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
 109 static int libvlc_vlm_init( libvlc_instance_t *p_instance,
 110                             libvlc_exception_t *p_exception )
 111 {
 112     if( !p_instance->p_vlm )
 113         p_instance->p_vlm = vlm_New( p_instance->p_libvlc_int );
 114
 115     if( !p_instance->p_vlm )
 116     {
 117         libvlc_exception_raise( p_exception,
 118                                 "Unable to create VLM." );
 119         return VLC_EGENERIC;
 120     }
 121     return VLC_SUCCESS;
 122 }
 123 #define VLM_RET(p,ret) do {                                     \
 124     if( libvlc_vlm_init( p_instance, p_exception ) ) return ret;\
 125     (p) = p_instance->p_vlm;                                    \
 126   } while(0)
 127 #define VLM(p) VLM_RET(p,)
 128
 129 static vlm_media_instance_t *
 130 libvlc_vlm_get_media_instance( libvlc_instance_t *p_instance,
 131                                const char *psz_name, int i_minstance_idx,
 132                                libvlc_exception_t *p_exception )
 133 {
 134     vlm_t *p_vlm;
 135     vlm_media_instance_t **pp_minstance;
 136     vlm_media_instance_t *p_minstance;
 137     int i_minstance;
 138     int64_t id;
 139
 140     VLM_RET(p_vlm, NULL);
 141
 142     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 143         vlm_Control( p_vlm, VLM_GET_MEDIA_INSTANCES, id, &pp_minstance,
 144                      &i_minstance ) )
 145     {
 146         libvlc_exception_raise( p_exception, "Unable to get %s instances",
 147                                 psz_name );
 148         return NULL;
 149     }
 150     p_minstance = NULL;
 151     if( i_minstance_idx >= 0 && i_minstance_idx < i_minstance )
 152     {
 153         p_minstance = pp_minstance[i_minstance_idx];
 154         TAB_REMOVE( i_minstance, pp_minstance, p_minstance );
 155     }
 156     while( i_minstance > 0 )
 157         vlm_media_instance_Delete( pp_minstance[--i_minstance] );
 158     TAB_CLEAN( i_minstance, pp_minstance );
 159     return p_minstance;
 160 }
 161
 162
 163 void libvlc_vlm_release( libvlc_instance_t *p_instance,
 164                          libvlc_exception_t *p_exception)
 165 {
 166     vlm_t *p_vlm;
 167
 168     VLM(p_vlm);
 169
 170     vlm_Delete( p_vlm );
 171 }
 172
 173 void libvlc_vlm_add_broadcast( libvlc_instance_t *p_instance,
 174                                const char *psz_name,
 175                                const char *psz_input,
 176                                const char *psz_output, int i_options,
 177                                const char * const *ppsz_options,
 178                                int b_enabled, int b_loop,
 179                                libvlc_exception_t *p_exception )
 180 {
 181     vlm_t *p_vlm;
 182     vlm_media_t m;
 183     int n;
 184
 185     VLM(p_vlm);
 186
 187     vlm_media_Init( &m );
 188     m.psz_name = strdup( psz_name );
 189     m.b_enabled = b_enabled;
 190     m.b_vod = false;
 191     m.broadcast.b_loop = b_loop;
 192     if( psz_input )
 193         TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
 194     if( psz_output )
 195         m.psz_output = strdup( psz_output );
 196     for( n = 0; n < i_options; n++ )
 197         TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
 198
 199     n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
 200     vlm_media_Clean( &m );
 201     if( n )
 202         libvlc_exception_raise( p_exception, "Media %s creation failed",
 203                                 psz_name );
 204 }
 205
 206 void libvlc_vlm_add_vod( libvlc_instance_t *p_instance, const char *psz_name,
 207                          const char *psz_input, int i_options,
 208                          const char * const *ppsz_options, int b_enabled,
 209                          const char *psz_mux, libvlc_exception_t *p_exception )
 210 {
 211     vlm_t *p_vlm;
 212     vlm_media_t m;
 213     int n;
 214
 215     VLM(p_vlm);
 216
 217     vlm_media_Init( &m );
 218     m.psz_name = strdup( psz_name );
 219     m.b_enabled = b_enabled;
 220     m.b_vod = true;
 221     m.vod.psz_mux = psz_mux ? strdup( psz_mux ) : NULL;
 222     if( psz_input )
 223         TAB_APPEND( m.i_input, m.ppsz_input, strdup(psz_input) );
 224     for( n = 0; n < i_options; n++ )
 225         TAB_APPEND( m.i_option, m.ppsz_option, strdup(ppsz_options[n]) );
 226
 227     n = vlm_Control( p_vlm, VLM_ADD_MEDIA, &m, NULL );
 228     vlm_media_Clean( &m );
 229     if( n )
 230         libvlc_exception_raise( p_exception, "Media %s creation failed",
 231                                 psz_name );
 232 }
 233
 234 void libvlc_vlm_del_media( libvlc_instance_t *p_instance, const char *psz_name,
 235                            libvlc_exception_t *p_exception )
 236 {
 237     vlm_t *p_vlm;
 238     int64_t id;
 239
 240     VLM(p_vlm);
 241
 242     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 243         vlm_Control( p_vlm, VLM_DEL_MEDIA, id ) )
 244     {
 245         libvlc_exception_raise( p_exception, "Unable to delete %s", psz_name );
 246     }
 247 }
 248
 249 #define VLM_CHANGE(psz_error, code ) do {   \
 250     vlm_media_t *p_media;   \
 251     vlm_t *p_vlm;           \
 252     int64_t id;             \
 253     VLM(p_vlm);             \
 254     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||    \
 255         vlm_Control( p_vlm, VLM_GET_MEDIA, id, &p_media ) ) {       \
 256         libvlc_exception_raise( p_exception, psz_error, psz_name ); \
 257         return;             \
 258     }                       \
 259     if( !p_media ) goto error;                                      \
 260                             \
 261     code;                   \
 262                             \
 263     if( vlm_Control( p_vlm, VLM_CHANGE_MEDIA, p_media ) ) {         \
 264         vlm_media_Delete( p_media );                                \
 265         goto error;         \
 266     }                       \
 267     vlm_media_Delete( p_media );                                    \
 268     return;                 \
 269   error:                    \
 270     libvlc_exception_raise( p_exception, psz_error, psz_name );\
 271   } while(0)
 272
 273 void libvlc_vlm_set_enabled( libvlc_instance_t *p_instance,
 274                              const char *psz_name, int b_enabled,
 275                              libvlc_exception_t *p_exception )
 276 {
 277 #define VLM_CHANGE_CODE { p_media->b_enabled = b_enabled; }
 278     VLM_CHANGE( "Unable to delete %s", VLM_CHANGE_CODE );
 279 #undef VLM_CHANGE_CODE
 280 }
 281
 282 void libvlc_vlm_set_loop( libvlc_instance_t *p_instance, const char *psz_name,
 283                           int b_loop, libvlc_exception_t *p_exception )
 284 {
 285 #define VLM_CHANGE_CODE { p_media->broadcast.b_loop = b_loop; }
 286     VLM_CHANGE( "Unable to change %s loop property", VLM_CHANGE_CODE );
 287 #undef VLM_CHANGE_CODE
 288 }
 289
 290 void libvlc_vlm_set_mux( libvlc_instance_t *p_instance, const char *psz_name,
 291                          const char *psz_mux, libvlc_exception_t *p_exception )
 292 {
 293 #define VLM_CHANGE_CODE { if( p_media->b_vod ) { \
 294                             free( p_media->vod.psz_mux ); \
 295                             p_media->vod.psz_mux = psz_mux \
 296                                  ? strdup( psz_mux ) : NULL; \
 297                           } }
 298     VLM_CHANGE( "Unable to change %s mux property", VLM_CHANGE_CODE );
 299 #undef VLM_CHANGE_CODE
 300 }
 301
 302 void libvlc_vlm_set_output( libvlc_instance_t *p_instance,
 303                             const char *psz_name, const char *psz_output,
 304                             libvlc_exception_t *p_exception )
 305 {
 306 #define VLM_CHANGE_CODE { free( p_media->psz_output ); \
 307                           p_media->psz_output = strdup( psz_output ); }
 308     VLM_CHANGE( "Unable to change %s output property", VLM_CHANGE_CODE );
 309 #undef VLM_CHANGE_CODE
 310 }
 311
 312 void libvlc_vlm_set_input( libvlc_instance_t *p_instance,
 313                            const char *psz_name, const char *psz_input,
 314                            libvlc_exception_t *p_exception )
 315 {
 316 #define VLM_CHANGE_CODE { while( p_media->i_input > 0 ) \
 317                             free( p_media->ppsz_input[--p_media->i_input] );\
 318                           TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
 319                                       strdup(psz_input) ); }
 320     VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
 321 #undef VLM_CHANGE_CODE
 322 }
 323
 324 void libvlc_vlm_add_input( libvlc_instance_t *p_instance,
 325                            const char *psz_name, const char *psz_input,
 326                            libvlc_exception_t *p_exception )
 327 {
 328 #define VLM_CHANGE_CODE { TAB_APPEND( p_media->i_input, p_media->ppsz_input, \
 329                           strdup(psz_input) ); }
 330     VLM_CHANGE( "Unable to change %s input property", VLM_CHANGE_CODE );
 331 #undef VLM_CHANGE_CODE
 332 }
 333
 334 void libvlc_vlm_change_media( libvlc_instance_t *p_instance,
 335                               const char *psz_name, const char *psz_input,
 336                               const char *psz_output, int i_options,
 337                               const char * const *ppsz_options, int b_enabled,
 338                               int b_loop, libvlc_exception_t *p_exception )
 339 {
 340 #define VLM_CHANGE_CODE { int n;        \
 341     p_media->b_enabled = b_enabled;     \
 342     p_media->broadcast.b_loop = b_loop; \
 343     while( p_media->i_input > 0 )       \
 344         free( p_media->ppsz_input[--p_media->i_input] );    \
 345     if( psz_input )                     \
 346         TAB_APPEND( p_media->i_input, p_media->ppsz_input, strdup(psz_input) ); \
 347     free( p_media->psz_output );        \
 348     p_media->psz_output = psz_output ? strdup( psz_output ) : NULL; \
 349     while( p_media->i_option > 0 )     \
 350         free( p_media->ppsz_option[--p_media->i_option] );        \
 351     for( n = 0; n < i_options; n++ )    \
 352         TAB_APPEND( p_media->i_option, p_media->ppsz_option, \
 353                     strdup(ppsz_options[n]) );   \
 354   }
 355     VLM_CHANGE( "Unable to change %s properties", VLM_CHANGE_CODE );
 356 #undef VLM_CHANGE_CODE
 357 }
 358
 359 void libvlc_vlm_play_media( libvlc_instance_t *p_instance,
 360                             const char *psz_name,
 361                             libvlc_exception_t *p_exception )
 362 {
 363     vlm_t *p_vlm;
 364     int64_t id;
 365
 366     VLM(p_vlm);
 367
 368     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 369         vlm_Control( p_vlm, VLM_START_MEDIA_BROADCAST_INSTANCE, id, NULL, 0 ) )
 370     {
 371         libvlc_exception_raise( p_exception, "Unable to play %s", psz_name );
 372     }
 373 }
 374
 375 void libvlc_vlm_stop_media( libvlc_instance_t *p_instance,
 376                             const char *psz_name,
 377                             libvlc_exception_t *p_exception )
 378 {
 379     vlm_t *p_vlm;
 380     int64_t id;
 381
 382     VLM(p_vlm);
 383
 384     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 385         vlm_Control( p_vlm, VLM_STOP_MEDIA_INSTANCE, id, NULL ) )
 386     {
 387         libvlc_exception_raise( p_exception, "Unable to stop %s", psz_name );
 388     }
 389 }
 390
 391 void libvlc_vlm_pause_media( libvlc_instance_t *p_instance,
 392                              const char *psz_name,
 393                              libvlc_exception_t *p_exception )
 394 {
 395     vlm_t *p_vlm;
 396     int64_t id;
 397
 398     VLM(p_vlm);
 399
 400     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 401         vlm_Control( p_vlm, VLM_PAUSE_MEDIA_INSTANCE, id, NULL ) )
 402     {
 403         libvlc_exception_raise( p_exception, "Unable to pause %s", psz_name );
 404     }
 405 }
 406
 407 void libvlc_vlm_seek_media( libvlc_instance_t *p_instance,
 408                             const char *psz_name, float f_percentage,
 409                             libvlc_exception_t *p_exception )
 410 {
 411     vlm_t *p_vlm;
 412     int64_t id;
 413
 414     VLM(p_vlm);
 415
 416     if( vlm_Control( p_vlm, VLM_GET_MEDIA_ID, psz_name, &id ) ||
 417         vlm_Control( p_vlm, VLM_SET_MEDIA_INSTANCE_POSITION, id, NULL,
 418                      f_percentage ) )
 419         libvlc_exception_raise( p_exception, "Unable to seek %s to %f",
 420                                 psz_name, f_percentage );
 421 }
 422
 423 float libvlc_vlm_get_media_instance_position( libvlc_instance_t *p_instance,
 424                                               const char *psz_name,
 425                                               int i_instance,
 426                                               libvlc_exception_t *p_exception )
 427 {
 428     vlm_media_instance_t *p_mi;
 429     float result = -1.;
 430
 431     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 432                                           i_instance, p_exception );
 433     if( p_mi )
 434     {
 435         result = p_mi->d_position;
 436         vlm_media_instance_Delete( p_mi );
 437     }
 438     return result;
 439 }
 440
 441 int libvlc_vlm_get_media_instance_time( libvlc_instance_t *p_instance,
 442                                         const char *psz_name, int i_instance,
 443                                         libvlc_exception_t *p_exception )
 444 {
 445     vlm_media_instance_t *p_mi;
 446     int result = -1;
 447
 448     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 449                                         i_instance, p_exception );
 450     if( p_mi )
 451     {
 452         result = p_mi->i_time;
 453         vlm_media_instance_Delete( p_mi );
 454     }
 455     return result;
 456 }
 457
 458 int libvlc_vlm_get_media_instance_length( libvlc_instance_t *p_instance,
 459                                           const char *psz_name,
 460                                           int i_instance,
 461                                           libvlc_exception_t *p_exception )
 462 {
 463     vlm_media_instance_t *p_mi;
 464     int result = -1;
 465
 466     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 467                                           i_instance, p_exception );
 468     if( p_mi )
 469     {
 470         result = p_mi->i_length;
 471         vlm_media_instance_Delete( p_mi );
 472     }
 473     return result;
 474 }
 475
 476 int libvlc_vlm_get_media_instance_rate( libvlc_instance_t *p_instance,
 477                                         const char *psz_name, int i_instance,
 478                                         libvlc_exception_t *p_exception )
 479 {
 480     vlm_media_instance_t *p_mi;
 481     int 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->i_rate;
 488         vlm_media_instance_Delete( p_mi );
 489     }
 490     return result;
 491 }
 492
 493 int libvlc_vlm_get_media_instance_title( 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
 499     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 500                                           i_instance, p_exception );
 501     if( p_mi )
 502         vlm_media_instance_Delete( p_mi );
 503     return p_mi ? 0 : -1;
 504 }
 505
 506 int libvlc_vlm_get_media_instance_chapter( libvlc_instance_t *p_instance,
 507                                            const char *psz_name,
 508                                            int i_instance,
 509                                            libvlc_exception_t *p_exception )
 510 {
 511     vlm_media_instance_t *p_mi;
 512
 513     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 514                                           i_instance, p_exception );
 515     if( p_mi )
 516         vlm_media_instance_Delete( p_mi );
 517     return p_mi ? 0 : -1;
 518 }
 519
 520 int libvlc_vlm_get_media_instance_seekable( libvlc_instance_t *p_instance,
 521                                             const char *psz_name,
 522                                             int i_instance,
 523                                             libvlc_exception_t *p_exception )
 524 {
 525     vlm_media_instance_t *p_mi;
 526
 527     p_mi = libvlc_vlm_get_media_instance( p_instance, psz_name,
 528                                           i_instance, p_exception );
 529     if( p_mi )
 530         vlm_media_instance_Delete( p_mi );
 531     return p_mi ? 0 : -1;
 532 }