mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-24 20:48:52 +02:00
9e7dd0b49f
This is accessed with the playlock lock anyway.
413 lines
16 KiB
C
413 lines
16 KiB
C
/*****************************************************************************
|
|
* vlc_playlist.h : Playlist functions
|
|
*****************************************************************************
|
|
* Copyright (C) 1999-2004 VLC authors and VideoLAN
|
|
* $Id$
|
|
*
|
|
* Authors: Samuel Hocevar <sam@zoy.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 2.1 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser 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.
|
|
*****************************************************************************/
|
|
|
|
#ifndef VLC_PLAYLIST_H_
|
|
#define VLC_PLAYLIST_H_
|
|
|
|
# ifdef __cplusplus
|
|
extern "C" {
|
|
# endif
|
|
|
|
#include <vlc_events.h>
|
|
|
|
TYPEDEF_ARRAY(playlist_item_t*, playlist_item_array_t)
|
|
|
|
struct intf_thread_t;
|
|
|
|
/**
|
|
* \file
|
|
* This file contain structures and function prototypes related
|
|
* to the playlist in vlc
|
|
*
|
|
* \defgroup vlc_playlist Playlist
|
|
*
|
|
* 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 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": It will contain the playlist_item_t->i_id of an item that is transformed
|
|
* into a node.
|
|
*
|
|
* The playlist contains rate-variable which is propagated to current input if available
|
|
* also rate-slower/rate-faster is in use
|
|
*
|
|
* 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.
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
/** Helper structure to export to file part of the playlist */
|
|
typedef struct playlist_export_t
|
|
{
|
|
VLC_COMMON_MEMBERS
|
|
const char *psz_filename;
|
|
FILE *p_file;
|
|
playlist_item_t *p_root;
|
|
} playlist_export_t;
|
|
|
|
/** playlist item / node */
|
|
struct playlist_item_t
|
|
{
|
|
input_item_t *p_input; /**< Linked input item */
|
|
|
|
playlist_item_t **pp_children; /**< Children nodes/items */
|
|
playlist_item_t *p_parent; /**< Item parent */
|
|
int i_children; /**< Number of children, -1 if not a node */
|
|
unsigned i_nb_played; /**< Times played */
|
|
|
|
int i_id; /**< Playlist item specific id */
|
|
uint8_t i_flags; /**< Flags \see playlist_item_flags_e */
|
|
|
|
playlist_t *p_playlist; /**< Parent playlist */
|
|
};
|
|
|
|
typedef enum {
|
|
PLAYLIST_SAVE_FLAG = 0x0001, /**< Must it be saved */
|
|
PLAYLIST_SKIP_FLAG = 0x0002, /**< Must playlist skip after it ? */
|
|
PLAYLIST_DBL_FLAG = 0x0004, /**< Is it disabled ? */
|
|
PLAYLIST_RO_FLAG = 0x0008, /**< Write-enabled ? */
|
|
PLAYLIST_REMOVE_FLAG = 0x0010, /**< Remove this item at the end */
|
|
PLAYLIST_EXPANDED_FLAG = 0x0020, /**< Expanded node */
|
|
PLAYLIST_SUBITEM_STOP_FLAG = 0x0040, /**< Must playlist stop if the item gets subitems ?*/
|
|
} playlist_item_flags_e;
|
|
|
|
/** Playlist status */
|
|
typedef enum
|
|
{ PLAYLIST_STOPPED,PLAYLIST_RUNNING,PLAYLIST_PAUSED } playlist_status_t;
|
|
|
|
/** Structure containing information about the playlist */
|
|
struct playlist_t
|
|
{
|
|
VLC_COMMON_MEMBERS
|
|
|
|
playlist_item_array_t items; /**< Arrays of items */
|
|
playlist_item_array_t all_items; /**< Array of items and nodes */
|
|
|
|
playlist_item_array_t current; /**< Items currently being played */
|
|
int i_current_index; /**< Index in current array */
|
|
|
|
/* Predefined items */
|
|
playlist_item_t * p_root;
|
|
playlist_item_t * p_playing;
|
|
playlist_item_t * p_media_library;
|
|
|
|
//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 */
|
|
};
|
|
|
|
/** 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
|
|
|
|
enum
|
|
{
|
|
ORDER_NORMAL = 0,
|
|
ORDER_REVERSE = 1,
|
|
};
|
|
|
|
/* 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
|
|
|
|
enum pl_locked_state
|
|
{
|
|
pl_Locked = true,
|
|
pl_Unlocked = false
|
|
};
|
|
|
|
/*****************************************************************************
|
|
* Prototypes
|
|
*****************************************************************************/
|
|
|
|
/* Helpers */
|
|
#define PL_LOCK playlist_Lock( p_playlist )
|
|
#define PL_UNLOCK playlist_Unlock( p_playlist )
|
|
#define PL_ASSERT_LOCKED playlist_AssertLocked( p_playlist )
|
|
|
|
/* 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) )
|
|
|
|
VLC_API void playlist_Lock( playlist_t * );
|
|
VLC_API void playlist_Unlock( playlist_t * );
|
|
VLC_API void playlist_AssertLocked( playlist_t * );
|
|
VLC_API void playlist_Deactivate( playlist_t * );
|
|
|
|
/**
|
|
* 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_API int playlist_Control( playlist_t *p_playlist, int i_query, bool b_locked, ... );
|
|
|
|
/** Get current playing input. The object is retained.
|
|
*/
|
|
VLC_API input_thread_t * playlist_CurrentInput( playlist_t *p_playlist ) VLC_USED;
|
|
|
|
/** Get the duration of all items in a node.
|
|
*/
|
|
VLC_API mtime_t playlist_GetNodeDuration( playlist_item_t * );
|
|
|
|
/** Clear the playlist
|
|
* \param b_locked TRUE if playlist is locked when entering this function
|
|
*/
|
|
VLC_API void playlist_Clear( playlist_t *, bool );
|
|
|
|
/* Playlist sorting */
|
|
VLC_API int playlist_TreeMove( playlist_t *, playlist_item_t *, playlist_item_t *, int );
|
|
VLC_API int playlist_TreeMoveMany( playlist_t *, int, playlist_item_t **, playlist_item_t *, int );
|
|
VLC_API int playlist_RecursiveNodeSort( playlist_t *, playlist_item_t *,int, int );
|
|
|
|
VLC_API playlist_item_t * playlist_CurrentPlayingItem( playlist_t * ) VLC_USED;
|
|
VLC_API int playlist_Status( playlist_t * );
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
VLC_API int playlist_Export( playlist_t *p_playlist, const char *psz_name, playlist_item_t *p_export_root, const char *psz_type );
|
|
|
|
/**
|
|
* Open a playlist file, add its content to the current playlist
|
|
*/
|
|
VLC_API int playlist_Import( playlist_t *p_playlist, const char *psz_file );
|
|
|
|
/********************** Services discovery ***********************/
|
|
|
|
/** Add a list of comma-separated service discovery modules */
|
|
VLC_API int playlist_ServicesDiscoveryAdd(playlist_t *, const char *);
|
|
/** Remove a services discovery module by name */
|
|
VLC_API int playlist_ServicesDiscoveryRemove(playlist_t *, const char *);
|
|
/** Check whether a given SD is loaded */
|
|
VLC_API bool playlist_IsServicesDiscoveryLoaded( playlist_t *,const char *) VLC_DEPRECATED;
|
|
/** Query a services discovery */
|
|
VLC_API int playlist_ServicesDiscoveryControl( playlist_t *, const char *, int, ... );
|
|
|
|
|
|
|
|
/********************************************************
|
|
* Item management
|
|
********************************************************/
|
|
|
|
/*************************** Item deletion **************************/
|
|
VLC_API int playlist_DeleteFromInput( playlist_t *, input_item_t *, bool );
|
|
|
|
/******************** Item addition ********************/
|
|
VLC_API int playlist_Add( playlist_t *, const char *, const char *, int, int, bool, bool );
|
|
VLC_API int playlist_AddExt( playlist_t *, const char *, const char *, int, int, mtime_t, int, const char *const *, unsigned, bool, bool );
|
|
VLC_API int playlist_AddInput( playlist_t *, input_item_t *, int, int, bool, bool );
|
|
VLC_API playlist_item_t * playlist_NodeAddInput( playlist_t *, input_item_t *, playlist_item_t *, int, int, bool );
|
|
VLC_API int playlist_NodeAddCopy( playlist_t *, playlist_item_t *, playlist_item_t *, int );
|
|
|
|
/********************************** Item search *************************/
|
|
VLC_API playlist_item_t * playlist_ItemGetById(playlist_t *, int ) VLC_USED;
|
|
VLC_API playlist_item_t * playlist_ItemGetByInput(playlist_t *,input_item_t * ) VLC_USED;
|
|
|
|
VLC_API int playlist_LiveSearchUpdate(playlist_t *, playlist_item_t *, const char *, bool );
|
|
|
|
/********************************************************
|
|
* Tree management
|
|
********************************************************/
|
|
/* Node management */
|
|
VLC_API playlist_item_t * playlist_NodeCreate( playlist_t *, const char *, playlist_item_t * p_parent, int i_pos, int i_flags, input_item_t * );
|
|
VLC_API int playlist_NodeAppend(playlist_t *,playlist_item_t*,playlist_item_t *);
|
|
VLC_API int playlist_NodeInsert(playlist_t *,playlist_item_t*,playlist_item_t *, int);
|
|
VLC_API int playlist_NodeRemoveItem(playlist_t *,playlist_item_t*,playlist_item_t *);
|
|
VLC_API playlist_item_t * playlist_ChildSearchName(playlist_item_t*, const char* ) VLC_USED;
|
|
VLC_API int playlist_NodeDelete( playlist_t *, playlist_item_t *, bool , bool );
|
|
|
|
VLC_API 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 ) VLC_USED;
|
|
VLC_API 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 ) VLC_USED;
|
|
|
|
/**************************
|
|
* Audio output management
|
|
**************************/
|
|
|
|
VLC_API audio_output_t *playlist_GetAout( playlist_t * );
|
|
|
|
#define AOUT_VOLUME_DEFAULT 256
|
|
#define AOUT_VOLUME_MAX 512
|
|
|
|
VLC_API float playlist_VolumeGet( playlist_t * );
|
|
VLC_API int playlist_VolumeSet( playlist_t *, float );
|
|
VLC_API int playlist_VolumeUp( playlist_t *, int, float * );
|
|
#define playlist_VolumeDown(a, b, c) playlist_VolumeUp(a, -(b), c)
|
|
VLC_API int playlist_MuteSet( playlist_t *, bool );
|
|
VLC_API int playlist_MuteGet( playlist_t * );
|
|
|
|
static inline int playlist_MuteToggle( playlist_t *pl )
|
|
{
|
|
int val = playlist_MuteGet( pl );
|
|
if (val >= 0)
|
|
val = playlist_MuteSet( pl, !val );
|
|
return val;
|
|
}
|
|
|
|
VLC_API void playlist_EnableAudioFilter( playlist_t *, const char *, bool );
|
|
|
|
/***********************************************************************
|
|
* Inline functions
|
|
***********************************************************************/
|
|
/** 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;
|
|
}
|
|
|
|
/** 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
|