/*
 * Copyright (c) 1983-2023 Trevor Wishart and Composers Desktop Project Ltd
 * http://www.trevorwishart.co.uk
 * http://www.composersdesktop.com
 *
 This file is part of the CDP System.

 The CDP System is free software; you can redistribute it
 and/or modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.

 The CDP System is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public
 License along with the CDP System; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 02111-1307 USA
 *
 */



#include <stdio.h>
#include <stdlib.h>
#include <structures.h>
#include <cdpmain.h>
#include <tkglobals.h>
#include <pnames.h>
#include <focus.h>
#include <processno.h>
#include <modeno.h>
#include <globcon.h>
#include <logic.h>
#include <filetype.h>
#include <mixxcon.h>
#include <flags.h>
#include <speccon.h>
#include <arrays.h>
#include <special.h>
#include <focus.h>
#include <sfsys.h>
#include <osbind.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include <srates.h>
#include <float.h>
#include <standalone.h>

#define CHAN_SRCHRANGE_F                (4)
#define DEFAULT_FORMANT_BANDS   (4)
#define MIN_TOOBIG_RATIO                (1000.0)

#define INANAL0         0
#define INANAL1         1
#define OUTANAL         2
#define SPECENVTOP      3
#define SPECENVFRQ      4
#define SPECENVPCH      5
#define SPECENVAMP      6
#define SPECENVAMP2     7
#define ACCUOCTS        8

#define TOP_OF_LOW_OCTAVE_BANDS 4
#define CHAN_ABOVE_LOW_OCTAVES  8

#ifdef unix
#define round lround
#endif

char errstr[2400];

int anal_infiles = 1;
int     sloom = 0;
int sloombatch = 0;

const char* cdp_version = "7.1.0";

/* CDP LIBRARY FUNCTIONS TRANSFERRED HERE */

static int      set_param_data(aplptr ap, int special_data,int maxparamcnt,int paramcnt,char *paramlist);
static int  set_vflgs(aplptr ap,char *optflags,int optcnt,char *optlist,
                      char *varflags,int vflagcnt, int vparamcnt,char *varlist);
static int      setup_parameter_storage_and_constants(int storage_cnt,dataptr dz);
static int      initialise_is_int_and_no_brk_constants(int storage_cnt,dataptr dz);
static int      mark_parameter_types(dataptr dz,aplptr ap);
static int  establish_application(dataptr dz);
static int  application_init(dataptr dz);
static int  initialise_vflags(dataptr dz);
static int  setup_input_param_defaultval_stores(int tipc,aplptr ap);
static int  setup_and_init_input_param_activity(dataptr dz,int tipc);
static int  get_tk_cmdline_word(int *cmdlinecnt,char ***cmdline,char *q);
static int  assign_file_data_storage(int infilecnt,dataptr dz);

/* CDP LIB FUNCTION MODIFIED TO AVOID CALLING setup_particular_application() */

static int  parse_sloom_data(int argc,char *argv[],char ***cmdline,int *cmdlinecnt,dataptr dz);

/* SIMPLIFICATION OF LIB FUNC TO APPLY TO JUST THIS FUNCTION */

static int  parse_infile_and_check_type(char **cmdline,dataptr dz);
static int  handle_the_outfile(int *cmdlinecnt,char ***cmdline,int is_launched,dataptr dz);
static int      handle_the_extra_infile(char ***cmdline,int *cmdlinecnt,dataptr dz);
static int  open_the_outfile(dataptr dz);
static int  setup_the_application(dataptr dz);
static int  setup_the_param_ranges_and_defaults(dataptr dz);
static int  get_the_process_no(char *prog_identifier_from_cmdline,dataptr dz);
static int  get_the_mode_no(char *str, dataptr dz);
static int  setup_and_init_input_brktable_constants(dataptr dz,int brkcnt);

/* BYPASS LIBRARY GLOBAL FUNCTION TO GO DIRECTLY TO SPECIFIC APPLIC FUNCTIONS */

static int spectwin(dataptr dz);
static int allocate_spectwin_buffers(dataptr dz);
static int extract_specenv(int bufptr_no,int storeno,dataptr dz);
static int set_specenv_frqs(int arraycnt,dataptr dz);
static int setup_octaveband_steps(double **interval,dataptr dz);
static int setup_low_octave_bands(int arraycnt,dataptr dz);
static int getspecenvamp(double *thisamp,float thisfrq,int storeno,dataptr dz);
static int check_spectwin_param_validity_and_consistency(dataptr dz);

/**************************************** MAIN *********************************************/

int main(int argc,char *argv[])
{
    int exit_status;
    dataptr dz = NULL;
    char **cmdline;
    int  cmdlinecnt;
    //aplptr ap;
    int is_launched = FALSE;
    if(argc==2 && (strcmp(argv[1],"--version") == 0)) {
        fprintf(stdout,"%s\n",cdp_version);
        fflush(stdout);
        return 0;
    }
    /* CHECK FOR SOUNDLOOM */
    if((sloom = sound_loom_in_use(&argc,&argv)) > 1) {
        sloom = 0;
        sloombatch = 1;
    }
    if(sflinit("cdp")){
        sfperror("cdp: initialisation\n");
        return(FAILED);
    }
    /* SET UP THE PRINCIPLE DATASTRUCTURE */
    if((exit_status = establish_datastructure(&dz))<0) {                                    // CDP LIB
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }

    if(!sloom) {
        if(argc == 1) {
            usage1();
            return(FAILED);
        } else if(argc == 2) {
            usage2(argv[1]);
            return(FAILED);
        }
        if((exit_status = make_initial_cmdline_check(&argc,&argv))<0) {         // CDP LIB
            print_messages_and_close_sndfiles(exit_status,is_launched,dz);
            return(FAILED);
        }
        if(argc < 5) {
            sprintf(errstr,"Too few commandline parameters.\n");
            return(FAILED);
        }
        cmdline    = argv;
        cmdlinecnt = argc;
        if((get_the_process_no(argv[0],dz))<0)
            return(FAILED);
        cmdline++;
        cmdlinecnt--;
        dz->maxmode = 4;
        if((get_the_mode_no(cmdline[0],dz))<0) {
            if(!sloom)
                fprintf(stderr,"%s",errstr);
            return(FAILED);
        }
        cmdline++;
        cmdlinecnt--;
        if((exit_status = setup_the_application(dz))<0) {
            print_messages_and_close_sndfiles(exit_status,is_launched,dz);
            return(FAILED);
        }
        if((exit_status = count_and_allocate_for_infiles(cmdlinecnt,cmdline,dz))<0) {           // CDP LIB
            print_messages_and_close_sndfiles(exit_status,is_launched,dz);
            return(FAILED);
        }
    } else {
        //parse_TK_data() =
        if((exit_status = parse_sloom_data(argc,argv,&cmdline,&cmdlinecnt,dz))<0) {
            exit_status = print_messages_and_close_sndfiles(exit_status,is_launched,dz);
            return(exit_status);
        }
    }
    //ap = dz->application;

    // parse_infile_and_hone_type() =
    if((exit_status = parse_infile_and_check_type(cmdline,dz))<0) {
        exit_status = print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    // setup_param_ranges_and_defaults() =
    if((exit_status = setup_the_param_ranges_and_defaults(dz))<0) {
        exit_status = print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    // open_first_infile            CDP LIB
    if((exit_status = open_first_infile(cmdline[0],dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    cmdlinecnt--;
    cmdline++;

    //      handle_extra_infiles() =
    if((exit_status = handle_the_extra_infile(&cmdline,&cmdlinecnt,dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    // handle_outfile() =
    if((exit_status = handle_the_outfile(&cmdlinecnt,&cmdline,is_launched,dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }

    //      handle_formants()                       redundant
    //      handle_formant_quiksearch()     redundant
    //      handle_special_data()           redundant except
    if((exit_status = read_parameters_and_flags(&cmdline,&cmdlinecnt,dz))<0) {              // CDP LIB
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    if((exit_status = check_spectwin_param_validity_and_consistency(dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    dz->extra_bufcnt = 0;
    dz->bptrcnt = 9;
    if((exit_status = establish_spec_bufptrs_and_extra_buffers(dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    if((exit_status = allocate_spectwin_buffers(dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    if((exit_status = open_the_outfile(dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    is_launched = TRUE;
    //param_preprocess()                                            redundant
    if((exit_status = spectwin(dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    if((exit_status = complete_output(dz))<0) {                                                                             // CDP LIB
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    exit_status = print_messages_and_close_sndfiles(FINISHED,is_launched,dz);               // CDP LIB
    free(dz);
    return(SUCCEEDED);
}

/**********************************************
                REPLACED CDP LIB FUNCTIONS
**********************************************/

/************************ HANDLE_THE_EXTRA_INFILE *********************/

int handle_the_extra_infile(char ***cmdline,int *cmdlinecnt,dataptr dz)
{
    /* OPEN ONE EXTRA ANALFILE, CHECK COMPATIBILITY */
    int  exit_status;
    char *filename;
    fileptr fp2;
    int fileno = 1;
    double maxamp, maxloc;
    int maxrep;
    int getmax = 0, getmaxinfo = 0;
    infileptr ifp;
    fileptr fp1 = dz->infile;
    filename = (*cmdline)[0];
    if((dz->ifd[fileno] = sndopenEx(filename,0,CDP_OPEN_RDONLY)) < 0) {
        sprintf(errstr,"cannot open input file %s to read data.\n",filename);
        return(DATA_ERROR);
    }
    if((ifp = (infileptr)malloc(sizeof(struct filedata)))==NULL) {
        sprintf(errstr,"INSUFFICIENT MEMORY to store data on later infile. (1)\n");
        return(MEMORY_ERROR);
    }
    if((fp2 = (fileptr)malloc(sizeof(struct fileprops)))==NULL) {
        sprintf(errstr,"INSUFFICIENT MEMORY to store data on later infile. (2)\n");
        return(MEMORY_ERROR);
    }
    if((exit_status = readhead(ifp,dz->ifd[1],filename,&maxamp,&maxloc,&maxrep,getmax,getmaxinfo))<0)
        return(exit_status);
    copy_to_fileptr(ifp,fp2);
    if(fp2->filetype != ANALFILE) {
        sprintf(errstr,"%s is not an analysis file.\n",filename);
        return(DATA_ERROR);
    }
    if(fp2->origstype != fp1->origstype) {
        sprintf(errstr,"Incompatible original-sample-type in input file %s.\n",filename);
        return(DATA_ERROR);
    }
    if(fp2->origrate != fp1->origrate) {
        sprintf(errstr,"Incompatible original-sample-rate in input file %s.\n",filename);
        return(DATA_ERROR);
    }
    if(fp2->arate != fp1->arate) {
        sprintf(errstr,"Incompatible analysis-sample-rate in input file %s.\n",filename);
        return(DATA_ERROR);
    }
    if(fp2->Mlen != fp1->Mlen) {
        sprintf(errstr,"Incompatible analysis-window-length in input file %s.\n",filename);
        return(DATA_ERROR);
    }
    if(fp2->Dfac != fp1->Dfac) {
        sprintf(errstr,"Incompatible decimation factor in input file %s.\n",filename);
        return(DATA_ERROR);
    }
    if(fp2->channels != fp1->channels) {
        sprintf(errstr,"Incompatible channel-count in input file %s.\n",filename);
        return(DATA_ERROR);
    }
    if((dz->insams[fileno] = sndsizeEx(dz->ifd[fileno]))<0) {           /* FIND SIZE OF FILE */
        sprintf(errstr, "Can't read size of input file %s.\n"
                "open_checktype_getsize_and_compareheader()\n",filename);
        return(PROGRAM_ERROR);
    }
    if(dz->insams[fileno]==0) {
        sprintf(errstr, "File %s contains no data.\n",filename);
        return(DATA_ERROR);
    }
    (*cmdline)++;
    (*cmdlinecnt)--;
    return(FINISHED);
}

/****************************** SET_PARAM_DATA *********************************/

int set_param_data(aplptr ap, int special_data,int maxparamcnt,int paramcnt,char *paramlist)
{
    ap->special_data   = (char)special_data;
    ap->param_cnt      = (char)paramcnt;
    ap->max_param_cnt  = (char)maxparamcnt;
    if(ap->max_param_cnt>0) {
        if((ap->param_list = (char *)malloc((size_t)(ap->max_param_cnt+1)))==NULL) {
            sprintf(errstr,"INSUFFICIENT MEMORY: for param_list\n");
            return(MEMORY_ERROR);
        }
        strcpy(ap->param_list,paramlist);
    }
    return(FINISHED);
}

/****************************** SET_VFLGS *********************************/

int set_vflgs
(aplptr ap,char *optflags,int optcnt,char *optlist,char *varflags,int vflagcnt, int vparamcnt,char *varlist)
{
    ap->option_cnt   = (char) optcnt;                       /*RWD added cast */
    if(optcnt) {
        if((ap->option_list = (char *)malloc((size_t)(optcnt+1)))==NULL) {
            sprintf(errstr,"INSUFFICIENT MEMORY: for option_list\n");
            return(MEMORY_ERROR);
        }
        strcpy(ap->option_list,optlist);
        if((ap->option_flags = (char *)malloc((size_t)(optcnt+1)))==NULL) {
            sprintf(errstr,"INSUFFICIENT MEMORY: for option_flags\n");
            return(MEMORY_ERROR);
        }
        strcpy(ap->option_flags,optflags);
    }
    ap->vflag_cnt = (char) vflagcnt;
    ap->variant_param_cnt = (char) vparamcnt;
    if(vflagcnt) {
        if((ap->variant_list  = (char *)malloc((size_t)(vflagcnt+1)))==NULL) {
            sprintf(errstr,"INSUFFICIENT MEMORY: for variant_list\n");
            return(MEMORY_ERROR);
        }
        strcpy(ap->variant_list,varlist);
        if((ap->variant_flags = (char *)malloc((size_t)(vflagcnt+1)))==NULL) {
            sprintf(errstr,"INSUFFICIENT MEMORY: for variant_flags\n");
            return(MEMORY_ERROR);
        }
        strcpy(ap->variant_flags,varflags);

    }
    return(FINISHED);
}

/***************************** APPLICATION_INIT **************************/

int application_init(dataptr dz)
{
    int exit_status;
    int storage_cnt;
    int tipc, brkcnt;
    aplptr ap = dz->application;
    if(ap->vflag_cnt>0)
        initialise_vflags(dz);
    tipc  = ap->max_param_cnt + ap->option_cnt + ap->variant_param_cnt;
    ap->total_input_param_cnt = (char)tipc;
    if(tipc>0) {
        if((exit_status = setup_input_param_range_stores(tipc,ap))<0)
            return(exit_status);
        if((exit_status = setup_input_param_defaultval_stores(tipc,ap))<0)
            return(exit_status);
        if((exit_status = setup_and_init_input_param_activity(dz,tipc))<0)
            return(exit_status);
    }
    brkcnt = tipc;
    if(brkcnt>0) {
        if((exit_status = setup_and_init_input_brktable_constants(dz,brkcnt))<0)
            return(exit_status);
    }
    if((storage_cnt = tipc + ap->internal_param_cnt)>0) {
        if((exit_status = setup_parameter_storage_and_constants(storage_cnt,dz))<0)
            return(exit_status);
        if((exit_status = initialise_is_int_and_no_brk_constants(storage_cnt,dz))<0)
            return(exit_status);
    }
    if((exit_status = mark_parameter_types(dz,ap))<0)
        return(exit_status);

    // establish_infile_constants() replaced by
    dz->infilecnt = ONE_NONSND_FILE;
    //establish_bufptrs_and_extra_buffers():
    return(FINISHED);
}

/******************************** SETUP_AND_INIT_INPUT_BRKTABLE_CONSTANTS ********************************/

int setup_and_init_input_brktable_constants(dataptr dz,int brkcnt)
{
    int n;
    if((dz->brk      = (double **)malloc(brkcnt * sizeof(double *)))==NULL) {
        sprintf(errstr,"setup_and_init_input_brktable_constants(): 1\n");
        return(MEMORY_ERROR);
    }
    if((dz->brkptr   = (double **)malloc(brkcnt * sizeof(double *)))==NULL) {
        sprintf(errstr,"setup_and_init_input_brktable_constants(): 6\n");
        return(MEMORY_ERROR);
    }
    if((dz->brksize  = (int    *)malloc(brkcnt * sizeof(int)))==NULL) {
        sprintf(errstr,"setup_and_init_input_brktable_constants(): 2\n");
        return(MEMORY_ERROR);
    }
    if((dz->firstval = (double  *)malloc(brkcnt * sizeof(double)))==NULL) {
        sprintf(errstr,"setup_and_init_input_brktable_constants(): 3\n");
        return(MEMORY_ERROR);
    }
    if((dz->lastind  = (double  *)malloc(brkcnt * sizeof(double)))==NULL) {
        sprintf(errstr,"setup_and_init_input_brktable_constants(): 4\n");
        return(MEMORY_ERROR);
    }
    if((dz->lastval  = (double  *)malloc(brkcnt * sizeof(double)))==NULL) {
        sprintf(errstr,"setup_and_init_input_brktable_constants(): 5\n");
        return(MEMORY_ERROR);
    }
    if((dz->brkinit  = (int     *)malloc(brkcnt * sizeof(int)))==NULL) {
        sprintf(errstr,"setup_and_init_input_brktable_constants(): 7\n");
        return(MEMORY_ERROR);
    }
    for(n=0;n<brkcnt;n++) {
        dz->brk[n]     = NULL;
        dz->brkptr[n]  = NULL;
        dz->brkinit[n] = 0;
        dz->brksize[n] = 0;
    }
    return(FINISHED);
}

/********************** SETUP_PARAMETER_STORAGE_AND_CONSTANTS ********************/
/* RWD mallo changed to calloc; helps debug verison run as release! */

int setup_parameter_storage_and_constants(int storage_cnt,dataptr dz)
{
    if((dz->param       = (double *)calloc(storage_cnt, sizeof(double)))==NULL) {
        sprintf(errstr,"setup_parameter_storage_and_constants(): 1\n");
        return(MEMORY_ERROR);
    }
    if((dz->iparam      = (int    *)calloc(storage_cnt, sizeof(int)   ))==NULL) {
        sprintf(errstr,"setup_parameter_storage_and_constants(): 2\n");
        return(MEMORY_ERROR);
    }
    if((dz->is_int      = (char   *)calloc(storage_cnt, sizeof(char)))==NULL) {
        sprintf(errstr,"setup_parameter_storage_and_constants(): 3\n");
        return(MEMORY_ERROR);
    }
    if((dz->no_brk      = (char   *)calloc(storage_cnt, sizeof(char)))==NULL) {
        sprintf(errstr,"setup_parameter_storage_and_constants(): 5\n");
        return(MEMORY_ERROR);
    }
    return(FINISHED);
}

/************** INITIALISE_IS_INT_AND_NO_BRK_CONSTANTS *****************/

int initialise_is_int_and_no_brk_constants(int storage_cnt,dataptr dz)
{
    int n;
    for(n=0;n<storage_cnt;n++) {
        dz->is_int[n] = (char)0;
        dz->no_brk[n] = (char)0;
    }
    return(FINISHED);
}

/***************************** MARK_PARAMETER_TYPES **************************/

int mark_parameter_types(dataptr dz,aplptr ap)
{
    int n, m;                                                       /* PARAMS */
    for(n=0;n<ap->max_param_cnt;n++) {
        switch(ap->param_list[n]) {
        case('0'):      break; /* dz->is_active[n] = 0 is default */
        case('i'):      dz->is_active[n] = (char)1; dz->is_int[n] = (char)1;dz->no_brk[n] = (char)1; break;
        case('I'):      dz->is_active[n] = (char)1;     dz->is_int[n] = (char)1;                                                 break;
        case('d'):      dz->is_active[n] = (char)1;                                                     dz->no_brk[n] = (char)1; break;
        case('D'):      dz->is_active[n] = (char)1;     /* normal case: double val or brkpnt file */     break;
        default:
            sprintf(errstr,"Programming error: invalid parameter type in mark_parameter_types()\n");
            return(PROGRAM_ERROR);
        }
    }                                                               /* OPTIONS */
    for(n=0,m=ap->max_param_cnt;n<ap->option_cnt;n++,m++) {
        switch(ap->option_list[n]) {
        case('i'): dz->is_active[m] = (char)1; dz->is_int[m] = (char)1; dz->no_brk[m] = (char)1; break;
        case('I'): dz->is_active[m] = (char)1; dz->is_int[m] = (char)1;                                                  break;
        case('d'): dz->is_active[m] = (char)1;                                                  dz->no_brk[m] = (char)1; break;
        case('D'): dz->is_active[m] = (char)1;  /* normal case: double val or brkpnt file */     break;
        default:
            sprintf(errstr,"Programming error: invalid option type in mark_parameter_types()\n");
            return(PROGRAM_ERROR);
        }
    }                                                               /* VARIANTS */
    for(n=0,m=ap->max_param_cnt + ap->option_cnt;n < ap->variant_param_cnt; n++, m++) {
        switch(ap->variant_list[n]) {
        case('0'): break;
        case('i'): dz->is_active[m] = (char)1; dz->is_int[m] = (char)1; dz->no_brk[m] = (char)1; break;
        case('I'): dz->is_active[m] = (char)1; dz->is_int[m] = (char)1;                                                  break;
        case('d'): dz->is_active[m] = (char)1;                                                  dz->no_brk[m] = (char)1; break;
        case('D'): dz->is_active[m] = (char)1; /* normal case: double val or brkpnt file */              break;
        default:
            sprintf(errstr,"Programming error: invalid variant type in mark_parameter_types()\n");
            return(PROGRAM_ERROR);
        }
    }                                                               /* INTERNAL */
    for(n=0,
            m=ap->max_param_cnt + ap->option_cnt + ap->variant_param_cnt; n<ap->internal_param_cnt; n++,m++) {
        switch(ap->internal_param_list[n]) {
        case('0'):  break;       /* dummy variables: variables not used: but important for internal paream numbering!! */
        case('i'):      dz->is_int[m] = (char)1;        dz->no_brk[m] = (char)1;        break;
        case('d'):                                                              dz->no_brk[m] = (char)1;        break;
        default:
            sprintf(errstr,"Programming error: invalid internal param type in mark_parameter_types()\n");
            return(PROGRAM_ERROR);
        }
    }
    return(FINISHED);
}

/***************************** HANDLE_THE_OUTFILE **************************/

int handle_the_outfile(int *cmdlinecnt,char ***cmdline,int is_launched,dataptr dz)
{
    char *filename = (*cmdline)[0], *p;
    strcpy(dz->outfilename,filename);
    p = dz->outfilename + strlen(dz->outfilename);
    p--;
    while(p > dz->outfilename) {
        if(*p == '.') {
            *p = ENDOFSTR;
            break;
        }
        p--;
    }
    strcat(dz->outfilename,".ana");
    (*cmdline)++;
    (*cmdlinecnt)--;
    return(FINISHED);
}

/***************************** OPEN_THE_OUTFILE **************************/

int open_the_outfile(dataptr dz)
{
    int exit_status;
    if((exit_status = create_sized_outfile(dz->outfilename,dz))<0)
        return(exit_status);
    return(FINISHED);
}

/***************************** ESTABLISH_APPLICATION **************************/

int establish_application(dataptr dz)
{
    aplptr ap;
    if((dz->application = (aplptr)malloc(sizeof (struct applic)))==NULL) {
        sprintf(errstr,"establish_application()\n");
        return(MEMORY_ERROR);
    }
    ap = dz->application;
    memset((char *)ap,0,sizeof(struct applic));
    return(FINISHED);
}

/************************* INITIALISE_VFLAGS *************************/

int initialise_vflags(dataptr dz)
{
    int n;
    if((dz->vflag  = (char *)malloc(dz->application->vflag_cnt * sizeof(char)))==NULL) {
        sprintf(errstr,"INSUFFICIENT MEMORY: vflag store,\n");
        return(MEMORY_ERROR);
    }
    for(n=0;n<dz->application->vflag_cnt;n++)
        dz->vflag[n]  = FALSE;
    return FINISHED;
}

/************************* SETUP_INPUT_PARAM_DEFAULTVALS *************************/

int setup_input_param_defaultval_stores(int tipc,aplptr ap)
{
    int n;
    if((ap->default_val = (double *)malloc(tipc * sizeof(double)))==NULL) {
        sprintf(errstr,"INSUFFICIENT MEMORY for application default values store\n");
        return(MEMORY_ERROR);
    }
    for(n=0;n<tipc;n++)
        ap->default_val[n] = 0.0;
    return(FINISHED);
}

/***************************** SETUP_AND_INIT_INPUT_PARAM_ACTIVITY **************************/

int setup_and_init_input_param_activity(dataptr dz,int tipc)
{
    int n;
    if((dz->is_active = (char   *)malloc((size_t)tipc))==NULL) {
        sprintf(errstr,"setup_and_init_input_param_activity()\n");
        return(MEMORY_ERROR);
    }
    for(n=0;n<tipc;n++)
        dz->is_active[n] = (char)0;
    return(FINISHED);
}

/************************* SETUP_THE_APPLICATION *******************/

int setup_the_application(dataptr dz)
{
    int exit_status;
    aplptr ap;
    if((exit_status = establish_application(dz))<0)         // GLOBAL
        return(FAILED);
    ap = dz->application;
    // SEE parstruct FOR EXPLANATION of next 2 functions
    if((exit_status = set_param_data(ap,0,0,0,""))<0)
        return(FAILED);
    if((exit_status = set_vflgs(ap,"efdsr",5,"DDidd","",0,0,""))<0)
        return(FAILED);
    // set_legal_infile_structure -->
    dz->has_otherfile = FALSE;
    // assign_process_logic -->
    dz->input_data_type = TWO_ANALFILES;
    dz->process_type        = MIN_ANALFILE;
    dz->outfiletype         = ANALFILE_OUT;
    return application_init(dz);    //GLOBAL
}

/************************* PARSE_INFILE_AND_CHECK_TYPE *******************/

int parse_infile_and_check_type(char **cmdline,dataptr dz)
{
    int exit_status;
    infileptr infile_info;
    if(!sloom) {
        if((infile_info = (infileptr)malloc(sizeof(struct filedata)))==NULL) {
            sprintf(errstr,"INSUFFICIENT MEMORY for infile structure to test file data.");
            return(MEMORY_ERROR);
        } else if((exit_status = cdparse(cmdline[0],infile_info))<0) {
            sprintf(errstr,"Failed tp parse input file %s\n",cmdline[0]);
            return(PROGRAM_ERROR);
        } else if(infile_info->filetype != ANALFILE)  {
            sprintf(errstr,"File %s is not of correct type\n",cmdline[0]);
            return(DATA_ERROR);
        } else if((exit_status = copy_parse_info_to_main_structure(infile_info,dz))<0) {
            sprintf(errstr,"Failed to copy file parsing information\n");
            return(PROGRAM_ERROR);
        }
        free(infile_info);
    }
    dz->clength             = dz->wanted / 2;
    dz->nyquist             = dz->infile->origrate/2.0;
    dz->chwidth     = dz->nyquist/(double)(dz->clength-1);
    dz->halfchwidth = dz->chwidth/2.0;
    return(FINISHED);
}

/************************* SETUP_THE_PARAM_RANGES_AND_DEFAULTS *******************/

int setup_the_param_ranges_and_defaults(dataptr dz)
{
    int exit_status;
    aplptr ap = dz->application;
    // set_param_ranges()
    ap->total_input_param_cnt = (char)(ap->max_param_cnt + ap->option_cnt + ap->variant_param_cnt);
    // NB total_input_param_cnt is > 0 !!!s
    if((exit_status = setup_input_param_range_stores(ap->total_input_param_cnt,ap))<0)
        return(FAILED);
    // get_param_ranges()
    ap->lo[0]                       = 0;
    ap->hi[0]                       = 1;
    ap->default_val[0]      = 1;
    ap->lo[1]                       = 0;
    ap->hi[1]                       = 1;
    ap->default_val[1]      = 1;
    ap->lo[2]                       = 0;
    ap->hi[2]                       = 8;
    ap->default_val[2]      = 0;
    ap->lo[3]                       = 0;
    ap->hi[3]                       = 48;
    ap->default_val[3]      = 0;
    ap->lo[4]                       = 0;
    ap->hi[4]                       = 1;
    ap->default_val[4]      = 1;
    if(!sloom)
        put_default_vals_in_all_params(dz);
    return(FINISHED);
}

/********************************* PARSE_SLOOM_DATA *********************************/

int parse_sloom_data(int argc,char *argv[],char ***cmdline,int *cmdlinecnt,dataptr dz)
{
    int exit_status;
    int cnt = 1, infilecnt;
    int filesize, insams, inbrksize;
    double dummy;
    int true_cnt = 0;
    //aplptr ap;

    while(cnt<=PRE_CMDLINE_DATACNT) {
        if(cnt > argc) {
            sprintf(errstr,"Insufficient data sent from TK\n");
            return(DATA_ERROR);
        }
        switch(cnt) {
        case(1):
            if(sscanf(argv[cnt],"%d",&dz->process)!=1) {
                sprintf(errstr,"Cannot read process no. sent from TK\n");
                return(DATA_ERROR);
            }
            break;

        case(2):
            if(sscanf(argv[cnt],"%d",&dz->mode)!=1) {
                sprintf(errstr,"Cannot read mode no. sent from TK\n");
                return(DATA_ERROR);
            }
            if(dz->mode > 0)
                dz->mode--;
            //setup_particular_application() =
            if((exit_status = setup_the_application(dz))<0)
                return(exit_status);
            //ap = dz->application;
                        break;

                case(3):
                        if(sscanf(argv[cnt],"%d",&infilecnt)!=1) {
                                sprintf(errstr,"Cannot read infilecnt sent from TK\n");
                                return(DATA_ERROR);
                        }
                        if(infilecnt < 1) {
                                true_cnt = cnt + 1;
                                cnt = PRE_CMDLINE_DATACNT;      /* force exit from loop after assign_file_data_storage */
                        }
                        if((exit_status = assign_file_data_storage(infilecnt,dz))<0)
                                return(exit_status);
                        break;
                case(INPUT_FILETYPE+4):
                        if(sscanf(argv[cnt],"%d",&dz->infile->filetype)!=1) {
                                sprintf(errstr,"Cannot read filetype sent from TK (%s)\n",argv[cnt]);
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_FILESIZE+4):
                        if(sscanf(argv[cnt],"%d",&filesize)!=1) {
                                sprintf(errstr,"Cannot read infilesize sent from TK\n");
                                return(DATA_ERROR);
                        }
                        dz->insams[0] = filesize;
                        break;
                case(INPUT_INSAMS+4):
                        if(sscanf(argv[cnt],"%d",&insams)!=1) {
                                sprintf(errstr,"Cannot read insams sent from TK\n");
                                return(DATA_ERROR);
                        }
                        dz->insams[0] = insams;
                        break;
                case(INPUT_SRATE+4):
                        if(sscanf(argv[cnt],"%d",&dz->infile->srate)!=1) {
                                sprintf(errstr,"Cannot read srate sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_CHANNELS+4):
                        if(sscanf(argv[cnt],"%d",&dz->infile->channels)!=1) {
                                sprintf(errstr,"Cannot read channels sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_STYPE+4):
                        if(sscanf(argv[cnt],"%d",&dz->infile->stype)!=1) {
                                sprintf(errstr,"Cannot read stype sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_ORIGSTYPE+4):
                        if(sscanf(argv[cnt],"%d",&dz->infile->origstype)!=1) {
                                sprintf(errstr,"Cannot read origstype sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_ORIGRATE+4):
                        if(sscanf(argv[cnt],"%d",&dz->infile->origrate)!=1) {
                                sprintf(errstr,"Cannot read origrate sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_MLEN+4):
                        if(sscanf(argv[cnt],"%d",&dz->infile->Mlen)!=1) {
                                sprintf(errstr,"Cannot read Mlen sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_DFAC+4):
                        if(sscanf(argv[cnt],"%d",&dz->infile->Dfac)!=1) {
                                sprintf(errstr,"Cannot read Dfac sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_ORIGCHANS+4):
                        if(sscanf(argv[cnt],"%d",&dz->infile->origchans)!=1) {
                                sprintf(errstr,"Cannot read origchans sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_SPECENVCNT+4):
                        if(sscanf(argv[cnt],"%d",&dz->infile->specenvcnt)!=1) {
                                sprintf(errstr,"Cannot read specenvcnt sent from TK\n");
                                return(DATA_ERROR);
                        }
                        dz->specenvcnt = dz->infile->specenvcnt;
                        break;
                case(INPUT_WANTED+4):
                        if(sscanf(argv[cnt],"%d",&dz->wanted)!=1) {
                                sprintf(errstr,"Cannot read wanted sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_WLENGTH+4):
                        if(sscanf(argv[cnt],"%d",&dz->wlength)!=1) {
                                sprintf(errstr,"Cannot read wlength sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_OUT_CHANS+4):
                        if(sscanf(argv[cnt],"%d",&dz->out_chans)!=1) {
                                sprintf(errstr,"Cannot read out_chans sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                        /* RWD these chanegs to samps - tk will have to deal with that! */
                case(INPUT_DESCRIPTOR_BYTES+4):
                        if(sscanf(argv[cnt],"%d",&dz->descriptor_samps)!=1) {
                                sprintf(errstr,"Cannot read descriptor_samps sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_IS_TRANSPOS+4):
                        if(sscanf(argv[cnt],"%d",&dz->is_transpos)!=1) {
                                sprintf(errstr,"Cannot read is_transpos sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_COULD_BE_TRANSPOS+4):
                        if(sscanf(argv[cnt],"%d",&dz->could_be_transpos)!=1) {
                                sprintf(errstr,"Cannot read could_be_transpos sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_COULD_BE_PITCH+4):
                        if(sscanf(argv[cnt],"%d",&dz->could_be_pitch)!=1) {
                                sprintf(errstr,"Cannot read could_be_pitch sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_DIFFERENT_SRATES+4):
                        if(sscanf(argv[cnt],"%d",&dz->different_srates)!=1) {
                                sprintf(errstr,"Cannot read different_srates sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_DUPLICATE_SNDS+4):
                        if(sscanf(argv[cnt],"%d",&dz->duplicate_snds)!=1) {
                                sprintf(errstr,"Cannot read duplicate_snds sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_BRKSIZE+4):
                        if(sscanf(argv[cnt],"%d",&inbrksize)!=1) {
                                sprintf(errstr,"Cannot read brksize sent from TK\n");
                                return(DATA_ERROR);
                        }
                        if(inbrksize > 0) {
                                switch(dz->input_data_type) {
                                case(WORDLIST_ONLY):
                                        break;
                                case(PITCH_AND_PITCH):
                                case(PITCH_AND_TRANSPOS):
                                case(TRANSPOS_AND_TRANSPOS):
                                        dz->tempsize = inbrksize;
                                        break;
                                case(BRKFILES_ONLY):
                                case(UNRANGED_BRKFILE_ONLY):
                                case(DB_BRKFILES_ONLY):
                                case(ALL_FILES):
                                case(ANY_NUMBER_OF_ANY_FILES):
                                        if(dz->extrabrkno < 0) {
                                                sprintf(errstr,"Storage location number for brktable not established by CDP.\n");
                                                return(DATA_ERROR);
                                        }
                                        if(dz->brksize == NULL) {
                                                sprintf(errstr,"CDP has not established storage space for input brktable.\n");
                                                return(PROGRAM_ERROR);
                                        }
                                        dz->brksize[dz->extrabrkno]     = inbrksize;
                                        break;
                                default:
                                        sprintf(errstr,"TK sent brktablesize > 0 for input_data_type [%d] not using brktables.\n",
                                        dz->input_data_type);
                                        return(PROGRAM_ERROR);
                                }
                                break;
                        }
                        break;
                case(INPUT_NUMSIZE+4):
                        if(sscanf(argv[cnt],"%d",&dz->numsize)!=1) {
                                sprintf(errstr,"Cannot read numsize sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_LINECNT+4):
                        if(sscanf(argv[cnt],"%d",&dz->linecnt)!=1) {
                                sprintf(errstr,"Cannot read linecnt sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_ALL_WORDS+4):
                        if(sscanf(argv[cnt],"%d",&dz->all_words)!=1) {
                                sprintf(errstr,"Cannot read all_words sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_ARATE+4):
                        if(sscanf(argv[cnt],"%f",&dz->infile->arate)!=1) {
                                sprintf(errstr,"Cannot read arate sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_FRAMETIME+4):
                        if(sscanf(argv[cnt],"%lf",&dummy)!=1) {
                                sprintf(errstr,"Cannot read frametime sent from TK\n");
                                return(DATA_ERROR);
                        }
                        dz->frametime = (float)dummy;
                        break;
                case(INPUT_WINDOW_SIZE+4):
                        if(sscanf(argv[cnt],"%f",&dz->infile->window_size)!=1) {
                                sprintf(errstr,"Cannot read window_size sent from TK\n");
                                        return(DATA_ERROR);
                        }
                        break;
                case(INPUT_NYQUIST+4):
                        if(sscanf(argv[cnt],"%lf",&dz->nyquist)!=1) {
                                sprintf(errstr,"Cannot read nyquist sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_DURATION+4):
                        if(sscanf(argv[cnt],"%lf",&dz->duration)!=1) {
                                sprintf(errstr,"Cannot read duration sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_MINBRK+4):
                        if(sscanf(argv[cnt],"%lf",&dz->minbrk)!=1) {
                                sprintf(errstr,"Cannot read minbrk sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_MAXBRK+4):
                        if(sscanf(argv[cnt],"%lf",&dz->maxbrk)!=1) {
                                sprintf(errstr,"Cannot read maxbrk sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_MINNUM+4):
                        if(sscanf(argv[cnt],"%lf",&dz->minnum)!=1) {
                                sprintf(errstr,"Cannot read minnum sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                case(INPUT_MAXNUM+4):
                        if(sscanf(argv[cnt],"%lf",&dz->maxnum)!=1) {
                                sprintf(errstr,"Cannot read maxnum sent from TK\n");
                                return(DATA_ERROR);
                        }
                        break;
                default:
                        sprintf(errstr,"case switch item missing: parse_sloom_data()\n");
                        return(PROGRAM_ERROR);
                }
                cnt++;
        }
        if(cnt!=PRE_CMDLINE_DATACNT+1) {
                sprintf(errstr,"Insufficient pre-cmdline params sent from TK\n");
                return(DATA_ERROR);
        }

        if(true_cnt)
                cnt = true_cnt;
        *cmdlinecnt = 0;

        while(cnt < argc) {
                if((exit_status = get_tk_cmdline_word(cmdlinecnt,cmdline,argv[cnt]))<0)
                        return(exit_status);
                cnt++;
        }
        return(FINISHED);
}

/********************************* GET_TK_CMDLINE_WORD *********************************/

int get_tk_cmdline_word(int *cmdlinecnt,char ***cmdline,char *q)
{
        if(*cmdlinecnt==0) {
                if((*cmdline = (char **)malloc(sizeof(char *)))==NULL)  {
                        sprintf(errstr,"INSUFFICIENT MEMORY for TK cmdline array.\n");
                        return(MEMORY_ERROR);
                }
        } else {
                if((*cmdline = (char **)realloc(*cmdline,((*cmdlinecnt)+1) * sizeof(char *)))==NULL)    {
                        sprintf(errstr,"INSUFFICIENT MEMORY for TK cmdline array.\n");
                        return(MEMORY_ERROR);
                }
        }
        if(((*cmdline)[*cmdlinecnt] = (char *)malloc((strlen(q) + 1) * sizeof(char)))==NULL)    {
                sprintf(errstr,"INSUFFICIENT MEMORY for TK cmdline item %d.\n",(*cmdlinecnt)+1);
                return(MEMORY_ERROR);
        }
        strcpy((*cmdline)[*cmdlinecnt],q);
        (*cmdlinecnt)++;
        return(FINISHED);
}


/****************************** ASSIGN_FILE_DATA_STORAGE *********************************/

int assign_file_data_storage(int infilecnt,dataptr dz)
{
        int exit_status;
        int no_sndfile_system_files = FALSE;
        dz->infilecnt = infilecnt;
        if((exit_status = allocate_filespace(dz))<0)
                return(exit_status);
        if(no_sndfile_system_files)
                dz->infilecnt = 0;
        return(FINISHED);
}

/************************* redundant functions: to ensure libs compile OK *******************/

int assign_process_logic(dataptr dz)
{
        return(FINISHED);
}

void set_legal_infile_structure(dataptr dz)
{}

int set_legal_internalparam_structure(int process,int mode,aplptr ap)
{
        return(FINISHED);
}

int setup_internal_arrays_and_array_pointers(dataptr dz)
{
        return(FINISHED);
}

int establish_bufptrs_and_extra_buffers(dataptr dz)
{
        return(FINISHED);
}

int get_process_no(char *prog_identifier_from_cmdline,dataptr dz)
{
        return(FINISHED);
}

int read_special_data(char *str,dataptr dz)
{
        return(FINISHED);
}

int inner_loop(int *peakscore,int *descnt,int *in_start_portion,int *least,int *pitchcnt,int windows_in_buf,dataptr dz)
{
        return FINISHED;
}

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

int get_the_process_no(char *prog_identifier_from_cmdline,dataptr dz)
{
        if      (!strcmp(prog_identifier_from_cmdline,"spectwin"))              dz->process = SPECTWIN;
        else {
                sprintf(errstr,"Unknown program identification string '%s'\n",prog_identifier_from_cmdline);
                return(USAGE_ONLY);
        }
        return(FINISHED);
}

/******************************** USAGE1 ********************************/

int usage1(void)
{
        return(usage2("spectwin"));
}

/******************************** USAGE2 ********************************/

int usage2(char *str)
{
        if(!strcmp(str,"spectwin")) {
                fprintf(stdout,
            "USAGE: spectwin spectwin\n"
                "       1-4 inanal1 inanal2 outanal [-ffrqint] [-eenvint] [-ddupl -sstep -rdec]\n"
                "\n"
                "FRQINT   Dominance of spectral freqs of infile2 (range  0-1: dflt 1.0).\n"
                "ENVINT   Dominance of spectral envelope of infile2 (range  0-1: dflt 1.0).\n"
                "DUPL     Duplicate original sound-1 \"dupl\" times, at higher pitches.\n"
                "STEP     pitchstep (semitones) at each duplication.\n"
                "DEC      Level multiplier from one transposition to next, in duplications.\n"
                "\n"
                "MODE 1  Formant envelope of file 1 v Formant envelope of file 2.\n"
                "MODE 2  Formant envelope of file 1 v Total envelope of file 2.\n"
                "MODE 3  Total envelope of file 1 v Formant envelope of file 2.\n"
                "MODE 4  Total envelope of file 1 v total envelope of file 2.\n"
                "\n");
        } else
                fprintf(stdout,"Unknown option '%s'\n",str);
        return(USAGE_ONLY);
}

int usage3(char *str1,char *str2)
{
        fprintf(stderr,"Insufficient parameters on command line.\n");
        return(USAGE_ONLY);
}

/************************ SPECTWIN *********************/

int spectwin(dataptr dz)
{
        int exit_status, cc, vc, n, chan, newcc;
        double fi = dz->param[TWIN_FRQINTP], ei = dz->param[TWIN_ENVINTP];
        float *ibuf0 = dz->flbufptr[INANAL0], *ibuf1 = dz->flbufptr[INANAL1], *obuf = dz->flbufptr[OUTANAL];
        float *accu = dz->flbufptr[ACCUOCTS];
        double thisamp0, thisamp1, rolloff, frqmult;
        float amp, frq;
        int sampsread0, sampsread1;
        int OK  = 1;
        dz->total_windows = 0;
        if(sloom)
                dz->total_samps_read = 0L;
        dz->time = 0.0f;
        while(OK) {
                if((sampsread0 = fgetfbufEx(ibuf0, dz->buflen,dz->ifd[0],0)) < 0) {
                        sprintf(errstr,"Can't read samples from input soundfile 1.\n");
                        return(SYSTEM_ERROR);
                }
                rectify_window(ibuf0,dz);
                if(dz->iparam[2] > 0) {
                        memcpy((char *)accu,(char *)ibuf0,dz->buflen * sizeof(float));
                        for(cc=0,vc=0;cc <dz->clength;cc++,vc+=2) {
                                amp = ibuf0[AMPP];
                                rolloff = dz->param[4];
                                for(n = 1;n <= dz->iparam[2];n++) {
                                        frqmult = pow(2.0,((dz->param[3] * n)/SEMITONES_PER_OCTAVE));
                                        frq = (float)(ibuf0[FREQ] * frqmult);
                                        if(frq >= dz->nyquist)
                                                break;
                                        chan = (int)floor(frq/dz->chwidth);
                                        newcc = chan * 2;
                                        if(amp * rolloff > accu[newcc]) {
                                                accu[newcc]   = amp;
                                                accu[newcc+1] = frq;
                                        }
                                        rolloff *= dz->param[4];
                                }
                        }
                        memcpy((char *)ibuf0,(char *)accu,dz->buflen * sizeof(float));
                }
                if((sampsread1 = fgetfbufEx(ibuf1, dz->buflen,dz->ifd[1],0)) < 0) {
                        sprintf(errstr,"Can't read samples from input soundfile 2.\n");
                        return(SYSTEM_ERROR);
                }
                dz->ssampsread = min(sampsread0,sampsread1);
                dz->samps_left -= dz->ssampsread;
                dz->total_samps_read += dz->ssampsread;
                if(dz->ssampsread <= 0)
                        break;
                rectify_window(ibuf1,dz);
                if(dz->total_windows==0)
                        memset((char *)obuf,0,dz->buflen * sizeof(float));
                else {
                        if((exit_status = read_values_from_all_existing_brktables(dz->time,dz))<0)
                                return(exit_status);
                        switch(dz->mode) {
                        case(0):
                                if((exit_status = extract_specenv(0,0,dz))<0)
                                        return exit_status;
                                if((exit_status = extract_specenv(1,1,dz))<0)
                                        return exit_status;
                                for(cc=0,vc=0;cc <dz->clength;cc++,vc+=2) {
                                        if((exit_status= getspecenvamp(&thisamp0,ibuf0[FREQ],0,dz)) < 0)
                                                return exit_status;
                                        if((exit_status= getspecenvamp(&thisamp1,ibuf1[FREQ],1,dz)) < 0)
                                                return exit_status;
                                        obuf[AMPP] = (float)((thisamp0 * (1-ei)) + (thisamp1 * ei));
                                        obuf[FREQ] = (float)((ibuf0[FREQ] * (1-fi)) + (ibuf1[FREQ] * fi));
                                }
                                break;
                        case(1):
                                if((exit_status = extract_specenv(0,0,dz))<0)
                                        return exit_status;
                                for(cc=0,vc=0;cc <dz->clength;cc++,vc+=2) {
                                        if((exit_status= getspecenvamp(&thisamp0,ibuf0[FREQ],0,dz)) < 0)
                                                return exit_status;
                                        obuf[AMPP] = (float)((thisamp0 * (1-ei)) + (ibuf1[AMPP] * ei));
                                        obuf[FREQ] = (float)((ibuf0[FREQ] * (1-fi)) + (ibuf1[FREQ] * fi));
                                }
                                break;
                        case(2):
                                if((exit_status = extract_specenv(1,1,dz))<0)
                                        return exit_status;
                                for(cc=0,vc=0;cc <dz->clength;cc++,vc+=2) {
                                        if((exit_status= getspecenvamp(&thisamp1,ibuf1[FREQ],1,dz)) < 0)
                                                return exit_status;
                                obuf[AMPP] = (float)((ibuf0[AMPP] * (1-ei)) + (thisamp1 * ei));
                                        obuf[FREQ] = (float)((ibuf0[FREQ] * (1-fi)) + (ibuf1[FREQ] * fi));
                                }
                                break;
                        case(3):
                                for(cc=0,vc=0;cc <dz->clength;cc++,vc+=2) {
                                        obuf[AMPP] = (float)((ibuf0[AMPP] * (1-ei)) + (ibuf1[AMPP] * ei));
                                        obuf[FREQ] = (float)((ibuf0[FREQ] * (1-fi)) + (ibuf1[FREQ] * fi));
                                }
                                break;
                        }
                }
                if((exit_status = write_samps(obuf,dz->buflen,dz))<0)
                        return(exit_status);
                dz->total_windows++;
                dz->time = (float)(dz->time + dz->frametime);
        }
        return(FINISHED);
}

/************************ GET_THE_MODE_NO *********************/

int get_the_mode_no(char *str, dataptr dz)
{
        if(sscanf(str,"%d",&dz->mode)!=1) {
                sprintf(errstr,"Cannot read mode of program.\n");
                return(USAGE_ONLY);
        }
        if(dz->mode <= 0 || dz->mode > dz->maxmode) {
                sprintf(errstr,"Program mode value [%d] is out of range [1 - %d].\n",dz->mode,dz->maxmode);
                return(USAGE_ONLY);
        }
        dz->mode--;             /* CHANGE TO INTERNAL REPRESENTATION OF MODE NO */
        return(FINISHED);
}

/********************** EXTRACT_SPECENV *******************/

int extract_specenv(int bufptr_no,int storeno,dataptr dz)        /* bufptr_no = flbufptr number (usually 0) */
{
        int    n, cc, vc, specenvcnt_less_one;
        int    botchan, topchan;
        double botfreq, topfreq;
        double bwidth_in_chans;
        float *ampstore;
        switch(storeno) {
        case(0):        ampstore = dz->specenvamp;      break;
        case(1):        ampstore = dz->specenvamp2;     break;
        default:
                sprintf(errstr,"Unknown storenumber in extract_specenv()\n");
                return(PROGRAM_ERROR);
        }
        specenvcnt_less_one = dz->infile->specenvcnt - 1;
        vc = 0;
        for(n=0;n<dz->buflen;n++)
                ampstore[n] = (float)0.0;
        topfreq = 0.0f;
        n = 0;
        while(n < specenvcnt_less_one) {
                botfreq  = topfreq;
                botchan  = (int)((botfreq + dz->halfchwidth)/dz->chwidth); /* TRUNCATE */
                botchan -= CHAN_SRCHRANGE_F;
                botchan  =  max(botchan,0);
                topfreq  = dz->specenvtop[n];
                topchan  = (int)((topfreq + dz->halfchwidth)/dz->chwidth); /* TRUNCATE */
                topchan += CHAN_SRCHRANGE_F;
                topchan  =  min(topchan,dz->clength);
                for(cc = botchan,vc = botchan * 2; cc < topchan; cc++,vc += 2) {
                        if(dz->flbufptr[bufptr_no][FREQ] >= botfreq && dz->flbufptr[bufptr_no][FREQ] < topfreq)
                                ampstore[n] = (float)(ampstore[n] + dz->flbufptr[bufptr_no][AMPP]);
                }
                bwidth_in_chans   = (double)(topfreq - botfreq)/dz->chwidth;
                ampstore[n] = (float)(ampstore[n]/bwidth_in_chans);
                n++;
        }
        return(FINISHED);
}

/*************************** ALLOCATE_ANALDATA_PLUS_FORMANTDATA_BUFFER ****************************/

int allocate_spectwin_buffers(dataptr dz)
{
        int exit_status, n;
        /*int cnt = 0;*/
        if(dz->bptrcnt < 9) {
                sprintf(errstr,"Insufficient bufptrs established in allocate_analdata_plus_formantdata_buffer()\n");
                return(PROGRAM_ERROR);
        }
        dz->buflen = dz->wanted;
        if((dz->bigfbuf = (float*)malloc(dz->buflen * dz->bptrcnt * sizeof(float)))==NULL) {
                sprintf(errstr,"INSUFFICIENT MEMORY for sound buffers.\n");
                return(MEMORY_ERROR);
        }
        dz->big_fsize  = dz->buflen;
        dz->flbufptr[0] = dz->bigfbuf;
        for(n = 1;n < 9; n++)
                dz->flbufptr[n] = dz->flbufptr[n-1] + dz->buflen;
        dz->specenvtop  = dz->flbufptr[SPECENVTOP];
        dz->specenvfrq  = dz->flbufptr[SPECENVFRQ];
        dz->specenvpch  = dz->flbufptr[SPECENVPCH];
        dz->specenvamp  = dz->flbufptr[SPECENVAMP];
        dz->specenvamp2 = dz->flbufptr[SPECENVAMP2];
        memset((char *)dz->specenvpch, 0,dz->buflen * sizeof(float));
        memset((char *)dz->specenvfrq, 0,dz->buflen * sizeof(float));
        memset((char *)dz->specenvtop, 0,dz->buflen * sizeof(float));
        memset((char *)dz->specenvamp, 0,dz->buflen * sizeof(float));
        memset((char *)dz->specenvamp2,0,dz->buflen * sizeof(float));
        dz->clength = dz->infile->channels/2;
        if((exit_status = set_specenv_frqs(dz->clength + 1,dz))<0)
                return(exit_status);
        return(FINISHED);
}

/************************ SET_SPECENV_FRQS ************************
 *
 * FREQWISE BANDS = number of channels for each specenv point
 * PICHWISE BANDS  = number of points per octave
 */

int set_specenv_frqs(int arraycnt,dataptr dz)
{
        int exit_status;
        double bandbot, *interval;
        int m, n, k = 0, cc;
        dz->formant_bands = DEFAULT_FORMANT_BANDS;
        if((exit_status = setup_octaveband_steps(&interval,dz))<0)
                return(exit_status);
        if((exit_status = setup_low_octave_bands(arraycnt,dz))<0)
                return(exit_status);
        k  = TOP_OF_LOW_OCTAVE_BANDS;
        cc = CHAN_ABOVE_LOW_OCTAVES;
        while(cc <= dz->clength) {
                m = 0;
                if((bandbot = dz->chwidth * (double)cc) >= dz->nyquist)
                        break;
                for(n=0;n<dz->formant_bands;n++) {
                        if(k >= arraycnt) {
                                sprintf(errstr,"Formant array too small: set_specenv_frqs()\n");
                                return(PROGRAM_ERROR);
                        }
                        dz->specenvfrq[k]   = (float)(bandbot * interval[m++]);
                        dz->specenvpch[k]   = (float)log10(dz->specenvfrq[k]);
                        dz->specenvtop[k++] = (float)(bandbot * interval[m++]);
                }
                cc *= 2;                /* 8-16: 16-32: 32-64 etc as 8vas, then split into bands */
        }
        dz->specenvfrq[k]  = (float)dz->nyquist;
        dz->specenvpch[k]  = (float)log10(dz->nyquist);
        dz->specenvtop[k]  = (float)dz->nyquist;
        k++;
        dz->infile->specenvcnt = k;
        return(FINISHED);
}

/************************* SETUP_OCTAVEBAND_STEPS ************************/

int setup_octaveband_steps(double **interval,dataptr dz)
{
        double octave_step;
        int n = 1, m = 0, halfbands_per_octave = dz->formant_bands * 2;
        if((*interval = (double *)malloc(halfbands_per_octave * sizeof(double)))==NULL) {
                sprintf(errstr,"INSUFFICIENT MEMORY establishing interval array for formants.\n");
                return(MEMORY_ERROR);
        }
        while(n < halfbands_per_octave) {
                octave_step   = (double)n++/(double)halfbands_per_octave;
                (*interval)[m++] = pow(2.0,octave_step);
        }
        (*interval)[m] = 2.0;
        return(FINISHED);
}

/************************ SETUP_LOW_OCTAVE_BANDS ***********************
 *
 * Lowest PVOC channels span larger freq steps and therefore we must
 * group them in octave bands, rather than in anything smaller.
 */

int setup_low_octave_bands(int arraycnt,dataptr dz)
{
        if(arraycnt < LOW_OCTAVE_BANDS) {
                sprintf(errstr,"Insufficient array space for low_octave_bands\n");
                return(PROGRAM_ERROR);
        }
        dz->specenvfrq[0] = (float)1.0;                                 /* frq whose log is 0 */
        dz->specenvpch[0] = (float)0.0;
        dz->specenvtop[0] = (float)dz->chwidth;                 /* 8VA wide bands */
        dz->specenvfrq[1] = (float)(dz->chwidth * 1.5); /* Centre Chs 1-2 */
        dz->specenvpch[1] = (float)log10(dz->specenvfrq[1]);
        dz->specenvtop[1] = (float)(dz->chwidth * 2.0);
        dz->specenvfrq[2] = (float)(dz->chwidth * 3.0); /* Centre Chs 2-4 */
        dz->specenvpch[2] = (float)log10(dz->specenvfrq[2]);
        dz->specenvtop[2] = (float)(dz->chwidth * 4.0);
        dz->specenvfrq[3] = (float)(dz->chwidth * 6.0); /* Centre Chs 4-8 */
        dz->specenvpch[3] = (float)log10(dz->specenvfrq[3]);
        dz->specenvtop[3] = (float)(dz->chwidth * 8.0);
        return(FINISHED);
}

/**************************** GETSPECENVAMP *************************/

int getspecenvamp(double *thisamp,float thisfrq,int storeno,dataptr dz)
{
        double pp, ratio, ampdiff;
        float *ampstore;
        int z = 1;
        if(thisfrq<0.0) {       /* NOT SURE THIS IS CORRECT */
                *thisamp = 0.0; /* SHOULD WE PHASE INVERT & RETURN A -ve AMP ?? */
                return(FINISHED);
        }
        if(thisfrq<=1.0)
                pp = 0.0;
        else
                pp = log10(thisfrq);
        while( dz->specenvpch[z] < pp){
                z++;
                /*RWD may need to trap on size of array? */
                if(z == dz->infile->specenvcnt -1)
                        break;
        }
        switch(storeno) {
        case(0):
                ampstore = dz->specenvamp;      break;
        case(1):
                ampstore = dz->specenvamp2;     break;
        default:
                sprintf(errstr,"Unknown storenumber in getspecenvamp()\n");
                return(PROGRAM_ERROR);
        }
        ratio    = (pp - dz->specenvpch[z-1])/(dz->specenvpch[z] - dz->specenvpch[z-1]);
        ampdiff  = ampstore[z] - ampstore[z-1];
        *thisamp = ampstore[z-1] + (ampdiff * ratio);
        *thisamp = max(0.0,*thisamp);
        return(FINISHED);
}

int check_spectwin_param_validity_and_consistency(dataptr dz)
{
        int n;
        double frqmult;
        for(n = 1;n <= dz->iparam[2];n++) {
                frqmult = pow(2.0,((dz->param[3] * n)/SEMITONES_PER_OCTAVE));
                if(frqmult > 65536.0) {
                        sprintf(errstr,"Transposition of %d * %lf semitones ( = %lf octaves) too great.\n",n,dz->param[3],(dz->param[3] * n)/SEMITONES_PER_OCTAVE);
                        return(DATA_ERROR);
                }
        }
        return FINISHED;
}
