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         if( !p_instance->p_vlm )
 163         {
 164             libvlc_exception_raise( p_exception,
 165                                     "Unable to create VLM." );
 166             return VLC_EGENERIC;
 167         }
 168         var_AddCallback( (vlc_object_t *)p_instance->p_vlm, "intf-event", VlmEvent,
 169                          p_instance->p_event_manager );
 170     }
 171
 172     return VLC_SUCCESS;
 173 }
 174 #define VLM_RET(p,ret) do {                                     \
 175     if( libvlc_vlm_init( p_instance, p_exception ) ) return ret;\
 176     (p) = p_instance->p_vlm;                                    \
 177   } while(0)
 178 #define VLM(p) VLM_RET(p,)
 179
 180 static vlm_media_instance_t *
 181 libvlc_vlm_get_media_instance( libvlc_instance_t *p_instance,
 182                                const char *psz_name, int i_minstance_idx,
 183                                libvlc_exception_t *p_exception )
 184 {
 185     vlm_t *p_vlm;
 186     vlm_media_instance_t **pp_minstance;
 187     vlm_media_instance_t *p_minstance;
 188     int i_minstance;
 189     int64_t id;
 190
 191     VLM_RET(p_vlm, NULL);
 192
 193     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 194         vlm_Control( p_vlm, VLM_GET_MEDIA_INSTANCES, id, &pp_minstance,
 195                      &i_minstance ) )
 196     {
 197         libvlc_exception_raise( p_exception, "Unable to get %s instances",
 198                                 psz_name );
 199         return NULL;
 200     }
 201     p_minstance = NULL;
 202     if( i_minstance_idx >= 0 && i_minstance_idx < i_minstance )
 203     {
 204         p_minstance = pp_minstance[i_minstance_idx];
 205         TAB_REMOVE( i_minstance, pp_minstance, p_minstance );
 206     }
 207     while( i_minstance > 0 )
 208         vlm_media_instance_Delete( pp_minstance[--i_minstance] );
 209     TAB_CLEAN( i_minstance, pp_minstance );
 210     return p_minstance;
 211 }
 212
 213
 214 void libvlc_vlm_release( libvlc_instance_t *p_instance,
 215                          libvlc_exception_t *p_exception)
 216 {
 217     vlm_t *p_vlm;
 218
 219     VLM(p_vlm);
 220
 221     vlm_Delete( p_vlm );
 222     p_instance->p_vlm = NULL;
 223 }
 224
 225 void libvlc_vlm_add_broadcast( libvlc_instance_t *p_instance,
 226                                const char *psz_name,
 227                                const char *psz_input,
 228                                const char *psz_output, int i_options,
 229                                const char * const *ppsz_options,
 230                                int b_enabled, int b_loop,
 231                                libvlc_exception_t *p_exception )
 232 {
 233     vlm_t *p_vlm;
 234     vlm_media_t m;
 235     int n;
 236
 237     VLM(p_vlm);
 238
 239     vlm_media_Init( &m );
 240     m.psz_name = strdup( psz_name );
 241     m.b_enabled = b_enabled;
 242     m.b_vod = false;
 243     m.broadcast.b_loop = b_loop;
 244     if( psz_input )
 245         TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
 246     if( psz_output )
 247         m.psz_output = strdup( psz_output );
 248     for( n = 0; n < i_options; n++ )
 249         TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
 250
 251     n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
 252     vlm_media_Clean( &m );
 253     if( n )
 254         libvlc_exception_raise( p_exception, "Media %s creation failed",
 255                                 psz_name );
 256 }
 257
 258 void libvlc_vlm_add_vod( libvlc_instance_t *p_instance, const char *psz_name,
 259                          const char *psz_input, int i_options,
 260                          const char * const *ppsz_options, int b_enabled,
 261                          const char *psz_mux, libvlc_exception_t *p_exception )
 262 {
 263     vlm_t *p_vlm;
 264     vlm_media_t m;
 265     int n;
 266
 267     VLM(p_vlm);
 268
 269     vlm_media_Init( &m );
 270     m.psz_name = strdup( psz_name );
 271     m.b_enabled = b_enabled;
 272     m.b_vod = true;
 273     m.vod.psz_mux = psz_mux ? strdup( psz_mux ) : NULL;
 274     if( psz_input )
 275         TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
 276     for( n = 0; n < i_options; n++ )
 277         TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
 278
 279     n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
 280     vlm_media_Clean( &m );
 281     if( n )
 282         libvlc_exception_raise( p_exception, "Media %s creation failed",
 283                                 psz_name );
 284 }
 285
 286 void libvlc_vlm_del_media( libvlc_instance_t *p_instance, const char *psz_name,
 287                            libvlc_exception_t *p_exception )
 288 {
 289     vlm_t *p_vlm;
 290     int64_t id;
 291
 292     VLM(p_vlm);
 293
 294     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 295         vlm_Control( p_vlm, VLM_DEL_MEDIA, id ) )
 296     {
 297         libvlc_exception_raise( p_exception, "Unable to delete %s", psz_name );
 298     }
 299 }
 300
 301 #define VLM_CHANGE(psz_error, code ) do {   \
 302     vlm_media_t *p_media;   \
 303     vlm_t *p_vlm;           \
 304     int64_t id;             \
 305     VLM(p_vlm);             \
 306     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||    \
 307         vlm_Control( p_vlm, VLM_GET_MEDIA, id, &p_media ) ) {       \
 308         libvlc_exception_raise( p_exception, psz_error, psz_name ); \
 309         return;             \
 310     }                       \
 311     if( !p_media ) goto error;                                      \
 312                             \
 313     code;                   \
 314                             \
 315     if( vlm_Control( p_vlm, VLM_CHANGE_MEDIA, p_media ) ) {         \
 316         vlm_media_Delete( p_media );                                \
 317         goto error;         \
 318     }                       \
 319     vlm_media_Delete( p_media );                                    \
 320     return;                 \
 321   error:                    \
 322     libvlc_exception_raise( p_exception, psz_error, psz_name );\
 323   } while(0)
 324
 325 void libvlc_vlm_set_enabled( libvlc_instance_t *p_instance,
 326                              const char *psz_name, int b_enabled,
 327                              libvlc_exception_t *p_exception )
 328 {
 329 #define VLM_CHANGE_CODE { p_media->b_enabled = b_enabled; }
 330     VLM_CHANGE( "Unable to delete %s", VLM_CHANGE_CODE );
 331 #undef VLM_CHANGE_CODE
 332 }
 333
 334 void libvlc_vlm_set_loop( libvlc_instance_t *p_instance, const char *psz_name,
 335                           int b_loop, libvlc_exception_t *p_exception )
 336 {
 337 #define VLM_CHANGE_CODE { p_media->broadcast.b_loop = b_loop; }
 338     VLM_CHANGE( "Unable to change %s loop property", VLM_CHANGE_CODE );
 339 #undef VLM_CHANGE_CODE
 340 }
 341
 342 void libvlc_vlm_set_mux( libvlc_instance_t *p_instance, const char *psz_name,
 343                          const char *psz_mux, libvlc_exception_t *p_exception )
 344 {
 345 #define VLM_CHANGE_CODE { if( p_media->b_vod ) { \
 346                             free( p_media->vod.psz_mux ); \
 347                             p_media->vod.psz_mux = psz_mux \
 348                                  ? strdup( psz_mux ) : NULL; \
 349                           } }
 350     VLM_CHANGE( "Unable to change %s mux property", VLM_CHANGE_CODE );
 351 #undef VLM_CHANGE_CODE
 352 }
 353
 354 void libvlc_vlm_set_output( libvlc_instance_t *p_instance,
 355                             const char *psz_name, const char *psz_output,
 356                             libvlc_exception_t *p_exception )
 357 {
 358 #define VLM_CHANGE_CODE { free( p_media->psz_output ); \
 359                           p_media->psz_output = strdup( psz_output ); }
 360     VLM_CHANGE( "Unable to change %s output property", VLM_CHANGE_CODE );
 361 #undef VLM_CHANGE_CODE
 362 }
 363
 364 void libvlc_vlm_set_input( libvlc_instance_t *p_instance,
 365                            const char *psz_name, const char *psz_input,
 366                            libvlc_exception_t *p_exception )
 367 {
 368 #define VLM_CHANGE_CODE { while( p_media->i_input > 0 ) \
 369                             free( p_media->ppsz_input[--p_media->i_input] );\
 370                           TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
 371                                       strdup(psz_input) ); }
 372     VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
 373 #undef VLM_CHANGE_CODE
 374 }
 375
 376 void libvlc_vlm_add_input( libvlc_instance_t *p_instance,
 377                            const char *psz_name, const char *psz_input,
 378                            libvlc_exception_t *p_exception )
 379 {
 380 #define VLM_CHANGE_CODE { TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
 381                           strdup(psz_input) ); }
 382     VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
 383 #undef VLM_CHANGE_CODE
 384 }
 385
 386 void libvlc_vlm_change_media( libvlc_instance_t *p_instance,
 387                               const char *psz_name, const char *psz_input,
 388                               const char *psz_output, int i_options,
 389                               const char * const *ppsz_options, int b_enabled,
 390                               int b_loop, libvlc_exception_t *p_exception )
 391 {
 392 #define VLM_CHANGE_CODE { int n;        \
 393     p_media->b_enabled = b_enabled;     \
 394     p_media->broadcast.b_loop = b_loop; \
 395     while( p_media->i_input > 0 )       \
 396         free( p_media->ppsz_input[--p_media->i_input] );    \
 397     if( psz_input )                     \
 398         TAB_APPEND( p_media->i_input, p_media->ppsz_input, strdup(psz_input) ); \
 399     free( p_media->psz_output );        \
 400     p_media->psz_output = psz_output ? strdup( psz_output ) : NULL; \
 401     while( p_media->i_option > 0 )     \
 402         free( p_media->ppsz_option[--p_media->i_option] );        \
 403     for( n = 0; n < i_options; n++ )    \
 404         TAB_APPEND( p_media->i_option, p_media->ppsz_option, \
 405                     strdup(ppsz_options[n]) );   \
 406   }
 407     VLM_CHANGE( "Unable to change %s properties", VLM_CHANGE_CODE );
 408 #undef VLM_CHANGE_CODE
 409 }
 410
 411 void libvlc_vlm_play_media( libvlc_instance_t *p_instance,
 412                             const char *psz_name,
 413                             libvlc_exception_t *p_exception )
 414 {
 415     vlm_t *p_vlm;
 416     int64_t id;
 417
 418     VLM(p_vlm);
 419
 420     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 421         vlm_Control( p_vlm, VLM_START_MEDIA_BROADCAST_INSTANCE, id, NULL, 0 ) )
 422     {
 423         libvlc_exception_raise( p_exception, "Unable to play %s", psz_name );
 424     }
 425 }
 426
 427 void libvlc_vlm_stop_media( libvlc_instance_t *p_instance,
 428                             const char *psz_name,
 429                             libvlc_exception_t *p_exception )
 430 {
 431     vlm_t *p_vlm;
 432     int64_t id;
 433
 434     VLM(p_vlm);
 435
 436     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 437         vlm_Control( p_vlm, VLM_STOP_MEDIA_INSTANCE, id, NULL ) )
 438     {
 439         libvlc_exception_raise( p_exception, "Unable to stop %s", psz_name );
 440     }
 441 }
 442
 443 void libvlc_vlm_pause_media( libvlc_instance_t *p_instance,
 444                              const char *psz_name,
 445                              libvlc_exception_t *p_exception )
 446 {
 447     vlm_t *p_vlm;
 448     int64_t id;
 449
 450     VLM(p_vlm);
 451
 452     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 453         vlm_Control( p_vlm, VLM_PAUSE_MEDIA_INSTANCE, id, NULL ) )
 454     {
 455         libvlc_exception_raise( p_exception, "Unable to pause %s", psz_name );
 456     }
 457 }
 458
 459 void libvlc_vlm_seek_media( libvlc_instance_t *p_instance,
 460                             const char *psz_name, float f_percentage,
 461                             libvlc_exception_t *p_exception )
 462 {
 463     vlm_t *p_vlm;
 464     int64_t id;
 465
 466     VLM(p_vlm);
 467
 468     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 469         vlm_Control( p_vlm, VLM_SET_MEDIA_INSTANCE_POSITION, id, NULL,
 470                      f_percentage ) )
 471         libvlc_exception_raise( p_exception, "Unable to seek %s to %f",
 472                                 psz_name, f_percentage );
 473 }
 474
 475 float libvlc_vlm_get_media_instance_position( libvlc_instance_t *p_instance,
 476                                               const char *psz_name,
 477                                               int i_instance,
 478                                               libvlc_exception_t *p_exception )
 479 {
 480     vlm_media_instance_t *p_mi;
 481     float result = -1.;
 482
 483     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 484                                           i_instance, p_exception );
 485     if( p_mi )
 486     {
 487         result = p_mi->d_position;
 488         vlm_media_instance_Delete( p_mi );
 489     }
 490     return result;
 491 }
 492
 493 int libvlc_vlm_get_media_instance_time( libvlc_instance_t *p_instance,
 494                                         const char *psz_name, int i_instance,
 495                                         libvlc_exception_t *p_exception )
 496 {
 497     vlm_media_instance_t *p_mi;
 498     int result = -1;
 499
 500     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 501                                         i_instance, p_exception );
 502     if( p_mi )
 503     {
 504         result = p_mi->i_time;
 505         vlm_media_instance_Delete( p_mi );
 506     }
 507     return result;
 508 }
 509
 510 int libvlc_vlm_get_media_instance_length( libvlc_instance_t *p_instance,
 511                                           const char *psz_name,
 512                                           int i_instance,
 513                                           libvlc_exception_t *p_exception )
 514 {
 515     vlm_media_instance_t *p_mi;
 516     int result = -1;
 517
 518     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 519                                           i_instance, p_exception );
 520     if( p_mi )
 521     {
 522         result = p_mi->i_length;
 523         vlm_media_instance_Delete( p_mi );
 524     }
 525     return result;
 526 }
 527
 528 int libvlc_vlm_get_media_instance_rate( libvlc_instance_t *p_instance,
 529                                         const char *psz_name, int i_instance,
 530                                         libvlc_exception_t *p_exception )
 531 {
 532     vlm_media_instance_t *p_mi;
 533     int result = -1;
 534
 535     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 536                                           i_instance, p_exception );
 537     if( p_mi )
 538     {
 539         result = p_mi->i_rate;
 540         vlm_media_instance_Delete( p_mi );
 541     }
 542     return result;
 543 }
 544
 545 int libvlc_vlm_get_media_instance_title( libvlc_instance_t *p_instance,
 546                                          const char *psz_name, int i_instance,
 547                                          libvlc_exception_t *p_exception )
 548 {
 549     vlm_media_instance_t *p_mi;
 550
 551     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 552                                           i_instance, p_exception );
 553     if( p_mi )
 554         vlm_media_instance_Delete( p_mi );
 555     return p_mi ? 0 : -1;
 556 }
 557
 558 int libvlc_vlm_get_media_instance_chapter( libvlc_instance_t *p_instance,
 559                                            const char *psz_name,
 560                                            int i_instance,
 561                                            libvlc_exception_t *p_exception )
 562 {
 563     vlm_media_instance_t *p_mi;
 564
 565     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 566                                           i_instance, p_exception );
 567     if( p_mi )
 568         vlm_media_instance_Delete( p_mi );
 569     return p_mi ? 0 : -1;
 570 }
 571
 572 int libvlc_vlm_get_media_instance_seekable( libvlc_instance_t *p_instance,
 573                                             const char *psz_name,
 574                                             int i_instance,
 575                                             libvlc_exception_t *p_exception )
 576 {
 577     vlm_media_instance_t *p_mi;
 578
 579     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 580                                           i_instance, p_exception );
 581     if( p_mi )
 582         vlm_media_instance_Delete( p_mi );
 583     return p_mi ? 0 : -1;
 584 }
 585
 586 libvlc_event_manager_t * libvlc_vlm_get_event_manager( libvlc_instance_t *p_instance,
 587                                                        libvlc_exception_t *p_exception )
 588 {
 589     vlm_t *p_vlm;
 590     VLM_RET( p_vlm, NULL);
 591     return p_instance->p_event_manager;
 592 }