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-rw-r--r--1.4.23-rc4/codecs/lpc10/decode.c625
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diff --git a/1.4.23-rc4/codecs/lpc10/decode.c b/1.4.23-rc4/codecs/lpc10/decode.c
deleted file mode 100644
index 08b8b9192..000000000
--- a/1.4.23-rc4/codecs/lpc10/decode.c
+++ /dev/null
@@ -1,625 +0,0 @@
-/*
-
-$Log$
-Revision 1.16 2004/06/26 03:50:14 markster
-Merge source cleanups (bug #1911)
-
-Revision 1.15 2003/09/19 01:20:22 markster
-Code cleanups (bug #66)
-
-Revision 1.2 2003/09/19 01:20:22 markster
-Code cleanups (bug #66)
-
-Revision 1.1.1.1 2003/02/12 13:59:14 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 20:22:39 jaf
- * Removed all static local variables that were SAVE'd in the Fortran
- * code, and put them in struct lpc10_decoder_state that is passed as an
- * argument.
- *
- * Removed init function, since all initialization is now done in
- * init_lpc10_decoder_state().
- *
- * Revision 1.1 1996/08/19 22:32:38 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 decode_(integer *ipitv, integer *irms, integer *irc, integer *voice, integer *pitch, real *rms, real *rc, struct lpc10_decoder_state *st);
-/* comlen contrl_ 12 */
-/*:ref: ham84_ 14 3 4 4 4 */
-/*:ref: median_ 4 3 4 4 4 */
-#endif
-
-/* Common Block Declarations */
-
-extern struct {
- integer order, lframe;
- logical corrp;
-} contrl_;
-
-#define contrl_1 contrl_
-
-/* Table of constant values */
-
-static integer c__2 = 2;
-
-/* ***************************************************************** */
-
-/* DECODE Version 54 */
-
-/* $Log$
- * Revision 1.16 2004/06/26 03:50:14 markster
- * Merge source cleanups (bug #1911)
- *
- * Revision 1.15 2003/09/19 01:20:22 markster
- * Code cleanups (bug #66)
- *
- * Revision 1.2 2003/09/19 01:20:22 markster
- * Code cleanups (bug #66)
- *
- * Revision 1.1.1.1 2003/02/12 13:59:14 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 20:22:39 jaf
- * Removed all static local variables that were SAVE'd in the Fortran
- * code, and put them in struct lpc10_decoder_state that is passed as an
- * argument.
- *
- * Removed init function, since all initialization is now done in
- * init_lpc10_decoder_state().
- *
- * Revision 1.1 1996/08/19 22:32:38 jaf
- * Initial revision
- * */
-/* Revision 1.5 1996/05/23 20:06:03 jaf */
-/* Assigned PITCH a "default" value on the first call, since otherwise it */
-/* would be left uninitialized. */
-
-/* Revision 1.4 1996/03/26 19:35:18 jaf */
-/* Commented out trace statements. */
-
-/* Revision 1.3 1996/03/21 21:10:50 jaf */
-/* Added entry INITDECODE to reinitialize the local state of subroutine */
-/* DECODE. */
-
-/* Revision 1.2 1996/03/21 21:04:50 jaf */
-/* Determined which local variables should be saved from one invocation */
-/* to the next, and guessed initial values for some that should have been */
-/* saved, but weren't given initial values. Many of the arrays are */
-/* "constants", and many local variables are only used if the "global" */
-/* variable CORRP is .TRUE. */
-
-/* Added comments explaining which indices of array arguments are read or */
-/* written. */
-
-/* Revision 1.1 1996/02/12 03:21:10 jaf */
-/* Initial revision */
-
-
-/* ***************************************************************** */
-
-/* This subroutine provides error correction and decoding */
-/* for all LPC parameters */
-
-/* Input: */
-/* IPITV - Index value of pitch */
-/* IRMS - Coded Energy */
-/* CORRP - Error correction: */
-/* If FALSE, parameters are decoded directly with no delay. If TRUE, */
-/* most important parameter bits are protected by Hamming code and */
-/* median smoothed. This requires an additional frame of delay. */
-/* Input/Output: */
-/* IRC - Coded Reflection Coefficients */
-/* Indices 1 through ORDER always read, then written. */
-/* Output: */
-/* VOICE - Half frame voicing decisions */
-/* Indices 1 through 2 written. */
-/* PITCH - Decoded pitch */
-/* RMS - Energy */
-/* RC - Reflection coefficients */
-/* Indices 1 through ORDER written. */
-
-/* NOTE: Zero RC's should be done more directly, but this would affect */
-/* coded parameter printout. */
-
-/* This subroutine maintains local state from one call to the next. 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 */
-/* INITDECODE. */
-
-/* Subroutine */ int decode_(integer *ipitv, integer *irms,
- integer *irc, integer *voice, integer *pitch, real *rms, real *rc,
- struct lpc10_decoder_state *st)
-{
- /* Initialized data */
-
- logical *first;
- static integer ethrs = 2048;
- static integer ethrs1 = 128;
- static integer ethrs2 = 1024;
- static integer ethrs3 = 2048;
- static integer ivtab[32] = { 24960,24960,24960,24960,25480,25480,25483,
- 25480,16640,1560,1560,1560,16640,1816,1563,1560,24960,24960,24859,
- 24856,26001,25881,25915,25913,1560,1560,7800,3640,1561,1561,3643,
- 3641 };
- static real corth[32] /* was [4][8] */ = { 32767.f,10.f,5.f,0.f,
- 32767.f,8.f,4.f,0.f,32.f,6.4f,3.2f,0.f,32.f,6.4f,3.2f,0.f,32.f,
- 11.2f,6.4f,0.f,32.f,11.2f,6.4f,0.f,16.f,5.6f,3.2f,0.f,16.f,5.6f,
- 3.2f,0.f };
- static integer detau[128] = { 0,0,0,3,0,3,3,31,0,3,3,21,3,3,29,30,0,3,3,
- 20,3,25,27,26,3,23,58,22,3,24,28,3,0,3,3,3,3,39,33,32,3,37,35,36,
- 3,38,34,3,3,42,46,44,50,40,48,3,54,3,56,3,52,3,3,1,0,3,3,108,3,78,
- 100,104,3,84,92,88,156,80,96,3,3,74,70,72,66,76,68,3,62,3,60,3,64,
- 3,3,1,3,116,132,112,148,152,3,3,140,3,136,3,144,3,3,1,124,120,128,
- 3,3,3,3,1,3,3,3,1,3,1,1,1 };
- static integer rmst[64] = { 1024,936,856,784,718,656,600,550,502,460,420,
- 384,352,328,294,270,246,226,206,188,172,158,144,132,120,110,102,
- 92,84,78,70,64,60,54,50,46,42,38,34,32,30,26,24,22,20,18,17,16,15,
- 14,13,12,11,10,9,8,7,6,5,4,3,2,1,0 };
- static integer detab7[32] = { 4,11,18,25,32,39,46,53,60,66,72,77,82,87,92,
- 96,101,104,108,111,114,115,117,119,121,122,123,124,125,126,127,
- 127 };
- static real descl[8] = { .6953f,.625f,.5781f,.5469f,.5312f,.5391f,.4688f,
- .3828f };
- integer *ivp2h;
- static integer deadd[8] = { 1152,-2816,-1536,-3584,-1280,-2432,768,-1920 }
- ;
- static integer qb[8] = { 511,511,1023,1023,1023,1023,2047,4095 };
- static integer nbit[10] = { 8,8,5,5,4,4,4,4,3,2 };
- static integer zrc[10] = { 0,0,0,0,0,3,0,2,0,0 };
- static integer bit[5] = { 2,4,8,16,32 };
- integer *iovoic;
- integer *iavgp;
- integer *iptold;
- integer *erate;
- integer *drc;
- integer *dpit;
- integer *drms;
-
- /* System generated locals */
- integer i__1, i__2;
-
- /* Builtin functions */
- integer pow_ii(integer *, integer *);
-
- /* Local variables */
- extern /* Subroutine */ int ham84_(integer *, integer *, integer *);
- integer ipit, iout, i__, icorf, index, ivoic, ixcor, i1, i2, i4;
- extern integer median_(integer *, integer *, integer *);
- integer ishift, errcnt, lsb;
-
-/* $Log$
- * Revision 1.16 2004/06/26 03:50:14 markster
- * Merge source cleanups (bug #1911)
- *
- * Revision 1.15 2003/09/19 01:20:22 markster
- * Code cleanups (bug #66)
- *
- * Revision 1.2 2003/09/19 01:20:22 markster
- * Code cleanups (bug #66)
- *
- * Revision 1.1.1.1 2003/02/12 13:59:14 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 20:22:39 jaf
- * Removed all static local variables that were SAVE'd in the Fortran
- * code, and put them in struct lpc10_decoder_state that is passed as an
- * argument.
- *
- * Removed init function, since all initialization is now done in
- * init_lpc10_decoder_state().
- *
- * Revision 1.1 1996/08/19 22:32:38 jaf
- * Initial revision
- * */
-/* Revision 1.3 1996/03/29 22:03:47 jaf */
-/* Removed definitions for any constants that were no longer used. */
-
-/* Revision 1.2 1996/03/26 19:34:33 jaf */
-/* Added comments indicating which constants are not needed in an */
-/* application that uses the LPC-10 coder. */
-
-/* Revision 1.1 1996/02/07 14:43:51 jaf */
-/* Initial revision */
-
-/* LPC Configuration parameters: */
-/* Frame size, Prediction order, Pitch period */
-/* Arguments */
-/* $Log$
- * Revision 1.16 2004/06/26 03:50:14 markster
- * Merge source cleanups (bug #1911)
- *
- * Revision 1.15 2003/09/19 01:20:22 markster
- * Code cleanups (bug #66)
- *
- * Revision 1.2 2003/09/19 01:20:22 markster
- * Code cleanups (bug #66)
- *
- * Revision 1.1.1.1 2003/02/12 13:59:14 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 20:22:39 jaf
- * Removed all static local variables that were SAVE'd in the Fortran
- * code, and put them in struct lpc10_decoder_state that is passed as an
- * argument.
- *
- * Removed init function, since all initialization is now done in
- * init_lpc10_decoder_state().
- *
- * Revision 1.1 1996/08/19 22:32:38 jaf
- * Initial revision
- * */
-/* Revision 1.3 1996/03/29 22:05:55 jaf */
-/* Commented out the common block variables that are not needed by the */
-/* embedded version. */
-
-/* Revision 1.2 1996/03/26 19:34:50 jaf */
-/* Added comments indicating which constants are not needed in an */
-/* application that uses the LPC-10 coder. */
-
-/* Revision 1.1 1996/02/07 14:44:09 jaf */
-/* Initial revision */
-
-/* LPC Processing control variables: */
-
-/* *** Read-only: initialized in setup */
-
-/* Files for Speech, Parameter, and Bitstream Input & Output, */
-/* and message and debug outputs. */
-
-/* Here are the only files which use these variables: */
-
-/* lpcsim.f setup.f trans.f error.f vqsetup.f */
-
-/* Many files which use fdebug are not listed, since it is only used in */
-/* those other files conditionally, to print trace statements. */
-/* integer fsi, fso, fpi, fpo, fbi, fbo, pbin, fmsg, fdebug */
-/* LPC order, Frame size, Quantization rate, Bits per frame, */
-/* Error correction */
-/* Subroutine SETUP is the only place where order is assigned a value, */
-/* and that value is 10. It could increase efficiency 1% or so to */
-/* declare order as a constant (i.e., a Fortran PARAMETER) instead of as
-*/
-/* a variable in a COMMON block, since it is used in many places in the */
-/* core of the coding and decoding routines. Actually, I take that back.
-*/
-/* At least when compiling with f2c, the upper bound of DO loops is */
-/* stored in a local variable before the DO loop begins, and then that is
-*/
-/* compared against on each iteration. */
-/* Similarly for lframe, which is given a value of MAXFRM in SETUP. */
-/* Similarly for quant, which is given a value of 2400 in SETUP. quant */
-/* is used in only a few places, and never in the core coding and */
-/* decoding routines, so it could be eliminated entirely. */
-/* nbits is similar to quant, and is given a value of 54 in SETUP. */
-/* corrp is given a value of .TRUE. in SETUP, and is only used in the */
-/* subroutines ENCODE and DECODE. It doesn't affect the speed of the */
-/* coder significantly whether it is .TRUE. or .FALSE., or whether it is
-*/
-/* a constant or a variable, since it is only examined once per frame. */
-/* Leaving it as a variable that is set to .TRUE. seems like a good */
-/* idea, since it does enable some error-correction capability for */
-/* unvoiced frames, with no change in the coding rate, and no noticeable
-*/
-/* quality difference in the decoded speech. */
-/* integer quant, nbits */
-/* *** Read/write: variables for debugging, not needed for LPC algorithm
-*/
-
-/* Current frame, Unstable frames, Output clip count, Max onset buffer,
-*/
-/* Debug listing detail level, Line count on listing page */
-
-/* nframe is not needed for an embedded LPC10 at all. */
-/* nunsfm is initialized to 0 in SETUP, and incremented in subroutine */
-/* ERROR, which is only called from RCCHK. When LPC10 is embedded into */
-/* an application, I would recommend removing the call to ERROR in RCCHK,
-*/
-/* and remove ERROR and nunsfm completely. */
-/* iclip is initialized to 0 in SETUP, and incremented in entry SWRITE in
-*/
-/* sread.f. When LPC10 is embedded into an application, one might want */
-/* to cause it to be incremented in a routine that takes the output of */
-/* SYNTHS and sends it to an audio device. It could be optionally */
-/* displayed, for those that might want to know what it is. */
-/* maxosp is never initialized to 0 in SETUP, although it probably should
-*/
-/* be, and it is updated in subroutine ANALYS. I doubt that its value */
-/* would be of much interest to an application in which LPC10 is */
-/* embedded. */
-/* listl and lincnt are not needed for an embedded LPC10 at all. */
-/* integer nframe, nunsfm, iclip, maxosp, listl, lincnt */
-/* common /contrl/ fsi, fso, fpi, fpo, fbi, fbo, pbin, fmsg, fdebug */
-/* common /contrl/ quant, nbits */
-/* common /contrl/ nframe, nunsfm, iclip, maxosp, listl, lincnt */
-/* Function return value definitions */
-
-/* Parameters/constants */
-
-/* The variables below that are not Fortran PARAMETER's are */
-/* initialized with DATA statements, and then never modified. */
-/* The following are used regardless of CORRP's value. */
-
-/* DETAU, NBIT, QB, DEADD, DETAB7, RMST, DESCL */
-
-/* The following are used only if CORRP is .TRUE. */
-
-/* ETHRS, ETHRS1, ETHRS2, ETHRS3, IVTAB, BIT, CORTH, ZRC */
-
-/* Local variables that need not be saved */
-
-/* The following are used regardless of CORRP's value */
-/* The following are used only if CORRP is .TRUE. */
-
-/* Local state */
-
-/* The following are used regardless of CORRP's value */
-/* The following are used only if CORRP is .TRUE. */
-/* I am guessing the initial values for IVP2H, IOVOIC, DRC, DPIT, */
-/* and DRMS. They should be checked to see if they are reasonable.
-*/
-/* I'm also guessing for ERATE, but I think 0 is the right initial
-*/
-/* value. */
- /* Parameter adjustments */
- if (irc) {
- --irc;
- }
- if (voice) {
- --voice;
- }
- if (rc) {
- --rc;
- }
-
- /* Function Body */
-
- iptold = &(st->iptold);
- first = &(st->first);
- ivp2h = &(st->ivp2h);
- iovoic = &(st->iovoic);
- iavgp = &(st->iavgp);
- erate = &(st->erate);
- drc = &(st->drc[0]);
- dpit = &(st->dpit[0]);
- drms = &(st->drms[0]);
-
-/* DATA statements for "constants" defined above. */
-/* IF (LISTL.GE.3) WRITE(FDEBUG,800) IPITV,IRMS,(IRC(J),J=1,ORDER) */
-/* 800 FORMAT(1X,' <<ERRCOR IN>>',T32,6X,I6,I5,T50,10I8) */
-/* If no error correction, do pitch and voicing then jump to decode */
- i4 = detau[*ipitv];
- if (! contrl_1.corrp) {
- voice[1] = 1;
- voice[2] = 1;
- if (*ipitv <= 1) {
- voice[1] = 0;
- }
- if (*ipitv == 0 || *ipitv == 2) {
- voice[2] = 0;
- }
- *pitch = i4;
- if (*pitch <= 4) {
- *pitch = *iptold;
- }
- if (voice[1] == 1 && voice[2] == 1) {
- *iptold = *pitch;
- }
- if (voice[1] != voice[2]) {
- *pitch = *iptold;
- }
- goto L900;
- }
-/* Do error correction pitch and voicing */
- if (i4 > 4) {
- dpit[0] = i4;
- ivoic = 2;
- *iavgp = (*iavgp * 15 + i4 + 8) / 16;
- } else {
- ivoic = i4;
- dpit[0] = *iavgp;
- }
- drms[0] = *irms;
- i__1 = contrl_1.order;
- for (i__ = 1; i__ <= i__1; ++i__) {
- drc[i__ * 3 - 3] = irc[i__];
- }
-/* Determine index to IVTAB from V/UV decision */
-/* If error rate is high then use alternate table */
- index = (*ivp2h << 4) + (*iovoic << 2) + ivoic + 1;
- i1 = ivtab[index - 1];
- ipit = i1 & 3;
- icorf = i1 / 8;
- if (*erate < ethrs) {
- icorf /= 64;
- }
-/* Determine error rate: 4=high 1=low */
- ixcor = 4;
- if (*erate < ethrs3) {
- ixcor = 3;
- }
- if (*erate < ethrs2) {
- ixcor = 2;
- }
- if (*erate < ethrs1) {
- ixcor = 1;
- }
-/* Voice/unvoice decision determined from bits 0 and 1 of IVTAB */
- voice[1] = icorf / 2 & 1;
- voice[2] = icorf & 1;
-/* Skip decoding on first frame because present data not yet available */
- if (*first) {
- *first = FALSE_;
-/* Assign PITCH a "default" value on the first call, since */
-/* otherwise it would be left uninitialized. The two lines
-*/
-/* below were copied from above, since it seemed like a */
-/* reasonable thing to do for the first call. */
- *pitch = i4;
- if (*pitch <= 4) {
- *pitch = *iptold;
- }
- goto L500;
- }
-/* If bit 4 of ICORF is set then correct RMS and RC(1) - RC(4). */
-/* Determine error rate and correct errors using a Hamming 8,4 code */
-/* during transition or unvoiced frame. If IOUT is negative, */
-/* more than 1 error occurred, use previous frame's parameters. */
- if ((icorf & bit[3]) != 0) {
- errcnt = 0;
- lsb = drms[1] & 1;
- index = (drc[22] << 4) + drms[1] / 2;
- ham84_(&index, &iout, &errcnt);
- drms[1] = drms[2];
- if (iout >= 0) {
- drms[1] = (iout << 1) + lsb;
- }
- for (i__ = 1; i__ <= 4; ++i__) {
- if (i__ == 1) {
- i1 = ((drc[25] & 7) << 1) + (drc[28] & 1);
- } else {
- i1 = drc[(9 - i__) * 3 - 2] & 15;
- }
- i2 = drc[(5 - i__) * 3 - 2] & 31;
- lsb = i2 & 1;
- index = (i1 << 4) + i2 / 2;
- ham84_(&index, &iout, &errcnt);
- if (iout >= 0) {
- iout = (iout << 1) + lsb;
- if ((iout & 16) == 16) {
- iout += -32;
- }
- } else {
- iout = drc[(5 - i__) * 3 - 1];
- }
- drc[(5 - i__) * 3 - 2] = iout;
- }
-/* Determine error rate */
- *erate = (integer)(*erate * .96875f + errcnt * 102);
- }
-/* Get unsmoothed RMS, RC's, and PITCH */
- *irms = drms[1];
- i__1 = contrl_1.order;
- for (i__ = 1; i__ <= i__1; ++i__) {
- irc[i__] = drc[i__ * 3 - 2];
- }
- if (ipit == 1) {
- dpit[1] = dpit[2];
- }
- if (ipit == 3) {
- dpit[1] = dpit[0];
- }
- *pitch = dpit[1];
-/* If bit 2 of ICORF is set then smooth RMS and RC's, */
- if ((icorf & bit[1]) != 0) {
- if ((i__1 = drms[1] - drms[0], (real) abs(i__1)) >= corth[ixcor + 3]
- && (i__2 = drms[1] - drms[2], (real) abs(i__2)) >= corth[
- ixcor + 3]) {
- *irms = median_(&drms[2], &drms[1], drms);
- }
- for (i__ = 1; i__ <= 6; ++i__) {
- if ((i__1 = drc[i__ * 3 - 2] - drc[i__ * 3 - 3], (real) abs(i__1))
- >= corth[ixcor + ((i__ + 2) << 2) - 5] && (i__2 = drc[i__ *
- 3 - 2] - drc[i__ * 3 - 1], (real) abs(i__2)) >= corth[
- ixcor + ((i__ + 2) << 2) - 5]) {
- irc[i__] = median_(&drc[i__ * 3 - 1], &drc[i__ * 3 - 2], &drc[
- i__ * 3 - 3]);
- }
- }
- }
-/* If bit 3 of ICORF is set then smooth pitch */
- if ((icorf & bit[2]) != 0) {
- if ((i__1 = dpit[1] - dpit[0], (real) abs(i__1)) >= corth[ixcor - 1]
- && (i__2 = dpit[1] - dpit[2], (real) abs(i__2)) >= corth[
- ixcor - 1]) {
- *pitch = median_(&dpit[2], &dpit[1], dpit);
- }
- }
-/* If bit 5 of ICORF is set then RC(5) - RC(10) are loaded with */
-/* values so that after quantization bias is removed in decode */
-/* the values will be zero. */
-L500:
- if ((icorf & bit[4]) != 0) {
- i__1 = contrl_1.order;
- for (i__ = 5; i__ <= i__1; ++i__) {
- irc[i__] = zrc[i__ - 1];
- }
- }
-/* House keeping - one frame delay */
- *iovoic = ivoic;
- *ivp2h = voice[2];
- dpit[2] = dpit[1];
- dpit[1] = dpit[0];
- drms[2] = drms[1];
- drms[1] = drms[0];
- i__1 = contrl_1.order;
- for (i__ = 1; i__ <= i__1; ++i__) {
- drc[i__ * 3 - 1] = drc[i__ * 3 - 2];
- drc[i__ * 3 - 2] = drc[i__ * 3 - 3];
- }
-L900:
-/* IF (LISTL.GE.3)WRITE(FDEBUG,801)VOICE,PITCH,IRMS,(IRC(J),J=1,ORDER) */
-/* 801 FORMAT(1X,'<<ERRCOR OUT>>',T32,2I3,I6,I5,T50,10I8) */
-/* Decode RMS */
- *irms = rmst[(31 - *irms) * 2];
-/* Decode RC(1) and RC(2) from log-area-ratios */
-/* Protect from illegal coded value (-16) caused by bit errors */
- for (i__ = 1; i__ <= 2; ++i__) {
- i2 = irc[i__];
- i1 = 0;
- if (i2 < 0) {
- i1 = 1;
- i2 = -i2;
- if (i2 > 15) {
- i2 = 0;
- }
- }
- i2 = detab7[i2 * 2];
- if (i1 == 1) {
- i2 = -i2;
- }
- ishift = 15 - nbit[i__ - 1];
- irc[i__] = i2 * pow_ii(&c__2, &ishift);
- }
-/* Decode RC(3)-RC(10) to sign plus 14 bits */
- i__1 = contrl_1.order;
- for (i__ = 3; i__ <= i__1; ++i__) {
- i2 = irc[i__];
- ishift = 15 - nbit[i__ - 1];
- i2 *= pow_ii(&c__2, &ishift);
- i2 += qb[i__ - 3];
- irc[i__] = (integer)(i2 * descl[i__ - 3] + deadd[i__ - 3]);
- }
-/* IF (LISTL.GE.3) WRITE(FDEBUG,811) IRMS, (IRC(I),I=1,ORDER) */
-/* 811 FORMAT(1X,'<<DECODE OUT>>',T45,I4,1X,10I8) */
-/* Scale RMS and RC's to reals */
- *rms = (real) (*irms);
- i__1 = contrl_1.order;
- for (i__ = 1; i__ <= i__1; ++i__) {
- rc[i__] = irc[i__] / 16384.f;
- }
- return 0;
-} /* decode_ */