X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=include%2Fvlc_playlist.h;h=1af23587075c2366490f13418fa7968dc55e7c39;hb=b355bd884b2c1a9c2aaadcb8acd842b5fbff3c1f;hp=808f3d4085eb1f1b8fa3156d83eb9fd3d7228db2;hpb=562ab59b24114e526144b59b5967224de432412a;p=vlc diff --git a/include/vlc_playlist.h b/include/vlc_playlist.h index 808f3d4085..1af2358707 100644 --- a/include/vlc_playlist.h +++ b/include/vlc_playlist.h @@ -1,7 +1,7 @@ /***************************************************************************** * vlc_playlist.h : Playlist functions ***************************************************************************** - * Copyright (C) 1999-2004 VideoLAN + * Copyright (C) 1999-2004 the VideoLAN team * $Id$ * * Authors: Samuel Hocevar @@ -16,224 +16,375 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ -/** - * \file - * This file contain structures and function prototypes related - * to the playlist in vlc - */ +#ifndef VLC_PLAYLIST_H_ +#define VLC_PLAYLIST_H_ + +# ifdef __cplusplus +extern "C" { +# endif + +#include +#include + +TYPEDEF_ARRAY(playlist_item_t*, playlist_item_array_t) /** + * \file + * This file contain structures and function prototypes related + * to the playlist in vlc + * * \defgroup vlc_playlist Playlist - * Brief description. Longer description + * + * The VLC playlist system has a tree structure. This allows advanced + * categorization, like for SAP streams (which are grouped by "sap groups"). + * + * The base structure for all playlist operations is the input_item_t. This + * contains all information needed to play a stream and get info, ie, mostly, + * mrl and metadata. This structure contains a unique i_id field. ids are + * not recycled when an item is destroyed. + * + * Input items are not used directly, but through playlist items. + * The playlist items are themselves in a tree structure. They only contain + * a link to the input item, a unique id and a few flags. the playlist + * item id is NOT the same as the input item id. + * Several playlist items can be attached to a single input item. The input + * item is refcounted and is automatically destroyed when it is not used + * anymore. + * + * The top-level items are the main media sources and include: + * playlist, media library, SAP, Shoutcast, devices, ... + * + * It is envisioned that a third tree will appear: VLM, but it's not done yet + * + * The playlist also stores, for utility purposes, an array of all input + * items, an array of all playlist items and an array of all playlist items + * and nodes (both are represented by the same structure). + * + * So, here is an example: + * \verbatim + * Inputs array + * - input 1 -> name = foo 1 uri = ... + * - input 2 -> name = foo 2 uri = ... + * + * Playlist items tree + * - playlist (id 1) + * - category 1 (id 2) + * - foo 2 (id 6 - input 2) + * - media library (id 2) + * - foo 1 (id 5 - input 1) + * \endverbatim + * + * Sometimes, an item creates subitems. This happens for the directory access + * for example. In that case, if the item is under the "playlist" top-level item + * and playlist is configured to be flat then the item will be deleted and + * replaced with new subitems. If the item is under another top-level item, it + * will be transformed to a node and removed from the list of all items without + * nodes. + * + * For "standard" item addition, you can use playlist_Add, playlist_AddExt + * (more options) or playlist_AddInput if you already created your input + * item. This will add the item at the root of "Playlist" or of "Media library" + * in each of the two trees. + * + * You can create nodes with playlist_NodeCreate and can create items from + * existing input items to be placed under any node with playlist_NodeAddInput. + * + * To delete an item, use playlist_DeleteFromInput( p_item ) which will + * remove all occurrences of the input. + * + * + * The playlist defines the following event variables: + * + * - "item-change": It will contain the input_item_t->i_id of a changed input + * item monitored by the playlist. + * - "item-current": It will contain a input_item_t->i_id of the current + * item being played. + * + * - "playlist-item-append": It will contain a pointer to a playlist_add_t. + * - "playlist-item-deleted": It will contain the playlist_item_t->i_id of a + * deleted playlist_item_t. + * + * - "leaf-to-parent": Set when an item gets subitems and is transformed to a + * node. It will contain a pointer to the input_item_t bound to the transformed + * playlist item. + * + * + * XXX Be really carefull, playlist_item_t->i_id and input_item_t->i_id are not + * the same. Yes, the situation is pretty bad. + * * @{ */ -/** - * playlist export helper structure - */ -struct playlist_export_t +/** Helper structure to export to file part of the playlist */ +typedef struct playlist_export_t { - char *psz_filename; + VLC_COMMON_MEMBERS + const char *psz_filename; FILE *p_file; -}; + playlist_item_t *p_root; +} playlist_export_t; -/** - * playlist item - * \see playlist_t - */ +/** playlist item / node */ struct playlist_item_t { - input_item_t input; /**< input item descriptor */ - - int i_nb_played; /**< How many times was this item played ? */ - vlc_bool_t b_autodeletion; /**< Indicates whther this item is to - * be deleted after playback. True mean - * that this item is to be deleted - * after playback, false otherwise */ - vlc_bool_t b_enabled; /**< Indicates whether this item is to be - * played or skipped */ - int i_group; /**< Which group does this item belongs to ? */ - int i_id; /**< Unique id to track this item */ + input_item_t *p_input; /**< Linked input item */ + /** Number of children, -1 if not a node */ + playlist_item_t **pp_children; /**< Children nodes/items */ + playlist_item_t *p_parent; /**< Item parent */ + int i_children; + + int i_id; /**< Playlist item specific id */ + uint8_t i_flags; /**< Flags */ + playlist_t *p_playlist; /**< Parent playlist */ }; -/** - * playlist group - * \see playlist_t - */ -struct playlist_group_t -{ - char * psz_name; /**< name of the group */ - int i_id; /**< Identifier for the group */ -}; +#define PLAYLIST_SAVE_FLAG 0x0001 /**< Must it be saved */ +#define PLAYLIST_SKIP_FLAG 0x0002 /**< Must playlist skip after it ? */ +#define PLAYLIST_DBL_FLAG 0x0004 /**< Is it disabled ? */ +#define PLAYLIST_RO_FLAG 0x0008 /**< Write-enabled ? */ +#define PLAYLIST_REMOVE_FLAG 0x0010 /**< Remove this item at the end */ +#define PLAYLIST_EXPANDED_FLAG 0x0020 /**< Expanded node */ +#define PLAYLIST_SUBITEM_STOP_FLAG 0x0040 /**< Must playlist stop if the item gets subitems ?*/ -/** - * Playlist status - */ -typedef enum { PLAYLIST_STOPPED,PLAYLIST_RUNNING,PLAYLIST_PAUSED } playlist_status_t; +/** Playlist status */ +typedef enum +{ PLAYLIST_STOPPED,PLAYLIST_RUNNING,PLAYLIST_PAUSED } playlist_status_t; -/** - * Structure containing information about the playlist - */ +/** Structure containing information about the playlist */ struct playlist_t { VLC_COMMON_MEMBERS -/** - \name playlist_t - These members are uniq to playlist_t -*/ -/*@{*/ - int i_index; /**< current index into the playlist */ - playlist_status_t i_status; /**< current status of playlist */ - int i_size; /**< total size of the list */ - int i_enabled; /**< How many items are enabled ? */ - playlist_item_t ** pp_items; /**< array of pointers to the - * playlist items */ - int i_groups; /**< How many groups are in the playlist */ - playlist_group_t ** pp_groups;/**< array of pointers to the playlist - * groups */ - int i_last_group; /**< Maximal group id given */ - input_thread_t * p_input; /**< the input thread ascosiated - * with the current item */ - int i_last_id; /**< Last id to an item */ - int i_sort; /**< Last sorting applied to the playlist */ - int i_order; /**< Last ordering applied to the playlist */ - /*@}*/ -}; - -#define SORT_ID 0 -#define SORT_TITLE 1 -#define SORT_AUTHOR 2 -#define SORT_GROUP 3 -#define SORT_RANDOM 4 -#define SORT_DURATION 5 -#define ORDER_NORMAL 0 -#define ORDER_REVERSE 1 + playlist_item_array_t items; /**< Arrays of items */ + playlist_item_array_t all_items; /**< Array of items and nodes */ -#define PLAYLIST_TYPE_MANUAL 1 -#define PLAYLIST_TYPE_SAP 2 + playlist_item_array_t current; /**< Items currently being played */ + int i_current_index; /**< Index in current array */ -/***************************************************************************** - * Prototypes - *****************************************************************************/ -#define playlist_Create(a) __playlist_Create(VLC_OBJECT(a)) -playlist_t * __playlist_Create ( vlc_object_t * ); -void playlist_Destroy ( playlist_t * ); + /* Predefined items */ + playlist_item_t * p_root; + playlist_item_t * p_playing; + playlist_item_t * p_media_library; -#define playlist_Play(p) playlist_Command(p,PLAYLIST_PLAY,0) -#define playlist_Pause(p) playlist_Command(p,PLAYLIST_PAUSE,0) -#define playlist_Stop(p) playlist_Command(p,PLAYLIST_STOP,0) -#define playlist_Next(p) playlist_Command(p,PLAYLIST_SKIP,1) -#define playlist_Prev(p) playlist_Command(p,PLAYLIST_SKIP,-1) -#define playlist_Skip(p,i) playlist_Command(p,PLAYLIST_SKIP,i) -#define playlist_Goto(p,i) playlist_Command(p,PLAYLIST_GOTO,i) + //Phony ones, point to those above; + playlist_item_t * p_root_category; /**< Root of category tree */ + playlist_item_t * p_root_onelevel; /**< Root of onelevel tree */ + playlist_item_t * p_local_category; /** < "Playlist" in CATEGORY view */ + playlist_item_t * p_ml_category; /** < "Library" in CATEGORY view */ + playlist_item_t * p_local_onelevel; /** < "Playlist" in ONELEVEL view */ + playlist_item_t * p_ml_onelevel; /** < "Library" in ONELEVEL view */ +}; -VLC_EXPORT( void, playlist_Command, ( playlist_t *, playlist_command_t, int ) ); +/** Helper to add an item */ +struct playlist_add_t +{ + int i_node; /**< Playist id of the parent node */ + int i_item; /**< Playist id of the playlist_item_t */ +}; +/* A bit of macro magic to generate an enum out of the following list, + * and later, to generate a list of static functions out of the same list. + * There is also SORT_RANDOM, which is always last and handled specially. + */ +#define VLC_DEFINE_SORT_FUNCTIONS \ + DEF( SORT_ID )\ + DEF( SORT_TITLE )\ + DEF( SORT_TITLE_NODES_FIRST )\ + DEF( SORT_ARTIST )\ + DEF( SORT_GENRE )\ + DEF( SORT_DURATION )\ + DEF( SORT_TITLE_NUMERIC )\ + DEF( SORT_ALBUM )\ + DEF( SORT_TRACK_NUMBER )\ + DEF( SORT_DESCRIPTION )\ + DEF( SORT_RATING )\ + DEF( SORT_URI ) + +#define DEF( s ) s, +enum +{ + VLC_DEFINE_SORT_FUNCTIONS + SORT_RANDOM, + NUM_SORT_FNS=SORT_RANDOM +}; +#undef DEF +#ifndef VLC_INTERNAL_PLAYLIST_SORT_FUNCTIONS +#undef VLC_DEFINE_SORT_FUNCTIONS +#endif -/* Item management functions */ -#define playlist_AddItem(p,pi,i1,i2) playlist_ItemAdd(p,pi,i1,i2) -#define playlist_ItemNew( a , b, c ) __playlist_ItemNew(VLC_OBJECT(a) , b , c ) -VLC_EXPORT( playlist_item_t* , __playlist_ItemNew, ( vlc_object_t *,const char *,const char * ) ); -VLC_EXPORT( void, playlist_ItemDelete, ( playlist_item_t * ) ); -VLC_EXPORT( int, playlist_ItemAdd, ( playlist_t *, playlist_item_t *, int, int ) ); +enum +{ + ORDER_NORMAL = 0, + ORDER_REVERSE = 1, +}; -/* Simple add/remove funcctions */ -VLC_EXPORT( int, playlist_Add, ( playlist_t *, const char *, const char *, int, int ) ); -VLC_EXPORT( int, playlist_AddExt, ( playlist_t *, const char *, const char *, int, int, mtime_t, const char **,int ) ); +/* Used by playlist_Import */ +#define PLAYLIST_INSERT 0x0001 +#define PLAYLIST_APPEND 0x0002 +#define PLAYLIST_GO 0x0004 +#define PLAYLIST_PREPARSE 0x0008 +#define PLAYLIST_SPREPARSE 0x0010 +#define PLAYLIST_NO_REBUILD 0x0020 +#define PLAYLIST_END -666 -VLC_EXPORT( int, playlist_Clear, ( playlist_t * ) ); -VLC_EXPORT( int, playlist_Delete, ( playlist_t *, int ) ); -VLC_EXPORT( int, playlist_Disable, ( playlist_t *, int ) ); -VLC_EXPORT( int, playlist_Enable, ( playlist_t *, int ) ); -VLC_EXPORT( int, playlist_DisableGroup, ( playlist_t *, int ) ); -VLC_EXPORT( int, playlist_EnableGroup, ( playlist_t *, int ) ); +enum pl_locked_state +{ + pl_Locked = true, + pl_Unlocked = false +}; -/* Basic item informations accessors */ -VLC_EXPORT( int, playlist_ItemSetGroup, (playlist_item_t *, int ) ); -VLC_EXPORT( int, playlist_ItemSetName, (playlist_item_t *, char * ) ); -VLC_EXPORT( int, playlist_ItemSetDuration, (playlist_item_t *, mtime_t ) ); +/***************************************************************************** + * Prototypes + *****************************************************************************/ -VLC_EXPORT( int, playlist_SetGroup, (playlist_t * , int , int ) ); -VLC_EXPORT( int, playlist_SetName, (playlist_t *, int , char * ) ); -VLC_EXPORT( int, playlist_SetDuration, (playlist_t *, int , mtime_t ) ); +/* Helpers */ +#define PL_LOCK playlist_Lock( p_playlist ) +#define PL_UNLOCK playlist_Unlock( p_playlist ) +#define PL_ASSERT_LOCKED playlist_AssertLocked( p_playlist ) -/* Item search functions */ -VLC_EXPORT( int, playlist_GetPositionById, (playlist_t *, int) ); -VLC_EXPORT( playlist_item_t *, playlist_ItemGetById, (playlist_t *, int) ); -VLC_EXPORT( playlist_item_t *, playlist_ItemGetByPos, (playlist_t *, int) ); +VLC_EXPORT( playlist_t *, pl_Get, ( vlc_object_t * ) LIBVLC_USED ); +#define pl_Get( a ) pl_Get( VLC_OBJECT(a) ) +/* Playlist control */ +#define playlist_Play(p) playlist_Control(p,PLAYLIST_PLAY, pl_Unlocked ) +#define playlist_Pause(p) playlist_Control(p,PLAYLIST_PAUSE, pl_Unlocked ) +#define playlist_Stop(p) playlist_Control(p,PLAYLIST_STOP, pl_Unlocked ) +#define playlist_Next(p) playlist_Control(p,PLAYLIST_SKIP, pl_Unlocked, 1) +#define playlist_Prev(p) playlist_Control(p,PLAYLIST_SKIP, pl_Unlocked, -1) +#define playlist_Skip(p,i) playlist_Control(p,PLAYLIST_SKIP, pl_Unlocked, (i) ) -/* Group management functions */ -VLC_EXPORT( playlist_group_t *, playlist_CreateGroup, (playlist_t *, char* ) ); -VLC_EXPORT( int, playlist_DeleteGroup, (playlist_t *, int ) ); -VLC_EXPORT( char *, playlist_FindGroup, (playlist_t *, int ) ); -VLC_EXPORT( int, playlist_GroupToId, (playlist_t *, char * ) ); +VLC_EXPORT( void, playlist_Lock, ( playlist_t * ) ); +VLC_EXPORT( void, playlist_Unlock, ( playlist_t * ) ); +VLC_EXPORT( void, playlist_AssertLocked, ( playlist_t * ) ); -/* Info functions */ -VLC_EXPORT( char * , playlist_GetInfo, ( playlist_t * , int, const char *, const char *) ); -VLC_EXPORT( char * , playlist_ItemGetInfo, ( playlist_item_t * , const char *, const char *) ); +/** + * Do a playlist action. + * If there is something in the playlist then you can do playlist actions. + * Possible queries are listed in vlc_common.h + * \param p_playlist the playlist to do the command on + * \param i_query the command to do + * \param b_locked TRUE if playlist is locked when entering this function + * \param variable number of arguments + * \return VLC_SUCCESS or an error + */ +VLC_EXPORT( int, playlist_Control, ( playlist_t *p_playlist, int i_query, bool b_locked, ... ) ); -VLC_EXPORT( info_category_t*, playlist_ItemGetCategory, ( playlist_item_t *, const char *) ); +/** Get current playing input. The object is retained. + */ +VLC_EXPORT( input_thread_t *, playlist_CurrentInput, ( playlist_t *p_playlist ) LIBVLC_USED ); -VLC_EXPORT( info_category_t*, playlist_ItemCreateCategory, ( playlist_item_t *, const char *) ); +/** Clear the playlist + * \param b_locked TRUE if playlist is locked when entering this function + */ +VLC_EXPORT( void, playlist_Clear, ( playlist_t *, bool ) ); -VLC_EXPORT( int, playlist_AddInfo, (playlist_t *, int, const char * , const char *, const char *, ...) ); -VLC_EXPORT( int, playlist_ItemAddInfo, (playlist_item_t *, const char * , const char *, const char *, ...) ); +/** Enqueue an input item for preparsing */ +VLC_EXPORT( int, playlist_PreparseEnqueue, (playlist_t *, input_item_t * ) ); -/* Option functions */ -VLC_EXPORT( int, playlist_ItemAddOption, (playlist_item_t *, const char *) ); +/** Request the art for an input item to be fetched */ +VLC_EXPORT( int, playlist_AskForArtEnqueue, (playlist_t *, input_item_t * ) ); /* Playlist sorting */ -#define playlist_SortID(p, i) playlist_Sort( p, SORT_ID, i) -#define playlist_SortTitle(p, i) playlist_Sort( p, SORT_TITLE, i) -#define playlist_SortAuthor(p, i) playlist_Sort( p, SORT_AUTHOR, i) -#define playlist_SortGroup(p, i) playlist_Sort( p, SORT_GROUP, i) -VLC_EXPORT( int, playlist_Sort, ( playlist_t *, int, int) ); -VLC_EXPORT( int, playlist_Move, ( playlist_t *, int, int ) ); +VLC_EXPORT( int, playlist_TreeMove, ( playlist_t *, playlist_item_t *, playlist_item_t *, int ) ); +VLC_EXPORT( int, playlist_TreeMoveMany, ( playlist_t *, int, playlist_item_t **, playlist_item_t *, int ) ); +VLC_EXPORT( int, playlist_RecursiveNodeSort, ( playlist_t *, playlist_item_t *,int, int ) ); -/* Load/Save */ -VLC_EXPORT( int, playlist_Import, ( playlist_t *, const char * ) ); -VLC_EXPORT( int, playlist_Export, ( playlist_t *, const char *, const char * ) ); +VLC_EXPORT( playlist_item_t *, playlist_CurrentPlayingItem, ( playlist_t * ) LIBVLC_USED ); +VLC_EXPORT( int, playlist_Status, ( playlist_t * ) ); /** - * tell if a playlist is currently playing. - * \param p_playlist the playlist to check - * \return true if playlist is playing, false otherwise + * Export a node of the playlist to a certain type of playlistfile + * \param p_playlist the playlist to export + * \param psz_filename the location where the exported file will be saved + * \param p_export_root the root node to export + * \param psz_type the type of playlist file to create (m3u, pls, ..) + * \return VLC_SUCCESS on success */ -static inline vlc_bool_t playlist_IsPlaying( playlist_t * p_playlist ) -{ - vlc_bool_t b_playing; - - vlc_mutex_lock( &p_playlist->object_lock ); - b_playing = p_playlist->i_status == PLAYLIST_RUNNING; - vlc_mutex_unlock( &p_playlist->object_lock ); - - return( b_playing ); -} +VLC_EXPORT( int, playlist_Export, ( playlist_t *p_playlist, const char *psz_name, playlist_item_t *p_export_root, const char *psz_type ) ); /** - * tell if a playlist is currently empty - * \param p_playlist the playlist to check - * \return true if the playlist is empty, false otherwise + * Open a playlist file, add its content to the current playlist */ -static inline vlc_bool_t playlist_IsEmpty( playlist_t * p_playlist ) +VLC_EXPORT( int, playlist_Import, ( playlist_t *p_playlist, const char *psz_file ) ); + +/********************** Services discovery ***********************/ + +/** Add a list of comma-separated service discovery modules */ +VLC_EXPORT( int, playlist_ServicesDiscoveryAdd, (playlist_t *, const char *)); +/** Remove a services discovery module by name */ +VLC_EXPORT( int, playlist_ServicesDiscoveryRemove, (playlist_t *, const char *)); +/** Check whether a given SD is loaded */ +VLC_EXPORT( bool, playlist_IsServicesDiscoveryLoaded, ( playlist_t *,const char *)); + + + +/******************************************************** + * Item management + ********************************************************/ + +/*************************** Item deletion **************************/ +VLC_EXPORT( int, playlist_DeleteFromInput, ( playlist_t *, input_item_t *, bool ) ); + +/******************** Item addition ********************/ +VLC_EXPORT( int, playlist_Add, ( playlist_t *, const char *, const char *, int, int, bool, bool ) ); +VLC_EXPORT( int, playlist_AddExt, ( playlist_t *, const char *, const char *, int, int, mtime_t, int, const char *const *, unsigned, bool, bool ) ); +VLC_EXPORT( int, playlist_AddInput, ( playlist_t *, input_item_t *, int, int, bool, bool ) ); +VLC_EXPORT( playlist_item_t *, playlist_NodeAddInput, ( playlist_t *, input_item_t *, playlist_item_t *, int, int, bool ) ); +VLC_EXPORT( int, playlist_NodeAddCopy, ( playlist_t *, playlist_item_t *, playlist_item_t *, int ) ); + +/********************************** Item search *************************/ +VLC_EXPORT( playlist_item_t *, playlist_ItemGetById, (playlist_t *, int ) LIBVLC_USED ); +VLC_EXPORT( playlist_item_t *, playlist_ItemGetByInput, (playlist_t *,input_item_t * ) LIBVLC_USED ); + +VLC_EXPORT( int, playlist_LiveSearchUpdate, (playlist_t *, playlist_item_t *, const char *, bool ) ); + +/******************************************************** + * Tree management + ********************************************************/ +/* Node management */ +VLC_EXPORT( playlist_item_t *, playlist_NodeCreate, ( playlist_t *, const char *, playlist_item_t * p_parent, int i_pos, int i_flags, input_item_t * ) ); +VLC_EXPORT( int, playlist_NodeAppend, (playlist_t *,playlist_item_t*,playlist_item_t *) ); +VLC_EXPORT( int, playlist_NodeInsert, (playlist_t *,playlist_item_t*,playlist_item_t *, int) ); +VLC_EXPORT( int, playlist_NodeRemoveItem, (playlist_t *,playlist_item_t*,playlist_item_t *) ); +VLC_EXPORT( playlist_item_t *, playlist_ChildSearchName, (playlist_item_t*, const char* ) LIBVLC_USED ); +VLC_EXPORT( int, playlist_NodeDelete, ( playlist_t *, playlist_item_t *, bool , bool ) ); + +VLC_EXPORT( playlist_item_t *, playlist_GetNextLeaf, ( playlist_t *p_playlist, playlist_item_t *p_root, playlist_item_t *p_item, bool b_ena, bool b_unplayed ) LIBVLC_USED ); +VLC_EXPORT( playlist_item_t *, playlist_GetPrevLeaf, ( playlist_t *p_playlist, playlist_item_t *p_root, playlist_item_t *p_item, bool b_ena, bool b_unplayed ) LIBVLC_USED ); + +/*********************************************************************** + * Inline functions + ***********************************************************************/ +/** Small helper tp get current playing input or NULL. Release the input after use. */ +#define pl_CurrentInput(a) __pl_CurrentInput( VLC_OBJECT(a) ) +static inline input_thread_t * __pl_CurrentInput( vlc_object_t * p_this ) { - vlc_bool_t b_empty; + return playlist_CurrentInput( pl_Get( p_this ) ); +} - vlc_mutex_lock( &p_playlist->object_lock ); - b_empty = p_playlist->i_size == 0; - vlc_mutex_unlock( &p_playlist->object_lock ); +/** Tell if the playlist is empty */ +static inline bool playlist_IsEmpty( playlist_t *p_playlist ) +{ + PL_ASSERT_LOCKED; + return p_playlist->items.i_size == 0; +} - return( b_empty ); +/** Tell the number of items in the current playing context */ +static inline int playlist_CurrentSize( playlist_t *p_playlist ) +{ + PL_ASSERT_LOCKED; + return p_playlist->current.i_size; } -/** - * @} - */ +/** @} */ +# ifdef __cplusplus +} +# endif + +#endif