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118 lines
4 KiB
C
118 lines
4 KiB
C
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/***************************************************************************\
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*
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* MPEG Layer3-Audio Decoder
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* <EFBFBD> 1997-2006 by Fraunhofer IIS
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* All Rights Reserved
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*
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* filename: mp3streaminfo.h
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* project : MPEG Layer-3 Decoder
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* author : Martin Sieler
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* date : 1998-05-27
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* contents/description: current bitstream parameters
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*
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\***************************************************************************/
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/*
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* $Date: 2010/11/17 20:46:04 $
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* $Id: mp3streaminfo.h,v 1.1 2010/11/17 20:46:04 audiodsp Exp $
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*/
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#ifndef __MP3STREAMINFO_H__
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#define __MP3STREAMINFO_H__
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/* ------------------------ structure alignment ---------------------------*/
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#ifdef WIN32
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#pragma pack(push, 8)
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#endif
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/*-------------------------------------------------------------------------*/
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typedef struct
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{
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int m_Layer; /* ISO/MPEG Layer */
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int m_MpegVersion; /* ISO/MPEG Version */
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int m_Bitrate; /* Bitrate (Bit/s) */
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int m_BitrateIndex; /* ISO/MPEG Bitrate index of frame */
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int m_Channels; /* Number of Channels (as indicated) */
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int m_SFreq; /* Sampling Frequency (as indicated) */
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int m_EffectiveChannels; /* Number of effective output channels */
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int m_EffectiveSFreq; /* Effective Sampling Frequency */
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int m_BitsPerFrame; /* Number of bits in frame */
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float m_Duration; /* Duration of frame in milli seconds */
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int m_CrcError; /* Indication of CRC Errors */
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int m_NoMainData; /* Indication of missing main data */
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int m_SamplesPerFrame;
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} MP3STREAMINFO;
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/*-------------------------------------------------------------------------*/
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#ifdef __cplusplus
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//
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// Mp3 Streaminfo object.
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//
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// Object holding information on the last successfully decode frame.
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//
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class CMp3StreamInfo : protected MP3STREAMINFO
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{
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public:
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CMp3StreamInfo() { Reset(); }
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int GetLayer() const { return m_Layer; }
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int GetMpegVersion() const { return m_MpegVersion; }
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int GetBitrate() const { return m_Bitrate; }
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int GetBitrateIndex() const { return m_BitrateIndex; }
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int GetChannels() const { return m_Channels; }
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int GetSFreq() const { return m_SFreq; }
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int GetBitsPerFrame() const { return m_BitsPerFrame; }
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float GetDuration() const { return m_Duration; }
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int GetCrcError() const { return m_CrcError; }
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int GetNoMainData() const { return m_NoMainData; }
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int GetSamplesPerFrame() const { return m_SamplesPerFrame; }
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protected:
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friend class CMpgaDecoder;
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void SetLayer(int nValue) { m_Layer = nValue; }
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void SetMpegVersion(int nValue) { m_MpegVersion = nValue; }
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void SetBitrate(int nValue) { m_Bitrate = nValue; }
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void SetBitrateIndex(int nValue) { m_BitrateIndex = nValue; }
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void SetChannels(int nValue) { m_Channels = nValue; }
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void SetSFreq(int nValue) { m_SFreq = nValue; }
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void SetBitsPerFrame(int nValue) { m_BitsPerFrame = nValue; }
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void SetDuration(float fValue) { m_Duration = fValue; }
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void SetCrcError(int nValue) { m_CrcError = nValue; }
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void SetNoMainData(int nValue) { m_NoMainData = nValue; }
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void SetSamplesPerFrame(int nValue) { m_SamplesPerFrame = nValue; }
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void Reset()
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{
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m_Layer = 0;
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m_MpegVersion = 0;
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m_Bitrate = 0;
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m_BitrateIndex = 0;
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m_Channels = 0;
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m_SFreq = 0;
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m_BitsPerFrame = 0;
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m_Duration = 0.0f;
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m_CrcError = 0;
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m_NoMainData = 0;
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m_SamplesPerFrame=0;
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}
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};
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#endif /* __cplusplus */
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/*-------------------------------------------------------------------------*/
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#ifdef WIN32
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#pragma pack(pop)
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#endif
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/*-------------------------------------------------------------------------*/
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#endif
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