我正在使用 AVPlayer 在我的项目中播放在线视频。视频播放良好。现在我想减少/增加视频的 fps。以下是我正在使用的代码:
self.asset = [AVAsset assetWithURL:self.videoUrl];
// the video player
self.player = [AVPlayer playerWithURL:self.videoUrl];
self.player.actionAtItemEnd = AVPlayerActionAtItemEndNone;
self.playerLayer = [AVPlayerLayer playerLayerWithPlayer:self.player];
self.playerLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(playerItemDidReachEnd:)
name:AVPlayerItemDidPlayToEndTimeNotification
object:[self.player currentItem]];
self.playerLayer.frame = CGRectMake(0, 0, self.view.frame.size.width, self.myPlayerView.frame.size.height);
[self.myPlayerView.layer addSublayer:self.playerLayer];
- (void)playerItemDidReachEnd:(NSNotification *)notification {
AVPlayerItem *p = [notification object];
[p seekToTime:kCMTimeZero];
}
现在我应该如何降低/提高在线视频的 fps？
最佳答案
你可以这样做，
-(float)getFrameRateFromAVPlayer
{
float fps=0.00;
if (self.queuePlayer.currentItem.asset) {
AVAssetTrack * videoATrack = [[videoAsset tracksWithMediaType:AVMediaTypeVideo] lastObject];
if(videoATrack)
{
fps = videoATrack.nominalFrameRate;
}
}
return fps;
}
或
AVPlayerItem *item = AVPlayer.currentItem; // Your current item
float fps = 0.00;
for (AVPlayerItemTrack *track in item.tracks) {
if ([track.assetTrack.mediaType isEqualToString:AVMediaTypeVideo]) {
fps = track.currentVideoFrameRate;
}
}
希望这会有所帮助:)
关于iOS AVPlayer 变慢，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37249146/