/**

 *

 * Lame ACM wrapper, encode/decode MP3 based RIFF/AVI files in MS Windows

 *

 *  Copyright (c) 2002 Steve Lhomme <steve.lhomme at free.fr>

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 */

/*!

	\author Steve Lhomme

	\version \$Id: DecodeStream.h,v 1.2 2006/12/25 21:37:34 robert Exp $

*/

#if !defined(_DECODESTREAM_H__INCLUDED_)

#define _DECODESTREAM_H__INCLUDED_

#if _MSC_VER >= 1000

#pragma once

#endif // _MSC_VER >= 1000

#include <mmreg.h>

#include <msacm.h>

#include <msacmdrv.h>

#include "ADbg/ADbg.h"

struct lame_global_flags;

class DecodeStream

{

public:

	DecodeStream( );

	virtual ~DecodeStream( );

	static DecodeStream * Create();

	static const bool Erase(const DecodeStream * a_ACMStream);

	bool init(const int nSamplesPerSec, const int nChannels, const int nAvgBytesPerSec, const int nSourceBitrate);

	bool open();

	bool close(LPBYTE pOutputBuffer, DWORD *pOutputSize);

	DWORD GetOutputSizeForInput(const DWORD the_SrcLength) const;

	bool  ConvertBuffer(LPACMDRVSTREAMHEADER a_StreamHeader);

	static unsigned int GetOutputSampleRate(int samples_per_sec, int bitrate, int channels);

protected:

	lame_global_flags * gfp;

	ADbg * my_debug;

	int my_SamplesPerSec;

	int my_Channels;

	int my_AvgBytesPerSec;

	DWORD  my_SamplesPerBlock;

	int my_SourceBitrate;

	MPSTR my_DecodeData;

	unsigned int m_WorkingBufferUseSize;

	char m_WorkingBuffer[2304*2]; // should be at least twice my_SamplesPerBlock

	inline int GetBytesPerBlock(DWORD bytes_per_sec, DWORD samples_per_sec, int BlockAlign) const;

};

#endif // !defined(_DECODESTREAM_H__INCLUDED_)