播放器: AVPlayer

AVPlayer *player = [AVPlayer playerWithURL:[NSURL URLWithString:@"http://flv2.bn.netease.com/videolib3/1511/30/wvCOz5519/SD/wvCOz5519-mobile.mp4"]];
    //视频展示涂层
    AVPlayerLayer *playLayer = [AVPlayerLayer playerLayerWithPlayer:self.player];
    //设置涂层的 frame
    playLayer.frame = self.view.bounds;
    //把视频展示涂层添加进 self.view 内部
    [self.view.layer addSublayer:playLayer];
    //如果是音频, 可以直接播放
    [self.player play];