Question

ios开发 自定义的avplayer播放器可以支持多少格式

Answer 1

我们在项目中会遇到播放音频的功能，自己也研究了一下，搞了一个小的功能播放器，供大家交流。<br><br>我们用之前应该导入mediaolayer的框架。<br><br>
// MoviePlayerViewController.m
// Player
//
// Created by dllo on 15/11/7.
// Copyright © 2015年 zhaoqingwen. All rights reserved.
//

#import "MoviePlayerViewController.h"
#import <AVFoundation/AVFoundation.h>
#import <MediaPlayer/MediaPlayer.h>
@interface MoviePlayerViewController ()

@property(nonatomic,strong)AVPlayer *player; // 播放属性
@property(nonatomic,strong)AVPlayerItem *playerItem; // 播放属性
@property(nonatomic,assign)CGFloat width; // 坐标
@property(nonatomic,assign)CGFloat height; // 坐标
@property(nonatomic,strong)UISlider *slider; // 进度条
@property(nonatomic,strong)UILabel *currentTimeLabel; // 当前播放时间
@property(nonatomic,strong)UILabel *systemTimeLabel; // 系统时间
@property(nonatomic,strong)UIView *backView; // 上面一层Viewd
@property(nonatomic,assign)CGPoint startPoint;
@property(nonatomic,assign)CGFloat systemVolume;
@property(nonatomic,strong)UISlider *volumeViewSlider;
@property(nonatomic,strong)UIActivityIndicatorView *activity; // 系统菊花
@property(nonatomic,strong)UIProgressView *progress; // 缓冲条
@property(nonatomic,strong)UIView *topView;

@end

@implementation MoviePlayerViewController

- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self name:AVPlayerItemDidPlayToEndTimeNotification object:_player.currentItem];
}

- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor blackColor];

_width = [[UIScreen mainScreen]bounds].size.height;
_height = [[UIScreen mainScreen]bounds].size.width;
// 创建AVPlayer
self.playerItem = [AVPlayerItem playerItemWithURL:[NSURL URLWithString:@"http://m3u8back.gougouvideo.com/m3u8_yyyy?i=4275259"]];
self.player = [AVPlayer playerWithPlayerItem:_playerItem];
AVPlayerLayer *playerLayer = [AVPlayerLayer playerLayerWithPlayer:_player];
playerLayer.frame = CGRectMake(0, 0, _width, _height);
playerLayer.videoGravity = AVLayerVideoGravityResize;
[self.view.layer addSublayer:playerLayer];
[_player play];
//AVPlayer播放完成通知
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayDidEnd:) name:AVPlayerItemDidPlayToEndTimeNotification object:_player.currentItem];

self.backView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, _width, _height)];
[self.view addSubview:_backView];
_backView.backgroundColor = [UIColor clearColor];

self.topView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, _width, _height * 0.15)];
_topView.backgroundColor = [UIColor blackColor];
_topView.alpha = 0.5;
[_backView addSubview:_topView];

[self.playerItem addObserver:self forKeyPath:@"loadedTimeRanges" options:NSKeyValueObservingOptionNew context:nil];// 监听loadedTimeRanges属性

[self createProgress];
[self createSlider];
[self createCurrentTimeLabel];
[self createButton];
[self backButton];
[self createTitle];
[self createGesture];

[self customVideoSlider];

self.activity = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];
_activity.center = _backView.center;
[self.view addSubview:_activity];
[_activity startAnimating];

// //延迟线程
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(7 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

[UIView animateWithDuration:0.5 animations:^{

_backView.alpha = 0;
}];

});

//计时器
[NSTimer scheduledTimerWithTimeInterval:1.f target:self selector:@selector(Stack) userInfo:nil repeats:YES];
// self.modalPresentationCapturesStatusBarAppearance = YES;

}
#pragma mark - 横屏代码
- (BOOL)shouldAutorotate{
return NO;
} //NS_AVAILABLE_IOS(6_0);当前viewcontroller是否支持转屏

- (UIInterfaceOrientationMask)supportedInterfaceOrientations{

return UIInterfaceOrientationMaskLandscape;
} //当前viewcontroller支持哪些转屏方向

-(UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
return UIInterfaceOrientationLandscapeRight;
}

- (BOOL)prefersStatusBarHidden
{
return NO; // 返回NO表示要显示，返回YES将hiden
}
#pragma mark - 创建UISlider
- (void)createSlider
{
self.slider = [[UISlider alloc]initWithFrame:CGRectMake(100, 345, _width * 0.7, 15)];
[self.backView addSubview:_slider];
[_slider setThumbImage:[UIImage imageNamed:@"iconfont-yuan.png"] forState:UIControlStateNormal];
[_slider addTarget:self action:@selector(progressSlider:) forControlEvents:UIControlEventValueChanged];
_slider.minimumTrackTintColor = [UIColor colorWithRed:30 / 255.0 green:80 / 255.0 blue:100 / 255.0 alpha:1];

}

#pragma mark - slider滑动事件
- (void)progressSlider:(UISlider *)slider
{
//拖动改变视频播放进度
if (_player.status == AVPlayerStatusReadyToPlay) {

// //计算出拖动的当前秒数
CGFloat total = (CGFloat)_playerItem.duration.value / _playerItem.duration.timescale;

// NSLog(@"%f", total);

NSInteger dragedSeconds = floorf(total * slider.value);

// NSLog(@"dragedSeconds:%ld",dragedSeconds);

//转换成CMTime才能给player来控制播放进度

CMTime dragedCMTime = CMTimeMake(dragedSeconds, 1);

[_player pause];

[_player seekToTime:dragedCMTime completionHandler:^(BOOL finish){

[_player play];

}];

}
}
#pragma mark - 创建UIProgressView
- (void)createProgress
{
self.progress = [[UIProgressView alloc]initWithFrame:CGRectMake(102, 352, _width * 0.69, 15)];
[_backView addSubview:_progress];
}
#pragma mark -
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSString *,id> *)change context:(void *)context
{
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.progress setProgress:timeInterval / totalDuration animated:NO];
}
}