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monitord / lame-3.97 / ACM / .svn / text-base / DecodeStream.h.svn-base
@root root on 23 Jan 2012 2 KB Migration from SVN revision 455
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  1. /**
  2.  *
  3.  * Lame ACM wrapper, encode/decode MP3 based RIFF/AVI files in MS Windows
  4.  *
  5.  *  Copyright (c) 2002 Steve Lhomme <steve.lhomme at free.fr>
  6.  *
  7.  * This library is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * This library is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with this library; if not, write to the Free Software
  19.  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20.  *
  21.  */
  22.  
  23. /*!
  24. 	\author Steve Lhomme
  25. 	\version \$Id: DecodeStream.h,v 1.1 2002/01/23 20:39:46 robux4 Exp $
  26. */
  27.  
  28. #if !defined(_DECODESTREAM_H__INCLUDED_)
  29. #define _DECODESTREAM_H__INCLUDED_
  30.  
  31. #if _MSC_VER >= 1000
  32. #pragma once
  33. #endif // _MSC_VER >= 1000
  34.  
  35. #include <mmreg.h>
  36. #include <msacm.h>
  37. #include <msacmdrv.h>
  38.  
  39. #include "ADbg/ADbg.h"
  40.  
  41. #include <config.h>
  42. #include "util.h"
  43. #include "interface.h"
  44.  
  45. class DecodeStream
  46. {
  47. public:
  48. 	DecodeStream( );
  49. 	virtual ~DecodeStream( );
  50.  
  51. 	static DecodeStream * Create();
  52. 	static const bool Erase(const DecodeStream * a_ACMStream);
  53.  
  54. 	bool init(const int nSamplesPerSec, const int nChannels, const int nAvgBytesPerSec, const int nSourceBitrate);
  55. 	bool open();
  56. 	bool close(LPBYTE pOutputBuffer, DWORD *pOutputSize);
  57.  
  58. 	DWORD GetOutputSizeForInput(const DWORD the_SrcLength) const;
  59. 	bool  ConvertBuffer(LPACMDRVSTREAMHEADER a_StreamHeader);
  60.  
  61. 	static unsigned int GetOutputSampleRate(int samples_per_sec, int bitrate, int channels);
  62.  
  63. protected:
  64. 	lame_global_flags * gfp;
  65.  
  66. 	ADbg * my_debug;
  67. 	int my_SamplesPerSec;
  68. 	int my_Channels;
  69. 	int my_AvgBytesPerSec;
  70. 	DWORD  my_SamplesPerBlock;
  71. 	int my_SourceBitrate;
  72.  
  73. 	MPSTR my_DecodeData;
  74.  
  75. 	unsigned int m_WorkingBufferUseSize;
  76. 	char m_WorkingBuffer[2304*2]; // should be at least twice my_SamplesPerBlock
  77.  
  78. 	inline int GetBytesPerBlock(DWORD bytes_per_sec, DWORD samples_per_sec, int BlockAlign) const;
  79.  
  80. };
  81.  
  82. #endif // !defined(_DECODESTREAM_H__INCLUDED_)
  83.