PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
- by the Free Software Foundation; either version 2 of the License,
+ by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>
-#include <arpa/inet.h>
#include <errno.h>
-#include <string.h>
#include <unistd.h>
+#include <pulse/rtclock.h>
#include <pulse/timeval.h>
#include <pulse/util.h>
#include <pulse/xmalloc.h>
#include <pulsecore/core-error.h>
#include <pulsecore/module.h>
-#include <pulsecore/llist.h>
#include <pulsecore/source.h>
#include <pulsecore/source-output.h>
#include <pulsecore/memblockq.h>
#include <pulsecore/sample-util.h>
#include <pulsecore/macro.h>
#include <pulsecore/socket-util.h>
+#include <pulsecore/arpa-inet.h>
#include "module-rtp-send-symdef.h"
PA_MODULE_AUTHOR("Lennart Poettering");
PA_MODULE_DESCRIPTION("Read data from source and send it to the network via RTP/SAP/SDP");
PA_MODULE_VERSION(PACKAGE_VERSION);
-PA_MODULE_LOAD_ONCE(FALSE);
+PA_MODULE_LOAD_ONCE(false);
PA_MODULE_USAGE(
"source=<name of the source> "
"format=<sample format> "
"channels=<number of channels> "
"rate=<sample rate> "
- "destination=<destination IP address> "
+ "destination_ip=<destination IP address> "
+ "source_ip=<source IP address> "
"port=<port number> "
"mtu=<maximum transfer unit> "
- "loop=<loopback to local host?>"
+ "loop=<loopback to local host?> "
+ "ttl=<ttl value> "
+ "inhibit_auto_suspend=<always|never|only_with_non_monitor_sources>"
);
#define DEFAULT_PORT 46000
+#define DEFAULT_TTL 1
#define SAP_PORT 9875
-#define DEFAULT_DESTINATION "224.0.0.56"
+#define DEFAULT_SOURCE_IP "0.0.0.0"
+#define DEFAULT_DESTINATION_IP "224.0.0.56"
#define MEMBLOCKQ_MAXLENGTH (1024*170)
#define DEFAULT_MTU 1280
-#define SAP_INTERVAL 5
+#define SAP_INTERVAL (5*PA_USEC_PER_SEC)
static const char* const valid_modargs[] = {
"source",
"format",
"channels",
"rate",
- "destination",
+ "destination", /* Compatbility */
+ "destination_ip",
+ "source_ip",
"port",
"mtu" ,
"loop",
+ "ttl",
+ "inhibit_auto_suspend",
NULL
};
+enum inhibit_auto_suspend {
+ INHIBIT_AUTO_SUSPEND_ALWAYS,
+ INHIBIT_AUTO_SUSPEND_NEVER,
+ INHIBIT_AUTO_SUSPEND_ONLY_WITH_NON_MONITOR_SOURCES
+};
+
struct userdata {
pa_module *module;
size_t mtu;
pa_time_event *sap_event;
+
+ enum inhibit_auto_suspend inhibit_auto_suspend;
};
/* Called from I/O thread context */
}
/* Called from I/O thread context */
-static void source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
+static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) {
struct userdata *u;
pa_source_output_assert_ref(o);
pa_assert_se(u = o->userdata);
pa_rtp_send(&u->rtp_context, u->mtu, u->memblockq);
}
+static pa_source_output_flags_t get_dont_inhibit_auto_suspend_flag(pa_source *source,
+ enum inhibit_auto_suspend inhibit_auto_suspend) {
+ pa_assert(source);
+
+ switch (inhibit_auto_suspend) {
+ case INHIBIT_AUTO_SUSPEND_ALWAYS:
+ return 0;
+
+ case INHIBIT_AUTO_SUSPEND_NEVER:
+ return PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND;
+
+ case INHIBIT_AUTO_SUSPEND_ONLY_WITH_NON_MONITOR_SOURCES:
+ return source->monitor_of ? 0 : PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND;
+ }
+
+ pa_assert_not_reached();
+}
+
+/* Called from the main thread. */
+static void source_output_moving_cb(pa_source_output *o, pa_source *dest) {
+ struct userdata *u;
+
+ pa_assert(o);
+
+ u = o->userdata;
+
+ if (!dest)
+ return;
+
+ o->flags &= ~PA_SOURCE_OUTPUT_DONT_INHIBIT_AUTO_SUSPEND;
+ o->flags |= get_dont_inhibit_auto_suspend_flag(dest, u->inhibit_auto_suspend);
+}
+
/* Called from main context */
-static void source_output_kill(pa_source_output* o) {
+static void source_output_kill_cb(pa_source_output* o) {
struct userdata *u;
pa_source_output_assert_ref(o);
pa_assert_se(u = o->userdata);
- pa_module_unload_request(u->module);
+ pa_module_unload_request(u->module, true);
pa_source_output_unlink(u->source_output);
pa_source_output_unref(u->source_output);
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;
pa_assert(m);
pa_assert(t);
- pa_assert(tv);
pa_assert(u);
pa_sap_send(&u->sap_context, 0);
- pa_gettimeofday(&next);
- pa_timeval_add(&next, SAP_INTERVAL * PA_USEC_PER_SEC);
- m->time_restart(t, &next);
+ pa_core_rttime_restart(u->module->core, t, pa_rtclock_now() + SAP_INTERVAL);
}
int pa__init(pa_module*m) {
struct userdata *u;
pa_modargs *ma = NULL;
- const char *dest;
+ const char *dst_addr;
+ const char *src_addr;
uint32_t port = DEFAULT_PORT, mtu;
- int af, fd = -1, sap_fd = -1;
+ uint32_t ttl = DEFAULT_TTL;
+ sa_family_t af;
+ int fd = -1, sap_fd = -1;
pa_source *s;
pa_sample_spec ss;
pa_channel_map cm;
- struct sockaddr_in sa4, sap_sa4;
- struct sockaddr_in6 sa6, sap_sa6;
+ struct sockaddr_in dst_sa4, dst_sap_sa4, src_sa4, src_sap_sa4;
+#ifdef HAVE_IPV6
+ struct sockaddr_in6 dst_sa6, dst_sap_sa6, src_sa6, src_sap_sa6;
+#endif
struct sockaddr_storage sa_dst;
pa_source_output *o = NULL;
uint8_t payload;
char *p;
int r, j;
socklen_t k;
- struct timeval tv;
char hn[128], *n;
- pa_bool_t loop = FALSE;
+ bool loop = false;
+ enum inhibit_auto_suspend inhibit_auto_suspend = INHIBIT_AUTO_SUSPEND_ONLY_WITH_NON_MONITOR_SOURCES;
+ const char *inhibit_auto_suspend_str;
pa_source_output_new_data data;
pa_assert(m);
goto fail;
}
- if (!(s = pa_namereg_get(m->core, pa_modargs_get_value(ma, "source", NULL), PA_NAMEREG_SOURCE, 1))) {
+ if (!(s = pa_namereg_get(m->core, pa_modargs_get_value(ma, "source", NULL), PA_NAMEREG_SOURCE))) {
pa_log("Source does not exist.");
goto fail;
}
goto fail;
}
+ if ((inhibit_auto_suspend_str = pa_modargs_get_value(ma, "inhibit_auto_suspend", NULL))) {
+ if (pa_streq(inhibit_auto_suspend_str, "always"))
+ inhibit_auto_suspend = INHIBIT_AUTO_SUSPEND_ALWAYS;
+ else if (pa_streq(inhibit_auto_suspend_str, "never"))
+ inhibit_auto_suspend = INHIBIT_AUTO_SUSPEND_NEVER;
+ else if (pa_streq(inhibit_auto_suspend_str, "only_with_non_monitor_sources"))
+ inhibit_auto_suspend = INHIBIT_AUTO_SUSPEND_ONLY_WITH_NON_MONITOR_SOURCES;
+ else {
+ pa_log("Failed to parse the \"inhibit_auto_suspend\" parameter.");
+ goto fail;
+ }
+ }
+
ss = s->sample_spec;
pa_rtp_sample_spec_fixup(&ss);
cm = s->channel_map;
payload = pa_rtp_payload_from_sample_spec(&ss);
- mtu = pa_frame_align(DEFAULT_MTU, &ss);
+ mtu = (uint32_t) pa_frame_align(DEFAULT_MTU, &ss);
if (pa_modargs_get_value_u32(ma, "mtu", &mtu) < 0 || mtu < 1 || mtu % pa_frame_size(&ss) != 0) {
pa_log("Invalid MTU.");
goto fail;
}
- port = DEFAULT_PORT + ((rand() % 512) << 1);
+ port = DEFAULT_PORT + ((uint32_t) (rand() % 512) << 1);
if (pa_modargs_get_value_u32(ma, "port", &port) < 0 || port < 1 || port > 0xFFFF) {
pa_log("port= expects a numerical argument between 1 and 65535.");
goto fail;
if (port & 1)
pa_log_warn("Port number not even as suggested in RFC3550!");
- 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);
+ if (pa_modargs_get_value_u32(ma, "ttl", &ttl) < 0 || ttl < 1 || ttl > 0xFF) {
+ pa_log("ttl= expects a numerical argument between 1 and 255.");
+ goto fail;
+ }
+
+ src_addr = pa_modargs_get_value(ma, "source_ip", DEFAULT_SOURCE_IP);
+
+ if (inet_pton(AF_INET, src_addr, &src_sa4.sin_addr) > 0) {
+ src_sa4.sin_family = af = AF_INET;
+ src_sa4.sin_port = htons(0);
+ memset(&src_sa4.sin_zero, 0, sizeof(src_sa4.sin_zero));
+ src_sap_sa4 = src_sa4;
+#ifdef HAVE_IPV6
+ } else if (inet_pton(AF_INET6, src_addr, &src_sa6.sin6_addr) > 0) {
+ src_sa6.sin6_family = af = AF_INET6;
+ src_sa6.sin6_port = htons(0);
+ src_sa6.sin6_flowinfo = 0;
+ src_sa6.sin6_scope_id = 0;
+ src_sap_sa6 = src_sa6;
+#endif
} else {
- pa_log("Invalid destination '%s'", dest);
+ pa_log("Invalid source address '%s'", src_addr);
goto fail;
}
- if ((fd = socket(af, SOCK_DGRAM, 0)) < 0) {
+ dst_addr = pa_modargs_get_value(ma, "destination", NULL);
+ if (dst_addr == NULL)
+ dst_addr = pa_modargs_get_value(ma, "destination_ip", DEFAULT_DESTINATION_IP);
+
+ if (inet_pton(AF_INET, dst_addr, &dst_sa4.sin_addr) > 0) {
+ dst_sa4.sin_family = af = AF_INET;
+ dst_sa4.sin_port = htons((uint16_t) port);
+ memset(&dst_sa4.sin_zero, 0, sizeof(dst_sa4.sin_zero));
+ dst_sap_sa4 = dst_sa4;
+ dst_sap_sa4.sin_port = htons(SAP_PORT);
+#ifdef HAVE_IPV6
+ } else if (inet_pton(AF_INET6, dst_addr, &dst_sa6.sin6_addr) > 0) {
+ dst_sa6.sin6_family = af = AF_INET6;
+ dst_sa6.sin6_port = htons((uint16_t) port);
+ dst_sa6.sin6_flowinfo = 0;
+ dst_sa6.sin6_scope_id = 0;
+ dst_sap_sa6 = dst_sa6;
+ dst_sap_sa6.sin6_port = htons(SAP_PORT);
+#endif
+ } else {
+ pa_log("Invalid destination '%s'", dst_addr);
+ goto fail;
+ }
+
+ if ((fd = pa_socket_cloexec(af, SOCK_DGRAM, 0)) < 0) {
pa_log("socket() failed: %s", pa_cstrerror(errno));
goto fail;
}
- if (connect(fd, af == AF_INET ? (struct sockaddr*) &sa4 : (struct sockaddr*) &sa6, af == AF_INET ? sizeof(sa4) : sizeof(sa6)) < 0) {
+ if (af == AF_INET && bind(fd, (struct sockaddr*) &src_sa4, sizeof(src_sa4)) < 0) {
+ pa_log("bind() failed: %s", pa_cstrerror(errno));
+ goto fail;
+#ifdef HAVE_IPV6
+ } else if (af == AF_INET6 && bind(fd, (struct sockaddr*) &src_sa6, sizeof(src_sa6)) < 0) {
+ pa_log("bind() failed: %s", pa_cstrerror(errno));
+ goto fail;
+#endif
+ }
+
+ if (af == AF_INET && connect(fd, (struct sockaddr*) &dst_sa4, sizeof(dst_sa4)) < 0) {
+ pa_log("connect() failed: %s", pa_cstrerror(errno));
+ goto fail;
+#ifdef HAVE_IPV6
+ } else if (af == AF_INET6 && connect(fd, (struct sockaddr*) &dst_sa6, sizeof(dst_sa6)) < 0) {
pa_log("connect() failed: %s", pa_cstrerror(errno));
goto fail;
+#endif
}
- if ((sap_fd = socket(af, SOCK_DGRAM, 0)) < 0) {
+ if ((sap_fd = pa_socket_cloexec(af, SOCK_DGRAM, 0)) < 0) {
pa_log("socket() failed: %s", pa_cstrerror(errno));
goto fail;
}
- if (connect(sap_fd, af == AF_INET ? (struct sockaddr*) &sap_sa4 : (struct sockaddr*) &sap_sa6, af == AF_INET ? sizeof(sap_sa4) : sizeof(sap_sa6)) < 0) {
+ if (af == AF_INET && bind(sap_fd, (struct sockaddr*) &src_sap_sa4, sizeof(src_sap_sa4)) < 0) {
+ pa_log("bind() failed: %s", pa_cstrerror(errno));
+ goto fail;
+#ifdef HAVE_IPV6
+ } else if (af == AF_INET6 && bind(sap_fd, (struct sockaddr*) &src_sap_sa6, sizeof(src_sap_sa6)) < 0) {
+ pa_log("bind() failed: %s", pa_cstrerror(errno));
+ goto fail;
+#endif
+ }
+
+ if (af == AF_INET && connect(sap_fd, (struct sockaddr*) &dst_sap_sa4, sizeof(dst_sap_sa4)) < 0) {
pa_log("connect() failed: %s", pa_cstrerror(errno));
goto fail;
+#ifdef HAVE_IPV6
+ } else if (af == AF_INET6 && connect(sap_fd, (struct sockaddr*) &dst_sap_sa6, sizeof(dst_sap_sa6)) < 0) {
+ pa_log("connect() failed: %s", pa_cstrerror(errno));
+ goto fail;
+#endif
}
j = !!loop;
goto fail;
}
+ if (ttl != DEFAULT_TTL) {
+ int _ttl = (int) ttl;
+
+ if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_TTL, &_ttl, sizeof(_ttl)) < 0) {
+ pa_log("IP_MULTICAST_TTL failed: %s", pa_cstrerror(errno));
+ goto fail;
+ }
+
+ if (setsockopt(sap_fd, IPPROTO_IP, IP_MULTICAST_TTL, &_ttl, sizeof(_ttl)) < 0) {
+ pa_log("IP_MULTICAST_TTL (sap) failed: %s", pa_cstrerror(errno));
+ goto fail;
+ }
+ }
+
/* If the socket queue is full, let's drop packets */
pa_make_fd_nonblock(fd);
pa_make_udp_socket_low_delay(fd);
- pa_make_fd_cloexec(fd);
- pa_make_fd_cloexec(sap_fd);
pa_source_output_new_data_init(&data);
pa_proplist_sets(data.proplist, PA_PROP_MEDIA_NAME, "RTP Monitor Stream");
- pa_proplist_sets(data.proplist, "rtp.destination", dest);
+ pa_proplist_sets(data.proplist, "rtp.source", src_addr);
+ pa_proplist_sets(data.proplist, "rtp.destination", dst_addr);
pa_proplist_setf(data.proplist, "rtp.mtu", "%lu", (unsigned long) mtu);
pa_proplist_setf(data.proplist, "rtp.port", "%lu", (unsigned long) port);
+ pa_proplist_setf(data.proplist, "rtp.ttl", "%lu", (unsigned long) ttl);
data.driver = __FILE__;
data.module = m;
- data.source = s;
+ pa_source_output_new_data_set_source(&data, s, false);
pa_source_output_new_data_set_sample_spec(&data, &ss);
pa_source_output_new_data_set_channel_map(&data, &cm);
+ data.flags |= get_dont_inhibit_auto_suspend_flag(s, inhibit_auto_suspend);
- o = pa_source_output_new(m->core, &data, 0);
+ pa_source_output_new(&o, m->core, &data);
pa_source_output_new_data_done(&data);
if (!o) {
}
o->parent.process_msg = source_output_process_msg;
- o->push = source_output_push;
- o->kill = source_output_kill;
+ o->push = source_output_push_cb;
+ o->moving = source_output_moving_cb;
+ o->kill = source_output_kill_cb;
- u = pa_xnew(struct userdata, 1);
- m->userdata = u;
- o->userdata = u;
+ pa_log_info("Configured source latency of %llu ms.",
+ (unsigned long long) pa_source_output_set_requested_latency(o, pa_bytes_to_usec(mtu, &o->sample_spec)) / PA_USEC_PER_MSEC);
+ m->userdata = o->userdata = u = pa_xnew(struct userdata, 1);
u->module = m;
u->source_output = o;
u->memblockq = pa_memblockq_new(
+ "module-rtp-send memblockq",
0,
MEMBLOCKQ_MAXLENGTH,
MEMBLOCKQ_MAXLENGTH,
- pa_frame_size(&ss),
+ &ss,
1,
0,
0,
n = pa_sprintf_malloc("PulseAudio 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,
- n, port, payload, &ss);
+ if (af == AF_INET) {
+ p = pa_sdp_build(af,
+ (void*) &((struct sockaddr_in*) &sa_dst)->sin_addr,
+ (void*) &dst_sa4.sin_addr,
+ n, (uint16_t) port, payload, &ss);
+#ifdef HAVE_IPV6
+ } else {
+ p = pa_sdp_build(af,
+ (void*) &((struct sockaddr_in6*) &sa_dst)->sin6_addr,
+ (void*) &dst_sa6.sin6_addr,
+ n, (uint16_t) port, payload, &ss);
+#endif
+ }
pa_xfree(n);
pa_rtp_context_init_send(&u->rtp_context, fd, m->core->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("RTP stream initialized with mtu %u on %s:%u from %s ttl=%u, SSRC=0x%08x, payload=%u, initial sequence #%u", mtu, dst_addr, port, src_addr, ttl, u->rtp_context.ssrc, payload, u->rtp_context.sequence);
pa_log_info("SDP-Data:\n%s\nEOF", p);
pa_sap_send(&u->sap_context, 0);
- pa_gettimeofday(&tv);
- pa_timeval_add(&tv, SAP_INTERVAL * PA_USEC_PER_SEC);
- u->sap_event = m->core->mainloop->time_new(m->core->mainloop, &tv, sap_event_cb, u);
+ u->sap_event = pa_core_rttime_new(m->core, pa_rtclock_now() + SAP_INTERVAL, sap_event_cb, u);
+ u->inhibit_auto_suspend = inhibit_auto_suspend;
pa_source_output_put(u->source_output);