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 *****************************************************************************/
28 #include "mediacontrol_internal.h"
29 #include <vlc/mediacontrol.h>
31 #include <vlc/libvlc.h>
32 #include <vlc_common.h>
33 #include <vlc_interface.h>
34 #include <vlc_playlist.h>
38 #include <vlc_input.h>
41 #include <stdlib.h> /* malloc(), free() */
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;
58 libvlc_exception_init( &ex );
59 mediacontrol_exception_init( exception );
61 retval = ( mediacontrol_Instance* )malloc( sizeof( mediacontrol_Instance ) );
63 RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
65 retval->p_instance = libvlc_new( argc, (const char**)argv, &ex );
66 HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
67 retval->p_media_player = libvlc_media_player_new( retval->p_instance, &ex );
68 HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
73 mediacontrol_exit( mediacontrol_Instance *self )
75 libvlc_release( self->p_instance );
79 mediacontrol_get_libvlc_instance( mediacontrol_Instance *self )
81 return self->p_instance;
84 libvlc_media_player_t*
85 mediacontrol_get_media_player( mediacontrol_Instance *self )
87 return self->p_media_player;
90 mediacontrol_Instance *
91 mediacontrol_new_from_instance( libvlc_instance_t* p_instance,
92 mediacontrol_Exception *exception )
94 mediacontrol_Instance* retval;
95 libvlc_exception_t ex;
97 libvlc_exception_init( &ex );
99 retval = ( mediacontrol_Instance* )malloc( sizeof( mediacontrol_Instance ) );
102 RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
104 retval->p_instance = p_instance;
105 retval->p_media_player = libvlc_media_player_new( retval->p_instance, &ex );
106 HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
110 /**************************************************************************
111 * Playback management
112 **************************************************************************/
113 mediacontrol_Position*
114 mediacontrol_get_media_position( mediacontrol_Instance *self,
115 const mediacontrol_PositionOrigin an_origin,
116 const mediacontrol_PositionKey a_key,
117 mediacontrol_Exception *exception )
119 mediacontrol_Position* retval = NULL;
120 libvlc_exception_t ex;
123 mediacontrol_exception_init( exception );
124 libvlc_exception_init( &ex );
126 retval = ( mediacontrol_Position* )malloc( sizeof( mediacontrol_Position ) );
127 retval->origin = an_origin;
130 if( an_origin != mediacontrol_AbsolutePosition )
133 /* Relative or ModuloPosition make no sense */
134 RAISE_NULL( mediacontrol_PositionOriginNotSupported,
135 "Only absolute position is valid." );
138 /* We are asked for an AbsolutePosition. */
139 pos = libvlc_media_player_get_time( self->p_media_player, &ex );
141 if( a_key == mediacontrol_MediaTime )
147 retval->value = private_mediacontrol_unit_convert( self->p_media_player,
148 mediacontrol_MediaTime,
155 /* Sets the media position */
157 mediacontrol_set_media_position( mediacontrol_Instance *self,
158 const mediacontrol_Position * a_position,
159 mediacontrol_Exception *exception )
161 libvlc_exception_t ex;
164 libvlc_exception_init( &ex );
165 mediacontrol_exception_init( exception );
167 i_pos = private_mediacontrol_position2microsecond( self->p_media_player, a_position );
168 libvlc_media_player_set_time( self->p_media_player, i_pos / 1000, &ex );
169 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
172 /* Starts playing a stream */
174 * Known issues: since moving in the playlist using playlist_Next
175 * or playlist_Prev implies starting to play items, the a_position
176 * argument will be only honored for the 1st item in the list.
178 * XXX:FIXME split moving in the playlist and playing items two
179 * different actions or make playlist_<Next|Prev> accept a time
180 * value to start to play from.
183 mediacontrol_start( mediacontrol_Instance *self,
184 const mediacontrol_Position * a_position,
185 mediacontrol_Exception *exception )
187 libvlc_media_t * p_media;
189 libvlc_exception_t ex;
191 mediacontrol_exception_init( exception );
192 libvlc_exception_init( &ex );
194 p_media = libvlc_media_player_get_media( self->p_media_player, &ex );
195 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
199 /* No media was defined. */
200 RAISE( mediacontrol_PlaylistException, "No defined media." );
204 /* A media was defined. Get its mrl to reuse it, but reset the options
205 (because start-time may have been set on the previous invocation */
206 psz_name = libvlc_media_get_mrl( p_media );
207 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
209 /* Create a new media */
210 p_media = libvlc_media_new( self->p_instance, psz_name, &ex );
211 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
213 if( a_position->value )
216 libvlc_time_t i_from;
218 /* A start position was specified. Add it to media options */
219 psz_from = ( char * )malloc( 20 * sizeof( char ) );
220 i_from = private_mediacontrol_position2microsecond( self->p_media_player, a_position ) / 1000000;
221 snprintf( psz_from, 20, "start-time=%"PRId64, i_from );
222 libvlc_media_add_option( p_media, psz_from );
223 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
226 libvlc_media_player_set_media( self->p_media_player, p_media, &ex );
227 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
229 libvlc_media_player_play( self->p_media_player, &ex );
230 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
235 mediacontrol_pause( mediacontrol_Instance *self,
236 mediacontrol_Exception *exception )
238 libvlc_exception_t ex;
240 mediacontrol_exception_init( exception );
241 libvlc_exception_init( &ex );
242 libvlc_media_player_pause( self->p_media_player, &ex );
243 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
247 mediacontrol_resume( mediacontrol_Instance *self,
248 mediacontrol_Exception *exception )
250 libvlc_exception_t ex;
252 mediacontrol_exception_init( exception );
253 libvlc_exception_init( &ex );
254 libvlc_media_player_pause( self->p_media_player, &ex );
255 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
259 mediacontrol_stop( mediacontrol_Instance *self,
260 mediacontrol_Exception *exception )
262 libvlc_exception_t ex;
264 mediacontrol_exception_init( exception );
265 libvlc_exception_init( &ex );
266 libvlc_media_player_stop( self->p_media_player, &ex );
267 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
270 /**************************************************************************
272 **************************************************************************/
275 mediacontrol_set_mrl( mediacontrol_Instance *self,
276 const char * psz_file,
277 mediacontrol_Exception *exception )
279 libvlc_media_t * p_media;
280 libvlc_exception_t ex;
282 mediacontrol_exception_init( exception );
283 libvlc_exception_init( &ex );
285 p_media = libvlc_media_new( self->p_instance, psz_file, &ex );
286 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
288 libvlc_media_player_set_media( self->p_media_player, p_media, &ex );
289 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
293 mediacontrol_get_mrl( mediacontrol_Instance *self,
294 mediacontrol_Exception *exception )
296 libvlc_media_t * p_media;
297 libvlc_exception_t ex;
299 mediacontrol_exception_init( exception );
300 libvlc_exception_init( &ex );
302 p_media = libvlc_media_player_get_media( self->p_media_player, &ex );
303 HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
313 psz_mrl = libvlc_media_get_mrl( p_media );
314 HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
319 /***************************************************************************
321 ***************************************************************************/
323 mediacontrol_StreamInformation *
324 mediacontrol_get_stream_information( mediacontrol_Instance *self,
325 mediacontrol_PositionKey a_key,
326 mediacontrol_Exception *exception )
329 mediacontrol_StreamInformation *retval = NULL;
330 libvlc_media_t * p_media;
331 libvlc_exception_t ex;
333 libvlc_exception_init( &ex );
335 retval = ( mediacontrol_StreamInformation* )
336 malloc( sizeof( mediacontrol_StreamInformation ) );
339 RAISE( mediacontrol_InternalException, "Out of memory" );
343 p_media = libvlc_media_player_get_media( self->p_media_player, &ex );
344 if( libvlc_exception_raised( &ex ) )
347 RAISE( mediacontrol_InternalException, libvlc_errmsg( ) );
348 libvlc_exception_clear( &ex );
354 /* No p_media defined */
355 retval->streamstatus = mediacontrol_UndefinedStatus;
356 retval->url = strdup( "" );
357 retval->position = 0;
362 libvlc_state_t state;
364 state = libvlc_media_player_get_state( self->p_media_player, &ex );
365 if( libvlc_exception_raised( &ex ) )
368 RAISE( mediacontrol_InternalException, libvlc_errmsg() );
369 libvlc_exception_clear( &ex );
375 case libvlc_NothingSpecial:
376 retval->streamstatus = mediacontrol_UndefinedStatus;
378 case libvlc_Opening :
379 retval->streamstatus = mediacontrol_InitStatus;
381 case libvlc_Buffering:
382 retval->streamstatus = mediacontrol_BufferingStatus;
385 retval->streamstatus = mediacontrol_PlayingStatus;
388 retval->streamstatus = mediacontrol_PauseStatus;
391 retval->streamstatus = mediacontrol_StopStatus;
394 retval->streamstatus = mediacontrol_EndStatus;
397 retval->streamstatus = mediacontrol_ErrorStatus;
400 retval->streamstatus = mediacontrol_UndefinedStatus;
404 retval->url = libvlc_media_get_mrl( p_media );
406 retval->position = libvlc_media_player_get_time( self->p_media_player, &ex );
407 if( libvlc_exception_raised( &ex ) )
409 libvlc_exception_clear( &ex );
410 retval->position = 0;
413 retval->length = libvlc_media_player_get_length( self->p_media_player, &ex );
414 if( libvlc_exception_raised( &ex ) )
416 libvlc_exception_clear( &ex );