git.sesse.net Git - vlc/blob - src/control/playlist.c

   1 /*****************************************************************************
   2  * playlist.c: libvlc new API playlist handling functions
   3  *****************************************************************************
   4  * Copyright (C) 2005 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #include "libvlc_internal.h"
  25
  26 #include <vlc/libvlc.h>
  27 #include <vlc_playlist.h>
  28
  29 #include <assert.h>
  30
  31 #include "../playlist/playlist_internal.h"
  32
  33 #define PL (libvlc_priv (p_instance->p_libvlc_int)->p_playlist)
  34
  35 static inline int playlist_was_locked( libvlc_instance_t *p_instance )
  36 {
  37     int was_locked;
  38     vlc_mutex_lock( &p_instance->instance_lock );
  39     was_locked = p_instance->b_playlist_locked;
  40     vlc_mutex_unlock( &p_instance->instance_lock );
  41     return was_locked;
  42 }
  43
  44 static inline void playlist_mark_locked( libvlc_instance_t *p_instance,
  45                                          int locked )
  46 {
  47     vlc_mutex_lock( &p_instance->instance_lock );
  48     p_instance->b_playlist_locked = locked;
  49     vlc_mutex_unlock( &p_instance->instance_lock );
  50 }
  51
  52 void libvlc_playlist_loop( libvlc_instance_t *p_instance, int loop,
  53                            libvlc_exception_t *p_e)
  54 {
  55     VLC_UNUSED(p_e);
  56
  57     assert( PL );
  58     var_SetBool( PL, "loop", loop );
  59 }
  60
  61 void libvlc_playlist_play( libvlc_instance_t *p_instance, int i_id,
  62                            int i_options, char **ppsz_options,
  63                            libvlc_exception_t *p_e )
  64 {
  65     VLC_UNUSED(p_e); VLC_UNUSED(i_options); VLC_UNUSED(ppsz_options);
  66
  67     int did_lock = 0;
  68     assert( PL );
  69     ///\todo Handle additionnal options
  70
  71     if( PL->items.i_size == 0 ) RAISEVOID( "Empty playlist" );
  72     if( i_id > 0 )
  73     {
  74         playlist_item_t *p_item;
  75         if (! playlist_was_locked( p_instance ) )
  76         {
  77             playlist_mark_locked( p_instance, 1 );
  78             playlist_Lock( PL );
  79             did_lock = 1;
  80         }
  81
  82         p_item = playlist_ItemGetByInputId( PL, i_id,
  83                                             PL->p_root_category );
  84         if( p_item )
  85             playlist_Control( PL, PLAYLIST_VIEWPLAY, pl_Locked,
  86                               PL->p_root_category, p_item );
  87        else
  88             RAISEVOID( "Unable to find item" );
  89
  90         if( did_lock == 1 )
  91         {
  92             playlist_Unlock( PL );
  93             playlist_mark_locked( p_instance, 0 );
  94         }
  95     }
  96     else
  97     {
  98         playlist_Control( PL, PLAYLIST_PLAY,
  99                           playlist_was_locked( p_instance ) );
 100     }
 101 }
 102
 103 void libvlc_playlist_pause( libvlc_instance_t *p_instance,
 104                             libvlc_exception_t *p_e )
 105 {
 106     assert( PL );
 107     if( playlist_Control( PL, PLAYLIST_PAUSE,
 108                           playlist_was_locked( p_instance ) ) != VLC_SUCCESS )
 109         RAISEVOID( "Empty playlist" );
 110 }
 111
 112
 113 void libvlc_playlist_stop( libvlc_instance_t *p_instance,
 114                            libvlc_exception_t *p_e )
 115 {
 116     assert( PL );
 117     if( playlist_Control( PL, PLAYLIST_STOP,
 118                           playlist_was_locked( p_instance ) ) != VLC_SUCCESS )
 119         RAISEVOID( "Empty playlist" );
 120 }
 121
 122 void libvlc_playlist_clear( libvlc_instance_t *p_instance,
 123                             libvlc_exception_t *p_e )
 124 {
 125     VLC_UNUSED(p_e);
 126
 127     assert( PL );
 128     playlist_Clear( PL, playlist_was_locked( p_instance ) );
 129 }
 130
 131 void libvlc_playlist_next( libvlc_instance_t *p_instance,
 132                            libvlc_exception_t *p_e )
 133 {
 134     assert( PL );
 135     if( playlist_Control( PL, PLAYLIST_SKIP, playlist_was_locked( p_instance ),
 136                           1 ) != VLC_SUCCESS )
 137         RAISEVOID( "Empty playlist" );
 138 }
 139
 140 void libvlc_playlist_prev( libvlc_instance_t *p_instance,
 141                            libvlc_exception_t *p_e )
 142 {
 143     if( playlist_Control( PL, PLAYLIST_SKIP, playlist_was_locked( p_instance ),
 144                           -1  ) != VLC_SUCCESS )
 145         RAISEVOID( "Empty playlist" );
 146 }
 147
 148 int libvlc_playlist_add( libvlc_instance_t *p_instance, const char *psz_uri,
 149                          const char *psz_name, libvlc_exception_t *p_e )
 150 {
 151     return libvlc_playlist_add_extended( p_instance, psz_uri, psz_name,
 152                                          0, NULL, p_e );
 153 }
 154
 155 static int PlaylistAddExtended( libvlc_instance_t *p_instance,
 156                                 const char *psz_uri, const char *psz_name,
 157                                 int i_options, const char **ppsz_options,
 158                                 unsigned i_option_flags,
 159                                 libvlc_exception_t *p_e )
 160 {
 161     assert( PL );
 162     if( playlist_was_locked( p_instance ) )
 163     {
 164         libvlc_exception_raise( p_e, "You must unlock playlist before "
 165                                "calling libvlc_playlist_add" );
 166         return VLC_EGENERIC;
 167     }
 168     return playlist_AddExt( PL, psz_uri, psz_name,
 169                             PLAYLIST_INSERT, PLAYLIST_END, -1,
 170                             i_options, ppsz_options, i_option_flags,
 171                             true, pl_Unlocked );
 172 }
 173 int libvlc_playlist_add_extended( libvlc_instance_t *p_instance,
 174                                   const char *psz_uri, const char *psz_name,
 175                                   int i_options, const char **ppsz_options,
 176                                   libvlc_exception_t *p_e )
 177 {
 178     return PlaylistAddExtended( p_instance, psz_uri, psz_name,
 179                                 i_options, ppsz_options, VLC_INPUT_OPTION_TRUSTED,
 180                                 p_e );
 181 }
 182 int libvlc_playlist_add_extended_untrusted( libvlc_instance_t *p_instance,
 183                                             const char *psz_uri, const char *psz_name,
 184                                             int i_options, const char **ppsz_options,
 185                                             libvlc_exception_t *p_e )
 186 {
 187     return PlaylistAddExtended( p_instance, psz_uri, psz_name,
 188                                 i_options, ppsz_options, 0,
 189                                 p_e );
 190 }
 191
 192 int libvlc_playlist_delete_item( libvlc_instance_t *p_instance, int i_id,
 193                                  libvlc_exception_t *p_e )
 194 {
 195     assert( PL );
 196
 197     if( playlist_DeleteFromInput( PL, i_id,
 198                                   playlist_was_locked( p_instance ) ) )
 199     {
 200         libvlc_exception_raise( p_e, "deletion failed" );
 201         return VLC_ENOITEM;
 202     }
 203     return VLC_SUCCESS;
 204 }
 205
 206 int libvlc_playlist_isplaying( libvlc_instance_t *p_instance,
 207                                libvlc_exception_t *p_e )
 208 {
 209     VLC_UNUSED(p_e);
 210
 211     assert( PL );
 212     return playlist_Status( PL ) == PLAYLIST_RUNNING;
 213 }
 214
 215 int libvlc_playlist_items_count( libvlc_instance_t *p_instance,
 216                                  libvlc_exception_t *p_e )
 217 {
 218     VLC_UNUSED(p_e);
 219
 220     assert( PL );
 221     return playlist_CurrentSize( PL );
 222 }
 223
 224 int libvlc_playlist_get_current_index ( libvlc_instance_t *p_instance,
 225                                         libvlc_exception_t *p_e )
 226 {
 227     VLC_UNUSED(p_e);
 228
 229     assert( PL );
 230     playlist_item_t *p_item = playlist_CurrentPlayingItem( PL );
 231     if( !p_item )
 232         return -1;
 233     return p_item->i_id;
 234 }
 235
 236 void libvlc_playlist_lock( libvlc_instance_t *p_instance )
 237 {
 238     assert( PL );
 239     playlist_Lock( PL );
 240     p_instance->b_playlist_locked = 1;
 241 }
 242
 243 void libvlc_playlist_unlock( libvlc_instance_t *p_instance )
 244 {
 245     assert( PL );
 246     p_instance->b_playlist_locked = 0;
 247     playlist_Unlock( PL );
 248 }
 249
 250 libvlc_media_player_t * libvlc_playlist_get_media_player(
 251                                 libvlc_instance_t *p_instance,
 252                                 libvlc_exception_t *p_e )
 253 {
 254     libvlc_media_player_t *p_mi;
 255     assert( PL );
 256     input_thread_t * input = playlist_CurrentInput( PL );
 257     if( input )
 258     {
 259         p_mi = libvlc_media_player_new_from_input_thread(
 260                             p_instance, input, p_e );
 261         vlc_object_release( input );
 262     }
 263     else
 264     {
 265         /* no active input */
 266         p_mi = NULL;
 267         libvlc_exception_raise( p_e, "No active input" );
 268     }
 269
 270     return p_mi;
 271 }
 272