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 #include "libvlc.h"
  26
  27 #include <vlc/libvlc.h>
  28 #include <vlc_playlist.h>
  29
  30 #include <assert.h>
  31
  32 #define PL (libvlc_priv (p_instance->p_libvlc_int)->p_playlist)
  33
  34 static inline int playlist_was_locked( libvlc_instance_t *p_instance )
  35 {
  36     int was_locked;
  37     vlc_mutex_lock( &p_instance->instance_lock );
  38     was_locked = p_instance->b_playlist_locked;
  39     vlc_mutex_unlock( &p_instance->instance_lock );
  40     return was_locked;
  41 }
  42
  43 static inline void playlist_mark_locked( libvlc_instance_t *p_instance,
  44                                          int locked )
  45 {
  46     vlc_mutex_lock( &p_instance->instance_lock );
  47     p_instance->b_playlist_locked = locked;
  48     vlc_mutex_unlock( &p_instance->instance_lock );
  49 }
  50
  51 void libvlc_playlist_loop( libvlc_instance_t *p_instance, int loop,
  52                            libvlc_exception_t *p_e)
  53 {
  54     VLC_UNUSED(p_e);
  55
  56     assert( PL );
  57     var_SetBool( PL, "loop", loop );
  58 }
  59
  60 void libvlc_playlist_play( libvlc_instance_t *p_instance, int i_id,
  61                            int i_options, char **ppsz_options,
  62                            libvlc_exception_t *p_e )
  63 {
  64     VLC_UNUSED(p_e); VLC_UNUSED(i_options); VLC_UNUSED(ppsz_options);
  65
  66     int did_lock = 0;
  67     assert( PL );
  68     ///\todo Handle additionnal options
  69
  70     if( PL->items.i_size == 0 ) RAISEVOID( "Empty playlist" );
  71     if( i_id > 0 )
  72     {
  73         playlist_item_t *p_item;
  74         if (! playlist_was_locked( p_instance ) )
  75         {
  76             playlist_mark_locked( p_instance, 1 );
  77             playlist_Lock( PL );
  78             did_lock = 1;
  79         }
  80
  81         p_item = playlist_ItemGetByInputId( PL, i_id,
  82                                             PL->p_root_category );
  83         if( p_item )
  84             playlist_Control( PL, PLAYLIST_VIEWPLAY, pl_Locked,
  85                               PL->p_root_category, p_item );
  86        else
  87             RAISEVOID( "Unable to find item" );
  88
  89         if( did_lock == 1 )
  90         {
  91             playlist_Unlock( PL );
  92             playlist_mark_locked( p_instance, 0 );
  93         }
  94     }
  95     else
  96     {
  97         playlist_Control( PL, PLAYLIST_PLAY,
  98                           playlist_was_locked( p_instance ) );
  99     }
 100 }
 101
 102 void libvlc_playlist_pause( libvlc_instance_t *p_instance,
 103                             libvlc_exception_t *p_e )
 104 {
 105     assert( PL );
 106     if( playlist_Control( PL, PLAYLIST_PAUSE,
 107                           playlist_was_locked( p_instance ) ) != VLC_SUCCESS )
 108         RAISEVOID( "Empty playlist" );
 109 }
 110
 111
 112 void libvlc_playlist_stop( libvlc_instance_t *p_instance,
 113                            libvlc_exception_t *p_e )
 114 {
 115     assert( PL );
 116     if( playlist_Control( PL, PLAYLIST_STOP,
 117                           playlist_was_locked( p_instance ) ) != VLC_SUCCESS )
 118         RAISEVOID( "Empty playlist" );
 119 }
 120
 121 void libvlc_playlist_clear( libvlc_instance_t *p_instance,
 122                             libvlc_exception_t *p_e )
 123 {
 124     VLC_UNUSED(p_e);
 125
 126     assert( PL );
 127     playlist_Clear( PL, playlist_was_locked( p_instance ) );
 128 }
 129
 130 void libvlc_playlist_next( libvlc_instance_t *p_instance,
 131                            libvlc_exception_t *p_e )
 132 {
 133     assert( PL );
 134     if( playlist_Control( PL, PLAYLIST_SKIP, playlist_was_locked( p_instance ),
 135                           1 ) != VLC_SUCCESS )
 136         RAISEVOID( "Empty playlist" );
 137 }
 138
 139 void libvlc_playlist_prev( libvlc_instance_t *p_instance,
 140                            libvlc_exception_t *p_e )
 141 {
 142     if( playlist_Control( PL, PLAYLIST_SKIP, playlist_was_locked( p_instance ),
 143                           -1  ) != VLC_SUCCESS )
 144         RAISEVOID( "Empty playlist" );
 145 }
 146
 147 int libvlc_playlist_add( libvlc_instance_t *p_instance, const char *psz_uri,
 148                          const char *psz_name, libvlc_exception_t *p_e )
 149 {
 150     return libvlc_playlist_add_extended( p_instance, psz_uri, psz_name,
 151                                          0, NULL, p_e );
 152 }
 153
 154 static int PlaylistAddExtended( libvlc_instance_t *p_instance,
 155                                 const char *psz_uri, const char *psz_name,
 156                                 int i_options, const char **ppsz_options,
 157                                 unsigned i_option_flags,
 158                                 libvlc_exception_t *p_e )
 159 {
 160     assert( PL );
 161     if( playlist_was_locked( p_instance ) )
 162     {
 163         libvlc_exception_raise( p_e, "You must unlock playlist before "
 164                                "calling libvlc_playlist_add" );
 165         return VLC_EGENERIC;
 166     }
 167     return playlist_AddExt( PL, psz_uri, psz_name,
 168                             PLAYLIST_INSERT, PLAYLIST_END, -1,
 169                             i_options, ppsz_options, i_option_flags,
 170                             true, pl_Unlocked );
 171 }
 172 int libvlc_playlist_add_extended( libvlc_instance_t *p_instance,
 173                                   const char *psz_uri, const char *psz_name,
 174                                   int i_options, const char **ppsz_options,
 175                                   libvlc_exception_t *p_e )
 176 {
 177     return PlaylistAddExtended( p_instance, psz_uri, psz_name,
 178                                 i_options, ppsz_options, VLC_INPUT_OPTION_TRUSTED,
 179                                 p_e );
 180 }
 181 int libvlc_playlist_add_extended_untrusted( libvlc_instance_t *p_instance,
 182                                             const char *psz_uri, const char *psz_name,
 183                                             int i_options, const char **ppsz_options,
 184                                             libvlc_exception_t *p_e )
 185 {
 186     return PlaylistAddExtended( p_instance, psz_uri, psz_name,
 187                                 i_options, ppsz_options, 0,
 188                                 p_e );
 189 }
 190
 191 int libvlc_playlist_delete_item( libvlc_instance_t *p_instance, int i_id,
 192                                  libvlc_exception_t *p_e )
 193 {
 194     assert( PL );
 195
 196     if( playlist_DeleteFromInput( PL, i_id,
 197                                   playlist_was_locked( p_instance ) ) )
 198     {
 199         libvlc_exception_raise( p_e, "deletion failed" );
 200         return VLC_ENOITEM;
 201     }
 202     return VLC_SUCCESS;
 203 }
 204
 205 int libvlc_playlist_isplaying( libvlc_instance_t *p_instance,
 206                                libvlc_exception_t *p_e )
 207 {
 208     VLC_UNUSED(p_e);
 209
 210     assert( PL );
 211     return playlist_Status( PL ) == PLAYLIST_RUNNING;
 212 }
 213
 214 int libvlc_playlist_items_count( libvlc_instance_t *p_instance,
 215                                  libvlc_exception_t *p_e )
 216 {
 217     VLC_UNUSED(p_e);
 218
 219     assert( PL );
 220     return playlist_CurrentSize( PL );
 221 }
 222
 223 int libvlc_playlist_get_current_index ( libvlc_instance_t *p_instance,
 224                                         libvlc_exception_t *p_e )
 225 {
 226     VLC_UNUSED(p_e);
 227
 228     assert( PL );
 229     playlist_item_t *p_item = playlist_CurrentPlayingItem( PL );
 230     if( !p_item )
 231         return -1;
 232     return p_item->i_id;
 233 }
 234
 235 void libvlc_playlist_lock( libvlc_instance_t *p_instance )
 236 {
 237     assert( PL );
 238     playlist_Lock( PL );
 239     p_instance->b_playlist_locked = 1;
 240 }
 241
 242 void libvlc_playlist_unlock( libvlc_instance_t *p_instance )
 243 {
 244     assert( PL );
 245     p_instance->b_playlist_locked = 0;
 246     playlist_Unlock( PL );
 247 }
 248
 249 libvlc_media_player_t * libvlc_playlist_get_media_player(
 250                                 libvlc_instance_t *p_instance,
 251                                 libvlc_exception_t *p_e )
 252 {
 253     libvlc_media_player_t *p_mi;
 254     assert( PL );
 255     input_thread_t * input = playlist_CurrentInput( PL );
 256     if( input )
 257     {
 258         p_mi = libvlc_media_player_new_from_input_thread(
 259                             p_instance, input, p_e );
 260         vlc_object_release( input );
 261     }
 262     else
 263     {
 264         /* no active input */
 265         p_mi = NULL;
 266         libvlc_exception_raise( p_e, "No active input" );
 267     }
 268
 269     return p_mi;
 270 }
 271