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 #include <sys/types.h>
51 mediacontrol_Instance* mediacontrol_new( int argc, char** argv, mediacontrol_Exception *exception )
53 mediacontrol_Instance* retval;
54 libvlc_exception_t ex;
56 libvlc_exception_init( &ex );
57 mediacontrol_exception_init( exception );
59 retval = ( mediacontrol_Instance* )malloc( sizeof( mediacontrol_Instance ) );
61 RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
63 retval->p_instance = libvlc_new( argc, (const char**)argv, &ex );
64 HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
65 retval->p_media_player = libvlc_media_player_new( retval->p_instance );
66 if( !retval->p_media_player )
67 RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
72 mediacontrol_exit( mediacontrol_Instance *self )
74 libvlc_release( self->p_instance );
78 mediacontrol_get_libvlc_instance( mediacontrol_Instance *self )
80 return self->p_instance;
83 libvlc_media_player_t*
84 mediacontrol_get_media_player( mediacontrol_Instance *self )
86 return self->p_media_player;
89 mediacontrol_Instance *
90 mediacontrol_new_from_instance( libvlc_instance_t* p_instance,
91 mediacontrol_Exception *exception )
93 mediacontrol_Instance* retval;
95 retval = ( mediacontrol_Instance* )malloc( sizeof( mediacontrol_Instance ) );
98 RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
100 retval->p_instance = p_instance;
101 retval->p_media_player = libvlc_media_player_new( retval->p_instance );
102 if( ! retval->p_media_player )
103 RAISE_NULL( mediacontrol_InternalException, "Out of memory" );
107 /**************************************************************************
108 * Playback management
109 **************************************************************************/
110 mediacontrol_Position*
111 mediacontrol_get_media_position( mediacontrol_Instance *self,
112 const mediacontrol_PositionOrigin an_origin,
113 const mediacontrol_PositionKey a_key,
114 mediacontrol_Exception *exception )
116 mediacontrol_Position* retval = NULL;
117 libvlc_exception_t ex;
120 mediacontrol_exception_init( exception );
121 libvlc_exception_init( &ex );
123 retval = ( mediacontrol_Position* )malloc( sizeof( mediacontrol_Position ) );
124 retval->origin = an_origin;
127 if( an_origin != mediacontrol_AbsolutePosition )
130 /* Relative or ModuloPosition make no sense */
131 RAISE_NULL( mediacontrol_PositionOriginNotSupported,
132 "Only absolute position is valid." );
135 /* We are asked for an AbsolutePosition. */
136 pos = libvlc_media_player_get_time( self->p_media_player, &ex );
138 if( a_key == mediacontrol_MediaTime )
144 retval->value = private_mediacontrol_unit_convert( self->p_media_player,
145 mediacontrol_MediaTime,
152 /* Sets the media position */
154 mediacontrol_set_media_position( mediacontrol_Instance *self,
155 const mediacontrol_Position * a_position,
156 mediacontrol_Exception *exception )
158 libvlc_exception_t ex;
161 libvlc_exception_init( &ex );
162 mediacontrol_exception_init( exception );
164 i_pos = private_mediacontrol_position2microsecond( self->p_media_player, a_position );
165 libvlc_media_player_set_time( self->p_media_player, i_pos / 1000, &ex );
166 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
169 /* Starts playing a stream */
171 * Known issues: since moving in the playlist using playlist_Next
172 * or playlist_Prev implies starting to play items, the a_position
173 * argument will be only honored for the 1st item in the list.
175 * XXX:FIXME split moving in the playlist and playing items two
176 * different actions or make playlist_<Next|Prev> accept a time
177 * value to start to play from.
180 mediacontrol_start( mediacontrol_Instance *self,
181 const mediacontrol_Position * a_position,
182 mediacontrol_Exception *exception )
184 libvlc_media_t * p_media;
186 libvlc_exception_t ex;
188 mediacontrol_exception_init( exception );
189 libvlc_exception_init( &ex );
191 p_media = libvlc_media_player_get_media( self->p_media_player );
195 /* No media was defined. */
196 RAISE( mediacontrol_PlaylistException, "No defined media." );
200 /* A media was defined. Get its mrl to reuse it, but reset the options
201 (because start-time may have been set on the previous invocation */
202 psz_name = libvlc_media_get_mrl( p_media );
203 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
205 /* Create a new media */
206 p_media = libvlc_media_new( self->p_instance, psz_name, &ex );
207 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
209 if( a_position->value )
212 libvlc_time_t i_from;
214 /* A start position was specified. Add it to media options */
215 psz_from = ( char * )malloc( 20 * sizeof( char ) );
216 i_from = private_mediacontrol_position2microsecond( self->p_media_player, a_position ) / 1000000;
217 snprintf( psz_from, 20, "start-time=%"PRId64, i_from );
218 libvlc_media_add_option( p_media, psz_from );
219 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
222 libvlc_media_player_set_media( self->p_media_player, p_media );
224 libvlc_media_player_play( self->p_media_player, &ex );
225 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
230 mediacontrol_pause( mediacontrol_Instance *self,
231 mediacontrol_Exception *exception )
233 libvlc_exception_t ex;
235 mediacontrol_exception_init( exception );
236 libvlc_exception_init( &ex );
237 libvlc_media_player_pause( self->p_media_player, &ex );
238 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
242 mediacontrol_resume( mediacontrol_Instance *self,
243 mediacontrol_Exception *exception )
245 libvlc_exception_t ex;
247 mediacontrol_exception_init( exception );
248 libvlc_exception_init( &ex );
249 libvlc_media_player_pause( self->p_media_player, &ex );
250 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
254 mediacontrol_stop( mediacontrol_Instance *self,
255 mediacontrol_Exception *exception )
257 libvlc_exception_t ex;
259 mediacontrol_exception_init( exception );
260 libvlc_exception_init( &ex );
261 libvlc_media_player_stop( self->p_media_player );
264 /**************************************************************************
266 **************************************************************************/
269 mediacontrol_set_mrl( mediacontrol_Instance *self,
270 const char * psz_file,
271 mediacontrol_Exception *exception )
273 libvlc_media_t * p_media;
274 libvlc_exception_t ex;
276 mediacontrol_exception_init( exception );
277 libvlc_exception_init( &ex );
279 p_media = libvlc_media_new( self->p_instance, psz_file, &ex );
280 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
282 libvlc_media_player_set_media( self->p_media_player, p_media );
286 mediacontrol_get_mrl( mediacontrol_Instance *self,
287 mediacontrol_Exception *exception )
289 libvlc_media_t * p_media;
290 libvlc_exception_t ex;
292 mediacontrol_exception_init( exception );
293 libvlc_exception_init( &ex );
295 p_media = libvlc_media_player_get_media( self->p_media_player );
305 psz_mrl = libvlc_media_get_mrl( p_media );
306 HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
311 /***************************************************************************
313 ***************************************************************************/
315 mediacontrol_StreamInformation *
316 mediacontrol_get_stream_information( mediacontrol_Instance *self,
317 mediacontrol_PositionKey a_key,
318 mediacontrol_Exception *exception )
321 mediacontrol_StreamInformation *retval = NULL;
322 libvlc_media_t * p_media;
323 libvlc_exception_t ex;
325 libvlc_exception_init( &ex );
327 retval = ( mediacontrol_StreamInformation* )
328 malloc( sizeof( mediacontrol_StreamInformation ) );
331 RAISE( mediacontrol_InternalException, "Out of memory" );
335 p_media = libvlc_media_player_get_media( self->p_media_player );
338 /* No p_media defined */
339 retval->streamstatus = mediacontrol_UndefinedStatus;
340 retval->url = strdup( "" );
341 retval->position = 0;
346 libvlc_state_t state;
348 state = libvlc_media_player_get_state( self->p_media_player );
351 case libvlc_NothingSpecial:
352 retval->streamstatus = mediacontrol_UndefinedStatus;
354 case libvlc_Opening :
355 retval->streamstatus = mediacontrol_InitStatus;
357 case libvlc_Buffering:
358 retval->streamstatus = mediacontrol_BufferingStatus;
361 retval->streamstatus = mediacontrol_PlayingStatus;
364 retval->streamstatus = mediacontrol_PauseStatus;
367 retval->streamstatus = mediacontrol_StopStatus;
370 retval->streamstatus = mediacontrol_EndStatus;
373 retval->streamstatus = mediacontrol_ErrorStatus;
376 retval->streamstatus = mediacontrol_UndefinedStatus;
380 retval->url = libvlc_media_get_mrl( p_media );
382 retval->position = libvlc_media_player_get_time( self->p_media_player, &ex );
383 if( libvlc_exception_raised( &ex ) )
385 libvlc_exception_clear( &ex );
386 retval->position = 0;
389 retval->length = libvlc_media_player_get_length( self->p_media_player, &ex );
390 if( libvlc_exception_raised( &ex ) )
392 libvlc_exception_clear( &ex );