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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <string.h>
/* plugin for musepack encoder mppenc version 1.16 */
#define MUSE_OUTPUT_BUF_LENGTH 2048
#define PRINTOUT_INTERVAL 1
/* mppenc updates screen at 1 cpu usage second, so use longer
PRINTOUT_INTERVAL to help prevent reading partial lines */
int
mppenc_read_stat (float *current)
{
char temp[MUSE_OUTPUT_BUF_LENGTH];
char string[MUSE_OUTPUT_BUF_LENGTH];
int bytes_read;
int bytes_left;
char *kbps = "kbps";
char *string_ptr;
char *temp_ptr;
temp_ptr = temp;
/* Grab new output from 'mppenc' */
bytes_read = read (0, (void *) temp, sizeof (temp));
if (bytes_read) {
temp[bytes_read]='\0';
string_ptr = strstr (temp_ptr, kbps);
bytes_left = string_ptr - temp_ptr;
if ( (bytes_left < 20) && (bytes_left > 8) ) { /*discard the long initial header or fragments*/
if ( temp[0] == '\015' ) {
temp_ptr = temp;
temp_ptr++;
strcpy( string , temp_ptr );
}
else {
strcpy( string , temp);
}
sscanf (string, "%f", current); /*pickup the first number in the string = % done */
if (!(*current > 100 || *current <= 0 )) /*just in case bad value */
return (0);
}
}
return (-1);
}
int
main (int argc, char **argv)
{
float current = 0.0;
printf ("[P 0.00]\n");
while (1) {
if (mppenc_read_stat (¤t) == 0)
/* print message in form [P 0.xxxxx]\n */
printf ("[P %f]\n", current / 100.0);
usleep (PRINTOUT_INTERVAL * 1000000);
}
}
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