pa_assert(PA_REFCNT_VALUE(c) >= 1);
PA_CHECK_VALIDITY_RETURN_NULL(c, ss && pa_sample_spec_valid(ss), PA_ERR_INVALID);
+ PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 12 || (ss->format != PA_SAMPLE_S32LE || ss->format != PA_SAMPLE_S32NE), PA_ERR_NOTSUPPORTED);
PA_CHECK_VALIDITY_RETURN_NULL(c, !map || (pa_channel_map_valid(map) && map->channels == ss->channels), PA_ERR_INVALID);
s = pa_xnew(pa_stream, 1);
s->context = c;
s->mainloop = c->mainloop;
+ s->buffer_attr_not_ready = s->timing_info_not_ready = FALSE;
+
s->read_callback = NULL;
s->read_userdata = NULL;
s->write_callback = NULL;
s->underflow_userdata = NULL;
s->latency_update_callback = NULL;
s->latency_update_userdata = NULL;
+ s->moved_callback = NULL;
+ s->moved_userdata = NULL;
+ s->suspended_callback = NULL;
+ s->suspended_userdata = NULL;
s->direction = PA_STREAM_NODIRECTION;
s->name = pa_xstrdup(name);
s->channel = 0;
s->channel_valid = 0;
s->syncid = c->csyncid++;
- s->device_index = PA_INVALID_INDEX;
+ s->stream_index = PA_INVALID_INDEX;
s->requested_bytes = 0;
s->state = PA_STREAM_UNCONNECTED;
+
+ s->manual_buffer_attr = FALSE;
memset(&s->buffer_attr, 0, sizeof(s->buffer_attr));
+ s->device_index = PA_INVALID_INDEX;
+ s->device_name = NULL;
+ s->suspended = FALSE;
+
s->peek_memchunk.index = 0;
s->peek_memchunk.length = 0;
s->peek_memchunk.memblock = NULL;
pa_memblockq_free(s->record_memblockq);
pa_xfree(s->name);
+ pa_xfree(s->device_name);
pa_xfree(s);
}
PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, PA_INVALID_INDEX);
- return s->device_index;
+ return s->stream_index;
}
void pa_stream_set_state(pa_stream *s, pa_stream_state_t st) {
pa_context_unref(c);
}
+void pa_command_stream_moved(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
+ pa_context *c = userdata;
+ pa_stream *s;
+ uint32_t channel;
+ const char *dn;
+ int suspended;
+ uint32_t di;
+
+ pa_assert(pd);
+ pa_assert(command == PA_COMMAND_PLAYBACK_STREAM_MOVED || command == PA_COMMAND_RECORD_STREAM_MOVED);
+ pa_assert(t);
+ pa_assert(c);
+ pa_assert(PA_REFCNT_VALUE(c) >= 1);
+
+ pa_context_ref(c);
+
+ if (c->version < 12) {
+ pa_context_fail(c, PA_ERR_PROTOCOL);
+ goto finish;
+ }
+
+ if (pa_tagstruct_getu32(t, &channel) < 0 ||
+ pa_tagstruct_getu32(t, &di) < 0 ||
+ pa_tagstruct_gets(t, &dn) < 0 ||
+ pa_tagstruct_get_boolean(t, &suspended) < 0 ||
+ !pa_tagstruct_eof(t)) {
+ pa_context_fail(c, PA_ERR_PROTOCOL);
+ goto finish;
+ }
+
+ if (!dn || di == PA_INVALID_INDEX) {
+ pa_context_fail(c, PA_ERR_PROTOCOL);
+ goto finish;
+ }
+
+ if (!(s = pa_dynarray_get(command == PA_COMMAND_PLAYBACK_STREAM_MOVED ? c->playback_streams : c->record_streams, channel)))
+ goto finish;
+
+ pa_xfree(s->device_name);
+ s->device_name = pa_xstrdup(dn);
+ s->device_index = di;
+
+ s->suspended = suspended;
+
+ if (s->moved_callback)
+ s->moved_callback(s, s->moved_userdata);
+
+finish:
+ pa_context_unref(c);
+}
+
+void pa_command_stream_suspended(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
+ pa_context *c = userdata;
+ pa_stream *s;
+ uint32_t channel;
+ int suspended;
+
+ pa_assert(pd);
+ pa_assert(command == PA_COMMAND_PLAYBACK_STREAM_SUSPENDED || command == PA_COMMAND_RECORD_STREAM_SUSPENDED);
+ pa_assert(t);
+ pa_assert(c);
+ pa_assert(PA_REFCNT_VALUE(c) >= 1);
+
+ pa_context_ref(c);
+
+ if (c->version < 12) {
+ pa_context_fail(c, PA_ERR_PROTOCOL);
+ goto finish;
+ }
+
+ if (pa_tagstruct_getu32(t, &channel) < 0 ||
+ pa_tagstruct_get_boolean(t, &suspended) < 0 ||
+ !pa_tagstruct_eof(t)) {
+ pa_context_fail(c, PA_ERR_PROTOCOL);
+ goto finish;
+ }
+
+ if (!(s = pa_dynarray_get(command == PA_COMMAND_PLAYBACK_STREAM_SUSPENDED ? c->playback_streams : c->record_streams, channel)))
+ goto finish;
+
+ s->suspended = suspended;
+
+ if (s->suspended_callback)
+ s->suspended_callback(s, s->suspended_userdata);
+
+finish:
+ pa_context_unref(c);
+}
+
void pa_command_request(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
pa_stream *s;
pa_context *c = userdata;
pa_assert(PA_REFCNT_VALUE(s) >= 1);
pa_assert(s->state == PA_STREAM_CREATING);
+ if (s->buffer_attr_not_ready || s->timing_info_not_ready)
+ return;
+
pa_stream_set_state(s, PA_STREAM_READY);
if (s->requested_bytes > 0 && s->write_callback)
}
}
+static void automatic_buffer_attr(pa_buffer_attr *attr, pa_sample_spec *ss) {
+ pa_assert(attr);
+ pa_assert(ss);
+
+ attr->tlength = pa_bytes_per_second(ss)/2;
+ attr->maxlength = (attr->tlength*3)/2;
+ attr->minreq = attr->tlength/50;
+ attr->prebuf = attr->tlength - attr->minreq;
+ attr->fragsize = attr->tlength/50;
+}
+
void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
pa_stream *s = userdata;
}
if (pa_tagstruct_getu32(t, &s->channel) < 0 ||
- ((s->direction != PA_STREAM_UPLOAD) && pa_tagstruct_getu32(t, &s->device_index) < 0) ||
+ ((s->direction != PA_STREAM_UPLOAD) && pa_tagstruct_getu32(t, &s->stream_index) < 0) ||
((s->direction != PA_STREAM_RECORD) && pa_tagstruct_getu32(t, &s->requested_bytes) < 0)) {
pa_context_fail(s->context, PA_ERR_PROTOCOL);
goto finish;
}
- if (pa_context_get_server_protocol_version(s->context) >= 9) {
+ if (s->context->version >= 9) {
if (s->direction == PA_STREAM_PLAYBACK) {
if (pa_tagstruct_getu32(t, &s->buffer_attr.maxlength) < 0 ||
pa_tagstruct_getu32(t, &s->buffer_attr.tlength) < 0 ||
}
}
+ if (s->context->version >= 12) {
+ pa_sample_spec ss;
+ pa_channel_map cm;
+ const char *dn = NULL;
+ int suspended;
+
+ if (pa_tagstruct_get_sample_spec(t, &ss) < 0 ||
+ pa_tagstruct_get_channel_map(t, &cm) < 0 ||
+ pa_tagstruct_getu32(t, &s->device_index) < 0 ||
+ pa_tagstruct_gets(t, &dn) < 0 ||
+ pa_tagstruct_get_boolean(t, &suspended) < 0) {
+ pa_context_fail(s->context, PA_ERR_PROTOCOL);
+ goto finish;
+ }
+
+ if (!dn || s->device_index == PA_INVALID_INDEX ||
+ ss.channels != cm.channels ||
+ !pa_channel_map_valid(&cm) ||
+ !pa_sample_spec_valid(&ss) ||
+ (!(s->flags & PA_STREAM_FIX_FORMAT) && ss.format != s->sample_spec.format) ||
+ (!(s->flags & PA_STREAM_FIX_RATE) && ss.rate != s->sample_spec.rate) ||
+ (!(s->flags & PA_STREAM_FIX_CHANNELS) && !pa_channel_map_equal(&cm, &s->channel_map))) {
+ pa_context_fail(s->context, PA_ERR_PROTOCOL);
+ goto finish;
+ }
+
+ pa_xfree(s->device_name);
+ s->device_name = pa_xstrdup(dn);
+ s->suspended = suspended;
+
+ if (!s->manual_buffer_attr && pa_bytes_per_second(&ss) != pa_bytes_per_second(&s->sample_spec)) {
+ pa_buffer_attr attr;
+ pa_operation *o;
+
+ automatic_buffer_attr(&attr, &ss);
+
+ /* If we need to update the buffer metrics, we wait for
+ * the the OK for that call before we go to
+ * PA_STREAM_READY */
+
+ s->state = PA_STREAM_READY;
+ pa_assert_se(o = pa_stream_set_buffer_attr(s, &attr, NULL, NULL));
+ pa_operation_unref(o);
+ s->state = PA_STREAM_CREATING;
+
+ s->buffer_attr_not_ready = TRUE;
+ }
+
+ s->channel_map = cm;
+ s->sample_spec = ss;
+ }
+
if (!pa_tagstruct_eof(t)) {
pa_context_fail(s->context, PA_ERR_PROTOCOL);
goto finish;
pa_dynarray_put((s->direction == PA_STREAM_RECORD) ? s->context->record_streams : s->context->playback_streams, s->channel, s);
if (s->direction != PA_STREAM_UPLOAD && s->flags & PA_STREAM_AUTO_TIMING_UPDATE) {
+
/* If automatic timing updates are active, we wait for the
* first timing update before going to PA_STREAM_READY
* state */
+
s->state = PA_STREAM_READY;
request_auto_timing_update(s, 1);
s->state = PA_STREAM_CREATING;
- } else
- create_stream_complete(s);
+ s->timing_info_not_ready = TRUE;
+ }
+
+ create_stream_complete(s);
finish:
pa_stream_unref(s);
PA_STREAM_START_CORKED|
PA_STREAM_INTERPOLATE_TIMING|
PA_STREAM_NOT_MONOTONOUS|
- PA_STREAM_AUTO_TIMING_UPDATE : 0))), PA_ERR_INVALID);
+ PA_STREAM_AUTO_TIMING_UPDATE|
+ PA_STREAM_NO_REMAP_CHANNELS|
+ PA_STREAM_NO_REMIX_CHANNELS|
+ PA_STREAM_FIX_FORMAT|
+ PA_STREAM_FIX_RATE|
+ PA_STREAM_FIX_CHANNELS|
+ PA_STREAM_DONT_MOVE : 0))), PA_ERR_INVALID);
PA_CHECK_VALIDITY(s->context, !volume || volume->channels == s->sample_spec.channels, PA_ERR_INVALID);
PA_CHECK_VALIDITY(s->context, !sync_stream || (direction == PA_STREAM_PLAYBACK && sync_stream->direction == PA_STREAM_PLAYBACK), PA_ERR_INVALID);
if (sync_stream)
s->syncid = sync_stream->syncid;
- if (attr)
+ if (attr) {
s->buffer_attr = *attr;
- else {
+ s->manual_buffer_attr = TRUE;
+ } else {
/* half a second, with minimum request of 10 ms */
s->buffer_attr.tlength = pa_bytes_per_second(&s->sample_spec)/2;
s->buffer_attr.maxlength = (s->buffer_attr.tlength*3)/2;
s->buffer_attr.minreq = s->buffer_attr.tlength/50;
s->buffer_attr.prebuf = s->buffer_attr.tlength - s->buffer_attr.minreq;
s->buffer_attr.fragsize = s->buffer_attr.tlength/50;
+ s->manual_buffer_attr = FALSE;
}
if (!dev)
} else
pa_tagstruct_putu32(t, s->buffer_attr.fragsize);
+ if (s->context->version >= 12 && s->direction != PA_STREAM_UPLOAD) {
+ pa_tagstruct_put(
+ t,
+ PA_TAG_BOOLEAN, flags & PA_STREAM_NO_REMAP_CHANNELS,
+ PA_TAG_BOOLEAN, flags & PA_STREAM_NO_REMIX_CHANNELS,
+ PA_TAG_BOOLEAN, flags & PA_STREAM_FIX_FORMAT,
+ PA_TAG_BOOLEAN, flags & PA_STREAM_FIX_RATE,
+ PA_TAG_BOOLEAN, flags & PA_STREAM_FIX_CHANNELS,
+ PA_TAG_BOOLEAN, flags & PA_STREAM_DONT_MOVE,
+ PA_TAG_BOOLEAN, flags & PA_STREAM_VARIABLE_RATE,
+ PA_TAG_INVALID);
+ }
+
pa_pstream_send_tagstruct(s->context->pstream, t);
pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_create_stream_callback, s, NULL);
}
/* First, let's complete the initialization, if necessary. */
- if (o->stream->state == PA_STREAM_CREATING)
+ if (o->stream->state == PA_STREAM_CREATING) {
+ o->stream->timing_info_not_ready = FALSE;
create_stream_complete(o->stream);
+ }
if (o->stream->latency_update_callback)
o->stream->latency_update_callback(o->stream, o->stream->latency_update_userdata);
s->latency_update_userdata = userdata;
}
+void pa_stream_set_moved_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) {
+ pa_assert(s);
+ pa_assert(PA_REFCNT_VALUE(s) >= 1);
+
+ s->moved_callback = cb;
+ s->moved_userdata = userdata;
+}
+
+void pa_stream_set_suspended_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) {
+ pa_assert(s);
+ pa_assert(PA_REFCNT_VALUE(s) >= 1);
+
+ s->suspended_callback = cb;
+ s->suspended_userdata = userdata;
+}
+
void pa_stream_simple_ack_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
pa_operation *o = userdata;
int success = 1;
PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
- PA_CHECK_VALIDITY_RETURN_NULL(s->context,
- pa_context_get_server_protocol_version(s->context) >= 9, PA_ERR_NODATA);
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 9, PA_ERR_NODATA);
return &s->buffer_attr;
}
+
+static void stream_set_buffer_attr_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
+ pa_operation *o = userdata;
+ int success = 1;
+
+ pa_assert(pd);
+ pa_assert(o);
+ pa_assert(PA_REFCNT_VALUE(o) >= 1);
+
+ if (!o->context)
+ goto finish;
+
+ if (command != PA_COMMAND_REPLY) {
+ if (pa_context_handle_error(o->context, command, t) < 0)
+ goto finish;
+
+ success = 0;
+ } else {
+
+ if (o->stream->direction == PA_STREAM_PLAYBACK) {
+ if (pa_tagstruct_getu32(t, &o->stream->buffer_attr.maxlength) < 0 ||
+ pa_tagstruct_getu32(t, &o->stream->buffer_attr.tlength) < 0 ||
+ pa_tagstruct_getu32(t, &o->stream->buffer_attr.prebuf) < 0 ||
+ pa_tagstruct_getu32(t, &o->stream->buffer_attr.minreq) < 0) {
+ pa_context_fail(o->context, PA_ERR_PROTOCOL);
+ goto finish;
+ }
+ } else if (o->stream->direction == PA_STREAM_RECORD) {
+ if (pa_tagstruct_getu32(t, &o->stream->buffer_attr.maxlength) < 0 ||
+ pa_tagstruct_getu32(t, &o->stream->buffer_attr.fragsize) < 0) {
+ pa_context_fail(o->context, PA_ERR_PROTOCOL);
+ goto finish;
+ }
+ }
+
+ if (!pa_tagstruct_eof(t)) {
+ pa_context_fail(o->context, PA_ERR_PROTOCOL);
+ goto finish;
+ }
+
+ o->stream->manual_buffer_attr = TRUE;
+ }
+
+ if (o->stream->state == PA_STREAM_CREATING) {
+ o->stream->buffer_attr_not_ready = FALSE;
+ create_stream_complete(o->stream);
+ }
+
+ if (o->callback) {
+ pa_stream_success_cb_t cb = (pa_stream_success_cb_t) o->callback;
+ cb(o->stream, success, o->userdata);
+ }
+
+finish:
+ pa_operation_done(o);
+ pa_operation_unref(o);
+}
+
+
+pa_operation* pa_stream_set_buffer_attr(pa_stream *s, const pa_buffer_attr *attr, pa_stream_success_cb_t cb, void *userdata) {
+ pa_operation *o;
+ pa_tagstruct *t;
+ uint32_t tag;
+
+ pa_assert(s);
+ pa_assert(PA_REFCNT_VALUE(s) >= 1);
+ pa_assert(attr);
+
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED);
+
+ o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata);
+
+ t = pa_tagstruct_command(
+ s->context,
+ s->direction == PA_STREAM_RECORD ? PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR : PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR,
+ &tag);
+ pa_tagstruct_putu32(t, s->channel);
+
+ pa_tagstruct_putu32(t, attr->maxlength);
+
+ if (s->direction == PA_STREAM_PLAYBACK)
+ pa_tagstruct_put(
+ t,
+ PA_TAG_U32, attr->tlength,
+ PA_TAG_U32, attr->prebuf,
+ PA_TAG_U32, attr->minreq,
+ PA_TAG_INVALID);
+ else
+ pa_tagstruct_putu32(t, attr->fragsize);
+
+ pa_pstream_send_tagstruct(s->context->pstream, t);
+ pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_set_buffer_attr_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
+
+ return o;
+}
+
+uint32_t pa_stream_get_device_index(pa_stream *s) {
+ pa_assert(s);
+ pa_assert(PA_REFCNT_VALUE(s) >= 1);
+
+ PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, PA_INVALID_INDEX);
+ PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE, PA_INVALID_INDEX);
+ PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED, PA_INVALID_INDEX);
+ PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->device_index != PA_INVALID_INDEX, PA_ERR_BADSTATE, PA_INVALID_INDEX);
+
+ return s->device_index;
+}
+
+const char *pa_stream_get_device_name(pa_stream *s) {
+ pa_assert(s);
+ pa_assert(PA_REFCNT_VALUE(s) >= 1);
+
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED);
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->device_name, PA_ERR_BADSTATE);
+
+ return s->device_name;
+}
+
+int pa_stream_is_suspended(pa_stream *s) {
+ pa_assert(s);
+ pa_assert(PA_REFCNT_VALUE(s) >= 1);
+
+ PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
+ PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
+ PA_CHECK_VALIDITY(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED);
+
+ return s->suspended;
+}
+
+static void stream_update_sample_rate_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
+ pa_operation *o = userdata;
+ int success = 1;
+
+ pa_assert(pd);
+ pa_assert(o);
+ pa_assert(PA_REFCNT_VALUE(o) >= 1);
+
+ if (!o->context)
+ goto finish;
+
+ if (command != PA_COMMAND_REPLY) {
+ if (pa_context_handle_error(o->context, command, t) < 0)
+ goto finish;
+
+ success = 0;
+ } else {
+
+ if (!pa_tagstruct_eof(t)) {
+ pa_context_fail(o->context, PA_ERR_PROTOCOL);
+ goto finish;
+ }
+ }
+
+ o->stream->sample_spec.rate = PA_PTR_TO_UINT(o->private);
+ pa_assert(pa_sample_spec_valid(&o->stream->sample_spec));
+
+ if (o->callback) {
+ pa_stream_success_cb_t cb = (pa_stream_success_cb_t) o->callback;
+ cb(o->stream, success, o->userdata);
+ }
+
+finish:
+ pa_operation_done(o);
+ pa_operation_unref(o);
+}
+
+
+pa_operation *pa_stream_update_sample_rate(pa_stream *s, uint32_t rate, pa_stream_success_cb_t cb, void *userdata) {
+ pa_operation *o;
+ pa_tagstruct *t;
+ uint32_t tag;
+
+ pa_assert(s);
+ pa_assert(PA_REFCNT_VALUE(s) >= 1);
+
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, rate > 0 && rate <= PA_RATE_MAX, PA_ERR_INVALID);
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE);
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE);
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->flags & PA_STREAM_VARIABLE_RATE, PA_ERR_BADSTATE);
+ PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED);
+
+ o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata);
+ o->private = PA_UINT_TO_PTR(rate);
+
+ t = pa_tagstruct_command(
+ s->context,
+ s->direction == PA_STREAM_RECORD ? PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE : PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE,
+ &tag);
+ pa_tagstruct_putu32(t, s->channel);
+ pa_tagstruct_putu32(t, rate);
+
+ pa_pstream_send_tagstruct(s->context->pstream, t);
+ pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_update_sample_rate_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
+
+ return o;
+
+}