1 /*****************************************************************************
2 * core.c: Core functions : init, playlist, stream management
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
7 * Authors: Olivier Aubert <olivier.aubert@liris.univ-lyon1.fr>
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.
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.
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 *****************************************************************************/
24 #include "mediacontrol_internal.h"
25 #include <vlc/mediacontrol.h>
27 #include <vlc/libvlc.h>
28 #include <vlc_interface.h>
29 #include <vlc_playlist.h>
33 #include <vlc_input.h>
36 #include <stdlib.h> /* malloc(), free() */
39 #include <errno.h> /* ENOMEM */
46 #ifdef HAVE_SYS_TIME_H
47 # include <sys/time.h>
49 #ifdef HAVE_SYS_TYPES_H
50 # include <sys/types.h>
53 mediacontrol_Instance* mediacontrol_new( int argc, char** argv, mediacontrol_Exception *exception )
55 mediacontrol_Instance* retval;
56 libvlc_exception_t ex;
57 char** ppsz_argv = NULL;
60 libvlc_exception_init( &ex );
61 mediacontrol_exception_init( exception );
63 retval = ( mediacontrol_Instance* )malloc( sizeof( mediacontrol_Instance ) );
65 RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
67 /* Prepend a dummy argv[0] so that users of the API do not have to
68 do it themselves, and can simply provide the args list. */
69 ppsz_argv = malloc( ( argc + 2 ) * sizeof( char * ) ) ;
71 RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
73 ppsz_argv[0] = strdup("vlc");
74 for ( i_index = 0; i_index < argc; i_index++ )
75 ppsz_argv[i_index + 1] = argv[i_index];
76 ppsz_argv[argc + 1] = NULL;
78 retval->p_instance = libvlc_new( argc + 1, ppsz_argv, &ex );
79 retval->p_playlist = retval->p_instance->p_libvlc_int->p_playlist;
80 HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
85 mediacontrol_exit( mediacontrol_Instance *self )
87 libvlc_exception_t ex;
88 libvlc_exception_init( &ex );
90 libvlc_destroy( self->p_instance, &ex );
94 mediacontrol_get_libvlc_instance( mediacontrol_Instance *self )
96 return self->p_instance;
99 mediacontrol_Instance *
100 mediacontrol_new_from_instance( libvlc_instance_t* p_instance,
101 mediacontrol_Exception *exception )
103 mediacontrol_Instance* retval;
105 retval = ( mediacontrol_Instance* )malloc( sizeof( mediacontrol_Instance ) );
108 RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
110 retval->p_instance = p_instance;
111 retval->p_playlist = retval->p_instance->p_libvlc_int->p_playlist;
115 /**************************************************************************
116 * Playback management
117 **************************************************************************/
118 mediacontrol_Position*
119 mediacontrol_get_media_position( mediacontrol_Instance *self,
120 const mediacontrol_PositionOrigin an_origin,
121 const mediacontrol_PositionKey a_key,
122 mediacontrol_Exception *exception )
124 mediacontrol_Position* retval = NULL;
125 libvlc_exception_t ex;
127 libvlc_media_instance_t * p_mi;
129 mediacontrol_exception_init( exception );
130 libvlc_exception_init( &ex );
132 retval = ( mediacontrol_Position* )malloc( sizeof( mediacontrol_Position ) );
133 retval->origin = an_origin;
136 p_mi = libvlc_playlist_get_media_instance( self->p_instance, &ex);
137 HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
139 if( an_origin != mediacontrol_AbsolutePosition )
141 libvlc_media_instance_destroy_and_detach( p_mi );
142 /* Relative or ModuloPosition make no sense */
143 RAISE_NULL( mediacontrol_PositionOriginNotSupported,
144 "Only absolute position is valid." );
147 /* We are asked for an AbsolutePosition. */
148 pos = libvlc_media_instance_get_time( p_mi, &ex );
150 if( a_key == mediacontrol_MediaTime )
156 if( ! self->p_playlist->p_input )
158 libvlc_media_instance_destroy_and_detach( p_mi );
159 RAISE_NULL( mediacontrol_InternalException,
162 retval->value = mediacontrol_unit_convert( self->p_playlist->p_input,
163 mediacontrol_MediaTime,
167 libvlc_media_instance_destroy_and_detach( p_mi );
171 /* Sets the media position */
173 mediacontrol_set_media_position( mediacontrol_Instance *self,
174 const mediacontrol_Position * a_position,
175 mediacontrol_Exception *exception )
177 libvlc_media_instance_t * p_mi;
178 libvlc_exception_t ex;
181 libvlc_exception_init( &ex );
182 mediacontrol_exception_init( exception );
184 p_mi = libvlc_playlist_get_media_instance( self->p_instance, &ex);
185 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
187 i_pos = mediacontrol_position2microsecond( self->p_playlist->p_input, a_position );
188 libvlc_media_instance_set_time( p_mi, i_pos / 1000, &ex );
189 libvlc_media_instance_destroy_and_detach( p_mi );
190 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
193 /* Starts playing a stream */
195 * Known issues: since moving in the playlist using playlist_Next
196 * or playlist_Prev implies starting to play items, the a_position
197 * argument will be only honored for the 1st item in the list.
199 * XXX:FIXME split moving in the playlist and playing items two
200 * different actions or make playlist_<Next|Prev> accept a time
201 * value to start to play from.
204 mediacontrol_start( mediacontrol_Instance *self,
205 const mediacontrol_Position * a_position,
206 mediacontrol_Exception *exception )
208 playlist_t * p_playlist = self->p_playlist;
210 mediacontrol_exception_init( exception );
213 RAISE( mediacontrol_PlaylistException, "No available playlist" );
217 vlc_mutex_lock( &p_playlist->object_lock );
218 if( p_playlist->items.i_size )
221 char *psz_from = NULL;
223 psz_from = ( char * )malloc( 20 * sizeof( char ) );
224 if( psz_from && p_playlist->status.p_item )
226 i_from = mediacontrol_position2microsecond( p_playlist->p_input, a_position ) / 1000000;
229 snprintf( psz_from, 20, "start-time=%i", i_from );
230 input_ItemAddOption( p_playlist->status.p_item->p_input, psz_from );
234 vlc_mutex_unlock( &p_playlist->object_lock );
235 playlist_Play( p_playlist );
239 RAISE( mediacontrol_PlaylistException, "Empty playlist." );
240 vlc_mutex_unlock( &p_playlist->object_lock );
245 mediacontrol_pause( mediacontrol_Instance *self,
246 const mediacontrol_Position * a_position,
247 mediacontrol_Exception *exception )
249 input_thread_t *p_input = self->p_playlist->p_input;
251 /* FIXME: use the a_position parameter */
252 mediacontrol_exception_init( exception );
253 if( p_input != NULL )
255 var_SetInteger( p_input, "state", PAUSE_S );
259 RAISE( mediacontrol_InternalException, "No input" );
264 mediacontrol_resume( mediacontrol_Instance *self,
265 const mediacontrol_Position * a_position,
266 mediacontrol_Exception *exception )
268 input_thread_t *p_input = self->p_playlist->p_input;
270 /* FIXME: use the a_position parameter */
271 mediacontrol_exception_init( exception );
272 if( p_input != NULL )
274 var_SetInteger( p_input, "state", PAUSE_S );
278 RAISE( mediacontrol_InternalException, "No input" );
283 mediacontrol_stop( mediacontrol_Instance *self,
284 const mediacontrol_Position * a_position,
285 mediacontrol_Exception *exception )
287 /* FIXME: use the a_position parameter */
288 mediacontrol_exception_init( exception );
289 if( !self->p_playlist )
291 RAISE( mediacontrol_PlaylistException, "No playlist" );
294 playlist_Stop( self->p_playlist );
297 /**************************************************************************
298 * Playlist management
299 **************************************************************************/
302 mediacontrol_playlist_add_item( mediacontrol_Instance *self,
303 const char * psz_file,
304 mediacontrol_Exception *exception )
306 libvlc_exception_t ex;
308 mediacontrol_exception_init( exception );
309 libvlc_exception_init( &ex );
311 libvlc_playlist_add( self->p_instance, psz_file, psz_file, &ex );
312 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
316 mediacontrol_playlist_next_item( mediacontrol_Instance *self,
317 mediacontrol_Exception *exception )
319 libvlc_exception_t ex;
321 mediacontrol_exception_init( exception );
322 libvlc_exception_init( &ex );
324 libvlc_playlist_next( self->p_instance, &ex );
325 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
329 mediacontrol_playlist_clear( mediacontrol_Instance *self,
330 mediacontrol_Exception *exception )
332 libvlc_exception_t ex;
334 mediacontrol_exception_init( exception );
335 libvlc_exception_init( &ex );
337 libvlc_playlist_clear( self->p_instance, &ex );
338 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
341 mediacontrol_PlaylistSeq *
342 mediacontrol_playlist_get_list( mediacontrol_Instance *self,
343 mediacontrol_Exception *exception )
345 mediacontrol_PlaylistSeq *retval = NULL;
347 playlist_t * p_playlist = self->p_playlist;
350 mediacontrol_exception_init( exception );
353 RAISE( mediacontrol_PlaylistException, "No playlist" );
357 vlc_mutex_lock( &p_playlist->object_lock );
358 i_playlist_size = p_playlist->current.i_size;
360 retval = mediacontrol_PlaylistSeq__alloc( i_playlist_size );
362 for( i_index = 0 ; i_index < i_playlist_size ; i_index++ )
364 retval->data[i_index] = strdup( ARRAY_VAL(p_playlist->current, i_index)->p_input->psz_uri );
366 vlc_mutex_unlock( &p_playlist->object_lock );
371 /***************************************************************************
373 ***************************************************************************/
375 mediacontrol_StreamInformation *
376 mediacontrol_get_stream_information( mediacontrol_Instance *self,
377 mediacontrol_PositionKey a_key,
378 mediacontrol_Exception *exception )
380 mediacontrol_StreamInformation *retval = NULL;
381 input_thread_t *p_input = self->p_playlist->p_input;
384 retval = ( mediacontrol_StreamInformation* )
385 malloc( sizeof( mediacontrol_StreamInformation ) );
388 RAISE( mediacontrol_InternalException, "Out of memory" );
394 /* No p_input defined */
395 retval->streamstatus = mediacontrol_UndefinedStatus;
396 retval->url = strdup( "None" );
397 retval->position = 0;
402 switch( var_GetInteger( p_input, "state" ) )
405 retval->streamstatus = mediacontrol_PlayingStatus;
408 retval->streamstatus = mediacontrol_PauseStatus;
411 retval->streamstatus = mediacontrol_InitStatus;
414 retval->streamstatus = mediacontrol_EndStatus;
417 retval->streamstatus = mediacontrol_UndefinedStatus;
421 retval->url = strdup( input_GetItem(p_input)->psz_uri );
423 /* TIME and LENGTH are in microseconds. We want them in ms */
424 var_Get( p_input, "time", &val);
425 retval->position = val.i_time / 1000;
427 var_Get( p_input, "length", &val);
428 retval->length = val.i_time / 1000;
430 retval->position = mediacontrol_unit_convert( p_input,
431 mediacontrol_MediaTime, a_key,
433 retval->length = mediacontrol_unit_convert( p_input,
434 mediacontrol_MediaTime, a_key,