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AudioRingBuffer.h

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00001 /* audiodevs: Abstraction layer for audio hardware & samples 00002 Copyright (C) 2003-2004 Nemosoft Unv. 00003 00004 This program is free software; you can redistribute it and/or modify 00005 it under the terms of the GNU General Public License as published by 00006 the Free Software Foundation; either version 2 of the License, or 00007 (at your option) any later version. 00008 00009 This program is distributed in the hope that it will be useful, 00010 but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 GNU General Public License for more details. 00013 00014 You should have received a copy of the GNU General Public License 00015 along with this program; if not, write to the Free Software 00016 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00017 00018 For questions, remarks, patches, etc. for this program, the author can be 00019 reached at camstream@smcc.demon.nl. 00020 */ 00021 00022 #ifndef AUDIORINGBUFFER_HPP 00023 #define AUDIORINGUBFFER_HPP 00024 00025 #include "RingBuffer.h" 00026 #include "AudioSample.h" 00027 00028 00029 class CAudioRingBufferReader: protected CRingBufferReader 00030 { 00031 private: 00032 const SoundAttributes *m_pSoundAttributes; 00033 CRingBuffer *m_pRing; 00034 00035 public: 00036 CAudioRingBufferReader(CRingBuffer *ring, const SoundAttributes *attr); 00037 00038 SoundAttributes GetSoundAttributes() const; 00039 00040 void SetLowWaterMark(SamplePos); 00041 SamplePos GetLowWaterMark() const; 00042 void SetHighWaterMark(SamplePos); 00043 SamplePos GetHighWaterMark() const; 00044 00045 CAudioSample ReadFromTail(SamplePos length); 00046 CAudioSample ReadFromHead(SamplePos length, bool clear = false, unsigned long time = ULONG_MAX); 00047 }; 00048 00049 #endif

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