/*
 * 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
 *
 */



/*
 *      INPUT MUST BE MONO
 */

#include <stdio.h>
#include <stdlib.h>
#include <structures.h>
#include <tkglobals.h>
#include <grain.h>
#include <filetype.h>
#include <modeno.h>
#include <formants.h>
#include <cdpmain.h>
#include <special.h>
#include <logic.h>
#include <globcon.h>
#include <cdpmain.h>
#include <sfsys.h>
#include <ctype.h>
#include <string.h>
#include <standalone.h>
#include <osbind.h>

#if defined unix || defined __GNUC__
#define round(x) lround((x))
#endif
#ifndef HUGE
#define HUGE 3.40282347e+38F
#endif

char errstr[2400];

/*extern*/ int  sloom = 0;
/* TW May 2001 */
/*extern*/ int sloombatch = 0;  /*TW may 2001 */
/*extern*/ int anal_infiles = 0;
/*extern*/ int is_converted_to_stereo = -1;
const char* cdp_version = "7.1.0";

static int get_the_process_no(char *prog_identifier_from_cmdline,dataptr dz);
static int setup_grextend_application(dataptr dz);
static int parse_infile_and_check_type(char **cmdline,dataptr dz);
static int setup_grextend_param_ranges_and_defaults(dataptr dz);
static int handle_the_outfile(int *cmdlinecnt,char ***cmdline,dataptr dz);
static int check_grextend_param_validity_and_consistency(dataptr dz);
static int grevex(dataptr dz);
static void get_rrrenv_of_buffer(int samps_to_process,int envwindow_sampsize,float **envptr,float *buffer);
static float getmaxsampr(int startsamp, int sampcnt,float *buffer);
static int grevex(dataptr dz);
static void do_repet_restricted_perm(int *arr, int *perm, int arrsiz, int *endval);
static int do_envgrain_addwrite(int startsearch,int endsearch,int *last_total_samps_read,int *obufpos,dataptr dz);
static int establish_application(dataptr dz);
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 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 setup_and_init_input_brktable_constants(dataptr dz,int brkcnt);
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 assign_file_data_storage(int infilecnt,dataptr dz);
static int get_tk_cmdline_word(int *cmdlinecnt,char ***cmdline,char *q);
static void hhinsert(int m,int t,int setlen,int *perm);
static void hhprefix(int m,int setlen,int *perm);
static void hhshuflup(int k,int setlen,int *perm);
static int parse_sloom_data(int argc,char *argv[],char ***cmdline,int *cmdlinecnt,dataptr dz);
static int create_grextend_sndbufs(dataptr dz);

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

int main(int argc,char *argv[])
{
    int exit_status;
    //      FILE *fp   = NULL;
    dataptr dz = NULL;
    char **cmdline;
    int  cmdlinecnt, n;
    //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) {
        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);
        }
        /* INITIAL CHECK OF CMDLINE DATA */
        if((exit_status = make_initial_cmdline_check(&argc,&argv))<0) {
            print_messages_and_close_sndfiles(exit_status,is_launched,dz);
            return(FAILED);
        }
        cmdline    = argv;      /* GET PRE_DATA, ALLOCATE THE APPLICATION, CHECK FOR EXTRA INFILES */
        cmdlinecnt = argc;
        if((get_the_process_no(argv[0],dz))<0)
            return(FAILED);
        cmdline++;
        cmdlinecnt--;
        dz->maxmode = 0;
        if((exit_status = setup_grextend_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) {
            print_messages_and_close_sndfiles(exit_status,is_launched,dz);
            return(FAILED);
        }
    } else {
        if((exit_status = parse_sloom_data(argc,argv,&cmdline,&cmdlinecnt,dz))<0) {     /* includes setup_particular_application()      */
            exit_status = print_messages_and_close_sndfiles(exit_status,is_launched,dz);/* and cmdlinelength check = sees extra-infiles */
            return(exit_status);
        }
    }

    //ap = dz->application;

    // parse_infile_and_hone_type() =
    if((exit_status = parse_infile_and_check_type(cmdline,dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    // setup_param_ranges_and_defaults() =
    if((exit_status = setup_grextend_param_ranges_and_defaults(dz))<0) {
        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);
    }
    //TW UPDATE
    cmdlinecnt--;
    cmdline++;
    // handle_outfile() =
    if((exit_status = handle_the_outfile(&cmdlinecnt,&cmdline,dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    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);
    }
    //      check_param_validity_and_consistency....
    if((exit_status = check_grextend_param_validity_and_consistency(dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    is_launched = TRUE;
    switch(dz->process) {
    case(GREV_EXTEND): dz->bufcnt = 3; break;
    }
    if((dz->sampbuf = (float **)malloc(sizeof(float *) * (dz->bufcnt+1)))==NULL) {
        sprintf(errstr,"INSUFFICIENT MEMORY establishing sample buffers.\n");
        return(MEMORY_ERROR);
    }
    if((dz->sbufptr = (float **)malloc(sizeof(float *) * dz->bufcnt))==NULL) {
        sprintf(errstr,"INSUFFICIENT MEMORY establishing sample buffer pointers.\n");
        return(MEMORY_ERROR);
    }
    for(n = 0;n <dz->bufcnt; n++)
        dz->sampbuf[n] = dz->sbufptr[n] = (float *)0;
    dz->sampbuf[n] = (float *)0;
    if((exit_status = create_grextend_sndbufs(dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    // param_preprocess() .....

    if((exit_status = grevex(dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    if((exit_status = complete_output(dz))<0) {
        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
        return(FAILED);
    }
    exit_status = print_messages_and_close_sndfiles(FINISHED,is_launched,dz);
    free(dz);
    return(SUCCEEDED);
}

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

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

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

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


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

int usage2(char *str)
{
    if(!strcmp(str,"extend")) {
        fprintf(stdout,
                "FIND GRAINS IN A SOUND, AND EXTEND AREA THAT CONTAINS THEM\n\n"
                "USAGE:\n"
                "grainex extend inf outf wsiz trof plus stt end\n\n"
                "WSIZ    sizeof window in ms, determines size of grains to find.\n"
                "TROF    acceptable trough height, relative to adjacent peaks (range >0 - <1)\n"
                "PLUS    how much duration to add to source.\n"
                "STT     Time of start of grain material within source.\n"
                "END     Time of end of grain material within source.\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);
}

/************************* EXTRACT_RRR_ENV_FROM_SNDFILE *******************************/

int extract_rrr_env_from_sndfile(int paramno,dataptr dz)
{
    int n;
    float *envptr;
    int bufcnt;
    if(((bufcnt = dz->insams[0]/dz->buflen)*dz->buflen)!=dz->insams[0])
        bufcnt++;
    envptr = dz->env;
    for(n = 0; n < bufcnt; n++)     {
        if((dz->ssampsread = fgetfbufEx(dz->sampbuf[0], dz->buflen,dz->ifd[0],0)) < 0) {
            sprintf(errstr,"Can't read samples from soundfile: extract_rrr_env_from_sndfile()\n");
            return(SYSTEM_ERROR);
        }
        if(sloom)
            display_virtual_time(dz->total_samps_read,dz);
        get_rrrenv_of_buffer(dz->ssampsread,dz->iparam[paramno],&envptr,dz->sampbuf[0]);
    }
    dz->envend = envptr;
    return(FINISHED);
}

/************************* GET_RRRENV_OF_BUFFER *******************************/

void get_rrrenv_of_buffer(int samps_to_process,int envwindow_sampsize,float **envptr,float *buffer)
{
    int  start_samp = 0;
    float *env = *envptr;
    while(samps_to_process >= envwindow_sampsize) {
        *env++       = getmaxsampr(start_samp,envwindow_sampsize,buffer);
        start_samp  += envwindow_sampsize;
        samps_to_process -= envwindow_sampsize;
    }
    if(samps_to_process)    /* Handle any final short buffer */
        *env++ = getmaxsampr(start_samp,samps_to_process,buffer);
    *envptr = env;
}

/*************************** GETMAXSAMPR ******************************/

float getmaxsampr(int startsamp, int sampcnt,float *buffer)
{
    int  i, endsamp = startsamp + sampcnt;
    float thisval, thismaxsamp = 0.0f;
    for(i = startsamp; i<endsamp; i++) {
        if((thisval = (float)fabs(buffer[i]))>thismaxsamp)
            thismaxsamp = thisval;
    }
    return(thismaxsamp);
}

/************************** GREVEX **********************/

int grevex(dataptr dz)
{
    int exit_status, finished, start_negative, *arr, *perm, *arr2, endval, gotstart;
    int n, m, j=0, k, indur, element_cnt, minpeakloc, envcnt, last_total_samps_read, startsearch, endsearch, obufpos;
    int origstartbuf, origsamspread, ibufpos;
    int expansion;
    double maxsamp0, maxsamp1, peakav, minpeakav;
    int firsttrof, up, gotmaxsamp0, crossed_zero_to_positive, crossed_zero_to_negative;
    float *e, *ibuf = dz->sampbuf[0], *obuf = dz->sampbuf[1];
    int *pa;

    if(((envcnt = dz->insams[0]/dz->iparam[GREV_SAMP_WSIZE]) * dz->iparam[GREV_SAMP_WSIZE])!=dz->insams[0])
        envcnt++;
    if((dz->env=(float *)malloc((envcnt + 12) * sizeof(float)))==NULL) {
        sprintf(errstr,"INSUFFICIENT MEMORY for envelope array.\n");
        return(MEMORY_ERROR);
    }
    e = dz->env;
    if((pa =(int *)malloc((envcnt + 12) * sizeof(int)))==NULL) {
        sprintf(errstr,"INSUFFICIENT MEMORY for peak positions array.\n");
        return(MEMORY_ERROR);
    }
    if((exit_status = extract_rrr_env_from_sndfile(GREV_SAMP_WSIZE,dz))<0)  /* Get envel of whole sound */
        return(exit_status);
    dz->total_samps_read = 0;
    display_virtual_time(0,dz);
    envcnt = dz->envend - dz->env;
    n = 0;
    k = 0;
    pa[k++] = 0;
    while(flteq(e[n],e[0])) {
        n++;
        if(n >= envcnt) {
            sprintf(errstr,"NO PEAKS IN THE FILE\n");
            return(GOAL_FAILED);
        }
    }
    if(e[n] < e[0]) {
        firsttrof = 1;
        up = -1;
    } else {
        firsttrof = 0;
        up = 1;
    }

    /* KEEP ONLY THE PEAKS AND TROUGHS OF THE ENVELOPE, AND THEIR LOCATIONS */

    while (n <envcnt) {     /* store peaks and troughs only */
        switch(up) {
        case(1):
            if(e[n] < e[n-1]) {
                dz->env[k] = dz->env[n-1];
                pa[k]  = (n-1) * dz->iparam[GREV_SAMP_WSIZE];
                k++;
                up = -1;
            }
            break;
        case(-1):
            if(e[n] > e[n-1]) {
                dz->env[k] = dz->env[n-1];
                pa[k]  = (n-1) * dz->iparam[GREV_SAMP_WSIZE];
                k++;
                up = 1;
            }
            break;
        }
        n++;
    }
    if((envcnt = k) <= 3) {
        sprintf(errstr,"INSUFFICIENT PEAKS IN THE FILE.\n");
        return(GOAL_FAILED);
    }

    /* KEEP ONLY THE (DEEP ENOUGH) TROUGHS OF THE ENVELOPE */

    switch(firsttrof) {
    case(0):                /* if trof at start */
        k = 1;          /* set item at 0 NOT to be overwritten (as it is first trof) (set k=1) */
        j = 1;          /* search for good trofs between peaks, from (j=)1 */
        break;
    case(1):                /* if trof not at start */
        k = 0;          /* set item at 0 to be overwritten by 1st trof found (k=0) */
        j = 0;          /* search for good trofs between peaks, from (j=)0 */
        break;
    }
    for(n=j;n<envcnt-2;n++) {
        peakav = dz->env[n] + dz->env[n+2];
        if(peakav * dz->param[GREV_TROFRAC] >= dz->env[n+1]) {  /* NB TROF_FAC alreday PRE-MULTIPLIED by 2.0 */
            pa[k]  = pa[n+1];
            k++;
        }
    }
    if((envcnt = k) <= 3) {
        sprintf(errstr,"INSUFFICIENT VALID TROUGHS IN THE FILE.\n");
        return(GOAL_FAILED);
    }

    /* SEARCH WAVEFORM FOR ZERO_CROSSING AT MORE ACCURATE TROUGH */

    if((sndseekEx(dz->ifd[0],0,0))<0) {
        sprintf(errstr,"seek error 1\n");
        return(SYSTEM_ERROR);
    }
    last_total_samps_read = 0;
    k = (int)round((double)dz->iparam[GREV_SAMP_WSIZE] * 0.5);      /* search around size of envel window */
    startsearch = max(pa[0] - k, 0);
    endsearch   = min(pa[0] + k,dz->insams[0]);
    dz->total_samps_read = 0;
    while(startsearch > dz->buflen) {
        dz->total_samps_read += dz->buflen;
        startsearch -= dz->buflen;
    }
    if(dz->total_samps_read > 0) {
        if((sndseekEx(dz->ifd[0],dz->total_samps_read,0))<0) {
            sprintf(errstr,"seek error 2\n");
            return(SYSTEM_ERROR);
        }
        last_total_samps_read = dz->total_samps_read;
        endsearch   -= last_total_samps_read;
    }
    if((exit_status = read_samps(ibuf,dz))<0)
        return(exit_status);
    n = 0;
    finished = 0;
    while(n<envcnt) {
        maxsamp0 = 0.0;
        maxsamp1 = 0.0;
        gotmaxsamp0 = 0;
        minpeakav = HUGE;
        minpeakloc = -1;
        j = startsearch;
        crossed_zero_to_positive = 0;
        crossed_zero_to_negative = 0;
        if(ibuf[j] <= 0)
            start_negative = 1;
        else
            start_negative = 0;
        do {
            if(j >= dz->ssampsread) {
                last_total_samps_read = dz->total_samps_read;
                endsearch -= dz->buflen;
                j                 -= dz->buflen;
                if((exit_status = read_samps(ibuf,dz))<0)
                    return(exit_status);
                if(dz->ssampsread == 0) {
                    finished = 1;
                    break;
                }
            }
            if(!crossed_zero_to_negative) {         /* before signal crosses to negative */
                if(start_negative) {
                    if(ibuf[j] <= 0.0) {
                        j++;
                        continue;
                    }
                    start_negative = 0;
                }
                if(!gotmaxsamp0) {                              /* First time only, look for first maxsamp */
                    if(ibuf[j] > maxsamp0)          /* (after first time, it gets val passed back from 2nd maxsamp */
                        maxsamp0 = ibuf[j];
                }
                if (ibuf[j] < 0.0) {                    /* if not crossed zero to -ve, look for, and mark, zero-cross to -ve */
                    crossed_zero_to_negative = j + last_total_samps_read;
                    gotmaxsamp0 = 1;
                }
            } else if (ibuf[j] >= 0) {              /* if crossed zero to neg and we're now crossing back to +ve */
                crossed_zero_to_positive = 1;
                if(ibuf[j] > maxsamp1)          /* look for 2nd maxsamp */
                    maxsamp1 = ibuf[j];
            } else if (crossed_zero_to_positive) {  /* having crossed from -ve to +ve, we're now -ve again, in a new cycle */
                if((peakav = maxsamp0 + maxsamp1) < minpeakav) {
                    minpeakav = peakav;
                    minpeakloc = crossed_zero_to_negative;
                }
                maxsamp0 = maxsamp1;
                crossed_zero_to_positive = 0;
                crossed_zero_to_negative = 0;
            }
            j++;
        } while(j < endsearch || minpeakloc < 0);

        if(minpeakloc < 0) {
            if (finished) {         /* deal with endcases where waveform fails to cross zero (twice) */
                if(crossed_zero_to_negative > 0)
                    pa[n++] = crossed_zero_to_negative;
                envcnt = n;
                break;
            } else {
                sprintf(errstr,"FAILED TO FIND ONE OF THE LOCAL MINIMA.\n");
                return(PROGRAM_ERROR);
            }
        }
        pa[n] = minpeakloc;
        n++;
        startsearch = max(pa[n] - k, 0);
        endsearch   = min(pa[n] + k,dz->insams[0]);
        if(startsearch >= dz->total_samps_read) {
            while(startsearch >= dz->total_samps_read) {
                last_total_samps_read = dz->total_samps_read;
                if((exit_status = read_samps(ibuf,dz))<0)
                    return(exit_status);
                if(last_total_samps_read >= dz->total_samps_read) {
                    envcnt = n;
                    break;
                }
            }
        }
        startsearch -= last_total_samps_read;
        endsearch   -= last_total_samps_read;
        while(startsearch < 0) {        /* very tiny windows may cause backtracking in file */
            last_total_samps_read -= dz->buflen;
            if((sndseekEx(dz->ifd[0],last_total_samps_read,0))<0) {
                sprintf(errstr,"seek error 3\n");
                return(SYSTEM_ERROR);
            }
            if((exit_status = read_samps(ibuf,dz))<0)
                return(exit_status);
            dz->total_samps_read = last_total_samps_read + dz->ssampsread;
            startsearch += dz->buflen;
            endsearch += dz->buflen;
        }
    }
    if((sndseekEx(dz->ifd[0],0,0))<0) {
        sprintf(errstr,"seek error 4\n");
        return(SYSTEM_ERROR);
    }
    dz->total_samps_read = 0;
    last_total_samps_read = 1;      /* Value 1 forces first seek and read */
    obufpos = 0;
    switch(dz->process) {
    case(GREV_EXTEND):
        gotstart = 0;
        j = 0;          /* DEFAULT START OF AREA TO PROCESS (Safety only) */
        k = envcnt;     /* DEFAULT END OF AREA TO PROCESS IF NONE FOUND */
        for(n=0;n<envcnt;n++) {
            if (!gotstart) {
                if(pa[n] >= dz->iparam[3]) {
                    j = n;
                    gotstart = 1;
                }
            }
            if(pa[n] > dz->iparam[4]) {
                k = n;
                break;
            }
        }
        if(j == k) {
            sprintf(errstr,"INSUFFICIENT PEAKS IN THE FILE AREA SPECIFIED.\n");
            return(GOAL_FAILED);
        }
        for(n=0,m=j; m < k; n++,m++)                                            /* REDUCE ENVELOPE TO FILE SECTION REQUIRED */
            pa[n] = pa[m];
        envcnt = n;

        indur = pa[envcnt-1] - pa[0];
        dz->iparam[2] += indur;                                                         /*      TOTAL DURATION OF GRIT SECTION */

        element_cnt = envcnt-1;                                                         /* ARRAYS FOR GRAIN PERMUTATION WITH NO REPETS */

        fprintf(stdout,"INFO: Number of grains found = %d\n",element_cnt);
        fflush(stdout);
        if(element_cnt <= 0) {
            sprintf(errstr,"Insufficient grains to proceed.\n");
            return(DATA_ERROR);
        }
        if((arr = (int *)malloc(element_cnt * sizeof(int)))==NULL) {
            sprintf(errstr,"Insufficient memory for permutation array 1.\n");
            return(MEMORY_ERROR);
        }
        if((perm = (int *)malloc(element_cnt * sizeof(int)))==NULL) {
            sprintf(errstr,"Insufficient memory for permutation array 2.\n");
            return(MEMORY_ERROR);
        }
        if((arr2 = (int *)malloc(element_cnt * sizeof(int)))==NULL) {
            sprintf(errstr,"Insufficient memory for permutation array 3.\n");
            return(MEMORY_ERROR);
        }
        for(n=0;n<element_cnt;n++)
            arr[n] = n;
        memset((char *)obuf,0,dz->buflen * sizeof(float));
        obufpos = 0;                                                                            /*      READ FILE BEFORE GRIT SECTION */
        ibufpos = 0;
        origstartbuf = 0;
        origsamspread = min(dz->buflen,dz->insams[0]);
        while(pa[0] >= dz->total_samps_read) {
            last_total_samps_read = dz->total_samps_read;
            if((exit_status = read_samps(ibuf,dz))<0)
                return(exit_status);
            origstartbuf = last_total_samps_read;
            origsamspread = dz->ssampsread;
            if(pa[0] >= dz->total_samps_read) {
                if((exit_status = write_samps(ibuf,dz->buflen,dz))<0)
                    return(exit_status);
            } else {
                obufpos = pa[0] - last_total_samps_read;
                memcpy((char *)obuf,(char *)ibuf,obufpos * sizeof(float));
                ibufpos = obufpos;
            }
        }
        expansion = 0;
        j = element_cnt;
        endval = -1;
        while(expansion < dz->iparam[2]) {                                              /*      EXTEND GRIT SECTION, SELECTING GRAINS AT RANDOM (no repets) */
            if(j == element_cnt) {
                do_repet_restricted_perm(arr,perm,element_cnt,&endval);
                for(n=0;n<element_cnt;n++)
                    arr2[n] = arr[perm[n]];
                j = 0;
            }
            k = arr2[j++];                          ;
            startsearch = pa[k];
            endsearch   = pa[k+1];
            if((exit_status = do_envgrain_addwrite(startsearch,endsearch,&last_total_samps_read,&obufpos,dz))<0)
                return(exit_status);
            expansion += endsearch - startsearch;
        }
        if((sndseekEx(dz->ifd[0],origstartbuf,0))<0) {          /*      READ FILE AFTER GRIT SECTION */
            sprintf(errstr,"seek error 5\n");
            return(SYSTEM_ERROR);
        }
        dz->total_samps_read = origstartbuf;
        if((exit_status = read_samps(ibuf,dz))<0)
            return(exit_status);
        n = ibufpos;
        while(n < origsamspread) {
            obuf[obufpos++] = ibuf[n++];
            if(obufpos >= dz->buflen) {
                if((exit_status = write_samps(obuf,dz->buflen,dz))<0)
                    return(exit_status);
                memset((char *)obuf,0,dz->buflen * sizeof(float));
                obufpos = 0;
            }
        }
        while(dz->total_samps_read < dz->insams[0]) {
            if((exit_status = read_samps(ibuf,dz))<0)
                return(exit_status);
            if(dz->ssampsread == 0)
                break;
            for(n = 0;n < dz->ssampsread;n++) {
                obuf[obufpos++] = ibuf[n];
                if(obufpos >= dz->buflen) {
                    if((exit_status = write_samps(obuf,dz->buflen,dz))<0)
                        return(exit_status);
                    memset((char *)obuf,0,dz->buflen * sizeof(float));
                    obufpos = 0;
                }
            }
        }
        break;
    }
    if(obufpos > 0) {
        if((exit_status = write_samps(obuf,obufpos,dz))<0)
            return(exit_status);
    }
    return(FINISHED);
}

/************************** DO_ENVGRAIN_ADDWRITE **********************/

int do_envgrain_addwrite(int startsearch,int endsearch,int *last_total_samps_read,int *obufpos,dataptr dz)
{
    int exit_status;
    int step, n, m;
    float *ibuf = dz->sampbuf[0], *obuf  = dz->sampbuf[1];
    if(*obufpos < 0) {
        sprintf(errstr,"GRAIN TOO LARGE TO BACKTRACK IN BUFFER.\n");
        return(GOAL_FAILED);
    }
    if(startsearch > dz->total_samps_read || startsearch < *last_total_samps_read) {
        step = (startsearch / dz->buflen) * dz->buflen;
        if((sndseekEx(dz->ifd[0],step,0))<0) {
            sprintf(errstr,"seek error 6\n");
            return(SYSTEM_ERROR);
        }
        *last_total_samps_read = step;
        if((exit_status = read_samps(ibuf,dz))<0)
            return(exit_status);
        dz->total_samps_read = *last_total_samps_read + dz->ssampsread;
    }
    startsearch -= *last_total_samps_read;
    endsearch   -= *last_total_samps_read;
    m = *obufpos;
    for(n=startsearch;n <endsearch;n++) {
        if(n >= dz->buflen) {
            *last_total_samps_read = dz->total_samps_read;
            if((exit_status = read_samps(ibuf,dz))<0)
                return(exit_status);
            n = 0;
            endsearch -= dz->buflen;
        }
        obuf[m++] = ibuf[n];
        if(m >= dz->buflen) {
            if((exit_status = write_samps(obuf,dz->buflen,dz))<0)
                return(exit_status);
            memset((char *)obuf,0,dz->buflen * sizeof(float));
            m -= dz->buflen;
        }
    }
    *obufpos = m;
    return(FINISHED);
}

/************************* SETUP_GREXTEND_APPLICATION *******************/

int setup_grextend_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
    switch(dz->process) {
    case(GREV_EXTEND):
        if((exit_status = set_param_data(ap,0   ,5,5,"ddddd"      ))<0)
            return(FAILED);
        if((exit_status = set_vflgs(ap,"",0,"","",0,0,""))<0)
            return(FAILED);
        break;
    }
    // set_legal_infile_structure -->
    dz->has_otherfile = FALSE;
    // assign_process_logic -->
    switch(dz->process) {
    case(GREV_EXTEND):
        dz->input_data_type = SNDFILES_ONLY;
        break;
    }
    dz->process_type        = UNEQUAL_SNDFILE;
    dz->outfiletype         = SNDFILE_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 to parse input file %s\n",cmdline[0]);
            return(PROGRAM_ERROR);
        } else if(infile_info->filetype != SNDFILE)  {
            sprintf(errstr,"File %s is not of correct type\n",cmdline[0]);
            return(DATA_ERROR);
        } else if(infile_info->channels != 1)  {
            sprintf(errstr,"File %s is not of correct type (must be mono)\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);
    }
    return(FINISHED);
}

/************************* SETUP_GREXTEND_PARAM_RANGES_AND_DEFAULTS *******************/

int setup_grextend_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()
    switch(dz->process) {
    case(GREV_EXTEND):
        ap->lo[GREV_WSIZE]                        = (8.0/dz->infile->srate) * SECS_TO_MS;
        ap->hi[GREV_WSIZE]                        = (dz->duration/3.0) * SECS_TO_MS;
        ap->default_val[GREV_WSIZE]       = 5;
        ap->lo[GREV_TROFRAC]              = FLTERR;
        ap->hi[GREV_TROFRAC]              = 1.0 - FLTERR;
        ap->default_val[GREV_TROFRAC] = .2;
        ap->lo[2]                       = FLTERR;
        ap->hi[2]                       = 3600;
        ap->default_val[2]  = 1.0;
        ap->lo[3]                       = 0.0;
        ap->hi[3]                       = dz->duration;
        ap->default_val[3]  = 0.0;
        ap->lo[4]                       = 0.0;
        ap->hi[4]                       = dz->duration;
        ap->default_val[4]  = dz->duration;
        break;
    }
    if(!sloom)
        put_default_vals_in_all_params(dz);
    return(FINISHED);
}

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

int handle_the_outfile(int *cmdlinecnt,char ***cmdline,dataptr dz)
{
    int exit_status;
    char *filename = (*cmdline)[0];
    if(filename[0]=='-' && filename[1]=='f') {
        dz->floatsam_output = 1;
        dz->true_outfile_stype = SAMP_FLOAT;
        filename+= 2;
    }
    if(!sloom) {
        if(file_has_invalid_startchar(filename) || value_is_numeric(filename)) {
            sprintf(errstr,"Outfile name %s has invalid start character(s) or looks too much like a number.\n",filename);
            return(DATA_ERROR);
        }
    }
    strcpy(dz->outfilename,filename);
    if((exit_status = create_sized_outfile(filename,dz))<0)
        return(exit_status);
    (*cmdline)++;
    (*cmdlinecnt)--;
    return(FINISHED);
}

/**************************** CHECK_GREXTEND_PARAM_VALIDITY_AND_CONSISTENCY *****************************/

int check_grextend_param_validity_and_consistency(dataptr dz)
{
    double temp;
    switch(dz->process) {
    case(GREV_EXTEND):
        if(flteq(dz->param[4],dz->param[3])) {
            sprintf(errstr,"Incompatible start and end times for grain segment.\n");
            return(DATA_ERROR);
        }
        if(dz->param[4] < dz->param[3]) {
            temp = dz->param[4];
            dz->param[4] = dz->param[3];
            dz->param[3] = temp;
        }
        dz->iparam[2] = (int)round(dz->param[2] * dz->infile->srate);
        dz->iparam[3] = (int)round(dz->param[3] * dz->infile->srate);
        dz->iparam[4] = (int)round(dz->param[4] * dz->infile->srate);
        dz->iparam[GREV_SAMP_WSIZE] =  (int)round(dz->param[GREV_WSIZE] * MS_TO_SECS * (double)dz->infile->srate);
        dz->param[GREV_TROFRAC] /= 2.0; /* include averaging factor here */
        dz->tempsize = dz->insams[0] + dz->iparam[2];
        break;
    }
    return(FINISHED);
}

/*************************** CREATE_GREXTEND_SNDBUFS **************************/

int create_grextend_sndbufs(dataptr dz)
{
    int n;
    size_t bigbufsize;
    if(dz->sbufptr == 0 || dz->sampbuf==0) {
        sprintf(errstr,"buffer pointers not allocated: create_sndbufs()\n");
        return(PROGRAM_ERROR);
    }
    bigbufsize = (size_t)Malloc(-1);
    bigbufsize /= dz->bufcnt;
    if(bigbufsize <=0)
        bigbufsize  =  F_SECSIZE * sizeof(float);                 /* RWD keep ths for now */
    dz->buflen = (int)(bigbufsize / sizeof(float));
    /*RWD also cover n-channels usage */
    bigbufsize = dz->buflen * sizeof(float);
    if((dz->bigbuf = (float *)malloc(bigbufsize  * dz->bufcnt)) == NULL) {
        sprintf(errstr,"INSUFFICIENT MEMORY to create sound buffers.\n");
        return(PROGRAM_ERROR);
    }
    for(n=0;n<dz->bufcnt;n++)
        dz->sbufptr[n] = dz->sampbuf[n] = dz->bigbuf + (dz->buflen * n);
    dz->sampbuf[n] = dz->bigbuf + (dz->buflen * n);
    return(FINISHED);
}

/****************************** DO_REPET_RESTRICTED_PERM ****************************/

void do_repet_restricted_perm(int *arr, int *perm, int arrsiz, int *endval)
{
    int n, t;
    int done = 0;
    while(!done) {
        for(n=0;n<arrsiz;n++) {
            t = (int)(drand48() * (double)(n+1)); /* TRUNCATE */
            if(t==n)
                hhprefix(n,arrsiz,perm);
            else
                hhinsert(n,t,arrsiz,perm);
        }
        if(arr[perm[0]] != *endval) {   /* if this is val (repeated) at end of last perm */
            done = 1;                                       /* if this is not val at end of last perm */
        }
    }
    *endval = arr[perm[arrsiz-1]];
}

/***************************** HHINSERT **********************************
 *
 * Insert the value m AFTER the T-th element in perm[].
 */

void hhinsert(int m,int t,int setlen,int *perm)
{
    hhshuflup(t+1,setlen,perm);
    perm[t+1] = m;
}

/***************************** HHPREFIX ************************************
 *
 * Insert the value m at start of the permutation perm[].
 */

void hhprefix(int m,int setlen,int *perm)
{
    hhshuflup(0,setlen,perm);
    perm[0] = m;
}

/****************************** HHSHUFLUP ***********************************
 *
 * move set members in perm[] upwards, starting from element k.
 */
void hhshuflup(int k,int setlen,int *perm)
{
    int n, *i;
    int z = setlen - 1;
    i = (perm+z);
    for(n = z;n > k;n--) {
        *i = *(i-1);
        i--;
    }
}

/**************************************************/
/* GENERAL FUNCTIONS, REPLACING CDP LIB FUNCTIONS */
/**************************************************/

/****************************** 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;
    //THERE ARE NO INPUTFILE brktables USED IN THIS PROCESS
    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
    switch(dz->process) {
    case(PSOW_INTERLEAVE):
    case(PSOW_REPLACE):
        dz->infilecnt = 2;
        break;
    default:
        dz->infilecnt = 1;
        break;
    }
    if((exit_status = setup_internal_arrays_and_array_pointers(dz))<0)
        return(exit_status);
    //establish_bufptrs_and_extra_buffers():
    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);
}

/***************************** 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_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);
}

/********************************* 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_grextend_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);
}

/****************************** SET_LEGAL_INTERNALPARAM_STRUCTURE *********************************/

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

/************************* SETUP_INTERNAL_ARRAYS_AND_ARRAY_POINTERS *******************/

int setup_internal_arrays_and_array_pointers(dataptr dz)
{
    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 establish_bufptrs_and_extra_buffers(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_process_no(char *prog_identifier_from_cmdline,dataptr dz)
{
    return(FINISHED);
}

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