A link is the connection between 2 nodes (Node).  
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A link is the connection between 2 nodes (Node). 
Nodes are linked together on ports.
The link is responsible for negotiating the format and buffers for the nodes. 
◆ pw_link_state
The different link states. 
| Enumerator | 
|---|
| PW_LINK_STATE_ERROR | the link is in error  | 
| PW_LINK_STATE_UNLINKED | the link is unlinked  | 
| PW_LINK_STATE_INIT | the link is initialized  | 
| PW_LINK_STATE_NEGOTIATING | the link is negotiating formats  | 
| PW_LINK_STATE_ALLOCATING | the link is allocating buffers  | 
| PW_LINK_STATE_PAUSED | the link is paused  | 
| PW_LINK_STATE_ACTIVE | the link is active  | 
 
 
◆ PW_TYPE_INTERFACE_Link
◆ PW_LINK_PERM_MASK
◆ PW_VERSION_LINK
      
        
          | #define PW_VERSION_LINK   3 | 
      
 
 
◆ PW_API_LINK_IMPL
      
        
          | #define PW_API_LINK_IMPL   static inline | 
      
 
 
◆ PW_LINK_CHANGE_MASK_STATE
      
        
          | #define PW_LINK_CHANGE_MASK_STATE   (1 << 0) | 
      
 
 
◆ PW_LINK_CHANGE_MASK_FORMAT
      
        
          | #define PW_LINK_CHANGE_MASK_FORMAT   (1 << 1) | 
      
 
 
◆ PW_LINK_CHANGE_MASK_PROPS
      
        
          | #define PW_LINK_CHANGE_MASK_PROPS   (1 << 2) | 
      
 
 
◆ PW_LINK_CHANGE_MASK_ALL
      
        
          | #define PW_LINK_CHANGE_MASK_ALL   ((1 << 3)-1) | 
      
 
 
◆ PW_LINK_EVENT_INFO
      
        
          | #define PW_LINK_EVENT_INFO   0 | 
      
 
 
◆ PW_LINK_EVENT_NUM
      
        
          | #define PW_LINK_EVENT_NUM   1 | 
      
 
 
◆ PW_VERSION_LINK_EVENTS
      
        
          | #define PW_VERSION_LINK_EVENTS   0 | 
      
 
 
◆ PW_LINK_METHOD_ADD_LISTENER
      
        
          | #define PW_LINK_METHOD_ADD_LISTENER   0 | 
      
 
 
◆ PW_LINK_METHOD_NUM
      
        
          | #define PW_LINK_METHOD_NUM   1 | 
      
 
 
◆ PW_VERSION_LINK_METHODS
      
        
          | #define PW_VERSION_LINK_METHODS   0 | 
      
 
 
◆ pw_link_state_as_string()
◆ pw_link_info_update()
◆ pw_link_info_merge()
◆ pw_link_info_free()
◆ pw_link_add_listener()