codec.h
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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 ***** */
- #ifndef _CCODEC_H_
- #define _CCODEC_H_
- /****************************************************************************
- * Includes
- */
- #if defined( _WIN32 ) || defined( _WINDOWS )
- #include <windows.h>
- #endif
- #include <stdlib.h>
- #include "racodec.h"
- // these are to set the #define for _MAX_PATH
- #ifndef _MAX_PATH
- #if defined ( _MACINTOSH ) || defined(_MAC_UNIX)
- #include "platform/mac/maclibrary.h"
- #elif defined (_UNIX)
- #include <stdlib.h>
- #ifndef _VXWORKS
- #include <sys/param.h>
- #endif
- #define _MAX_PATH MAXPATHLEN
- #endif
- #endif // _MAX_PATH
- // Use DLLAccess instead of LoadLibrary, FreeLibrary, GetProcAddress
- // 07/24/98 JBH
- class DLLAccessBridge;
- #define CODEC_ID_LENGTH 4
- #define _MAX_DLL_NAME_LENGTH 256
- // Add Cookie API
- typedef void* RACODEC;
- // New Exportable Functions
- typedef HX_RESULT (HXEXPORT_PTR RA_OPEN_CODEC) (RACODEC* codecRef); // preview compatibility - do NOT use
- typedef HX_RESULT (HXEXPORT_PTR RA_OPEN_CODEC2) (RACODEC* codecRef, const char* pCodecPath);
- typedef HX_RESULT (HXEXPORT_PTR RA_CLOSE_CODEC) (RACODEC codecRef);
- typedef HX_RESULT (HXEXPORT_PTR RA_SET_PASSWORD) (RACODEC codecRef, const char* password);
- typedef UINT16 (HXEXPORT_PTR RA_GET_NUM_FLAVORS) (RACODEC codecRef); // no error returned. zero flavors means there's a problem.
- typedef void* (HXEXPORT_PTR RA_GET_FLAVOR_PROPERTY) (RACODEC codecRef, UINT16 flavorNum, UINT16 propNum, UINT16* propSize); // use IHXValues?
- typedef HX_RESULT (HXEXPORT_PTR RA_SET_FLAVOR) (RACODEC codecRef, UINT16 flavorNum);
- typedef HX_RESULT (HXEXPORT_PTR RA_INIT_ENCODER) (RACODEC codecRef, void* params);
- typedef HX_RESULT (HXEXPORT_PTR RA_ENCODE) (RACODEC codecRef, UINT16* inBuf, Byte* outBuf);
- typedef void (HXEXPORT_PTR RA_FREE_ENCODER) (RACODEC codecRef);
- typedef HX_RESULT (HXEXPORT_PTR RA_INIT_DECODER) (RACODEC codecRef, void* params);
- typedef HX_RESULT (HXEXPORT_PTR RA_DECODE) (RACODEC codecRef, Byte* inBuf, UINT32 inLength,
- Byte* outBuf, UINT32* outLength, UINT32 userData);
- typedef HX_RESULT (HXEXPORT_PTR RA_FLUSH) (RACODEC codecRef, Byte* outBuf, UINT32* outLength);
- typedef void (HXEXPORT_PTR RA_FREE_DECODER) (RACODEC codecRef);
- typedef void (HXEXPORT_PTR RA_GET_BACKEND) (RACODEC codecRef, void*** ppFuncList);
- typedef void (HXEXPORT_PTR RA_GET_GUID) (UCHAR* pGUID);
- typedef void (HXEXPORT_PTR RA_GET_DECODE_GUID) (RACODEC codecRef, UCHAR* pGUID);
- typedef HX_RESULT (HXEXPORT_PTR RA_GO_SECURE) (RACODEC codecRef);
- class CCodec
- {
- public:
- /* class constructor and destructor */
- CCodec(char * pCodecID,
- IUnknown* pContext = NULL,
- BOOL bDummy = FALSE); // Reserved
- virtual ~CCodec ();
- // Loads codec's DLL
- virtual HX_RESULT LoadCodec();
- // Unloads codec's DLL
- virtual void FreeCodec();
- // Encode & Decode functions
- UINT16 GetNumberOfFlavors (void);
- // GetFlavorProperty returns a point to the property requested and
- // sets size of the property in pPropertySize. The pointer returned
- // is valid until the next GetFlavorProperty is called or until the
- // destructor of the "CODEC" object is called.
- void* GetFlavorProperty (UINT16 flavorIndex, UINT16 flavorProperty, UINT16* pPropertySize);
- HX_RESULT SetFlavor (UINT16 flavorIndex);
- UINT16 GetCurrentFlavor (void) { return mCurrentFlavor; };
- char* GetID (void) { return mCodecID; };
- HX_RESULT GetLastError (void) { return mLastError; };
- // Encoder Functions
- // platform dependent part of the init function
- HX_RESULT InitEncoder (RAENCODER_INIT_PARAMS* params);
- // Encodes data from input buffer to output buffer.
- HX_RESULT Encode (Byte* pInBuffer, Byte* pOutBuffer);
- // platform dependent part of the free function
- void FreeEncoder (void);
- // Decoder Functions
- // plaform dependent part of the init function
- HX_RESULT InitDecoder (RADECODER_INIT_PARAMS* params, BOOL bSwitchable);
- // Decodes inLength bytes of data from input buffer, using userData if needed.
- // Returns outLength bytes of data in output buffer.
- virtual HX_RESULT Decode (Byte* pInBuffer, UINT32 inLength, Byte* pOutBuffer, UINT32* pOutLength, UINT32 userData);
- // Flushes decoder stream and returns data (if available).
- // Called at seek, pause, or end of stream.
- HX_RESULT Flush (Byte* pOutBuffer, UINT32* pOutLength);
- // platform dependent part of the free function
- virtual void FreeDecoder (void);
- HX_RESULT InitCodec(BOOL bWithVersion = FALSE);
- protected:
- #ifdef _WINDOWS
- BOOL IsFileExist(const char * DecDllPath);
- BOOL VerifyCodec();
- #endif
- IUnknown* m_pContext;
- char* m_pszFullDllPath;
- DLLAccessBridge* mpDLLAccess;
- #ifdef _MACINTOSH
- short DllVrefNum;
- LONG32 DllParID;
- #endif
- HX_RESULT mLastError; // last error occured
- BOOL mEncoderInited; // Initialization flag
- BOOL mDecoderInited; // Initialization flag
- char mCodecID[CODEC_ID_LENGTH + 1];/* Flawfinder: ignore */ // codec ID
- char mDLLName[_MAX_DLL_NAME_LENGTH];
- Byte * curProperty;
- UINT16 mCurrentFlavor;
- RACODEC mCodecRef; // cookie
- RA_OPEN_CODEC2 fpOpenCodec; // only support NEW OpenCodec API w/ codecDir path
- RA_CLOSE_CODEC fpCloseCodec;
- RA_SET_PASSWORD fpSetPassword;
- RA_GET_NUM_FLAVORS fpGetNumFlavors;
- RA_GET_FLAVOR_PROPERTY fpGetFlavorProperty;
- RA_SET_FLAVOR fpSetFlavor;
- RA_INIT_ENCODER fpInitEncoder;
- RA_ENCODE fpEncode;
- RA_FREE_ENCODER fpFreeEncoder;
- RA_INIT_DECODER fpInitDecoder;
- RA_DECODE fpDecode;
- RA_FLUSH fpFlush;
- RA_FREE_DECODER fpFreeDecoder;
- };
-
- #endif // _CCODEC_H_