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-rw-r--r--src/modules/rtp/module-rtp-recv.c107
1 files changed, 74 insertions, 33 deletions
diff --git a/src/modules/rtp/module-rtp-recv.c b/src/modules/rtp/module-rtp-recv.c
index 33e23af2..5caf8272 100644
--- a/src/modules/rtp/module-rtp-recv.c
+++ b/src/modules/rtp/module-rtp-recv.c
@@ -33,6 +33,7 @@
#include <unistd.h>
#include <poll.h>
+#include <pulse/rtclock.h>
#include <pulse/timeval.h>
#include <pulse/xmalloc.h>
@@ -43,15 +44,17 @@
#include <pulsecore/sink-input.h>
#include <pulsecore/memblockq.h>
#include <pulsecore/log.h>
+#include <pulsecore/core-rtclock.h>
#include <pulsecore/core-util.h>
#include <pulsecore/modargs.h>
#include <pulsecore/namereg.h>
#include <pulsecore/sample-util.h>
#include <pulsecore/macro.h>
#include <pulsecore/atomic.h>
-#include <pulsecore/rtclock.h>
#include <pulsecore/atomic.h>
#include <pulsecore/time-smoother.h>
+#include <pulsecore/socket-util.h>
+#include <pulsecore/once.h>
#include "module-rtp-recv-symdef.h"
@@ -60,7 +63,7 @@
#include "sap.h"
PA_MODULE_AUTHOR("Lennart Poettering");
-PA_MODULE_DESCRIPTION("Recieve data from a network via RTP/SAP/SDP");
+PA_MODULE_DESCRIPTION("Receive data from a network via RTP/SAP/SDP");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(FALSE);
PA_MODULE_USAGE(
@@ -110,6 +113,7 @@ struct session {
struct userdata {
pa_module *module;
+ pa_core *core;
pa_sap_context sap_context;
pa_io_event* sap_event;
@@ -165,7 +169,7 @@ static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) {
pa_memblockq_rewind(s->memblockq, nbytes);
}
-/* Called from thread context */
+/* Called from I/O thread context */
static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes) {
struct session *s;
@@ -184,11 +188,24 @@ static void sink_input_kill(pa_sink_input* i) {
session_free(s);
}
+/* Called from IO context */
+static void sink_input_suspend_within_thread(pa_sink_input* i, pa_bool_t b) {
+ struct session *s;
+ pa_sink_input_assert_ref(i);
+ pa_assert_se(s = i->userdata);
+
+ if (b) {
+ pa_smoother_pause(s->smoother, pa_rtclock_now());
+ pa_memblockq_flush_read(s->memblockq);
+ } else
+ s->first_packet = FALSE;
+}
+
/* Called from I/O thread context */
static int rtpoll_work_cb(pa_rtpoll_item *i) {
pa_memchunk chunk;
int64_t k, j, delta;
- struct timeval now;
+ struct timeval now = { 0, 0 };
struct session *s;
struct pollfd *p;
@@ -206,10 +223,11 @@ static int rtpoll_work_cb(pa_rtpoll_item *i) {
p->revents = 0;
- if (pa_rtp_recv(&s->rtp_context, &chunk, s->userdata->module->core->mempool) < 0)
+ if (pa_rtp_recv(&s->rtp_context, &chunk, s->userdata->module->core->mempool, &now) < 0)
return 0;
- if (s->sdp_info.payload != s->rtp_context.payload) {
+ if (s->sdp_info.payload != s->rtp_context.payload ||
+ !PA_SINK_IS_OPENED(s->sink_input->sink->thread_info.state)) {
pa_memblock_unref(chunk.memblock);
return 0;
}
@@ -229,7 +247,7 @@ static int rtpoll_work_cb(pa_rtpoll_item *i) {
}
}
- /* Check wheter there was a timestamp overflow */
+ /* Check whether there was a timestamp overflow */
k = (int64_t) s->rtp_context.timestamp - (int64_t) s->offset;
j = (int64_t) 0x100000000LL - (int64_t) s->offset + (int64_t) s->rtp_context.timestamp;
@@ -238,15 +256,24 @@ static int rtpoll_work_cb(pa_rtpoll_item *i) {
else
delta = j;
- pa_memblockq_seek(s->memblockq, delta * (int64_t) s->rtp_context.frame_size, PA_SEEK_RELATIVE);
+ pa_memblockq_seek(s->memblockq, delta * (int64_t) s->rtp_context.frame_size, PA_SEEK_RELATIVE, TRUE);
- pa_rtclock_get(&now);
+ if (now.tv_sec == 0) {
+ PA_ONCE_BEGIN {
+ pa_log_warn("Using artificial time instead of timestamp");
+ } PA_ONCE_END;
+ pa_rtclock_get(&now);
+ } else
+ pa_rtclock_from_wallclock(&now);
pa_smoother_put(s->smoother, pa_timeval_load(&now), pa_bytes_to_usec((uint64_t) pa_memblockq_get_write_index(s->memblockq), &s->sink_input->sample_spec));
+ /* Tell the smoother that we are rolling now, in case it is still paused */
+ pa_smoother_resume(s->smoother, pa_timeval_load(&now), TRUE);
+
if (pa_memblockq_push(s->memblockq, &chunk) < 0) {
pa_log_warn("Queue overrun");
- pa_memblockq_seek(s->memblockq, (int64_t) chunk.length, PA_SEEK_RELATIVE);
+ pa_memblockq_seek(s->memblockq, (int64_t) chunk.length, PA_SEEK_RELATIVE, TRUE);
}
/* pa_log("blocks in q: %u", pa_memblockq_get_nblocks(s->memblockq)); */
@@ -262,14 +289,14 @@ static int rtpoll_work_cb(pa_rtpoll_item *i) {
pa_usec_t wi, ri, render_delay, sink_delay = 0, latency, fix;
unsigned fix_samples;
- pa_log("Updating sample rate");
+ pa_log_debug("Updating sample rate");
wi = pa_smoother_get(s->smoother, pa_timeval_load(&now));
ri = pa_bytes_to_usec((uint64_t) pa_memblockq_get_read_index(s->memblockq), &s->sink_input->sample_spec);
- if (PA_MSGOBJECT(s->sink_input->sink)->process_msg(PA_MSGOBJECT(s->sink_input->sink), PA_SINK_MESSAGE_GET_LATENCY, &sink_delay, 0, NULL) < 0)
- sink_delay = 0;
+ pa_log_debug("wi=%lu ri=%lu", (unsigned long) wi, (unsigned long) ri);
+ sink_delay = pa_sink_get_latency_within_thread(s->sink_input->sink);
render_delay = pa_bytes_to_usec(pa_memblockq_get_length(s->sink_input->thread_info.render_memblockq), &s->sink_input->sink->sample_spec);
if (ri > render_delay+sink_delay)
@@ -294,14 +321,20 @@ static int rtpoll_work_cb(pa_rtpoll_item *i) {
fix_samples = (unsigned) (fix * (pa_usec_t) s->sink_input->thread_info.sample_spec.rate / (pa_usec_t) RATE_UPDATE_INTERVAL);
/* Check if deviation is in bounds */
- if (fix_samples > s->sink_input->sample_spec.rate*.20)
+ if (fix_samples > s->sink_input->sample_spec.rate*.50)
pa_log_debug("Hmmm, rate fix is too large (%lu Hz), not applying.", (unsigned long) fix_samples);
+ else {
+ /* Fix up rate */
+ if (latency < s->intended_latency)
+ s->sink_input->sample_spec.rate -= fix_samples;
+ else
+ s->sink_input->sample_spec.rate += fix_samples;
+
+ if (s->sink_input->sample_spec.rate > PA_RATE_MAX)
+ s->sink_input->sample_spec.rate = PA_RATE_MAX;
+ }
- /* Fix up rate */
- if (latency < s->intended_latency)
- s->sink_input->sample_spec.rate -= fix_samples;
- else
- s->sink_input->sample_spec.rate += fix_samples;
+ pa_assert(pa_sample_spec_valid(&s->sink_input->sample_spec));
pa_resampler_set_input_rate(s->sink_input->thread_info.resampler, s->sink_input->sample_spec.rate);
@@ -362,6 +395,14 @@ static int mcast_socket(const struct sockaddr* sa, socklen_t salen) {
goto fail;
}
+ pa_make_udp_socket_low_delay(fd);
+
+ one = 1;
+ if (setsockopt(fd, SOL_SOCKET, SO_TIMESTAMP, &one, sizeof(one)) < 0) {
+ pa_log("SO_TIMESTAMP failed: %s", pa_cstrerror(errno));
+ goto fail;
+ }
+
one = 1;
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) < 0) {
pa_log("SO_REUSEADDR failed: %s", pa_cstrerror(errno));
@@ -430,8 +471,14 @@ static struct session *session_new(struct userdata *u, const pa_sdp_info *sdp_in
s->sdp_info = *sdp_info;
s->rtpoll_item = NULL;
s->intended_latency = LATENCY_USEC;
- s->smoother = pa_smoother_new(PA_USEC_PER_SEC*5, PA_USEC_PER_SEC*2, TRUE, 10);
- pa_smoother_set_time_offset(s->smoother, pa_timeval_load(&now));
+ s->smoother = pa_smoother_new(
+ PA_USEC_PER_SEC*5,
+ PA_USEC_PER_SEC*2,
+ TRUE,
+ TRUE,
+ 10,
+ pa_timeval_load(&now),
+ TRUE);
s->last_rate_update = pa_timeval_load(&now);
pa_atomic_store(&s->timestamp, (int) now.tv_sec);
@@ -472,6 +519,7 @@ static struct session *session_new(struct userdata *u, const pa_sdp_info *sdp_in
s->sink_input->kill = sink_input_kill;
s->sink_input->attach = sink_input_attach;
s->sink_input->detach = sink_input_detach;
+ s->sink_input->suspend_within_thread = sink_input_suspend_within_thread;
pa_sink_input_get_silence(s->sink_input, &silence);
@@ -575,15 +623,13 @@ static void sap_event_cb(pa_mainloop_api *m, pa_io_event *e, int fd, pa_io_event
}
}
-static void check_death_event_cb(pa_mainloop_api *m, pa_time_event *t, const struct timeval *ptv, void *userdata) {
+static void check_death_event_cb(pa_mainloop_api *m, pa_time_event *t, const struct timeval *tv, void *userdata) {
struct session *s, *n;
struct userdata *u = userdata;
struct timeval now;
- struct timeval tv;
pa_assert(m);
pa_assert(t);
- pa_assert(ptv);
pa_assert(u);
pa_rtclock_get(&now);
@@ -601,9 +647,7 @@ static void check_death_event_cb(pa_mainloop_api *m, pa_time_event *t, const str
}
/* Restart timer */
- pa_gettimeofday(&tv);
- pa_timeval_add(&tv, DEATH_TIMEOUT*PA_USEC_PER_SEC);
- m->time_restart(t, &tv);
+ pa_core_rttime_restart(u->module->core, t, pa_rtclock_now() + DEATH_TIMEOUT * PA_USEC_PER_SEC);
}
int pa__init(pa_module*m) {
@@ -617,7 +661,6 @@ int pa__init(pa_module*m) {
socklen_t salen;
const char *sap_address;
int fd = -1;
- struct timeval tv;
pa_assert(m);
@@ -648,9 +691,9 @@ int pa__init(pa_module*m) {
if ((fd = mcast_socket(sa, salen)) < 0)
goto fail;
- u = pa_xnew(struct userdata, 1);
- m->userdata = u;
+ m->userdata = u = pa_xnew(struct userdata, 1);
u->module = m;
+ u->core = m->core;
u->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL));
u->sap_event = m->core->mainloop->io_new(m->core->mainloop, fd, PA_IO_EVENT_INPUT, sap_event_cb, u);
@@ -660,9 +703,7 @@ int pa__init(pa_module*m) {
u->n_sessions = 0;
u->by_origin = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
- pa_gettimeofday(&tv);
- pa_timeval_add(&tv, DEATH_TIMEOUT * PA_USEC_PER_SEC);
- u->check_death_event = m->core->mainloop->time_new(m->core->mainloop, &tv, check_death_event_cb, u);
+ u->check_death_event = pa_core_rttime_new(m->core, pa_rtclock_now() + DEATH_TIMEOUT * PA_USEC_PER_SEC, check_death_event_cb, u);
pa_modargs_free(ma);