squeeze.c

来自「speech signal process tools」· C语言 代码 · 共 160 行

/* 
  This material contains proprietary software of Entropic Processing, Inc.   
  Any reproduction, distribution, or publication without the the prior	   
  written permission of Entropic Processing, Inc. is strictly prohibited.
  Any public distribution of copies of this work authorized in writing by
  Entropic Processing, Inc. must bear the notice			
 								
               "Copyright 1986 Entropic Processing, Inc."
 				
  This program compacts an existing ANA file by finding the actual
  maximum number of pulses, raw powers, and lpc powers and creates 
  a new file with records just large enough to hold these.   
  
   Man page by John Shore, Program by Alan Parker
 */

#ifdef SCCS
static char *sccs_id = "@(#)squeeze.c	1.2	6/10/86 EPI";
#endif

#include <stdio.h>
#include <sps/sps.h>
#include <sps/ana.h>
#include <sys/types.h>
#include <sys/stat.h>

#define SYNTAX USAGE ("squeeze infile [outfile]")
#define MAX(a,b) (a > b) ? a : b;

char  *mktemp(), *get_cmd_line();

main (argc, argv)
int     argc;
char  **argv;
{
    FILE *in = stdin, *out = stdout, *tstrm;
    char *infile = "<stdin>", *outfile = "<stdout>";
    char *template = "/usr/tmp/sqXXXXXX";
    struct header  *ih, *oh;
    int onefile=0,maxpulses=0,maxraw=0,maxlpc=0,i=0;
    int order=0, stdio=1;
    long orig_size=0, new_size=0;
    struct ana_data *in_rec, *out_rec;
    struct stat sbuf;
    void stat_err();
    
    if(argc < 2) SYNTAX;
    if(strcmp(argv[1], "-") != 0) {
  	infile = argv[1];
	TRYOPEN(argv[0],infile,"r",in);
	if(stat(argv[1],&sbuf) != 0) stat_err(argv[0],argv[1]);
	orig_size = sbuf.st_size;
    }
    if(argc == 2) {
	if(in == stdin) {
		fprintf(stderr,"%s: Cannot update stdin\n",argv[0]);
		exit(1);
	}
	onefile++;
  	outfile = infile;
    }
    else {
      	if (strcmp(argv[2], "-") != 0) {
	outfile = argv[2];
	TRYOPEN(argv[0],outfile,"w",out);
	stdio=0;
        }
    }
    if((tstrm = fopen(mktemp(template),"w")) == NULL)
	CANTOPEN(argv[0],template);
    if (!(ih = read_header(in))) NOTSPS(argv[0],infile);
    if (ih->common.type != FT_ANA) {
	(void) fprintf(stderr,"%s: %s is not an ANA file.\n",
		argv[0],infile);
	exit(1);
    }
    order = MAX(ih->hd.ana->order_vcd,ih->hd.ana->order_unvcd);
    if(onefile) (void) write_header(ih,tstrm);
/* 
   Process through all records in the ANA file and get the maximum
   value for maxraw, maxlpc, and maxpulses
 */
    in_rec = allo_ana_rec(ih);
    while(get_ana_rec(in_rec,ih,in) != EOF) {
	for(i=0;i<ih->hd.ana->maxpulses && in_rec->p_pulse_len[i] != 0;i++) ;
	maxpulses = MAX(maxpulses,i);
	for(i=0;i<ih->hd.ana->maxraw && in_rec->raw_power[i] > 0;i++) ;
	maxraw = MAX(maxraw,i);
	for(i=0;i<ih->hd.ana->maxlpc && in_rec->lpc_power[i] > 0;i++) ;
	maxlpc = MAX(maxlpc,i);
	if(onefile) (void) put_ana_rec(in_rec,ih,tstrm);
    }
    fprintf(stderr,"%s: Original maxpulses: %d, maxraw: %d, maxlpc: %d\n",
	argv[0],ih->hd.ana->maxpulses,ih->hd.ana->maxraw,ih->hd.ana->maxlpc);
    fprintf(stderr,"%s: Squeezed maxpulses: %d, maxraw: %d, maxlpc: %d\n",
	argv[0],maxpulses,maxraw,maxlpc);
    if(!onefile) {
    	rewind(in);
    }
    else {
	fclose(tstrm);
        if((in = fopen(template,"r")) == NULL)
	  CANTOPEN(argv[0],template);
        if((out = fopen(argv[1],"w")) == NULL)
	  CANTOPEN(argv[0],argv[1]);
    }	
    if (!(ih = read_header(in))) NOTSPS(argv[0],infile);
    oh = copy_header(ih);
    oh->hd.ana->maxpulses = maxpulses;
    oh->hd.ana->maxraw = maxraw;
    oh->hd.ana->maxlpc = maxlpc;
    strcpy(oh->common.prog,ih->common.prog);
    strcpy(oh->common.vers,ih->common.vers);
    strcpy(oh->common.progdate,ih->common.progdate);
    for(i=0;i<ih->variable.nnames;i++)
	oh->variable.source[i]=ih->variable.source[i];
    for(i=0;i<ih->variable.nheads;i++)
	oh->variable.srchead[i]=ih->variable.srchead[i];
    out_rec = allo_ana_rec(oh);
    (void) add_comment(oh,get_cmd_line(argc,argv));
    (void) write_header(oh,out);
    while(get_ana_rec(in_rec,ih,in) != EOF) {
	for(i=0;i<oh->hd.ana->maxpulses;i++) 
		out_rec->p_pulse_len[i] = in_rec->p_pulse_len[i];
	for(i=0;i<oh->hd.ana->maxraw;i++) 
		out_rec->raw_power[i] = in_rec->raw_power[i];
	for(i=0;i<oh->hd.ana->maxlpc;i++) 
		out_rec->lpc_power[i] = in_rec->lpc_power[i];
	for(i=0;i<order;i++)
		out_rec->ref_coeff[i] = in_rec->ref_coeff[i];
	out_rec->frame_len = in_rec->frame_len;
	out_rec->tag = in_rec->tag;
	(void) put_ana_rec(out_rec,oh,out);
    }
    (void) fclose(out);
    if(onefile) {
	unlink(template);
	if(stat(argv[1],&sbuf) != 0) stat_err(argv[0],argv[1]);
	new_size = sbuf.st_size;
    }
    else {
	if(stdio == 0) {
	  if(stat(argv[2],&sbuf) != 0) stat_err(argv[0],argv[2]);
	  new_size = sbuf.st_size;
	}
    }
    if(orig_size != 0 && new_size != 0) 
	fprintf(stderr,"%s: Original size: %ld, New size: %ld\n",
	 argv[0],orig_size,new_size);
	
}

void
stat_err(name,file)
char *name,*file;
{
   fprintf(stderr,"%s: Error can't stat %s\n",name,file);
   exit(1);
}