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media-session: subscribe to params when needed

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Subscribe to params and collect them.
This commit is contained in:
Wim Taymans 2019-11-19 16:08:40 +01:00
parent 541f3a4cc6
commit b7aa8f5c85
4 changed files with 101 additions and 2 deletions
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9
src/examples/media-session/media-session.h
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@ -53,6 +53,11 @@ struct sm_object {
struct spa_list data;
};
struct sm_param {
uint32_t id;
struct spa_pod *param;
};
/** get user data with \a id and \a size to an object */
void *sm_object_add_data(struct sm_object *obj, const char *id, size_t size);
void *sm_object_get_data(struct sm_object *obj, const char *id);
@ -72,13 +77,17 @@ struct sm_client {
struct sm_node {
struct sm_object obj;
unsigned int subscribe:1; /**< if we subscribed to param changes */
#define SM_NODE_CHANGE_MASK_INFO (1<<0)
#define SM_NODE_CHANGE_MASK_PORTS (1<<1)
#define SM_NODE_CHANGE_MASK_PARAMS (1<<2)
uint32_t mask; /**< monitored info */
uint32_t avail; /**< available info */
uint32_t changed; /**< changed since last update */
struct pw_node_info *info;
struct spa_list port_list;
struct spa_list param_list; /**< list of sm_param */
};
struct sm_port {