ijkPlayer 简单使用

上一篇文章ijkPlayer编译、打包、多格式及Https支持中详细介绍了 ijkPlayer 的编译及集成，这里说一下简单的使用。

#import <IJKMediaFramework/IJKMediaPlayer.h>

@interface PlayerViewController ()

@property (nonatomic,strong) id<IJKMediaPlayback> player;

@property (nonatomic, weak) UIView *disPlayerView;

@end

@implementation PlayerViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.view.backgroundColor = [UIColor whiteColor];
    
    [self createPlayerBaseView];
    
    [self createBtn];
    
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        
        [self createPlayerWithUrlStr:@"http://pl-ali.youku.com/playlist/m3u8?vid=XMTUxMTU0NzA3Ng%3D%3D&type=mp4&ups_client_netip=7ccda03e&utid=WvVPj35hEWUDAD1%2F6UmfLEIM&ccode=0590&psid=5d12228feb98c5a249ae6a63df2442a6&duration=6808&expire=18000&drm_type=1&drm_device=10&ups_ts=1526032072&onOff=0&encr=0&ups_key=e063ff139dc55f75c431a5954ae66b59"];
    });
}

- (void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];
    
    [self removeMovieNotificationObservers];
    [self.player stop];
    [[self.player view] removeFromSuperview];
}

#pragma mark - 按钮
- (void)createBtn {
    
    UIButton *playBtn = [UIButton buttonWithType:UIButtonTypeSystem];
    playBtn.backgroundColor = [UIColor orangeColor];
    playBtn.frame = CGRectMake(10, 500, 100, 40);
    [playBtn setTitle:@"播放/暂停" forState:UIControlStateNormal];
    [playBtn addTarget:self action:@selector(playBtnClick) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:playBtn];
}

- (void)playBtnClick {
    
    if (self.player.isPlaying) {
        
        [self.player pause];
    }else {
        
        [self.player play];
    }
}

- (void)createPlayerBaseView {
    
    UIView *disPlayerView = [[UIView alloc] initWithFrame:CGRectMake(0, 200, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.width/16.0*9.0)];
    self.disPlayerView = disPlayerView;
    disPlayerView.backgroundColor = [UIColor blackColor];
    [self.view addSubview:disPlayerView];
}

- (void)createPlayerWithUrlStr:(NSString *)urlStr {
    
    NSURL *url = [NSURL URLWithString:urlStr];
    
    IJKFFOptions *options = [IJKFFOptions optionsByDefault];
    //非标准桢率会导致音画不同步，所以设定为 15 或者 29.97
    [options setOptionValue:@"29.97" forKey:@"max-fps" ofCategory:kIJKFFOptionCategoryPlayer];
    //若视频处理不过来，会导致音视频不同步，此时丢掉部分帧
    [options setPlayerOptionIntValue:5 forKey:@"framedrop"];
    
    self.player = [[IJKFFMoviePlayerController alloc] initWithContentURL:url withOptions:options];
    UIView *playerView = [self.player view];
    NSLog(@"%@", self.player);
    playerView.frame = self.disPlayerView.bounds;
    
    [self.disPlayerView insertSubview:playerView atIndex:1];
    [self installMovieNotificationObservers];
    
    if (![self.player isPlaying]) {
        [self.player prepareToPlay];
    }
}

#pragma Selector func

- (void)loadStateDidChange:(NSNotification*)notification {
    IJKMPMovieLoadState loadState = _player.loadState;
    
    if ((loadState & IJKMPMovieLoadStatePlaythroughOK) != 0) {
        NSLog(@"LoadStateDidChange: IJKMovieLoadStatePlayThroughOK: %d\n",(int)loadState);
    }else if ((loadState & IJKMPMovieLoadStateStalled) != 0) {
        NSLog(@"loadStateDidChange: IJKMPMovieLoadStateStalled: %d\n", (int)loadState);
    } else {
        NSLog(@"loadStateDidChange: ???: %d\n", (int)loadState);
    }
}

- (void)moviePlayBackFinish:(NSNotification*)notification {
    int reason =[[[notification userInfo] valueForKey:IJKMPMoviePlayerPlaybackDidFinishReasonUserInfoKey] intValue];
    switch (reason) {
        case IJKMPMovieFinishReasonPlaybackEnded:
            NSLog(@"playbackStateDidChange: IJKMPMovieFinishReasonPlaybackEnded: %d\n", reason);
            break;
            
        case IJKMPMovieFinishReasonUserExited:
            NSLog(@"playbackStateDidChange: IJKMPMovieFinishReasonUserExited: %d\n", reason);
            break;
            
        case IJKMPMovieFinishReasonPlaybackError:
            NSLog(@"playbackStateDidChange: IJKMPMovieFinishReasonPlaybackError: %d\n", reason);
            break;
            
        default:
            NSLog(@"playbackPlayBackDidFinish: ???: %d\n", reason);
            break;
    }
}

- (void)mediaIsPreparedToPlayDidChange:(NSNotification*)notification {
    NSLog(@"mediaIsPrepareToPlayDidChange\n");
}

- (void)moviePlayBackStateDidChange:(NSNotification*)notification {
    switch (_player.playbackState) {
        case IJKMPMoviePlaybackStateStopped:
            NSLog(@"IJKMPMoviePlayBackStateDidChange %d: stoped", (int)_player.playbackState);
            break;
            
        case IJKMPMoviePlaybackStatePlaying:
            NSLog(@"IJKMPMoviePlayBackStateDidChange %d: playing", (int)_player.playbackState);
            break;
            
        case IJKMPMoviePlaybackStatePaused:
            NSLog(@"IJKMPMoviePlayBackStateDidChange %d: paused", (int)_player.playbackState);
            break;
            
        case IJKMPMoviePlaybackStateInterrupted:
            NSLog(@"IJKMPMoviePlayBackStateDidChange %d: interrupted", (int)_player.playbackState);
            break;
            
        case IJKMPMoviePlaybackStateSeekingForward:
        case IJKMPMoviePlaybackStateSeekingBackward: {
            NSLog(@"IJKMPMoviePlayBackStateDidChange %d: seeking", (int)_player.playbackState);
            break;
        }
            
        default: {
            NSLog(@"IJKMPMoviePlayBackStateDidChange %d: unknown", (int)_player.playbackState);
            break;
        }
    }
}

#pragma Install Notifiacation

- (void)installMovieNotificationObservers {
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(loadStateDidChange:)
                                                 name:IJKMPMoviePlayerLoadStateDidChangeNotification
                                               object:_player];
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(moviePlayBackFinish:)
                                                 name:IJKMPMoviePlayerPlaybackDidFinishNotification
                                               object:_player];
    
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(mediaIsPreparedToPlayDidChange:)
                                                 name:IJKMPMediaPlaybackIsPreparedToPlayDidChangeNotification
                                               object:_player];
    
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(moviePlayBackStateDidChange:)
                                                 name:IJKMPMoviePlayerPlaybackStateDidChangeNotification
                                               object:_player];
    
}

#pragma Remove Notifiacation

- (void)removeMovieNotificationObservers {
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:IJKMPMoviePlayerLoadStateDidChangeNotification
                                                  object:_player];
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:IJKMPMoviePlayerPlaybackDidFinishNotification
                                                  object:_player];
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:IJKMPMediaPlaybackIsPreparedToPlayDidChangeNotification
                                                  object:_player];
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:IJKMPMoviePlayerPlaybackStateDidChangeNotification
                                                  object:_player];
    
}