iOS: ios视频播放（MPMediaPlayerController，AVPlayer，AVPlayerViewcontroller、ffmpeg-AVPlayer）

介绍：

和音频播放一样，ios也提供个很多的API。如mediaPlayer.framework下的MPMediaPlayerController、AVFounditon.framework下的AVPlayer和AVKit下的AVPlayerViewcontroller。MPMovieplayerController已经在ios9.0中被废弃了，用来替代的是AVPlayerViewcontroller。尽管如此，但还是说一下比较熟悉的MPMovieplayerController.

1、MPMovieplayerController

<1>初始化MPMovieplayerController

// 创建本地URL（也可创建基于网络的URL)

NSURL* movieUrl = [[NSBundlemainBundle]URLForResource:@"movie"withExtension:@"mp4"];

// 使用指定URL创建MPMoviePlayerController

// MPMoviePlayerController将会播放该URL对应的视频

MPMoviePlayerController *moviePlayer = [[MPMoviePlayerControlleralloc]initWithContentURL:movieUrl];

<2>设置属性并添加到当前控制器的View上

// 设置该播放器的控制条风格。
moviePlayer.controlStyle =MPMovieControlStyleEmbedded;

// 设置该播放器的缩放模式
moviePlayer.scalingMode =MPMovieScalingModeAspectFit;

//设置播放视图大小
 _movieplayer.view.frame = self.view.bounds;

//设置播放视图宽高自适应调整
_movieplayer.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

//添加到当前控制器的View上
[self.View  addSubview:moviePlayer.view];

<3>播放选择

//播放缓冲
[self.movieplayer prepareToPlay];

//播放开始
[moviePlayer play];

//播放暂停
[moviePlayer pause];

//播放停止
[moviePlayer stop];

由于属性太多，这里只列出能完成简单的播放器的属性，其他属性可在头文件中查找，注意：播放的状态的监听和截图功能都是通过通知实现的。

这里给一个具体的代码：

ViewController类

#import "ViewController.h"
#import "PlayViewController.h"

@interface ViewController ()<PlayViewControllerDelegate>
@property (weak, nonatomic) IBOutlet UIImageView *imageView;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    self.navigationItem.title = @"播放器";
}

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{

    PlayViewController *playContronller = segue.destinationViewController;
    playContronller.delegate = self;
}

#pragma mark <PlayViewControllerDelegate>
-(void)dismissPlayViewController{

    [self dismissViewControllerAnimated:self completion:nil];
}
-(void)setImageWithThumbnailImage:(UIImage *)image{

    self.imageView.image = image;
}
@end

PlayViewController类

#import <UIKit/UIKit.h>

@protocol PlayViewControllerDelegate <NSObject>

//关闭模态窗体
-(void)dismissPlayViewController;

//设置截图
-(void)setImageWithThumbnailImage:(UIImage *)image;

@end

@interface PlayViewController : UIViewController
@property (assign,nonatomic)id<PlayViewControllerDelegate> delegate;
@end

#import "PlayViewController.h"
#import <MediaPlayer/MediaPlayer.h>
#import <AVKit/AVKit.h>

@interface PlayViewController ()
@property (strong,nonatomic)MPMoviePlayerController *movieplayer;
@end

@implementation PlayViewController

/** 创建视频播放器 */
-(MPMoviePlayerController *)movieplayer{

    if (!_movieplayer) {

        //设置播放器的属性
        NSURL *URL = [[NSBundle mainBundle]URLForResource:@"风景" withExtension:@".mp4"];
        _movieplayer = [[MPMoviePlayerController alloc]initWithContentURL:URL];
        _movieplayer.view.frame = self.view.bounds;
        _movieplayer.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

        //添加通知
        [self addNotify];
    }
    return _movieplayer;
}

- (void)viewDidLoad {
    [super viewDidLoad];

    [self.view addSubview:self.movieplayer.view];
    [self.movieplayer prepareToPlay];
    [self.movieplayer play];
}

//添加通知
-(void)addNotify{

    //注册播放完成的通知
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayBackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification
                                               object:_movieplayer];

    //注册播放状态改变的通知
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayBackStateChanged) name:MPMoviePlayerPlaybackStateDidChangeNotification
                                              object:_movieplayer];

    //注册全屏通知
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayDidEnterFullScreen) name:MPMoviePlayerDidEnterFullscreenNotification
                                            object:_movieplayer];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayDidExitFullScreen) name:MPMoviePlayerDidExitFullscreenNotification
                                               object:_movieplayer];

    //注册请求截屏的通知
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayerRequestThumbnailImage) name:MPMoviePlayerThumbnailImageRequestDidFinishNotification
                                               object:_movieplayer];
    //发送截图请求
    [self.movieplayer requestThumbnailImagesAtTimes:@[@(5.0f),@(10.0f)] timeOption:MPMovieTimeOptionNearestKeyFrame];
}

//截屏
-(void)moviePlayerRequestThumbnailImage{

    //获取图片
    UIImage *image = [self.movieplayer thumbnailImageAtTime:5.0f timeOption:MPMovieTimeOptionNearestKeyFrame];

    NSLog(@"%@",image);

    if ([self.delegate respondsToSelector:@selector(setImageWithThumbnailImage:)]) {

        [self.delegate setImageWithThumbnailImage:image];
    }
}

//播放完成
-(void)moviePlayBackDidFinish:(NSNotification *)notification{

    NSLog(@"播放完成");
}

//播放状态改变
-(void)moviePlayBackStateChanged{

    switch (self.movieplayer.playbackState) {
        case MPMoviePlaybackStateStopped:
            NSLog(@"播放停止");
            break;
        case MPMoviePlaybackStatePlaying:
            NSLog(@"播放中");
            break;
        case MPMoviePlaybackStatePaused:
            NSLog(@"播放暂停");
            break;
        case MPMoviePlaybackStateInterrupted:
            NSLog(@"播放中断");
            break;
        case MPMoviePlaybackStateSeekingForward:
            NSLog(@"快进播放");
            break;
        case MPMoviePlaybackStateSeekingBackward:
            NSLog(@"回退播放");
            break;
    }
}

//进入全屏
-(void)moviePlayDidEnterFullScreen{

    NSLog(@"进入全屏");
}

//离开全屏
-(void)moviePlayDidExitFullScreen{

    NSLog(@"离开全屏");

    //关闭播放器
    [self.movieplayer.view removeFromSuperview];
     self.movieplayer = nil;

    if ([self.delegate respondsToSelector:@selector(dismissPlayViewController)]) {

       [self.delegate dismissPlayViewController];
    }
    [[NSNotificationCenter defaultCenter]removeObserver:self];
}
@end

演示结果截图：

播放前：                                             播放中：

  

播放过程中一个指定时间点的视频截图

2、AVPlayer

AVPlayer既可以播放音乐又可以播放视频；使用AVPlayer不能直接显示视频，必须要加入AVPlayerLayer中，并添加到其他能显示的layer中。

//获取播放源的url
NSString *filePath = [[NSBundlemainBundle] pathForResource:@"backspace"ofType:@"mov"];
NSURL *sourceMovieURL = [NSURLfileURLWithPath:filePath];

//创建播放器
AVAsset *movieAsset= [AVURLAsset URLAssetWithURL:sourceMovieURL options:nil];
AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:movieAsset];
AVPlayer *player = [AVPlayer playerWithPlayerItem:playerItem];

//创建播放图层
AVPlayerLayer *playerLayer = [AVPlayerLayer playerLayerWithPlayer:player];
playerLayer.frame = self.view.layer.bounds;
playerLayer.videoGravity = AVLayerVideoGravityResizeAspect;
[self.view.layer addSublayer:playerLayer];

//开始播放
[player play];

3、AVPlayerViewcontroller

AVPlayerViewcontroller继承自UIViewController，一般适用于点击一个视频缩略图，modal出一个新的界面来进行播放的情况。

用法：

//创建播放器
AVPlayerViewController *player = [[AVPlayerViewController alloc]init];
player.player = [[AVPlayer alloc]initWithURL:movieUrl];

//模态出播放器
[self presentViewController:player animated:YES completion:nil];

4、ffmpeg-AVPlayer-for-iOS——强大的iOS视频播放框架

ffmpeg-avplayer-for-ios是一个微小但是强大的iOS视频播放框架，能够播放大多数的音频和视频格式文件（包括网络音频和视频流），没有格式转换的烦恼，不依赖VLC和SDL。支持播放1080P视频，但是建议只在iPad Air & iPhone 5s设备上播放1080P视频。

 

ffmpeg-avplayer-for-ios是专门针对iOS开发者编写的AVPlayer SDK，只需几行代码便可在应用中加入强大的视频播放器。

ffmpeg-avplayer-for-ios依赖于iOS OpenGL ES 2.0框架和基于LGPL协议开源的FFmpeg类库。

 

截图：

 

特性：

1、支持ARC；

2、支持armv7, armv7s, arm64, i386和x86-64；

3、支持播放本地文件；

4、支持Windows SMB/CIFS文件 (PRO version only)；

5、支持http, https和rtmp协议；

6、解析音频和视频持续时间、帧尺寸信息；

7、获取视频缩略图；

8、实时位&帧率和网络缓冲进度计算；

9、查询当前播放时间信息；

10、播放速度控制；

11、亮度,对比度,饱和度控制；

12、支持音频、视频播放背景；

13、支持全屏模式；

14、系统音量控制；

15、从指定的事件位置播放；

16、支持播放、暂停、停止、重播、快进、快退。

17、支持音频会话中断处理程序；

18、自定义字幕字体；

19、支持嵌入字幕格式；

20、支持多个音频、字幕流；

21、支持SRT, ASS, SSA, SMI格式；

 

Github托管地址：https://github.com/iMoreApps/ffmpeg-avplayer-for-ios