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-rw-r--r--src/pulsecore/source-output.c354
1 files changed, 281 insertions, 73 deletions
diff --git a/src/pulsecore/source-output.c b/src/pulsecore/source-output.c
index 88c11469..5c36937a 100644
--- a/src/pulsecore/source-output.c
+++ b/src/pulsecore/source-output.c
@@ -32,12 +32,16 @@
#include <pulse/utf8.h>
#include <pulse/xmalloc.h>
+#include <pulsecore/sample-util.h>
#include <pulsecore/core-subscribe.h>
#include <pulsecore/log.h>
#include <pulsecore/namereg.h>
+#include <pulsecore/core-util.h>
#include "source-output.h"
+#define MEMBLOCKQ_MAXLENGTH (32*1024*1024)
+
static PA_DEFINE_CHECK_TYPE(pa_source_output, pa_msgobject);
static void source_output_free(pa_object* mo);
@@ -47,9 +51,18 @@ pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_d
memset(data, 0, sizeof(*data));
data->resample_method = PA_RESAMPLER_INVALID;
+ data->proplist = pa_proplist_new();
+
return data;
}
+void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data *data, const pa_sample_spec *spec) {
+ pa_assert(data);
+
+ if ((data->sample_spec_is_set = !!spec))
+ data->sample_spec = *spec;
+}
+
void pa_source_output_new_data_set_channel_map(pa_source_output_new_data *data, const pa_channel_map *map) {
pa_assert(data);
@@ -57,11 +70,25 @@ void pa_source_output_new_data_set_channel_map(pa_source_output_new_data *data,
data->channel_map = *map;
}
-void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data *data, const pa_sample_spec *spec) {
+void pa_source_output_new_data_done(pa_source_output_new_data *data) {
pa_assert(data);
- if ((data->sample_spec_is_set = !!spec))
- data->sample_spec = *spec;
+ pa_proplist_free(data->proplist);
+}
+
+static void reset_callbacks(pa_source_output *o) {
+ pa_assert(o);
+
+ o->push = NULL;
+ o->process_rewind = NULL;
+ o->update_max_rewind = NULL;
+ o->attach = NULL;
+ o->detach = NULL;
+ o->suspend = NULL;
+ o->moved = NULL;
+ o->kill = NULL;
+ o->get_latency = NULL;
+ o->state_change = NULL;
}
pa_source_output* pa_source_output_new(
@@ -80,7 +107,6 @@ pa_source_output* pa_source_output_new(
return NULL;
pa_return_null_if_fail(!data->driver || pa_utf8_valid(data->driver));
- pa_return_null_if_fail(!data->name || pa_utf8_valid(data->name));
if (!data->source)
data->source = pa_namereg_get(core, NULL, PA_NAMEREG_SOURCE, 1);
@@ -156,7 +182,7 @@ pa_source_output* pa_source_output_new(
o->core = core;
o->state = PA_SOURCE_OUTPUT_INIT;
o->flags = flags;
- o->name = pa_xstrdup(data->name);
+ o->proplist = pa_proplist_copy(data->proplist);
o->driver = pa_xstrdup(data->driver);
o->module = data->module;
o->source = data->source;
@@ -166,26 +192,31 @@ pa_source_output* pa_source_output_new(
o->sample_spec = data->sample_spec;
o->channel_map = data->channel_map;
- o->push = NULL;
- o->kill = NULL;
- o->get_latency = NULL;
- o->detach = NULL;
- o->attach = NULL;
- o->suspend = NULL;
- o->moved = NULL;
+ reset_callbacks(o);
o->userdata = NULL;
o->thread_info.state = o->state;
o->thread_info.attached = FALSE;
o->thread_info.sample_spec = o->sample_spec;
o->thread_info.resampler = resampler;
+ o->thread_info.requested_source_latency = (pa_usec_t) -1;
+
+ o->thread_info.delay_memblockq = pa_memblockq_new(
+ 0,
+ MEMBLOCKQ_MAXLENGTH,
+ 0,
+ pa_frame_size(&o->source->sample_spec),
+ 0,
+ 1,
+ 0,
+ &o->source->silence);
pa_assert_se(pa_idxset_put(core->source_outputs, o, &o->index) == 0);
pa_assert_se(pa_idxset_put(o->source->outputs, pa_source_output_ref(o), NULL) == 0);
pa_log_info("Created output %u \"%s\" on %s with sample spec %s and channel map %s",
o->index,
- o->name,
+ pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)),
o->source->name,
pa_sample_spec_snprint(st, sizeof(st), &o->sample_spec),
pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map));
@@ -195,22 +226,27 @@ pa_source_output* pa_source_output_new(
return o;
}
-static int source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
+static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
pa_assert(o);
- if (o->state == state)
- return 0;
-
- if (pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL) < 0)
- return -1;
-
if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
pa_assert_se(o->source->n_corked -- >= 1);
else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
o->source->n_corked++;
pa_source_update_status(o->source);
+}
+static int source_output_set_state(pa_source_output *o, pa_source_output_state_t state) {
+ pa_assert(o);
+
+ if (o->state == state)
+ return 0;
+
+ if (pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_STATE, PA_UINT_TO_PTR(state), 0, NULL) < 0)
+ return -1;
+
+ update_n_corked(o, state);
o->state = state;
if (state != PA_SOURCE_OUTPUT_UNLINKED)
@@ -228,7 +264,7 @@ void pa_source_output_unlink(pa_source_output*o) {
pa_source_output_ref(o);
- linked = PA_SOURCE_OUTPUT_LINKED(o->state);
+ linked = PA_SOURCE_OUTPUT_IS_LINKED(o->state);
if (linked)
pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK], o);
@@ -237,20 +273,14 @@ void pa_source_output_unlink(pa_source_output*o) {
if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
pa_source_output_unref(o);
- if (linked) {
- pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL);
- source_output_set_state(o, PA_SOURCE_OUTPUT_UNLINKED);
- pa_source_update_status(o->source);
- } else
- o->state = PA_SOURCE_OUTPUT_UNLINKED;
+ update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
+ o->state = PA_SOURCE_OUTPUT_UNLINKED;
- o->push = NULL;
- o->kill = NULL;
- o->get_latency = NULL;
- o->attach = NULL;
- o->detach = NULL;
- o->suspend = NULL;
- o->moved = NULL;
+ if (linked)
+ if (o->source->asyncmsgq)
+ pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL);
+
+ reset_callbacks(o);
if (linked) {
pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
@@ -264,45 +294,50 @@ void pa_source_output_unlink(pa_source_output*o) {
static void source_output_free(pa_object* mo) {
pa_source_output *o = PA_SOURCE_OUTPUT(mo);
+ pa_assert(o);
pa_assert(pa_source_output_refcnt(o) == 0);
- if (PA_SOURCE_OUTPUT_LINKED(o->state))
+ if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
pa_source_output_unlink(o);
- pa_log_info("Freeing output %u \"%s\"", o->index, o->name);
+ pa_log_info("Freeing output %u \"%s\"", o->index, pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME)));
pa_assert(!o->thread_info.attached);
+ if (o->thread_info.delay_memblockq)
+ pa_memblockq_free(o->thread_info.delay_memblockq);
+
if (o->thread_info.resampler)
pa_resampler_free(o->thread_info.resampler);
- pa_xfree(o->name);
+ if (o->proplist)
+ pa_proplist_free(o->proplist);
+
pa_xfree(o->driver);
pa_xfree(o);
}
void pa_source_output_put(pa_source_output *o) {
+ pa_source_output_state_t state;
pa_source_output_assert_ref(o);
pa_assert(o->state == PA_SOURCE_OUTPUT_INIT);
pa_assert(o->push);
- o->thread_info.state = o->state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
+ state = o->flags & PA_SOURCE_OUTPUT_START_CORKED ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
- if (o->state == PA_SOURCE_OUTPUT_CORKED)
- o->source->n_corked++;
+ update_n_corked(o, state);
+ o->state = state;
pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL);
- pa_source_update_status(o->source);
pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
-
pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PUT], o);
}
void pa_source_output_kill(pa_source_output*o) {
pa_source_output_assert_ref(o);
- pa_assert(PA_SOURCE_OUTPUT_LINKED(o->state));
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
if (o->kill)
o->kill(o);
@@ -312,7 +347,7 @@ pa_usec_t pa_source_output_get_latency(pa_source_output *o) {
pa_usec_t r = 0;
pa_source_output_assert_ref(o);
- pa_assert(PA_SOURCE_OUTPUT_LINKED(o->state));
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
if (pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY, &r, 0, NULL) < 0)
r = 0;
@@ -325,42 +360,169 @@ pa_usec_t pa_source_output_get_latency(pa_source_output *o) {
/* Called from thread context */
void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
- pa_memchunk rchunk;
+ size_t length;
+ size_t limit, mbs = 0;
pa_source_output_assert_ref(o);
- pa_assert(PA_SOURCE_OUTPUT_LINKED(o->thread_info.state));
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
pa_assert(chunk);
- pa_assert(chunk->length);
+ pa_assert(pa_frame_aligned(chunk->length, &o->source->sample_spec));
if (!o->push || o->state == PA_SOURCE_OUTPUT_CORKED)
return;
pa_assert(o->state == PA_SOURCE_OUTPUT_RUNNING);
- if (!o->thread_info.resampler) {
- o->push(o, chunk);
- return;
+ if (pa_memblockq_push(o->thread_info.delay_memblockq, chunk) < 0) {
+ pa_log_debug("Delay queue overflow!");
+ pa_memblockq_seek(o->thread_info.delay_memblockq, chunk->length, PA_SEEK_RELATIVE);
}
- pa_resampler_run(o->thread_info.resampler, chunk, &rchunk);
- if (!rchunk.length)
+ limit = o->process_rewind ? 0 : o->source->thread_info.max_rewind;
+
+ /* Implement the delay queue */
+ while ((length = pa_memblockq_get_length(o->thread_info.delay_memblockq)) > limit) {
+ pa_memchunk qchunk;
+
+ length -= limit;
+
+ pa_assert_se(pa_memblockq_peek(o->thread_info.delay_memblockq, &qchunk) >= 0);
+
+ if (qchunk.length > length)
+ qchunk.length = length;
+
+ pa_assert(qchunk.length > 0);
+
+ if (!o->thread_info.resampler)
+ o->push(o, &qchunk);
+ else {
+ pa_memchunk rchunk;
+
+ if (mbs == 0)
+ mbs = pa_resampler_max_block_size(o->thread_info.resampler);
+
+ if (qchunk.length > mbs)
+ qchunk.length = mbs;
+
+ pa_resampler_run(o->thread_info.resampler, &qchunk, &rchunk);
+
+ if (rchunk.length > 0)
+ o->push(o, &rchunk);
+
+ pa_memblock_unref(rchunk.memblock);
+ }
+
+ pa_memblock_unref(qchunk.memblock);
+ pa_memblockq_drop(o->thread_info.delay_memblockq, qchunk.length);
+ }
+}
+
+/* Called from thread context */
+void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes /* in sink sample spec */) {
+ pa_source_output_assert_ref(o);
+
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
+ pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
+
+ if (nbytes <= 0)
return;
- pa_assert(rchunk.memblock);
- o->push(o, &rchunk);
- pa_memblock_unref(rchunk.memblock);
+ if (o->process_rewind) {
+ pa_assert(pa_memblockq_get_length(o->thread_info.delay_memblockq) == 0);
+
+ if (o->thread_info.resampler)
+ nbytes = pa_resampler_result(o->thread_info.resampler, nbytes);
+
+ pa_log_debug("Have to rewind %lu bytes on implementor.", (unsigned long) nbytes);
+
+ if (nbytes > 0)
+ o->process_rewind(o, nbytes);
+
+ if (o->thread_info.resampler)
+ pa_resampler_reset(o->thread_info.resampler);
+
+ } else
+ pa_memblockq_rewind(o->thread_info.delay_memblockq, nbytes);
+}
+
+/* Called from thread context */
+void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes /* in the source's sample spec */) {
+ pa_source_output_assert_ref(o);
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
+ pa_assert(pa_frame_aligned(nbytes, &o->source->sample_spec));
+
+ if (o->update_max_rewind)
+ o->update_max_rewind(o, o->thread_info.resampler ? pa_resampler_result(o->thread_info.resampler, nbytes) : nbytes);
+}
+
+static pa_usec_t fixup_latency(pa_source *s, pa_usec_t usec) {
+ pa_source_assert_ref(s);
+
+ if (usec == (pa_usec_t) -1)
+ return usec;
+
+ if (s->max_latency > 0 && usec > s->max_latency)
+ usec = s->max_latency;
+
+ if (s->min_latency > 0 && usec < s->min_latency)
+ usec = s->min_latency;
+
+ return usec;
+}
+
+pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec) {
+ pa_source_output_assert_ref(o);
+
+ usec = fixup_latency(o->source, usec);
+
+ o->thread_info.requested_source_latency = usec;
+ pa_source_invalidate_requested_latency(o->source);
+
+ return usec;
+}
+
+pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t usec) {
+ pa_source_output_assert_ref(o);
+
+ usec = fixup_latency(o->source, usec);
+
+ if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
+ pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, NULL, (int64_t) usec, NULL, NULL);
+ else {
+ /* If this sink input is not realized yet, we have to touch
+ * the thread info data directly */
+ o->thread_info.requested_source_latency = usec;
+ o->source->thread_info.requested_latency_valid = FALSE;
+ }
+
+ return usec;
+}
+
+pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o) {
+ pa_usec_t usec = 0;
+
+ pa_source_output_assert_ref(o);
+
+ if (PA_SOURCE_OUTPUT_IS_LINKED(o->state))
+ pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL);
+ else
+ /* If this sink input is not realized yet, we have to touch
+ * the thread info data directly */
+ usec = o->thread_info.requested_source_latency;
+
+ return usec;
}
void pa_source_output_cork(pa_source_output *o, pa_bool_t b) {
pa_source_output_assert_ref(o);
- pa_assert(PA_SOURCE_OUTPUT_LINKED(o->state));
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
source_output_set_state(o, b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING);
}
int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
pa_source_output_assert_ref(o);
- pa_assert(PA_SOURCE_OUTPUT_LINKED(o->state));
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
pa_return_val_if_fail(o->thread_info.resampler, -1);
if (o->sample_spec.rate == rate)
@@ -375,19 +537,24 @@ int pa_source_output_set_rate(pa_source_output *o, uint32_t rate) {
}
void pa_source_output_set_name(pa_source_output *o, const char *name) {
+ const char *old;
pa_source_output_assert_ref(o);
- if (!o->name && !name)
+ if (!name && !pa_proplist_contains(o->proplist, PA_PROP_MEDIA_NAME))
return;
- if (o->name && name && !strcmp(o->name, name))
+ old = pa_proplist_gets(o->proplist, PA_PROP_MEDIA_NAME);
+
+ if (old && name && !strcmp(old, name))
return;
- pa_xfree(o->name);
- o->name = pa_xstrdup(name);
+ if (name)
+ pa_proplist_sets(o->proplist, PA_PROP_MEDIA_NAME, name);
+ else
+ pa_proplist_unset(o->proplist, PA_PROP_MEDIA_NAME);
- if (PA_SOURCE_OUTPUT_LINKED(o->state)) {
- pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NAME_CHANGED], o);
+ if (PA_SOURCE_OUTPUT_IS_LINKED(o->state)) {
+ pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED], o);
pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
}
}
@@ -400,11 +567,11 @@ pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
int pa_source_output_move_to(pa_source_output *o, pa_source *dest) {
pa_source *origin;
- pa_resampler *new_resampler = NULL;
+ pa_resampler *new_resampler;
pa_source_output_move_hook_data hook_data;
pa_source_output_assert_ref(o);
- pa_assert(PA_SOURCE_OUTPUT_LINKED(o->state));
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
pa_source_assert_ref(dest);
origin = o->source;
@@ -444,7 +611,8 @@ int pa_source_output_move_to(pa_source_output *o, pa_source *dest) {
pa_log_warn("Unsupported resampling operation.");
return -1;
}
- }
+ } else
+ new_resampler = NULL;
hook_data.source_output = o;
hook_data.destination = dest;
@@ -467,13 +635,25 @@ int pa_source_output_move_to(pa_source_output *o, pa_source *dest) {
if (o->thread_info.resampler)
pa_resampler_free(o->thread_info.resampler);
o->thread_info.resampler = new_resampler;
- }
- pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL);
+ pa_memblockq_free(o->thread_info.delay_memblockq);
+
+ o->thread_info.delay_memblockq = pa_memblockq_new(
+ 0,
+ MEMBLOCKQ_MAXLENGTH,
+ 0,
+ pa_frame_size(&o->source->sample_spec),
+ 0,
+ 1,
+ 0,
+ &o->source->silence);
+ }
pa_source_update_status(origin);
pa_source_update_status(dest);
+ pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL);
+
if (o->moved)
o->moved(o);
@@ -487,26 +667,54 @@ int pa_source_output_move_to(pa_source_output *o, pa_source *dest) {
return 0;
}
+void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state) {
+ pa_source_output_assert_ref(o);
+
+ if (state == o->thread_info.state)
+ return;
+
+ if (o->state_change)
+ o->state_change(o, state);
+
+ o->thread_info.state = state;
+}
+
/* Called from thread context */
int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk* chunk) {
pa_source_output *o = PA_SOURCE_OUTPUT(mo);
pa_source_output_assert_ref(o);
- pa_assert(PA_SOURCE_OUTPUT_LINKED(o->thread_info.state));
+ pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->thread_info.state));
switch (code) {
- case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE: {
+ case PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY: {
+ pa_usec_t *r = userdata;
+
+ *r += pa_bytes_to_usec(pa_memblockq_get_length(o->thread_info.delay_memblockq), &o->source->sample_spec);
+ return 0;
+ }
+
+ case PA_SOURCE_OUTPUT_MESSAGE_SET_RATE:
o->thread_info.sample_spec.rate = PA_PTR_TO_UINT(userdata);
pa_resampler_set_output_rate(o->thread_info.resampler, PA_PTR_TO_UINT(userdata));
+ return 0;
+
+ case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE:
+ pa_source_output_set_state_within_thread(o, PA_PTR_TO_UINT(userdata));
+ return 0;
+
+ case PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY:
+
+ pa_source_output_set_requested_latency_within_thread(o, (pa_usec_t) offset);
return 0;
- }
- case PA_SOURCE_OUTPUT_MESSAGE_SET_STATE: {
- o->thread_info.state = PA_PTR_TO_UINT(userdata);
+ case PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY: {
+ pa_usec_t *r = userdata;
+ *r = o->thread_info.requested_source_latency;
return 0;
}
}