1 /*****************************************************************************
2 * control.c : Handle control of the playlist & running through it
3 *****************************************************************************
4 * Copyright (C) 1999-2004 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@zoy.org>
8 * Clément Stenac <zorglub@videolan.org>
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.
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.
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 *****************************************************************************/
28 #include <vlc_common.h>
29 #include "vlc_playlist.h"
30 #include "playlist_internal.h"
33 /*****************************************************************************
35 *****************************************************************************/
36 static int PlaylistVAControl( playlist_t * p_playlist, int i_query, va_list args );
38 /*****************************************************************************
40 *****************************************************************************/
42 static vlc_mutex_t global_lock = VLC_STATIC_MUTEX;
45 playlist_t *pl_Hold (vlc_object_t *obj)
48 libvlc_int_t *p_libvlc = obj->p_libvlc;
50 vlc_mutex_lock (&global_lock);
51 pl = libvlc_priv (p_libvlc)->p_playlist;
54 if (!libvlc_priv (p_libvlc)->playlist_active)
56 playlist_Activate (pl);
57 libvlc_priv (p_libvlc)->playlist_active = true;
60 /* The playlist should hold itself with vlc_object_hold() if ever. */
61 assert (VLC_OBJECT (pl) != obj);
64 vlc_mutex_unlock (&global_lock);
69 void pl_Release( vlc_object_t *p_this )
71 playlist_t *pl = libvlc_priv (p_this->p_libvlc)->p_playlist;
74 /* The rule is that pl_Release() should act on
75 the same object than pl_Hold() */
76 assert( VLC_OBJECT(pl) != p_this);
78 vlc_object_release( pl );
81 void pl_Deactivate (libvlc_int_t *p_libvlc)
83 vlc_mutex_lock (&global_lock);
84 if (libvlc_priv (p_libvlc)->playlist_active)
85 playlist_Deactivate (libvlc_priv (p_libvlc)->p_playlist);
86 vlc_mutex_unlock (&global_lock);
89 void playlist_Lock( playlist_t *pl )
91 vlc_mutex_lock( &pl_priv(pl)->lock );
94 void playlist_Unlock( playlist_t *pl )
96 vlc_mutex_unlock( &pl_priv(pl)->lock );
99 void playlist_AssertLocked( playlist_t *pl )
101 vlc_assert_locked( &pl_priv(pl)->lock );
104 int playlist_Control( playlist_t * p_playlist, int i_query,
109 PL_LOCK_IF( !b_locked );
110 va_start( args, b_locked );
111 i_result = PlaylistVAControl( p_playlist, i_query, args );
113 PL_UNLOCK_IF( !b_locked );
118 static int PlaylistVAControl( playlist_t * p_playlist, int i_query, va_list args )
120 playlist_item_t *p_item, *p_node;
124 if( !vlc_object_alive( p_playlist ) )
127 if( playlist_IsEmpty( p_playlist ) && i_query != PLAYLIST_STOP )
133 pl_priv(p_playlist)->request.i_status = PLAYLIST_STOPPED;
134 pl_priv(p_playlist)->request.b_request = true;
135 pl_priv(p_playlist)->request.p_item = NULL;
138 // Node can be null, it will keep the same. Use with care ...
139 // Item null = take the first child of node
140 case PLAYLIST_VIEWPLAY:
141 p_node = (playlist_item_t *)va_arg( args, playlist_item_t * );
142 p_item = (playlist_item_t *)va_arg( args, playlist_item_t * );
143 if ( p_node == NULL )
145 p_node = get_current_status_node( p_playlist );
148 pl_priv(p_playlist)->request.i_status = PLAYLIST_RUNNING;
149 pl_priv(p_playlist)->request.i_skip = 0;
150 pl_priv(p_playlist)->request.b_request = true;
151 pl_priv(p_playlist)->request.p_node = p_node;
152 pl_priv(p_playlist)->request.p_item = p_item;
153 if( p_item && var_GetBool( p_playlist, "random" ) )
154 pl_priv(p_playlist)->b_reset_currently_playing = true;
158 if( pl_priv(p_playlist)->p_input )
160 var_SetInteger( pl_priv(p_playlist)->p_input, "state", PLAYING_S );
165 pl_priv(p_playlist)->request.i_status = PLAYLIST_RUNNING;
166 pl_priv(p_playlist)->request.b_request = true;
167 pl_priv(p_playlist)->request.p_node = get_current_status_node( p_playlist );
168 pl_priv(p_playlist)->request.p_item = get_current_status_item( p_playlist );
169 pl_priv(p_playlist)->request.i_skip = 0;
174 if( !pl_priv(p_playlist)->p_input )
175 { /* FIXME: is this really useful without input? */
176 pl_priv(p_playlist)->status.i_status = PLAYLIST_PAUSED;
180 if( var_GetInteger( pl_priv(p_playlist)->p_input, "state" ) == PAUSE_S )
182 pl_priv(p_playlist)->status.i_status = PLAYLIST_RUNNING;
183 var_SetInteger( pl_priv(p_playlist)->p_input, "state", PLAYING_S );
187 pl_priv(p_playlist)->status.i_status = PLAYLIST_PAUSED;
188 var_SetInteger( pl_priv(p_playlist)->p_input, "state", PAUSE_S );
193 pl_priv(p_playlist)->request.p_node = get_current_status_node( p_playlist );
194 pl_priv(p_playlist)->request.p_item = get_current_status_item( p_playlist );
195 pl_priv(p_playlist)->request.i_skip = (int) va_arg( args, int );
196 /* if already running, keep running */
197 if( pl_priv(p_playlist)->status.i_status != PLAYLIST_STOPPED )
198 pl_priv(p_playlist)->request.i_status = pl_priv(p_playlist)->status.i_status;
199 pl_priv(p_playlist)->request.b_request = true;
203 msg_Err( p_playlist, "unknown playlist query" );
206 vlc_cond_signal( &pl_priv(p_playlist)->signal );
211 /*****************************************************************************
213 *****************************************************************************/
214 /** Enqueue an item for preparsing */
215 int playlist_PreparseEnqueue( playlist_t *p_playlist,
216 input_item_t *p_item, bool b_locked )
218 playlist_private_t *p_sys = pl_priv(p_playlist);
220 PL_LOCK_IF( !b_locked );
221 if( p_sys->p_preparser )
222 playlist_preparser_Push( p_sys->p_preparser, p_item );
223 PL_UNLOCK_IF( !b_locked );
228 int playlist_AskForArtEnqueue( playlist_t *p_playlist,
229 input_item_t *p_item, bool b_locked )
231 playlist_private_t *p_sys = pl_priv(p_playlist);
233 PL_LOCK_IF( !b_locked );
234 if( p_sys->p_fetcher )
235 playlist_fetcher_Push( p_sys->p_fetcher, p_item );
236 PL_UNLOCK_IF( !b_locked );