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port: handle control only ports

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Mark ports with only control io as control ports and skip negotiation
of buffers and format for them.
This commit is contained in:
Wim Taymans 2018-09-28 17:55:01 +02:00
parent 909abdb6bf
commit 18408dad81
4 changed files with 62 additions and 30 deletions
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15
src/pipewire/private.h
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@ -385,15 +385,21 @@ struct pw_port_implementation {
#define pw_port_events_control_added(p,c) pw_port_events_emit(p, control_added, 0, c)
#define pw_port_events_control_removed(p,c) pw_port_events_emit(p, control_removed, 0, c)
#define PW_PORT_IS_CONTROL(port) SPA_FLAG_MASK(port->flags, \
PW_PORT_FLAG_BUFFERS|PW_PORT_FLAG_CONTROL,\
PW_PORT_FLAG_CONTROL)
struct pw_port {
struct spa_list link; /**< link in node port_list */
struct pw_node *node; /**< owner node */
struct pw_global *global; /**< global for this port */
struct spa_hook global_listener;
bool registered;
bool to_remove; /**< if the port should be removed from the
* implementation when destroyed */
#define PW_PORT_FLAG_TO_REMOVE (1<<0) /**< if the port should be removed from the
* implementation when destroyed */
#define PW_PORT_FLAG_BUFFERS (1<<1) /**< port has data */
#define PW_PORT_FLAG_CONTROL (1<<2) /**< port has control */
uint32_t flags;
enum pw_direction direction; /**< port direction */
uint32_t port_id; /**< port id */
@ -616,7 +622,6 @@ struct pw_control {
struct spa_list port_link; /**< link in port control_list */
enum spa_direction direction; /**< the direction */
struct spa_pod *param; /**< control params */
struct pw_control *output; /**< pointer to linked output control */
@ -757,7 +762,7 @@ int pw_link_deactivate(struct pw_link *link);
struct pw_control *
pw_control_new(struct pw_core *core,
struct pw_port *owner, /**< can be NULL */
const struct spa_pod *param, /**< copy is taken */
uint32_t id, uint32_t size,
size_t user_data_size /**< extra user data */);
void pw_control_destroy(struct pw_control *control);