Hi,
I was previously using .agi files to dial a number and playback some voice.
Now I am trying to do that in C .
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/select.h>
#include <asterisk/compat.h>
#define AUDIO_FILENO (STDERR_FILENO + 1)
static int read_environment(void)
{
char buf[256];
char val;
/ Read environment /
for(;
{
fgets(buf, sizeof(buf), stdin);
if (feof(stdin))
return -1;
buf[strlen(buf) - 1] = ‘\0’;
/ Check for end of environment */
if (!strlen(buf))
return 0;
val = strchr(buf, ‘:’);
if (!val) {
fprintf(stderr, “Invalid environment: ‘%s’\n”, buf);
return -1;
}
val = ‘\0’;
val++;
val++;
/ Skip space */
fprintf(stderr, “Environment: ‘%s’ is ‘%s’\n”, buf, val);
/* Load into normal environment */
setenv(buf, val, 1);
}
/* Never reached */
return 0;
}
static char wait_result(void)
{
fd_set fds;
int res;
int bytes = 0;
static char astresp[256];
char audiobuf[4096];
for (; {
FD_ZERO(&fds);
FD_SET(STDIN_FILENO, &fds);
FD_SET(AUDIO_FILENO, &fds);
/ Wait for some sort of I/O /
res = select(AUDIO_FILENO + 1, &fds, NULL, NULL, NULL);
if (res < 0) {
fprintf(stderr, “Error in select: %s\n”, strerror(errno));
return NULL;
}
if (FD_ISSET(STDIN_FILENO, &fds)) {
fgets(astresp, sizeof(astresp), stdin);
if (feof(stdin)) {
fprintf(stderr, “Got hungup on apparently\n”);
return NULL;
}
astresp[strlen(astresp) - 1] = ‘\0’;
fprintf(stderr, “Ooh, got a response from Asterisk: ‘%s’\n”, astresp);
return astresp;
}
if (FD_ISSET(AUDIO_FILENO, &fds)) {
res = read(AUDIO_FILENO, audiobuf, sizeof(audiobuf));
if (res > 0) {
/ XXX Process the audio with sphinx here XXX /
#if 0
fprintf(stderr, “Got %d/%d bytes of audio\n”, res, bytes);
#endif
bytes += res;
/ Prentend we detected some audio after 3 seconds */
if (bytes > 16000 * 3) {
return “Sample Message”;
bytes = 0;
}
}
}
}
}
static char *run_command(char *command)
{
fprintf(stdout, “%s\n”, command);
return wait_result();
}
static int run_script(void)
{
char res;
res = run_command("STREAM FILE demo-enterkeywords 0123456789#");
if (!res) {
fprintf(stderr, “Failed to execute command\n”);
return -1;
}
fprintf(stderr, “1. Result is ‘%s’\n”, res);
res = run_command(“STREAM FILE demo-nomatch 0123456789*#”);
if (!res) {
fprintf(stderr, “Failed to execute command\n”);
return -1;
}
fprintf(stderr, “2. Result is ‘%s’\n”, res);
res = run_command(“SAY NUMBER 23452345 0123456789*#”);
if (!res) {
fprintf(stderr, “Failed to execute command\n”);
return -1;
}
fprintf(stderr, “3. Result is ‘%s’\n”, res);
res = run_command(“GET DATA demo-enterkeywords”);
if (!res) {
fprintf(stderr, “Failed to execute command\n”);
return -1;
}
fprintf(stderr, “4. Result is ‘%s’\n”, res);
res = run_command(“STREAM FILE auth-thankyou “””);
if (!res) {
fprintf(stderr, “Failed to execute command\n”);
return -1;
}
fprintf(stderr, “5. Result is ‘%s’\n”, res);
return 0;
}
int main(int argc, char *argv[])
{
char tmp;
int ver = 0;
int subver = 0;
/ Setup stdin/stdout for line buffering */
setlinebuf(stdin);
setlinebuf(stdout);
if (read_environment()) {
fprintf(stderr, “Failed to read environment: %s\n”, strerror(errno));
exit(1);
}
tmp = getenv(“agi_enhanced”);
if (tmp) {
if (sscanf(tmp, “%d.%d”, &ver, &subver) != 2)
ver = 0;
}
if (ver < 1) {
fprintf(stderr, “No enhanced AGI services available. Use EAGI, not AGI\n”);
exit(1);
}
if (run_script())
return -1;
exit(0);
}
I took a small playback c file eagi_test.c, which is compiling well and can able to dial and playback voice. I need to make some modification in that for DTMF changing the voice menu when key pressed what are the thing I have to do?..
One more thing I took a sample make file app_dial.c
which I tried to compile it is n’t compiling and giving some error :
app_dial.c:1824: error: AST_MODULE' undeclared here (not in a function) app_dial.c:1824: error: initializer element is not constant app_dial.c:1824: error: (near initialization for__mod_info.name’)
If anybody knows about how to make changes for DTMF in the eagi_test.c it will be helpfull…