git.sesse.net Git - vlc/blob - src/control/libvlc_internal.h

   1 /*****************************************************************************
   2  * libvlc_internal.h : Definition of opaque structures for libvlc exported API
   3  * Also contains some internal utility functions
   4  *****************************************************************************
   5  * Copyright (C) 2005 the VideoLAN team
   6  * $Id$
   7  *
   8  * Authors: Clément Stenac <zorglub@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #ifndef _LIBVLC_INTERNAL_H
  26 #define _LIBVLC_INTERNAL_H 1
  27
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include <vlc/vlc.h>
  33 #include <vlc/libvlc_structures.h>
  34
  35 #include <vlc_arrays.h>
  36 #include <vlc_input.h>
  37
  38 # ifdef __cplusplus
  39 extern "C" {
  40 # endif
  41
  42 /***************************************************************************
  43  * Internal creation and destruction functions
  44  ***************************************************************************/
  45 VLC_EXPORT (libvlc_int_t *, libvlc_InternalCreate, ( void ) );
  46 VLC_EXPORT (int, libvlc_InternalInit, ( libvlc_int_t *, int, const char *ppsz_argv[] ) );
  47 VLC_EXPORT (int, libvlc_InternalCleanup, ( libvlc_int_t * ) );
  48 VLC_EXPORT (int, libvlc_InternalDestroy, ( libvlc_int_t *, bool ) );
  49
  50 VLC_EXPORT (int, libvlc_InternalAddIntf, ( libvlc_int_t *, const char *, bool,
  51                             bool, int, const char *const * ) );
  52
  53 void libvlc_event_init( libvlc_instance_t *, libvlc_exception_t * );
  54 void libvlc_event_fini( libvlc_instance_t * );
  55
  56
  57 /***************************************************************************
  58  * Opaque structures for libvlc API
  59  ***************************************************************************/
  60
  61 typedef int * libvlc_media_list_path_t; /* (Media List Player Internal) */
  62
  63 typedef enum libvlc_lock_state_t
  64 {
  65     libvlc_Locked,
  66     libvlc_UnLocked
  67 } libvlc_lock_state_t;
  68
  69 struct libvlc_instance_t
  70 {
  71     libvlc_int_t *p_libvlc_int;
  72     vlm_t        *p_vlm;
  73     int           b_playlist_locked;
  74     unsigned      ref_count;
  75     vlc_mutex_t   instance_lock;
  76     vlc_mutex_t   event_callback_lock;
  77     struct libvlc_callback_entry_list_t *p_callback_list;
  78 };
  79
  80 struct libvlc_media_t
  81 {
  82     libvlc_event_manager_t * p_event_manager;
  83     int                b_preparsed;
  84     input_item_t      *p_input_item;
  85     int                i_refcount;
  86     libvlc_instance_t *p_libvlc_instance;
  87     libvlc_state_t     state;
  88     struct libvlc_media_list_t *p_subitems; /* A media descriptor can have
  89                                            * Sub item */
  90     void *p_user_data; /* Allows for VLC.framework to hook into media descriptor without creating a new VLCMedia object. */
  91 };
  92
  93 struct libvlc_media_list_t
  94 {
  95     libvlc_event_manager_t *    p_event_manager;
  96     libvlc_instance_t *         p_libvlc_instance;
  97     int                         i_refcount;
  98     vlc_mutex_t                 object_lock;
  99     libvlc_media_t * p_md; /* The media from which the
 100                                        * mlist comes, if any. */
 101     vlc_array_t                items;
 102
 103     /* Other way to see that media list */
 104     /* Used in flat_media_list.c */
 105     libvlc_media_list_t *       p_flat_mlist;
 106
 107     /* This indicates if this media list is read-only
 108      * from a user point of view */
 109     bool                  b_read_only;
 110 };
 111
 112 typedef libvlc_media_list_view_t * (*libvlc_media_list_view_constructor_func_t)( libvlc_media_list_t * p_mlist, libvlc_exception_t * p_e ) ;
 113 typedef void (*libvlc_media_list_view_release_func_t)( libvlc_media_list_view_t * p_mlv ) ;
 114
 115 typedef int (*libvlc_media_list_view_count_func_t)( libvlc_media_list_view_t * p_mlv,
 116         libvlc_exception_t * ) ;
 117
 118 typedef libvlc_media_t *
 119         (*libvlc_media_list_view_item_at_index_func_t)(
 120                 libvlc_media_list_view_t * p_mlv,
 121                 int index,
 122                 libvlc_exception_t * ) ;
 123
 124 typedef libvlc_media_list_view_t *
 125         (*libvlc_media_list_view_children_at_index_func_t)(
 126                 libvlc_media_list_view_t * p_mlv,
 127                 int index,
 128                 libvlc_exception_t * ) ;
 129
 130 /* A way to see a media list */
 131 struct libvlc_media_list_view_t
 132 {
 133     libvlc_event_manager_t *    p_event_manager;
 134     libvlc_instance_t *         p_libvlc_instance;
 135     int                         i_refcount;
 136     vlc_mutex_t                 object_lock;
 137
 138     libvlc_media_list_t *       p_mlist;
 139
 140     struct libvlc_media_list_view_private_t * p_this_view_data;
 141
 142     /* Accessors */
 143     libvlc_media_list_view_count_func_t              pf_count;
 144     libvlc_media_list_view_item_at_index_func_t      pf_item_at_index;
 145     libvlc_media_list_view_children_at_index_func_t  pf_children_at_index;
 146
 147     libvlc_media_list_view_constructor_func_t         pf_constructor;
 148     libvlc_media_list_view_release_func_t            pf_release;
 149
 150     /* Notification callback */
 151     void (*pf_ml_item_added)(const libvlc_event_t *, libvlc_media_list_view_t *);
 152     void (*pf_ml_item_removed)(const libvlc_event_t *, libvlc_media_list_view_t *);
 153 };
 154
 155 struct libvlc_media_player_t
 156 {
 157     int                i_refcount;
 158     vlc_mutex_t        object_lock;
 159     input_thread_t *   p_input_thread;
 160     struct libvlc_instance_t *  p_libvlc_instance; /* Parent instance */
 161     libvlc_media_t * p_md; /* current media descriptor */
 162     libvlc_event_manager_t *    p_event_manager;
 163     libvlc_drawable_t           drawable;
 164
 165     bool        b_own_its_input_thread;
 166 };
 167
 168 struct libvlc_media_list_player_t
 169 {
 170     libvlc_event_manager_t *    p_event_manager;
 171     libvlc_instance_t *         p_libvlc_instance;
 172     int                         i_refcount;
 173     vlc_mutex_t                 object_lock;
 174     libvlc_media_list_path_t    current_playing_item_path;
 175     libvlc_media_t * p_current_playing_item;
 176     libvlc_media_list_t *       p_mlist;
 177     libvlc_media_player_t *   p_mi;
 178 };
 179
 180 struct libvlc_media_library_t
 181 {
 182     libvlc_event_manager_t * p_event_manager;
 183     libvlc_instance_t *      p_libvlc_instance;
 184     int                      i_refcount;
 185     libvlc_media_list_t *    p_mlist;
 186 };
 187
 188 struct libvlc_media_discoverer_t
 189 {
 190     libvlc_event_manager_t * p_event_manager;
 191     libvlc_instance_t *      p_libvlc_instance;
 192     services_discovery_t *   p_sd;
 193     libvlc_media_list_t *    p_mlist;
 194     bool               running;
 195     vlc_dictionary_t         catname_to_submedialist;
 196 };
 197
 198 /*
 199  * Event Handling
 200  */
 201 /* Example usage
 202  *
 203  * struct libvlc_cool_object_t
 204  * {
 205  *        ...
 206  *        libvlc_event_manager_t * p_event_manager;
 207  *        ...
 208  * }
 209  *
 210  * libvlc_my_cool_object_new()
 211  * {
 212  *        ...
 213  *        p_self->p_event_manager = libvlc_event_manager_init( p_self,
 214  *                                                   p_self->p_libvlc_instance, p_e);
 215  *        libvlc_event_manager_register_event_type(p_self->p_event_manager,
 216  *                libvlc_MyCoolObjectDidSomething, p_e)
 217  *        ...
 218  * }
 219  *
 220  * libvlc_my_cool_object_release()
 221  * {
 222  *         ...
 223  *         libvlc_event_manager_release( p_self->p_event_manager );
 224  *         ...
 225  * }
 226  *
 227  * libvlc_my_cool_object_do_something()
 228  * {
 229  *        ...
 230  *        libvlc_event_t event;
 231  *        event.type = libvlc_MyCoolObjectDidSomething;
 232  *        event.u.my_cool_object_did_something.what_it_did = kSomething;
 233  *        libvlc_event_send( p_self->p_event_manager, &event );
 234  * }
 235  * */
 236
 237 typedef struct libvlc_event_listener_t
 238 {
 239     libvlc_event_type_t event_type;
 240     void *              p_user_data;
 241     libvlc_callback_t   pf_callback;
 242 } libvlc_event_listener_t;
 243
 244 typedef struct libvlc_event_listeners_group_t
 245 {
 246     libvlc_event_type_t event_type;
 247     vlc_array_t listeners;
 248     bool b_sublistener_removed;
 249 } libvlc_event_listeners_group_t;
 250
 251 typedef struct libvlc_event_manager_t
 252 {
 253     void * p_obj;
 254     struct libvlc_instance_t * p_libvlc_instance;
 255     vlc_array_t listeners_groups;
 256     vlc_mutex_t object_lock;
 257     vlc_mutex_t event_sending_lock;
 258 } libvlc_event_sender_t;
 259
 260
 261 /***************************************************************************
 262  * Other internal functions
 263  ***************************************************************************/
 264 VLC_PRIVATE_API input_thread_t *libvlc_get_input_thread(
 265      libvlc_media_player_t *,
 266     libvlc_exception_t * );
 267
 268 /* Media instance */
 269 VLC_PRIVATE_API libvlc_media_player_t *
 270 libvlc_media_player_new_from_input_thread( libvlc_instance_t *,
 271                                            input_thread_t *,
 272                                            libvlc_exception_t * );
 273
 274 VLC_PRIVATE_API void libvlc_media_player_destroy(
 275         libvlc_media_player_t * );
 276
 277 /* Media Descriptor */
 278 VLC_PRIVATE_API libvlc_media_t * libvlc_media_new_from_input_item(
 279         libvlc_instance_t *, input_item_t *,
 280         libvlc_exception_t * );
 281
 282 VLC_PRIVATE_API void libvlc_media_set_state(
 283         libvlc_media_t *, libvlc_state_t,
 284         libvlc_exception_t * );
 285
 286 /* Media List */
 287 VLC_PRIVATE_API void _libvlc_media_list_add_media(
 288         libvlc_media_list_t * p_mlist,
 289         libvlc_media_t * p_md,
 290         libvlc_exception_t * p_e );
 291
 292 VLC_PRIVATE_API void _libvlc_media_list_insert_media(
 293         libvlc_media_list_t * p_mlist,
 294         libvlc_media_t * p_md, int index,
 295         libvlc_exception_t * p_e );
 296
 297 VLC_PRIVATE_API void _libvlc_media_list_remove_index(
 298         libvlc_media_list_t * p_mlist, int index,
 299         libvlc_exception_t * p_e );
 300
 301 /* Media List View */
 302 VLC_PRIVATE_API libvlc_media_list_view_t * libvlc_media_list_view_new(
 303         libvlc_media_list_t * p_mlist,
 304         libvlc_media_list_view_count_func_t pf_count,
 305         libvlc_media_list_view_item_at_index_func_t pf_item_at_index,
 306         libvlc_media_list_view_children_at_index_func_t pf_children_at_index,
 307         libvlc_media_list_view_constructor_func_t pf_constructor,
 308         libvlc_media_list_view_release_func_t pf_release,
 309         void * this_view_data,
 310         libvlc_exception_t * p_e );
 311
 312 VLC_PRIVATE_API void libvlc_media_list_view_set_ml_notification_callback(
 313         libvlc_media_list_view_t * p_mlv,
 314         void (*item_added)(const libvlc_event_t *, libvlc_media_list_view_t *),
 315         void (*item_removed)(const libvlc_event_t *, libvlc_media_list_view_t *) );
 316
 317 VLC_PRIVATE_API void libvlc_media_list_view_will_delete_item(
 318         libvlc_media_list_view_t * p_mlv,
 319         libvlc_media_t * p_item, int index );
 320
 321 VLC_PRIVATE_API void libvlc_media_list_view_item_deleted(
 322         libvlc_media_list_view_t * p_mlv,
 323         libvlc_media_t * p_item, int index );
 324
 325 VLC_PRIVATE_API void libvlc_media_list_view_will_add_item (
 326         libvlc_media_list_view_t * p_mlv,
 327         libvlc_media_t * p_item, int index );
 328
 329 VLC_PRIVATE_API void libvlc_media_list_view_item_added(
 330         libvlc_media_list_view_t * p_mlv,
 331         libvlc_media_t * p_item, int index );
 332
 333 /* Events */
 334 VLC_PRIVATE_API libvlc_event_manager_t * libvlc_event_manager_new(
 335         void * p_obj, libvlc_instance_t * p_libvlc_inst,
 336         libvlc_exception_t *p_e );
 337
 338 VLC_PRIVATE_API void libvlc_event_manager_release(
 339         libvlc_event_manager_t * p_em );
 340
 341 VLC_PRIVATE_API void libvlc_event_manager_register_event_type(
 342         libvlc_event_manager_t * p_em,
 343         libvlc_event_type_t event_type,
 344         libvlc_exception_t * p_e );
 345
 346 VLC_PRIVATE_API void libvlc_event_send(
 347         libvlc_event_manager_t * p_em,
 348         libvlc_event_t * p_event );
 349
 350
 351 /* Exception shorcuts */
 352
 353 #define RAISENULL( psz,a... ) { libvlc_exception_raise( p_e, psz,##a ); \
 354                                 return NULL; }
 355 #define RAISEVOID( psz,a... ) { libvlc_exception_raise( p_e, psz,##a ); \
 356                                 return; }
 357 #define RAISEZERO( psz,a... ) { libvlc_exception_raise( p_e, psz,##a ); \
 358                                 return 0; }
 359
 360 # ifdef __cplusplus
 361 }
 362 # endif
 363
 364 #endif