diff --git a/src/context.c b/src/context.c
index 9d5335fce..7f51123be 100644
--- a/src/context.c
+++ b/src/context.c
@@ -662,7 +662,6 @@ pa_operation* pa_context_set_name(pa_context *c, const char *name, pa_context_su
 
 	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_data));
 	d = o->userdata;
-	d->ret = PA_ERR_ACCESS;
 	d->cb = cb;
 	d->userdata = userdata;
 	pa_operation_sync(o);
@@ -700,14 +699,45 @@ uint32_t pa_context_get_server_protocol_version(pa_context *c)
 
 pa_operation *pa_context_proplist_update(pa_context *c, pa_update_mode_t mode, pa_proplist *p, pa_context_success_cb_t cb, void *userdata)
 {
-	pw_log_warn("Not Implemented");
-	return NULL;
+	pa_operation *o;
+	struct success_data *d;
+
+	spa_assert(c);
+	spa_assert(c->refcount >= 1);
+
+	PA_CHECK_VALIDITY_RETURN_NULL(c, mode == PA_UPDATE_SET ||
+			mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE, PA_ERR_INVALID);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
+
+	pa_proplist_update(c->proplist, mode, p);
+
+	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_data));
+	d = o->userdata;
+	d->cb = cb;
+	d->userdata = userdata;
+	pa_operation_sync(o);
+	return o;
 }
 
 pa_operation *pa_context_proplist_remove(pa_context *c, const char *const keys[], pa_context_success_cb_t cb, void *userdata)
 {
+	pa_operation *o;
+	struct success_data *d;
+
+	spa_assert(c);
+	spa_assert(c->refcount >= 1);
+
+	PA_CHECK_VALIDITY_RETURN_NULL(c, keys && keys[0], PA_ERR_INVALID);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
+
 	pw_log_warn("Not Implemented");
-	return NULL;
+
+	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_data));
+	d = o->userdata;
+	d->cb = cb;
+	d->userdata = userdata;
+	pa_operation_sync(o);
+	return o;
 }
 
 uint32_t pa_context_get_index(pa_context *c)
@@ -749,12 +779,19 @@ void pa_context_rttime_restart(pa_context *c, pa_time_event *e, pa_usec_t usec)
 
 size_t pa_context_get_tile_size(pa_context *c, const pa_sample_spec *ss)
 {
-	pw_log_warn("Not Implemented");
-	return 1024;
+	size_t fs, mbs;
+
+	pa_assert(c);
+	pa_assert(c->refcount >= 1);
+
+	PA_CHECK_VALIDITY_RETURN_ANY(c, !ss || pa_sample_spec_valid(ss), PA_ERR_INVALID, (size_t) -1);
+
+	fs = ss ? pa_frame_size(ss) : 1;
+	mbs = PA_ROUND_DOWN(4096, fs);
+	return PA_MAX(mbs, fs);
 }
 
 int pa_context_load_cookie_from_file(pa_context *c, const char *cookie_file_path)
 {
-	pw_log_warn("Not Implemented");
-	return -ENOTSUP;
+	return 0;
 }
diff --git a/src/internal.h b/src/internal.h
index ab99ec20e..9e24df761 100644
--- a/src/internal.h
+++ b/src/internal.h
@@ -81,6 +81,17 @@ extern "C" {
 #define PA_CLAMP_UNLIKELY(x, low, high) (PA_UNLIKELY((x) > (high)) ? (high) : (PA_UNLIKELY((x) < (low)) ? (low) : (x)))
 #endif
 
+#ifdef __GNUC__
+#define PA_ROUND_DOWN(a, b)				\
+	__extension__ ({				\
+		typeof(a) _a = (a);			\
+		typeof(b) _b = (b);			\
+		(_a / _b) * _b;				\
+	})
+#else
+#define PA_ROUND_DOWN(a, b) (((a) / (b)) * (b))
+#endif
+
 
 #define pa_init_i18n()
 #define _(String)		(String)
diff --git a/src/introspect.c b/src/introspect.c
index 75279239d..63c411586 100644
--- a/src/introspect.c
+++ b/src/introspect.c
@@ -478,28 +478,152 @@ pa_operation* pa_context_get_sink_info_list(pa_context *c, pa_sink_info_cb_t cb,
 	return o;
 }
 
+static void set_node_volume(pa_context *c, struct global *g, const pa_cvolume *volume)
+{
+	char buf[1024];
+	struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buf, sizeof(buf));
+	float v;
+
+	v = pa_cvolume_avg(volume) / (float) PA_VOLUME_NORM;
+
+	ensure_global(c, g);
+
+	pw_node_proxy_set_param((struct pw_node_proxy*)g->proxy,
+		SPA_PARAM_Props, 0,
+		spa_pod_builder_object(&b,
+			SPA_TYPE_OBJECT_Props,	SPA_PARAM_Props,
+			SPA_PROP_volume,	&SPA_POD_Float(v),
+			0));
+}
+
+static void set_node_mute(pa_context *c, struct global *g, bool mute)
+{
+	char buf[1024];
+	struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buf, sizeof(buf));
+
+	ensure_global(c, g);
+
+	pw_node_proxy_set_param((struct pw_node_proxy*)g->proxy,
+		SPA_PARAM_Props, 0,
+		spa_pod_builder_object(&b,
+			SPA_TYPE_OBJECT_Props,	SPA_PARAM_Props,
+			SPA_PROP_mute,		&SPA_POD_Bool(mute),
+			0));
+}
+
+
 pa_operation* pa_context_set_sink_volume_by_index(pa_context *c, uint32_t idx, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata)
 {
-	pw_log_warn("Not Implemented %d", idx);
-	return NULL;
+	pa_operation *o;
+	struct global *g;
+	struct success_ack *d;
+
+	pa_assert(c);
+	pa_assert(c->refcount >= 1);
+
+	pw_log_debug("context %p: index %d", c, idx);
+
+	PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, pa_cvolume_valid(volume), PA_ERR_INVALID);
+
+	if ((g = pa_context_find_global(c, idx)) == NULL)
+		return NULL;
+	if (!(g->mask & PA_SUBSCRIPTION_MASK_SINK))
+		return NULL;
+
+	set_node_volume(c, g, volume);
+
+	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
+	d = o->userdata;
+	d->cb = cb;
+	d->userdata = userdata;
+	pa_operation_sync(o);
+	return o;
 }
 
 pa_operation* pa_context_set_sink_volume_by_name(pa_context *c, const char *name, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata)
 {
-	pw_log_warn("Not Implemented %s", name);
-	return NULL;
+	pa_operation *o;
+	struct global *g;
+	struct success_ack *d;
+
+	pa_assert(c);
+	pa_assert(c->refcount >= 1);
+
+	PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, !name || *name, PA_ERR_INVALID);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, pa_cvolume_valid(volume), PA_ERR_INVALID);
+
+	pw_log_debug("context %p: name %s", c, name);
+
+	if ((g = pa_context_find_global_by_name(c, PA_SUBSCRIPTION_MASK_SINK, name)) == NULL)
+		return NULL;
+
+	set_node_volume(c, g, volume);
+
+	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
+	d = o->userdata;
+	d->cb = cb;
+	d->userdata = userdata;
+	pa_operation_sync(o);
+	return o;
 }
 
 pa_operation* pa_context_set_sink_mute_by_index(pa_context *c, uint32_t idx, int mute, pa_context_success_cb_t cb, void *userdata)
 {
-	pw_log_warn("Not Implemented %d", mute);
-	return NULL;
+	pa_operation *o;
+	struct global *g;
+	struct success_ack *d;
+
+	pa_assert(c);
+	pa_assert(c->refcount >= 1);
+
+	PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
+
+	pw_log_debug("context %p: index %d", c, idx);
+
+	if ((g = pa_context_find_global(c, idx)) == NULL)
+		return NULL;
+	if (!(g->mask & PA_SUBSCRIPTION_MASK_SINK))
+		return NULL;
+
+	set_node_mute(c, g, mute);
+
+	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
+	d = o->userdata;
+	d->cb = cb;
+	d->userdata = userdata;
+	pa_operation_sync(o);
+	return o;
 }
 
 pa_operation* pa_context_set_sink_mute_by_name(pa_context *c, const char *name, int mute, pa_context_success_cb_t cb, void *userdata)
 {
-	pw_log_warn("Not Implemented %s", name);
-	return NULL;
+	pa_operation *o;
+	struct global *g;
+	struct success_ack *d;
+
+	pa_assert(c);
+	pa_assert(c->refcount >= 1);
+
+	PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, !name || *name, PA_ERR_INVALID);
+
+	pw_log_debug("context %p: name %s", c, name);
+
+	if ((g = pa_context_find_global_by_name(c, PA_SUBSCRIPTION_MASK_SINK, name)) == NULL)
+		return NULL;
+
+	set_node_mute(c, g, mute);
+
+	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
+	d = o->userdata;
+	d->cb = cb;
+	d->userdata = userdata;
+	pa_operation_sync(o);
+	return o;
 }
 
 pa_operation* pa_context_suspend_sink_by_name(pa_context *c, const char *sink_name, int suspend, pa_context_success_cb_t cb, void* userdata)
@@ -709,26 +833,116 @@ pa_operation* pa_context_get_source_info_list(pa_context *c, pa_source_info_cb_t
 
 pa_operation* pa_context_set_source_volume_by_index(pa_context *c, uint32_t idx, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata)
 {
-	pw_log_warn("Not Implemented");
-	return NULL;
+	pa_operation *o;
+	struct global *g;
+	struct success_ack *d;
+
+	pa_assert(c);
+	pa_assert(c->refcount >= 1);
+
+	pw_log_debug("context %p: index %d", c, idx);
+
+	PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, pa_cvolume_valid(volume), PA_ERR_INVALID);
+
+	if ((g = pa_context_find_global(c, idx)) == NULL)
+		return NULL;
+	if (!(g->mask & PA_SUBSCRIPTION_MASK_SOURCE))
+		return NULL;
+
+	set_node_volume(c, g, volume);
+
+	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
+	d = o->userdata;
+	d->cb = cb;
+	d->userdata = userdata;
+	pa_operation_sync(o);
+	return o;
 }
 
 pa_operation* pa_context_set_source_volume_by_name(pa_context *c, const char *name, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata)
 {
-	pw_log_warn("Not Implemented");
-	return NULL;
+	pa_operation *o;
+	struct global *g;
+	struct success_ack *d;
+
+	pa_assert(c);
+	pa_assert(c->refcount >= 1);
+
+	PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, !name || *name, PA_ERR_INVALID);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, pa_cvolume_valid(volume), PA_ERR_INVALID);
+
+	pw_log_debug("context %p: name %s", c, name);
+
+	if ((g = pa_context_find_global_by_name(c, PA_SUBSCRIPTION_MASK_SOURCE, name)) == NULL)
+		return NULL;
+
+	set_node_volume(c, g, volume);
+
+	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
+	d = o->userdata;
+	d->cb = cb;
+	d->userdata = userdata;
+	pa_operation_sync(o);
+	return o;
 }
 
 pa_operation* pa_context_set_source_mute_by_index(pa_context *c, uint32_t idx, int mute, pa_context_success_cb_t cb, void *userdata)
 {
-	pw_log_warn("Not Implemented");
-	return NULL;
+	pa_operation *o;
+	struct global *g;
+	struct success_ack *d;
+
+	pa_assert(c);
+	pa_assert(c->refcount >= 1);
+
+	PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
+
+	pw_log_debug("context %p: index %d", c, idx);
+
+	if ((g = pa_context_find_global(c, idx)) == NULL)
+		return NULL;
+	if (!(g->mask & PA_SUBSCRIPTION_MASK_SOURCE))
+		return NULL;
+
+	set_node_mute(c, g, mute);
+
+	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
+	d = o->userdata;
+	d->cb = cb;
+	d->userdata = userdata;
+	pa_operation_sync(o);
+	return o;
 }
 
 pa_operation* pa_context_set_source_mute_by_name(pa_context *c, const char *name, int mute, pa_context_success_cb_t cb, void *userdata)
 {
-	pw_log_warn("Not Implemented");
-	return NULL;
+	pa_operation *o;
+	struct global *g;
+	struct success_ack *d;
+
+	pa_assert(c);
+	pa_assert(c->refcount >= 1);
+
+	PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
+	PA_CHECK_VALIDITY_RETURN_NULL(c, !name || *name, PA_ERR_INVALID);
+
+	pw_log_debug("context %p: name %s", c, name);
+
+	if ((g = pa_context_find_global_by_name(c, PA_SUBSCRIPTION_MASK_SOURCE, name)) == NULL)
+		return NULL;
+
+	set_node_mute(c, g, mute);
+
+	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
+	d = o->userdata;
+	d->cb = cb;
+	d->userdata = userdata;
+	pa_operation_sync(o);
+	return o;
 }
 
 pa_operation* pa_context_suspend_source_by_name(pa_context *c, const char *source_name, int suspend, pa_context_success_cb_t cb, void* userdata)
@@ -1489,11 +1703,8 @@ pa_operation* pa_context_set_sink_input_volume(pa_context *c, uint32_t idx, cons
 	struct global *g;
 	pa_operation *o;
 	struct success_ack *d;
-	float v;
 
-	v = pa_cvolume_avg(volume) / (float) PA_VOLUME_NORM;
-
-	pw_log_debug("contex %p: index %d volume %f", c, idx, v);
+	pw_log_debug("contex %p: index %d", c, idx);
 
 	if ((s = find_stream(c, idx)) == NULL) {
 		if ((g = pa_context_find_global(c, idx)) == NULL)
@@ -1503,19 +1714,11 @@ pa_operation* pa_context_set_sink_input_volume(pa_context *c, uint32_t idx, cons
 	}
 
 	if (s) {
-		s->volume = v;
+		s->volume = pa_cvolume_avg(volume) / (float) PA_VOLUME_NORM;
 		pw_stream_set_control(s->stream, PW_STREAM_CONTROL_VOLUME, s->mute ? 0.0 : s->volume);
 	}
 	else if (g) {
-		char buf[1024];
-		struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buf, sizeof(buf));
-
-		pw_node_proxy_set_param((struct pw_node_proxy*)g->proxy,
-			SPA_PARAM_Props, 0,
-			spa_pod_builder_object(&b,
-				SPA_TYPE_OBJECT_Props,	SPA_PARAM_Props,
-				SPA_PROP_volume,	&SPA_POD_Float(v),
-				0));
+		set_node_volume(c, g, volume);
 	}
 	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
 	d = o->userdata;
@@ -1545,15 +1748,7 @@ pa_operation* pa_context_set_sink_input_mute(pa_context *c, uint32_t idx, int mu
 		pw_stream_set_control(s->stream, PW_STREAM_CONTROL_VOLUME, s->mute ? 0.0 : s->volume);
 	}
 	else if (g) {
-		char buf[1024];
-		struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buf, sizeof(buf));
-
-		pw_node_proxy_set_param((struct pw_node_proxy*)g->proxy,
-			SPA_PARAM_Props, 0,
-			spa_pod_builder_object(&b,
-				SPA_TYPE_OBJECT_Props,	SPA_PARAM_Props,
-				SPA_PROP_mute,		&SPA_POD_Bool(mute),
-				0));
+		set_node_mute(c, g, mute);
 	}
 	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
 	d = o->userdata;
@@ -1769,11 +1964,8 @@ pa_operation* pa_context_set_source_output_volume(pa_context *c, uint32_t idx, c
 	struct global *g;
 	pa_operation *o;
 	struct success_ack *d;
-	float v;
 
-	v = pa_cvolume_avg(volume) / (float) PA_VOLUME_NORM;
-
-	pw_log_debug("contex %p: index %d volume %f", c, idx, v);
+	pw_log_debug("contex %p: index %d", c, idx);
 
 	if ((s = find_stream(c, idx)) == NULL) {
 		if ((g = pa_context_find_global(c, idx)) == NULL)
@@ -1783,19 +1975,11 @@ pa_operation* pa_context_set_source_output_volume(pa_context *c, uint32_t idx, c
 	}
 
 	if (s) {
-		s->volume = v;
+		s->volume = pa_cvolume_avg(volume) / (float) PA_VOLUME_NORM;
 		pw_stream_set_control(s->stream, PW_STREAM_CONTROL_VOLUME, s->mute ? 0.0 : s->volume);
 	}
 	else if (g) {
-		char buf[1024];
-		struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buf, sizeof(buf));
-
-		pw_node_proxy_set_param((struct pw_node_proxy*)g->proxy,
-			SPA_PARAM_Props, 0,
-			spa_pod_builder_object(&b,
-				SPA_TYPE_OBJECT_Props,	SPA_PARAM_Props,
-				SPA_PROP_volume,	&SPA_POD_Float(v),
-				0));
+		set_node_volume(c, g, volume);
 	}
 	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
 	d = o->userdata;
@@ -1825,15 +2009,7 @@ pa_operation* pa_context_set_source_output_mute(pa_context *c, uint32_t idx, int
 		pw_stream_set_control(s->stream, PW_STREAM_CONTROL_VOLUME, s->mute ? 0.0 : s->volume);
 	}
 	else if (g) {
-		char buf[1024];
-		struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buf, sizeof(buf));
-
-		pw_node_proxy_set_param((struct pw_node_proxy*)g->proxy,
-			SPA_PARAM_Props, 0,
-			spa_pod_builder_object(&b,
-				SPA_TYPE_OBJECT_Props,	SPA_PARAM_Props,
-				SPA_PROP_mute,		&SPA_POD_Bool(mute),
-				0));
+		set_node_mute(c, g, mute);
 	}
 	o = pa_operation_new(c, NULL, on_success, sizeof(struct success_ack));
 	d = o->userdata;
diff --git a/src/stream.c b/src/stream.c
index ef74f3fa0..073828b53 100644
--- a/src/stream.c
+++ b/src/stream.c
@@ -1733,7 +1733,6 @@ pa_operation *pa_stream_proplist_update(pa_stream *s, pa_update_mode_t mode, pa_
 {
 	pa_operation *o;
 	struct success_ack *d;
-	char *str;
 
 	spa_assert(s);
 	spa_assert(s->refcount >= 1);
@@ -1743,9 +1742,7 @@ pa_operation *pa_stream_proplist_update(pa_stream *s, pa_update_mode_t mode, pa_
 	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);
 
-	str = pa_proplist_to_string(p);
-	pw_log_warn("Not Implemented %s", str);
-	free(str);
+	pa_proplist_update(s->proplist, mode, p);
 
 	o = pa_operation_new(s->context, s, on_success, sizeof(struct success_ack));
 	d = o->userdata;