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 _video_channels_free(Emotion_Generic_Video *ev)
 424 {
 425    int i;
 426    for (i = 0; i < ev->video_channels_count; i++)
 427      eina_stringshare_del(ev->video_channels[i].name);
 428    free(ev->video_channels);
 429    ev->video_channels_count = 0;
 430 }
 431
 432 static void
 433 _spu_channels_free(Emotion_Generic_Video *ev)
 434 {
 435    int i;
 436    for (i = 0; i < ev->spu_channels_count; i++)
 437      eina_stringshare_del(ev->spu_channels[i].name);
 438    free(ev->spu_channels);
 439    ev->spu_channels_count = 0;
 440 }
 441
 442 static void
 443 _player_tracks_info(Emotion_Generic_Video *ev, Emotion_Generic_Channel **channels, int *count, int *current)
 444 {
 445    Emotion_Generic_Channel *pchannels;
 446    int i;
 447
 448    _player_int_read(ev, current);
 449    _player_int_read(ev, count);
 450
 451    INF("number of tracks: %d (current = %d):", *count, *current);
 452    pchannels = calloc(*count, sizeof(Emotion_Generic_Channel));
 453    for (i = 0; i < *count; i++)
 454      {
 455         int tid, len;
 456         char buf[PATH_MAX];
 457         _player_int_read(ev, &tid);
 458         _player_str_read(ev, buf, &len);
 459         pchannels[i].id = tid;
 460         pchannels[i].name = eina_stringshare_add_length(buf, len);
 461         INF("\tchannel %d: %s", tid, buf);
 462      }
 463
 464    *channels = pchannels;
 465 }
 466
 467 static void
 468 _player_audio_tracks_info(Emotion_Generic_Video *ev)
 469 {
 470    INF("Receiving audio channels:");
 471    if (ev->audio_channels_count)
 472      _audio_channels_free(ev);
 473
 474    _player_tracks_info(ev, &ev->audio_channels, &ev->audio_channels_count,
 475                        &ev->audio_channel_current);
 476 }
 477
 478 static void
 479 _player_video_tracks_info(Emotion_Generic_Video *ev)
 480 {
 481    INF("Receiving video channels:");
 482    if (ev->video_channels_count)
 483      _video_channels_free(ev);
 484
 485    _player_tracks_info(ev, &ev->video_channels, &ev->video_channels_count,
 486                        &ev->video_channel_current);
 487 }
 488
 489 static void
 490 _player_spu_tracks_info(Emotion_Generic_Video *ev)
 491 {
 492    INF("Receiving spu channels:");
 493    if (ev->spu_channels_count)
 494      _spu_channels_free(ev);
 495
 496    _player_tracks_info(ev, &ev->spu_channels, &ev->spu_channels_count,
 497                        &ev->spu_channel_current);
 498 }
 499
 500 static void
 501 _player_file_closed(Emotion_Generic_Video *ev)
 502 {
 503    INF("Closed previous file.");
 504    sem_destroy(&ev->shared->lock);
 505
 506    ev->closing = EINA_FALSE;
 507
 508    if (ev->opening)
 509      _file_open(ev);
 510 }
 511
 512 static void
 513 _player_open_done(Emotion_Generic_Video *ev)
 514 {
 515    int success;
 516
 517    _player_int_read(ev, &success);
 518    shm_unlink(ev->shmname);
 519
 520    if (ev->file_changed)
 521      {
 522         _file_open(ev);
 523         ev->file_changed = EINA_FALSE;
 524         return;
 525      }
 526
 527    ev->opening = EINA_FALSE;
 528    if (!success)
 529      {
 530         ERR("Could not open file.");
 531         return;
 532      }
 533
 534    _emotion_open_done(ev->obj);
 535
 536    if (ev->play)
 537      {
 538         _player_send_cmd(ev, EM_CMD_PLAY);
 539         _player_send_float(ev, ev->pos);
 540      }
 541
 542    INF("Open done");
 543 }
 544
 545 static void
 546 _player_read_cmd(Emotion_Generic_Video *ev)
 547 {
 548    int type;
 549
 550    if (!_player_int_read(ev, &type))
 551      {
 552         ERR("could not read command\n");
 553         return;
 554      }
 555
 556    switch (type) {
 557       case EM_RESULT_INIT:
 558          _player_ready(ev);
 559          break;
 560       case EM_RESULT_FRAME_NEW:
 561          _player_new_frame(ev);
 562          break;
 563       case EM_RESULT_FILE_SET:
 564          _player_file_set_done(ev);
 565          break;
 566       case EM_RESULT_FILE_SET_DONE:
 567          _player_open_done(ev);
 568          break;
 569       case EM_RESULT_FILE_CLOSE:
 570          _player_file_closed(ev);
 571          break;
 572       case EM_RESULT_PLAYBACK_STOPPED:
 573          _emotion_playback_finished(ev->obj);
 574          break;
 575       case EM_RESULT_FRAME_SIZE:
 576          _player_frame_resize(ev);
 577          break;
 578       case EM_RESULT_LENGTH_CHANGED:
 579          _player_length_changed(ev);
 580          break;
 581       case EM_RESULT_POSITION_CHANGED:
 582          _player_position_changed(ev);
 583          break;
 584       case EM_RESULT_SEEKABLE_CHANGED:
 585          _player_seekable_changed(ev);
 586          break;
 587       case EM_RESULT_AUDIO_TRACK_INFO:
 588          _player_audio_tracks_info(ev);
 589          break;
 590       case EM_RESULT_VIDEO_TRACK_INFO:
 591          _player_video_tracks_info(ev);
 592          break;
 593       case EM_RESULT_SPU_TRACK_INFO:
 594          _player_spu_tracks_info(ev);
 595          break;
 596       default:
 597          WRN("received wrong command: %d", type);
 598    };
 599 }
 600
 601 static Eina_Bool
 602 _player_cmd_handler_cb(void *data, Ecore_Fd_Handler *fd_handler)
 603 {
 604    Emotion_Generic_Video *ev = data;
 605
 606    if (ecore_main_fd_handler_active_get(fd_handler, ECORE_FD_ERROR))
 607      {
 608         ERR("an error occurred on fd_read %d.", ev->fd_read);
 609         return ECORE_CALLBACK_CANCEL;
 610      }
 611
 612    _player_read_cmd(ev);
 613
 614    return ECORE_CALLBACK_RENEW;
 615 }
 616
 617 static Eina_Bool
 618 _player_data_cb(void *data, int type __UNUSED__, void *event)
 619 {
 620    Ecore_Exe_Event_Data *ev = event;
 621    Emotion_Generic_Video *evideo = data;
 622    int i;
 623
 624    if (ev->exe != evideo->player.exe)
 625      {
 626         ERR("slave != ev->exe");
 627         return ECORE_CALLBACK_DONE;
 628      }
 629
 630    if (ev->size < 4)
 631      {
 632         ERR("invalid command: missing bytes.");
 633         return ECORE_CALLBACK_DONE;
 634      }
 635
 636    for (i = 0; ev->lines[i].line; i++)
 637      INF("received input from player: \"%s\"", ev->lines[i].line);
 638
 639    return ECORE_CALLBACK_DONE;
 640 }
 641
 642 static Eina_Bool
 643 _player_add_cb(void *data, int type __UNUSED__, void *event)
 644 {
 645    Ecore_Exe_Event_Add *event_add = event;
 646    Ecore_Exe *player = event_add->exe;
 647    Emotion_Generic_Video *ev = data;
 648
 649    if (ev->player.exe != player)
 650      {
 651         ERR("ev->player != player.");
 652         return ECORE_CALLBACK_DONE;
 653      }
 654
 655    _player_send_cmd(ev, EM_CMD_INIT);
 656    _player_send_str(ev, ev->shmname, EINA_TRUE);
 657
 658    return ECORE_CALLBACK_DONE;
 659 }
 660
 661 static Eina_Bool
 662 _player_del_cb(void *data, int type __UNUSED__, void *event __UNUSED__)
 663 {
 664    Emotion_Generic_Video *ev = data;
 665    ERR("player died.");
 666
 667    ev->player.exe = NULL;
 668    ev->ready = EINA_FALSE;
 669    ecore_main_fd_handler_del(ev->fd_handler);
 670    close(ev->fd_read);
 671    close(ev->fd_write);
 672    ev->fd_read = -1;
 673    ev->fd_write = -1;
 674    _emotion_decode_stop(ev->obj);
 675
 676    return ECORE_CALLBACK_DONE;
 677 }
 678
 679 static Eina_Bool
 680 _player_exec(Emotion_Generic_Video *ev)
 681 {
 682    int pipe_out[2];
 683    int pipe_in[2];
 684    char buf[PATH_MAX];
 685
 686    if (pipe(pipe_out) == -1)
 687      {
 688         ERR("could not create pipe for communication emotion -> player: %s", strerror(errno));
 689         return EINA_FALSE;
 690      }
 691
 692    if (pipe(pipe_in) == -1)
 693      {
 694         ERR("could not create pipe for communication player -> emotion: %s", strerror(errno));
 695         close(pipe_out[0]);
 696         close(pipe_out[1]);
 697         return EINA_FALSE;
 698      }
 699
 700    snprintf(buf, sizeof(buf), "%s %d %d\n", ev->cmdline, pipe_out[0], pipe_in[1]);
 701
 702    ev->player.exe = ecore_exe_pipe_run(
 703       buf,
 704       ECORE_EXE_PIPE_READ | ECORE_EXE_PIPE_WRITE |
 705       ECORE_EXE_PIPE_READ_LINE_BUFFERED | ECORE_EXE_NOT_LEADER,
 706       ev);
 707
 708    INF("created pipe emotion -> player: %d -> %d\n", pipe_out[1], pipe_out[0]);
 709    INF("created pipe player -> emotion: %d -> %d\n", pipe_in[1], pipe_in[0]);
 710
 711    close(pipe_in[1]);
 712    close(pipe_out[0]);
 713
 714    if (!ev->player.exe)
 715      {
 716         close(pipe_in[0]);
 717         close(pipe_out[1]);
 718         return EINA_FALSE;
 719      }
 720
 721    ev->fd_read = pipe_in[0];
 722    ev->fd_write = pipe_out[1];
 723
 724    ev->fd_handler = ecore_main_fd_handler_add(
 725       ev->fd_read, ECORE_FD_READ | ECORE_FD_ERROR, _player_cmd_handler_cb, ev,
 726       NULL, NULL);
 727
 728    return EINA_TRUE;
 729 }
 730
 731 static Eina_Bool
 732 _fork_and_exec(Evas_Object *obj, Emotion_Generic_Video *ev)
 733 {
 734    char shmname[256];
 735    struct timeval tv;
 736
 737    gettimeofday(&tv, NULL);
 738    snprintf(shmname, sizeof(shmname), "/em-generic-shm_%d_%d",
 739             (int)tv.tv_sec, (int)tv.tv_usec);
 740
 741    ev->shmname = eina_stringshare_add(shmname);
 742
 743    ev->player_add = ecore_event_handler_add(
 744       ECORE_EXE_EVENT_ADD, _player_add_cb, ev);
 745    ev->player_del = ecore_event_handler_add(
 746       ECORE_EXE_EVENT_DEL, _player_del_cb, ev);
 747    ev->player_data = ecore_event_handler_add(
 748       ECORE_EXE_EVENT_DATA, _player_data_cb, ev);
 749
 750
 751    if (!_player_exec(ev))
 752      {
 753         ERR("could not start player.");
 754         return EINA_FALSE;
 755      }
 756
 757    ev->initializing = EINA_TRUE;
 758
 759    return EINA_TRUE;
 760 }
 761
 762 static unsigned char
 763 em_init(Evas_Object *obj, void **emotion_video, Emotion_Module_Options *opt)
 764 {
 765    Emotion_Generic_Video *ev;
 766    const char *player;
 767
 768    if (!emotion_video) return 0;
 769    player = _get_player(opt ? opt->player : NULL);
 770    if (!player) return 0;
 771
 772    ev = (Emotion_Generic_Video *)calloc(1, sizeof(*ev));
 773    if (!ev) return 0;
 774
 775    ev->fd_read = -1;
 776    ev->fd_write = -1;
 777    ev->speed = 1.0;
 778    ev->volume = 0.5;
 779    ev->audio_mute = EINA_FALSE;
 780
 781    ev->obj = obj;
 782    ev->cmdline = eina_stringshare_add(player);
 783    *emotion_video = ev;
 784
 785    return _fork_and_exec(obj, ev);
 786 }
 787
 788 static int
 789 em_shutdown(void *data)
 790 {
 791    Emotion_Generic_Video *ev = data;
 792
 793    if (!ev) return 0;
 794
 795    if (ev->player.exe)
 796      {
 797         ecore_exe_terminate(ev->player.exe);
 798         ecore_exe_free(ev->player.exe);
 799         ev->player.exe = NULL;
 800      }
 801
 802    if (ev->shared)
 803      munmap(ev->shared, ev->shared->size);
 804
 805    if (ev->fd_read >= 0)
 806      close(ev->fd_read);
 807    if (ev->fd_write >= 0)
 808      close(ev->fd_write);
 809    if (ev->fd_handler)
 810      ecore_main_fd_handler_del(ev->fd_handler);
 811
 812    _audio_channels_free(ev);
 813    _video_channels_free(ev);
 814    _spu_channels_free(ev);
 815
 816    eina_stringshare_del(ev->cmdline);
 817    eina_stringshare_del(ev->shmname);
 818
 819    ecore_event_handler_del(ev->player_add);
 820    ecore_event_handler_del(ev->player_data);
 821    ecore_event_handler_del(ev->player_del);
 822
 823    return 1;
 824 }
 825
 826 static unsigned char
 827 em_file_open(const char *file, Evas_Object *obj __UNUSED__, void *data)
 828 {
 829    Emotion_Generic_Video *ev = data;
 830    INF("file set: %s", file);
 831    if (!ev) return 0;
 832
 833    eina_stringshare_replace(&ev->filename, file);
 834
 835    ev->pos = 0;
 836    ev->w = 0;
 837    ev->h = 0;
 838    ev->ratio = 1;
 839    ev->speed = 1.0;
 840    ev->len = 0;
 841
 842    if (ev->ready && ev->opening)
 843      {
 844         INF("file changed while opening.");
 845         ev->file_changed = EINA_TRUE;
 846         return 1;
 847      }
 848
 849    ev->opening = EINA_TRUE;
 850
 851    if (!ev->closing)
 852      _file_open(ev);
 853
 854    return 1;
 855 }
 856
 857 static void
 858 em_file_close(void *data)
 859 {
 860    Emotion_Generic_Video *ev = data;
 861
 862    if (!ev || !ev->filename) return;
 863
 864    INF("file close: %s", ev->filename);
 865
 866    eina_stringshare_replace(&ev->filename, NULL);
 867
 868    if (ev->opening)
 869      return;
 870
 871    _player_send_cmd(ev, EM_CMD_FILE_CLOSE);
 872    ev->closing = EINA_TRUE;
 873 }
 874
 875 static Emotion_Format
 876 em_format_get(void *ef __UNUSED__)
 877 {
 878    return EMOTION_FORMAT_BGRA;
 879 }
 880
 881 static void
 882 em_video_data_size_get(void *data, int *w, int *h)
 883 {
 884    Emotion_Generic_Video *ev = data;
 885
 886    if (!ev) return;
 887    if (w) *w = ev->w;
 888    if (h) *h = ev->h;
 889 }
 890
 891 static void
 892 em_play(void *data, double pos)
 893 {
 894    Emotion_Generic_Video *ev = data;
 895
 896    if (!ev)
 897      return;
 898
 899    ev->play = EINA_TRUE;
 900    INF("play: %0.3f", pos);
 901
 902    if (ev->initializing || ev->opening)
 903      return;
 904
 905    if (ev->ready)
 906      {
 907         _player_send_cmd(ev, EM_CMD_PLAY);
 908         _player_send_float(ev, ev->pos);
 909         return;
 910      }
 911
 912    if (!_player_exec(ev))
 913      ERR("could not start player.");
 914 }
 915
 916 static void
 917 em_stop(void *data)
 918 {
 919    Emotion_Generic_Video *ev = data;
 920
 921    if (!ev)
 922      return;
 923
 924    ev->play = EINA_FALSE;
 925
 926    if (!ev->ready)
 927      return;
 928
 929    _player_send_cmd(ev, EM_CMD_STOP);
 930    _emotion_decode_stop(ev->obj);
 931 }
 932
 933 static void
 934 em_size_get(void *data, int *w, int *h)
 935 {
 936    Emotion_Generic_Video *ev = data;
 937    if (w) *w = ev->w;
 938    if (h) *h = ev->h;
 939 }
 940
 941 static void
 942 em_pos_set(void *data, double pos)
 943 {
 944    Emotion_Generic_Video *ev = data;
 945    float position = pos;
 946    _player_send_cmd(ev, EM_CMD_POSITION_SET);
 947    _player_send_float(ev, position);
 948    _emotion_seek_done(ev->obj);
 949 }
 950
 951 static double
 952 em_len_get(void *data)
 953 {
 954    Emotion_Generic_Video *ev = data;
 955    return ev->len;
 956 }
 957
 958 static int
 959 em_fps_num_get(void *data)
 960 {
 961    Emotion_Generic_Video *ev = data;
 962    return (int)(ev->fps * 1000.0);
 963 }
 964
 965 static int
 966 em_fps_den_get(void *ef __UNUSED__)
 967 {
 968    return 1000;
 969 }
 970
 971 static double
 972 em_fps_get(void *data)
 973 {
 974    Emotion_Generic_Video *ev = data;
 975    return ev->fps;
 976 }
 977
 978 static double
 979 em_pos_get(void *data)
 980 {
 981    Emotion_Generic_Video *ev = data;
 982    return ev->pos;
 983 }
 984
 985 static void
 986 em_vis_set(void *ef __UNUSED__, Emotion_Vis vis __UNUSED__)
 987 {
 988 }
 989
 990 static Emotion_Vis
 991 em_vis_get(void *data)
 992 {
 993    Emotion_Generic_Video *ev = data;
 994    return ev->vis;
 995 }
 996
 997 static Eina_Bool
 998 em_vis_supported(void *ef __UNUSED__, Emotion_Vis vis __UNUSED__)
 999 {
1000    return EINA_FALSE;
1001 }
1002
1003 static double
1004 em_ratio_get(void *data)
1005 {
1006    Emotion_Generic_Video *ev = data;
1007    return ev->ratio;
1008 }
1009
1010 static int em_video_handled(void *ef __UNUSED__)
1011 {
1012    fprintf(stderr, "video handled!\n");
1013    return 1;
1014 }
1015
1016 static int em_audio_handled(void *ef __UNUSED__)
1017 {
1018    fprintf(stderr, "audio handled!\n");
1019    return 1;
1020 }
1021
1022 static int em_seekable(void *data)
1023 {
1024    Emotion_Generic_Video *ev = data;
1025    return ev->seekable;
1026 }
1027
1028 static void em_frame_done(void *ef __UNUSED__)
1029 {
1030 }
1031
1032 static int
1033 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__)
1034 {
1035    return 0;
1036 }
1037
1038 static int
1039 em_bgra_data_get(void *data, unsigned char **bgra_data)
1040 {
1041    Emotion_Generic_Video *ev = data;
1042
1043    if (!ev || ev->opening || ev->closing)
1044      return 0;
1045
1046    // lock frame here
1047    sem_wait(&ev->shared->lock);
1048
1049    // send current frame to emotion
1050    if (ev->shared->frame.emotion != ev->shared->frame.last)
1051      {
1052         ev->shared->frame.next = ev->shared->frame.emotion;
1053         ev->shared->frame.emotion = ev->shared->frame.last;
1054      }
1055    *bgra_data = ev->frame.frames[ev->shared->frame.emotion];
1056
1057    // unlock frame here
1058    sem_post(&ev->shared->lock);
1059    ev->drop = 0;
1060
1061    return 1;
1062 }
1063
1064 static void
1065 em_event_feed(void *ef __UNUSED__, int event __UNUSED__)
1066 {
1067 }
1068
1069 static void
1070 em_event_mouse_button_feed(void *ef __UNUSED__, int button __UNUSED__, int x __UNUSED__, int y __UNUSED__)
1071 {
1072 }
1073
1074 static void
1075 em_event_mouse_move_feed(void *ef __UNUSED__, int x __UNUSED__, int y __UNUSED__)
1076 {
1077 }
1078
1079 static int
1080 em_video_channel_count(void *data)
1081 {
1082    Emotion_Generic_Video *ev = data;
1083    return ev->video_channels_count;
1084 }
1085
1086 static void
1087 em_video_channel_set(void *data, int channel)
1088 {
1089    Emotion_Generic_Video *ev = data;
1090
1091    if (channel < 0 || channel >= ev->video_channels_count)
1092      {
1093         WRN("video channel out of range.");
1094         return;
1095      }
1096
1097    _player_send_cmd(ev, EM_CMD_VIDEO_TRACK_SET);
1098    _player_send_int(ev, ev->video_channels[channel].id);
1099    ev->video_channel_current = channel;
1100 }
1101
1102 static int
1103 em_video_channel_get(void *data)
1104 {
1105    Emotion_Generic_Video *ev = data;
1106    return ev->video_channel_current;
1107 }
1108
1109 static const char *
1110 em_video_channel_name_get(void *data, int channel)
1111 {
1112    Emotion_Generic_Video *ev = data;
1113
1114    if (channel < 0 || channel >= ev->video_channels_count)
1115      {
1116         WRN("video channel out of range.");
1117         return NULL;
1118      }
1119
1120    return ev->video_channels[channel].name;
1121 }
1122
1123 static void
1124 em_video_channel_mute_set(void *data, int mute)
1125 {
1126    Emotion_Generic_Video *ev = data;
1127    _player_send_cmd(ev, EM_CMD_VIDEO_MUTE_SET);
1128    _player_send_int(ev, mute);
1129    ev->video_mute = !!mute;
1130 }
1131
1132 static int
1133 em_video_channel_mute_get(void *data)
1134 {
1135    Emotion_Generic_Video *ev = data;
1136    return ev->video_mute;
1137 }
1138
1139 static int
1140 em_audio_channel_count(void *data)
1141 {
1142    Emotion_Generic_Video *ev = data;
1143    return ev->audio_channels_count;
1144 }
1145
1146 static void
1147 em_audio_channel_set(void *data, int channel)
1148 {
1149    Emotion_Generic_Video *ev = data;
1150
1151    if (channel < 0 || channel >= ev->audio_channels_count)
1152      {
1153         WRN("audio channel out of range.");
1154         return;
1155      }
1156
1157    _player_send_cmd(ev, EM_CMD_AUDIO_TRACK_SET);
1158    _player_send_int(ev, ev->audio_channels[channel].id);
1159    ev->audio_channel_current = channel;
1160 }
1161
1162 static int
1163 em_audio_channel_get(void *data)
1164 {
1165    Emotion_Generic_Video *ev = data;
1166    return ev->audio_channel_current;
1167 }
1168
1169 static const char *
1170 em_audio_channel_name_get(void *data, int channel)
1171 {
1172    Emotion_Generic_Video *ev = data;
1173
1174    if (channel < 0 || channel >= ev->audio_channels_count)
1175      {
1176         WRN("audio channel out of range.");
1177         return NULL;
1178      }
1179
1180    return ev->audio_channels[channel].name;
1181 }
1182
1183 static void
1184 em_audio_channel_mute_set(void *data, int mute)
1185 {
1186    Emotion_Generic_Video *ev = data;
1187    _player_send_cmd(ev, EM_CMD_AUDIO_MUTE_SET);
1188    _player_send_int(ev, mute);
1189    ev->audio_mute = !!mute;
1190 }
1191
1192 static int
1193 em_audio_channel_mute_get(void *data)
1194 {
1195    Emotion_Generic_Video *ev = data;
1196    return ev->audio_mute;
1197 }
1198
1199 static void
1200 em_audio_channel_volume_set(void *data, double vol)
1201 {
1202    Emotion_Generic_Video *ev = data;
1203    float fvol;
1204
1205    if (vol > 1.0) vol = 1.0;
1206    if (vol < 0.0) vol = 0.0;
1207
1208    fvol = vol;
1209    _player_send_cmd(ev, EM_CMD_VOLUME_SET);
1210    _player_send_float(ev, fvol);
1211
1212    ev->volume = vol;
1213 }
1214
1215 static double
1216 em_audio_channel_volume_get(void *data)
1217 {
1218    Emotion_Generic_Video *ev = data;
1219    return ev->volume;
1220 }
1221
1222 static int
1223 em_spu_channel_count(void *data)
1224 {
1225    Emotion_Generic_Video *ev = data;
1226    return ev->spu_channels_count;
1227 }
1228
1229 static void
1230 em_spu_channel_set(void *data, int channel)
1231 {
1232    Emotion_Generic_Video *ev = data;
1233
1234    if (channel < 0 || channel >= ev->spu_channels_count)
1235      {
1236         WRN("spu channel out of range.");
1237         return;
1238      }
1239
1240    _player_send_cmd(ev, EM_CMD_SPU_TRACK_SET);
1241    _player_send_int(ev, ev->spu_channels[channel].id);
1242    ev->spu_channel_current = channel;
1243 }
1244
1245 static int
1246 em_spu_channel_get(void *data)
1247 {
1248    Emotion_Generic_Video *ev = data;
1249    return ev->spu_channel_current;
1250 }
1251
1252 static const char *
1253 em_spu_channel_name_get(void *data, int channel)
1254 {
1255    Emotion_Generic_Video *ev = data;
1256
1257    if (channel < 0 || channel >= ev->spu_channels_count)
1258      {
1259         WRN("spu channel out of range.");
1260         return NULL;
1261      }
1262
1263    return ev->spu_channels[channel].name;
1264 }
1265
1266 static void
1267 em_spu_channel_mute_set(void *data, int mute)
1268 {
1269    Emotion_Generic_Video *ev = data;
1270    _player_send_cmd(ev, EM_CMD_SPU_MUTE_SET);
1271    _player_send_int(ev, mute);
1272    ev->spu_mute = !!mute;
1273 }
1274
1275 static int
1276 em_spu_channel_mute_get(void *data)
1277 {
1278    Emotion_Generic_Video *ev = data;
1279    return ev->spu_mute;
1280 }
1281
1282 static int
1283 em_chapter_count(void *ef __UNUSED__)
1284 {
1285    int num = 0;
1286    return num;
1287 }
1288
1289 static void
1290 em_chapter_set(void *ef __UNUSED__, int chapter __UNUSED__)
1291 {
1292 }
1293
1294 static int
1295 em_chapter_get(void *ef __UNUSED__)
1296 {
1297    int num = 0;
1298    return num;
1299 }
1300
1301 static const char *
1302 em_chapter_name_get(void *ef __UNUSED__, int chapter __UNUSED__)
1303 {
1304    return NULL;
1305 }
1306
1307 static void
1308 em_speed_set(void *data, double speed)
1309 {
1310    Emotion_Generic_Video *ev = data;
1311    float rate = speed;
1312
1313    _player_send_cmd(ev, EM_CMD_SPEED_SET);
1314    _player_send_float(ev, rate);
1315
1316    ev->speed = rate;
1317 }
1318
1319 static double
1320 em_speed_get(void *data)
1321 {
1322    Emotion_Generic_Video *ev = data;
1323    return (double)ev->speed;
1324 }
1325
1326 static int
1327 em_eject(void *ef __UNUSED__)
1328 {
1329    return 1;
1330 }
1331
1332 static const char *
1333 em_meta_get(void *ef __UNUSED__, int meta __UNUSED__)
1334 {
1335    char * meta_data = NULL;
1336    return meta_data;
1337 }
1338
1339 static Emotion_Video_Module em_module =
1340 {
1341    em_init, /* init */
1342    em_shutdown, /* shutdown */
1343    em_file_open, /* file_open */
1344    em_file_close, /* file_close */
1345    em_play, /* play */
1346    em_stop, /* stop */
1347    em_size_get, /* size_get */
1348    em_pos_set, /* pos_set */
1349    em_len_get, /* len_get */
1350    em_fps_num_get, /* fps_num_get */
1351    em_fps_den_get, /* fps_den_get */
1352    em_fps_get, /* fps_get */
1353    em_pos_get, /* pos_get */
1354    em_vis_set, /* vis_set */
1355    em_vis_get, /* vis_get */
1356    em_vis_supported, /* vis_supported */
1357    em_ratio_get, /* ratio_get */
1358    em_video_handled, /* video_handled */
1359    em_audio_handled, /* audio_handled */
1360    em_seekable, /* seekable */
1361    em_frame_done, /* frame_done */
1362    em_format_get, /* format_get */
1363    em_video_data_size_get, /* video_data_size_get */
1364    em_yuv_rows_get, /* yuv_rows_get */
1365    em_bgra_data_get, /* bgra_data_get */
1366    em_event_feed, /* event_feed */
1367    em_event_mouse_button_feed, /* event_mouse_button_feed */
1368    em_event_mouse_move_feed, /* event_mouse_move_feed */
1369    em_video_channel_count, /* video_channel_count */
1370    em_video_channel_set, /* video_channel_set */
1371    em_video_channel_get, /* video_channel_get */
1372    em_video_channel_name_get, /* video_channel_name_get */
1373    em_video_channel_mute_set, /* video_channel_mute_set */
1374    em_video_channel_mute_get, /* video_channel_mute_get */
1375    em_audio_channel_count, /* audio_channel_count */
1376    em_audio_channel_set, /* audio_channel_set */
1377    em_audio_channel_get, /* audio_channel_get */
1378    em_audio_channel_name_get, /* audio_channel_name_get */
1379    em_audio_channel_mute_set, /* audio_channel_mute_set */
1380    em_audio_channel_mute_get, /* audio_channel_mute_get */
1381    em_audio_channel_volume_set, /* audio_channel_volume_set */
1382    em_audio_channel_volume_get, /* audio_channel_volume_get */
1383    em_spu_channel_count, /* spu_channel_count */
1384    em_spu_channel_set, /* spu_channel_set */
1385    em_spu_channel_get, /* spu_channel_get */
1386    em_spu_channel_name_get, /* spu_channel_name_get */
1387    em_spu_channel_mute_set, /* spu_channel_mute_set */
1388    em_spu_channel_mute_get, /* spu_channel_mute_get */
1389    em_chapter_count, /* chapter_count */
1390    em_chapter_set, /* chapter_set */
1391    em_chapter_get, /* chapter_get */
1392    em_chapter_name_get, /* chapter_name_get */
1393    em_speed_set, /* speed_set */
1394    em_speed_get, /* speed_get */
1395    em_eject, /* eject */
1396    em_meta_get, /* meta_get */
1397    NULL /* handle */
1398 };
1399
1400 static Eina_Bool
1401 module_open(Evas_Object *obj, const Emotion_Video_Module **module, void **video, Emotion_Module_Options *opt)
1402 {
1403    if (!module) {
1404         return EINA_FALSE;
1405    }
1406
1407    if (_emotion_generic_log_domain < 0)
1408      {
1409         eina_threads_init();
1410         eina_log_threads_enable();
1411         _emotion_generic_log_domain = eina_log_domain_register
1412           ("emotion-generic", EINA_COLOR_LIGHTCYAN);
1413         if (_emotion_generic_log_domain < 0)
1414           {
1415              EINA_LOG_CRIT("Could not register log domain 'emotion-generic'");
1416              return EINA_FALSE;
1417           }
1418      }
1419
1420
1421    if (!em_module.init(obj, video, opt))        {
1422         return EINA_FALSE;
1423    }
1424
1425    *module = &em_module;
1426
1427    return EINA_TRUE;
1428 }
1429
1430 static void module_close(Emotion_Video_Module *module __UNUSED__, void *video)
1431 {
1432         em_module.shutdown(video);
1433 }
1434
1435
1436 Eina_Bool
1437 generic_module_init(void)
1438 {
1439    if (!pfx)
1440      {
1441         pfx = eina_prefix_new(NULL, emotion_object_add,
1442                               "EMOTION", "emotion", NULL,
1443                               PACKAGE_BIN_DIR,
1444                               PACKAGE_LIB_DIR,
1445                               PACKAGE_DATA_DIR,
1446                               "");
1447         if (!pfx) return EINA_FALSE;
1448      }
1449    return _emotion_module_register("generic", module_open, module_close);
1450 }
1451
1452 static void
1453 generic_module_shutdown(void)
1454 {
1455    if (pfx)
1456      {
1457         eina_prefix_free(pfx);
1458         pfx = NULL;
1459      }
1460    _emotion_module_unregister("generic");
1461 }
1462
1463 #ifndef EMOTION_STATIC_BUILD_GENERIC
1464
1465 EINA_MODULE_INIT(generic_module_init);
1466 EINA_MODULE_SHUTDOWN(generic_module_shutdown);
1467
1468 #endif
1469