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Diffstat (limited to 'Src/replicant/nsmp3dec/mdct.h')
-rw-r--r-- | Src/replicant/nsmp3dec/mdct.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/Src/replicant/nsmp3dec/mdct.h b/Src/replicant/nsmp3dec/mdct.h new file mode 100644 index 00000000..0c507340 --- /dev/null +++ b/Src/replicant/nsmp3dec/mdct.h @@ -0,0 +1,61 @@ +/***************************************************************************\ + * +* MPEG Layer3-Audio Decoder +* © 1997-2006 by Fraunhofer IIS + * All Rights Reserved + * + * filename: mdct.h + * project : ISO/MPEG-Decoder + * author : Stefan Gewinner + * date : 1998-05-26 + * contents/description: mdct class - HEADER + * + * + \***************************************************************************/ + +/* + * $Date: 2011/01/18 18:22:03 $ + * $Id: mdct.h,v 1.4 2011/01/18 18:22:03 audiodsp Exp $ + */ + +#ifndef __MDCT_H__ +#define __MDCT_H__ + +/* ------------------------ includes --------------------------------------*/ + +#include "mpeg.h" +#include "foundation/align.h" +/*-------------------------------------------------------------------------*/ + +// +// MDCT class. +// +// This object performs the frequency-to-time mapping. +// + +class CMdct +{ + +public : + + CMdct(const MPEG_INFO &_info); + ~CMdct() {} + + void Init(); + void Apply(int ch, const MP3SI_GRCH &SiGrCH, SPECTRUM &rs); + +protected : + + void cos_t_h_long (float *prev,float *dest,const float *win); + void cos_t_h_short(float *prev,float *dest,const float *win); + + float hybrid_res[36]; + NALIGN(16) float cost36_rese[9]; + NALIGN(16) float cost36_reso[9]; + + const MPEG_INFO &info; + SPECTRUM prevblck; +}; + +/*-------------------------------------------------------------------------*/ +#endif |