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;
119 mediacontrol_exception_init( exception );
121 retval = ( mediacontrol_Position* )malloc( sizeof( mediacontrol_Position ) );
122 retval->origin = an_origin;
125 if( an_origin != mediacontrol_AbsolutePosition )
128 /* Relative or ModuloPosition make no sense */
129 RAISE_NULL( mediacontrol_PositionOriginNotSupported,
130 "Only absolute position is valid." );
133 /* We are asked for an AbsolutePosition. */
134 pos = libvlc_media_player_get_time( self->p_media_player );
136 if( a_key == mediacontrol_MediaTime )
142 retval->value = private_mediacontrol_unit_convert( self->p_media_player,
143 mediacontrol_MediaTime,
150 /* Sets the media position */
152 mediacontrol_set_media_position( mediacontrol_Instance *self,
153 const mediacontrol_Position * a_position,
154 mediacontrol_Exception *exception )
158 mediacontrol_exception_init( exception );
160 i_pos = private_mediacontrol_position2microsecond( self->p_media_player, a_position );
161 libvlc_media_player_set_time( self->p_media_player, i_pos / 1000 );
164 /* Starts playing a stream */
166 * Known issues: since moving in the playlist using playlist_Next
167 * or playlist_Prev implies starting to play items, the a_position
168 * argument will be only honored for the 1st item in the list.
170 * XXX:FIXME split moving in the playlist and playing items two
171 * different actions or make playlist_<Next|Prev> accept a time
172 * value to start to play from.
175 mediacontrol_start( mediacontrol_Instance *self,
176 const mediacontrol_Position * a_position,
177 mediacontrol_Exception *exception )
179 libvlc_media_t * p_media;
181 libvlc_exception_t ex;
183 mediacontrol_exception_init( exception );
184 libvlc_exception_init( &ex );
186 p_media = libvlc_media_player_get_media( self->p_media_player );
190 /* No media was defined. */
191 RAISE( mediacontrol_PlaylistException, "No defined media." );
195 /* A media was defined. Get its mrl to reuse it, but reset the options
196 (because start-time may have been set on the previous invocation */
197 psz_name = libvlc_media_get_mrl( p_media );
198 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
200 /* Create a new media */
201 p_media = libvlc_media_new( self->p_instance, psz_name, &ex );
202 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
204 if( a_position->value )
207 libvlc_time_t i_from;
209 /* A start position was specified. Add it to media options */
210 psz_from = ( char * )malloc( 20 * sizeof( char ) );
211 i_from = private_mediacontrol_position2microsecond( self->p_media_player, a_position ) / 1000000;
212 snprintf( psz_from, 20, "start-time=%"PRId64, i_from );
213 libvlc_media_add_option( p_media, psz_from );
214 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
217 libvlc_media_player_set_media( self->p_media_player, p_media );
219 libvlc_media_player_play( self->p_media_player );
224 mediacontrol_pause( mediacontrol_Instance *self,
225 mediacontrol_Exception *exception )
227 mediacontrol_exception_init( exception );
228 libvlc_media_player_pause( self->p_media_player );
232 mediacontrol_resume( mediacontrol_Instance *self,
233 mediacontrol_Exception *exception )
235 mediacontrol_exception_init( exception );
236 libvlc_media_player_pause( self->p_media_player );
240 mediacontrol_stop( mediacontrol_Instance *self,
241 mediacontrol_Exception *exception )
243 mediacontrol_exception_init( exception );
244 libvlc_media_player_stop( self->p_media_player );
247 /**************************************************************************
249 **************************************************************************/
252 mediacontrol_set_mrl( mediacontrol_Instance *self,
253 const char * psz_file,
254 mediacontrol_Exception *exception )
256 libvlc_media_t * p_media;
257 libvlc_exception_t ex;
259 mediacontrol_exception_init( exception );
260 libvlc_exception_init( &ex );
262 p_media = libvlc_media_new( self->p_instance, psz_file, &ex );
263 HANDLE_LIBVLC_EXCEPTION_VOID( &ex );
265 libvlc_media_player_set_media( self->p_media_player, p_media );
269 mediacontrol_get_mrl( mediacontrol_Instance *self,
270 mediacontrol_Exception *exception )
272 libvlc_media_t * p_media;
273 libvlc_exception_t ex;
275 mediacontrol_exception_init( exception );
276 libvlc_exception_init( &ex );
278 p_media = libvlc_media_player_get_media( self->p_media_player );
288 psz_mrl = libvlc_media_get_mrl( p_media );
289 HANDLE_LIBVLC_EXCEPTION_NULL( &ex );
294 /***************************************************************************
296 ***************************************************************************/
298 mediacontrol_StreamInformation *
299 mediacontrol_get_stream_information( mediacontrol_Instance *self,
300 mediacontrol_PositionKey a_key,
301 mediacontrol_Exception *exception )
304 mediacontrol_StreamInformation *retval = NULL;
305 libvlc_media_t * p_media;
306 libvlc_exception_t ex;
308 libvlc_exception_init( &ex );
310 retval = ( mediacontrol_StreamInformation* )
311 malloc( sizeof( mediacontrol_StreamInformation ) );
314 RAISE( mediacontrol_InternalException, "Out of memory" );
318 p_media = libvlc_media_player_get_media( self->p_media_player );
321 /* No p_media defined */
322 retval->streamstatus = mediacontrol_UndefinedStatus;
323 retval->url = strdup( "" );
324 retval->position = 0;
329 libvlc_state_t state;
331 state = libvlc_media_player_get_state( self->p_media_player );
334 case libvlc_NothingSpecial:
335 retval->streamstatus = mediacontrol_UndefinedStatus;
337 case libvlc_Opening :
338 retval->streamstatus = mediacontrol_InitStatus;
340 case libvlc_Buffering:
341 retval->streamstatus = mediacontrol_BufferingStatus;
344 retval->streamstatus = mediacontrol_PlayingStatus;
347 retval->streamstatus = mediacontrol_PauseStatus;
350 retval->streamstatus = mediacontrol_StopStatus;
353 retval->streamstatus = mediacontrol_EndStatus;
356 retval->streamstatus = mediacontrol_ErrorStatus;
359 retval->streamstatus = mediacontrol_UndefinedStatus;
363 retval->url = libvlc_media_get_mrl( p_media );
365 retval->position = libvlc_media_player_get_time( self->p_media_player );
366 retval->length = libvlc_media_player_get_length( self->p_media_player );