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/*
* getlength - a small tool to get the length of a VDR recording by the size
* of the file index.vdr
*
* (c) by Martin Prochnow
* Distributed under the terms of the GPL v2.0 (see COPYING at the root dir of
* this archive).
*
* Compile with: gcc getlength.c -o getlength
*
* Usage: 'getlength' if index.vdr is in the current working directory or
'getlength /PATH/TO/RECDIR/' else
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
int main(int argc,char **argv)
{
char *filename;
int hasindex,length;
struct stat status;
FILE *out;
switch(argc)
{
case 1: asprintf(&filename,"./index.vdr");break;
case 2: asprintf(&filename,"%s/index.vdr",argv[1]);break;
default: fprintf(stderr,"Usage:\ngetlength [PATH/TO/index.vdr]\n");exit(-1);
}
hasindex=!access(filename,R_OK);
if(hasindex)
{
stat(filename,&status);
length=status.st_size/12000; // calculate length if the recording by the size of index.vdr
free(filename);
switch(argc)
{
case 1: asprintf(&filename,"./length.vdr");break;
case 2: asprintf(&filename,"%s/length.vdr",argv[1]);break;
}
if((out=fopen(filename,"w"))!=NULL)
{
fprintf(out,"%d\n",length);
fclose(out);
}
else
{
perror("Error while open length.vdr");
free(filename);
exit(-1);
}
}
else
{
perror("Error while accessing index.vdr");
free(filename);
exit(-1);
}
free(filename);
return 0;
}
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