mp3queue.h
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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 ***** */
- #ifndef _MP3QUEUE_H_
- #define _MP3QUEUE_H_
- #include "hxcom.h"
- #include "ihxpckts.h"
- typedef struct
- {
- IHXPacket* pPacket; // Origonal packet
- UCHAR* pHdr; // Pointer to syncword, side info etc.
- UINT32 ulHdrSize; // Size of pHdr
- UCHAR* pData; // Pointer to mp3 data
- UINT32 ulDataSize; // Size of mp3 pData
- UINT32 ulFrameSize; // Size of mp3 frame
- UINT32 ulOffset; // main_data_begin
- UCHAR* pBuffer; // mp3 data
- UINT32 ulSize; // mp3 frame size
- UINT32 ulTime; // Time stamp of the frame
- } tFrameInfo;
- class CMp3Format;
- class CMp3Queue
- {
- public:
- CMp3Queue(CMp3Format* pFmt, int nEntries);
- ~CMp3Queue();
- int AddEntry(IHXPacket* pPacket);
- tFrameInfo* GetHead();
- tFrameInfo* GetIndex(int nIndex);
- tFrameInfo* Next();
- void RemoveHead();
- void RemoveAll();
-
- void RemoveDataBytes(UINT32 ulBytes) {m_ulDataBytes -= ulBytes;}
-
- UINT32 GetDataBytes() {return m_ulDataBytes;}
- UINT32 GetEntries() {return m_ulEntries;}
- private:
- UCHAR GenerateFrameInfo(tFrameInfo* pInfo);
- UINT32 m_ulDataBytes, // How much mp3 data is in queue
- m_ulQueueSize, // How many entries can the queue hold
- m_ulEntries, // How many entries are in the queue
- m_ulHead, // Index of the head
- m_ulAddIndex, // Index of the next added entry
- m_ulHeadDataRemnant, // main_data_begin bytes left over from head
- m_ulNext; // Index of entry for Next call
- tFrameInfo *m_pQueue; // The queue itself
- CMp3Format *m_pFmt; // Used in AddEntry
- };
- #endif