mpalowl3.h
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _MPALOWL3_H_
- #define _MPALOWL3_H_
- /*****************************************************************
- low level decoder functions Layer III
- ******************************************************************/
- #ifdef __cplusplus
- extern "C" {
- #endif
- #include "bitget.h"
- // sbtL3.c
- void sbt_mono_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- void sbt_dual_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- void sbt16_mono_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- void sbt16_dual_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- void sbt8_mono_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- void sbt8_dual_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- void sbtB_mono_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- void sbtB_dual_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- void sbtB16_mono_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- void sbtB16_dual_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- void sbtB8_mono_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- void sbtB8_dual_L3(float *sample, unsigned char *pcm, int ch, float vbuf[][512], int vb_ptr[]);
- // hwin.c
- int hybrid(void *xin, void *xprev, float *y,
- int btype, int nlong, int ntot, int nprev, int band_limit_nsb);
- int hybrid_sum(void *xin, void *xin_left, float *y,
- int btype, int nlong, int ntot);
- void sum_f_bands( void *a, void *b, int n);
- void FreqInvert(float *y, int n);
- // msis.c
- void antialias(void *x, int n);
- void ms_process(void *x, int n); /* sum-difference stereo */
- void is_process_MPEG1(void *x, /* intensity stereo */
- SCALEFACT *sf,
- CB_INFO cb_info[2], /* [ch] */
- int nsamp, int ms_mode, int nBand[2][22], int sfBandIndex[2][22]);
- void is_process_MPEG2(void *x, /* intensity stereo */
- SCALEFACT *sf,
- CB_INFO cb_info[2], /* [ch] */
- IS_SF_INFO *is_sf_info,
- int nsamp, int ms_mode, int nBand[2][22], int sfBandIndex[2][22]);
- // uph.c
- void unpack_huff(void *xy, int n, int ntable, BITDAT *bitdat);
- int unpack_huff_quad(void *vwxy, int n, int nbits, int ntable, BITDAT *bitdat);
- // L3dq.c
- void dequant(SAMPLE sample[], int *nsamp,
- SCALEFACT *sf,
- GR *gr,
- CB_INFO *cb_info, int ncbl_mixed, int nBand[2][22], float re_buf[192][3]);
- // upsf.c
- void unpack_sf_sub_MPEG1(SCALEFACT *scalefac, GR *gr,
- int scfsi, /* bit flag */
- int igr, BITDAT *bitdat);
- void unpack_sf_sub_MPEG2(SCALEFACT sf[], /* return intensity scale */
- GR *grdat,
- int is_and_ch, IS_SF_INFO *is_sf_info, BITDAT *bitdat);
- #ifdef __cplusplus
- } // end extern C
- #endif
- #endif //__MPALOWL3_H_