Question

我正在缓存一个m3u8格式的视频，我将此网址设置为MPMovieplayerController的内容

我正在运行一个每0.3秒运行一次的后台线程，用于检查缓冲和播放持续时间并相应地执行检查

if(!mPlaybackProgressTimer)
    mPlaybackProgressTimer = [[NSTimer scheduledTimerWithTimeInterval:0.2 target:self selector:@selector(didPlayback:) userInfo:nil repeats:YES] retain];

和didplayback

...

- (void)didPlayback:(id)sender {

    NSTimeInterval totalDuration = [mVideoPlayerController duration];

    NSTimeInterval playbackTime = [mVideoPlayerController currentPlaybackTime];
    float playbackProgress = 0.0;

   if(playbackTime > 0.0 && totalDuration > 0.0)
       playbackProgress = playbackTime / totalDuration;

   mPercentWatched = round(100 * playbackProgress);

   NSTimeInterval bufferedTime = [mVideoPlayerController playableDuration];
   float bufferProgress = 0.0;

   if(playbackTime > 0.0 && totalDuration > 0.0)
       bufferProgress = bufferedTime / totalDuration;

   [self setProgress:bufferProgress forProgressType:eProgressTypeBuffer];
   [self setProgress:playbackProgress forProgressType:eProgressTypePlay];
}

问题在于，如果我按下主页按钮然后返回应用程序，缓冲时间将丢失，即数据必须再次缓冲。无论如何都要克服这个问题..？

Answer 1

这在设计上并没有任何改变。

当应用程序进入前台时，MPMoviePlayerController缓冲时间丢失

1 个答案: