2014/10/15 下午 10:15:45

iphone Programming Glossary: videocompositioninstruction

How can I add overlay text on a video, then re-encode it?

http://stackoverflow.com/questions/10190333/how-can-i-add-overlay-text-on-a-video-then-re-encode-it

videoLayer inLayer parentLayer AVMutableVideoCompositionInstruction instruction AVMutableVideoCompositionInstruction videoCompositionInstruction instruction.timeRange CMTimeRangeMake kCMTimeZero mixComposition duration AVAssetTrack videoTrack mixComposition tracksWithMediaType..

how to control orientation of video assembled with AVMutableComposition

http://stackoverflow.com/questions/4175060/how-to-control-orientation-of-video-assembled-with-avmutablecomposition

CMTimeMake 1 30 AVMutableVideoCompositionInstruction instruction AVMutableVideoCompositionInstruction videoCompositionInstruction instruction.timeRange CMTimeRangeMake kCMTimeZero CMTimeMakeWithSeconds 60 30 AVMutableVideoCompositionLayerInstruction..

CoreAnimation, AVFoundation and ability to make Video export

http://stackoverflow.com/questions/5031721/coreanimation-avfoundation-and-ability-to-make-video-export

videoComposition AVMutableVideoComposition videoComposition AVMutableVideoCompositionInstruction videoCompositionInstruction AVMutableVideoCompositionInstruction videoCompositionInstruction videoCompositionInstruction.timeRange CMTimeRangeMake kCMTimeZero.. videoComposition AVMutableVideoCompositionInstruction videoCompositionInstruction AVMutableVideoCompositionInstruction videoCompositionInstruction videoCompositionInstruction.timeRange CMTimeRangeMake kCMTimeZero CMTimeMake imagesFilePath count albumSettings transitionTime.. videoCompositionInstruction AVMutableVideoCompositionInstruction videoCompositionInstruction videoCompositionInstruction.timeRange CMTimeRangeMake kCMTimeZero CMTimeMake imagesFilePath count albumSettings transitionTime intValue 25 25 AVMutableVideoCompositionLayerInstruction..

How to combine video clips with different orientation using AVFoundation

http://stackoverflow.com/questions/6575128/how-to-combine-video-clips-with-different-orientation-using-avfoundation

videoComposition.renderScale 1.0 AVMutableVideoCompositionInstruction instruction AVMutableVideoCompositionInstruction videoCompositionInstruction AVMutableVideoCompositionLayerInstruction layerInstruction AVMutableVideoCompositionLayerInstruction videoCompositionLayerInstructionWithAssetTrack..