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UDP Analog Audio Output;

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lwvmobile
2024-02-21 10:29:06 -05:00
parent 42fee3bd3e
commit 65fdd7c5b4
6 changed files with 96 additions and 12 deletions
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57
src/dsd_rigctl.c
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@@ -31,6 +31,7 @@ void error(char *msg) {
}
struct sockaddr_in address;
struct sockaddr_in addressA;
//
// Connect
@@ -316,6 +317,23 @@ int udp_socket_blaster(dsd_opts * opts, dsd_state * state, size_t nsam, void * d
if (err < nsam) fprintf (stderr, "\n UDP Underflow %ld", err); //I'm not even sure if this is possible
}
//Analog UDP port on +2 of normal open socket
int udp_socket_blasterA(dsd_opts * opts, dsd_state * state, size_t nsam, void * data)
{
UNUSED(state);
size_t err = 0;
//listen with:
//short 48k/1
//socat stdio udp-listen:23456 | play --buffer 960*2 -q -b 16 -r 48000 -c1 -t s16 -
//send audio or data to socket
err = sendto(opts->udp_sockfdA, data, nsam, 0, (const struct sockaddr * ) & addressA, sizeof(struct sockaddr_in));
if (err < 0) fprintf (stderr, "\n UDP SENDTO ERR %ld", err); //return value here is size_t number of characters sent, or -1 for failure
if (err < nsam) fprintf (stderr, "\n UDP Underflow %ld", err); //I'm not even sure if this is possible
}
int udp_socket_connect(dsd_opts * opts, dsd_state * state)
{
UNUSED(state);
@@ -354,3 +372,42 @@ int udp_socket_connect(dsd_opts * opts, dsd_state * state)
}
}
int udp_socket_connectA(dsd_opts * opts, dsd_state * state)
{
UNUSED(state);
long int err = 0;
err = opts->udp_sockfdA = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (err < 0)
{
fprintf (stderr, " UDP Socket Error %ld\n", err);
return (err);
}
// Don't think this is needed, but doesn't seem to hurt to keep it here either
int broadcastEnable = 1;
err = setsockopt(opts->udp_sockfdA, SOL_SOCKET, SO_BROADCAST, &broadcastEnable, sizeof(broadcastEnable));
if (err < 0)
{
fprintf (stderr, " UDP Broadcast Set Error %ld\n", err);
return (err);
}
memset((char * ) & addressA, 0, sizeof(addressA));
addressA.sin_family = AF_INET;
err = addressA.sin_addr.s_addr = inet_addr(opts->udp_hostname);
if (err < 0) //error in this context reports back 32-bit inet_addr reversed order byte pairs
{
fprintf (stderr, " UDP inet_addr Error %ld\n", err);
return (err);
}
addressA.sin_port = htons(opts->udp_portno+2); //plus 2 to current port assignment for the analog port value
if (err < 0)
{
fprintf (stderr, " UDP htons Error %ld\n", err);
return (err);
}
}