oggds/OggPageQueue.h

   1 /*******************************************************************************
   2 *                                                                              *
   3 * This file is part of the Ogg Vorbis DirectShow filter collection             *
   4 *                                                                              *
   5 * Copyright (c) 2001, Tobias Waldvogel                                         *
   6 * All rights reserved.                                                         *
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   8 * Redistribution and use in source and binary forms, with or without           *
   9 * modification, are permitted provided that the following conditions are met:  *
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  12 *    this list of conditions and the following disclaimer.                     *
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  14 *  - Redistributions in binary form must reproduce the above copyright notice, *
  15 *    this list of conditions and the following disclaimer in the documentation *
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  18 *  - The names of the contributors may not be used to endorse or promote       *
  19 *    products derived from this software without specific prior written        *
  20 *    permission.                                                               *
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  22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"  *
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  34 *******************************************************************************/
  35
  36 #ifndef __OGGPAGEQUEUE__
  37 #define __OGGPAGEQUEUE__
  38
  39 #include <streams.h>
  40 #include <ogg/ogg.h>
  41
  42 typedef struct tPageNode
  43 {
  44         tPageNode*              pNext;
  45         REFERENCE_TIME  rtPos;
  46         ogg_page                og;
  47         int                             header_size;
  48         int                             body_size;
  49 } tPageNode;
  50
  51 class COggPageQueue
  52 {
  53 private:
  54         CCritSec                        m_csPageList;
  55         tPageNode*                      m_pPageListFirst;
  56         tPageNode*                      m_pPageListTail;
  57         tPageNode*                      m_pFreePageList;
  58         int                                     m_iPagesInQueue;
  59
  60         int                                     m_iHeaderAlloc;
  61         int                                     m_iBodyAlloc;
  62
  63         void                            OggPageQueueClearFreeList();
  64
  65 public:
  66                                                 COggPageQueue();
  67                                                 ~COggPageQueue();
  68         void                            OggPageQueueFlush();
  69         void                            OggPageEnqueue(ogg_page* pog, REFERENCE_TIME* rtTime);
  70         void                            OggPageRelease(tPageNode* pNode);
  71         tPageNode*                      OggPageDequeue();
  72         int                                     OggPageQueuePages();
  73         bool                            OggPageQueueCurrTime(REFERENCE_TIME* rtTime);
  74         bool                            OggPageQueuePageReady();
  75 };
  76
  77 #endif