resample.c

   1 /* resample.c -- resample audio file (just raw) */
   2
   3 /* hackbard@hackdaworld.dyndns.org */
   4
   5 #include <stdio.h>
   6 #include <sys/types.h>
   7 #include <sys/stat.h>
   8 #include <fcntl.h>
   9 #include <unistd.h>
  10
  11 int usage() {
  12         puts("usage: resample <src> <dst>");
  13         return 1;
  14 }
  15
  16 int main(int argc,char **argv) {
  17         int src_fd,dst_fd;
  18         int i;
  19         unsigned char buf[2];
  20
  21
  22         if(argc!=3) {
  23                 usage();
  24                 return -1;
  25         }
  26
  27         src_fd=open(argv[1],O_RDONLY);
  28         if(src_fd<0) {
  29                 printf("can't open %s\n",argv[1]);
  30                 return -1;
  31         }
  32
  33         dst_fd=open(argv[2],O_WRONLY|O_CREAT);
  34         if(dst_fd<0) {
  35                 printf("can't open %s\n",argv[2]);
  36                 return -1;
  37         }
  38
  39         i=1;
  40         while(i) {
  41                 i=read(src_fd,buf,2);
  42                 write(dst_fd,buf,2);
  43                 write(dst_fd,buf,2);
  44         }
  45
  46         return 1;
  47 }