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#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/soundcard.h>
#include <sys/wait.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <libgen.h>
#define espeakpath "/mnt/sdcard/navit/bin/espeak"
#define IBUFFERLEN 1024
#define MAXARGC 30
int main(int argc, char *argv[],char *envp[]) {
int pipefd[2];
pid_t cpid;
char buf;
int co,wp,l,fh;
short bufi[IBUFFERLEN],bufo[IBUFFERLEN*2];
int rate=22050;
char *newargv[MAXARGC+2];
for(co=0; co<argc; co++) {
if(co>=MAXARGC)break;
newargv[co]=argv[co];
}
newargv[co++]="--stdout";
newargv[co++]=NULL;
if (pipe(pipefd) == -1) {
perror("pipe");
exit(EXIT_FAILURE);
}
if(setpriority(PRIO_PROCESS,0,-10))
perror ("setpriority");
cpid = fork();
if (cpid == -1) {
perror("fork");
exit(EXIT_FAILURE);
}
if (cpid == 0) {
/* Child writes to pipe */
close(pipefd[0]); /* Close unused read end */
dup2(pipefd[1],1);
execve(espeakpath,newargv,envp);
perror(espeakpath);
close(pipefd[1]); /* Reader will see EOF */
wait(NULL); /* Wait for child */
exit(EXIT_SUCCESS);
} else { /* Parent read from pipe */
close(pipefd[1]); /* Close unused write end */
l=read(pipefd[0],bufi,64);
if(memcmp(bufi,"RIFF",4)) {
while(l>0) {
write(1,bufi,l);
l=read(pipefd[0],bufi,IBUFFERLEN);
}
exit(EXIT_SUCCESS);
}
l=read(pipefd[0],bufi,IBUFFERLEN);
fh=open("/dev/dsp",O_WRONLY);
if(fh<0) {
perror("open /dev/dsp");
exit(EXIT_FAILURE);
}
ioctl(fh, SNDCTL_DSP_SPEED, &rate);
ioctl(fh, SNDCTL_DSP_SYNC, 0);
while(l) {
for(co=0,wp=0; (co<IBUFFERLEN)&&(co<l); co++) {
bufo[wp++]=bufi[co]; /* mono->stereo */
bufo[wp++]=bufi[co];
}
write (fh,bufo,wp);
l=read(pipefd[0],bufi,IBUFFERLEN);
}
ioctl(fh, SNDCTL_DSP_SYNC, 0);
close(pipefd[0]);
exit(EXIT_SUCCESS);
}
}
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