Json 파일을 자막 파일인 srt로 변경

Json 파일을 자막 파일인 srt로 변경하는 프로그램이다.

 

구체적으로 설명하면, 아래는 음성을 텍스트로 변화하는 Speechmatics에서제공하는 Json 파일의 일부이다.

 

굵은 폰트가 자막와 그 자막이 나오는 시간이다.

 

{

      "duration": "0.09",

      "confidence": "0.960",

      "name": "the",

      "time": "12.93"

    },

    {

      "duration": "0.24",

      "confidence": "0.910",

      "name": "two",

      "time": "13.02"

    },

    {

      "duration": "0.48",

      "confidence": "1.000",

      "name": "rams",

      "time": "13.26"

    },

    {

      "duration": "0.12",

      "confidence": "1.000",

      "name": "and",

      "time": "13.74"

    },

    {

      "duration": "0.06",

      "confidence": "0.990",

      "name": "a",

      "time": "13.86"

    },

 

 

 

아래와 같이 str 파일로 바꾸어야 한다.

 

12

12.93 --> 13.86

the two rams and a

 

 

/* This program converts a json file from Speechmatics to srt subtitle file. */
/* Usage is as follows. You need to type the below in the windows command line.

            json2srt num < example.json > output.srt

               where num is the maximum numbers of words you can have in a line.
               this number is optional and may not be entered. Then the number 10 will be
               used as deafult.
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char buf[128];  /* read a line to buf */
char tmp[128]; /* it could be time or word. see the program code below. */
char ans[254];  /* accumulate words to ans */
char old[254];  /* save ans to old */
char old2[64];  /* save last(time) to old2 */

char first[64];   /* first time */
char last[64];   /* last time   */

int cnt; /* counter for words */
int knt; /* It's a counter that allows you to know how many lines you are printing. */

#define YES 1
#define NO 0

int usage( ) {

    puts("Usage is as follows.\n");
    puts("json2srt num < example.json > output.srt");
    puts("           where num is the maximum numbers of words you can have in a line.");
    puts("           this number is optional and may not be entered. Then the number 10 will be");
    puts("           used as deafult.");
    puts("");

    return 0;
}

int is_int(char str[ ] ) {
    char *p=str;
    
    for( ; p && *p ;  p++ )
         if( *p > '9' || *p < '0' ) {
            return NO;
         } 
    
    return YES;
}

int trim(char str[ ] ) {
    char *p=str;
    char *t=NULL;
    
    for( ; *p == ' ';   ) p++; /* left trim */
    strcpy(str, p);
 
    t= str + strlen(str);      /* right trim */
    for( ; *--t == ' ' ; );
    *( t + 1 ) = 0;

    return 0;    
}    

int time_string( char str[ ] ) {
    /* example input argument is like "5334.72" */
    
    char str2[128]; /* variable to hold the answer */
  
    float numf = 0;
    int   numi = 0;
    int hh, mm, ss, deci;
  
    numf = atof(str);
    numi = numf;
    hh = numi / 3600;
    mm = ( numi - hh * 3600 ) / 60;
    ss = ( numi - hh * 3600 - mm * 60);
    deci = (numf - numi) * 100;
  
    sprintf(str2, "%02d:%02d:%02d.%02d0", hh, mm, ss, deci);

    strcpy(str, str2); /* modifies passed argument. str will be passed to caller function. */

    return 0;
}

int print(int opt) {
    char first2[64];
    char last2[64];

    /* opt == 0 means when you don't have to try one more word */
    /* opt == 1 means when you have to try one more word */

    if(opt == 0) { 
      strcpy(ans, old);
      strcpy(last, old2);
    }

    trim(ans);
    if( strlen(ans) < 1 ) return 0;
    
    printf("%d\n", ++knt);
    strcpy(first2, first); time_string(first2); /* change to time string */
    strcpy(last2, last); time_string(last2);  /* change to time string */

    printf("%s --> %s\n", first2, last2);
    printf("%s\n\n", ans);

    strcpy(ans, "");
    cnt = 0;

    if(opt == 0 ) {
      strcpy(ans, tmp);
      strcpy(first, last);
      cnt = 1;
    }
 
    return 0;
}

int words_per_line;

int main(int argc, char *argv[ ] ) {

    char *p = NULL;

    ans[0]=0; knt  = 0; cnt=0; 
   
    if( argc > 2 ) {
       puts("Too many argments");
       usage( );
       return 0;
    }

    if( argc > 1 ) {
       if( is_int(argv[1]) == NO ) {
          puts("Err1. Argment must be an integer that is greater than zero."); puts("");
          usage( );
          return 0;
       } else {
          words_per_line = atoi(argv[1]);

          if( words_per_line == 0 ) {
            puts("Err2. Argment must be an integer that is greater than zero."); puts("");
            usage( );
            return 0;
         }
       }
    }
    else
        words_per_line = 10;

    /* Do nothing until you find the postion string 'word' in the file. */
    while( fgets(buf, 128-1, stdin) ) {
            if( strstr(buf, "words") ) break;
    }

    while( fgets(buf, 128-1, stdin) ) {
            
            buf[ strcspn(buf, "\n") ] =0; /* removes new line character */

            if( (p= strstr(buf, "time")) ) {
                strcpy(old2, last);
                strcpy(last, p+8);
                last[ strcspn(last, "\"") ] =0;
                if(cnt == 0) { strcpy(first, last); }
            } else
            if( (p= strstr(buf, "name")) ) {
                cnt++;
                strcpy(tmp, p+8);
                tmp[ strcspn(tmp, "\"") ] =0;
                strcat(tmp, " ");

                strcpy(old, ans); /* save ans to old before assigning new value. */
                if( strcmp(tmp, ". ") == 0 ) ans[ strlen(ans) - 1 ] =0;  
                strcat(ans, tmp);
                
               if( cnt == words_per_line + 1) { /* try one more time*/
                  if( strcmp(tmp, ". ") == 0 ) {
                     print(1);
                  } else {
                     print(0);
                  } /* if */
               }/* if */
            }/* if */
    }/* while */

    print(1);

    return 0;
}

 

자세한 사용방법은 추후에 올리기로 한다.