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node: add finish hook

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Add a finish hook to signal when the graph of a driver node
finished.
This commit is contained in:
Wim Taymans 2018-03-21 09:18:52 +01:00
parent 99d94044d1
commit 76ed4e9468
2 changed files with 20 additions and 1 deletions
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19
src/pipewire/node.c
View file

@ -405,6 +405,23 @@ static void check_properties(struct pw_node *node)
SPA_FLAG_UNSET(impl->driver_graph.flags, SPA_GRAPH_FLAG_DRIVER);
}
static inline int driver_impl_finish(void *data)
{
struct impl *impl = SPA_CONTAINER_OF(data, struct impl, driver_data);
struct spa_graph_data *d = &impl->graph_data;
struct pw_node *this = &impl->this;
pw_log_trace("graph %p finish %p", d->graph, impl);
spa_hook_list_call(&this->listener_list, struct pw_node_events, finish);
return 0;
}
static const struct spa_graph_callbacks driver_impl_default = {
SPA_VERSION_GRAPH_CALLBACKS,
.run = spa_graph_impl_run,
.finish = driver_impl_finish,
};
struct pw_node *pw_node_new(struct pw_core *core,
const char *name,
struct pw_properties *properties,
@ -454,7 +471,7 @@ struct pw_node *pw_node_new(struct pw_core *core,
spa_graph_init(&impl->driver_graph, &impl->driver_state);
spa_graph_data_init(&impl->driver_data, &impl->driver_graph);
spa_graph_set_callbacks(&impl->driver_graph,
&spa_graph_impl_default, &impl->driver_data);
&driver_impl_default, &impl->driver_data);
this->rt.activation = &impl->root_activation;
spa_graph_node_init(&this->rt.root, &this->rt.activation->state);

2
src/pipewire/node.h
View file

@ -87,6 +87,8 @@ struct pw_node_events {
void (*process) (void *data);
/** the node has a buffer to reuse */
void (*reuse_buffer) (void *data, uint32_t port_id, uint32_t buffer_id);
void (*finish) (void *data);
};
/** Automatically connect this node to a compatible node */