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* add RTP/SAP/SDP reciever module

Browse source 
* use server cookie as RTP SSRC
* enable SVN keywords
* add new option "loop" for RTP sender module


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@716 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-04-16 00:16:53 +00:00
parent 1fec416db7
commit f1ddf05236
9 changed files with 1012 additions and 53 deletions
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70
src/modules/rtp/module-rtp-monitor.c
View file

@ -1,3 +1,4 @@
/* $Id */
/***
This file is part of polypaudio.
@ -49,16 +50,17 @@
#include "sap.h"
PA_MODULE_AUTHOR("Lennart Poettering")
PA_MODULE_DESCRIPTION("Read data from source and send it to the network via RTP")
PA_MODULE_DESCRIPTION("Read data from source and send it to the network via RTP/SAP/SDP")
PA_MODULE_VERSION(PACKAGE_VERSION)
PA_MODULE_USAGE(
"source=<name for the source> "
"source=<name of the source> "
"format=<sample format> "
"channels=<number of channels> "
"rate=<sample rate> "
"destinaton=<destination IP address> "
"port=<port number> "
"mtu=<maximum transfer unit> "
"loop=<loopback to local host?>"
)
#define DEFAULT_PORT 5004
@ -75,6 +77,7 @@ static const char* const valid_modargs[] = {
"rate",
"destination",
"port",
"loop",
NULL
};
@ -125,7 +128,7 @@ static pa_usec_t source_output_get_latency (pa_source_output *o) {
return pa_bytes_to_usec(pa_memblockq_get_length(u->memblockq), &o->sample_spec);
}
static void sap_event(pa_mainloop_api *m, pa_time_event *t, const struct timeval *tv, void *userdata) {
static void sap_event_cb(pa_mainloop_api *m, pa_time_event *t, const struct timeval *tv, void *userdata) {
struct userdata *u = userdata;
struct timeval next;
@ -159,6 +162,8 @@ int pa__init(pa_core *c, pa_module*m) {
int r;
socklen_t k;
struct timeval tv;
char hn[128], *n;
int loop = 0;
assert(c);
assert(m);
@ -173,6 +178,11 @@ int pa__init(pa_core *c, pa_module*m) {
goto fail;
}
if (pa_modargs_get_value_boolean(ma, "loop", &loop) < 0) {
pa_log(__FILE__": failed to parse \"loop\" parameter.");
goto fail;
}
ss = s->sample_spec;
pa_rtp_sample_spec_fixup(&ss);
cm = s->channel_map;
@ -189,7 +199,7 @@ int pa__init(pa_core *c, pa_module*m) {
if (ss.channels != cm.channels)
pa_channel_map_init_auto(&cm, ss.channels);
payload = pa_rtp_payload_type(&ss);
payload = pa_rtp_payload_from_sample_spec(&ss);
mtu = (DEFAULT_MTU/pa_frame_size(&ss))*pa_frame_size(&ss);
@ -203,21 +213,21 @@ int pa__init(pa_core *c, pa_module*m) {
goto fail;
}
if ((dest = pa_modargs_get_value(ma, "destination", DEFAULT_DESTINATION))) {
if (inet_pton(AF_INET6, dest, &sa6.sin6_addr) > 0) {
sa6.sin6_family = af = AF_INET6;
sa6.sin6_port = htons(port);
sap_sa6 = sa6;
sap_sa6.sin6_port = htons(SAP_PORT);
} else if (inet_pton(AF_INET, dest, &sa4.sin_addr) > 0) {
sa4.sin_family = af = AF_INET;
sa4.sin_port = htons(port);
sap_sa4 = sa4;
sap_sa4.sin_port = htons(SAP_PORT);
} else {
pa_log(__FILE__": invalid destination '%s'", dest);
goto fail;
}
dest = pa_modargs_get_value(ma, "destination", DEFAULT_DESTINATION);
if (inet_pton(AF_INET6, dest, &sa6.sin6_addr) > 0) {
sa6.sin6_family = af = AF_INET6;
sa6.sin6_port = htons(port);
sap_sa6 = sa6;
sap_sa6.sin6_port = htons(SAP_PORT);
} else if (inet_pton(AF_INET, dest, &sa4.sin_addr) > 0) {
sa4.sin_family = af = AF_INET;
sa4.sin_port = htons(port);
sap_sa4 = sa4;
sap_sa4.sin_port = htons(SAP_PORT);
} else {
pa_log(__FILE__": invalid destination '%s'", dest);
goto fail;
}
if ((fd = socket(af, SOCK_DGRAM, 0)) < 0) {
@ -240,6 +250,12 @@ int pa__init(pa_core *c, pa_module*m) {
goto fail;
}
if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, &loop, sizeof(loop)) < 0 ||
setsockopt(sap_fd, IPPROTO_IP, IP_MULTICAST_LOOP, &loop, sizeof(loop)) < 0) {
pa_log(__FILE__": IP_MULTICAST_LOOP failed: %s", strerror(errno));
goto fail;
}
if (!(o = pa_source_output_new(s, __FILE__, "RTP Monitor Stream", &ss, &cm, PA_RESAMPLER_INVALID))) {
pa_log(__FILE__": failed to create source output.");
goto fail;
@ -273,23 +289,27 @@ int pa__init(pa_core *c, pa_module*m) {
k = sizeof(sa_dst);
r = getsockname(fd, (struct sockaddr*) &sa_dst, &k);
assert(r >= 0);
n = pa_sprintf_malloc("Polypaudio RTP Stream on %s", pa_get_fqdn(hn, sizeof(hn)));
p = pa_sdp_build(af,
af == AF_INET ? (void*) &((struct sockaddr_in*) &sa_dst)->sin_addr : (void*) &((struct sockaddr_in6*) &sa_dst)->sin6_addr,
af == AF_INET ? (void*) &sa4.sin_addr : (void*) &sa6.sin6_addr,
"Polypaudio RTP Stream", port, payload, &ss);
n, port, payload, &ss);
pa_xfree(n);
pa_rtp_context_init_send(&u->rtp_context, fd, 0, payload, pa_frame_size(&ss));
pa_rtp_context_init_send(&u->rtp_context, fd, c->cookie, payload, pa_frame_size(&ss));
pa_sap_context_init_send(&u->sap_context, sap_fd, p);
pa_log_info("RTP stream initialized with mtu %u on %s:%u, SSRC=0x%08x, payload=%u, initial sequence #%u", mtu, dest, port, u->rtp_context.ssrc, payload, u->rtp_context.sequence);
pa_log_info("SDP-Data:\n%s\nEOF", p);
pa_log_info(__FILE__": RTP stream initialized with mtu %u on %s:%u, SSRC=0x%08x, payload=%u, initial sequence #%u", mtu, dest, port, u->rtp_context.ssrc, payload, u->rtp_context.sequence);
pa_log_info(__FILE__": SDP-Data:\n%s\n"__FILE__": EOF", p);
pa_sap_send(&u->sap_context, 0);
pa_gettimeofday(&tv);
pa_timeval_add(&tv, SAP_INTERVAL);
u->sap_event = c->mainloop->time_new(c->mainloop, &tv, sap_event, u);
u->sap_event = c->mainloop->time_new(c->mainloop, &tv, sap_event_cb, u);
pa_modargs_free(ma);