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