代码之家 › 专栏 › 技术社区 › Andiih

以编程方式访问iPhone视频的方向

orientation video objective-c iphone

1

Andiih · 技术社区 · 16 年前

1 回复 | 直到 7 年前

1

Adam 15 年前

比如:

NSURL *url = // url to the video returned by the picker
AVAssetTrack *videoTrack = [[url tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0];
videoTrack.preferredTransform; // CGAffineTransform that tells you whether the video is rotated from original orientation
videoTrack.naturalSize; // CGSize that tells you the current dimensions of the video