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filter-graph: pass context to plugins

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Make it possible to pass context to plugins and nodes in the
filter-chain.

We can use this to make filters aware of the graph clock or
latency, for example.
This commit is contained in:
Wim Taymans 2026-06-04 16:53:03 +02:00
parent aa075c2a12
commit 5e521d3532
10 changed files with 48 additions and 17 deletions
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14
spa/include/spa/filter-graph/filter-graph.h
View file

@ -52,6 +52,12 @@ struct spa_filter_graph_info {
struct spa_dict *props;
};
struct spa_filter_graph_ctx {
const char *type;
void *data;
size_t size;
};
struct spa_filter_graph_events {
#define SPA_VERSION_FILTER_GRAPH_EVENTS 0
uint32_t version;
@ -77,7 +83,8 @@ struct spa_filter_graph_methods {
int (*get_props) (void *object, struct spa_pod_builder *b, struct spa_pod **props);
int (*set_props) (void *object, enum spa_direction direction, const struct spa_pod *props);
int (*activate) (void *object, const struct spa_dict *props);
int (*activate) (void *object, const struct spa_dict *props,
uint32_t n_ctx, const struct spa_filter_graph_ctx ctx[]);
int (*deactivate) (void *object);
int (*reset) (void *object);
@ -114,10 +121,11 @@ SPA_API_FILTER_GRAPH int spa_filter_graph_set_props(struct spa_filter_graph *obj
spa_filter_graph, &object->iface, set_props, 0, direction, props);
}
SPA_API_FILTER_GRAPH int spa_filter_graph_activate(struct spa_filter_graph *object, const struct spa_dict *props)
SPA_API_FILTER_GRAPH int spa_filter_graph_activate(struct spa_filter_graph *object,
const struct spa_dict *props, uint32_t n_ctx, const struct spa_filter_graph_ctx ctx[])
{
return spa_api_method_r(int, -ENOTSUP,
spa_filter_graph, &object->iface, activate, 0, props);
spa_filter_graph, &object->iface, activate, 0, props, n_ctx, ctx);
}
SPA_API_FILTER_GRAPH int spa_filter_graph_deactivate(struct spa_filter_graph *object)
{