//
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// PBAVPlayerManager.m
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// IphoneBIMe
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//
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// Created by zjf on 2019/1/3.
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// Copyright © 2019 ProBIM. All rights reserved.
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//
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#import "PBAVPlayerManager.h"
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@interface PBAVPlayerManager()<AVPlayerItemOutputPullDelegate>
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@property (nonatomic, strong) AVPlayer *player;
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@property (nonatomic, strong) AVPlayerItem *item;
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@end
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@implementation PBAVPlayerManager
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+ (instancetype)sharedManager{
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static PBAVPlayerManager *manager;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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manager = [[PBAVPlayerManager alloc] init];
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});
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return manager;
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}
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- (instancetype)init {
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self = [super init];
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if (self) {
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_player = [[AVPlayer alloc] init];
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}
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return self;
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}
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#pragma mark - 播放本地录音
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- (void)playItemWithName:(NSString *)recodingName {
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if (recodingName != nil) {
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//真机必须添加此代码
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AVAudioSession *session = [AVAudioSession sharedInstance];
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[session setCategory:AVAudioSessionCategoryPlayback error:nil];
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[session setActive:YES error:nil];
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NSURL *sourceMovieUrl = [NSURL fileURLWithPath:[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES).lastObject stringByAppendingPathComponent:recodingName]];
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AVAsset *movieAsset = [AVURLAsset URLAssetWithURL:sourceMovieUrl options:nil];
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AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:movieAsset];
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if (self.item) {
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[self removeObserverFromPlayerItem:self.item];
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[_player replaceCurrentItemWithPlayerItem:playerItem];
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}else {
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_player = [AVPlayer playerWithPlayerItem:playerItem];
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}
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self.item = playerItem;
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// [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playbackFinished:) name:AVPlayerItemDidPlayToEndTimeNotification object:_player.currentItem];
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[self addObserverToPlayerItem:self.item];
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[_player play];
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}else {
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[YJProgressHUD showMessage:@"没有找到此音频文件" inView:nil];
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}
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}
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#pragma mark - 播放网络音频
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- (void)playItemWithUrl:(NSString *)recordingUrl {
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AVAudioSession *session = [AVAudioSession sharedInstance];
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[session setCategory:AVAudioSessionCategoryPlayback error:nil];
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[session setActive:YES error:nil];
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// NSURL *sourceMovieUrl = [NSURL URLWithString:[NSString stringWithFormat:@"%@%@",BaseUrl,recordingUrl]];
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NSURL *sourceMovieUrl = [NSURL URLWithString:recordingUrl];
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AVAsset *movieAsset = [AVURLAsset URLAssetWithURL:sourceMovieUrl options:nil];
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AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:movieAsset];
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if (self.item) {
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[self removeObserverFromPlayerItem:self.item];
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[_player replaceCurrentItemWithPlayerItem:playerItem];
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} else {
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_player = [AVPlayer playerWithPlayerItem:playerItem];
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}
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self.item = playerItem;
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[_player replaceCurrentItemWithPlayerItem:playerItem];
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// [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playbackFinished:) name:AVPlayerItemDidPlayToEndTimeNotification object:_player.currentItem];
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[self addObserverToPlayerItem:self.item];
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[_player play];
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}
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/**
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* 给AVPlayerItem添加监控
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*
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* @param playerItem AVPlayerItem对象
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*/
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- (void)addObserverToPlayerItem:(AVPlayerItem *)playerItem
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{
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if (playerItem) {
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[playerItem addObserver:self
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forKeyPath:@"status"
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options:NSKeyValueObservingOptionNew
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context:nil];
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//监控网络加载情况属性
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[playerItem addObserver:self
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forKeyPath:@"loadedTimeRanges"
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options:NSKeyValueObservingOptionNew
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context:nil];
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//给AVPlayerItem添加播放完成通知
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(playbackFinished:) name:AVPlayerItemDidPlayToEndTimeNotification object:_player.currentItem];
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}
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}
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- (void)removeObserverFromPlayerItem:(AVPlayerItem *)playerItem
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{
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if (playerItem) {
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[playerItem removeObserver:self forKeyPath:@"status"];
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[playerItem removeObserver:self forKeyPath:@"loadedTimeRanges"];
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[[NSNotificationCenter defaultCenter]removeObserver:self
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name:AVPlayerItemDidPlayToEndTimeNotification
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object:playerItem];
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}
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}
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- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context {
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AVPlayerItem *playerItem = object;
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if ([keyPath isEqualToString:@"status"]) {
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AVPlayerStatus status = [[change objectForKey:@"new"] intValue];
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switch (status) {
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case AVPlayerStatusUnknown:{
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self.status = ETPlayer_UnkonwError;
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if ([self respondsDelegate]) {
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[self.delegate currentPlayerStatus:ETPlayer_UnkonwError];
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}
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break;
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}
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case AVPlayerStatusReadyToPlay:{
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self.status = ETPlayer_ReadyToPlay;
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if ([self respondsDelegate]) {
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[self.delegate currentPlayerStatus:ETPlayer_ReadyToPlay];
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}
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CMTime time = _player.currentItem.duration;
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float value1 = time.value / time.timescale;
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float value2 = CMTimeGetSeconds(self.player.currentItem.asset.duration);
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NSLog(@"正在播放，_player.currentItem.duration 总长度:%.2f", value1);
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NSLog(@"正在播放，_player.currentItem.asset.duration总长度:%.2f", value2);
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break;
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}
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case AVPlayerStatusFailed: {
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self.status = ETPlayer_PlayFailed;
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if ([self respondsDelegate]) {
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[self.delegate currentPlayerStatus:ETPlayer_PlayFailed];
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}
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[PBNoteCenter postNotificationName:PBNoteCenterPlayOver object:nil];
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[YJProgressHUD showMessage:@"加载音频失败" inView:nil];
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break;
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}
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default:
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break;
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}
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}else if([keyPath isEqualToString:@"loadedTimeRanges"]) {
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double timeInterval = [self availableDuration];
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CMTime duration = playerItem.duration;
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double totalDuration = CMTimeGetSeconds(duration);
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NSLog(@"timeInterval:%f",timeInterval);
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NSLog(@"totalDuration:%f",totalDuration);
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if (timeInterval < 1.5 * totalDuration) {
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self.status = ETPlayer_Loading;
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if ([self respondsDelegate]) { [self.delegate currentPlayerStatus:ETPlayer_Loading]; }
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}else if ([self isPlaying]) {
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self.status = ETPlayer_Playing;
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if ([self respondsDelegate]) { [self.delegate currentPlayerStatus:ETPlayer_Playing]; }
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} else {
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self.status = ETPlayer_Loading;
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if ([self respondsDelegate]) { [self.delegate currentPlayerStatus:ETPlayer_Loading]; }
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}
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}
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}
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- (BOOL)respondsDelegate {
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if (self.delegate && [self.delegate respondsToSelector:@selector(currentPlayerStatus:)]) {
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return YES;
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}
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return NO;
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}
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- (BOOL)isPlaying
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{
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// 可以根据值去判断播放还是暂停
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if (_player.rate == 0.0) {
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return NO;
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}
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return YES;
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}
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- (double)availableDuration{
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NSArray *loadedTimeRanges = self.player.currentItem.loadedTimeRanges;
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NSValue *value = loadedTimeRanges.firstObject;
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CMTimeRange timeRange = value.CMTimeRangeValue;
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double startSeconds = CMTimeGetSeconds(timeRange.duration);
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double durationSeconds = CMTimeGetSeconds(timeRange.duration);
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return startSeconds + durationSeconds;
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}
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- (void)playbackFinished:(NSNotification *)noti {
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[PBNoteCenter postNotificationName:PBNoteCenterPlayOver object:nil];
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}
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- (void)stopPlay {
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[_player pause];
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}
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@end
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