libhb/work.c

   1 /* $Id: work.c,v 1.43 2005/03/17 16:38:49 titer Exp $
   2
   3    This file is part of the HandBrake source code.
   4    Homepage: <http://handbrake.m0k.org/>.
   5    It may be used under the terms of the GNU General Public License. */
   6
   7 #include "hb.h"
   8 #include "a52dec/a52.h"
   9 #include "dca.h"
  10
  11 typedef struct
  12 {
  13     hb_list_t * jobs;
  14     int         cpu_count;
  15     int       * error;
  16     volatile int * die;
  17
  18 } hb_work_t;
  19
  20 static void work_func();
  21 static void do_job( hb_job_t *, int cpu_count );
  22 static void work_loop( void * );
  23
  24 /**
  25  * Allocates work object and launches work thread with work_func.
  26  * @param jobs Handle to hb_list_t.
  27  * @param cpu_count Humber of CPUs found in system.
  28  * @param die Handle to user inititated exit indicator.
  29  * @param error Handle to error indicator.
  30  */
  31 hb_thread_t * hb_work_init( hb_list_t * jobs, int cpu_count,
  32                             volatile int * die, int * error )
  33 {
  34     hb_work_t * work = calloc( sizeof( hb_work_t ), 1 );
  35
  36     work->jobs      = jobs;
  37     work->cpu_count = cpu_count;
  38     work->die       = die;
  39     work->error     = error;
  40
  41     return hb_thread_init( "work", work_func, work, HB_LOW_PRIORITY );
  42 }
  43
  44 /**
  45  * Iterates through job list and calls do_job for each job.
  46  * @param _work Handle work object.
  47  */
  48 static void work_func( void * _work )
  49 {
  50     hb_work_t  * work = _work;
  51     hb_job_t   * job;
  52
  53     hb_log( "%d job(s) to process", hb_list_count( work->jobs ) );
  54
  55     while( !*work->die && ( job = hb_list_item( work->jobs, 0 ) ) )
  56     {
  57         hb_list_rem( work->jobs, job );
  58         job->die = work->die;
  59         do_job( job, work->cpu_count );
  60     }
  61
  62     *(work->error) = HB_ERROR_NONE;
  63
  64     free( work );
  65 }
  66
  67 static hb_work_object_t * getWork( int id )
  68 {
  69     hb_work_object_t * w;
  70     for( w = hb_objects; w; w = w->next )
  71     {
  72         if( w->id == id )
  73         {
  74             return w;
  75         }
  76     }
  77     return NULL;
  78 }
  79
  80 /**
  81  * Job initialization rountine.
  82  * Initializes fifos.
  83  * Creates work objects for synchronizer, video decoder, video renderer, video decoder, audio decoder, audio encoder, reader, muxer.
  84  * Launches thread for each work object with work_loop.
  85  * Loops while monitoring status of work threads and fifos.
  86  * Exits loop when conversion is done and fifos are empty.
  87  * Closes threads and frees fifos.
  88  * @param job Handle work hb_job_t.
  89  * @param cpu_count number of CPUs found in system.
  90  */
  91 static void do_job( hb_job_t * job, int cpu_count )
  92 {
  93     hb_title_t    * title;
  94     int             i, j;
  95     hb_work_object_t * w;
  96
  97     /* FIXME: This feels really hackish, anything better? */
  98     hb_work_object_t * audio_w = NULL;
  99
 100     hb_audio_t   * audio;
 101     hb_subtitle_t * subtitle;
 102     int done;
 103
 104     title = job->title;
 105
 106     job->list_work = hb_list_init();
 107
 108     hb_log( "starting job" );
 109     hb_log( " + device %s", title->dvd );
 110     hb_log( " + title %d, chapter(s) %d to %d", title->index,
 111             job->chapter_start, job->chapter_end );
 112     if ( job->pixel_ratio == 1 )
 113     {
 114         /* Correct the geometry of the output movie when using PixelRatio */
 115         job->height=title->height-job->crop[0]-job->crop[1];
 116         job->width=title->width-job->crop[2]-job->crop[3];
 117     }
 118
 119         /* Keep width and height within these boundaries */
 120         if (job->maxHeight && (job->height > job->maxHeight) )
 121         {
 122                 job->height = job->maxHeight;
 123                 hb_fix_aspect( job, HB_KEEP_HEIGHT );
 124                 hb_log("Height out of bounds, scaling down to %i", job->maxHeight);
 125                 hb_log("New dimensions %i * %i", job->width, job->height);
 126         }
 127         if (job->maxWidth && (job->width > job->maxWidth) )
 128         {
 129                 job->width = job->maxWidth;
 130                 hb_fix_aspect( job, HB_KEEP_WIDTH );
 131                 hb_log("Width out of bounds, scaling down to %i", job->maxWidth);
 132                 hb_log("New dimensions %i * %i", job->width, job->height);
 133         }
 134
 135     hb_log( " + %dx%d -> %dx%d, crop %d/%d/%d/%d",
 136             title->width, title->height, job->width, job->height,
 137             job->crop[0], job->crop[1], job->crop[2], job->crop[3] );
 138     hb_log( " + deinterlace %s", job->deinterlace ? "on" : "off" );
 139     hb_log( " + grayscale %s", job->grayscale ? "on" : "off" );
 140     if( job->vquality >= 0.0 && job->vquality <= 1.0 )
 141     {
 142         hb_log( " + %.3f fps, video quality %.2f", (float) job->vrate /
 143                 (float) job->vrate_base, job->vquality );
 144     }
 145     else
 146     {
 147         hb_log( " + %.3f fps, video bitrate %d kbps, pass %d",
 148                 (float) job->vrate / (float) job->vrate_base,
 149                 job->vbitrate, job->pass );
 150     }
 151         hb_log (" + PixelRatio: %d, width:%d, height: %d",job->pixel_ratio,job->width, job->height);
 152     job->fifo_mpeg2  = hb_fifo_init( 2048 );
 153     job->fifo_raw    = hb_fifo_init( 8 );
 154     job->fifo_sync   = hb_fifo_init( 8 );
 155     job->fifo_render = hb_fifo_init( 8 );
 156     job->fifo_mpeg4  = hb_fifo_init( 8 );
 157
 158     /* Synchronization */
 159     hb_list_add( job->list_work, ( w = getWork( WORK_SYNC ) ) );
 160     w->fifo_in  = NULL;
 161     w->fifo_out = NULL;
 162
 163     /* Video decoder */
 164     hb_list_add( job->list_work, ( w = getWork( WORK_DECMPEG2 ) ) );
 165     w->fifo_in  = job->fifo_mpeg2;
 166     w->fifo_out = job->fifo_raw;
 167
 168     /* Video renderer */
 169     hb_list_add( job->list_work, ( w = getWork( WORK_RENDER ) ) );
 170     w->fifo_in  = job->fifo_sync;
 171     w->fifo_out = job->fifo_render;
 172
 173     /* Video encoder */
 174     switch( job->vcodec )
 175     {
 176         case HB_VCODEC_FFMPEG:
 177             hb_log( " + encoder FFmpeg" );
 178             w = getWork( WORK_ENCAVCODEC );
 179             break;
 180         case HB_VCODEC_XVID:
 181             hb_log( " + encoder XviD" );
 182             w = getWork( WORK_ENCXVID );
 183             break;
 184         case HB_VCODEC_X264:
 185             hb_log( " + encoder x264" );
 186             w = getWork( WORK_ENCX264 );
 187             break;
 188     }
 189     w->fifo_in  = job->fifo_render;
 190     w->fifo_out = job->fifo_mpeg4;
 191     w->config   = &job->config;
 192     hb_list_add( job->list_work, w );
 193
 194     subtitle = hb_list_item( title->list_subtitle, 0 );
 195     if( subtitle )
 196     {
 197         hb_log( " + subtitle %x, %s", subtitle->id, subtitle->lang );
 198
 199         subtitle->fifo_in  = hb_fifo_init( 8 );
 200         subtitle->fifo_raw = hb_fifo_init( 8 );
 201
 202         hb_list_add( job->list_work, ( w = getWork( WORK_DECSUB ) ) );
 203         w->fifo_in  = subtitle->fifo_in;
 204         w->fifo_out = subtitle->fifo_raw;
 205     }
 206
 207     if( job->acodec & HB_ACODEC_AC3 )
 208     {
 209         hb_log( " + audio AC3 passthrough" );
 210     }
 211     else
 212     {
 213         hb_log( " + audio %d kbps, %d Hz", job->abitrate, job->arate );
 214         hb_log( " + encoder %s", ( job->acodec & HB_ACODEC_FAAC ) ?
 215                 "faac" : ( ( job->acodec & HB_ACODEC_LAME ) ? "lame" :
 216                 "vorbis" ) );
 217     }
 218
 219     for( i = 0; i < hb_list_count( title->list_audio ); i++ )
 220     {
 221         audio = hb_list_item( title->list_audio, i );
 222         hb_log( "   + %x, %s", audio->id, audio->lang );
 223
 224                 /* sense-check the current mixdown options */
 225
 226                 /* log the requested mixdown */
 227                 for (j = 0; j < hb_audio_mixdowns_count; j++) {
 228                         if (hb_audio_mixdowns[j].amixdown == job->audio_mixdowns[i]) {
 229                                 hb_log( "     + Requested mixdown: %s (%s)", hb_audio_mixdowns[j].human_readable_name, hb_audio_mixdowns[j].internal_name );
 230                                 break;
 231                         }
 232                 }
 233
 234         if (audio->codec == HB_ACODEC_AC3)
 235         {
 236
 237                         /* sense-check the AC3 mixdown */
 238
 239                         /* audioCodecSupportsMono and audioCodecSupports6Ch are the same for now,
 240                            but this may change in the future, so they are separated for flexibility */
 241                         int audioCodecSupportsMono = (job->acodec == HB_ACODEC_FAAC);
 242                         int audioCodecSupports6Ch = (job->acodec == HB_ACODEC_FAAC);
 243
 244                         /* find out what the format of our source AC3 audio is */
 245                         switch (audio->config.a52.ac3flags & A52_CHANNEL_MASK) {
 246
 247                                 /* mono sources */
 248                                 case A52_MONO:
 249                                 case A52_CHANNEL1:
 250                                 case A52_CHANNEL2:
 251                                         /* regardless of what stereo mixdown we've requested, a mono source always get mixed down
 252                                         to mono if we can, and mixed up to stereo if we can't */
 253                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 1) {
 254                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_MONO;
 255                                         } else {
 256                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_STEREO;
 257                                         }
 258                                         break;
 259
 260                                 /* stereo input */
 261                                 case A52_CHANNEL:
 262                                 case A52_STEREO:
 263                                         /* if we've requested a mono mixdown, and it is supported, then do the mix */
 264                                         /* use stereo if not supported */
 265                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 0) {
 266                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_STEREO;
 267                                         /* otherwise, preserve stereo regardless of if we requested something higher */
 268                                         } else if (job->audio_mixdowns[i] > HB_AMIXDOWN_STEREO) {
 269                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_STEREO;
 270                                         }
 271                                         break;
 272
 273                                 /* dolby (DPL1 aka Dolby Surround = 4.0 matrix-encoded) input */
 274                                 /* the A52 flags don't allow for a way to distinguish between DPL1 and DPL2 on a DVD,
 275                                    so we always assume a DPL1 source for A52_DOLBY */
 276                                 case A52_DOLBY:
 277                                         /* if we've requested a mono mixdown, and it is supported, then do the mix */
 278                                         /* preserve dolby if not supported */
 279                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 0) {
 280                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBY;
 281                                         /* otherwise, preserve dolby even if we requested something higher */
 282                                         /* a stereo mixdown will still be honoured here */
 283                                         } else if (job->audio_mixdowns[i] > HB_AMIXDOWN_DOLBY) {
 284                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBY;
 285                                         }
 286                                         break;
 287
 288                                 /* 3F/2R input */
 289                                 case A52_3F2R:
 290                                         /* if we've requested a mono mixdown, and it is supported, then do the mix */
 291                                         /* use dpl2 if not supported */
 292                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 0) {
 293                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBYPLII;
 294                                         } else {
 295                                                 /* check if we have 3F2R input and also have an LFE - i.e. we have a 5.1 source) */
 296                                                 if (audio->config.a52.ac3flags & A52_LFE) {
 297                                                         /* we have a 5.1 source */
 298                                                         /* if we requested 6ch, but our audio format doesn't support it, then mix to DPLII instead */
 299                                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_6CH && audioCodecSupports6Ch == 0) {
 300                                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBYPLII;
 301                                                         }
 302                                                 } else {
 303                                                         /* we have a 5.0 source, so we can't do 6ch conversion
 304                                                         default to DPL II instead */
 305                                                         if (job->audio_mixdowns[i] > HB_AMIXDOWN_DOLBYPLII) {
 306                                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBYPLII;
 307                                                         }
 308                                                 }
 309                                         }
 310                                         /* all other mixdowns will have been preserved here */
 311                                         break;
 312
 313                                 /* 3F/1R input */
 314                                 case A52_3F1R:
 315                                         /* if we've requested a mono mixdown, and it is supported, then do the mix */
 316                                         /* use dpl1 if not supported */
 317                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 0) {
 318                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBY;
 319                                         } else {
 320                                                 /* we have a 4.0 or 4.1 source, so we can't do DPLII or 6ch conversion
 321                                                 default to DPL I instead */
 322                                                 if (job->audio_mixdowns[i] > HB_AMIXDOWN_DOLBY) {
 323                                                         job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBY;
 324                                                 }
 325                                         }
 326                                         /* all other mixdowns will have been preserved here */
 327                                         break;
 328
 329                                 default:
 330                                         /* if we've requested a mono mixdown, and it is supported, then do the mix */
 331                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 1) {
 332                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_MONO;
 333                                         /* mix everything else down to stereo */
 334                                         } else {
 335                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_STEREO;
 336                                         }
 337
 338                 }
 339
 340         }
 341         else if (audio->codec == HB_ACODEC_DCA)
 342         {
 343
 344                         /* sense-check the DCA mixdown */
 345
 346                         /* audioCodecSupportsMono and audioCodecSupports6Ch are the same for now,
 347                            but this may change in the future, so they are separated for flexibility */
 348                         int audioCodecSupportsMono = (job->acodec == HB_ACODEC_FAAC);
 349                         int audioCodecSupports6Ch = (job->acodec == HB_ACODEC_FAAC);
 350
 351                         /* find out what the format of our source DCA audio is */
 352                         switch (audio->config.dca.dcaflags & DCA_CHANNEL_MASK) {
 353
 354                                 /* mono sources */
 355                                 case DCA_MONO:
 356                                         /* regardless of what stereo mixdown we've requested, a mono source always get mixed down
 357                                         to mono if we can, and mixed up to stereo if we can't */
 358                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 1) {
 359                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_MONO;
 360                                         } else {
 361                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_STEREO;
 362                                         }
 363                                         break;
 364
 365                                 /* stereo input */
 366                 case DCA_CHANNEL:
 367                 case DCA_STEREO:
 368                 case DCA_STEREO_SUMDIFF:
 369                 case DCA_STEREO_TOTAL:
 370                                         /* if we've requested a mono mixdown, and it is supported, then do the mix */
 371                                         /* use stereo if not supported */
 372                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 0) {
 373                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_STEREO;
 374                                         /* otherwise, preserve stereo regardless of if we requested something higher */
 375                                         } else if (job->audio_mixdowns[i] > HB_AMIXDOWN_STEREO) {
 376                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_STEREO;
 377                                         }
 378                                         break;
 379
 380                                 /* dolby (DPL1 aka Dolby Surround = 4.0 matrix-encoded) input */
 381                                 /* the A52 flags don't allow for a way to distinguish between DPL1 and DPL2 on a DVD,
 382                                    so we always assume a DPL1 source for A52_DOLBY */
 383                                 case DCA_DOLBY:
 384                                         /* if we've requested a mono mixdown, and it is supported, then do the mix */
 385                                         /* preserve dolby if not supported */
 386                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 0) {
 387                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBY;
 388                                         /* otherwise, preserve dolby even if we requested something higher */
 389                                         /* a stereo mixdown will still be honoured here */
 390                                         } else if (job->audio_mixdowns[i] > HB_AMIXDOWN_DOLBY) {
 391                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBY;
 392                                         }
 393                                         break;
 394
 395                                 /* 3F/2R input */
 396                                 case DCA_3F2R:
 397                                         /* if we've requested a mono mixdown, and it is supported, then do the mix */
 398                                         /* use dpl2 if not supported */
 399                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 0) {
 400                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBYPLII;
 401                                         } else {
 402                                                 /* check if we have 3F2R input and also have an LFE - i.e. we have a 5.1 source) */
 403                                                 if (audio->config.dca.dcaflags & DCA_LFE) {
 404                                                         /* we have a 5.1 source */
 405                                                         /* if we requested 6ch, but our audio format doesn't support it, then mix to DPLII instead */
 406                                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_6CH && audioCodecSupports6Ch == 0) {
 407                                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBYPLII;
 408                                                         }
 409                                                 } else {
 410                                                         /* we have a 5.0 source, so we can't do 6ch conversion
 411                                                         default to DPL II instead */
 412                                                         if (job->audio_mixdowns[i] > HB_AMIXDOWN_DOLBYPLII) {
 413                                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBYPLII;
 414                                                         }
 415                                                 }
 416                                         }
 417                                         /* all other mixdowns will have been preserved here */
 418                                         break;
 419
 420                                 /* 3F/1R input */
 421                                 case DCA_3F1R:
 422                                         /* if we've requested a mono mixdown, and it is supported, then do the mix */
 423                                         /* use dpl1 if not supported */
 424                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 0) {
 425                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBY;
 426                                         } else {
 427                                                 /* we have a 4.0 or 4.1 source, so we can't do DPLII or 6ch conversion
 428                                                 default to DPL I instead */
 429                                                 if (job->audio_mixdowns[i] > HB_AMIXDOWN_DOLBY) {
 430                                                         job->audio_mixdowns[i] = HB_AMIXDOWN_DOLBY;
 431                                                 }
 432                                         }
 433                                         /* all other mixdowns will have been preserved here */
 434                                         break;
 435
 436                                 default:
 437                                         /* if we've requested a mono mixdown, and it is supported, then do the mix */
 438                                         if (job->audio_mixdowns[i] == HB_AMIXDOWN_MONO && audioCodecSupportsMono == 1) {
 439                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_MONO;
 440                                         /* mix everything else down to stereo */
 441                                         } else {
 442                                                 job->audio_mixdowns[i] = HB_AMIXDOWN_STEREO;
 443                                         }
 444                         }
 445
 446         }
 447         else
 448         {
 449
 450                         /* assume a stereo input and output for non-AC3/DCA audio input (LPCM, MP2),
 451                            regardless of the mixdown passed to us */
 452             job->audio_mixdowns[i] = HB_AMIXDOWN_STEREO;
 453
 454                 }
 455
 456                 /* log the output mixdown */
 457                 for (j = 0; j < hb_audio_mixdowns_count; j++) {
 458                         if (hb_audio_mixdowns[j].amixdown == job->audio_mixdowns[i]) {
 459                                 hb_log( "     + Actual mixdown: %s (%s)", hb_audio_mixdowns[j].human_readable_name, hb_audio_mixdowns[j].internal_name );
 460                                 break;
 461                         }
 462                 }
 463
 464                 /* we now know we have a valid mixdown for the input source and the audio output format */
 465                 /* remember the mixdown for this track */
 466                 audio->amixdown = job->audio_mixdowns[i];
 467
 468         audio->config.vorbis.language = audio->lang_simple;
 469
 470                 /* set up the audio work structures */
 471         audio->fifo_in   = hb_fifo_init( 2048 );
 472         audio->fifo_raw  = hb_fifo_init( 8 );
 473         audio->fifo_sync = hb_fifo_init( 8 );
 474         audio->fifo_out  = hb_fifo_init( 8 );
 475
 476         switch( audio->codec )
 477         {
 478             case HB_ACODEC_AC3:
 479                 w = getWork( WORK_DECA52 );
 480                 break;
 481             case HB_ACODEC_DCA:
 482                 w = getWork( WORK_DECDCA );
 483                 break;
 484             case HB_ACODEC_MPGA:
 485                 w = getWork( WORK_DECAVCODEC );
 486                 break;
 487             case HB_ACODEC_LPCM:
 488                 w = getWork( WORK_DECLPCM );
 489                 break;
 490         }
 491         w->fifo_in  = audio->fifo_in;
 492         w->fifo_out = audio->fifo_raw;
 493         w->config   = &audio->config;
 494         w->amixdown = audio->amixdown;
 495
 496         /* FIXME: This feels really hackish, anything better? */
 497         audio_w = calloc( sizeof( hb_work_object_t ), 1 );
 498         audio_w = memcpy( audio_w, w, sizeof( hb_work_object_t ));
 499
 500         hb_list_add( job->list_work, audio_w );
 501
 502         switch( job->acodec )
 503         {
 504             case HB_ACODEC_FAAC:
 505                 w = getWork( WORK_ENCFAAC );
 506                 break;
 507             case HB_ACODEC_LAME:
 508                 w = getWork( WORK_ENCLAME );
 509                 break;
 510             case HB_ACODEC_VORBIS:
 511                 w = getWork( WORK_ENCVORBIS );
 512                 break;
 513         }
 514
 515         if( job->acodec != HB_ACODEC_AC3 )
 516         {
 517             w->fifo_in  = audio->fifo_sync;
 518             w->fifo_out = audio->fifo_out;
 519             w->config   = &audio->config;
 520             w->amixdown = audio->amixdown;
 521
 522             /* FIXME: This feels really hackish, anything better? */
 523             audio_w = calloc( sizeof( hb_work_object_t ), 1 );
 524             audio_w = memcpy( audio_w, w, sizeof( hb_work_object_t ));
 525
 526             hb_list_add( job->list_work, audio_w );
 527         }
 528
 529
 530     }
 531
 532     /* Init read & write threads */
 533     job->reader = hb_reader_init( job );
 534
 535     hb_log( " + output: %s", job->file );
 536     job->muxer = hb_muxer_init( job );
 537
 538     job->done = 0;
 539
 540     /* Launch processing threads */
 541     for( i = 1; i < hb_list_count( job->list_work ); i++ )
 542     {
 543         w = hb_list_item( job->list_work, i );
 544         w->done = &job->done;
 545                 w->thread_sleep_interval = 10;
 546         w->init( w, job );
 547         w->thread = hb_thread_init( w->name, work_loop, w,
 548                                     HB_LOW_PRIORITY );
 549     }
 550
 551     done = 0;
 552     w = hb_list_item( job->list_work, 0 );
 553         w->thread_sleep_interval = 50;
 554     w->init( w, job );
 555     while( !*job->die )
 556     {
 557         if( w->work( w, NULL, NULL ) == HB_WORK_DONE )
 558         {
 559             done = 1;
 560         }
 561         if( done &&
 562             !hb_fifo_size( job->fifo_sync ) &&
 563             !hb_fifo_size( job->fifo_render ) &&
 564             !hb_fifo_size( job->fifo_mpeg4 ) )
 565         {
 566             break;
 567         }
 568         hb_snooze( w->thread_sleep_interval );
 569     }
 570     hb_list_rem( job->list_work, w );
 571     w->close( w );
 572     job->done = 1;
 573
 574     /* Close work objects */
 575     while( ( w = hb_list_item( job->list_work, 0 ) ) )
 576     {
 577         hb_list_rem( job->list_work, w );
 578         hb_thread_close( &w->thread );
 579         w->close( w );
 580
 581         /* FIXME: This feels really hackish, anything better? */
 582         if ( w->id == WORK_DECA52 ||
 583              w->id == WORK_DECDCA ||
 584              w->id == WORK_DECLPCM ||
 585              w->id == WORK_ENCFAAC ||
 586              w->id == WORK_ENCLAME ||
 587              w->id == WORK_ENCVORBIS )
 588         {
 589             free( w );
 590             w = NULL;
 591         }
 592     }
 593
 594     hb_list_close( &job->list_work );
 595
 596     /* Stop read & write threads */
 597     hb_thread_close( &job->reader );
 598     hb_thread_close( &job->muxer );
 599
 600     /* Close fifos */
 601     hb_fifo_close( &job->fifo_mpeg2 );
 602     hb_fifo_close( &job->fifo_raw );
 603     hb_fifo_close( &job->fifo_sync );
 604     hb_fifo_close( &job->fifo_render );
 605     hb_fifo_close( &job->fifo_mpeg4 );
 606     if( subtitle )
 607     {
 608         hb_fifo_close( &subtitle->fifo_in );
 609         hb_fifo_close( &subtitle->fifo_raw );
 610     }
 611     for( i = 0; i < hb_list_count( title->list_audio ); i++ )
 612     {
 613         audio = hb_list_item( title->list_audio, i );
 614         hb_fifo_close( &audio->fifo_in );
 615         hb_fifo_close( &audio->fifo_raw );
 616         hb_fifo_close( &audio->fifo_sync );
 617         hb_fifo_close( &audio->fifo_out );
 618     }
 619
 620     hb_title_close( &job->title );
 621     free( job );
 622 }
 623
 624 /**
 625  * Performs the work objects specific work function.
 626  * Loops calling work function for associated work object. Sleeps when fifo is full.
 627  * Monitors work done indicator.
 628  * Exits loop when work indiactor is set.
 629  * @param _w Handle to work object.
 630  */
 631 static void work_loop( void * _w )
 632 {
 633     hb_work_object_t * w = _w;
 634     hb_buffer_t      * buf_in, * buf_out;
 635
 636     while( !*w->done )
 637     {
 638 #if 0
 639         hb_lock( job->pause );
 640         hb_unlock( job->pause );
 641 #endif
 642         if( hb_fifo_is_full( w->fifo_out ) ||
 643 //        if( (hb_fifo_percent_full( w->fifo_out ) > 0.8) ||
 644             !( buf_in = hb_fifo_get( w->fifo_in ) ) )
 645         {
 646             hb_snooze( w->thread_sleep_interval );
 647 //                      w->thread_sleep_interval += 1;
 648             continue;
 649         }
 650 //              w->thread_sleep_interval = MAX(1, (w->thread_sleep_interval - 1));
 651
 652         w->work( w, &buf_in, &buf_out );
 653
 654         // Propogate any chapter breaks for the worker
 655         if( buf_in && buf_out && buf_in->new_chap )
 656         {
 657             printf("WORK: Copying Chapter Break\n");
 658             buf_out->new_chap = 1;
 659         }
 660
 661         if( buf_in )
 662         {
 663             hb_buffer_close( &buf_in );
 664         }
 665         if( buf_out )
 666         {
 667             hb_fifo_push( w->fifo_out, buf_out );
 668         }
 669     }
 670 }