prepro.c

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/*

$Log$
Revision 1.15 2004/06/26 03:50:14 markster
Merge source cleanups (bug #1911)

Revision 1.14 2003/02/12 13:59:15 matteo
mer feb 12 14:56:57 CET 2003

Revision 1.1.1.1 2003/02/12 13:59:15 matteo
mer feb 12 14:56:57 CET 2003

Revision 1.2 2000/01/05 08:20:39 markster
Some OSS fixes and a few lpc changes to make it actually work

 * Revision 1.2 1996/08/20 20:40:51 jaf
 * Removed all static local variables that were SAVE'd in the Fortran
 * code, and put them in struct lpc10_encoder_state that is passed as an
 * argument.
 *
 * Removed init function, since all initialization is now done in
 * init_lpc10_encoder_state().
 *
 * Revision 1.1 1996/08/19 22:30:54 jaf
 * Initial revision
 *
 */

/* -- translated by f2c (version 19951025).
 You must link the resulting object file with the libraries:
 -lf2c -lm (in that order)
*/

#include "f2c.h"

#ifdef P_R_O_T_O_T_Y_P_E_S
extern int prepro_(real *speech, integer *length,
 struct lpc10_encoder_state *st);
/*:ref: hp100_ 14 3 6 4 4 */
/*:ref: inithp100_ 14 0 */
#endif

/* Table of constant values */

static integer c__1 = 1;

/* ********************************************************************* */

/* PREPRO Version 48 */

/* $Log$
 * Revision 1.15 2004/06/26 03:50:14 markster
 * Merge source cleanups (bug #1911)
 *
 * Revision 1.14 2003/02/12 13:59:15 matteo
 * mer feb 12 14:56:57 CET 2003
 *
 * Revision 1.1.1.1 2003/02/12 13:59:15 matteo
 * mer feb 12 14:56:57 CET 2003
 *
 * Revision 1.2 2000/01/05 08:20:39 markster
 * Some OSS fixes and a few lpc changes to make it actually work
 *
 * Revision 1.2 1996/08/20 20:40:51 jaf
 * Removed all static local variables that were SAVE'd in the Fortran
 * code, and put them in struct lpc10_encoder_state that is passed as an
 * argument.
 *
 * Removed init function, since all initialization is now done in
 * init_lpc10_encoder_state().
 *
 * Revision 1.1 1996/08/19 22:30:54 jaf
 * Initial revision
 * */
/* Revision 1.3 1996/03/14 23:22:56 jaf */
/* Added comments about when INITPREPRO should be used. */

/* Revision 1.2 1996/03/14 23:09:27 jaf */
/* Added an entry named INITPREPRO that initializes the local state of */
/* this subroutine, and those it calls (if any). */

/* Revision 1.1 1996/02/07 14:48:54 jaf */
/* Initial revision */


/* ********************************************************************* */

/* Pre-process input speech: */

/* Inputs: */
/* LENGTH - Number of SPEECH samples */
/* Input/Output: */
/* SPEECH(LENGTH) - Speech data. */
/* Indices 1 through LENGTH are read and modified. */

/* This subroutine has no local state maintained from one call to the */
/* next, but HP100 does. If you want to switch to using a new audio */
/* stream for this filter, or reinitialize its state for any other */
/* reason, call the ENTRY INITPREPRO. */

/* Subroutine */ int prepro_(real *speech, integer *length,
 struct lpc10_encoder_state *st)
{
 extern /* Subroutine */ int hp100_(real *, integer *, integer *, struct lpc10_encoder_state *);

/* Arguments */
/* High Pass Filter at 100 Hz */
 /* Parameter adjustments */
 if (speech) {
 --speech;
 }

 /* Function Body */
 hp100_(&speech[1], &c__1, length, st);
 return 0;
} /* prepro_ */