modules/access/imem.c

   1 /*****************************************************************************
   2  * imem.c : Memory input for VLC
   3  *****************************************************************************
   4  * Copyright (C) 2009-2010 Laurent Aimar
   5  * $Id$
   6  *
   7  * Author: Laurent Aimar <fenrir _AT_ videolan _DOT 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 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31 #include <limits.h>
  32 #include <math.h>
  33
  34 #include <vlc_common.h>
  35 #include <vlc_plugin.h>
  36 #include <vlc_access.h>
  37 #include <vlc_demux.h>
  38 #include <vlc_charset.h>
  39
  40 /*****************************************************************************
  41  * Module descriptior
  42  *****************************************************************************/
  43 static int  OpenAccess (vlc_object_t *);
  44 static void CloseAccess(vlc_object_t *);
  45
  46 static int  OpenDemux (vlc_object_t *);
  47 static void CloseDemux(vlc_object_t *);
  48
  49 #define CACHING_TEXT N_("Caching value in ms")
  50 #define CACHING_LONGTEXT N_(\
  51     "Caching value for imem streams. This " \
  52     "value should be set in milliseconds.")
  53
  54 #define ID_TEXT N_("ID")
  55 #define ID_LONGTEXT N_(\
  56     "Set the ID of the elementary stream")
  57
  58 #define GROUP_TEXT N_("Group")
  59 #define GROUP_LONGTEXT N_(\
  60     "Set the group of the elementary stream")
  61
  62 #define CAT_TEXT N_("Category")
  63 #define CAT_LONGTEXT N_(\
  64     "Set the category of the elementary stream")
  65 static const int cat_values[] = {
  66     0, 1, 2, 3, 4,
  67 };
  68 static const char *cat_texts[] = {
  69     N_("Unknown"), N_("Audio"), N_("Video"), N_("Subtitle"), N_("Data")
  70 };
  71
  72 #define CODEC_TEXT N_("Codec")
  73 #define CODEC_LONGTEXT N_(\
  74     "Set the codec of the elementary stream")
  75
  76 #define LANGUAGE_TEXT N_("Language")
  77 #define LANGUAGE_LONGTEXT N_(\
  78     "Language of the elementary stream as described by ISO639")
  79
  80 #define SAMPLERATE_TEXT N_("Sample rate")
  81 #define SAMPLERATE_LONGTEXT N_(\
  82     "Sample rate of an audio elementary stream")
  83
  84 #define CHANNELS_TEXT N_("Channels count")
  85 #define CHANNELS_LONGTEXT N_(\
  86     "Channels count of an audio elementary stream")
  87
  88 #define WIDTH_TEXT N_("Width")
  89 #define WIDTH_LONGTEXT N_("Width of video or subtitle elementary streams")
  90
  91 #define HEIGHT_TEXT N_("Height")
  92 #define HEIGHT_LONGTEXT N_("Height of video or subtitle elementary streams")
  93
  94 #define DAR_TEXT N_("Display aspect ratio")
  95 #define DAR_LONGTEXT N_(\
  96     "Display aspect ratio of a video elementary stream")
  97
  98 #define FPS_TEXT N_("Frame rate")
  99 #define FPS_LONGTEXT N_(\
 100     "Frame rate of a video elementary stream")
 101
 102 #define COOKIE_TEXT N_("Callback cookie string")
 103 #define COOKIE_LONGTEXT N_(\
 104     "Text identifier for the callback functions")
 105
 106 #define DATA_TEXT N_("Callback data")
 107 #define DATA_LONGTEXT N_(\
 108     "Data for the get and release functions")
 109
 110 #define GET_TEXT N_("Get function")
 111 #define GET_LONGTEXT N_(\
 112     "Address of the get callback function")
 113
 114 #define RELEASE_TEXT N_("Release function")
 115 #define RELEASE_LONGTEXT N_(\
 116     "Address of the release callback function")
 117
 118 #define SIZE_TEXT N_("Size")
 119 #define SIZE_LONGTEXT N_(\
 120     "Size of stream in bytes")
 121
 122 vlc_module_begin()
 123     set_shortname(N_("Memory input"))
 124     set_description(N_("Memory input"))
 125     set_category(CAT_INPUT)
 126     set_subcategory(SUBCAT_INPUT_ACCESS)
 127
 128     add_integer("imem-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, true)
 129         change_private()
 130     add_string ("imem-get", "0", GET_TEXT, GET_LONGTEXT, true)
 131         change_volatile()
 132     add_string ("imem-release", "0", RELEASE_TEXT, RELEASE_LONGTEXT, true)
 133         change_volatile()
 134     add_string ("imem-cookie", NULL, COOKIE_TEXT, COOKIE_LONGTEXT, true)
 135         change_volatile()
 136         change_safe()
 137     add_string ("imem-data", "0", DATA_TEXT, DATA_LONGTEXT, true)
 138         change_volatile()
 139
 140     add_integer("imem-id", -1, NULL, ID_TEXT, ID_LONGTEXT, true)
 141         change_private()
 142         change_safe()
 143     add_integer("imem-group", 0, NULL, GROUP_TEXT, GROUP_LONGTEXT, true)
 144         change_private()
 145         change_safe()
 146     add_integer("imem-cat", 0, NULL, CAT_TEXT, CAT_LONGTEXT, true)
 147         change_integer_list(cat_values, cat_texts)
 148         change_private()
 149         change_safe()
 150     add_string ("imem-codec", NULL, CODEC_TEXT, CODEC_LONGTEXT, true)
 151         change_private()
 152         change_safe()
 153     add_string( "imem-language", NULL, LANGUAGE_TEXT, LANGUAGE_LONGTEXT, false)
 154         change_private()
 155         change_safe()
 156
 157     add_integer("imem-samplerate", 0, NULL, SAMPLERATE_TEXT, SAMPLERATE_LONGTEXT, true)
 158         change_private()
 159         change_safe()
 160     add_integer("imem-channels", 0, NULL, CHANNELS_TEXT, CHANNELS_LONGTEXT, true)
 161         change_private()
 162         change_safe()
 163
 164     add_integer("imem-width", 0, NULL, WIDTH_TEXT, WIDTH_LONGTEXT, true)
 165         change_private()
 166         change_safe()
 167     add_integer("imem-height", 0, NULL, HEIGHT_TEXT, HEIGHT_LONGTEXT, true)
 168         change_private()
 169         change_safe()
 170     add_string ("imem-dar", NULL, DAR_TEXT, DAR_LONGTEXT, true)
 171         change_private()
 172         change_safe()
 173     add_string ("imem-fps", NULL, FPS_TEXT, FPS_LONGTEXT, true)
 174         change_private()
 175         change_safe()
 176
 177     add_integer ("imem-size", 0, NULL, SIZE_TEXT, SIZE_LONGTEXT, true)
 178         change_private()
 179         change_safe()
 180
 181     add_shortcut("imem")
 182     set_capability("access_demux", 0)
 183     set_callbacks(OpenDemux, CloseDemux)
 184
 185     add_submodule()
 186         add_shortcut("imem")
 187         set_capability("access", 0)
 188         set_callbacks(OpenAccess, CloseAccess)
 189 vlc_module_end()
 190
 191 /*****************************************************************************
 192  * Exported API
 193  *****************************************************************************/
 194
 195 /* The clock origin for the DTS and PTS is assumed to be 0.
 196  * A negative value means unknown.
 197  *
 198  * TODO define flags
 199  */
 200 typedef int  (*imem_get_t)(void *data, const char *cookie,
 201                            int64_t *dts, int64_t *pts, unsigned *flags,
 202                            size_t *, void **);
 203 typedef void (*imem_release_t)(void *data, const char *cookie, size_t, void *);
 204
 205 /*****************************************************************************
 206  * Local prototypes
 207  *****************************************************************************/
 208
 209 /* */
 210 static block_t *Block(access_t *);
 211 static int ControlAccess(access_t *, int, va_list);
 212
 213 static int Demux(demux_t *);
 214 static int ControlDemux(demux_t *, int, va_list);
 215
 216 /* */
 217 typedef struct {
 218     struct {
 219         imem_get_t      get;
 220         imem_release_t  release;
 221         void           *data;
 222         char           *cookie;
 223     } source;
 224
 225     es_out_id_t  *es;
 226
 227     mtime_t      pts_delay;
 228
 229     mtime_t      dts;
 230
 231     mtime_t      deadline;
 232 } imem_sys_t;
 233
 234 static void ParseMRL(vlc_object_t *, const char *);
 235
 236 /**
 237  * It closes the common part of the access and access_demux
 238  */
 239 static void CloseCommon(imem_sys_t *sys)
 240 {
 241     free(sys->source.cookie);
 242     free(sys);
 243 }
 244
 245 /**
 246  * It initializes the common part for imem access/access_demux.
 247  */
 248 static int OpenCommon(vlc_object_t *object, imem_sys_t **sys_ptr, const char *psz_path)
 249 {
 250     char *tmp;
 251
 252     /* */
 253     imem_sys_t *sys = calloc(1, sizeof(*sys));
 254     if (!sys)
 255         return VLC_ENOMEM;
 256
 257     /* Read the user functions */
 258     tmp = var_InheritString(object, "imem-get");
 259     if (tmp)
 260         sys->source.get = (imem_get_t)(intptr_t)strtoll(tmp, NULL, 0);
 261     free(tmp);
 262
 263     tmp = var_InheritString(object, "imem-release");
 264     if (tmp)
 265         sys->source.release = (imem_release_t)(intptr_t)strtoll(tmp, NULL, 0);
 266     free(tmp);
 267
 268     if (!sys->source.get || !sys->source.release) {
 269         msg_Err(object, "Invalid get/release function pointers");
 270         free(sys);
 271         return VLC_EGENERIC;
 272     }
 273
 274     tmp = var_InheritString(object, "imem-data");
 275     if (tmp)
 276         sys->source.data = (void *)(uintptr_t)strtoull(tmp, NULL, 0);
 277     free(tmp);
 278
 279     /* Now we can parse the MRL (get/release must not be parsed to avoid
 280      * security risks) */
 281     if (*psz_path)
 282         ParseMRL(object, psz_path);
 283
 284     sys->source.cookie = var_InheritString(object, "imem-cookie");
 285
 286     msg_Dbg(object, "Using get(%p), release(%p), data(%p), cookie(%s)",
 287             sys->source.get, sys->source.release, sys->source.data,
 288             sys->source.cookie ? sys->source.cookie : "(null)");
 289
 290     /* */
 291     sys->pts_delay = var_InheritInteger(object, "imem-caching") * INT64_C(1000);
 292     sys->dts       = 0;
 293     sys->deadline  = VLC_TS_INVALID;
 294
 295     *sys_ptr = sys;
 296     return VLC_SUCCESS;
 297 }
 298
 299 /**
 300  * It opens an imem access.
 301  */
 302 static int OpenAccess(vlc_object_t *object)
 303 {
 304     access_t   *access = (access_t *)object;
 305     imem_sys_t *sys;
 306
 307     if (OpenCommon(object, &sys, access->psz_location))
 308         return VLC_EGENERIC;
 309
 310     if (var_InheritInteger(object, "imem-cat") != 4) {
 311         CloseCommon(sys);
 312         return VLC_EGENERIC;
 313     }
 314
 315     /* */
 316     access_InitFields(access);
 317     access->pf_control = ControlAccess;
 318     access->pf_read    = NULL;
 319     access->pf_block   = Block;
 320     access->pf_seek    = NULL;
 321     access->p_sys      = (access_sys_t*)sys;
 322     access->info.i_size = var_InheritInteger(object, "imem-size");
 323
 324     return VLC_SUCCESS;
 325 }
 326
 327 /**
 328  * It closes an imem access
 329  */
 330 static void CloseAccess(vlc_object_t *object)
 331 {
 332     access_t *access = (access_t *)object;
 333
 334     CloseCommon((imem_sys_t*)access->p_sys);
 335 }
 336
 337 /**
 338  * It controls an imem access
 339  */
 340 static int ControlAccess(access_t *access, int i_query, va_list args)
 341 {
 342     imem_sys_t *sys = (imem_sys_t*)access->p_sys;
 343
 344     switch (i_query)
 345     {
 346     case ACCESS_CAN_SEEK:
 347     case ACCESS_CAN_FASTSEEK: {
 348         bool *b = va_arg( args, bool* );
 349         *b = false;
 350         return VLC_SUCCESS;
 351     }
 352     case ACCESS_CAN_PAUSE:
 353     case ACCESS_CAN_CONTROL_PACE: {
 354         bool *b = va_arg( args, bool* );
 355         *b = true;
 356         return VLC_SUCCESS;
 357     }
 358     case ACCESS_GET_PTS_DELAY: {
 359         int64_t *delay = va_arg(args, int64_t *);
 360         *delay = sys->pts_delay;
 361         return VLC_SUCCESS;
 362     }
 363     case ACCESS_SET_PAUSE_STATE:
 364         return VLC_SUCCESS;
 365
 366     case ACCESS_GET_TITLE_INFO:
 367     case ACCESS_SET_TITLE:
 368     case ACCESS_SET_SEEKPOINT:
 369     case ACCESS_SET_PRIVATE_ID_STATE:
 370     case ACCESS_GET_META:
 371     case ACCESS_GET_PRIVATE_ID_STATE:
 372     case ACCESS_GET_CONTENT_TYPE:
 373     default:
 374         return VLC_EGENERIC;
 375     }
 376 }
 377
 378 /**
 379  * It retreives data using the get() callback, copies them,
 380  * and then release them using the release() callback.
 381  */
 382 static block_t *Block(access_t *access)
 383 {
 384     imem_sys_t *sys = (imem_sys_t*)access->p_sys;
 385
 386     unsigned flags;
 387     size_t buffer_size;
 388     void   *buffer;
 389
 390     if (sys->source.get(sys->source.data, sys->source.cookie,
 391                         NULL, NULL, &flags, &buffer_size, &buffer)) {
 392         access->info.b_eof = true;
 393         return NULL;
 394     }
 395
 396     block_t *block = NULL;
 397     if (buffer_size > 0) {
 398         block = block_New(access, buffer_size);
 399         if (block)
 400             memcpy(block->p_buffer, buffer, buffer_size);
 401     }
 402
 403     sys->source.release(sys->source.data, sys->source.cookie,
 404                         buffer_size, buffer);
 405     return block;
 406 }
 407
 408 /**
 409  * It opens an imem access_demux.
 410  */
 411 static int OpenDemux(vlc_object_t *object)
 412 {
 413     demux_t    *demux = (demux_t *)object;
 414     imem_sys_t *sys;
 415
 416     if (OpenCommon(object, &sys, demux->psz_location))
 417         return VLC_EGENERIC;
 418
 419     /* ES format */
 420     es_format_t fmt;
 421     es_format_Init(&fmt, UNKNOWN_ES, 0);
 422
 423     fmt.i_id = var_InheritInteger(object, "imem-id");
 424     fmt.i_group = var_InheritInteger(object, "imem-group");
 425
 426     char *tmp = var_InheritString(object, "imem-codec");
 427     if (tmp)
 428         fmt.i_codec = vlc_fourcc_GetCodecFromString(UNKNOWN_ES, tmp);
 429     free(tmp);
 430
 431     const int cat = var_InheritInteger(object, "imem-cat");
 432     switch (cat) {
 433     case 1: {
 434         fmt.i_cat = AUDIO_ES;
 435         fmt.audio.i_channels = var_InheritInteger(object, "imem-channels");
 436         fmt.audio.i_rate = var_InheritInteger(object, "imem-samplerate");
 437
 438         msg_Dbg(object, "Audio %4.4s %d channels %d Hz",
 439                 (const char *)&fmt.i_codec,
 440                 fmt.audio.i_channels, fmt.audio.i_rate);
 441         break;
 442     }
 443     case 2: {
 444         fmt.i_cat = VIDEO_ES;
 445         fmt.video.i_width  = var_InheritInteger(object, "imem-width");
 446         fmt.video.i_height = var_InheritInteger(object, "imem-height");
 447         unsigned num, den;
 448         if (!var_InheritURational(object, &num, &den, "imem-dar") && num > 0 && den > 0) {
 449             if (fmt.video.i_width > 0 && fmt.video.i_height > 0) {
 450                 fmt.video.i_sar_num = num * fmt.video.i_height;
 451                 fmt.video.i_sar_den = den * fmt.video.i_width;
 452             }
 453         }
 454         if (!var_InheritURational(object, &num, &den, "imem-fps") && num > 0 && den > 0) {
 455             fmt.video.i_frame_rate      = num;
 456             fmt.video.i_frame_rate_base = den;
 457         }
 458
 459         msg_Dbg(object, "Video %4.4s %dx%d  SAR %d:%d frame rate %u/%u",
 460                 (const char *)&fmt.i_codec,
 461                 fmt.video.i_width, fmt.video.i_height,
 462                 fmt.video.i_sar_num, fmt.video.i_sar_den,
 463                 fmt.video.i_frame_rate, fmt.video.i_frame_rate_base);
 464         break;
 465     }
 466     case 3: {
 467         fmt.i_cat = SPU_ES;
 468         fmt.subs.spu.i_original_frame_width =
 469             var_InheritInteger(object, "imem-width");
 470         fmt.subs.spu.i_original_frame_height =
 471             var_InheritInteger(object, "imem-height");
 472
 473         msg_Dbg(object, "Subtitle %4.4s",
 474                 (const char *)&fmt.i_codec);
 475         break;
 476     }
 477     default:
 478         if (cat != 4)
 479             msg_Err(object, "Invalid ES category");
 480         es_format_Clean(&fmt);
 481         CloseCommon(sys);
 482         return VLC_EGENERIC;
 483     }
 484
 485     fmt.psz_language = var_InheritString(object, "imem-language");
 486
 487     sys->es = es_out_Add(demux->out, &fmt);
 488     es_format_Clean(&fmt);
 489
 490     if (!sys->es) {
 491         CloseCommon(sys);
 492         return VLC_EGENERIC;
 493     }
 494
 495     /* */
 496     demux->pf_control = ControlDemux;
 497     demux->pf_demux   = Demux;
 498     demux->p_sys      = (demux_sys_t*)sys;
 499
 500     demux->info.i_update = 0;
 501     demux->info.i_title = 0;
 502     demux->info.i_seekpoint = 0;
 503     return VLC_SUCCESS;
 504 }
 505
 506 /**
 507  * It closes an imem access_demux
 508  */
 509 static void CloseDemux(vlc_object_t *object)
 510 {
 511     demux_t *demux = (demux_t *)object;
 512
 513     CloseCommon((imem_sys_t*)demux->p_sys);
 514 }
 515
 516 /**
 517  * It controls an imem access_demux
 518  */
 519 static int ControlDemux(demux_t *demux, int i_query, va_list args)
 520 {
 521     imem_sys_t *sys = (imem_sys_t*)demux->p_sys;
 522
 523     switch (i_query)
 524     {
 525     case DEMUX_CAN_PAUSE:
 526     case DEMUX_CAN_CONTROL_PACE: {
 527         bool *b = va_arg(args, bool *);
 528         *b = true;
 529         return VLC_SUCCESS;
 530     }
 531     case DEMUX_SET_PAUSE_STATE:
 532         return VLC_SUCCESS;
 533
 534     case DEMUX_GET_PTS_DELAY: {
 535         int64_t *delay = va_arg(args, int64_t *);
 536         *delay = sys->pts_delay;
 537         return VLC_SUCCESS;
 538     }
 539     case DEMUX_GET_POSITION: {
 540         double *position = va_arg(args, double *);
 541         *position = 0.0;
 542         return VLC_SUCCESS;
 543     }
 544     case DEMUX_GET_TIME: {
 545         int64_t *t = va_arg(args, int64_t *);
 546         *t = sys->dts;
 547         return VLC_SUCCESS;
 548     }
 549     case DEMUX_GET_LENGTH: {
 550         int64_t *l = va_arg(args, int64_t *);
 551         *l = 0;
 552         return VLC_SUCCESS;
 553     }
 554     case DEMUX_SET_NEXT_DEMUX_TIME:
 555         sys->deadline = va_arg(args, int64_t);
 556         return VLC_SUCCESS;
 557
 558     /* */
 559     case DEMUX_CAN_SEEK:
 560     case DEMUX_SET_POSITION:
 561     case DEMUX_SET_TIME:
 562     default:
 563         return VLC_EGENERIC;
 564     }
 565
 566     return VLC_EGENERIC;
 567 }
 568
 569 /**
 570  * It retreives data using the get() callback, sends them to es_out
 571  * and the release it using the release() callback.
 572  */
 573 static int Demux(demux_t *demux)
 574 {
 575     imem_sys_t *sys = (imem_sys_t*)demux->p_sys;
 576
 577     if (sys->deadline == VLC_TS_INVALID)
 578         sys->deadline = sys->dts + 1;
 579
 580     for (;;) {
 581         if (sys->deadline <= sys->dts)
 582             break;
 583
 584         /* */
 585         int64_t dts, pts;
 586         unsigned flags;
 587         size_t buffer_size;
 588         void   *buffer;
 589
 590         if (sys->source.get(sys->source.data, sys->source.cookie,
 591                             &dts, &pts, &flags, &buffer_size, &buffer))
 592             return 0;
 593
 594         if (dts < 0)
 595             dts = pts;
 596
 597         if (buffer_size > 0) {
 598             block_t *block = block_New(demux, buffer_size);
 599             if (block) {
 600                 block->i_dts = dts >= 0 ? (1 + dts) : VLC_TS_INVALID;
 601                 block->i_pts = pts >= 0 ? (1 + pts) : VLC_TS_INVALID;
 602                 memcpy(block->p_buffer, buffer, buffer_size);
 603
 604                 es_out_Control(demux->out, ES_OUT_SET_PCR, block->i_dts);
 605                 es_out_Send(demux->out, sys->es, block);
 606             }
 607         }
 608
 609         sys->dts = dts;
 610
 611         sys->source.release(sys->source.data, sys->source.cookie,
 612                             buffer_size, buffer);
 613     }
 614     sys->deadline = VLC_TS_INVALID;
 615     return 1;
 616 }
 617
 618 /**
 619  * Parse the MRL and extract configuration from it.
 620  *
 621  * Syntax: option1=value1[:option2=value2[...]]
 622  *
 623  * XXX get and release are not supported on purpose.
 624  */
 625 static void ParseMRL(vlc_object_t *object, const char *psz_path)
 626 {
 627     static const struct {
 628         const char *name;
 629         int        type;
 630     } options[] = {
 631         { "caching",    VLC_VAR_INTEGER },
 632         { "id",         VLC_VAR_INTEGER },
 633         { "group",      VLC_VAR_INTEGER },
 634         { "cat",        VLC_VAR_INTEGER },
 635         { "samplerate", VLC_VAR_INTEGER },
 636         { "channels",   VLC_VAR_INTEGER },
 637         { "width",      VLC_VAR_INTEGER },
 638         { "height",     VLC_VAR_INTEGER },
 639         { "cookie",     VLC_VAR_STRING },
 640         { "codec",      VLC_VAR_STRING },
 641         { "language",   VLC_VAR_STRING },
 642         { "dar",        VLC_VAR_STRING },
 643         { "fps",        VLC_VAR_STRING },
 644         { NULL, -1 }
 645     };
 646
 647     char *dup = strdup(psz_path);
 648     if (!dup)
 649         return;
 650     char *current = dup;
 651
 652     while (current) {
 653         char *next = strchr(current, ':');
 654         if (next)
 655             *next++ = '\0';
 656
 657         char *option = current;
 658         char *value = strchr(current, '=');
 659         if (value) {
 660             *value++ = '\0';
 661             msg_Dbg(object, "option '%s' value '%s'", option, value);
 662         } else {
 663             msg_Dbg(object, "option '%s' without value (unsupported)", option);
 664         }
 665
 666         char *name;
 667         if (asprintf(&name, "imem-%s", option) < 0)
 668             name = NULL;
 669         for (unsigned i = 0; name && options[i].name; i++) {
 670             if (strcmp(options[i].name, option))
 671                 continue;
 672             /* */
 673             var_Create(object, name, options[i].type | VLC_VAR_DOINHERIT);
 674             if (options[i].type == VLC_VAR_INTEGER && value) {
 675                 var_SetInteger(object, name, strtol(value, NULL, 0));
 676             } else if (options[i].type == VLC_VAR_STRING && value) {
 677                 var_SetString(object, name, value);
 678             }
 679             break;
 680         }
 681         free(name);
 682
 683         /* */
 684         current = next;
 685     }
 686     free(dup);
 687 }