git.sesse.net Git - vlc/blob - projects/macosx/framework/Sources/VLCMediaPlayer.m

   1 /*****************************************************************************
   2  * VLCMediaPlayer.m: VLCKit.framework VLCMediaPlayer implementation
   3  *****************************************************************************
   4  * Copyright (C) 2007-2009 Pierre d'Herbemont
   5  * Copyright (C) 2007-2009 the VideoLAN team
   6  * Partial Copyright (C) 2009 Felix Paul Kühne
   7  * $Id$
   8  *
   9  * Authors: Pierre d'Herbemont <pdherbemont # videolan.org>
  10  *          Faustion Osuna <enrique.osuna # gmail.com>
  11  *          Felix Paul Kühne <fkuehne # videolan.org>
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  26  *****************************************************************************/
  27
  28 #import "VLCLibrary.h"
  29 #import "VLCMediaPlayer.h"
  30 #import "VLCEventManager.h"
  31 #import "VLCLibVLCBridging.h"
  32 #import "VLCVideoView.h"
  33 #ifdef HAVE_CONFIG_H
  34 # include "config.h"
  35 #endif
  36
  37 /* prevent system sleep */
  38 #import <CoreServices/CoreServices.h>
  39 /* FIXME: Ugly hack! */
  40 #ifdef __x86_64__
  41 #import <CoreServices/../Frameworks/OSServices.framework/Headers/Power.h>
  42 #endif
  43
  44 #include <vlc/vlc.h>
  45
  46 /* Notification Messages */
  47 NSString * VLCMediaPlayerTimeChanged    = @"VLCMediaPlayerTimeChanged";
  48 NSString * VLCMediaPlayerStateChanged   = @"VLCMediaPlayerStateChanged";
  49
  50 NSString * VLCMediaPlayerStateToString(VLCMediaPlayerState state)
  51 {
  52     static NSString * stateToStrings[] = {
  53         [VLCMediaPlayerStateStopped]      = @"VLCMediaPlayerStateStopped",
  54         [VLCMediaPlayerStateOpening]      = @"VLCMediaPlayerStateOpening",
  55         [VLCMediaPlayerStateBuffering]    = @"VLCMediaPlayerStateBuffering",
  56         [VLCMediaPlayerStateEnded]        = @"VLCMediaPlayerStateEnded",
  57         [VLCMediaPlayerStateError]        = @"VLCMediaPlayerStateError",
  58         [VLCMediaPlayerStatePlaying]      = @"VLCMediaPlayerStatePlaying",
  59         [VLCMediaPlayerStatePaused]       = @"VLCMediaPlayerStatePaused"
  60     };
  61     return stateToStrings[state];
  62 }
  63
  64 /* libvlc event callback */
  65 static void HandleMediaInstanceVolumeChanged(const libvlc_event_t * event, void * self)
  66 {
  67     [[VLCEventManager sharedManager] callOnMainThreadDelegateOfObject:self
  68                                                    withDelegateMethod:@selector(mediaPlayerVolumeChanged:)
  69                                                  withNotificationName:VLCMediaPlayerVolumeChanged];
  70 }
  71
  72 static void HandleMediaTimeChanged(const libvlc_event_t * event, void * self)
  73 {
  74     NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
  75     [[VLCEventManager sharedManager] callOnMainThreadObject:self
  76                                                  withMethod:@selector(mediaPlayerTimeChanged:)
  77                                        withArgumentAsObject:[NSNumber numberWithLongLong:event->u.media_player_time_changed.new_time]];
  78
  79     [[VLCEventManager sharedManager] callOnMainThreadDelegateOfObject:self
  80                                                    withDelegateMethod:@selector(mediaPlayerTimeChanged:)
  81                                                  withNotificationName:VLCMediaPlayerTimeChanged];
  82     [pool release];
  83 }
  84
  85 static void HandleMediaPositionChanged(const libvlc_event_t * event, void * self)
  86 {
  87     NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
  88
  89     [[VLCEventManager sharedManager] callOnMainThreadObject:self
  90                                                  withMethod:@selector(mediaPlayerPositionChanged:)
  91                                        withArgumentAsObject:[NSNumber numberWithFloat:event->u.media_player_position_changed.new_position]];
  92     [pool release];
  93 }
  94
  95 static void HandleMediaInstanceStateChanged(const libvlc_event_t * event, void * self)
  96 {
  97     VLCMediaPlayerState newState;
  98
  99     if( event->type == libvlc_MediaPlayerPlaying )
 100         newState = VLCMediaPlayerStatePlaying;
 101     else if( event->type == libvlc_MediaPlayerPaused )
 102         newState = VLCMediaPlayerStatePaused;
 103     else if( event->type == libvlc_MediaPlayerEndReached )
 104         newState = VLCMediaPlayerStateStopped;
 105     else if( event->type == libvlc_MediaPlayerEncounteredError )
 106         newState = VLCMediaPlayerStateError;
 107     else
 108     {
 109         NSLog(@"%s: Unknown event", __FUNCTION__);
 110         return;
 111     }
 112
 113     NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
 114
 115     [[VLCEventManager sharedManager] callOnMainThreadObject:self
 116                                                  withMethod:@selector(mediaPlayerStateChanged:)
 117                                        withArgumentAsObject:[NSNumber numberWithInt:newState]];
 118
 119     [[VLCEventManager sharedManager] callOnMainThreadDelegateOfObject:self
 120                                                    withDelegateMethod:@selector(mediaPlayerStateChanged:)
 121                                                  withNotificationName:VLCMediaPlayerStateChanged];
 122
 123     [pool release];
 124
 125 }
 126
 127 static void HandleMediaPlayerMediaChanged(const libvlc_event_t * event, void * self)
 128 {
 129     NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
 130
 131     [[VLCEventManager sharedManager] callOnMainThreadObject:self
 132                                                  withMethod:@selector(mediaPlayerMediaChanged:)
 133                                        withArgumentAsObject:[VLCMedia mediaWithLibVLCMediaDescriptor:event->u.media_player_media_changed.new_media]];
 134
 135     [pool release];
 136
 137 }
 138
 139
 140 // TODO: Documentation
 141 @interface VLCMediaPlayer (Private)
 142 - (id)initWithDrawable:(id)aDrawable;
 143
 144 - (void)registerObservers;
 145 - (void)unregisterObservers;
 146 - (void)mediaPlayerTimeChanged:(NSNumber *)newTime;
 147 - (void)mediaPlayerPositionChanged:(NSNumber *)newTime;
 148 - (void)mediaPlayerStateChanged:(NSNumber *)newState;
 149 - (void)mediaPlayerMediaChanged:(VLCMedia *)media;
 150 @end
 151
 152 @implementation VLCMediaPlayer
 153
 154 /* Bindings */
 155 + (NSSet *)keyPathsForValuesAffectingValueForKey:(NSString *)key
 156 {
 157     static NSDictionary * dict = nil;
 158     NSSet * superKeyPaths;
 159     if( !dict )
 160     {
 161         dict = [[NSDictionary dictionaryWithObjectsAndKeys:
 162             [NSSet setWithObject:@"state"], @"playing",
 163             [NSSet setWithObjects:@"state", @"media", nil], @"seekable",
 164             [NSSet setWithObjects:@"state", @"media", nil], @"canPause",
 165             [NSSet setWithObjects:@"state", @"media", nil], @"description",
 166             nil] retain];
 167     }
 168     if( (superKeyPaths = [super keyPathsForValuesAffectingValueForKey: key]) )
 169     {
 170         NSMutableSet * ret = [NSMutableSet setWithSet:[dict objectForKey: key]];
 171         [ret unionSet:superKeyPaths];
 172         return ret;
 173     }
 174     return [dict objectForKey: key];
 175 }
 176
 177 /* Contructor */
 178 - (id)init
 179 {
 180     return [self initWithDrawable:nil];
 181 }
 182
 183 - (id)initWithVideoView:(VLCVideoView *)aVideoView
 184 {
 185     return [self initWithDrawable: aVideoView];
 186 }
 187
 188 - (id)initWithVideoLayer:(VLCVideoLayer *)aVideoLayer
 189 {
 190     return [self initWithDrawable: aVideoLayer];
 191 }
 192
 193 - (void)release
 194 {
 195     @synchronized(self)
 196     {
 197         if([self retainCount] <= 1)
 198         {
 199             /* We must make sure we won't receive new event after an upcoming dealloc
 200              * We also may receive a -retain in some event callback that may occcur
 201              * Before libvlc_event_detach. So this can't happen in dealloc */
 202             [self unregisterObservers];
 203         }
 204         [super release];
 205     }
 206 }
 207
 208 - (void)dealloc
 209 {
 210     NSAssert(libvlc_media_player_get_state(instance) == libvlc_Stopped, @"You released the media player before ensuring that it is stopped");
 211
 212     // Always get rid of the delegate first so we can stop sending messages to it
 213     // TODO: Should we tell the delegate that we're shutting down?
 214     delegate = nil;
 215
 216     // Clear our drawable as we are going to release it, we don't
 217     // want the core to use it from this point. This won't happen as
 218     // the media player must be stopped.
 219     libvlc_media_player_set_nsobject(instance, nil);
 220
 221     libvlc_media_player_release(instance);
 222
 223     // Get rid of everything else
 224     [media release];
 225     [cachedTime release];
 226     [cachedRemainingTime release];
 227     [drawable release];
 228
 229     [super dealloc];
 230 }
 231
 232 - (void)setDelegate:(id)value
 233 {
 234     delegate = value;
 235 }
 236
 237 - (id)delegate
 238 {
 239     return delegate;
 240 }
 241
 242 - (void)setVideoView:(VLCVideoView *)aVideoView
 243 {
 244     [self setDrawable: aVideoView];
 245 }
 246
 247 - (void)setVideoLayer:(VLCVideoLayer *)aVideoLayer
 248 {
 249     [self setDrawable: aVideoLayer];
 250 }
 251
 252 - (void)setDrawable:(id)aDrawable
 253 {
 254     // Make sure that this instance has been associated with the drawing canvas.
 255     libvlc_media_player_set_nsobject(instance, aDrawable);
 256 }
 257
 258 - (id)drawable
 259 {
 260     libvlc_exception_t ex;
 261     libvlc_exception_init( &ex );
 262     id ret = libvlc_media_player_get_nsobject(instance);
 263     catch_exception( &ex );
 264     return ret;
 265 }
 266
 267 - (VLCAudio *)audio
 268 {
 269     return [[VLCLibrary sharedLibrary] audio];
 270 }
 271
 272 #pragma mark -
 273 #pragma mark Subtitles
 274
 275 - (void)setCurrentVideoSubTitleIndex:(NSUInteger)index
 276 {
 277     libvlc_exception_t ex;
 278     libvlc_exception_init( &ex );
 279     libvlc_video_set_spu( instance, (int)index, &ex );
 280     catch_exception( &ex );
 281 }
 282
 283 - (NSUInteger)currentVideoSubTitleIndex
 284 {
 285     libvlc_exception_t ex;
 286     libvlc_exception_init( &ex );
 287     NSInteger count = libvlc_video_get_spu_count( instance, &ex );
 288     if (libvlc_exception_raised( &ex ))
 289     {
 290         libvlc_exception_clear( &ex );
 291         return NSNotFound;
 292     }
 293     if (count <= 0)
 294         return NSNotFound;
 295     NSUInteger result = libvlc_video_get_spu( instance, &ex );
 296     if (libvlc_exception_raised( &ex ))
 297     {
 298         libvlc_exception_clear( &ex );
 299         return NSNotFound;
 300     }
 301     else
 302         return result;
 303 }
 304
 305 - (BOOL)openVideoSubTitlesFromFile:(NSString *)path
 306 {
 307     libvlc_exception_t ex;
 308     libvlc_exception_init( &ex );
 309     BOOL result = libvlc_video_set_subtitle_file( instance, [path UTF8String], &ex );
 310     catch_exception( &ex );
 311     return result;
 312 }
 313
 314 - (NSArray *)videoSubTitles
 315 {
 316     libvlc_exception_t ex;
 317     libvlc_exception_init( &ex );
 318     libvlc_track_description_t *currentTrack = libvlc_video_get_spu_description( instance, &ex );
 319     catch_exception( &ex );
 320
 321     NSMutableArray *tempArray = [NSMutableArray array];
 322     while (currentTrack) {
 323         [tempArray addObject:[NSString stringWithUTF8String:currentTrack->psz_name]];
 324         free(currentTrack->psz_name);
 325         libvlc_track_description_t *tofree = currentTrack;
 326         currentTrack = currentTrack->p_next;
 327         free(tofree);
 328     }
 329     return [NSArray arrayWithArray: tempArray];
 330 }
 331
 332
 333 #pragma mark -
 334 #pragma mark Video Crop geometry
 335
 336 - (void)setVideoCropGeometry:(char *)value
 337 {
 338     libvlc_exception_t ex;
 339     libvlc_exception_init( &ex );
 340     libvlc_video_set_crop_geometry( instance, value, &ex );
 341     catch_exception( &ex );
 342 }
 343
 344 - (char *)videoCropGeometry
 345 {
 346     libvlc_exception_t ex;
 347     libvlc_exception_init( &ex );
 348     char * result = libvlc_video_get_crop_geometry( instance, &ex );
 349     catch_exception( &ex );
 350     return result;
 351 }
 352
 353 - (void)setVideoAspectRatio:(char *)value
 354 {
 355     libvlc_exception_t ex;
 356     libvlc_exception_init( &ex );
 357     libvlc_video_set_aspect_ratio( instance, value, &ex );
 358     catch_exception( &ex );
 359 }
 360
 361 - (char *)videoAspectRatio
 362 {
 363     libvlc_exception_t ex;
 364     libvlc_exception_init( &ex );
 365     char * result = libvlc_video_get_aspect_ratio( instance, &ex );
 366     catch_exception( &ex );
 367     return result;
 368 }
 369
 370 - (void)saveVideoSnapshotAt: (NSString *)path withWidth:(NSUInteger)width andHeight:(NSUInteger)height
 371 {
 372     libvlc_exception_t ex;
 373     libvlc_exception_init( &ex );
 374     libvlc_video_take_snapshot( instance, [path UTF8String], width, height, &ex );
 375     catch_exception( &ex );
 376 }
 377
 378 - (void)setDeinterlaceFilter: (NSString *)name enabled: (BOOL)enabled
 379 {
 380     libvlc_exception_t ex;
 381     libvlc_exception_init( &ex );
 382     libvlc_video_set_deinterlace( instance, (int)enabled , [name UTF8String], &ex );
 383     catch_exception( &ex );
 384 }
 385
 386 - (void)setRate:(float)value
 387 {
 388     libvlc_exception_t ex;
 389     libvlc_exception_init( &ex );
 390     libvlc_media_player_set_rate( instance, value, &ex );
 391     catch_exception( &ex );
 392 }
 393
 394 - (float)rate
 395 {
 396     libvlc_exception_t ex;
 397     libvlc_exception_init( &ex );
 398     float result = libvlc_media_player_get_rate( instance, &ex );
 399     if (libvlc_exception_raised(&ex))
 400     {
 401         result = 1;
 402         libvlc_exception_clear(&ex);
 403     }
 404     return result;
 405 }
 406
 407 - (NSSize)videoSize
 408 {
 409     libvlc_exception_t ex;
 410     libvlc_exception_init( &ex );
 411     NSSize result = NSMakeSize(libvlc_video_get_height((libvlc_media_player_t *)instance, &ex),
 412                                libvlc_video_get_width((libvlc_media_player_t *)instance, &ex));
 413     catch_exception( &ex );
 414     return result;
 415 }
 416
 417 - (BOOL)hasVideoOut
 418 {
 419     libvlc_exception_t ex;
 420     libvlc_exception_init( &ex );
 421     BOOL result = libvlc_media_player_has_vout((libvlc_media_player_t *)instance, &ex);
 422     if (libvlc_exception_raised( &ex ))
 423     {
 424         libvlc_exception_clear( &ex );
 425         return NO;
 426     }
 427     else
 428         return result;
 429 }
 430
 431 - (float)framesPerSecond
 432 {
 433     libvlc_exception_t ex;
 434     libvlc_exception_init( &ex );
 435     float result = libvlc_media_player_get_fps( (libvlc_media_player_t *)instance, &ex );
 436     catch_exception( &ex );
 437     return result;
 438 }
 439
 440 - (void)setTime:(VLCTime *)value
 441 {
 442     libvlc_exception_t ex;
 443     libvlc_exception_init( &ex );
 444     // Time is managed in seconds, while duration is managed in microseconds
 445     // TODO: Redo VLCTime to provide value numberAsMilliseconds, numberAsMicroseconds, numberAsSeconds, numberAsMinutes, numberAsHours
 446     libvlc_media_player_set_time( (libvlc_media_player_t *)instance,
 447                                     (value ? [[value numberValue] longLongValue] : 0),
 448                                     &ex );
 449     catch_exception( &ex );
 450 }
 451
 452 - (VLCTime *)time
 453 {
 454     return cachedTime;
 455 }
 456
 457 - (VLCTime *)remainingTime
 458 {
 459     return cachedRemainingTime;
 460 }
 461
 462 - (NSUInteger)fps
 463 {
 464     libvlc_exception_t ex;
 465     libvlc_exception_init( &ex );
 466     NSUInteger result = libvlc_media_player_get_fps( instance, &ex );
 467     catch_exception( &ex );
 468     return result;
 469 }
 470
 471 #pragma mark -
 472 #pragma mark Chapters
 473 - (void)setCurrentChapterIndex:(NSUInteger)value;
 474 {
 475     libvlc_exception_t ex;
 476     libvlc_exception_init( &ex );
 477     libvlc_media_player_set_chapter( instance, value, &ex );
 478     catch_exception( &ex );
 479 }
 480
 481 - (NSUInteger)currentChapterIndex
 482 {
 483     libvlc_exception_t ex;
 484     libvlc_exception_init( &ex );
 485     NSInteger count = libvlc_media_player_get_chapter_count( instance, &ex );
 486     catch_exception( &ex );
 487     if (count <= 0)
 488         return NSNotFound;
 489     NSUInteger result = libvlc_media_player_get_chapter( instance, &ex );
 490     catch_exception( &ex );
 491     return result;
 492 }
 493
 494 - (void)nextChapter
 495 {
 496     libvlc_exception_t ex;
 497     libvlc_exception_init( &ex );
 498     libvlc_media_player_next_chapter( instance, &ex );
 499     catch_exception( &ex );
 500 }
 501
 502 - (void)previousChapter
 503 {
 504     libvlc_exception_t ex;
 505     libvlc_exception_init( &ex );
 506     libvlc_media_player_previous_chapter( instance, &ex );
 507     catch_exception( &ex );
 508 }
 509
 510 - (NSArray *)chaptersForTitleIndex:(NSUInteger)title
 511 {
 512     libvlc_exception_t ex;
 513     libvlc_exception_init( &ex );
 514     NSInteger count = libvlc_media_player_get_chapter_count(instance, &ex);
 515     if (count <= 0)
 516         return [NSArray array];
 517
 518     libvlc_track_description_t *tracks = libvlc_video_get_chapter_description( instance, title, &ex );
 519     NSMutableArray *tempArray = [NSMutableArray array];
 520     NSInteger i;
 521     for (i = 0; i < count ; i++)
 522     {
 523         [tempArray addObject:[NSString stringWithUTF8String: tracks->psz_name]];
 524         tracks = tracks->p_next;
 525     }
 526     return [NSArray arrayWithArray: tempArray];
 527 }
 528
 529 #pragma mark -
 530 #pragma mark Titles
 531
 532 - (void)setCurrentTitleIndex:(NSUInteger)value
 533 {
 534     libvlc_exception_t ex;
 535     libvlc_exception_init( &ex );
 536     libvlc_media_player_set_title( instance, value, &ex );
 537     catch_exception( &ex );
 538 }
 539
 540 - (NSUInteger)currentTitleIndex
 541 {
 542     libvlc_exception_t ex;
 543     libvlc_exception_init( &ex );
 544
 545     NSInteger count = libvlc_media_player_get_title_count( instance, &ex );
 546     catch_exception( &ex );
 547     if (count <= 0)
 548         return NSNotFound;
 549
 550     NSUInteger result = libvlc_media_player_get_title( instance, &ex );
 551     catch_exception( &ex );
 552     return result;
 553 }
 554
 555 - (NSUInteger)countOfTitles
 556 {
 557     libvlc_exception_t ex;
 558     libvlc_exception_init( &ex );
 559     NSUInteger result = libvlc_media_player_get_title_count( instance, &ex );
 560     catch_exception( &ex );
 561     return result;
 562 }
 563
 564 - (NSArray *)titles
 565 {
 566     libvlc_exception_t ex;
 567     libvlc_exception_init( &ex );
 568     libvlc_track_description_t *tracks = libvlc_video_get_title_description( instance, &ex );
 569     NSMutableArray *tempArray = [NSMutableArray array];
 570     NSInteger i;
 571     for (i = 0; i < [self countOfTitles] ; i++)
 572     {
 573         [tempArray addObject:[NSString stringWithUTF8String: tracks->psz_name]];
 574         tracks = tracks->p_next;
 575     }
 576     return [NSArray arrayWithArray: tempArray];
 577 }
 578
 579 #pragma mark -
 580 #pragma mark Audio tracks
 581 - (void)setCurrentAudioTrackIndex:(NSUInteger)value
 582 {
 583     libvlc_exception_t ex;
 584     libvlc_exception_init( &ex );
 585     libvlc_audio_set_track( instance, (int)value, &ex );
 586     catch_exception( &ex );
 587 }
 588
 589 - (NSUInteger)currentAudioTrackIndex
 590 {
 591     libvlc_exception_t ex;
 592     libvlc_exception_init( &ex );
 593     NSInteger count = libvlc_audio_get_track_count( instance, &ex );
 594     catch_exception( &ex );
 595     if (count <= 0)
 596         return NSNotFound;
 597
 598     NSUInteger result = libvlc_audio_get_track( instance, &ex );
 599     catch_exception( &ex );
 600     return result;
 601 }
 602
 603 - (NSArray *)audioTracks
 604 {
 605     libvlc_exception_t ex;
 606     libvlc_exception_init( &ex );
 607     NSInteger count = libvlc_audio_get_track_count( instance, &ex );
 608     catch_exception( &ex );
 609     if (count <= 0)
 610         return [NSArray array];
 611
 612     libvlc_track_description_t *tracks = libvlc_audio_get_track_description( instance, &ex );
 613     NSMutableArray *tempArray = [NSMutableArray array];
 614     NSUInteger i;
 615     for (i = 0; i < count ; i++)
 616     {
 617         [tempArray addObject:[NSString stringWithUTF8String: tracks->psz_name]];
 618         tracks = tracks->p_next;
 619     }
 620
 621     return [NSArray arrayWithArray: tempArray];
 622 }
 623
 624 - (void)setAudioChannel:(NSInteger)value
 625 {
 626     libvlc_exception_t ex;
 627     libvlc_exception_init( &ex );
 628     libvlc_audio_set_channel( instance, value, &ex );
 629     catch_exception( &ex );
 630 }
 631
 632 - (NSInteger)audioChannel
 633 {
 634     libvlc_exception_t ex;
 635     libvlc_exception_init( &ex );
 636     NSInteger result = libvlc_audio_get_channel( instance, &ex );
 637     catch_exception( &ex );
 638     return result;
 639 }
 640
 641 - (void)setMedia:(VLCMedia *)value
 642 {
 643     if (media != value)
 644     {
 645         if (media && [media compare:value] == NSOrderedSame)
 646             return;
 647
 648         [media release];
 649         media = [value retain];
 650
 651         libvlc_media_player_set_media(instance, [media libVLCMediaDescriptor]);
 652     }
 653 }
 654
 655 - (VLCMedia *)media
 656 {
 657     return media;
 658 }
 659
 660 - (BOOL)play
 661 {
 662     libvlc_exception_t ex;
 663     libvlc_exception_init( &ex );
 664     libvlc_media_player_play( (libvlc_media_player_t *)instance, &ex );
 665     catch_exception( &ex );
 666     return YES;
 667 }
 668
 669 - (void)pause
 670 {
 671     if( [NSThread isMainThread] )
 672     {
 673         /* Hack because we create a dead lock here, when the vout is stopped
 674          * and tries to recontact us on the main thread */
 675         /* FIXME: to do this properly we need to do some locking. We may want
 676          * to move that to libvlc */
 677         [self performSelectorInBackground:@selector(pause) withObject:nil];
 678         return;
 679     }
 680
 681     // Pause the stream
 682     libvlc_exception_t ex;
 683     libvlc_exception_init(&ex);
 684     libvlc_media_player_pause(instance, &ex);
 685
 686     // fail gracefully
 687     // in most cases, it's just EOF so let's stop
 688     if (libvlc_exception_raised(&ex))
 689         [self stop];
 690
 691     libvlc_exception_clear(&ex);
 692 }
 693
 694 - (void)stop
 695 {
 696     libvlc_media_player_stop(instance);
 697 }
 698
 699 - (void)gotoNextFrame
 700 {
 701     libvlc_exception_t e;
 702     libvlc_exception_init(&e);
 703     libvlc_media_player_next_frame(instance, &e);
 704     catch_exception(&e);
 705
 706 }
 707
 708 - (void)fastForward
 709 {
 710     [self fastForwardAtRate: 2.0];
 711 }
 712
 713 - (void)fastForwardAtRate:(float)rate
 714 {
 715     [self setRate:rate];
 716 }
 717
 718 - (void)rewind
 719 {
 720     [self rewindAtRate: 2.0];
 721 }
 722
 723 - (void)rewindAtRate:(float)rate
 724 {
 725     [self setRate: -rate];
 726 }
 727
 728 - (void)jumpBackward:(NSInteger)interval
 729 {
 730     if( [self isSeekable] )
 731     {
 732         interval = interval * 1000;
 733         [self setTime: [VLCTime timeWithInt: ([[self time] intValue] - interval)]];
 734     }
 735 }
 736
 737 - (void)jumpForward:(NSInteger)interval
 738 {
 739     if( [self isSeekable] )
 740     {
 741         interval = interval * 1000;
 742         [self setTime: [VLCTime timeWithInt: ([[self time] intValue] + interval)]];
 743     }
 744 }
 745
 746 - (void)extraShortJumpBackward
 747 {
 748     [self jumpBackward:3];
 749 }
 750
 751 - (void)extraShortJumpForward
 752 {
 753     [self jumpForward:3];
 754 }
 755
 756 - (void)shortJumpBackward
 757 {
 758     [self jumpBackward:10];
 759 }
 760
 761 - (void)shortJumpForward
 762 {
 763     [self jumpForward:10];
 764 }
 765
 766 - (void)mediumJumpBackward
 767 {
 768     [self jumpBackward:60];
 769 }
 770
 771 - (void)mediumJumpForward
 772 {
 773     [self jumpForward:60];
 774 }
 775
 776 - (void)longJumpBackward
 777 {
 778     [self jumpBackward:300];
 779 }
 780
 781 - (void)longJumpForward
 782 {
 783     [self jumpForward:300];
 784 }
 785
 786 + (NSSet *)keyPathsForValuesAffectingIsPlaying
 787 {
 788     return [NSSet setWithObjects:@"state", nil];
 789 }
 790
 791 - (BOOL)isPlaying
 792 {
 793     VLCMediaPlayerState state = [self state];
 794     return ((state == VLCMediaPlayerStateOpening) || (state == VLCMediaPlayerStateBuffering) ||
 795             (state == VLCMediaPlayerStatePlaying));
 796 }
 797
 798 - (BOOL)willPlay
 799 {
 800     libvlc_exception_t ex;
 801     libvlc_exception_init( &ex );
 802     BOOL ret = libvlc_media_player_will_play( (libvlc_media_player_t *)instance, &ex );
 803     if (libvlc_exception_raised(&ex))
 804     {
 805         libvlc_exception_clear(&ex);
 806         return NO;
 807     }
 808     else
 809         return ret;
 810 }
 811
 812 static const VLCMediaPlayerState libvlc_to_local_state[] =
 813 {
 814     [libvlc_Stopped]    = VLCMediaPlayerStateStopped,
 815     [libvlc_Opening]    = VLCMediaPlayerStateOpening,
 816     [libvlc_Buffering]  = VLCMediaPlayerStateBuffering,
 817     [libvlc_Playing]    = VLCMediaPlayerStatePlaying,
 818     [libvlc_Paused]     = VLCMediaPlayerStatePaused,
 819     [libvlc_Ended]      = VLCMediaPlayerStateEnded,
 820     [libvlc_Error]      = VLCMediaPlayerStateError
 821 };
 822
 823 - (VLCMediaPlayerState)state
 824 {
 825     return cachedState;
 826 }
 827
 828 - (float)position
 829 {
 830     return position;
 831 }
 832
 833 - (void)setPosition:(float)newPosition
 834 {
 835     libvlc_exception_t ex;
 836     libvlc_exception_init( &ex );
 837     libvlc_media_player_set_position( instance, newPosition, &ex );
 838     catch_exception( &ex );
 839 }
 840
 841 - (BOOL)isSeekable
 842 {
 843     libvlc_exception_t ex;
 844     libvlc_exception_init( &ex );
 845     BOOL ret = libvlc_media_player_is_seekable( instance, &ex );
 846     catch_exception( &ex );
 847     return ret;
 848 }
 849
 850 - (BOOL)canPause
 851 {
 852     libvlc_exception_t ex;
 853     libvlc_exception_init( &ex );
 854     BOOL ret = libvlc_media_player_can_pause( instance, &ex );
 855     catch_exception( &ex );
 856     return ret;
 857 }
 858
 859 - (void *)libVLCMediaPlayer
 860 {
 861     return instance;
 862 }
 863 @end
 864
 865 @implementation VLCMediaPlayer (Private)
 866 - (id)initWithDrawable:(id)aDrawable
 867 {
 868     if (self = [super init])
 869     {
 870         delegate = nil;
 871         media = nil;
 872         cachedTime = [[VLCTime nullTime] retain];
 873         cachedRemainingTime = [[VLCTime nullTime] retain];
 874         position = 0.0f;
 875         cachedState = VLCMediaPlayerStateStopped;
 876
 877         // Create a media instance, it doesn't matter what library we start off with
 878         // it will change depending on the media descriptor provided to the media
 879         // instance
 880         libvlc_exception_t ex;
 881         libvlc_exception_init( &ex );
 882         instance = (void *)libvlc_media_player_new([VLCLibrary sharedInstance], &ex);
 883         catch_exception( &ex );
 884
 885         [self registerObservers];
 886
 887         [self setDrawable:aDrawable];
 888     }
 889     return self;
 890 }
 891
 892 - (void)registerObservers
 893 {
 894     // Attach event observers into the media instance
 895     libvlc_event_manager_t * p_em = libvlc_media_player_event_manager(instance);
 896     libvlc_event_attach(p_em, libvlc_MediaPlayerPlaying,          HandleMediaInstanceStateChanged, self);
 897     libvlc_event_attach(p_em, libvlc_MediaPlayerPaused,           HandleMediaInstanceStateChanged, self);
 898     libvlc_event_attach(p_em, libvlc_MediaPlayerEncounteredError, HandleMediaInstanceStateChanged, self);
 899     libvlc_event_attach(p_em, libvlc_MediaPlayerEndReached,       HandleMediaInstanceStateChanged, self);
 900     /* FIXME: We may want to turn that off when none is interested by that */
 901     libvlc_event_attach(p_em, libvlc_MediaPlayerPositionChanged, HandleMediaPositionChanged,      self);
 902     libvlc_event_attach(p_em, libvlc_MediaPlayerTimeChanged,     HandleMediaTimeChanged,          self);
 903     libvlc_event_attach(p_em, libvlc_MediaPlayerMediaChanged,    HandleMediaPlayerMediaChanged,  self);
 904 }
 905
 906 - (void)unregisterObservers
 907 {
 908     libvlc_event_manager_t * p_em = libvlc_media_player_event_manager(instance);
 909     libvlc_event_detach(p_em, libvlc_MediaPlayerPlaying,          HandleMediaInstanceStateChanged, self);
 910     libvlc_event_detach(p_em, libvlc_MediaPlayerPaused,           HandleMediaInstanceStateChanged, self);
 911     libvlc_event_detach(p_em, libvlc_MediaPlayerEncounteredError, HandleMediaInstanceStateChanged, self);
 912     libvlc_event_detach(p_em, libvlc_MediaPlayerEndReached,       HandleMediaInstanceStateChanged, self);
 913     libvlc_event_detach(p_em, libvlc_MediaPlayerPositionChanged,  HandleMediaPositionChanged,      self);
 914     libvlc_event_detach(p_em, libvlc_MediaPlayerTimeChanged,      HandleMediaTimeChanged,          self);
 915     libvlc_event_detach(p_em, libvlc_MediaPlayerMediaChanged,     HandleMediaPlayerMediaChanged,   self);
 916 }
 917
 918 - (void)mediaPlayerTimeChanged:(NSNumber *)newTime
 919 {
 920     [self willChangeValueForKey:@"time"];
 921     [self willChangeValueForKey:@"remainingTime"];
 922     [cachedTime release];
 923     cachedTime = [[VLCTime timeWithNumber:newTime] retain];
 924     [cachedRemainingTime release];
 925     double currentTime = [[cachedTime numberValue] doubleValue];
 926     double remaining = currentTime / position * (1 - position);
 927     cachedRemainingTime = [[VLCTime timeWithNumber:[NSNumber numberWithDouble:-remaining]] retain];
 928     [self didChangeValueForKey:@"remainingTime"];
 929     [self didChangeValueForKey:@"time"];
 930 }
 931
 932 - (void)delaySleep
 933 {
 934     UpdateSystemActivity(UsrActivity);
 935 }
 936
 937 - (void)mediaPlayerPositionChanged:(NSNumber *)newPosition
 938 {
 939     // This seems to be the most relevant place to delay sleeping and screen saver.
 940     [self delaySleep];
 941
 942     [self willChangeValueForKey:@"position"];
 943     position = [newPosition floatValue];
 944     [self didChangeValueForKey:@"position"];
 945 }
 946
 947 - (void)mediaPlayerStateChanged:(NSNumber *)newState
 948 {
 949     [self willChangeValueForKey:@"state"];
 950     cachedState = [newState intValue];
 951     [self didChangeValueForKey:@"state"];
 952 }
 953
 954 - (void)mediaPlayerMediaChanged:(VLCMedia *)newMedia
 955 {
 956     [self willChangeValueForKey:@"media"];
 957     if (media != newMedia)
 958     {
 959         [media release];
 960         media = [newMedia retain];
 961     }
 962     [self didChangeValueForKey:@"media"];
 963 }
 964
 965 @end