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 #ifdef HAVE_CONFIG_H
  25 # include <config.h>
  26 #endif
  27
  28 #include <vlc/libvlc.h>
  29 #include <vlc/libvlc_vlm.h>
  30 #include <vlc_es.h>
  31 #include <vlc_input.h>
  32 #include <vlc_vlm.h>
  33 #include <assert.h>
  34
  35 #include "libvlc_internal.h"
  36
  37 /* VLM events callback. Transmit to libvlc */
  38 static int VlmEvent( vlc_object_t *p_this, const char * name,
  39                      vlc_value_t old_val, vlc_value_t newval, void *param )
  40 {
  41     VLC_UNUSED(p_this);
  42     VLC_UNUSED(name);
  43     VLC_UNUSED(old_val);
  44     vlm_event_t *event = (vlm_event_t*)newval.p_address;
  45     libvlc_event_manager_t *p_event_manager = (libvlc_event_manager_t *) param;
  46     libvlc_event_t libvlc_event;
  47
  48     libvlc_event.u.vlm_media_event.psz_instance_name = NULL;
  49     libvlc_event.u.vlm_media_event.psz_media_name = event->psz_name;
  50
  51     switch( event->i_type )
  52     {
  53     case VLM_EVENT_MEDIA_ADDED:
  54         libvlc_event.type = libvlc_VlmMediaAdded;
  55         break;
  56     case VLM_EVENT_MEDIA_REMOVED:
  57         libvlc_event.type = libvlc_VlmMediaRemoved;
  58         break;
  59     case VLM_EVENT_MEDIA_CHANGED:
  60         libvlc_event.type = libvlc_VlmMediaChanged;
  61         break;
  62     case VLM_EVENT_MEDIA_INSTANCE_STARTED:
  63         libvlc_event.type = libvlc_VlmMediaInstanceStarted;
  64         break;
  65     case VLM_EVENT_MEDIA_INSTANCE_STOPPED:
  66         libvlc_event.type = libvlc_VlmMediaInstanceStopped;
  67         break;
  68     case VLM_EVENT_MEDIA_INSTANCE_STATE:
  69         libvlc_event.u.vlm_media_event.psz_instance_name =
  70             event->psz_instance_name;
  71         switch( event->input_state )
  72         {
  73         case INIT_S:
  74             libvlc_event.type = libvlc_VlmMediaInstanceStatusInit;
  75             break;
  76         case OPENING_S:
  77             libvlc_event.type =
  78                 libvlc_VlmMediaInstanceStatusOpening;
  79             break;
  80         case PLAYING_S:
  81             libvlc_event.type =
  82                 libvlc_VlmMediaInstanceStatusPlaying;
  83             break;
  84         case PAUSE_S:
  85             libvlc_event.type = libvlc_VlmMediaInstanceStatusPause;
  86             break;
  87         case END_S:
  88             libvlc_event.type = libvlc_VlmMediaInstanceStatusEnd;
  89             break;
  90         case ERROR_S:
  91             libvlc_event.type = libvlc_VlmMediaInstanceStatusError;
  92             break;
  93         default:
  94             return 0;
  95         }
  96         break;
  97     default:
  98         return 0;
  99     }
 100     libvlc_event_send( p_event_manager, &libvlc_event );
 101     return 0;
 102 }
 103
 104 static void libvlc_vlm_release_internal( libvlc_instance_t *p_instance )
 105 {
 106     vlm_t *p_vlm = p_instance->libvlc_vlm.p_vlm;
 107     if( !p_instance->libvlc_vlm.p_vlm )
 108         return;
 109     /* We need to remove medias in order to receive events */
 110     vlm_Control( p_vlm, VLM_CLEAR_MEDIAS );
 111     vlm_Control( p_vlm, VLM_CLEAR_SCHEDULES );
 112
 113     var_DelCallback( (vlc_object_t *)p_vlm, "intf-event", VlmEvent,
 114                      p_instance->libvlc_vlm.p_event_manager );
 115     p_instance->libvlc_vlm.pf_release = NULL;
 116     libvlc_event_manager_release( p_instance->libvlc_vlm.p_event_manager );
 117     p_instance->libvlc_vlm.p_event_manager = NULL;
 118     vlm_Delete( p_vlm );
 119     p_instance->libvlc_vlm.p_vlm = NULL;
 120 }
 121
 122 static int libvlc_vlm_init( libvlc_instance_t *p_instance,
 123                             libvlc_exception_t *p_exception )
 124 {
 125     if( !p_instance->libvlc_vlm.p_event_manager )
 126     {
 127         p_instance->libvlc_vlm.p_event_manager =
 128             libvlc_event_manager_new( p_instance->libvlc_vlm.p_vlm,
 129                                       p_instance, p_exception );
 130         libvlc_event_manager_register_event_type(
 131             p_instance->libvlc_vlm.p_event_manager,
 132             libvlc_VlmMediaAdded, NULL );
 133         libvlc_event_manager_register_event_type(
 134             p_instance->libvlc_vlm.p_event_manager,
 135             libvlc_VlmMediaRemoved, NULL );
 136         libvlc_event_manager_register_event_type(
 137             p_instance->libvlc_vlm.p_event_manager,
 138             libvlc_VlmMediaChanged, NULL );
 139         libvlc_event_manager_register_event_type(
 140             p_instance->libvlc_vlm.p_event_manager,
 141             libvlc_VlmMediaInstanceStarted, NULL );
 142         libvlc_event_manager_register_event_type(
 143             p_instance->libvlc_vlm.p_event_manager,
 144             libvlc_VlmMediaInstanceStopped, NULL );
 145         libvlc_event_manager_register_event_type(
 146             p_instance->libvlc_vlm.p_event_manager,
 147             libvlc_VlmMediaInstanceStatusInit, NULL );
 148         libvlc_event_manager_register_event_type(
 149             p_instance->libvlc_vlm.p_event_manager,
 150             libvlc_VlmMediaInstanceStatusOpening, NULL );
 151         libvlc_event_manager_register_event_type(
 152             p_instance->libvlc_vlm.p_event_manager,
 153             libvlc_VlmMediaInstanceStatusPlaying, NULL );
 154         libvlc_event_manager_register_event_type(
 155             p_instance->libvlc_vlm.p_event_manager,
 156             libvlc_VlmMediaInstanceStatusPause, NULL );
 157         libvlc_event_manager_register_event_type(
 158             p_instance->libvlc_vlm.p_event_manager,
 159             libvlc_VlmMediaInstanceStatusEnd, NULL );
 160         libvlc_event_manager_register_event_type(
 161             p_instance->libvlc_vlm.p_event_manager,
 162             libvlc_VlmMediaInstanceStatusError, NULL );
 163     }
 164
 165     if( !p_instance->libvlc_vlm.p_vlm )
 166     {
 167         p_instance->libvlc_vlm.p_vlm = vlm_New( p_instance->p_libvlc_int );
 168         if( !p_instance->libvlc_vlm.p_vlm )
 169         {
 170             libvlc_exception_raise( p_exception );
 171             libvlc_printerr( "VLM not supported or out of memory" );
 172             return VLC_EGENERIC;
 173         }
 174         var_AddCallback( (vlc_object_t *)p_instance->libvlc_vlm.p_vlm,
 175                          "intf-event", VlmEvent,
 176                          p_instance->libvlc_vlm.p_event_manager );
 177         p_instance->libvlc_vlm.pf_release = libvlc_vlm_release_internal;
 178     }
 179
 180     return VLC_SUCCESS;
 181 }
 182
 183 void libvlc_vlm_release( libvlc_instance_t *p_instance,
 184                          libvlc_exception_t *p_exception)
 185 {
 186     VLC_UNUSED(p_exception);
 187     libvlc_vlm_release_internal( p_instance );
 188 }
 189
 190 #define VLM_RET(p,ret) do {                                     \
 191     if( libvlc_vlm_init( p_instance, p_exception ) ) return ret;\
 192     (p) = p_instance->libvlc_vlm.p_vlm;                                    \
 193   } while(0)
 194 #define VLM(p) VLM_RET(p,)
 195
 196 static vlm_media_instance_t *
 197 libvlc_vlm_get_media_instance( libvlc_instance_t *p_instance,
 198                                const char *psz_name, int i_minstance_idx,
 199                                libvlc_exception_t *p_exception )
 200 {
 201     vlm_t *p_vlm;
 202     vlm_media_instance_t **pp_minstance;
 203     vlm_media_instance_t *p_minstance;
 204     int i_minstance;
 205     int64_t id;
 206
 207     VLM_RET(p_vlm, NULL);
 208
 209     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 210         vlm_Control( p_vlm, VLM_GET_MEDIA_INSTANCES, id, &pp_minstance,
 211                      &i_minstance ) )
 212     {
 213         libvlc_exception_raise( p_exception );
 214         libvlc_printerr( "%s: media instances not found", psz_name );
 215         return NULL;
 216     }
 217     p_minstance = NULL;
 218     if( i_minstance_idx >= 0 && i_minstance_idx < i_minstance )
 219     {
 220         p_minstance = pp_minstance[i_minstance_idx];
 221         TAB_REMOVE( i_minstance, pp_minstance, p_minstance );
 222     }
 223     while( i_minstance > 0 )
 224         vlm_media_instance_Delete( pp_minstance[--i_minstance] );
 225     TAB_CLEAN( i_minstance, pp_minstance );
 226     return p_minstance;
 227 }
 228
 229 /* local function to be used in libvlc_vlm_show_media only */
 230 static char* recurse_answer( vlm_message_t *p_answer, const char* psz_delim,
 231                              const int i_list ) {
 232     char* psz_childdelim = NULL;
 233     char* psz_nametag = NULL;
 234     char* psz_response = strdup( "" );
 235     int i_success = 0;
 236     int i;
 237     vlm_message_t *aw_child, **paw_child;
 238
 239     i_success = asprintf( &psz_childdelim, "%s\t", psz_delim);
 240
 241     /* starting with the children of root node */
 242     if( i_success != -1 && p_answer->i_child )
 243     {
 244         paw_child = p_answer->child;
 245         aw_child = *( paw_child );
 246         /* Iterate over children */
 247         for( i = 0; i < p_answer->i_child; i++ )
 248         {
 249             /* Spare comma if it is the last element */
 250             char c_comma = ',';
 251             if( i == (p_answer->i_child - 1) )
 252                 c_comma = ' ';
 253
 254             /* Append name of child node, if not in a list */
 255             if( !i_list )
 256             {
 257                 i_success = asprintf( &psz_response, "%s\"%s\": ",
 258                               psz_response, aw_child->psz_name );
 259                 if( i_success == -1 ) break;
 260             }
 261
 262             /* If child node has children, */
 263             if( aw_child->i_child )
 264             {
 265                 /* If the parent node is a list (hence the child node is
 266                  * inside a list), create a property of its name as if it
 267                  * had a name value node
 268                  */
 269                 if( i_list )
 270                 {
 271                     i_success = asprintf( &psz_nametag, "\"name\": \"%s\",%s",
 272                                   aw_child->psz_name, psz_childdelim );
 273                     if( i_success == -1 ) break;
 274                 }
 275                 else
 276                 {
 277                     psz_nametag = strdup( "" );
 278                 }
 279                 /* If the child is a list itself, format it accordingly and
 280                  * recurse through the child's children, telling them that
 281                  * they are inside a list.
 282                  */
 283                 if( strcmp( aw_child->psz_name, "media" ) == 0 ||
 284                     strcmp( aw_child->psz_name, "inputs" ) == 0 ||
 285                     strcmp( aw_child->psz_name, "options" ) == 0 )
 286                 {
 287                     i_success = asprintf( &psz_response, "%s[%s%s%s]%c%s",
 288                                           psz_response, psz_childdelim,
 289                                           recurse_answer( aw_child,
 290                                                           psz_childdelim, 1 ),
 291                                           psz_delim, c_comma, psz_delim );
 292                     if( i_success == -1 ) break;
 293                 }
 294                 /* Not a list, so format the child as a JSON object and
 295                  * recurse through the child's children
 296                  */
 297                 else
 298                 {
 299                     i_success = asprintf( &psz_response, "%s{%s%s%s%s}%c%s",
 300                                           psz_response, psz_childdelim, psz_nametag,
 301                                           recurse_answer( aw_child,
 302                                                           psz_childdelim, 0 ),
 303                                           psz_delim, c_comma, psz_delim );
 304                     if( i_success == -1 ) break;
 305                 }
 306             }
 307             /* Otherwise - when no children are present - the node is a
 308              * value node. So print the value string
 309              */
 310             else
 311             {
 312                 /* If value is equivalent to NULL, print it as null */
 313                 if( aw_child->psz_value == NULL
 314                     || strcmp( aw_child->psz_value, "(null)" ) == 0 )
 315                 {
 316                     i_success = asprintf( &psz_response, "%snull%c%s",
 317                                           psz_response, c_comma, psz_delim );
 318                     if( i_success == -1 )
 319                         break;
 320                 }
 321                 /* Otherwise print the value in quotation marks */
 322                 else
 323                 {
 324                     i_success = asprintf( &psz_response, "%s\"%s\"%c%s",
 325                                           psz_response, aw_child->psz_value,
 326                                           c_comma, psz_delim );
 327                     if( i_success == -1 ) break;
 328                 }
 329             }
 330             /* getting next child */
 331             paw_child++;
 332             aw_child = *( paw_child );
 333         }
 334     }
 335     free( psz_nametag );
 336     free( psz_childdelim );
 337     if( i_success == -1 )
 338     {
 339         free( psz_response );
 340         psz_response = strdup( "" );
 341     }
 342     return psz_response;
 343 }
 344
 345 const char* libvlc_vlm_show_media( libvlc_instance_t *p_instance,
 346                                    const char *psz_name,
 347                                    libvlc_exception_t *p_exception )
 348 {
 349     char *psz_message = NULL;
 350     vlm_message_t *answer = NULL;
 351     char *psz_response = NULL;
 352     const char *psz_fmt = NULL;
 353     const char *psz_delimiter = NULL;
 354     int i_list;
 355     vlm_t *p_vlm = NULL;
 356
 357     VLM_RET(p_vlm, NULL);
 358
 359     assert( psz_name );
 360
 361     if( asprintf( &psz_message, "show %s", psz_name ) == -1 )
 362     {
 363         libvlc_exception_raise( p_exception );
 364         libvlc_printerr( "Not enough memory" );
 365         return NULL;
 366     }
 367
 368     vlm_ExecuteCommand( p_vlm, psz_message, &answer );
 369     if( answer->psz_value )
 370     {
 371         libvlc_exception_raise( p_exception );
 372         libvlc_printerr( "Unable to call show %s: %s",
 373                          psz_name, answer->psz_value );
 374     }
 375     else if ( answer->child )
 376     {   /* in case everything was requested  */
 377         if ( strcmp( psz_name, "" ) == 0 )
 378         {
 379             psz_fmt = "{\n\t%s\n}\n";
 380             psz_delimiter = "\n\t";
 381             i_list = 0;
 382         }
 383         else
 384         {
 385             psz_fmt = "%s\n";
 386             psz_delimiter = "\n";
 387             i_list = 1;
 388         }
 389         if( asprintf( &psz_response, psz_fmt,
 390                       recurse_answer( answer, psz_delimiter, i_list ) ) == -1 )
 391         {
 392             libvlc_exception_raise( p_exception );
 393             libvlc_printerr( "Out of memory" );
 394         }
 395     }
 396     free( psz_message );
 397     return( psz_response );
 398 }
 399
 400
 401 void libvlc_vlm_add_broadcast( libvlc_instance_t *p_instance,
 402                                const char *psz_name,
 403                                const char *psz_input,
 404                                const char *psz_output, int i_options,
 405                                const char * const *ppsz_options,
 406                                int b_enabled, int b_loop,
 407                                libvlc_exception_t *p_exception )
 408 {
 409     vlm_t *p_vlm;
 410     vlm_media_t m;
 411     int n;
 412
 413     VLM(p_vlm);
 414
 415     vlm_media_Init( &m );
 416     m.psz_name = strdup( psz_name );
 417     m.b_enabled = b_enabled;
 418     m.b_vod = false;
 419     m.broadcast.b_loop = b_loop;
 420     if( psz_input )
 421         TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
 422     if( psz_output )
 423         m.psz_output = strdup( psz_output );
 424     for( n = 0; n < i_options; n++ )
 425         TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
 426
 427     n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
 428     vlm_media_Clean( &m );
 429     if( n )
 430     {
 431         libvlc_exception_raise( p_exception );
 432         libvlc_printerr( "Media %s creation failed", psz_name );
 433     }
 434 }
 435
 436 void libvlc_vlm_add_vod( libvlc_instance_t *p_instance, const char *psz_name,
 437                          const char *psz_input, int i_options,
 438                          const char * const *ppsz_options, int b_enabled,
 439                          const char *psz_mux, libvlc_exception_t *p_exception )
 440 {
 441     vlm_t *p_vlm;
 442     vlm_media_t m;
 443     int n;
 444
 445     VLM(p_vlm);
 446
 447     vlm_media_Init( &m );
 448     m.psz_name = strdup( psz_name );
 449     m.b_enabled = b_enabled;
 450     m.b_vod = true;
 451     m.vod.psz_mux = psz_mux ? strdup( psz_mux ) : NULL;
 452     if( psz_input )
 453         TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
 454     for( n = 0; n < i_options; n++ )
 455         TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
 456
 457     n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
 458     vlm_media_Clean( &m );
 459     if( n )
 460     {
 461         libvlc_exception_raise( p_exception );
 462         libvlc_printerr( "Media %s creation failed", psz_name );
 463     }
 464 }
 465
 466 void libvlc_vlm_del_media( libvlc_instance_t *p_instance, const char *psz_name,
 467                            libvlc_exception_t *p_exception )
 468 {
 469     vlm_t *p_vlm;
 470     int64_t id;
 471
 472     VLM(p_vlm);
 473
 474     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 475         vlm_Control( p_vlm, VLM_DEL_MEDIA, id ) )
 476     {
 477         libvlc_exception_raise( p_exception );
 478         libvlc_printerr( "Unable to delete %s", psz_name );
 479     }
 480 }
 481
 482 #define VLM_CHANGE(psz_error, code ) do {   \
 483     vlm_media_t *p_media;   \
 484     vlm_t *p_vlm;           \
 485     int64_t id;             \
 486     VLM(p_vlm);             \
 487     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||    \
 488         vlm_Control( p_vlm, VLM_GET_MEDIA, id, &p_media ) ) {       \
 489         libvlc_exception_raise( p_exception );                      \
 490         libvlc_printerr( psz_error, psz_name );                     \
 491         return;             \
 492     }                       \
 493     if( !p_media ) goto error;                                      \
 494                             \
 495     code;                   \
 496                             \
 497     if( vlm_Control( p_vlm, VLM_CHANGE_MEDIA, p_media ) ) {         \
 498         vlm_media_Delete( p_media );                                \
 499         goto error;         \
 500     }                       \
 501     vlm_media_Delete( p_media );                                    \
 502     return;                 \
 503   error:                    \
 504     libvlc_exception_raise( p_exception );                          \
 505     libvlc_printerr( psz_error, psz_name );                         \
 506   } while(0)
 507
 508 void libvlc_vlm_set_enabled( libvlc_instance_t *p_instance,
 509                              const char *psz_name, int b_enabled,
 510                              libvlc_exception_t *p_exception )
 511 {
 512 #define VLM_CHANGE_CODE { p_media->b_enabled = b_enabled; }
 513     VLM_CHANGE( "Unable to delete %s", VLM_CHANGE_CODE );
 514 #undef VLM_CHANGE_CODE
 515 }
 516
 517 void libvlc_vlm_set_loop( libvlc_instance_t *p_instance, const char *psz_name,
 518                           int b_loop, libvlc_exception_t *p_exception )
 519 {
 520 #define VLM_CHANGE_CODE { p_media->broadcast.b_loop = b_loop; }
 521     VLM_CHANGE( "Unable to change %s loop property", VLM_CHANGE_CODE );
 522 #undef VLM_CHANGE_CODE
 523 }
 524
 525 void libvlc_vlm_set_mux( libvlc_instance_t *p_instance, const char *psz_name,
 526                          const char *psz_mux, libvlc_exception_t *p_exception )
 527 {
 528 #define VLM_CHANGE_CODE { if( p_media->b_vod ) { \
 529                             free( p_media->vod.psz_mux ); \
 530                             p_media->vod.psz_mux = psz_mux \
 531                                  ? strdup( psz_mux ) : NULL; \
 532                           } }
 533     VLM_CHANGE( "Unable to change %s mux property", VLM_CHANGE_CODE );
 534 #undef VLM_CHANGE_CODE
 535 }
 536
 537 void libvlc_vlm_set_output( libvlc_instance_t *p_instance,
 538                             const char *psz_name, const char *psz_output,
 539                             libvlc_exception_t *p_exception )
 540 {
 541 #define VLM_CHANGE_CODE { free( p_media->psz_output ); \
 542                           p_media->psz_output = strdup( psz_output ); }
 543     VLM_CHANGE( "Unable to change %s output property", VLM_CHANGE_CODE );
 544 #undef VLM_CHANGE_CODE
 545 }
 546
 547 void libvlc_vlm_set_input( libvlc_instance_t *p_instance,
 548                            const char *psz_name, const char *psz_input,
 549                            libvlc_exception_t *p_exception )
 550 {
 551 #define VLM_CHANGE_CODE { while( p_media->i_input > 0 ) \
 552                             free( p_media->ppsz_input[--p_media->i_input] );\
 553                           TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
 554                                       strdup(psz_input) ); }
 555     VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
 556 #undef VLM_CHANGE_CODE
 557 }
 558
 559 void libvlc_vlm_add_input( libvlc_instance_t *p_instance,
 560                            const char *psz_name, const char *psz_input,
 561                            libvlc_exception_t *p_exception )
 562 {
 563 #define VLM_CHANGE_CODE { TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
 564                           strdup(psz_input) ); }
 565     VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
 566 #undef VLM_CHANGE_CODE
 567 }
 568
 569 void libvlc_vlm_change_media( libvlc_instance_t *p_instance,
 570                               const char *psz_name, const char *psz_input,
 571                               const char *psz_output, int i_options,
 572                               const char * const *ppsz_options, int b_enabled,
 573                               int b_loop, libvlc_exception_t *p_exception )
 574 {
 575 #define VLM_CHANGE_CODE { int n;        \
 576     p_media->b_enabled = b_enabled;     \
 577     p_media->broadcast.b_loop = b_loop; \
 578     while( p_media->i_input > 0 )       \
 579         free( p_media->ppsz_input[--p_media->i_input] );    \
 580     if( psz_input )                     \
 581         TAB_APPEND( p_media->i_input, p_media->ppsz_input, strdup(psz_input) ); \
 582     free( p_media->psz_output );        \
 583     p_media->psz_output = psz_output ? strdup( psz_output ) : NULL; \
 584     while( p_media->i_option > 0 )     \
 585         free( p_media->ppsz_option[--p_media->i_option] );        \
 586     for( n = 0; n < i_options; n++ )    \
 587         TAB_APPEND( p_media->i_option, p_media->ppsz_option, \
 588                     strdup(ppsz_options[n]) );   \
 589   }
 590     VLM_CHANGE( "Unable to change %s properties", VLM_CHANGE_CODE );
 591 #undef VLM_CHANGE_CODE
 592 }
 593
 594 void libvlc_vlm_play_media( libvlc_instance_t *p_instance,
 595                             const char *psz_name,
 596                             libvlc_exception_t *p_exception )
 597 {
 598     vlm_t *p_vlm;
 599     int64_t id;
 600
 601     VLM(p_vlm);
 602
 603     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 604         vlm_Control( p_vlm, VLM_START_MEDIA_BROADCAST_INSTANCE, id, NULL, 0 ) )
 605     {
 606         libvlc_exception_raise( p_exception );
 607         libvlc_printerr( "Unable to play %s", psz_name );
 608     }
 609 }
 610
 611 void libvlc_vlm_stop_media( libvlc_instance_t *p_instance,
 612                             const char *psz_name,
 613                             libvlc_exception_t *p_exception )
 614 {
 615     vlm_t *p_vlm;
 616     int64_t id;
 617
 618     VLM(p_vlm);
 619
 620     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 621         vlm_Control( p_vlm, VLM_STOP_MEDIA_INSTANCE, id, NULL ) )
 622     {
 623         libvlc_exception_raise( p_exception );
 624         libvlc_printerr( "Unable to stop %s", psz_name );
 625     }
 626 }
 627
 628 void libvlc_vlm_pause_media( libvlc_instance_t *p_instance,
 629                              const char *psz_name,
 630                              libvlc_exception_t *p_exception )
 631 {
 632     vlm_t *p_vlm;
 633     int64_t id;
 634
 635     VLM(p_vlm);
 636
 637     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 638         vlm_Control( p_vlm, VLM_PAUSE_MEDIA_INSTANCE, id, NULL ) )
 639     {
 640         libvlc_exception_raise( p_exception );
 641         libvlc_printerr( "Unable to pause %s", psz_name );
 642     }
 643 }
 644
 645 void libvlc_vlm_seek_media( libvlc_instance_t *p_instance,
 646                             const char *psz_name, float f_percentage,
 647                             libvlc_exception_t *p_exception )
 648 {
 649     vlm_t *p_vlm;
 650     int64_t id;
 651
 652     VLM(p_vlm);
 653
 654     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 655         vlm_Control( p_vlm, VLM_SET_MEDIA_INSTANCE_POSITION, id, NULL,
 656                      f_percentage ) )
 657     {
 658         libvlc_exception_raise( p_exception );
 659         libvlc_printerr( "Unable to seek %s to %f%%", psz_name, f_percentage );
 660     }
 661 }
 662
 663 float libvlc_vlm_get_media_instance_position( libvlc_instance_t *p_instance,
 664                                               const char *psz_name,
 665                                               int i_instance,
 666                                               libvlc_exception_t *p_exception )
 667 {
 668     vlm_media_instance_t *p_mi;
 669     float result = -1.;
 670
 671     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 672                                           i_instance, p_exception );
 673     if( p_mi )
 674     {
 675         result = p_mi->d_position;
 676         vlm_media_instance_Delete( p_mi );
 677     }
 678     return result;
 679 }
 680
 681 int libvlc_vlm_get_media_instance_time( libvlc_instance_t *p_instance,
 682                                         const char *psz_name, int i_instance,
 683                                         libvlc_exception_t *p_exception )
 684 {
 685     vlm_media_instance_t *p_mi;
 686     int result = -1;
 687
 688     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 689                                         i_instance, p_exception );
 690     if( p_mi )
 691     {
 692         result = p_mi->i_time;
 693         vlm_media_instance_Delete( p_mi );
 694     }
 695     return result;
 696 }
 697
 698 int libvlc_vlm_get_media_instance_length( libvlc_instance_t *p_instance,
 699                                           const char *psz_name,
 700                                           int i_instance,
 701                                           libvlc_exception_t *p_exception )
 702 {
 703     vlm_media_instance_t *p_mi;
 704     int result = -1;
 705
 706     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 707                                           i_instance, p_exception );
 708     if( p_mi )
 709     {
 710         result = p_mi->i_length;
 711         vlm_media_instance_Delete( p_mi );
 712     }
 713     return result;
 714 }
 715
 716 int libvlc_vlm_get_media_instance_rate( libvlc_instance_t *p_instance,
 717                                         const char *psz_name, int i_instance,
 718                                         libvlc_exception_t *p_exception )
 719 {
 720     vlm_media_instance_t *p_mi;
 721     int result = -1;
 722
 723     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 724                                           i_instance, p_exception );
 725     if( p_mi )
 726     {
 727         result = p_mi->i_rate;
 728         vlm_media_instance_Delete( p_mi );
 729     }
 730     return result;
 731 }
 732
 733 int libvlc_vlm_get_media_instance_title( libvlc_instance_t *p_instance,
 734                                          const char *psz_name, int i_instance,
 735                                          libvlc_exception_t *p_exception )
 736 {
 737     vlm_media_instance_t *p_mi;
 738
 739     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 740                                           i_instance, p_exception );
 741     if( p_mi )
 742         vlm_media_instance_Delete( p_mi );
 743     return p_mi ? 0 : -1;
 744 }
 745
 746 int libvlc_vlm_get_media_instance_chapter( libvlc_instance_t *p_instance,
 747                                            const char *psz_name,
 748                                            int i_instance,
 749                                            libvlc_exception_t *p_exception )
 750 {
 751     vlm_media_instance_t *p_mi;
 752
 753     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 754                                           i_instance, p_exception );
 755     if( p_mi )
 756         vlm_media_instance_Delete( p_mi );
 757     return p_mi ? 0 : -1;
 758 }
 759
 760 int libvlc_vlm_get_media_instance_seekable( libvlc_instance_t *p_instance,
 761                                             const char *psz_name,
 762                                             int i_instance,
 763                                             libvlc_exception_t *p_exception )
 764 {
 765     vlm_media_instance_t *p_mi;
 766
 767     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 768                                           i_instance, p_exception );
 769     if( p_mi )
 770         vlm_media_instance_Delete( p_mi );
 771     return p_mi ? 0 : -1;
 772 }
 773
 774 libvlc_event_manager_t * libvlc_vlm_get_event_manager( libvlc_instance_t *p_instance,
 775                                                        libvlc_exception_t *p_exception )
 776 {
 777     vlm_t *p_vlm;
 778     VLM_RET( p_vlm, NULL);
 779     return p_instance->libvlc_vlm.p_event_manager;
 780 }