // Note: The codec path is now obtained from this library's global
  // DLLAccess object, which is set in the SetDLLAccessPaths() exported
  // function. The loader of this library should have already called the
  // SetDLLAccessPaths() function to set the codec path. -DPS
  
  if (pCodecRef)
  {
    *pCodecRef = (RACODEC) new CodecClass();
    
    if (*pCodecRef)
      return HXR_OK;
    else
      return HXR_OUTOFMEMORY;
  }
  else
    return HXR_INVALID_PARAMETER;
}

HX_RESULT HXEXPORT ENTRYPOINT(RACloseCodec) (RACODEC codecRef)
{
  if (codecRef)
  {
    delete (CodecClass*) codecRef;
    return HXR_OK;
  }
  else
  {
    return HXR_INVALID_PARAMETER;
  }
}

// Older SDK uses *this* function to determine the number of codec flavors.
// However, if this function returns more than 15 (the original number of
// Gecko flavors), that SDK will fail...
// For really new codecs, this should be set to 0. See comment below.
UINT16 HXEXPORT ENTRYPOINT(RAGetNumberOfFlavors) (RACODEC codecRef)
{
    UINT16 usRetVal = 0;
    
    if (codecRef)
    {
        usRetVal = ((CodecClass*)codecRef)->GetNumberOfFlavors();
    }

    return usRetVal;
}

// This is the *new* function that will return the true number of supported
// Gecko flavors.  The Build Engine will check for the existence of this
// function, and use its result.  If this function does not exist it will
// query the function above (RAGetNumberOfFlavors)
// -Gregc 
UINT16 HXEXPORT ENTRYPOINT(RAGetNumberOfFlavors2) (RACODEC codecRef)
{
    UINT16 usRetVal = 0;
    
    if (codecRef)
    {
        usRetVal = ((CodecClass*)codecRef)->GetNumberOfFlavors2();
    }

    return usRetVal;
}

void* HXEXPORT ENTRYPOINT(RAGetFlavorProperty) (RACODEC codecRef,UINT16 flvIndex, UINT16 propIndex, UINT16* pSize)
{
  return codecRef ?
    ((CodecClass*)codecRef)->GetProperty (flvIndex, propIndex, pSize) :
    NULL ;
}

HX_RESULT HXEXPORT ENTRYPOINT(RASetFlavor) (RACODEC codecRef, UINT16 flvIndex)
{
  /* XXX wschildbach:
   if new backwards-compatible content hits an old decoder that
   does not know this flavour (but is entirely happy decoding it),
   returning an error code here will break decoding on RP8 and
   before with a "general error".
   The player really should not call SetFlavour() at all, but
   until this is fixed, we must not return an error code here. */

  if (codecRef)
    ((CodecClass*)codecRef)->SetFlavor (flvIndex) ;

  return HXR_OK ;
}

HX_RESULT HXEXPORT ENTRYPOINT(RAInitDecoder) (RACODEC codecRef, void* pParam)
{
  return codecRef ?
    ((CodecClass*)codecRef)->InitDecoder ((RADECODER_INIT_PARAMS*)pParam) :
    HXR_INVALID_PARAMETER ;
}

HX_RESULT HXEXPORT ENTRYPOINT(RADecode) (RACODEC codecRef, Byte* in, UINT32 inLength, Byte* out, UINT32* pOutLength, UINT32 userData)
{
  return codecRef ? 
    ((CodecClass*)codecRef)->Decode (in, inLength, out, pOutLength, userData) :
    HXR_INVALID_PARAMETER ;
}

HX_RESULT HXEXPORT ENTRYPOINT(RAFlush) (RACODEC codecRef, Byte* outBuf, UINT32* outLength)
{
  return codecRef ?
    ((CodecClass*)codecRef)->SetFlush(outBuf,outLength) :
    HXR_INVALID_PARAMETER ;
}

void HXEXPORT ENTRYPOINT(RAFreeDecoder) (RACODEC codecRef)
{
  if (codecRef)
  {
    ((CodecClass*)codecRef)->FreeDecoder();
  }
}

HX_RESULT HXEXPORT ENTRYPOINT(RAGetBackend) (RACODEC codecRef, void*** pFuncList)
{
    return HXR_NOTIMPL;
}

HX_RESULT HXEXPORT ENTRYPOINT(RAGetGUID) (UCHAR* pGUID)
{
    return CodecClass::GetGUID(pGUID);
}

HX_RESULT HXEXPORT ENTRYPOINT(RASetComMode) (RACODEC codecRef)
{
  if (codecRef)
  {
    return ((CodecClass*)codecRef)->SetComMode();
  }
  return HXR_FAIL;
}