git.sesse.net Git - vlc/blob - src/control/vlm.c

   1 /*****************************************************************************
   2  * vlm.c: libvlc new API VLM handling functions
   3  *****************************************************************************
   4  * Copyright (C) 2005 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *
   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.
  13  *
  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.
  18  *
  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  *****************************************************************************/
  23
  24 #include <vlc/libvlc.h>
  25 #include <vlc/libvlc_vlm.h>
  26 #include <vlc_es.h>
  27 #include <vlc_input.h>
  28 #include <vlc_vlm.h>
  29
  30 #include "libvlc_internal.h"
  31
  32 #if 0
  33 /* local function to be used in libvlc_vlm_show_media only */
  34 static char* recurse_answer( char* psz_prefix, vlm_message_t *p_answer ) {
  35     char* psz_childprefix;
  36     char* psz_response="";
  37     char* response_tmp;
  38     int i;
  39     vlm_message_t *aw_child, **paw_child;
  40
  41     asprintf( &psz_childprefix, "%s%s.", psz_prefix, p_answer->psz_name );
  42
  43     if ( p_answer->i_child )
  44     {
  45         paw_child = p_answer->child;
  46         aw_child = *( paw_child );
  47         for( i = 0; i < p_answer->i_child; i++ )
  48         {
  49             asprintf( &response_tmp, "%s%s%s:%s\n",
  50                       psz_response, psz_prefix, aw_child->psz_name,
  51                       aw_child->psz_value );
  52             free( psz_response );
  53             psz_response = response_tmp;
  54             if ( aw_child->i_child )
  55             {
  56                 asprintf(&response_tmp, "%s%s", psz_response,
  57                          recurse_answer(psz_childprefix, aw_child));
  58                 free( psz_response );
  59                 psz_response = response_tmp;
  60             }
  61             paw_child++;
  62             aw_child = *( paw_child );
  63         }
  64     }
  65     free( psz_childprefix );
  66     return psz_response;
  67 }
  68
  69 char* libvlc_vlm_show_media( libvlc_instance_t *p_instance, char *psz_name,
  70                              libvlc_exception_t *p_exception )
  71 {
  72     char *psz_message;
  73     vlm_message_t *answer;
  74     char *psz_response;
  75
  76     CHECK_VLM;
  77     asprintf( &psz_message, "show %s", psz_name );
  78     asprintf( &psz_response, "", psz_name );
  79     vlm_ExecuteCommand( p_instance->p_vlm, psz_message, &answer );
  80     if( answer->psz_value )
  81     {
  82         libvlc_exception_raise( p_exception, "Unable to call show %s: %s",
  83                                 psz_name, answer->psz_value );
  84     }
  85     else
  86     {
  87         if ( answer->child )
  88         {
  89             psz_response = recurse_answer( "", answer );
  90         }
  91     }
  92     free( psz_message );
  93     return(psz_response );
  94 }
  95 #else
  96
  97 char* libvlc_vlm_show_media( libvlc_instance_t *p_instance,
  98                              const char *psz_name,
  99                              libvlc_exception_t *p_exception )
 100 {
 101     (void)p_instance;
 102     /* FIXME is it needed ? */
 103     libvlc_exception_raise( p_exception, "Unable to call show %s", psz_name );
 104     return NULL;
 105 }
 106
 107 #endif /* 0 */
 108 /* VLM events callback. Transmit to libvlc */
 109 static int VlmEvent( vlc_object_t *p_this, const char * name,
 110                      vlc_value_t old_val, vlc_value_t newval, void *param )
 111 {
 112     vlm_event_t *event = (vlm_event_t*)newval.p_address;
 113     libvlc_event_manager_t *p_event_manager = (libvlc_event_manager_t *) param;
 114     libvlc_event_t libvlc_event;
 115
 116     libvlc_event.u.vlm_media_event.psz_media_name = event->psz_name;
 117
 118     switch( event->i_type )
 119     {
 120     case VLM_EVENT_MEDIA_ADDED:
 121         libvlc_event.type = libvlc_VlmMediaAdded;
 122         break;
 123     case VLM_EVENT_MEDIA_REMOVED:
 124         libvlc_event.type = libvlc_VlmMediaRemoved;
 125         break;
 126     case VLM_EVENT_MEDIA_CHANGED:
 127         libvlc_event.type = libvlc_VlmMediaChanged;
 128         break;
 129     case VLM_EVENT_MEDIA_INSTANCE_STARTED:
 130         libvlc_event.type = libvlc_VlmMediaInstanceStarted;
 131         break;
 132     case VLM_EVENT_MEDIA_INSTANCE_STOPPED:
 133         libvlc_event.type = libvlc_VlmMediaInstanceStopped;
 134         break;
 135     }
 136     libvlc_event_send( p_event_manager, &libvlc_event );
 137     return 0;
 138 }
 139
 140 static int libvlc_vlm_init( libvlc_instance_t *p_instance,
 141                             libvlc_exception_t *p_exception )
 142 {
 143     if( !p_instance->p_event_manager )
 144     {
 145         p_instance->p_event_manager = libvlc_event_manager_new( p_instance->p_vlm,
 146                                                                 p_instance, p_exception );
 147         libvlc_event_manager_register_event_type( p_instance->p_event_manager,
 148                                                   libvlc_VlmMediaAdded, NULL );
 149         libvlc_event_manager_register_event_type( p_instance->p_event_manager,
 150                                                   libvlc_VlmMediaRemoved, NULL );
 151         libvlc_event_manager_register_event_type( p_instance->p_event_manager,
 152                                                   libvlc_VlmMediaChanged, NULL );
 153         libvlc_event_manager_register_event_type( p_instance->p_event_manager,
 154                                                   libvlc_VlmMediaInstanceStarted, NULL );
 155         libvlc_event_manager_register_event_type( p_instance->p_event_manager,
 156                                                   libvlc_VlmMediaInstanceStopped, NULL );
 157     }
 158
 159     if( !p_instance->p_vlm )
 160     {
 161         p_instance->p_vlm = vlm_New( p_instance->p_libvlc_int );
 162         var_AddCallback( (vlc_object_t *)p_instance->p_vlm, "intf-event", VlmEvent,
 163                          p_instance->p_event_manager );
 164     }
 165     if( !p_instance->p_vlm )
 166     {
 167         libvlc_exception_raise( p_exception,
 168                                 "Unable to create VLM." );
 169         return VLC_EGENERIC;
 170     }
 171     return VLC_SUCCESS;
 172 }
 173 #define VLM_RET(p,ret) do {                                     \
 174     if( libvlc_vlm_init( p_instance, p_exception ) ) return ret;\
 175     (p) = p_instance->p_vlm;                                    \
 176   } while(0)
 177 #define VLM(p) VLM_RET(p,)
 178
 179 static vlm_media_instance_t *
 180 libvlc_vlm_get_media_instance( libvlc_instance_t *p_instance,
 181                                const char *psz_name, int i_minstance_idx,
 182                                libvlc_exception_t *p_exception )
 183 {
 184     vlm_t *p_vlm;
 185     vlm_media_instance_t **pp_minstance;
 186     vlm_media_instance_t *p_minstance;
 187     int i_minstance;
 188     int64_t id;
 189
 190     VLM_RET(p_vlm, NULL);
 191
 192     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 193         vlm_Control( p_vlm, VLM_GET_MEDIA_INSTANCES, id, &pp_minstance,
 194                      &i_minstance ) )
 195     {
 196         libvlc_exception_raise( p_exception, "Unable to get %s instances",
 197                                 psz_name );
 198         return NULL;
 199     }
 200     p_minstance = NULL;
 201     if( i_minstance_idx >= 0 && i_minstance_idx < i_minstance )
 202     {
 203         p_minstance = pp_minstance[i_minstance_idx];
 204         TAB_REMOVE( i_minstance, pp_minstance, p_minstance );
 205     }
 206     while( i_minstance > 0 )
 207         vlm_media_instance_Delete( pp_minstance[--i_minstance] );
 208     TAB_CLEAN( i_minstance, pp_minstance );
 209     return p_minstance;
 210 }
 211
 212
 213 void libvlc_vlm_release( libvlc_instance_t *p_instance,
 214                          libvlc_exception_t *p_exception)
 215 {
 216     vlm_t *p_vlm;
 217
 218     VLM(p_vlm);
 219
 220     vlm_Delete( p_vlm );
 221 }
 222
 223 void libvlc_vlm_add_broadcast( libvlc_instance_t *p_instance,
 224                                const char *psz_name,
 225                                const char *psz_input,
 226                                const char *psz_output, int i_options,
 227                                const char * const *ppsz_options,
 228                                int b_enabled, int b_loop,
 229                                libvlc_exception_t *p_exception )
 230 {
 231     vlm_t *p_vlm;
 232     vlm_media_t m;
 233     int n;
 234
 235     VLM(p_vlm);
 236
 237     vlm_media_Init( &m );
 238     m.psz_name = strdup( psz_name );
 239     m.b_enabled = b_enabled;
 240     m.b_vod = false;
 241     m.broadcast.b_loop = b_loop;
 242     if( psz_input )
 243         TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
 244     if( psz_output )
 245         m.psz_output = strdup( psz_output );
 246     for( n = 0; n < i_options; n++ )
 247         TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
 248
 249     n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
 250     vlm_media_Clean( &m );
 251     if( n )
 252         libvlc_exception_raise( p_exception, "Media %s creation failed",
 253                                 psz_name );
 254 }
 255
 256 void libvlc_vlm_add_vod( libvlc_instance_t *p_instance, const char *psz_name,
 257                          const char *psz_input, int i_options,
 258                          const char * const *ppsz_options, int b_enabled,
 259                          const char *psz_mux, libvlc_exception_t *p_exception )
 260 {
 261     vlm_t *p_vlm;
 262     vlm_media_t m;
 263     int n;
 264
 265     VLM(p_vlm);
 266
 267     vlm_media_Init( &m );
 268     m.psz_name = strdup( psz_name );
 269     m.b_enabled = b_enabled;
 270     m.b_vod = true;
 271     m.vod.psz_mux = psz_mux ? strdup( psz_mux ) : NULL;
 272     if( psz_input )
 273         TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
 274     for( n = 0; n < i_options; n++ )
 275         TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
 276
 277     n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
 278     vlm_media_Clean( &m );
 279     if( n )
 280         libvlc_exception_raise( p_exception, "Media %s creation failed",
 281                                 psz_name );
 282 }
 283
 284 void libvlc_vlm_del_media( libvlc_instance_t *p_instance, const char *psz_name,
 285                            libvlc_exception_t *p_exception )
 286 {
 287     vlm_t *p_vlm;
 288     int64_t id;
 289
 290     VLM(p_vlm);
 291
 292     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 293         vlm_Control( p_vlm, VLM_DEL_MEDIA, id ) )
 294     {
 295         libvlc_exception_raise( p_exception, "Unable to delete %s", psz_name );
 296     }
 297 }
 298
 299 #define VLM_CHANGE(psz_error, code ) do {   \
 300     vlm_media_t *p_media;   \
 301     vlm_t *p_vlm;           \
 302     int64_t id;             \
 303     VLM(p_vlm);             \
 304     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||    \
 305         vlm_Control( p_vlm, VLM_GET_MEDIA, id, &p_media ) ) {       \
 306         libvlc_exception_raise( p_exception, psz_error, psz_name ); \
 307         return;             \
 308     }                       \
 309     if( !p_media ) goto error;                                      \
 310                             \
 311     code;                   \
 312                             \
 313     if( vlm_Control( p_vlm, VLM_CHANGE_MEDIA, p_media ) ) {         \
 314         vlm_media_Delete( p_media );                                \
 315         goto error;         \
 316     }                       \
 317     vlm_media_Delete( p_media );                                    \
 318     return;                 \
 319   error:                    \
 320     libvlc_exception_raise( p_exception, psz_error, psz_name );\
 321   } while(0)
 322
 323 void libvlc_vlm_set_enabled( libvlc_instance_t *p_instance,
 324                              const char *psz_name, int b_enabled,
 325                              libvlc_exception_t *p_exception )
 326 {
 327 #define VLM_CHANGE_CODE { p_media->b_enabled = b_enabled; }
 328     VLM_CHANGE( "Unable to delete %s", VLM_CHANGE_CODE );
 329 #undef VLM_CHANGE_CODE
 330 }
 331
 332 void libvlc_vlm_set_loop( libvlc_instance_t *p_instance, const char *psz_name,
 333                           int b_loop, libvlc_exception_t *p_exception )
 334 {
 335 #define VLM_CHANGE_CODE { p_media->broadcast.b_loop = b_loop; }
 336     VLM_CHANGE( "Unable to change %s loop property", VLM_CHANGE_CODE );
 337 #undef VLM_CHANGE_CODE
 338 }
 339
 340 void libvlc_vlm_set_mux( libvlc_instance_t *p_instance, const char *psz_name,
 341                          const char *psz_mux, libvlc_exception_t *p_exception )
 342 {
 343 #define VLM_CHANGE_CODE { if( p_media->b_vod ) { \
 344                             free( p_media->vod.psz_mux ); \
 345                             p_media->vod.psz_mux = psz_mux \
 346                                  ? strdup( psz_mux ) : NULL; \
 347                           } }
 348     VLM_CHANGE( "Unable to change %s mux property", VLM_CHANGE_CODE );
 349 #undef VLM_CHANGE_CODE
 350 }
 351
 352 void libvlc_vlm_set_output( libvlc_instance_t *p_instance,
 353                             const char *psz_name, const char *psz_output,
 354                             libvlc_exception_t *p_exception )
 355 {
 356 #define VLM_CHANGE_CODE { free( p_media->psz_output ); \
 357                           p_media->psz_output = strdup( psz_output ); }
 358     VLM_CHANGE( "Unable to change %s output property", VLM_CHANGE_CODE );
 359 #undef VLM_CHANGE_CODE
 360 }
 361
 362 void libvlc_vlm_set_input( libvlc_instance_t *p_instance,
 363                            const char *psz_name, const char *psz_input,
 364                            libvlc_exception_t *p_exception )
 365 {
 366 #define VLM_CHANGE_CODE { while( p_media->i_input > 0 ) \
 367                             free( p_media->ppsz_input[--p_media->i_input] );\
 368                           TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
 369                                       strdup(psz_input) ); }
 370     VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
 371 #undef VLM_CHANGE_CODE
 372 }
 373
 374 void libvlc_vlm_add_input( libvlc_instance_t *p_instance,
 375                            const char *psz_name, const char *psz_input,
 376                            libvlc_exception_t *p_exception )
 377 {
 378 #define VLM_CHANGE_CODE { TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
 379                           strdup(psz_input) ); }
 380     VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
 381 #undef VLM_CHANGE_CODE
 382 }
 383
 384 void libvlc_vlm_change_media( libvlc_instance_t *p_instance,
 385                               const char *psz_name, const char *psz_input,
 386                               const char *psz_output, int i_options,
 387                               const char * const *ppsz_options, int b_enabled,
 388                               int b_loop, libvlc_exception_t *p_exception )
 389 {
 390 #define VLM_CHANGE_CODE { int n;        \
 391     p_media->b_enabled = b_enabled;     \
 392     p_media->broadcast.b_loop = b_loop; \
 393     while( p_media->i_input > 0 )       \
 394         free( p_media->ppsz_input[--p_media->i_input] );    \
 395     if( psz_input )                     \
 396         TAB_APPEND( p_media->i_input, p_media->ppsz_input, strdup(psz_input) ); \
 397     free( p_media->psz_output );        \
 398     p_media->psz_output = psz_output ? strdup( psz_output ) : NULL; \
 399     while( p_media->i_option > 0 )     \
 400         free( p_media->ppsz_option[--p_media->i_option] );        \
 401     for( n = 0; n < i_options; n++ )    \
 402         TAB_APPEND( p_media->i_option, p_media->ppsz_option, \
 403                     strdup(ppsz_options[n]) );   \
 404   }
 405     VLM_CHANGE( "Unable to change %s properties", VLM_CHANGE_CODE );
 406 #undef VLM_CHANGE_CODE
 407 }
 408
 409 void libvlc_vlm_play_media( libvlc_instance_t *p_instance,
 410                             const char *psz_name,
 411                             libvlc_exception_t *p_exception )
 412 {
 413     vlm_t *p_vlm;
 414     int64_t id;
 415
 416     VLM(p_vlm);
 417
 418     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 419         vlm_Control( p_vlm, VLM_START_MEDIA_BROADCAST_INSTANCE, id, NULL, 0 ) )
 420     {
 421         libvlc_exception_raise( p_exception, "Unable to play %s", psz_name );
 422     }
 423 }
 424
 425 void libvlc_vlm_stop_media( libvlc_instance_t *p_instance,
 426                             const char *psz_name,
 427                             libvlc_exception_t *p_exception )
 428 {
 429     vlm_t *p_vlm;
 430     int64_t id;
 431
 432     VLM(p_vlm);
 433
 434     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 435         vlm_Control( p_vlm, VLM_STOP_MEDIA_INSTANCE, id, NULL ) )
 436     {
 437         libvlc_exception_raise( p_exception, "Unable to stop %s", psz_name );
 438     }
 439 }
 440
 441 void libvlc_vlm_pause_media( libvlc_instance_t *p_instance,
 442                              const char *psz_name,
 443                              libvlc_exception_t *p_exception )
 444 {
 445     vlm_t *p_vlm;
 446     int64_t id;
 447
 448     VLM(p_vlm);
 449
 450     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 451         vlm_Control( p_vlm, VLM_PAUSE_MEDIA_INSTANCE, id, NULL ) )
 452     {
 453         libvlc_exception_raise( p_exception, "Unable to pause %s", psz_name );
 454     }
 455 }
 456
 457 void libvlc_vlm_seek_media( libvlc_instance_t *p_instance,
 458                             const char *psz_name, float f_percentage,
 459                             libvlc_exception_t *p_exception )
 460 {
 461     vlm_t *p_vlm;
 462     int64_t id;
 463
 464     VLM(p_vlm);
 465
 466     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 467         vlm_Control( p_vlm, VLM_SET_MEDIA_INSTANCE_POSITION, id, NULL,
 468                      f_percentage ) )
 469         libvlc_exception_raise( p_exception, "Unable to seek %s to %f",
 470                                 psz_name, f_percentage );
 471 }
 472
 473 float libvlc_vlm_get_media_instance_position( libvlc_instance_t *p_instance,
 474                                               const char *psz_name,
 475                                               int i_instance,
 476                                               libvlc_exception_t *p_exception )
 477 {
 478     vlm_media_instance_t *p_mi;
 479     float result = -1.;
 480
 481     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 482                                           i_instance, p_exception );
 483     if( p_mi )
 484     {
 485         result = p_mi->d_position;
 486         vlm_media_instance_Delete( p_mi );
 487     }
 488     return result;
 489 }
 490
 491 int libvlc_vlm_get_media_instance_time( libvlc_instance_t *p_instance,
 492                                         const char *psz_name, int i_instance,
 493                                         libvlc_exception_t *p_exception )
 494 {
 495     vlm_media_instance_t *p_mi;
 496     int result = -1;
 497
 498     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 499                                         i_instance, p_exception );
 500     if( p_mi )
 501     {
 502         result = p_mi->i_time;
 503         vlm_media_instance_Delete( p_mi );
 504     }
 505     return result;
 506 }
 507
 508 int libvlc_vlm_get_media_instance_length( libvlc_instance_t *p_instance,
 509                                           const char *psz_name,
 510                                           int i_instance,
 511                                           libvlc_exception_t *p_exception )
 512 {
 513     vlm_media_instance_t *p_mi;
 514     int result = -1;
 515
 516     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 517                                           i_instance, p_exception );
 518     if( p_mi )
 519     {
 520         result = p_mi->i_length;
 521         vlm_media_instance_Delete( p_mi );
 522     }
 523     return result;
 524 }
 525
 526 int libvlc_vlm_get_media_instance_rate( libvlc_instance_t *p_instance,
 527                                         const char *psz_name, int i_instance,
 528                                         libvlc_exception_t *p_exception )
 529 {
 530     vlm_media_instance_t *p_mi;
 531     int result = -1;
 532
 533     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 534                                           i_instance, p_exception );
 535     if( p_mi )
 536     {
 537         result = p_mi->i_rate;
 538         vlm_media_instance_Delete( p_mi );
 539     }
 540     return result;
 541 }
 542
 543 int libvlc_vlm_get_media_instance_title( libvlc_instance_t *p_instance,
 544                                          const char *psz_name, int i_instance,
 545                                          libvlc_exception_t *p_exception )
 546 {
 547     vlm_media_instance_t *p_mi;
 548
 549     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 550                                           i_instance, p_exception );
 551     if( p_mi )
 552         vlm_media_instance_Delete( p_mi );
 553     return p_mi ? 0 : -1;
 554 }
 555
 556 int libvlc_vlm_get_media_instance_chapter( libvlc_instance_t *p_instance,
 557                                            const char *psz_name,
 558                                            int i_instance,
 559                                            libvlc_exception_t *p_exception )
 560 {
 561     vlm_media_instance_t *p_mi;
 562
 563     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 564                                           i_instance, p_exception );
 565     if( p_mi )
 566         vlm_media_instance_Delete( p_mi );
 567     return p_mi ? 0 : -1;
 568 }
 569
 570 int libvlc_vlm_get_media_instance_seekable( libvlc_instance_t *p_instance,
 571                                             const char *psz_name,
 572                                             int i_instance,
 573                                             libvlc_exception_t *p_exception )
 574 {
 575     vlm_media_instance_t *p_mi;
 576
 577     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 578                                           i_instance, p_exception );
 579     if( p_mi )
 580         vlm_media_instance_Delete( p_mi );
 581     return p_mi ? 0 : -1;
 582 }
 583
 584 libvlc_event_manager_t * libvlc_vlm_get_event_manager( libvlc_instance_t *p_instance,
 585                                                        libvlc_exception_t *p_exception )
 586 {
 587     vlm_t *p_vlm;
 588     VLM_RET( p_vlm, NULL);
 589     return p_instance->p_event_manager;
 590 }