IOS 视频播放器 swift版
IOS 视频播放器 swift版
- 1. 使用第三方框架实现视频播放
-
- ijkplayer 实现视频播放
- 2. 使用IOS自带API实现视频播放
-
- AVPlayer播放视频
-
- AVPlayer简介
- AVPlayer 播放流程
- AVPlayer注意事项
- AVPlayer实现视频播放OC代码
- AVPlayer实现视频播放Swift代码
- 3. 使用FFmpeg自己解码播放
1. 使用第三方框架实现视频播放
ijkplayer 实现视频播放
- 点击这里下载 ijkplayer
2. 使用IOS自带API实现视频播放
AVPlayer播放视频
点击这里下载本篇博客Demo: kylVideoPlayer
AVPlayer简介
在iOS开发中，播放视频通常有两种方式，一种是使用MPMoviePlayerController（需要导入MediaPlayer.Framework），还有一种是使用AVPlayer。关于这两个类的区别可以参考这篇博客：AVPlayer和MPMoviePlayerController区别，简而言之就是MPMoviePlayerController使用更简单，功能不如AVPlayer强大，而AVPlayer使用稍微麻烦点，不过功能更加强大。
- 在开发中，单纯使用AVPlayer类是无法显示视频的，要将视频层添加至AVPlayerLayer中，这样才能将视频显示出来。
AVPlayer 播放流程
- AVPlayer播放视频主要代码如下：
NSURL *videoUrl = [NSURL URLWithString:@"http://www.jxvdy.com/file/upload/201405/05/18-24-58-42-627.mp4"];
self.playerItem = [AVPlayerItem playerItemWithURL:videoUrl];
[self.playerItem addObserver:self forKeyPath:@"status" options:NSKeyValueObservingOptionNew context:nil];// 监听status属性
[self.playerItem addObserver:self forKeyPath:@"loadedTimeRanges" options:NSKeyValueObservingOptionNew context:nil];// 监听loadedTimeRanges属性
self.player = [AVPlayer playerWithPlayerItem:self.playerItem];
[[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(moviePlayDidEnd:) name:AVPlayerItemDidPlayToEndTimeNotificationobject:self.playerItem];
-
即先将在线视频链接存放在videoUrl中，然后初始化playerItem，playerItem是管理资源的对象，他们的关系如下：
-
然后监听playerItem的status和loadedTimeRange，
当status等于AVPlayerStatusReadyToPlay时代表视频已经可以播放了，我们就可以调用play方法播放了。
loadedTimeRange属性代表已经缓冲的进度，监听此属性可以在UI中更新缓冲进度，也是很有用的一个属性。 -
最后添加一个通知，用于监听视频是否已经播放完毕，然后实现KVO的方法：
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
AVPlayerItem *playerItem = (AVPlayerItem *)object;
if ([keyPath isEqualToString:@"status"]) {
if ([playerItem status] == AVPlayerStatusReadyToPlay) {
NSLog(@"AVPlayerStatusReadyToPlay");
self.stateButton.enabled = YES;
CMTime duration = self.playerItem.duration;// 获取视频总长度
CGFloat totalSecond = playerItem.duration.value / playerItem.duration.timescale;// 转换成秒
_totalTime = [self convertTime:totalSecond];// 转换成播放时间
[self customVideoSlider:duration];// 自定义UISlider外观
NSLog(@"movie total duration:%f",CMTimeGetSeconds(duration));
[self monitoringPlayback:self.playerItem];// 监听播放状态
} else if ([playerItem status] == AVPlayerStatusFailed) {
NSLog(@"AVPlayerStatusFailed");
}
} else if ([keyPath isEqualToString:@"loadedTimeRanges"]) {
NSTimeInterval timeInterval = [self availableDuration];// 计算缓冲进度
NSLog(@"Time Interval:%f",timeInterval);
CMTime duration = self.playerItem.duration;
CGFloat totalDuration = CMTimeGetSeconds(duration);
[self.videoProgress setProgress:timeInterval / totalDuration animated:YES];
}
}
- (NSTimeInterval)availableDuration {
NSArray *loadedTimeRanges = [[self.playerView.player currentItem] loadedTimeRanges];
CMTimeRange timeRange = [loadedTimeRanges.firstObject CMTimeRangeValue];// 获取缓冲区域
float startSeconds = CMTimeGetSeconds(timeRange.start);
float durationSeconds = CMTimeGetSeconds(timeRange.duration);
NSTimeInterval result = startSeconds + durationSeconds;// 计算缓冲总进度
return result;
}
- (NSString *)convertTime:(CGFloat)second{
NSDate *d = [NSDate dateWithTimeIntervalSince1970:second];
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
if (second/3600 >= 1) {
[formatter setDateFormat:@"HH:mm:ss"];
} else {
[formatter setDateFormat:@"mm:ss"];
}
NSString *showtimeNew = [formatter stringFromDate:d];
return showtimeNew;
}
上面代码主要对status和loadedTimeRanges属性做出响应，status状态变为AVPlayerStatusReadyToPlay时，说明视频已经可以播放了，这时我们可以获取一些视频的信息，包含视频长度等，把播放按钮设备enabled，点击就可以调用play方法播放视频了。在AVPlayerStatusReadyToPlay的底部还有个monitoringPlayback方法：
/*
monitoringPlayback用于监听每秒的状态，
- (id)addPeriodicTimeObserverForInterval:(CMTime)interval queue:(dispatch_queue_t)queue usingBlock:(void (^)(CMTime time))block;
- 此方法就是关键，interval参数为响应的间隔时间，这里设为每秒都响应，queue是队列，传NULL代表在主线程执行。可以更新一个UI，比如进度条的当前时间等。
*/
- (void)monitoringPlayback:(AVPlayerItem *)playerItem {
self.playbackTimeObserver = [self.playerView.player addPeriodicTimeObserverForInterval:CMTimeMake(1, 1) queue:NULL usingBlock:^(CMTime time) {
CGFloat currentSecond = playerItem.currentTime.value/playerItem.currentTime.timescale;// 计算当前在第几秒
[self updateVideoSlider:currentSecond];
NSString *timeString = [self convertTime:currentSecond];
self.timeLabel.text = [NSString stringWithFormat:@"%@/%@",timeString,_totalTime];
}];
}
AVPlayer注意事项
- 需要区分两个枚举类型：
/* AVPlayerItemStatus是代表当前播放资源item 的状态
（可以理解成这url链接or视频文件。。。可以播放成功/失败）*/
typedef NS_ENUM(NSInteger, AVPlayerItemStatus) {
AVPlayerItemStatusUnknown,
AVPlayerItemStatusReadyToPlay,
AVPlayerItemStatusFailed
};
/*
AVPlayerStatus是代表当前播放器的状态
*/
typedef NS_ENUM(NSInteger, AVPlayerStatus) {
AVPlayerStatusUnknown,
AVPlayerStatusReadyToPlay,
AVPlayerStatusFailed
};
- CMTime 结构体
CMTimeMake(1, 1)，其实就是1s调用一下block，
打个比方CMTimeMake(a, b)就是a/b秒之后调用一下block
更详细的理解CMTime可以参考这篇博客：视频合成中CMTime的理解 - 拖动slider 播放跳跃播放，要使用AVPlayer 对象的seekToTime:方法。
AVPlayer实现视频播放OC代码
主要有两个类：
VideoView， AVViewController
- VideoView类实现：
- 头文件
#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>
@protocol VideoSomeDelegate <NSObject>
@required
- (void)flushCurrentTime:(NSString *)timeString sliderValue:(float)sliderValue;
@end
@interface VideoView : UIView
@property (nonatomic ,strong) NSString *playerUrl;
@property (nonatomic ,readonly) AVPlayerItem *item;
@property (nonatomic ,readonly) AVPlayerLayer *playerLayer;
@property (nonatomic ,readonly) AVPlayer *player;
@property (nonatomic ,weak) id <VideoSomeDelegate> someDelegate;
- (id)initWithUrl:(NSString *)path delegate:(id<VideoSomeDelegate>)delegate;
@end
@interface VideoView (Guester)
- (void)addSwipeView;
@end
- 实现文件：
#import "VideoView.h"
#import <AVFoundation/AVFoundation.h>
#import <MediaPlayer/MPVolumeView.h>
typedef enum {
ChangeNone,
ChangeVoice,
ChangeLigth,
ChangeCMTime
}Change;
@interface VideoView ()
@property (nonatomic ,readwrite) AVPlayerItem *item;
@property (nonatomic ,readwrite) AVPlayerLayer *playerLayer;
@property (nonatomic ,readwrite) AVPlayer *player;
@property (nonatomic ,strong) id timeObser;
@property (nonatomic ,assign) float videoLength;
@property (nonatomic ,assign) Change changeKind;
@property (nonatomic ,assign) CGPoint lastPoint;
//Gesture
@property (nonatomic ,strong) UIPanGestureRecognizer *panGesture;
@property (nonatomic ,strong) MPVolumeView *volumeView;
@property (nonatomic ,weak) UISlider *volumeSlider;
@property (nonatomic ,strong) UIView *darkView;
@end
@implementation VideoView
- (id)initWithUrl:(NSString *)path delegate:(id<VideoSomeDelegate>)delegate {
if (self = [super init]) {
_playerUrl = path;
_someDelegate = delegate;
[self setBackgroundColor:[UIColor blackColor]];
[self setUpPlayer];
[self addSwipeView];
}
return self;
}
- (void)setUpPlayer {
NSURL *url = [NSURL URLWithString:_playerUrl];
_item = [[AVPlayerItem alloc] initWithURL:url];
_player = [AVPlayer playerWithPlayerItem:_item];
_playerLayer = [AVPlayerLayer playerLayerWithPlayer:_player];
_playerLayer.videoGravity = AVLayerVideoGravityResizeAspect;
[self.layer addSublayer:_playerLayer];
[self addVideoKVO];
[self addVideoTimerObserver];
[self addVideoNotic];
}
#pragma mark - KVO
- (void)addVideoKVO
{
//KVO
[_item addObserver:self forKeyPath:@"status" options:NSKeyValueObservingOptionNew context:nil];
[_item addObserver:self forKeyPath:@"loadedTimeRanges" options:NSKeyValueObservingOptionNew context:nil];
[_item addObserver:self forKeyPath:@"playbackBufferEmpty" options:NSKeyValueObservingOptionNew context:nil];
}
- (void)removeVideoKVO {
[_item removeObserver:self forKeyPath:@"status"];
[_item removeObserver:self forKeyPath:@"loadedTimeRanges"];
[_item removeObserver:self forKeyPath:@"playbackBufferEmpty"];
}
- (void)observeValueForKeyPath:(nullable NSString *)keyPath ofObject:(nullable id)object change:(nullable NSDictionary<NSString*, id> *)change context:(nullable void *)context {
if ([keyPath isEqualToString:@"status"]) {
AVPlayerItemStatus status = _item.status;
switch (status) {
case AVPlayerItemStatusReadyToPlay:
{
[_player play];
_videoLength = floor(_item.asset.duration.value * 1.0/ _item.asset.duration.timescale);
}
break;
case AVPlayerItemStatusUnknown:
{
NSLog(@"AVPlayerItemStatusUnknown");
}
break;
case AVPlayerItemStatusFailed:
{
NSLog(@"AVPlayerItemStatusFailed");
NSLog(@"%@",_item.error);
}
break;
default:
break;
}
} else if ([keyPath isEqualToString:@"loadedTimeRanges"]) {
} else if ([keyPath isEqualToString:@"playbackBufferEmpty"]) {
}
}
#pragma mark - Notic
- (void)addVideoNotic {
//Notification
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(movieToEnd:) name:AVPlayerItemDidPlayToEndTimeNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(movieJumped:) name:AVPlayerItemTimeJumpedNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(movieStalle:) name:AVPlayerItemPlaybackStalledNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(backGroundPauseMoive) name:UIApplicationDidEnterBackgroundNotification object:nil];
}
- (void)removeVideoNotic {
[[NSNotificationCenter defaultCenter] removeObserver:self name:AVPlayerItemDidPlayToEndTimeNotification object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:AVPlayerItemPlaybackStalledNotification object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:AVPlayerItemTimeJumpedNotification object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
- (void)movieToEnd:(NSNotification *)notic {
NSLog(@"%@",NSStringFromSelector(_cmd));
}
- (void)movieJumped:(NSNotification *)notic {
NSLog(@"%@",NSStringFromSelector(_cmd));
}
- (void)movieStalle:(NSNotification *)notic {
NSLog(@"%@",NSStringFromSelector(_cmd));
}
- (void)backGroundPauseMoive {
NSLog(@"%@",NSStringFromSelector(_cmd));
}
#pragma mark - TimerObserver
- (void)addVideoTimerObserver {
__weak typeof (self)self_ = self;
_timeObser = [_player addPeriodicTimeObserverForInterval:CMTimeMake(1, 1) queue:NULL usingBlock:^(CMTime time) {
float currentTimeValue = time.value*1.0/time.timescale/self_.videoLength;
NSString *currentString = [self_ getStringFromCMTime:time];
if ([self_.someDelegate respondsToSelector:@selector(flushCurrentTime:sliderValue:)]) {
[self_.someDelegate flushCurrentTime:currentString sliderValue:currentTimeValue];
} else {
NSLog(@"no response");
}
NSLog(@"%@",self_.someDelegate);
}];
}
- (void)removeVideoTimerObserver {
NSLog(@"%@",NSStringFromSelector(_cmd));
[_player removeTimeObserver:_timeObser];
}
#pragma mark - Utils
- (NSString *)getStringFromCMTime:(CMTime)time
{
float currentTimeValue = (CGFloat)time.value/time.timescale;//得到当前的播放时
NSDate * currentDate = [NSDate dateWithTimeIntervalSince1970:currentTimeValue];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSInteger unitFlags = NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond ;
NSDateComponents *components = [calendar components:unitFlags fromDate:currentDate];
if (currentTimeValue >= 3600 )
{
return [NSString stringWithFormat:@"%ld:%ld:%ld",components.hour,components.minute,components.second];
}
else
{
return [NSString stringWithFormat:@"%ld:%ld",components.minute,components.second];
}
}
- (NSString *)getVideoLengthFromTimeLength:(float)timeLength
{
NSDate * date = [NSDate dateWithTimeIntervalSince1970:timeLength];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSInteger unitFlags = NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond ;
NSDateComponents *components = [calendar components:unitFlags fromDate:date];
if (timeLength >= 3600 )
{
return [NSString stringWithFormat:@"%ld:%ld:%ld",components.hour,components.minute,components.second];
}
else
{
return [NSString stringWithFormat:@"%ld:%ld",components.minute,components.second];
}
}
- (void)layoutSubviews {
[super layoutSubviews];
_playerLayer.frame = self.bounds;
}
#pragma mark - release
- (void)dealloc {
NSLog(@"%@",NSStringFromSelector(_cmd));
[self removeVideoTimerObserver];
[self removeVideoNotic];
[self removeVideoKVO];
}
@end
#pragma mark - VideoView (Guester)
@implementation VideoView (Guester)
- (void)addSwipeView {
_panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(swipeAction:)];
[self addGestureRecognizer:_panGesture];
[self setUpDarkView];
}
- (void)setUpDarkView {
_darkView = [[UIView alloc] init];
[_darkView setTranslatesAutoresizingMaskIntoConstraints:NO];
[_darkView setBackgroundColor:[UIColor blackColor]];
_darkView.alpha = 0.0;
[self addSubview:_darkView];
NSMutableArray *darkArray = [NSMutableArray array];
[darkArray addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[_darkView]|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(_darkView)]];
[darkArray addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[_darkView]|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(_darkView)]];
[self addConstraints:darkArray];
}
- (void)swipeAction:(UISwipeGestureRecognizer *)gesture {
switch (gesture.state) {
case UIGestureRecognizerStateBegan:
{
_changeKind = ChangeNone;
_lastPoint = [gesture locationInView:self];
}
break;
case UIGestureRecognizerStateChanged:
{
[self getChangeKindValue:[gesture locationInView:self]];
}
break;
case UIGestureRecognizerStateEnded:
{
if (_changeKind == ChangeCMTime) {
[self changeEndForCMTime:[gesture locationInView:self]];
}
_changeKind = ChangeNone;
_lastPoint = CGPointZero;
}
default:
break;
}
}
- (void)getChangeKindValue:(CGPoint)pointNow {
switch (_changeKind) {
case ChangeNone:
{
[self changeForNone:pointNow];
}
break;
case ChangeCMTime:
{
[self changeForCMTime:pointNow];
}
break;
case ChangeLigth:
{
[self changeForLigth:pointNow];
}
break;
case ChangeVoice:
{
[self changeForVoice:pointNow];
}
break;
default:
break;
}
}
- (void)changeForNone:(CGPoint) pointNow {
if (fabs(pointNow.x - _lastPoint.x) > fabs(pointNow.y - _lastPoint.y)) {
_changeKind = ChangeCMTime;
} else {
float halfWight = self.bounds.size.width / 2;
if (_lastPoint.x < halfWight) {
_changeKind = ChangeLigth;
} else {
_changeKind = ChangeVoice;
}
_lastPoint = pointNow;
}
}
- (void)changeForCMTime:(CGPoint) pointNow {
float number = fabs(pointNow.x - _lastPoint.x);
if (pointNow.x > _lastPoint.x && number > 10) {
float currentTime = _player.currentTime.value / _player.currentTime.timescale;
float tobeTime = currentTime + number*0.5;
NSLog(@"forwart to changeTo time:%f",tobeTime);
} else if (pointNow.x < _lastPoint.x && number > 10) {
float currentTime = _player.currentTime.value / _player.currentTime.timescale;
float tobeTime = currentTime - number*0.5;
NSLog(@"back to time:%f",tobeTime);
}
}
- (void)changeForLigth:(CGPoint) pointNow {
float number = fabs(pointNow.y - _lastPoint.y);
if (pointNow.y > _lastPoint.y && number > 10) {
_lastPoint = pointNow;
[self minLigth];
} else if (pointNow.y < _lastPoint.y && number > 10) {
_lastPoint = pointNow;
[self upperLigth];
}
}
- (void)changeForVoice:(CGPoint)pointNow {
float number = fabs(pointNow.y - _lastPoint.y);
if (pointNow.y > _lastPoint.y && number > 10) {
_lastPoint = pointNow;
[self minVolume];
} else if (pointNow.y < _lastPoint.y && number > 10) {
_lastPoint = pointNow;
[self upperVolume];
}
}
- (void)changeEndForCMTime:(CGPoint)pointNow {
if (pointNow.x > _lastPoint.x ) {
NSLog(@"end for CMTime Upper");
float length = fabs(pointNow.x - _lastPoint.x);
[self upperCMTime:length];
} else {
NSLog(@"end for CMTime min");
float length = fabs(pointNow.x - _lastPoint.x);
[self mineCMTime:length];
}
}
- (void)upperLigth {
if (_darkView.alpha >= 0.1) {
_darkView.alpha = _darkView.alpha - 0.1;
}
}
- (void)minLigth {
if (_darkView.alpha <= 1.0) {
_darkView.alpha = _darkView.alpha + 0.1;
}
}
- (void)upperVolume {
if (self.volumeSlider.value <= 1.0) {
self.volumeSlider.value = self.volumeSlider.value + 0.1 ;
}
}
- (void)minVolume {
if (self.volumeSlider.value >= 0.0) {
self.volumeSlider.value = self.volumeSlider.value - 0.1 ;
}
}
#pragma mark -CMTIME
- (void)upperCMTime:(float)length {
float currentTime = _player.currentTime.value / _player.currentTime.timescale;
float tobeTime = currentTime + length*0.5;
if (tobeTime > _videoLength) {
[_player seekToTime:_item.asset.duration];
} else {
[_player seekToTime:CMTimeMake(tobeTime, 1)];
}
}
- (void)mineCMTime:(float)length {
float currentTime = _player.currentTime.value / _player.currentTime.timescale;
float tobeTime = currentTime - length*0.5;
if (tobeTime <= 0) {
[_player seekToTime:kCMTimeZero];
} else {
[_player seekToTime:CMTimeMake(tobeTime, 1)];
}
}
- (MPVolumeView *)volumeView {
if (_volumeView == nil) {
_volumeView = [[MPVolumeView alloc] init];
_volumeView.hidden = YES;
[self addSubview:_volumeView];
}
return _volumeView;
}
- (UISlider *)volumeSlider {
if (_volumeSlider== nil) {
NSLog(@"%@",[self.volumeView subviews]);
for (UIView *subView in [self.volumeView subviews]) {
if ([subView.class.description isEqualToString:@"MPVolumeSlider"]) {
_volumeSlider = (UISlider*)subView;
break;
}
}
}
return _volumeSlider;
}
@end
- AVViewController类实现：
#import <UIKit/UIKit.h>
@interface AVViewController : UIViewController
@end
#import "AVViewController.h"
#import "VideoView.h"
@interface AVViewController () <VideoSomeDelegate>
@property (nonatomic ,strong) VideoView *videoView;
@property (nonatomic ,strong) NSMutableArray<NSLayoutConstraint *> *array;
@property (nonatomic ,strong) UISlider *videoSlider;
@property (nonatomic ,strong) NSMutableArray<NSLayoutConstraint *> *sliderArray;
@end
@implementation AVViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self.view setBackgroundColor:[UIColor whiteColor]];
[self initVideoView];
}
- (void)initVideoView {
//NSString *path = [[NSBundle mainBundle] pathForResource:@"some" ofType:@"mp4"];//这个时播放本地的，播放本地的时候还需要改VideoView.m中的代码
NSString *path = @"http://static.tripbe.com/videofiles/20121214/9533522808.f4v.mp4";
_videoView = [[VideoView alloc] initWithUrl:path delegate:self];
_videoView.someDelegate = self;
[_videoView setTranslatesAutoresizingMaskIntoConstraints:NO];
[self.view addSubview:_videoView];
[self initVideoSlider];
if (self.traitCollection.verticalSizeClass == UIUserInterfaceSizeClassCompact) {
[self installLandspace];
} else {
[self installVertical];
}
}
- (void)installVertical {
if (_array != nil) {
[self.view removeConstraints:_array];
[_array removeAllObjects];
[self.view removeConstraints:_sliderArray];
[_sliderArray removeAllObjects];
} else {
_array = [NSMutableArray array];
_sliderArray = [NSMutableArray array];
}
id topGuide = self.topLayoutGuide;
NSDictionary *dic = @{
@"top":@100,@"height":@180,@"edge":@20,@"space":@80};
[_array addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[_videoView]|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(_videoView)]];
[_array addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-(edge)-[_videoSlider]-(edge)-|" options:0 metrics:dic views:NSDictionaryOfVariableBindings(_videoSlider)]];
[_array addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[topGuide]-(top)-[_videoView(==height)]-(space)-[_videoSlider]" options:0 metrics:dic views:NSDictionaryOfVariableBindings(_videoView,topGuide,_videoSlider)]];
[self.view addConstraints:_array];
}
- (void)installLandspace {
if (_array != nil) {
[self.view removeConstraints:_array];
[_array removeAllObjects];
[self.view removeConstraints:_sliderArray];
[_sliderArray removeAllObjects];
} else {
_array = [NSMutableArray array];
_sliderArray = [NSMutableArray array];
}
id topGuide = self.topLayoutGuide;
NSDictionary *dic = @{
@"edge":@20,@"space":@30};
[_array addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[_videoView]|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(_videoView)]];
[_array addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[topGuide][_videoView]|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(_videoView,topGuide)]];
[self.view addConstraints:_array];
[_sliderArray addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-(edge)-[_videoSlider]-(edge)-|" options:0 metrics:dic views:NSDictionaryOfVariableBindings(_videoSlider)]];
[_sliderArray addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[_videoSlider]-(space)-|" options:0 metrics:dic views:NSDictionaryOfVariableBindings(_videoSlider)]];
[self.view addConstraints:_sliderArray];
}
- (void)initVideoSlider {
_videoSlider = [[UISlider alloc] init];
[_videoSlider setTranslatesAutoresizingMaskIntoConstraints:NO];
[_videoSlider setThumbImage:[UIImage imageNamed:@"sliderButton"] forState:UIControlStateNormal];
[self.view addSubview:_videoSlider];
}
- (void)willTransitionToTraitCollection:(UITraitCollection *)newCollection withTransitionCoordinator:(id <UIViewControllerTransitionCoordinator>)coordinator {
[super willTransitionToTraitCollection:newCollection withTransitionCoordinator:coordinator];
[coordinator animateAlongsideTransition:^(id <UIViewControllerTransitionCoordinatorContext> context) {
if (newCollection.verticalSizeClass == UIUserInterfaceSizeClassCompact) {
[self installLandspace];
} else {
[self installVertical];
}
[self.view setNeedsLayout];
} completion:nil];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
#pragma mark -
- (void)flushCurrentTime:(NSString *)timeString sliderValue:(float)sliderValue {
_videoSlider.value = sliderValue;
}
@end
AVPlayer实现视频播放Swift代码
主要文件就一个：
//
// kylKYLPlayer.swift
// kylVideoKYLPlayer
//
// Created by yulu kong on 2019/8/10.
// Copyright © 2019 yulu kong. All rights reserved.
//
import UIKit
import Foundation
import AVFoundation
import CoreGraphics
// MARK: - types
/// Video fill mode options for `KYLPlayer.fillMode`.
///
/// - resize: Stretch to fill.
/// - resizeAspectFill: Preserve aspect ratio, filling bounds.
/// - resizeAspectFit: Preserve aspect ratio, fill within bounds.
public enum KYLPlayerFillMode {
case resize
case resizeAspectFill
case resizeAspectFit // default
public var avFoundationType: String {
get {
switch self {
case .resize:
return AVLayerVideoGravity.resize.rawValue
case .resizeAspectFill:
return AVLayerVideoGravity.resizeAspectFill.rawValue
case .resizeAspectFit:
return AVLayerVideoGravity.resizeAspect.rawValue
}
}
}
}
/// Asset playback states.
public enum PlaybackState: Int, CustomStringConvertible {
case stopped = 0
case playing
case paused
case failed
public var description: String {
get {
switch self {
case .stopped:
return "Stopped"
case .playing:
return "Playing"
case .failed:
return "Failed"
case .paused:
return "Paused"
}
}
}
}
/// Asset buffering states.
public enum BufferingState: Int, CustomStringConvertible {
case unknown = 0
case ready
case delayed
public var description: String {
get {
switch self {
case .unknown:
return "Unknown"
case .ready:
return "Ready"
case .delayed:
return "Delayed"
}
}
}
}
// MARK: - KYLPlayerDelegate
/// KYLPlayer delegate protocol
public protocol KYLPlayerDelegate: NSObjectProtocol {
func KYLPlayerReady(_ KYLPlayer: KYLPlayer)
func KYLPlayerPlaybackStateDidChange(_ KYLPlayer: KYLPlayer)
func KYLPlayerBufferingStateDidChange(_ KYLPlayer: KYLPlayer)
// This is the time in seconds that the video has been buffered.
// If implementing a UIProgressView, user this value / KYLPlayer.maximumDuration to set progress.
func KYLPlayerBufferTimeDidChange(_ bufferTime: Double)
}
/// KYLPlayer playback protocol
public protocol KYLPlayerPlaybackDelegate: NSObjectProtocol {
func KYLPlayerCurrentTimeDidChange(_ KYLPlayer: KYLPlayer)
func KYLPlayerPlaybackWillStartFromBeginning(_ KYLPlayer: KYLPlayer)
func KYLPlayerPlaybackDidEnd(_ KYLPlayer: KYLPlayer)
func KYLPlayerPlaybackWillLoop(_ KYLPlayer: KYLPlayer)
}
// MARK: - KYLPlayer
/// ▶️ KYLPlayer, simple way to play and stream media
open class KYLPlayer: UIViewController {
/// KYLPlayer delegate.
open weak var KYLPlayerDelegate: KYLPlayerDelegate?
/// Playback delegate.
open weak var playbackDelegate: KYLPlayerPlaybackDelegate?
// configuration
/// Local or remote URL for the file asset to be played.
///
/// - Parameter url: URL of the asset.
open var url: URL? {
didSet {
setup(url: url)
}
}
/// Determines if the video should autoplay when a url is set
///
/// - Parameter bool: defaults to true
open var autoplay: Bool = true
/// For setting up with AVAsset instead of URL
/// Note: Resets URL (cannot set both)
open var asset: AVAsset? {
get {
return _asset }
set {
_ = newValue.map {
setupAsset($0) } }
}
/// Mutes audio playback when true.
open var muted: Bool {
get {
return self._avKYLPlayer.isMuted
}
set {
self._avKYLPlayer.isMuted = newValue
}
}
/// Volume for the KYLPlayer, ranging from 0.0 to 1.0 on a linear scale.
open var volume: Float {
get {
return self._avKYLPlayer.volume
}
set {
self._avKYLPlayer.volume = newValue
}
}
/// Specifies how the video is displayed within a KYLPlayer layer’s bounds.
/// The default value is `AVLayerVideoGravityResizeAspect`. See `FillMode` enum.
open var fillMode: String {
get {
return self._KYLPlayerView.fillMode
}
set {
self._KYLPlayerView.fillMode = newValue
}
}
/// Pauses playback automatically when resigning active.
open var playbackPausesWhenResigningActive: Bool = true
/// Pauses playback automatically when backgrounded.
open var playbackPausesWhenBackgrounded: Bool = true
/// Resumes playback when became active.
open var playbackResumesWhenBecameActive: Bool = true
/// Resumes playback when entering foreground.
open var playbackResumesWhenEnteringForeground: Bool = true
// state
/// Playback automatically loops continuously when true.
open var playbackLoops: Bool {
get {
return self._avKYLPlayer.actionAtItemEnd == .none
}
set {
if newValue {
self._avKYLPlayer.actionAtItemEnd = .none
} else {
self._avKYLPlayer.actionAtItemEnd = .pause
}
}
}
/// Playback freezes on last frame frame at end when true.
open var playbackFreezesAtEnd: Bool = false
/// Current playback state of the KYLPlayer.
open var playbackState: PlaybackState = .stopped {
didSet {
if playbackState != oldValue || !playbackEdgeTriggered {
self.KYLPlayerDelegate?.KYLPlayerPlaybackStateDidChange(self)
}
}
}
/// Current buffering state of the KYLPlayer.
open var bufferingState: BufferingState = .unknown {
didSet {
if bufferingState != oldValue || !playbackEdgeTriggered {
self.KYLPlayerDelegate?.KYLPlayerBufferingStateDidChange(self)
}
}
}
/// Playback buffering size in seconds.
open var bufferSize: Double = 10
/// Playback is not automatically triggered from state changes when true.
open var playbackEdgeTriggered: Bool = true
/// Maximum duration of playback.
open var maximumDuration: TimeInterval {
get {
if let KYLPlayerItem = self._KYLPlayerItem {
return CMTimeGetSeconds(KYLPlayerItem.duration)
} else {
return CMTimeGetSeconds(CMTime.indefinite)
}
}
}
/// Media playback's current time.
open var currentTime: TimeInterval {
get {
if let KYLPlayerItem = self._KYLPlayerItem {
return CMTimeGetSeconds(KYLPlayerItem.currentTime())
} else {
return CMTimeGetSeconds(CMTime.indefinite)
}
}
}
/// The natural dimensions of the media.
open var naturalSize: CGSize {
get {
if let KYLPlayerItem = self._KYLPlayerItem,
let track = KYLPlayerItem.asset.tracks(withMediaType: .video).first {
let size = track.naturalSize.applying(track.preferredTransform)
return CGSize(width: fabs(size.width), height: fabs(size.height))
} else {
return CGSize.zero
}
}
}
/// KYLPlayer view's initial background color.
open var layerBackgroundColor: UIColor? {
get {
guard let backgroundColor = self._KYLPlayerView.playerLayer.backgroundColor
else {
return nil
}
return UIColor(cgColor: backgroundColor)
}
set {
self._KYLPlayerView.playerLayer.backgroundColor = newValue?.cgColor
}
}
// MARK: - private instance vars
internal var _asset: AVAsset? {
didSet {
if let _ = self._asset {
// self.setupKYLPlayerItem(nil)
}
}
}
internal var _avKYLPlayer: AVPlayer
internal var _KYLPlayerItem: AVPlayerItem?
internal var _timeObserver: Any?
internal var _KYLPlayerView: KYLPlayerView = KYLPlayerView(frame: .zero)
internal var _seekTimeRequested: CMTime?
internal var _lastBufferTime: Double = 0
//Boolean that determines if the user or calling coded has trigged autoplay manually.
internal var _hasAutoplayActivated: Bool = true
// MARK: - object lifecycle
public convenience init() {
self.init(nibName: nil, bundle: nil)
}
public required init?(coder aDecoder: NSCoder) {
self._avKYLPlayer = AVPlayer()
self._avKYLPlayer.actionAtItemEnd = .pause
self._timeObserver = nil
super.init(coder: aDecoder)
}
public override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
self._avKYLPlayer = AVPlayer()
self._avKYLPlayer.actionAtItemEnd = .pause
self._timeObserver = nil
super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
}
deinit {
self._avKYLPlayer.pause()
self.setupKYLPlayerItem(nil)
self.removeKYLPlayerObservers()
self.KYLPlayerDelegate = nil
self.removeApplicationObservers()
self.playbackDelegate = nil
self.removeKYLPlayerLayerObservers()
self._KYLPlayerView.player = nil
}
// MARK: - view lifecycle
open override func loadView() {
self._KYLPlayerView.playerLayer.isHidden = true
self.view = self._KYLPlayerView
}
open override func viewDidLoad() {
super.viewDidLoad()
if let url = url {
setup(url: url)
} else if let asset = asset {
setupAsset(asset)
}
self.addKYLPlayerLayerObservers()
self.addKYLPlayerObservers()
self.addApplicationObservers()
}
open override func viewDidDisappear(_ animated: Bool) {
super.viewDidDisappear(animated)
if self.playbackState == .playing {
self.pause()
}
}
// MARK: - Playback funcs
/// Begins playback of the media from the beginning.
open func playFromBeginning() {
self.playbackDelegate?.KYLPlayerPlaybackWillStartFromBeginning(self)
self._avKYLPlayer.seek(to: CMTime.zero)
self.playFromCurrentTime()
}
/// Begins playback of the media from the current time.
open func playFromCurrentTime() {
if !autoplay {
//external call to this method with auto play off. activate it before calling play
_hasAutoplayActivated = true
}
play()
}
fileprivate func play() {
if autoplay || _hasAutoplayActivated {
self.playbackState = .playing
self._avKYLPlayer.play()
}
}
/// Pauses playback of the media.
open func pause() {
if self.playbackState != .playing {
return
}
self._avKYLPlayer.pause()
self.playbackState = .paused
}
/// Stops playback of the media.
open func stop() {
if self.playbackState == .stopped {
return
}
self._avKYLPlayer.pause()
self.playbackState = .stopped
self.playbackDelegate?.KYLPlayerPlaybackDidEnd(self)
}
/// Updates playback to the specified time.
///
/// - Parameters:
/// - time: The time to switch to move the playback.
/// - completionHandler: Call block handler after seeking/
open func seek(to time: CMTime, completionHandler: ((Bool) -> Swift.Void)? = nil) {
if let KYLPlayerItem = self._KYLPlayerItem {
return KYLPlayerItem.seek(to: time, completionHandler: completionHandler)
} else {
_seekTimeRequested = time
}
}
/// Updates the playback time to the specified time bound.
///
/// - Parameters:
/// - time: The time to switch to move the playback.
/// - toleranceBefore: The tolerance allowed before time.
/// - toleranceAfter: The tolerance allowed after time.
/// - completionHandler: call block handler after seeking
open func seekToTime(to time: CMTime, toleranceBefore: CMTime, toleranceAfter: CMTime, completionHandler: ((Bool) -> Swift.Void)? = nil) {
if let KYLPlayerItem = self._KYLPlayerItem {
return KYLPlayerItem.seek(to: time, toleranceBefore: toleranceBefore, toleranceAfter: toleranceAfter, completionHandler: completionHandler)
}
}
/// Captures a snapshot of the current KYLPlayer view.
///
/// - Returns: A UIImage of the KYLPlayer view.
open func takeSnapshot() -> UIImage {
UIGraphicsBeginImageContextWithOptions(self._KYLPlayerView.frame.size, false, UIScreen.main.scale)
self._KYLPlayerView.drawHierarchy(in: self._KYLPlayerView.bounds, afterScreenUpdates: true)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return image!
}
/// Return the av KYLPlayer layer for consumption by
/// things such as Picture in Picture
open func KYLPlayerLayer() -> AVPlayerLayer? {
return self._KYLPlayerView.playerLayer
}
}
// MARK: - loading funcs
extension KYLPlayer {
fileprivate func setup(url: URL?) {
guard isViewLoaded else {
return }
// ensure everything is reset beforehand
if self.playbackState == .playing {
self.pause()
}
//Reset autoplay flag since a new url is set.
_hasAutoplayActivated = false
if autoplay {
playbackState = .playing
} else {
playbackState = .stopped
}
// self.setupKYLPlayerItem(nil)
if let url = url {
let asset = AVURLAsset(url: url, options: .none)
self.setupAsset(asset)
}
}
fileprivate func setupAsset(_ asset: AVAsset) {
guard isViewLoaded else {
return }
if self.playbackState == .playing {
self.pause()
}
self.bufferingState = .unknown
self._asset = asset
let keys = [KYLPlayerTracksKey, KYLPlayerPlayableKey, KYLPlayerDurationKey]
self._asset?.loadValuesAsynchronously(forKeys: keys, completionHandler: {
() -> Void in
for key in keys {
var error: NSError? = nil
let status = self._asset?.statusOfValue(forKey: key, error:&error)
if status == .failed {
self.playbackState = .failed
return
}
}
if let asset = self._asset {
if !asset.isPlayable {
self.playbackState = .failed
return
}
let KYLPlayerItem = AVPlayerItem(asset:asset)
self.setupKYLPlayerItem(KYLPlayerItem)
}
})
}
fileprivate func setupKYLPlayerItem(_ KYLPlayerItem: AVPlayerItem?) {
self._KYLPlayerItem?.removeObserver(self, forKeyPath: KYLPlayerFullBufferKey, context: &KYLPlayerItemObserverContext)
self._KYLPlayerItem?.removeObserver(self, forKeyPath: KYLPlayerEmptyBufferKey, context: &KYLPlayerItemObserverContext)
self._KYLPlayerItem?.removeObserver(self, forKeyPath: KYLPlayerKeepUpKey, context: &KYLPlayerItemObserverContext)
self._KYLPlayerItem?.removeObserver(self, forKeyPath: KYLPlayerStatusKey, context: &KYLPlayerItemObserverContext)
self._KYLPlayerItem?.removeObserver(self, forKeyPath: KYLPlayerLoadedTimeRangesKey, context: &KYLPlayerItemObserverContext)
if let currentKYLPlayerItem = self._KYLPlayerItem {
NotificationCenter.default.removeObserver(self, name: .AVPlayerItemDidPlayToEndTime, object: currentKYLPlayerItem)
NotificationCenter.default.removeObserver(self, name: .AVPlayerItemFailedToPlayToEndTime, object: currentKYLPlayerItem)
NotificationCenter.default.removeObserver(self, name: .AVPlayerItemPlaybackStalled, object: currentKYLPlayerItem)
NotificationCenter.default.removeObserver(self, name: .AVPlayerItemTimeJumped, object: currentKYLPlayerItem)
NotificationCenter.default.removeObserver(self, name: .AVPlayerItemNewAccessLogEntry, object: currentKYLPlayerItem)
NotificationCenter.default.removeObserver(self, name: .AVPlayerItemNewErrorLogEntry, object: currentKYLPlayerItem)
}
self._KYLPlayerItem = KYLPlayerItem
if let seek = _seekTimeRequested, self._KYLPlayerItem != nil {
_seekTimeRequested = nil
self.seek(to: seek)
}
self._KYLPlayerItem?.addObserver(self, forKeyPath: KYLPlayerEmptyBufferKey, options: [.new, .old], context: &KYLPlayerItemObserverContext)
self._KYLPlayerItem?.addObserver(self, forKeyPath: KYLPlayerFullBufferKey, options: [.new, .old], context: &KYLPlayerItemObserverContext)
self._KYLPlayerItem?.addObserver(self, forKeyPath: KYLPlayerKeepUpKey, options: [.new, .old], context: &KYLPlayerItemObserverContext)
self._KYLPlayerItem?.addObserver(self, forKeyPath: KYLPlayerStatusKey, options: [.new, .old], context: &KYLPlayerItemObserverContext)
self._KYLPlayerItem?.addObserver(self, forKeyPath: KYLPlayerLoadedTimeRangesKey, options: [.new, .old], context: &KYLPlayerItemObserverContext)
if let updatedKYLPlayerItem = self._KYLPlayerItem {
NotificationCenter.default.addObserver(self, selector: #selector(KYLPlayerItemDidPlayToEndTime(_:)), name: .AVPlayerItemDidPlayToEndTime, object: updatedKYLPlayerItem)
NotificationCenter.default.addObserver(self, selector: #selector(KYLPlayerItemFailedToPlayToEndTime(_:)), name: .AVPlayerItemFailedToPlayToEndTime, object: updatedKYLPlayerItem)
NotificationCenter.default.addObserver(self, selector: #selector(KYLPlayerItemPlaybackStalled(_:)), name: .AVPlayerItemPlaybackStalled, object: updatedKYLPlayerItem)
NotificationCenter.default.addObserver(self, selector: #selector(KYLPlayerItemTimeJumped(_:)), name: .AVPlayerItemTimeJumped, object: updatedKYLPlayerItem)
NotificationCenter.default.addObserver(self, selector: #selector(KYLPlayerItemNewAccessLogEntry(_:)), name: .AVPlayerItemNewAccessLogEntry, object: updatedKYLPlayerItem)
NotificationCenter.default.addObserver(self, selector: #selector(KYLPlayerItemNewErrorLogEntry(_:)), name: .AVPlayerItemNewErrorLogEntry, object: updatedKYLPlayerItem)
}
self._avKYLPlayer.replaceCurrentItem(with: self._KYLPlayerItem)
// update new KYLPlayerItem settings
if self.playbackLoops {
self._avKYLPlayer.actionAtItemEnd = .none
} else {
self._avKYLPlayer.actionAtItemEnd = .pause
}
}
}
// MARK: - NSNotifications
extension KYLPlayer {
// MARK: - AVKYLPlayerItem
@objc internal func KYLPlayerItemDidPlayToEndTime(_ aNotification: Notification) {
if self.playbackLoops {
self.playbackDelegate?.KYLPlayerPlaybackWillLoop(self)
self._avKYLPlayer.seek(to: CMTime.zero)
} else {
if self.playbackFreezesAtEnd {
self.stop()
} else {
self._avKYLPlayer.seek(to: CMTime.zero, completionHandler: {
_ in
self.stop()
})
}
}
}
@objc internal func KYLPlayerItemFailedToPlayToEndTime(_ aNotification: Notification) {
print("\(#function), \(bufferingState), \(bufferSize), \(playbackState)")
self.playbackState = .failed
}
@objc internal func KYLPlayerItemPlaybackStalled(_ notifi:Notification){
print("\(#function), \(bufferingState), \(bufferSize), \(playbackState)")
}
@objc internal func KYLPlayerItemTimeJumped(_ notifi:Notification){
print("\(#function), \(bufferingState), \(bufferSize), \(playbackState)")
}
@objc internal func KYLPlayerItemNewAccessLogEntry(_ notifi:Notification){
print("\(#function), \(bufferingState), \(bufferSize), \(playbackState)")
}
@objc internal func KYLPlayerItemNewErrorLogEntry(_ notifi:Notification){
print("\(#function), \(bufferingState), \(bufferSize), \(playbackState)")
self.playbackState = .failed
}
// MARK: - UIApplication
internal func addApplicationObservers() {
NotificationCenter.default.addObserver(self, selector: #selector(handleApplicationWillResignActive(_:)), name: UIApplication.willResignActiveNotification, object: UIApplication.shared)
NotificationCenter.default.addObserver(self, selector: #selector(handleApplicationDidBecomeActive(_:)), name: UIApplication.didBecomeActiveNotification, object: UIApplication.shared)
NotificationCenter.default.addObserver(self, selector: #selector(handleApplicationDidEnterBackground(_:)), name: UIApplication.didEnterBackgroundNotification, object: UIApplication.shared)
NotificationCenter.default.addObserver(self, selector: #selector(handleApplicationWillEnterForeground(_:)), name: UIApplication.willEnterForegroundNotification, object: UIApplication.shared)
}
internal func removeApplicationObservers() {
NotificationCenter.default.removeObserver(self)
}
// MARK: - handlers
@objc internal func handleApplicationWillResignActive(_ aNotification: Notification) {
if self.playbackState == .playing && self.playbackPausesWhenResigningActive {
self.pause()
}
}
@objc internal func handleApplicationDidBecomeActive(_ aNotification: Notification) {
if self.playbackState != .playing && self.playbackResumesWhenBecameActive {
self.play()
}
}
@objc internal func handleApplicationDidEnterBackground(_ aNotification: Notification) {
if self.playbackState == .playing && self.playbackPausesWhenBackgrounded {
self.pause()
}
}
@objc internal func handleApplicationWillEnterForeground(_ aNoticiation: Notification) {
if self.playbackState != .playing && self.playbackResumesWhenEnteringForeground {
self.play()
}
}
}
// MARK: - KVO
// KVO contexts
private var KYLPlayerObserverContext = 0
private var KYLPlayerItemObserverContext = 0
private var KYLPlayerLayerObserverContext = 0
// KVO KYLPlayer keys
private let KYLPlayerTracksKey = "tracks"
private let KYLPlayerPlayableKey = "playable"
private let KYLPlayerDurationKey = "duration"
private let KYLPlayerRateKey = "rate"
// KVO KYLPlayer item keys
private let KYLPlayerStatusKey = "status"
private let KYLPlayerEmptyBufferKey = "playbackBufferEmpty"
private let KYLPlayerFullBufferKey = "playbackBufferFull"
private let KYLPlayerKeepUpKey = "playbackLikelyToKeepUp"
private let KYLPlayerLoadedTimeRangesKey = "loadedTimeRanges"
// KVO KYLPlayer layer keys
private let KYLPlayerReadyForDisplayKey = "readyForDisplay"
extension KYLPlayer {
// MARK: - AVKYLPlayerLayerObservers
internal func addKYLPlayerLayerObservers() {
self._KYLPlayerView.layer.addObserver(self, forKeyPath: KYLPlayerReadyForDisplayKey, options: [.new, .old], context: &KYLPlayerLayerObserverContext)
}
internal func removeKYLPlayerLayerObservers() {
self._KYLPlayerView.layer.removeObserver(self, forKeyPath: KYLPlayerReadyForDisplayKey, context: &KYLPlayerLayerObserverContext)
}
// MARK: - AVKYLPlayerObservers
internal func addKYLPlayerObservers() {
self._timeObserver = self._avKYLPlayer.addPeriodicTimeObserver(forInterval: CMTimeMake(value: 1, timescale: 100), queue: DispatchQueue.main, using: {
[weak self] timeInterval in
guard let strongSelf = self
else {
return
}
strongSelf.playbackDelegate?.KYLPlayerCurrentTimeDidChange(strongSelf)
})
self._avKYLPlayer.addObserver(self, forKeyPath: KYLPlayerRateKey, options: [.new, .old], context: &KYLPlayerObserverContext)
}
internal func removeKYLPlayerObservers() {
if let observer = self._timeObserver {
self._avKYLPlayer.removeTimeObserver(observer)
}
self._avKYLPlayer.removeObserver(self, forKeyPath: KYLPlayerRateKey, context: &KYLPlayerObserverContext)
}
// MARK: -
override open func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey: Any]?, context: UnsafeMutableRawPointer?) {
// KYLPlayerRateKey, KYLPlayerObserverContext
//print("\(#function), keyPath=\(String(describing: keyPath)), obj = \(String(describing: object)), change =\(String(describing: change))")
if context == &KYLPlayerItemObserverContext {
// KYLPlayerStatusKey
if keyPath == KYLPlayerKeepUpKey {
// KYLPlayerKeepUpKey
if let item = self._KYLPlayerItem {
if item.isPlaybackLikelyToKeepUp {
self.bufferingState = .ready
if self.playbackState == .playing {
self.playFromCurrentTime()
}
}
}
if let status = change?[NSKeyValueChangeKey.newKey] as? NSNumber {
switch status.intValue {
case AVPlayer.Status.readyToPlay.rawValue:
self._KYLPlayerView.playerLayer.player = self._avKYLPlayer
self._KYLPlayerView.playerLayer.isHidden = false
case AVPlayer.Status.failed.rawValue:
self.playbackState = PlaybackState.failed
default:
break
}
}
} else if keyPath == KYLPlayerEmptyBufferKey {
// KYLPlayerEmptyBufferKey
if let item = self._KYLPlayerItem {
print("isPlaybackBufferEmpty = \(item.isPlaybackBufferEmpty)")
if item.isPlaybackBufferEmpty {
self.bufferingState = .delayed
}
else {
self.bufferingState = .ready
}
}
if let status = change?[NSKeyValueChangeKey.newKey] as? NSNumber {
switch status.intValue {
case AVPlayer.Status.readyToPlay.rawValue:
self._KYLPlayerView.playerLayer.player = self._avKYLPlayer
self._KYLPlayerView.playerLayer.isHidden = false
case AVPlayer.Status.failed.rawValue:
self.playbackState = PlaybackState.failed
default:
break
}
}
} else if keyPath == KYLPlayerLoadedTimeRangesKey {
// KYLPlayerLoadedTimeRangesKey
if let item = self._KYLPlayerItem {
self.bufferingState = .ready
let timeRanges = item.loadedTimeRanges
if let timeRange = timeRanges.first?.timeRangeValue {
let bufferedTime = CMTimeGetSeconds(CMTimeAdd(timeRange.start, timeRange.duration))
if _lastBufferTime != bufferedTime {
self.executeClosureOnMainQueueIfNecessary {
self.KYLPlayerDelegate?.KYLPlayerBufferTimeDidChange(bufferedTime)
}
_lastBufferTime = bufferedTime
}
}
let currentTime = CMTimeGetSeconds(item.currentTime())
if ((_lastBufferTime - currentTime) >= self.bufferSize ||
_lastBufferTime == maximumDuration ||
timeRanges.first == nil)
&& self.playbackState == .playing
{
self.play()
}
}
}
} else if context == &KYLPlayerLayerObserverContext {
if self._KYLPlayerView.playerLayer.isReadyForDisplay {
self.executeClosureOnMainQueueIfNecessary {
self.KYLPlayerDelegate?.KYLPlayerReady(self)
}
}
}
else if keyPath == KYLPlayerFullBufferKey {
// KYLPlayerFullBufferKey
if let item = self._KYLPlayerItem {
print("isPlaybackBufferFull = \(item.isPlaybackBufferFull)")
}
}
}
}
// MARK: - queues
extension KYLPlayer {
internal func executeClosureOnMainQueueIfNecessary(withClosure closure: @escaping () -> Void) {
if Thread.isMainThread {
closure()
} else {
DispatchQueue.main.async(execute: closure)
}
}
}
// MARK: - KYLPlayerView
internal class KYLPlayerView: UIView {
// MARK: - properties
override class var layerClass: AnyClass {
get {
return AVPlayerLayer.self
}
}
var playerLayer: AVPlayerLayer {
get {
return self.layer as! AVPlayerLayer
}
}
var player: AVPlayer? {
get {
return self.playerLayer.player
}
set {
self.playerLayer.player = newValue
}
}
var fillMode: String {
get {
return self.playerLayer.videoGravity.rawValue
}
set {
self.playerLayer.videoGravity = AVLayerVideoGravity(rawValue: newValue)
}
}
// MARK: - object lifecycle
override init(frame: CGRect) {
super.init(frame: frame)
self.playerLayer.backgroundColor = UIColor.black.cgColor
self.playerLayer.fillMode = CAMediaTimingFillMode(rawValue: KYLPlayerFillMode.resizeAspectFit.avFoundationType)
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
self.playerLayer.backgroundColor = UIColor.black.cgColor
self.playerLayer.fillMode = CAMediaTimingFillMode(rawValue: KYLPlayerFillMode.resizeAspectFit.avFoundationType)
}
deinit {
self.player?.pause()
self.player = nil
}
}