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rtp-send: Add "inhibit_auto_suspend" module argument

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Some people want module-rtp-send to send silence when the sink that is
monitored goes idle, and some people want module-rtp-send to pause the
RTP stream to avoid unnecessary bandwidth consumption.
This commit is contained in:
Tanu Kaskinen 2014-02-23 19:47:15 +02:00
parent b55de5179a
commit 4ebe88c2b2
1 changed files with 62 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

63
src/modules/rtp/module-rtp-send.c
View file

@ -68,7 +68,8 @@ PA_MODULE_USAGE(
"port=<port number> "
"mtu=<maximum transfer unit> "
"loop=<loopback to local host?> "
"ttl=<ttl value>"
"ttl=<ttl value> "
"inhibit_auto_suspend=<always|never|only_with_non_monitor_sources>"
);
#define DEFAULT_PORT 46000
@ -92,9 +93,16 @@ static const char* const valid_modargs[] = {
"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;
@ -106,6 +114,8 @@ struct userdata {
size_t mtu;
pa_time_event *sap_event;
enum inhibit_auto_suspend inhibit_auto_suspend;
};
/* Called from I/O thread context */
@ -139,6 +149,39 @@ static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk)
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_cb(pa_source_output* o) {
struct userdata *u;
@ -188,6 +231,8 @@ int pa__init(pa_module*m) {
socklen_t k;
char hn[128], *n;
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);
@ -207,6 +252,19 @@ int pa__init(pa_module*m) {
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;
@ -377,6 +435,7 @@ int pa__init(pa_module*m) {
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);
pa_source_output_new(&o, m->core, &data);
pa_source_output_new_data_done(&data);
@ -388,6 +447,7 @@ int pa__init(pa_module*m) {
o->parent.process_msg = source_output_process_msg;
o->push = source_output_push_cb;
o->moving = source_output_moving_cb;
o->kill = source_output_kill_cb;
pa_log_info("Configured source latency of %llu ms.",
@ -440,6 +500,7 @@ int pa__init(pa_module*m) {
pa_sap_send(&u->sap_context, 0);
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);