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Commit 628b01be authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont
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core: remove media library support

parent acee3359
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configure.ac
View file @ 628b01be
......@@ -3959,17 +3959,6 @@ dnl Libnotify notification plugin
dnl
PKG_ENABLE_MODULES_VLC([NOTIFY], [], [libnotify gtk+-2.0], [libnotify notification], [auto])
dnl
dnl media library
dnl
AC_ARG_ENABLE(media-library,
[ --enable-media-library media library (default disabled)])
AS_IF([test "${enable_media_library}" = "yes"], [
AC_DEFINE([MEDIA_LIBRARY], 1, [Define if you want to use the VLC media library])
VLC_ADD_CPPFLAGS([qt4],"-DMEDIA_LIBRARY")
])
dnl
dnl Endianness check
dnl
......
include/vlc_media_library.h
View file @ 628b01be
......@@ -32,9 +32,6 @@
extern "C" {
# endif
#include <vlc_common.h>
#include <vlc_playlist.h>
/*****************************************************************************
* ML Enums
*****************************************************************************/
......@@ -45,8 +42,6 @@ extern "C" {
#define ML_PERSON_PUBLISHER "Publisher"
#define ml_priv( gc, t ) ((t *)(((char *)(gc)) - offsetof(t, ml_gc_data)))
/** List of Query select types.
* In a query array or variable argument list, each select type is followed
* by an argument (X) of variable type (char* or int, @see ml_element_t).
......@@ -125,1131 +120,6 @@ typedef enum {
ML_TYPE_MEDIA, /**< A pointer to a media ml_media_t* */
} ml_result_type_e;
/** Arguments for VLC Control for the media library */
typedef enum
{
ML_SET_DATABASE, /**< arg1 = char *psz_host
arg2 = int i_port
arg3 = char *psz_user
arg4 = char *psz_pass */
ML_INIT_DATABASE, /**< No arg */
ML_ADD_INPUT_ITEM, /**< arg1 = input_item_t* */
ML_ADD_PLAYLIST_ITEM, /**< arg1 = playlist_item_t * */
ML_ADD_MONITORED, /**< arg1 = char* */
ML_DEL_MONITORED, /**< arg1 = char* */
ML_GET_MONITORED, /**< arg1 = vlc_array_t* */
} ml_control_e;
/* Operations that can be specified between find conditions */
typedef enum
{
ML_OP_NONE = 0, /**< This is to specify an actual condition */
ML_OP_AND, /**< AND condition */
ML_OP_OR, /**< OR condition */
ML_OP_NOT, /**< NOT condition */
ML_OP_SPECIAL /**< This is for inclusion of
* special stuffs like LIMIT */
} ml_op_e;
/* Comparison operators used in a single find condition */
typedef enum
{
ML_COMP_NONE = 0,
ML_COMP_LESSER, ///< <
ML_COMP_LESSER_OR_EQUAL, ///< <=
ML_COMP_EQUAL, ///< ==
ML_COMP_GREATER_OR_EQUAL, ///< >=
ML_COMP_GREATER, ///< >
ML_COMP_HAS, ///< "Contains", equivalent to SQL "LIKE %x%"
ML_COMP_STARTS_WITH, ///< Equivalent to SQL "LIKE %x"
ML_COMP_ENDS_WITH, ///< Equivalent to SQL "LIKE x%"
} ml_comp_e;
/*****************************************************************************
* ML Structures and types
*****************************************************************************/
typedef struct media_library_t media_library_t;
typedef struct media_library_sys_t media_library_sys_t;
typedef struct ml_media_t ml_media_t;
typedef struct ml_result_t ml_result_t;
typedef struct ml_element_t ml_element_t;
typedef struct ml_person_t ml_person_t;
typedef struct ml_ftree_t ml_ftree_t;
typedef struct ml_gc_object_t
{
bool pool;
uintptr_t refs;
void (*pf_destructor) (struct ml_gc_object_t *);
} ml_gc_object_t;
#define ML_GC_MEMBERS ml_gc_object_t ml_gc_data;
/** Main structure of the media library. VLC object. */
struct media_library_t
{
VLC_COMMON_MEMBERS
module_t *p_module; /**< the media library module */
media_library_sys_t *p_sys; /**< internal struture */
/** Member functions */
struct
{
/**< Search in the database */
int ( * pf_Find ) ( media_library_t *p_media_library,
vlc_array_t *p_result_array,
va_list args );
/**< Search in the database using an array of arguments */
int ( * pf_FindAdv ) ( media_library_t *p_media_library,
vlc_array_t *p_result_array,
ml_select_e selected_type,
const char *psz_lvalue,
ml_ftree_t *tree );
/**< Update the database using an array of arguments */
int ( * pf_Update ) ( media_library_t *p_media_library,
ml_select_e selected_type,
const char *psz_lvalue,
ml_ftree_t *where,
vlc_array_t *changes );
/**< Delete many medias in the database */
int ( * pf_Delete ) ( media_library_t *p_media_library,
vlc_array_t *p_array );
/**< Control the media library */
int ( * pf_Control ) ( media_library_t *p_media_library,
int i_query, va_list args );
/**< Create associated input item */
input_item_t* ( * pf_InputItemFromMedia ) (
media_library_t *p_media_library, int i_media );
/**< Get a media */
ml_media_t* ( * pf_GetMedia ) (
media_library_t *p_media_library, int i_media,
ml_select_e select, bool reload );
} functions;
};
/**
* @brief Structure to describe a media
*
* This is the main structure holding the meta data in ML.
* @see b_sparse indicates whether the media struct has valid values
* in its Extra fields. Otherwise, it must be loaded with the API
* function.
* @see i_id indicates whether this struct is saved in the ML if i_id > 0
* Otherwise, it can be added to the database
*/
struct ml_media_t
{
ML_GC_MEMBERS
vlc_mutex_t lock; /**< Mutex for multithreaded access */
bool b_sparse; /**< Specifies if media is loaded fully */
ml_type_e i_type; /**< Type of the media (ml_type_e) */
int8_t i_vote; /**< User vote */
int16_t i_disc_number; /**< Disc number of media */
int16_t i_track_number; /**< Track number */
int16_t i_year; /**< Year of release */
int32_t i_id; /**< Media ID in the database */
int32_t i_score; /**< Score computed about the media */
int32_t i_album_id; /**< Album id */
int32_t i_played_count; /**< How many time the media was played */
int32_t i_skipped_count; /**< No. of times file was skipped */
int32_t i_bitrate; /**< Extra: Bitrate of the media */
int32_t i_samplerate; /**< Extra: Samplerate of the media */
int32_t i_bpm; /**< Extra: Beats per minute */
char *psz_uri; /**< URI to find the media */
char *psz_title; /**< Title of the media */
char *psz_orig_title; /**< Original title (mainly for movies) */
char *psz_album; /**< Name of the album */
char *psz_cover; /**< URI of the cover */
char *psz_genre; /**< Genre of the media */
char *psz_preview; /**< Preview thumbnail for video, if any */
char *psz_comment; /**< Comment or description about media */
char *psz_language; /**< Extra: Language */
char *psz_extra; /**< Extra: Some extra datas like lyrics */
ml_person_t *p_people; /**< Extra: People associated with this
media This meta holds only one
artist if b_sparse = true */
int64_t i_filesize; /**< Size of the file */
mtime_t i_duration; /**< Duration in microseconds */
mtime_t i_last_played; /**< Time when the media was last played */
mtime_t i_last_skipped; /**< Time when the media was last skipped */
mtime_t i_first_played; /**< First played */
mtime_t i_import_time; /**< Time when media was added */
};
/**
* @brief Main communication struct between GUI and sql_media_library.
* Generic representation of an ML/SQL query result.
*/
struct ml_result_t
{
int32_t id; /**< Media/Album/Artist... ID (if any) */
ml_result_type_e type; /**< Type of value */
union
{
/* Classical results */
int i;
char *psz;
mtime_t time;
/* Complex result: media descriptor */
ml_media_t *p_media;
} value; /**< Value of the result obtained */
};
/**
* @brief Element of a query: criteria type/value pair
* Used for update and delete queries
*/
struct ml_element_t
{
ml_select_e criteria; /**< SELECT criteria type. @see ml_select_e */
union
{
int i;
char* str;
} value; /**< SELECT criteria value (string or int) */
union
{
int i;
char* str;
} lvalue; /**< Refer to @see ml_ftree_t lvalue docs */
};
/**
* Binary tree used to parse the WHERE condition for a search
*
* Let [expr] indicate a valid expression
* [expr] = [expr] AND [expr], where the left and right are respective
* [expr] = [expr] OR [expr]
* [expr] = [expr] NOT [NULL]
* [expr] = [expr] SPEC [spec_expr]
* [expr] = [criteria=val]
* [spec_expr] = [DISTINCT/LIMIT/ASC/DESC = val ]
*/
struct ml_ftree_t
{
ml_op_e op; /**< Operator. ML_OP_NONE means this is a leaf
* node. Criteria and value gives its data.
* ML_OP_SPECIAL specifies a special node
* that does not form a part of the WHERE.
* The right node consists of the data
* with its criteria set to the special val
* and the left node is the corresponding
* subtree of the parent node.
* ML_OP_NOT only left sub tree is considered
* ML_OP_AND and ML_OP_OR consider both
* left and right subtrees */
ml_ftree_t *left; /**< Left child of Bin tree */
ml_ftree_t *right; /**< Right child of Bin tree */
ml_select_e criteria; /**< SELECT criteria type @see ml_select_e
* The criteria value is considered only when
* op = ML_OP_NONE i.e. in leaf nodes */
ml_comp_e comp; /**< Condition between type and value */
union
{
int i;
char *str;
} value; /**< SELECT criteria value ( string or int ) */
union
{
int i;
char *str;
} lvalue; /**< Used as key value for people types/roles.
An empty string "" denotes ANY person role.
NULL is used for all other criterias */
};
/**
* Person class. Implemented as a linked list
*/
struct ml_person_t
{
char *psz_role; /**< Type of person */
char *psz_name; /**< Name of the person */
int i_id; /**< ID in the database */
ml_person_t *p_next; /**< Next person in list */
};
/*****************************************************************************
* ML Function headers
*****************************************************************************/
/**
* @brief Acquire a reference to the media library singleton
* @param p_this The object holding the media library
* @return The media library object. NULL if the media library
* object could not be loaded
*/
VLC_API media_library_t* ml_Get( vlc_object_t* p_this );
#define ml_Get( a ) ml_Get( VLC_OBJECT(a) )
/**
* @brief Create a Media Library VLC object.
* @param p_this Parent to attach the ML object to.
* @param psz_name Name for the module
* @return The ML object.
*/
media_library_t* ml_Create( vlc_object_t *p_this, char* psz_name );
/**
* @brief Destructor for the Media library singleton
* @param p_this Parent the ML object is attached to
*/
void ml_Destroy( vlc_object_t* p_this );
/**
* @brief Control the Media Library
* @param p_media_library the media library object
* @param i_type one of ml_control_e values @see ml_control_e.
* @param ... optional arguments.
* @return VLC_SUCCESS or an error
*/
static inline int ml_ControlVa( media_library_t *p_media_library,
ml_control_e i_type, va_list args )
{
return p_media_library->functions.pf_Control( p_media_library,
i_type,
args );
}
/**
* @brief Control the Media Library
* @param i_type one of ml_control_e values @see ml_control_e.
* Variable arguments list equivalent
*/
#define ml_Control( a, b, args... ) __ml_Control( a, b, ## args )
static inline int __ml_Control( media_library_t *p_media_library,
ml_control_e i_type, ... )
{
va_list args;
int returned;
va_start( args, i_type );
returned = ml_ControlVa( p_media_library, i_type, args );
va_end( args );
return returned;
}
/**
* @brief Determine an attribute's type (int or string)
* @param meta Attribute to test @see ml_select_e
* @return -1 if invalid, 0 if this is an integer, 1 if this is a string
*/
static inline int ml_AttributeIsString( ml_select_e meta )
{
switch( meta )
{
/* Strings */
case ML_ALBUM:
case ML_ARTIST:
case ML_COMMENT:
case ML_COVER:
case ML_EXTRA:
case ML_GENRE:
case ML_LANGUAGE:
case ML_PREVIEW:
case ML_PEOPLE:
case ML_PEOPLE_ROLE:
case ML_ORIGINAL_TITLE:
case ML_TITLE:
case ML_URI:
return 1;
/* Integers */
case ML_ALBUM_ID:
case ML_ARTIST_ID:
case ML_DURATION:
case ML_DISC_NUMBER:
case ML_COUNT_MEDIA:
case ML_COUNT_ALBUM:
case ML_COUNT_PEOPLE:
case ML_FILESIZE:
case ML_FIRST_PLAYED:
case ML_ID:
case ML_IMPORT_TIME:
case ML_LAST_PLAYED:
case ML_LIMIT:
case ML_PLAYED_COUNT:
case ML_PEOPLE_ID:
case ML_SCORE:
case ML_SKIPPED_COUNT:
case ML_TRACK_NUMBER:
case ML_TYPE:
case ML_VOTE:
case ML_YEAR:
return 0;
/* Invalid or no following value (in a SELECT statement) */
default:
return -1;
}
}
/* Reference Counting Functions */
/**
* @brief Increment reference count of media
* @param p_media The media object
*/
static inline void ml_gc_incref( ml_media_t* p_media )
{
ml_gc_object_t* p_gc = &p_media->ml_gc_data;
if( p_gc == NULL )
return;
++p_gc->refs;
}
/**
* @brief Decrease reference count of media
* @param p_media The media object
*/
static inline void ml_gc_decref( ml_media_t* p_media )
{
/* The below code is from vlc_release(). */
unsigned refs;
bool pool;
ml_gc_object_t* p_gc = &p_media->ml_gc_data;
if( p_gc == NULL )
return;
refs = --p_gc->refs;
pool = p_gc->pool;
if( refs == 0 && !pool )
{
p_gc->pf_destructor (p_gc);
}
}
/*****************************************************************************
* ML Free Functions
*****************************************************************************/
/**
* @brief Free a person object
* @param p_media Person object to free
* @note This function is NOT threadsafe
*/
static inline void ml_FreePeople( ml_person_t *p_person )
{
if( p_person == NULL )
return;
ml_FreePeople( p_person->p_next );
free( p_person->psz_name );
free( p_person->psz_role );
free( p_person );
}
/**
* @brief Free only the content of a media. @see ml_media_t
* @param p_media Media object
* @note This function is NOT threadsafe.
*/
static inline void ml_FreeMediaContent( ml_media_t *p_media )
{
FREENULL( p_media->psz_uri );
FREENULL( p_media->psz_title );
FREENULL( p_media->psz_orig_title );
FREENULL( p_media->psz_cover );
FREENULL( p_media->psz_comment );
FREENULL( p_media->psz_extra );
FREENULL( p_media->psz_genre );
FREENULL( p_media->psz_album );
FREENULL( p_media->psz_preview );
FREENULL( p_media->psz_language );
ml_FreePeople( p_media->p_people );
p_media->b_sparse = true;
p_media->i_id = 0;
p_media->i_type = ML_UNKNOWN;
p_media->i_album_id = 0;
p_media->i_disc_number = 0;
p_media->i_track_number = 0;
p_media->i_year = 0;
p_media->i_vote = 0;
p_media->i_score = 0;
p_media->i_filesize = 0;
p_media->i_duration = 0;
p_media->i_played_count = 0;
p_media->i_last_played = 0;
p_media->i_skipped_count = 0;
p_media->i_last_skipped = 0;
p_media->i_first_played = 0;
p_media->i_import_time = 0;
p_media->i_bitrate = 0;
p_media->i_samplerate = 0;
p_media->i_bpm = 0;
}
/**
* @brief Free a result item. @see ml_result_t
* @param p_result Result item to free
* @note This will free any strings and decref medias.
*/
static inline void ml_FreeResult( ml_result_t *p_result )
{
if( p_result )
{
switch( p_result->type )
{
case ML_TYPE_PSZ:
free( p_result->value.psz );
break;
case ML_TYPE_MEDIA:
ml_gc_decref( p_result->value.p_media );
break;
default:
break;
}
free( p_result );
}
}
/**
* @brief Free a ml_element_t item.
* @param p_find Find object to free
* @see ml_element_t */
static inline void ml_FreeElement( ml_element_t *p_elt )
{
if( p_elt )
{
if( ml_AttributeIsString( p_elt->criteria ) )
{
free( p_elt->value.str );
}
if( p_elt->criteria == ML_PEOPLE )
{
free( p_elt->lvalue.str );
}
free( p_elt );
}
}
/**
* @brief Destroy a vlc_array_t of ml_result_t
* @param ml_result_array The result array to free
* @note Frees all results and contents of the results
*/
static inline void ml_DestroyResultArray( vlc_array_t *p_result_array )
{
for( int i = 0; i < vlc_array_count( p_result_array ); i++ )
{
ml_FreeResult( ( ml_result_t* ) vlc_array_item_at_index(
p_result_array, i ) );
}
}
/*****************************************************************************
* ML Object Management Functions
*****************************************************************************/
/** Helpers for locking and unlocking */
#define ml_LockMedia( a ) vlc_mutex_lock( &a->lock )
#define ml_UnlockMedia( a ) vlc_mutex_unlock( &a->lock )
/**
* @brief Object constructor for ml_media_t
* @param p_ml The media library object
* @param id If 0, this item isn't in database. If non zero, it is and
* it will be a singleton
* @param select Type of object
* @param reload Whether to reload from database
*/
VLC_API ml_media_t *media_New( media_library_t* p_ml, int id,
ml_select_e select, bool reload );
/* Forward declaration */
static inline int ml_CopyPersons( ml_person_t** a, ml_person_t* b );
/**
* @brief Copy all members of a ml_media_t to another.
* @param b Destination media, already allocated
* @param a Source media, cannot be NULL, const
* @note This does not check memory allocation (for strdup). It is threadsafe
* @todo Free b content, before inserting a?
*/
static inline int ml_CopyMedia( ml_media_t *b, ml_media_t *a )
{
if( !a || !b ) return VLC_EGENERIC;
if( a == b ) return VLC_SUCCESS;
ml_LockMedia( a );
ml_LockMedia( b );
b->b_sparse = a->b_sparse;
b->i_id = a->i_id;
b->i_type = a->i_type;
b->i_album_id = a->i_album_id;
b->i_disc_number = a->i_disc_number;
b->i_track_number = a->i_track_number;
b->i_year = a->i_year;
b->i_vote = a->i_vote;
b->i_score = a->i_score;
b->i_filesize = a->i_filesize;
b->i_duration = a->i_duration;
b->i_played_count = a->i_played_count;
b->i_last_played = a->i_last_played;
b->i_skipped_count = a->i_skipped_count;
b->i_last_skipped = a->i_last_skipped;
b->i_first_played = a->i_first_played;
b->i_import_time = a->i_import_time;
b->i_bitrate = a->i_bitrate;
b->i_samplerate = a->i_samplerate;
b->i_bpm = a->i_bpm;
FREENULL( b->psz_uri );
if( a->psz_uri )
b->psz_uri = strdup( a->psz_uri );
FREENULL( b->psz_title );
if( a->psz_title )
b->psz_title = strdup( a->psz_title );
FREENULL( b->psz_orig_title );
if( a->psz_orig_title )
b->psz_orig_title = strdup( a->psz_orig_title );
FREENULL( b->psz_album );
if( a->psz_album )
b->psz_album = strdup( a->psz_album );
FREENULL( b->psz_cover );
if( a->psz_cover )
b->psz_cover = strdup( a->psz_cover );
FREENULL( b->psz_genre );
if( a->psz_genre )
b->psz_genre = strdup( a->psz_genre );
FREENULL( b->psz_comment );
if( a->psz_comment )
b->psz_comment = strdup( a->psz_comment );
FREENULL( b->psz_extra );
if( a->psz_extra )
b->psz_extra = strdup( a->psz_extra );
FREENULL( b->psz_preview );
if( a->psz_preview )
b->psz_preview = strdup( a->psz_preview );
FREENULL( b->psz_language );
if( a->psz_language )
b->psz_language = strdup( a->psz_language );
ml_FreePeople( b->p_people );
b->p_people = NULL;
if( a->p_people ) ml_CopyPersons( &( b->p_people ), a->p_people );
ml_UnlockMedia( b );
ml_UnlockMedia( a );
return VLC_SUCCESS;
}
/*****************************************************************************
* ML Find Tree Related Functions
*****************************************************************************/
#define ml_FreeFindTree( tree ) ml_GenericFreeFindTree( tree, true )
#define ml_ShallowFreeFindTree( tree ) ml_GenericFreeFindTree( tree, false )
/**
* @brief Free a find tree
* @param Find tree to free
* @param true to free any associated strings, false to not free them
*/
static inline void ml_GenericFreeFindTree( ml_ftree_t* tree, bool freestrings )
{
if( tree == NULL )
return;
if( tree->left )
{
ml_GenericFreeFindTree( tree->left, freestrings );
free( tree->left );
}
if( tree->right )
{
ml_GenericFreeFindTree( tree->right, freestrings );
free( tree->right );
}
if( tree->op == ML_OP_NONE && ml_AttributeIsString( tree->criteria )
&& freestrings)
{
free( tree->value.str );
if( tree->criteria == ML_PEOPLE )
free( tree->lvalue.str );
}
}
/**
* @brief Checks if a given find tree has leaf nodes
* @param Find tree
* @return Number of leaf nodes
*/
static inline int ml_FtreeHasOp( ml_ftree_t* tree )
{
if( tree == NULL )
return 0;
if( tree->criteria > 0 && tree->op == ML_OP_NONE )
return 1;
else
return ml_FtreeHasOp( tree->left ) + ml_FtreeHasOp( tree->right );
}
/**
* @brief Connect up a find tree
* @param op operator to connect with
* If op = ML_OP_NONE, then you are connecting to a tree consisting of
* only SPECIAL nodes.
* If op = ML_OP_NOT, then right MUST be NULL
* op must not be ML_OP_SPECIAL, @see ml_FtreeSpec
* @param left part of the tree
* @param right part of the tree
* @return Pointer to new tree
* @note Use the helpers!
*/
VLC_API ml_ftree_t *ml_OpConnectChilds( ml_op_e op, ml_ftree_t* left,
ml_ftree_t* right );
/**
* @brief Attaches a special node to a tree
* @param tree Tree to attach special node to
* @param crit Criteria may be SORT_ASC, SORT_DESC, LIMIT or DISTINCT
* @param limit Limit used if LIMIT criteria used
* @param Sort string used if SORT criteria is used
* @return Pointer to new tree
* @note Use the helpers
*/
VLC_API ml_ftree_t *ml_FtreeSpec( ml_ftree_t* tree,