一、AVPlayer
能播放本地、远程的音频、视频文件；基于Layer显示，得自己去编写控制面板。
- 本地视频:
#import <AVFoundation/AVFoundation.h>
@interface ViewController ()
@property (nonatomic, strong) AVPlayer *player;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// 初始化
NSURL*url = [[NSBundlemainBundle] URLForResource:@"promo_full.mp4"withExtension:nil];
self.player = [AVPlayer playerWithURL:url];
// 设置播放图层
AVPlayerLayer *playerLayer = [AVPlayerLayer playerLayerWithPlayer:self.player];
playerLayer.frame = self.view.bounds;
[self.view.layer addSublayer:playerLayer];
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
// 开始播放
[self.player play];
}
@end
2.在线视频：
#import <AVFoundation/AVFoundation.h>
@interface ViewController ()
@property (nonatomic, strong) AVPlayer *player;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// 初始化
NSURL*url = [NSURLURLWithString:@"http://streams.videolan.org/streams/mp4/Mr_MrsSmith-h264_aac.mp4"];
self.player = [AVPlayer playerWithURL:url];
// 设置播放图层
AVPlayerLayer *playerLayer = [AVPlayerLayer playerLayerWithPlayer:self.player];
playerLayer.frame = self.view.bounds;
[self.view.layer addSublayer:playerLayer];
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
// 开始播放
[self.player play];
}
@end
注意：
播放视频时需要设置播放视频图层。
二、MPMoviePlayerController
能播放本地、远程的音频、视频文件,YouTobe就是用MPMoviePlayerController实现的
它继承自NSObject，自带播放控制面板（暂停、播放、播放进度、是否要全屏）
MPMoviePlayerController可以播放的视频格式包括：H.264、MPEG-4等；支持的文件扩展名包括：avi,mkv,mov,m4v,mp4等
此类定义在了MediaPlayer框架
加载视频资源(注意，如果url为nil同样可以加载)
NSAssert(self.url, @"URL不能为空");
[[MPMoviePlayerController alloc] initWithContentURL:self.url];显示 ：[self.view addSubview:self.moviePlayer.view];
通过设置AutoresizingMask属性可以在横竖屏转换时自动调整视图大小播放：[self.moviePlayer play];
全屏 ：[self.moviePlayer setFullscreen:YES animated:YES];
MPMoviePlayerController的播放状态是通过通知中心监听的，常用监听通知事件
状态变化
MPMoviePlayerPlaybackStateDidChangeNotification播放结束
MPMoviePlayerPlaybackDidFinishNotification退出全屏
MPMoviePlayerDidExitFullscreenNotification截屏完成
MPMoviePlayerThumbnailImageRequestDidFinishNotification截屏方法
-requestThumbnailImagesAtTimes:timeOption:
- 代码实现
#import <MediaPlayer/MediaPlayer.h>
@interface ViewController ()
/**
* 视频播放器
*/
@property (nonatomic, strong) MPMoviePlayerController *moviePlayer;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// 创建视频播放器
NSURL *url = [[NSBundle mainBundle] URLForResource:@"promo_full.mp4" withExtension:nil];
// NSURL *url = [NSURL URLWithString:@"http://streams.videolan.org/streams/mp4/Mr_MrsSmith-h264_aac.mp4"];
self.moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:url];
// 设置播放显示视图
self.moviePlayer.view.frame = self.view.bounds;
[self.view addSubview:self.moviePlayer.view];
// 使用autoLayout适配横竖屏
// 1.禁用translatesAutoresizingMaskIntoConstraints
self.moviePlayer.view.translatesAutoresizingMaskIntoConstraints = NO;
// 2.设置约束
NSArray *constraintH = [NSLayoutConstraint constraintsWithVisualFormat:@"H:|-0-[moviePlayerView]-0-|" options:0 metrics:nil views:@{@"moviePlayerView" :self.moviePlayer.view}];
NSArray *constraintV = [NSLayoutConstraint constraintsWithVisualFormat:@"V:|-0-[moviePlayerView]-0-|" options:0 metrics:nil views:@{@"moviePlayerView" :self.moviePlayer.view}];
[self.view addConstraints:constraintH];
[self.view addConstraints:constraintV];
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
// 两种方式都是直接播放
// 播放视频
[self.moviePlayer play];
// 准备后直接播放
// [self.moviePlayer prepareToPlay];
}
@end
三、MPMoviePlayerViewController
- 能播放本地、远程的音频、视频文件
- 内部是封装了MPMoviePlayerController
- 播放界面默认就是全屏的
- 如果播放功能比较简单，仅仅是简单地播放远程、本地的视频文件，建议用这个
- 此类定义在了MediaPlayer框架
- 代码实现
#import <MediaPlayer/MediaPlayer.h>
@interface ViewController ()
@end
@implementation ViewController
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
// 创建播放控制器
NSURL*url = [NSURLURLWithString:@"http://streams.videolan.org/streams/mp4/Mr_MrsSmith-h264_aac.mp4"];
MPMoviePlayerViewController*moviePlayerVc = [[MPMoviePlayerViewControlleralloc] initWithContentURL:url];
// 播放视频
[self presentMoviePlayerViewControllerAnimated:moviePlayerVc ];
}
@end
注意：
使用MPMoviePlayerViewController时创建的视频播放控制器不需要强引用。
