AVMutableVideoCompositionLayerInstruction视频轨道操作指令,AVMutableVideoCompositionLayerInstruction, AVMutableVideoCompositionInstruction,AVPlayerLayer, AVFoundation转场,

Object-C UIImage旋转,Object-C UIImage,UIImage旋转,猿说编程,ios教程,

Object-C UIImage截取,Object-C UIImage,UIImage截取,猿说编程,ios教程,

Object-C UIImage缩放,Object-C UIImage,UIImage缩放,猿说编程,ios教程,

iOS NSValue和CMTimeRange转换,NSValue转CMTimeRange, CMTimeRange转NSValue,NSValue和CMTimeRange转换,猿说编程,

iOS NSValue和NSRange转换,NSValue转NSRange, NSRange转NSValue,NSValue和NSRange转换,猿说编程,

iOS NSValue和CMTime转换,NSValue转CMTime, CMTime转NSValue,NSValue和CMTime转换,猿说编程,

iOS NSValue和CGRect转换,NSValue转CGRect,CGRect转NSValue,NSValue和CGRect转换,猿说编程,

iOS NSValue和CGVector转换,NSValue转CGVector, CGVector转NSValue,NSValue和CGVector转换,猿说编程,

AVFoundation将多个媒体合并导出,AVFoundation合并,AVFoundation导出,AVFoundation合并导出,猿说编程,