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Simplify node activation

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Don't directly expose the state change methods. Only expose an activate
method for nodes that indicates if the node should be scheduled or not.
Let the link automatically negotiate two active nodes.
Make some defines for properties.
Use link property to make passive links. Passive links don't activate
the nodes.
Make sure the mainloop quits when quit is called before run.
This commit is contained in:
Wim Taymans 2017-09-18 20:37:00 +02:00
parent 304a6d1796
commit 93a52f4837
32 changed files with 181 additions and 86 deletions
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14
src/pipewire/node.h
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@ -86,6 +86,11 @@ struct pw_node_events {
void (*reuse_buffer) (void *data, uint32_t port_id, uint32_t buffer_id);
};
/** Automatically connect this node to a compatible node */
#define PW_NODE_PROP_AUTOCONNECT "pipewire.autoconnect"
/** Try to connect the node to this node id */
#define PW_NODE_PROP_TARGET_NODE "pipewire.target.node"
/** Create a new node \memberof pw_node */
struct pw_node *
pw_node_new(struct pw_core *core, /**< the core */
@ -148,11 +153,12 @@ uint32_t pw_node_get_free_port_id(struct pw_node *node, enum pw_direction direct
* or a new port */
struct pw_port * pw_node_get_free_port(struct pw_node *node, enum pw_direction direction);
/** Change the state of the node */
int pw_node_set_state(struct pw_node *node, enum pw_node_state state);
/** Set a node active. This will start negotiation with all linked active
* nodes and start data transport */
bool pw_node_set_active(struct pw_node *node, bool active);
/** Update the state of the node, mostly used by node implementations */
void pw_node_update_state(struct pw_node *node, enum pw_node_state state, char *error);
/** Check is a node is active */
bool pw_node_is_active(struct pw_node *node);
#ifdef __cplusplus
}