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link: implement passive links again

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Check if a driver is only connected to other nodes with passive
links, if that's the case, set the driver and all followers in
IDLE.
This commit is contained in:
Wim Taymans 2020-06-17 12:22:58 +02:00
parent 2a11e66417
commit 16d61e98e8
3 changed files with 16 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

13
src/pipewire/context.c
View file

@ -798,6 +798,7 @@ static int collect_nodes(struct pw_impl_node *driver)
spa_list_init(&queue);
spa_list_append(&queue, &driver->sort_link);
driver->visited = true;
driver->passive = true;
spa_list_consume(n, &queue, sort_link) {
spa_list_remove(&n->sort_link);
@ -806,6 +807,8 @@ static int collect_nodes(struct pw_impl_node *driver)
spa_list_for_each(p, &n->input_ports, link) {
spa_list_for_each(l, &p->links, input_link) {
t = l->output->node;
if (!l->passive)
driver->passive = false;
if (l->prepared && !t->visited && t->active) {
t->visited = true;
spa_list_append(&queue, &t->sort_link);
@ -815,6 +818,8 @@ static int collect_nodes(struct pw_impl_node *driver)
spa_list_for_each(p, &n->output_ports, link) {
spa_list_for_each(l, &p->links, output_link) {
t = l->input->node;
if (!l->passive)
driver->passive = false;
if (l->prepared && !t->visited && t->active) {
t->visited = true;
spa_list_append(&queue, &t->sort_link);
@ -852,7 +857,7 @@ int pw_context_recalc_graph(struct pw_context *context, const char *reason)
/* from now on we are only interested in active master nodes.
* We're going to see if there are active followers. */
if (!n->master || !n->active)
if (!n->master || !n->active || n->passive)
continue;
/* first active master node is fallback */
@ -912,7 +917,7 @@ int pw_context_recalc_graph(struct pw_context *context, const char *reason)
if (s == n)
continue;
if (s->active)
running = true;
running = !n->passive;
if (s->quantum_size > 0) {
if (min_quantum == 0 || s->quantum_size < min_quantum)
min_quantum = s->quantum_size;
@ -935,8 +940,8 @@ int pw_context_recalc_graph(struct pw_context *context, const char *reason)
n->rt.position->clock.duration = quantum;
}
pw_log_debug(NAME" %p: master %p running:%d quantum:%u '%s'", context, n,
running, quantum, n->name);
pw_log_debug(NAME" %p: master %p running:%d passive:%d quantum:%u '%s'", context, n,
running, n->passive, quantum, n->name);
spa_list_for_each(s, &n->follower_list, follower_link) {
if (s == n)

5
src/pipewire/impl-link.c
View file

@ -995,6 +995,7 @@ struct pw_impl_link *pw_context_create_link(struct pw_context *context,
struct impl *impl;
struct pw_impl_link *this;
struct pw_impl_node *input_node, *output_node;
const char *str;
int res;
if (output == input)
@ -1038,6 +1039,10 @@ struct pw_impl_link *pw_context_create_link(struct pw_context *context,
this->output = output;
this->input = input;
/* passive means that this link does not make the nodes active */
if ((str = pw_properties_get(properties, PW_KEY_LINK_PASSIVE)) != NULL)
this->passive = pw_properties_parse_bool(str);
spa_hook_list_init(&this->listener_list);
impl->format_filter = format_filter;

2
src/pipewire/private.h
View file

@ -548,6 +548,7 @@ struct pw_impl_node {
* is selected to drive the graph */
unsigned int visited:1; /**< for sorting */
unsigned int want_driver:1; /**< this node wants to be assigned to a driver */
unsigned int passive:1; /**< driver graph only has passive links */
uint32_t port_user_data_size; /**< extra size for port user data */
@ -753,6 +754,7 @@ struct pw_impl_link {
unsigned int feedback:1;
unsigned int preparing:1;
unsigned int prepared:1;
unsigned int passive:1;
};
#define pw_resource_emit(o,m,v,...) spa_hook_list_call(&o->listener_list, struct pw_resource_events, m, v, ##__VA_ARGS__)