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control: make control links many to many

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Output controls can be linked to many input controls and many input
controls can receive input from many output controls. Keep the control
link information inside the link.
This commit is contained in:
Wim Taymans 2019-03-14 12:04:20 +01:00
parent 7b3e7e2813
commit 24117b33c7
8 changed files with 131 additions and 106 deletions
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26
src/pipewire/private.h
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@ -510,6 +510,16 @@ struct pw_port {
void *user_data; /**< extra user data */
};
struct pw_control_link {
struct spa_list out_link;
struct spa_list in_link;
struct pw_control *output;
struct pw_control *input;
uint32_t out_port;
uint32_t in_port;
int valid:1;
};
#define pw_link_emit(o,m,v,...) spa_hook_list_call(&o->listener_list, struct pw_link_events, m, v, ##__VA_ARGS__)
#define pw_link_emit_destroy(l) pw_link_emit(l, destroy, 0)
#define pw_link_emit_free(l) pw_link_emit(l, free, 0)
@ -535,6 +545,9 @@ struct pw_link {
struct spa_hook_list listener_list;
struct pw_control_link control;
struct pw_control_link notify;
struct {
struct pw_port_mix out_mix; /**< port added to the output mixer */
struct pw_port_mix in_mix; /**< port added to the input mixer */
@ -690,11 +703,7 @@ struct pw_control {
struct spa_list port_link; /**< link in port control_list */
enum spa_direction direction; /**< the direction */
struct pw_control *output; /**< pointer to linked output control */
struct spa_list inputs; /**< list of linked input controls */
struct spa_list inputs_link; /**< link in linked input control */
struct spa_list links; /**< list of pw_control_link */
uint32_t id;
int32_t size;
@ -704,7 +713,6 @@ struct pw_control {
void *user_data;
};
/** Find a good format between 2 ports */
int pw_core_find_format(struct pw_core *core,
struct pw_port *output,
@ -835,6 +843,12 @@ pw_control_new(struct pw_core *core,
uint32_t id, uint32_t size,
size_t user_data_size /**< extra user data */);
int pw_control_add_link(struct pw_control *control, uint32_t cmix,
struct pw_control *other, uint32_t omix,
struct pw_control_link *link);
int pw_control_remove_link(struct pw_control_link *link);
void pw_control_destroy(struct pw_control *control);
/** \endcond */