mirror of https://code.videolan.org/videolan/vlc
playlist/services_discovery.c: Improved services_discovery object, playlist independant. Now, the services_discovery plugin have to be converted to use this interface.
This commit is contained in:
Pierre d'Herbemont
parent
1479b91804
commit
3d4efe3b67
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@ -112,6 +112,10 @@ typedef enum vlc_event_type_t {
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/* Input item events */
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vlc_InputItemMetaChanged,
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vlc_InputItemSubItemAdded,
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/* Service Discovery event */
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vlc_ServicesDiscoveryItemAdded,
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vlc_ServicesDiscoveryItemRemoved
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} vlc_event_type_t;
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/* Event definition */
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@ -130,6 +134,18 @@ typedef struct vlc_event_t
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{
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input_item_t * p_new_child;
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} input_item_subitem_added;
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/* Service discovery events */
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struct vlc_services_discovery_item_added
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{
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input_item_t * p_new_item;
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const char * psz_category;
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} services_discovery_item_added;
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struct vlc_services_discovery_item_removed
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{
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input_item_t * p_item;
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} services_discovery_item_removed;
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} u;
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} vlc_event_t;
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@ -34,6 +34,7 @@ extern "C" {
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#include <assert.h>
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#include <vlc_input.h>
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#include <vlc_events.h>
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#include <stdio.h>
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#include <stdlib.h>
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@ -161,9 +162,11 @@ typedef enum
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struct services_discovery_t
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{
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VLC_COMMON_MEMBERS
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char *psz_module;
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char * psz_module;
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module_t * p_module;
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module_t *p_module;
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char * psz_localized_name; /* Accessed through Setters for non class function */
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vlc_event_manager_t event_manager; /* Accessed through Setters for non class function */
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services_discovery_sys_t *p_sys;
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void (*pf_run) ( services_discovery_t *);
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@ -409,6 +412,31 @@ VLC_EXPORT( playlist_item_t *, playlist_GetNextLeaf, ( playlist_t *p_playlist, p
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VLC_EXPORT( playlist_item_t *, playlist_GetPrevLeaf, ( playlist_t *p_playlist, playlist_item_t *p_root, playlist_item_t *p_item, vlc_bool_t b_ena, vlc_bool_t b_unplayed ) );
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VLC_EXPORT( playlist_item_t *, playlist_GetLastLeaf, ( playlist_t *p_playlist, playlist_item_t *p_root ) );
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/***********************************************************************
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* Service Discovery
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***********************************************************************/
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/* XXX: no need to inline */
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/* XXX: no need to inline */
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/* Return the number of services_discovery available */
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/* Creation of a service_discovery object */
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VLC_EXPORT( services_discovery_t *, services_discovery_Create, ( vlc_object_t * p_super, const char * psz_service_name ) );
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VLC_EXPORT( void, services_discovery_Destroy, ( services_discovery_t * p_this ) );
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VLC_EXPORT( int, services_discovery_Start, ( services_discovery_t * p_this ) );
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/* Read info from discovery object */
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VLC_EXPORT( const char *, services_discovery_GetLocalizedName, ( services_discovery_t * p_this ) );
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/* Receive event notification (prefered way to get new items) */
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VLC_EXPORT( vlc_event_manager_t *, services_discovery_EventManager, ( services_discovery_t * p_this ) );
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/* Used by services_discovery to post update about their items */
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VLC_EXPORT( void, services_discovery_SetLocalizedName, ( services_discovery_t * p_this, const char * ) );
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/* About the psz_category, it is a legacy way to add info to the item,
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* for more options, directly set the (meta) data on the input item */
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VLC_EXPORT( void, services_discovery_AddItem, ( services_discovery_t * p_this, input_item_t * p_item, const char * psz_category ) );
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VLC_EXPORT( void, services_discovery_RemoveItem, ( services_discovery_t * p_this, input_item_t * p_item ) );
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/***********************************************************************
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* Inline functions
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***********************************************************************/
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@ -22,10 +22,192 @@
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*****************************************************************************/
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#include <vlc/vlc.h>
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#include "vlc_playlist.h"
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#include "vlc_events.h"
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#include "playlist_internal.h"
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static void RunSD( services_discovery_t *p_sd );
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/*
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* Services discovery
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* Basically you just listen to Service discovery event through the
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* sd's event manager.
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* That's how the playlist get's Service Discovery information
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*/
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/***********************************************************************
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* Create
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***********************************************************************/
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services_discovery_t *
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services_discovery_Create ( vlc_object_t * p_super, const char * psz_module_name )
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{
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services_discovery_t *p_sd = vlc_object_create( p_super, VLC_OBJECT_SD );
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if( !p_sd )
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return NULL;
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p_sd->pf_run = NULL;
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p_sd->psz_localized_name = NULL;
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vlc_event_manager_init( &p_sd->event_manager, p_sd, (vlc_object_t *)p_sd );
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vlc_event_manager_register_event_type( &p_sd->event_manager,
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vlc_ServicesDiscoveryItemAdded );
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vlc_event_manager_register_event_type( &p_sd->event_manager,
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vlc_ServicesDiscoveryItemRemoved );
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p_sd->p_module = module_Need( p_sd, "services_discovery", psz_module_name, 0 );
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if( p_sd->p_module == NULL )
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{
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msg_Err( p_super, "no suitable services discovery module" );
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vlc_object_destroy( p_sd );
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return NULL;
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}
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p_sd->psz_module = strdup( psz_module_name );
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p_sd->b_die = VLC_FALSE; /* FIXME */
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return p_sd;
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}
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/***********************************************************************
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* Destroy
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***********************************************************************/
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void services_discovery_Destroy ( services_discovery_t * p_sd )
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{
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vlc_object_kill( p_sd );
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if( p_sd->pf_run ) vlc_thread_join( p_sd );
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free( p_sd->psz_module );
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module_Unneed( p_sd, p_sd->p_module );
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vlc_event_manager_fini( &p_sd->event_manager );
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free( p_sd->psz_localized_name );
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vlc_object_destroy( p_sd );
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}
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/***********************************************************************
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* Start
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***********************************************************************/
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int services_discovery_Start ( services_discovery_t * p_sd )
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{
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if ((p_sd->pf_run != NULL)
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&& vlc_thread_create( p_sd, "services_discovery", RunSD,
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VLC_THREAD_PRIORITY_LOW, VLC_FALSE))
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{
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msg_Err( p_sd, "cannot create services discovery thread" );
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vlc_object_destroy( p_sd );
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return VLC_EGENERIC;
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}
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return VLC_SUCCESS;
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}
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/***********************************************************************
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* GetLocalizedName
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***********************************************************************/
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const char *
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services_discovery_GetLocalizedName ( services_discovery_t * p_sd )
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{
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return p_sd->psz_localized_name ? strdup( p_sd->psz_localized_name ) : NULL;
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}
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/***********************************************************************
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* SetLocalizedName
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***********************************************************************/
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void
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services_discovery_SetLocalizedName ( services_discovery_t * p_sd, const char *psz )
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{
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if(p_sd->psz_localized_name) free( p_sd->psz_localized_name );
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p_sd->psz_localized_name = strdup(psz);
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}
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/***********************************************************************
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* EventManager
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***********************************************************************/
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vlc_event_manager_t *
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services_discovery_EventManager ( services_discovery_t * p_sd )
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{
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return &p_sd->event_manager;
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}
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/***********************************************************************
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* AddItem
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***********************************************************************/
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void
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services_discovery_AddItem ( services_discovery_t * p_sd, input_item_t * p_item,
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const char * psz_category )
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{
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vlc_event_t event;
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event.type = vlc_ServicesDiscoveryItemAdded;
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event.u.services_discovery_item_added.p_new_item = p_item;
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event.u.services_discovery_item_added.psz_category = psz_category;
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vlc_event_send( &p_sd->event_manager, &event );
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}
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/***********************************************************************
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* RemoveItem
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***********************************************************************/
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void
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services_discovery_RemoveItem ( services_discovery_t * p_sd, input_item_t * p_item )
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{
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vlc_event_t event;
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event.type = vlc_ServicesDiscoveryItemRemoved;
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event.u.services_discovery_item_removed.p_item = p_item;
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vlc_event_send( &p_sd->event_manager, &event );
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}
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/***********************************************************************
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* RunSD (Private)
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***********************************************************************/
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static void RunSD( services_discovery_t *p_sd )
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{
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p_sd->pf_run( p_sd );
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return;
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}
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/*
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* Playlist - Services discovery bridge
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*/
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/* A new item has been added to a certain sd */
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static void playlist_sd_item_added( const vlc_event_t * p_event, void * user_data )
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{
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input_item_t * p_input = p_event->u.services_discovery_item_added.p_new_item;
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const char * psz_cat = p_event->u.services_discovery_item_added.psz_category;
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playlist_item_t *p_new_item, * p_parent = user_data;
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msg_Dbg( p_parent->p_playlist, "Adding %s in %s", p_input->psz_name, psz_cat );
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/* If p_child is in root category (this is clearly a hack) and we have a cat*/
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if( !EMPTY_STR(psz_cat) &&
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p_parent == playlist_ItemToNode( p_parent->p_playlist, p_parent, VLC_FALSE ) )
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{
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/* */
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playlist_item_t * p_cat;
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p_cat = playlist_ChildSearchName( p_parent, psz_cat );
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if( !p_cat )
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{
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p_cat = playlist_NodeCreate( p_parent->p_playlist, psz_cat,
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p_parent, 0 );
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p_cat->i_flags &= ~PLAYLIST_SKIP_FLAG;
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}
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p_parent = p_cat;
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}
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p_new_item = playlist_NodeAddInput( p_parent->p_playlist, p_input, p_parent,
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PLAYLIST_APPEND, PLAYLIST_END, VLC_FALSE );
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p_new_item->i_flags &= ~PLAYLIST_SKIP_FLAG;
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p_new_item->i_flags &= ~PLAYLIST_SAVE_FLAG;
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}
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/* A new item has been removed from a certain sd */
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static void playlist_sd_item_removed( const vlc_event_t * p_event, void * user_data )
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{
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playlist_item_t * p_child = user_data;
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msg_Err( p_child->p_playlist, "Service Discovery item deletion not handled" );
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}
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int playlist_ServicesDiscoveryAdd( playlist_t *p_playlist, const char *psz_modules )
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{
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const char *psz_parser = psz_modules ?: "";
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@ -33,6 +215,7 @@ int playlist_ServicesDiscoveryAdd( playlist_t *p_playlist, const char *psz_modu
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for (;;)
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{
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playlist_item_t * p_cat, * p_one;
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while( *psz_parser == ' ' || *psz_parser == ':' || *psz_parser == ',' )
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psz_parser++;
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@ -50,37 +233,51 @@ int playlist_ServicesDiscoveryAdd( playlist_t *p_playlist, const char *psz_modu
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/* Perform the addition */
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msg_Dbg( p_playlist, "Add services_discovery %s", psz_plugin );
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services_discovery_t *p_sd = vlc_object_create( p_playlist,
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VLC_OBJECT_SD );
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if( p_sd == NULL )
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return VLC_ENOMEM;
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services_discovery_t *p_sd;
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p_sd->pf_run = NULL;
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p_sd->p_module = module_Need( p_sd, "services_discovery", psz_plugin, 0 );
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if( p_sd->p_module == NULL )
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{
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msg_Err( p_playlist, "no suitable services discovery module" );
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vlc_object_destroy( p_sd );
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retval = VLC_EGENERIC;
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p_sd = services_discovery_Create( (vlc_object_t*)p_playlist, psz_plugin );
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if( !p_sd )
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continue;
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char * psz = services_discovery_GetLocalizedName( p_sd );
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if( psz )
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{
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playlist_NodesPairCreate( p_playlist, psz,
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&p_cat, &p_one, VLC_FALSE );
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free( psz );
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}
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p_sd->psz_module = strdup( psz_plugin );
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p_sd->b_die = VLC_FALSE; /* FIXME */
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else
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{
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/* No name, just add at the top of the playlist */
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p_cat = p_playlist->p_root_category;
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p_one = p_playlist->p_root_onelevel;
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}
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vlc_event_attach( services_discovery_EventManager( p_sd ),
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vlc_ServicesDiscoveryItemAdded,
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playlist_sd_item_added,
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p_one );
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vlc_event_attach( services_discovery_EventManager( p_sd ),
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vlc_ServicesDiscoveryItemAdded,
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playlist_sd_item_added,
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p_cat );
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vlc_event_attach( services_discovery_EventManager( p_sd ),
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vlc_ServicesDiscoveryItemRemoved,
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playlist_sd_item_removed,
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p_one );
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vlc_event_attach( services_discovery_EventManager( p_sd ),
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vlc_ServicesDiscoveryItemRemoved,
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playlist_sd_item_removed,
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p_cat );
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services_discovery_Start( p_sd );
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PL_LOCK;
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TAB_APPEND( p_playlist->i_sds, p_playlist->pp_sds, p_sd );
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PL_UNLOCK;
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if ((p_sd->pf_run != NULL)
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&& vlc_thread_create( p_sd, "services_discovery", RunSD,
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VLC_THREAD_PRIORITY_LOW, VLC_FALSE))
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{
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msg_Err( p_sd, "cannot create services discovery thread" );
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vlc_object_destroy( p_sd );
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retval = VLC_EGENERIC;
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continue;
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}
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}
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return retval;
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@ -106,12 +303,7 @@ int playlist_ServicesDiscoveryRemove( playlist_t * p_playlist,
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if( p_sd )
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{
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vlc_object_kill( p_sd );
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if( p_sd->pf_run ) vlc_thread_join( p_sd );
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free( p_sd->psz_module );
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module_Unneed( p_sd, p_sd->p_module );
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vlc_object_destroy( p_sd );
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services_discovery_Destroy( p_sd );
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}
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else
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{
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@ -139,8 +331,3 @@ vlc_bool_t playlist_IsServicesDiscoveryLoaded( playlist_t * p_playlist,
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return VLC_FALSE;
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}
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static void RunSD( services_discovery_t *p_sd )
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{
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p_sd->pf_run( p_sd );
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return;
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}
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