src/modules/generic/emotion_generic.c

   1 #ifdef HAVE_CONFIG_H
   2 # include "config.h"
   3 #endif
   4 #include <sys/mman.h>
   5 #include <sys/stat.h>
   6 #include <sys/time.h>
   7 #include <sys/types.h>
   8 #include <fcntl.h>
   9 #include <unistd.h>
  10 #include <Eina.h>
  11 #include <Evas.h>
  12
  13 #include "Emotion.h"
  14 #include "emotion_private.h"
  15 #include "emotion_generic.h"
  16
  17 static Eina_Prefix *pfx = NULL;
  18
  19 static int _emotion_generic_log_domain = -1;
  20 #define DBG(...) EINA_LOG_DOM_DBG(_emotion_generic_log_domain, __VA_ARGS__)
  21 #define INF(...) EINA_LOG_DOM_INFO(_emotion_generic_log_domain, __VA_ARGS__)
  22 #define WRN(...) EINA_LOG_DOM_WARN(_emotion_generic_log_domain, __VA_ARGS__)
  23 #define ERR(...) EINA_LOG_DOM_ERR(_emotion_generic_log_domain, __VA_ARGS__)
  24 #define CRITICAL(...) EINA_LOG_DOM_CRIT(_emotion_generic_log_domain, __VA_ARGS__)
  25
  26
  27 struct _default_players {
  28    const char *name;
  29    const char *cmdline;
  30 };
  31
  32 static struct _default_players players[] = {
  33 #ifdef EMOTION_BUILD_GENERIC_VLC
  34        { "vlc", "em_generic_vlc" },
  35 #endif
  36        { NULL, NULL }
  37 };
  38
  39 static const char *
  40 _get_player(const char *name)
  41 {
  42    const char *selected_name = NULL;
  43    const char *libdir = eina_prefix_lib_get(pfx);
  44    static char buf[PATH_MAX];
  45    int i;
  46
  47    if (name)
  48      {
  49         for (i = 0; players[i].name; i++)
  50           {
  51              if (!strcmp(players[i].name, name))
  52                {
  53                   selected_name = players[i].cmdline;
  54                   break;
  55                }
  56           }
  57      }
  58
  59    if ((!selected_name) && (name))
  60      selected_name = name;
  61
  62    if (selected_name)
  63      {
  64         const char *cmd;
  65
  66         if (selected_name[0] == '/') cmd = selected_name;
  67         else
  68           {
  69              snprintf(buf, sizeof(buf), "%s/emotion/utils/%s",
  70                       libdir, selected_name);
  71              cmd = buf;
  72           }
  73
  74         DBG("Try generic player '%s'", cmd);
  75         if (access(cmd, R_OK | X_OK) == 0)
  76           {
  77              INF("Using generic player '%s'", cmd);
  78              return cmd;
  79           }
  80      }
  81
  82    for (i = 0; players[i].name; i++)
  83      {
  84         snprintf(buf, sizeof(buf), "%s/emotion/utils/%s",
  85                  libdir, players[i].cmdline);
  86         DBG("Try generic player '%s'", buf);
  87         if (access(buf, R_OK | X_OK) == 0)
  88           {
  89              INF("Using fallback player '%s'", buf);
  90              return buf;
  91           }
  92      }
  93
  94    ERR("no generic player found, given name='%s'", name ? name : "");
  95    return NULL;
  96 }
  97
  98 static void
  99 _player_send_cmd(Emotion_Generic_Video *ev, int cmd)
 100 {
 101    if (cmd >= EM_CMD_LAST)
 102      {
 103         ERR("invalid command to player.");
 104         return;
 105      }
 106    write(ev->fd_write, &cmd, sizeof(cmd));
 107 }
 108
 109 static void
 110 _player_send_int(Emotion_Generic_Video *ev, int number)
 111 {
 112    write(ev->fd_write, &number, sizeof(number));
 113 }
 114
 115 static void
 116 _player_send_float(Emotion_Generic_Video *ev, float number)
 117 {
 118    write(ev->fd_write, &number, sizeof(number));
 119 }
 120
 121 static void
 122 _player_send_str(Emotion_Generic_Video *ev, const char *str, Eina_Bool stringshared)
 123 {
 124    int len;
 125
 126    if (stringshared)
 127      len = eina_stringshare_strlen(str) + 1;
 128    else
 129      len = strlen(str) + 1;
 130    write(ev->fd_write, &len, sizeof(len));
 131    write(ev->fd_write, str, len);
 132 }
 133
 134 static Eina_Bool
 135 _create_shm_data(Emotion_Generic_Video *ev, const char *shmname)
 136 {
 137    int shmfd;
 138    int npages;
 139    size_t size;
 140    Emotion_Generic_Video_Shared *vs;
 141
 142    shmfd = shm_open(shmname, O_CREAT | O_RDWR | O_TRUNC, 0777);
 143    if (shmfd == -1)
 144      {
 145         ERR("player: could not open shm: %s", shmname);
 146         ERR("player: %s", strerror(errno));
 147         return 0;
 148      }
 149    size = 3 * (ev->w * ev->h * DEFAULTPITCH) + sizeof(*vs);
 150
 151    npages = (int)(size / getpagesize()) + 1;
 152    size = npages * getpagesize();
 153
 154    if (ftruncate(shmfd, size))
 155      {
 156         ERR("error when allocating shared memory (size = %zd): "
 157             "%s", size, strerror(errno));
 158         shm_unlink(shmname);
 159         return EINA_FALSE;
 160      }
 161    vs = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_SHARED, shmfd, 0);
 162    if (vs == MAP_FAILED)
 163      {
 164         ERR("error when mapping shared memory.\n");
 165         return EINA_FALSE;
 166      }
 167
 168    vs->size = size;
 169    vs->width = ev->w;
 170    vs->height = ev->h;
 171    vs->pitch = DEFAULTPITCH;
 172    vs->frame.emotion = 0;
 173    vs->frame.player = 1;
 174    vs->frame.last = 2;
 175    vs->frame.next = 2;
 176    sem_init(&vs->lock, 1, 1);
 177    ev->frame.frames[0] = (unsigned char *)vs + sizeof(*vs);
 178    ev->frame.frames[1] = (unsigned char *)vs + sizeof(*vs) + vs->height * vs->width * vs->pitch;
 179    ev->frame.frames[2] = (unsigned char *)vs + sizeof(*vs) + 2 * vs->height * vs->width * vs->pitch;
 180
 181    if (ev->shared)
 182      munmap(ev->shared, ev->shared->size);
 183    ev->shared = vs;
 184
 185    return EINA_TRUE;
 186 }
 187
 188 static void
 189 _player_new_frame(Emotion_Generic_Video *ev)
 190 {
 191    if (ev->opening || ev->closing)
 192      return;
 193    if (!ev->drop++)
 194      _emotion_frame_new(ev->obj);
 195 }
 196
 197 static void
 198 _file_open(Emotion_Generic_Video *ev)
 199 {
 200    INF("Opening file: %s", ev->filename);
 201    ev->drop = 0;
 202
 203    if (!ev->ready || !ev->filename)
 204      return;
 205    _player_send_cmd(ev, EM_CMD_FILE_SET);
 206    _player_send_str(ev, ev->filename, EINA_TRUE);
 207 }
 208
 209 static void
 210 _player_file_set_done(Emotion_Generic_Video *ev)
 211 {
 212    if (ev->file_changed)
 213      {
 214         _file_open(ev);
 215         ev->file_changed = EINA_FALSE;
 216         return;
 217      }
 218
 219    if (!_create_shm_data(ev, ev->shmname))
 220      {
 221         ERR("could not create shared memory.");
 222         return;
 223      }
 224    _player_send_cmd(ev, EM_CMD_FILE_SET_DONE);
 225 }
 226
 227 static void
 228 _player_ready(Emotion_Generic_Video *ev)
 229 {
 230    INF("received: player ready.");
 231
 232    ev->initializing = EINA_FALSE;
 233    ev->ready = EINA_TRUE;
 234
 235    if (!ev->filename)
 236      return;
 237
 238    _file_open(ev);
 239 }
 240
 241 static int
 242 _em_read_safe(int fd, void *buf, ssize_t size)
 243 {
 244    ssize_t todo;
 245    char *p;
 246
 247    todo = size;
 248    p = buf;
 249
 250    while (todo > 0)
 251      {
 252         ssize_t r;
 253
 254         r = read(fd, p, todo);
 255         if (r > 0)
 256           {
 257              todo -= r;
 258              p += r;
 259           }
 260         else if (r == 0)
 261           return 0;
 262         else
 263           {
 264              if (errno == EINTR || errno == EAGAIN)
 265                continue;
 266              else
 267                {
 268                   ERR("could not read from fd %d: %s", fd, strerror(errno));
 269                   return 0;
 270                }
 271           }
 272      }
 273
 274    return 1;
 275 }
 276
 277 static Eina_Bool
 278 _player_int_read(Emotion_Generic_Video *ev, int *i)
 279 {
 280    int n;
 281    n = _em_read_safe(ev->fd_read, i, sizeof(*i));
 282    if (n <= 0)
 283      {
 284         ERR("could not read int from fd_read %d\n", ev->fd_read);
 285         return EINA_FALSE;
 286      }
 287
 288    return EINA_TRUE;
 289 }
 290
 291 static Eina_Bool
 292 _player_float_read(Emotion_Generic_Video *ev, float *f)
 293 {
 294    int n;
 295    n = _em_read_safe(ev->fd_read, f, sizeof(*f));
 296    if (n <= 0)
 297      {
 298         ERR("could not read float from fd_read %d\n", ev->fd_read);
 299         return EINA_FALSE;
 300      }
 301
 302    return EINA_TRUE;
 303 }
 304
 305 static Eina_Bool
 306 _player_str_read(Emotion_Generic_Video *ev, char *str, int *len)
 307 {
 308    int n;
 309
 310    if (!_player_int_read(ev, len))
 311      return EINA_FALSE;
 312
 313    n = _em_read_safe(ev->fd_read, str, *len);
 314    if (n <= 0)
 315      {
 316         ERR("could not read string from fd_read %d\n", ev->fd_read);
 317         return EINA_FALSE;
 318      }
 319
 320    return EINA_TRUE;
 321 }
 322
 323 static void
 324 _player_frame_resize(Emotion_Generic_Video *ev)
 325 {
 326    int w, h;
 327    _player_int_read(ev, &w);
 328    _player_int_read(ev, &h);
 329
 330    INF("received frame resize: %dx%d", w, h);
 331    ev->w = w;
 332    ev->h = h;
 333    ev->ratio = (float)w / h;
 334
 335    if (ev->opening)
 336      return;
 337
 338    _emotion_frame_resize(ev->obj, ev->w, ev->h, ev->ratio);
 339 }
 340
 341 static void
 342 _player_length_changed(Emotion_Generic_Video *ev)
 343 {
 344    float length;
 345    _player_float_read(ev, &length);
 346
 347    INF("received length changed: %0.3f", length);
 348
 349    ev->len = length;
 350    _emotion_video_pos_update(ev->obj, ev->pos, ev->len);
 351 }
 352
 353 static void
 354 _player_position_changed(Emotion_Generic_Video *ev)
 355 {
 356    float position;
 357    _player_float_read(ev, &position);
 358
 359    INF("received position changed: %0.3f", position);
 360
 361    ev->pos = position;
 362    _emotion_video_pos_update(ev->obj, ev->pos, ev->len);
 363
 364    if (ev->len == 0)
 365      return;
 366
 367    float progress = ev->pos / ev->len;
 368    char buf[16];
 369    snprintf(buf, sizeof(buf), "%0.1f%%", progress * 100);
 370
 371    _emotion_progress_set(ev->obj, buf, progress);
 372 }
 373
 374 static void
 375 _player_seekable_changed(Emotion_Generic_Video *ev)
 376 {
 377    int seekable;
 378    _player_int_read(ev, &seekable);
 379
 380    INF("received seekable changed: %d", seekable);
 381
 382    seekable = !!seekable;
 383
 384    ev->seekable = seekable;
 385 }
 386
 387 static void
 388 _player_volume(Emotion_Generic_Video *ev)
 389 {
 390    float vol, oldvol;
 391    _player_float_read(ev, &vol);
 392
 393    INF("received volume: %0.3f", vol);
 394
 395    oldvol = ev->volume;
 396    ev->volume = vol;
 397    if (vol != oldvol && !ev->opening)
 398      _emotion_audio_level_change(ev->obj);
 399 }
 400
 401 static void
 402 _player_audio_mute(Emotion_Generic_Video *ev)
 403 {
 404    int mute;
 405    _player_int_read(ev, &mute);
 406
 407    INF("received audio mute: %d", mute);
 408
 409    ev->audio_mute = !!mute;
 410 }
 411
 412 static void
 413 _audio_channels_free(Emotion_Generic_Video *ev)
 414 {
 415    int i;
 416    for (i = 0; i < ev->audio_channels_count; i++)
 417      eina_stringshare_del(ev->audio_channels[i].name);
 418    free(ev->audio_channels);
 419    ev->audio_channels_count = 0;
 420 }
 421
 422 static void
 423 _player_audio_tracks_info(Emotion_Generic_Video *ev)
 424 {
 425    int track_current, tracks_count;
 426    int i;
 427
 428    if (ev->audio_channels_count)
 429      _audio_channels_free(ev);
 430
 431    _player_int_read(ev, &track_current);
 432    _player_int_read(ev, &tracks_count);
 433    INF("video with %d audio tracks (current = %d):", tracks_count, track_current);
 434    ev->audio_channels = calloc(
 435       tracks_count, sizeof(Emotion_Generic_Audio_Channel));
 436    ev->audio_channels_count = tracks_count;
 437    ev->audio_channel_current = track_current;
 438    for (i = 0; i < tracks_count; i++)
 439      {
 440         int tid, len;
 441         char buf[PATH_MAX];
 442         _player_int_read(ev, &tid);
 443         _player_str_read(ev, buf, &len);
 444         ev->audio_channels[i].id = tid;
 445         ev->audio_channels[i].name = eina_stringshare_add_length(buf, len);
 446         INF("\t%d: %s", tid, buf);
 447      }
 448 }
 449
 450 static void
 451 _player_file_closed(Emotion_Generic_Video *ev)
 452 {
 453    INF("Closed previous file.");
 454    sem_destroy(&ev->shared->lock);
 455
 456    ev->closing = EINA_FALSE;
 457
 458    if (ev->opening)
 459      _file_open(ev);
 460 }
 461
 462 static void
 463 _player_open_done(Emotion_Generic_Video *ev)
 464 {
 465    int success;
 466
 467    _player_int_read(ev, &success);
 468    shm_unlink(ev->shmname);
 469
 470    if (ev->file_changed)
 471      {
 472         _file_open(ev);
 473         ev->file_changed = EINA_FALSE;
 474         return;
 475      }
 476
 477    ev->opening = EINA_FALSE;
 478    if (!success)
 479      {
 480         ERR("Could not open file.");
 481         return;
 482      }
 483
 484    _emotion_open_done(ev->obj);
 485
 486    if (ev->play)
 487      {
 488         _player_send_cmd(ev, EM_CMD_PLAY);
 489         _player_send_float(ev, ev->pos);
 490      }
 491
 492    INF("Open done");
 493 }
 494
 495 static void
 496 _player_read_cmd(Emotion_Generic_Video *ev)
 497 {
 498    int type;
 499
 500    if (!_player_int_read(ev, &type))
 501      {
 502         ERR("could not read command\n");
 503         return;
 504      }
 505
 506    switch (type) {
 507       case EM_RESULT_INIT:
 508          _player_ready(ev);
 509          break;
 510       case EM_RESULT_FRAME_NEW:
 511          _player_new_frame(ev);
 512          break;
 513       case EM_RESULT_FILE_SET:
 514          _player_file_set_done(ev);
 515          break;
 516       case EM_RESULT_FILE_SET_DONE:
 517          _player_open_done(ev);
 518          break;
 519       case EM_RESULT_FILE_CLOSE:
 520          _player_file_closed(ev);
 521          break;
 522       case EM_RESULT_PLAYBACK_STOPPED:
 523          _emotion_playback_finished(ev->obj);
 524          break;
 525       case EM_RESULT_FRAME_SIZE:
 526          _player_frame_resize(ev);
 527          break;
 528       case EM_RESULT_LENGTH_CHANGED:
 529          _player_length_changed(ev);
 530          break;
 531       case EM_RESULT_POSITION_CHANGED:
 532          _player_position_changed(ev);
 533          break;
 534       case EM_RESULT_SEEKABLE_CHANGED:
 535          _player_seekable_changed(ev);
 536          break;
 537       case EM_RESULT_AUDIO_TRACK_INFO:
 538          _player_audio_tracks_info(ev);
 539          break;
 540       default:
 541          WRN("received wrong command: %d", type);
 542    };
 543 }
 544
 545 static Eina_Bool
 546 _player_cmd_handler_cb(void *data, Ecore_Fd_Handler *fd_handler)
 547 {
 548    Emotion_Generic_Video *ev = data;
 549
 550    if (ecore_main_fd_handler_active_get(fd_handler, ECORE_FD_ERROR))
 551      {
 552         ERR("an error occurred on fd_read %d.", ev->fd_read);
 553         return ECORE_CALLBACK_CANCEL;
 554      }
 555
 556    _player_read_cmd(ev);
 557
 558    return ECORE_CALLBACK_RENEW;
 559 }
 560
 561 static Eina_Bool
 562 _player_data_cb(void *data, int type __UNUSED__, void *event)
 563 {
 564    Ecore_Exe_Event_Data *ev = event;
 565    Emotion_Generic_Video *evideo = data;
 566    int i;
 567
 568    if (ev->exe != evideo->player.exe)
 569      {
 570         ERR("slave != ev->exe");
 571         return ECORE_CALLBACK_DONE;
 572      }
 573
 574    if (ev->size < 4)
 575      {
 576         ERR("invalid command: missing bytes.");
 577         return ECORE_CALLBACK_DONE;
 578      }
 579
 580    for (i = 0; ev->lines[i].line; i++)
 581      INF("received input from player: \"%s\"", ev->lines[i].line);
 582
 583    return ECORE_CALLBACK_DONE;
 584 }
 585
 586 static Eina_Bool
 587 _player_add_cb(void *data, int type __UNUSED__, void *event)
 588 {
 589    Ecore_Exe_Event_Add *event_add = event;
 590    Ecore_Exe *player = event_add->exe;
 591    Emotion_Generic_Video *ev = data;
 592
 593    if (ev->player.exe != player)
 594      {
 595         ERR("ev->player != player.");
 596         return ECORE_CALLBACK_DONE;
 597      }
 598
 599    _player_send_cmd(ev, EM_CMD_INIT);
 600    _player_send_str(ev, ev->shmname, EINA_TRUE);
 601
 602    return ECORE_CALLBACK_DONE;
 603 }
 604
 605 static Eina_Bool
 606 _player_del_cb(void *data, int type __UNUSED__, void *event __UNUSED__)
 607 {
 608    Emotion_Generic_Video *ev = data;
 609    ERR("player died.");
 610
 611    ev->player.exe = NULL;
 612    ev->ready = EINA_FALSE;
 613    ecore_main_fd_handler_del(ev->fd_handler);
 614    close(ev->fd_read);
 615    close(ev->fd_write);
 616    ev->fd_read = -1;
 617    ev->fd_write = -1;
 618    _emotion_decode_stop(ev->obj);
 619
 620    return ECORE_CALLBACK_DONE;
 621 }
 622
 623 static Eina_Bool
 624 _player_exec(Emotion_Generic_Video *ev)
 625 {
 626    int pipe_out[2];
 627    int pipe_in[2];
 628    char buf[PATH_MAX];
 629
 630    if (pipe(pipe_out) == -1)
 631      {
 632         ERR("could not create pipe for communication emotion -> player: %s", strerror(errno));
 633         return EINA_FALSE;
 634      }
 635
 636    if (pipe(pipe_in) == -1)
 637      {
 638         ERR("could not create pipe for communication player -> emotion: %s", strerror(errno));
 639         close(pipe_out[0]);
 640         close(pipe_out[1]);
 641         return EINA_FALSE;
 642      }
 643
 644    snprintf(buf, sizeof(buf), "%s %d %d\n", ev->cmdline, pipe_out[0], pipe_in[1]);
 645
 646    ev->player.exe = ecore_exe_pipe_run(
 647       buf,
 648       ECORE_EXE_PIPE_READ | ECORE_EXE_PIPE_WRITE |
 649       ECORE_EXE_PIPE_READ_LINE_BUFFERED | ECORE_EXE_NOT_LEADER,
 650       ev);
 651
 652    INF("created pipe emotion -> player: %d -> %d\n", pipe_out[1], pipe_out[0]);
 653    INF("created pipe player -> emotion: %d -> %d\n", pipe_in[1], pipe_in[0]);
 654
 655    close(pipe_in[1]);
 656    close(pipe_out[0]);
 657
 658    if (!ev->player.exe)
 659      {
 660         close(pipe_in[0]);
 661         close(pipe_out[1]);
 662         return EINA_FALSE;
 663      }
 664
 665    ev->fd_read = pipe_in[0];
 666    ev->fd_write = pipe_out[1];
 667
 668    ev->fd_handler = ecore_main_fd_handler_add(
 669       ev->fd_read, ECORE_FD_READ | ECORE_FD_ERROR, _player_cmd_handler_cb, ev,
 670       NULL, NULL);
 671
 672    return EINA_TRUE;
 673 }
 674
 675 static Eina_Bool
 676 _fork_and_exec(Evas_Object *obj, Emotion_Generic_Video *ev)
 677 {
 678    char shmname[256];
 679    struct timeval tv;
 680
 681    gettimeofday(&tv, NULL);
 682    snprintf(shmname, sizeof(shmname), "/em-generic-shm_%d_%d",
 683             (int)tv.tv_sec, (int)tv.tv_usec);
 684
 685    ev->shmname = eina_stringshare_add(shmname);
 686
 687    ev->player_add = ecore_event_handler_add(
 688       ECORE_EXE_EVENT_ADD, _player_add_cb, ev);
 689    ev->player_del = ecore_event_handler_add(
 690       ECORE_EXE_EVENT_DEL, _player_del_cb, ev);
 691    ev->player_data = ecore_event_handler_add(
 692       ECORE_EXE_EVENT_DATA, _player_data_cb, ev);
 693
 694
 695    if (!_player_exec(ev))
 696      {
 697         ERR("could not start player.");
 698         return EINA_FALSE;
 699      }
 700
 701    ev->initializing = EINA_TRUE;
 702
 703    return EINA_TRUE;
 704 }
 705
 706 static unsigned char
 707 em_init(Evas_Object *obj, void **emotion_video, Emotion_Module_Options *opt)
 708 {
 709    Emotion_Generic_Video *ev;
 710    const char *player;
 711
 712    if (!emotion_video) return 0;
 713    player = _get_player(opt ? opt->player : NULL);
 714    if (!player) return 0;
 715
 716    ev = (Emotion_Generic_Video *)calloc(1, sizeof(*ev));
 717    if (!ev) return 0;
 718
 719    ev->fd_read = -1;
 720    ev->fd_write = -1;
 721    ev->speed = 1.0;
 722    ev->volume = 0.5;
 723    ev->audio_mute = EINA_FALSE;
 724
 725    ev->obj = obj;
 726    ev->cmdline = eina_stringshare_add(player);
 727    *emotion_video = ev;
 728
 729    return _fork_and_exec(obj, ev);
 730 }
 731
 732 static int
 733 em_shutdown(void *data)
 734 {
 735    Emotion_Generic_Video *ev = data;
 736
 737    if (!ev) return 0;
 738
 739    if (ev->player.exe)
 740      {
 741         ecore_exe_terminate(ev->player.exe);
 742         ecore_exe_free(ev->player.exe);
 743         ev->player.exe = NULL;
 744      }
 745
 746    if (ev->shared)
 747      munmap(ev->shared, ev->shared->size);
 748
 749    if (ev->fd_read >= 0)
 750      close(ev->fd_read);
 751    if (ev->fd_write >= 0)
 752      close(ev->fd_write);
 753    if (ev->fd_handler)
 754      ecore_main_fd_handler_del(ev->fd_handler);
 755
 756    _audio_channels_free(ev);
 757
 758    eina_stringshare_del(ev->cmdline);
 759    eina_stringshare_del(ev->shmname);
 760
 761    ecore_event_handler_del(ev->player_add);
 762    ecore_event_handler_del(ev->player_data);
 763    ecore_event_handler_del(ev->player_del);
 764
 765    return 1;
 766 }
 767
 768 static unsigned char
 769 em_file_open(const char *file, Evas_Object *obj __UNUSED__, void *data)
 770 {
 771    Emotion_Generic_Video *ev = data;
 772    INF("file set: %s", file);
 773    if (!ev) return 0;
 774
 775    eina_stringshare_replace(&ev->filename, file);
 776
 777    ev->pos = 0;
 778    ev->w = 0;
 779    ev->h = 0;
 780    ev->ratio = 1;
 781    ev->speed = 1.0;
 782    ev->len = 0;
 783
 784    if (ev->ready && ev->opening)
 785      {
 786         INF("file changed while opening.");
 787         ev->file_changed = EINA_TRUE;
 788         return 1;
 789      }
 790
 791    ev->opening = EINA_TRUE;
 792
 793    if (!ev->closing)
 794      _file_open(ev);
 795
 796    return 1;
 797 }
 798
 799 static void
 800 em_file_close(void *data)
 801 {
 802    Emotion_Generic_Video *ev = data;
 803
 804    if (!ev || !ev->filename) return;
 805
 806    INF("file close: %s", ev->filename);
 807
 808    eina_stringshare_replace(&ev->filename, NULL);
 809
 810    if (ev->opening)
 811      return;
 812
 813    _player_send_cmd(ev, EM_CMD_FILE_CLOSE);
 814    ev->closing = EINA_TRUE;
 815 }
 816
 817 static Emotion_Format
 818 em_format_get(void *ef __UNUSED__)
 819 {
 820    return EMOTION_FORMAT_BGRA;
 821 }
 822
 823 static void
 824 em_video_data_size_get(void *data, int *w, int *h)
 825 {
 826    Emotion_Generic_Video *ev = data;
 827
 828    if (!ev) return;
 829    if (w) *w = ev->w;
 830    if (h) *h = ev->h;
 831 }
 832
 833 static void
 834 em_play(void *data, double pos)
 835 {
 836    Emotion_Generic_Video *ev = data;
 837
 838    if (!ev)
 839      return;
 840
 841    ev->play = EINA_TRUE;
 842    INF("play: %0.3f", pos);
 843
 844    if (ev->initializing || ev->opening)
 845      return;
 846
 847    if (ev->ready)
 848      {
 849         _player_send_cmd(ev, EM_CMD_PLAY);
 850         _player_send_float(ev, ev->pos);
 851         return;
 852      }
 853
 854    if (!_player_exec(ev))
 855      ERR("could not start player.");
 856 }
 857
 858 static void
 859 em_stop(void *data)
 860 {
 861    Emotion_Generic_Video *ev = data;
 862
 863    if (!ev)
 864      return;
 865
 866    ev->play = EINA_FALSE;
 867
 868    if (!ev->ready)
 869      return;
 870
 871    _player_send_cmd(ev, EM_CMD_STOP);
 872    _emotion_decode_stop(ev->obj);
 873 }
 874
 875 static void
 876 em_size_get(void *data, int *w, int *h)
 877 {
 878    Emotion_Generic_Video *ev = data;
 879    if (w) *w = ev->w;
 880    if (h) *h = ev->h;
 881 }
 882
 883 static void
 884 em_pos_set(void *data, double pos)
 885 {
 886    Emotion_Generic_Video *ev = data;
 887    float position = pos;
 888    _player_send_cmd(ev, EM_CMD_POSITION_SET);
 889    _player_send_float(ev, position);
 890    _emotion_seek_done(ev->obj);
 891 }
 892
 893 static double
 894 em_len_get(void *data)
 895 {
 896    Emotion_Generic_Video *ev = data;
 897    return ev->len;
 898 }
 899
 900 static int
 901 em_fps_num_get(void *data)
 902 {
 903    Emotion_Generic_Video *ev = data;
 904    return (int)(ev->fps * 1000.0);
 905 }
 906
 907 static int
 908 em_fps_den_get(void *ef __UNUSED__)
 909 {
 910    return 1000;
 911 }
 912
 913 static double
 914 em_fps_get(void *data)
 915 {
 916    Emotion_Generic_Video *ev = data;
 917    return ev->fps;
 918 }
 919
 920 static double
 921 em_pos_get(void *data)
 922 {
 923    Emotion_Generic_Video *ev = data;
 924    return ev->pos;
 925 }
 926
 927 static void
 928 em_vis_set(void *ef __UNUSED__, Emotion_Vis vis __UNUSED__)
 929 {
 930 }
 931
 932 static Emotion_Vis
 933 em_vis_get(void *data)
 934 {
 935    Emotion_Generic_Video *ev = data;
 936    return ev->vis;
 937 }
 938
 939 static Eina_Bool
 940 em_vis_supported(void *ef __UNUSED__, Emotion_Vis vis __UNUSED__)
 941 {
 942    return EINA_FALSE;
 943 }
 944
 945 static double
 946 em_ratio_get(void *data)
 947 {
 948    Emotion_Generic_Video *ev = data;
 949    return ev->ratio;
 950 }
 951
 952 static int em_video_handled(void *ef __UNUSED__)
 953 {
 954    fprintf(stderr, "video handled!\n");
 955    return 1;
 956 }
 957
 958 static int em_audio_handled(void *ef __UNUSED__)
 959 {
 960    fprintf(stderr, "audio handled!\n");
 961    return 1;
 962 }
 963
 964 static int em_seekable(void *data)
 965 {
 966    Emotion_Generic_Video *ev = data;
 967    return ev->seekable;
 968 }
 969
 970 static void em_frame_done(void *ef __UNUSED__)
 971 {
 972 }
 973
 974 static int
 975 em_yuv_rows_get(void *data __UNUSED__, int w __UNUSED__, int h __UNUSED__, unsigned char **yrows __UNUSED__, unsigned char **urows __UNUSED__, unsigned char **vrows __UNUSED__)
 976 {
 977    return 0;
 978 }
 979
 980 static int
 981 em_bgra_data_get(void *data, unsigned char **bgra_data)
 982 {
 983    Emotion_Generic_Video *ev = data;
 984
 985    if (!ev || ev->opening || ev->closing)
 986      return 0;
 987
 988    // lock frame here
 989    sem_wait(&ev->shared->lock);
 990
 991    // send current frame to emotion
 992    if (ev->shared->frame.emotion != ev->shared->frame.last)
 993      {
 994         ev->shared->frame.next = ev->shared->frame.emotion;
 995         ev->shared->frame.emotion = ev->shared->frame.last;
 996      }
 997    *bgra_data = ev->frame.frames[ev->shared->frame.emotion];
 998
 999    // unlock frame here
1000    sem_post(&ev->shared->lock);
1001    ev->drop = 0;
1002
1003    return 1;
1004 }
1005
1006 static void
1007 em_event_feed(void *ef __UNUSED__, int event __UNUSED__)
1008 {
1009 }
1010
1011 static void
1012 em_event_mouse_button_feed(void *ef __UNUSED__, int button __UNUSED__, int x __UNUSED__, int y __UNUSED__)
1013 {
1014 }
1015
1016 static void
1017 em_event_mouse_move_feed(void *ef __UNUSED__, int x __UNUSED__, int y __UNUSED__)
1018 {
1019 }
1020
1021 static int
1022 em_video_channel_count(void *ef __UNUSED__)
1023 {
1024    int ret  = 0;
1025    return ret;
1026 }
1027
1028 static void
1029 em_video_channel_set(void *ef __UNUSED__, int channel __UNUSED__)
1030 {
1031 }
1032
1033 static int
1034 em_video_channel_get(void *ef __UNUSED__)
1035 {
1036    return 1;
1037 }
1038
1039 static const char *
1040 em_video_channel_name_get(void *ef __UNUSED__, int channel __UNUSED__)
1041 {
1042    return NULL;
1043 }
1044
1045 static void
1046 em_video_channel_mute_set(void *ef __UNUSED__, int mute __UNUSED__)
1047 {
1048 }
1049
1050 static int
1051 em_video_channel_mute_get(void *data)
1052 {
1053    Emotion_Generic_Video *ev = data;
1054    return ev->video_mute;
1055 }
1056
1057 static int
1058 em_audio_channel_count(void *data)
1059 {
1060    Emotion_Generic_Video *ev = data;
1061    return ev->audio_channels_count;
1062 }
1063
1064 static void
1065 em_audio_channel_set(void *data, int channel)
1066 {
1067    Emotion_Generic_Video *ev = data;
1068    int i;
1069
1070    for (i = 0; i < ev->audio_channels_count; i++)
1071      {
1072         if (ev->audio_channels[i].id == channel)
1073           {
1074              _player_send_cmd(ev, EM_CMD_AUDIO_TRACK_SET);
1075              _player_send_int(ev, channel);
1076              break;
1077           }
1078      }
1079 }
1080
1081 static int
1082 em_audio_channel_get(void *data)
1083 {
1084    Emotion_Generic_Video *ev = data;
1085    return ev->audio_channel_current;
1086 }
1087
1088 static const char *
1089 em_audio_channel_name_get(void *data, int channel)
1090 {
1091    Emotion_Generic_Video *ev = data;
1092    int i;
1093
1094    for (i = 0; i < ev->audio_channels_count; i++)
1095      {
1096         if (ev->audio_channels[i].id == channel)
1097           return ev->audio_channels[i].name;
1098      }
1099
1100    return NULL;
1101 }
1102
1103 static void
1104 em_audio_channel_mute_set(void *data, int mute)
1105 {
1106    Emotion_Generic_Video *ev = data;
1107    _player_send_cmd(ev, EM_CMD_AUDIO_MUTE_SET);
1108    _player_send_int(ev, mute);
1109    ev->audio_mute = !!mute;
1110 }
1111
1112 static int
1113 em_audio_channel_mute_get(void *data)
1114 {
1115    Emotion_Generic_Video *ev = data;
1116    return ev->audio_mute;
1117 }
1118
1119 static void
1120 em_audio_channel_volume_set(void *data, double vol)
1121 {
1122    Emotion_Generic_Video *ev = data;
1123    float fvol;
1124
1125    if (vol > 1.0) vol = 1.0;
1126    if (vol < 0.0) vol = 0.0;
1127
1128    fvol = vol;
1129    _player_send_cmd(ev, EM_CMD_VOLUME_SET);
1130    _player_send_float(ev, fvol);
1131
1132    ev->volume = vol;
1133 }
1134
1135 static double
1136 em_audio_channel_volume_get(void *data)
1137 {
1138    Emotion_Generic_Video *ev = data;
1139    return ev->volume;
1140 }
1141
1142 static int
1143 em_spu_channel_count(void *ef __UNUSED__)
1144 {
1145    return 0;
1146 }
1147
1148 static void
1149 em_spu_channel_set(void *ef __UNUSED__, int channel __UNUSED__)
1150 {
1151 }
1152
1153 static int
1154 em_spu_channel_get(void *ef __UNUSED__)
1155 {
1156    int num = 0;
1157    return num;
1158 }
1159
1160 static const char *
1161 em_spu_channel_name_get(void *ef __UNUSED__, int channel __UNUSED__)
1162 {
1163    return NULL;
1164 }
1165
1166 static void
1167 em_spu_channel_mute_set(void *ef __UNUSED__, int mute __UNUSED__)
1168 {
1169    return;
1170 }
1171
1172 static int
1173 em_spu_channel_mute_get(void *ef __UNUSED__)
1174 {
1175    return 0;
1176 }
1177
1178 static int
1179 em_chapter_count(void *ef __UNUSED__)
1180 {
1181    int num = 0;
1182    return num;
1183 }
1184
1185 static void
1186 em_chapter_set(void *ef __UNUSED__, int chapter __UNUSED__)
1187 {
1188 }
1189
1190 static int
1191 em_chapter_get(void *ef __UNUSED__)
1192 {
1193    int num = 0;
1194    return num;
1195 }
1196
1197 static const char *
1198 em_chapter_name_get(void *ef __UNUSED__, int chapter __UNUSED__)
1199 {
1200    return NULL;
1201 }
1202
1203 static void
1204 em_speed_set(void *data, double speed)
1205 {
1206    Emotion_Generic_Video *ev = data;
1207    float rate = speed;
1208
1209    _player_send_cmd(ev, EM_CMD_SPEED_SET);
1210    _player_send_float(ev, rate);
1211
1212    ev->speed = rate;
1213 }
1214
1215 static double
1216 em_speed_get(void *data)
1217 {
1218    Emotion_Generic_Video *ev = data;
1219    return (double)ev->speed;
1220 }
1221
1222 static int
1223 em_eject(void *ef __UNUSED__)
1224 {
1225    return 1;
1226 }
1227
1228 static const char *
1229 em_meta_get(void *ef __UNUSED__, int meta __UNUSED__)
1230 {
1231    char * meta_data = NULL;
1232    return meta_data;
1233 }
1234
1235 static Emotion_Video_Module em_module =
1236 {
1237    em_init, /* init */
1238    em_shutdown, /* shutdown */
1239    em_file_open, /* file_open */
1240    em_file_close, /* file_close */
1241    em_play, /* play */
1242    em_stop, /* stop */
1243    em_size_get, /* size_get */
1244    em_pos_set, /* pos_set */
1245    em_len_get, /* len_get */
1246    em_fps_num_get, /* fps_num_get */
1247    em_fps_den_get, /* fps_den_get */
1248    em_fps_get, /* fps_get */
1249    em_pos_get, /* pos_get */
1250    em_vis_set, /* vis_set */
1251    em_vis_get, /* vis_get */
1252    em_vis_supported, /* vis_supported */
1253    em_ratio_get, /* ratio_get */
1254    em_video_handled, /* video_handled */
1255    em_audio_handled, /* audio_handled */
1256    em_seekable, /* seekable */
1257    em_frame_done, /* frame_done */
1258    em_format_get, /* format_get */
1259    em_video_data_size_get, /* video_data_size_get */
1260    em_yuv_rows_get, /* yuv_rows_get */
1261    em_bgra_data_get, /* bgra_data_get */
1262    em_event_feed, /* event_feed */
1263    em_event_mouse_button_feed, /* event_mouse_button_feed */
1264    em_event_mouse_move_feed, /* event_mouse_move_feed */
1265    em_video_channel_count, /* video_channel_count */
1266    em_video_channel_set, /* video_channel_set */
1267    em_video_channel_get, /* video_channel_get */
1268    em_video_channel_name_get, /* video_channel_name_get */
1269    em_video_channel_mute_set, /* video_channel_mute_set */
1270    em_video_channel_mute_get, /* video_channel_mute_get */
1271    em_audio_channel_count, /* audio_channel_count */
1272    em_audio_channel_set, /* audio_channel_set */
1273    em_audio_channel_get, /* audio_channel_get */
1274    em_audio_channel_name_get, /* audio_channel_name_get */
1275    em_audio_channel_mute_set, /* audio_channel_mute_set */
1276    em_audio_channel_mute_get, /* audio_channel_mute_get */
1277    em_audio_channel_volume_set, /* audio_channel_volume_set */
1278    em_audio_channel_volume_get, /* audio_channel_volume_get */
1279    em_spu_channel_count, /* spu_channel_count */
1280    em_spu_channel_set, /* spu_channel_set */
1281    em_spu_channel_get, /* spu_channel_get */
1282    em_spu_channel_name_get, /* spu_channel_name_get */
1283    em_spu_channel_mute_set, /* spu_channel_mute_set */
1284    em_spu_channel_mute_get, /* spu_channel_mute_get */
1285    em_chapter_count, /* chapter_count */
1286    em_chapter_set, /* chapter_set */
1287    em_chapter_get, /* chapter_get */
1288    em_chapter_name_get, /* chapter_name_get */
1289    em_speed_set, /* speed_set */
1290    em_speed_get, /* speed_get */
1291    em_eject, /* eject */
1292    em_meta_get, /* meta_get */
1293    NULL /* handle */
1294 };
1295
1296 static Eina_Bool
1297 module_open(Evas_Object *obj, const Emotion_Video_Module **module, void **video, Emotion_Module_Options *opt)
1298 {
1299    if (!module) {
1300         return EINA_FALSE;
1301    }
1302
1303    if (_emotion_generic_log_domain < 0)
1304      {
1305         eina_threads_init();
1306         eina_log_threads_enable();
1307         _emotion_generic_log_domain = eina_log_domain_register
1308           ("emotion-generic", EINA_COLOR_LIGHTCYAN);
1309         if (_emotion_generic_log_domain < 0)
1310           {
1311              EINA_LOG_CRIT("Could not register log domain 'emotion-generic'");
1312              return EINA_FALSE;
1313           }
1314      }
1315
1316
1317    if (!em_module.init(obj, video, opt))        {
1318         return EINA_FALSE;
1319    }
1320
1321    *module = &em_module;
1322
1323    return EINA_TRUE;
1324 }
1325
1326 static void module_close(Emotion_Video_Module *module __UNUSED__, void *video)
1327 {
1328         em_module.shutdown(video);
1329 }
1330
1331
1332 Eina_Bool
1333 generic_module_init(void)
1334 {
1335    if (!pfx)
1336      {
1337         pfx = eina_prefix_new(NULL, emotion_object_add,
1338                               "EMOTION", "emotion", NULL,
1339                               PACKAGE_BIN_DIR,
1340                               PACKAGE_LIB_DIR,
1341                               PACKAGE_DATA_DIR,
1342                               "");
1343         if (!pfx) return EINA_FALSE;
1344      }
1345    return _emotion_module_register("generic", module_open, module_close);
1346 }
1347
1348 static void
1349 generic_module_shutdown(void)
1350 {
1351    if (pfx)
1352      {
1353         eina_prefix_free(pfx);
1354         pfx = NULL;
1355      }
1356    _emotion_module_unregister("generic");
1357 }
1358
1359 #ifndef EMOTION_STATIC_BUILD_GENERIC
1360
1361 EINA_MODULE_INIT(generic_module_init);
1362 EINA_MODULE_SHUTDOWN(generic_module_shutdown);
1363
1364 #endif
1365