2014/10/15 下午 10:10:55

iphone Programming Glossary: lasttime

Merge Two Video files in iPhone Application

http://stackoverflow.com/questions/10071029/merge-two-video-files-in-iphone-application

@ inside for loop d i for int pframetime 1 pframetime 2 pframetime CMTime frameTime CMTimeMake pframetime 25 CMTime lastTime CMTimeMake i 1 i is from 0 to 19 of the loop above CMTime presentTime CMTimeAdd lastTime frameTime if i 0 buffer self pixelBufferFromCGImage.. pframetime 25 CMTime lastTime CMTimeMake i 1 i is from 0 to 19 of the loop above CMTime presentTime CMTimeAdd lastTime frameTime if i 0 buffer self pixelBufferFromCGImage UIImage imageNamed @ 1.jpeg CGImage else buffer self pixelBufferFromCGImage..

AVAssetWriter Woes

http://stackoverflow.com/questions/6189535/avassetwriter-woes

YES Start a session videoWriter startWriting videoWriter startSessionAtSourceTime kCMTimeZero buffer NULL lastTime kCMTimeZero presentTime kCMTimeZero return YES Next the two methods that append the writer and create the pixel buffer to.. writeImageToMovie CGImageRef image if writerInput isReadyForMoreMediaData CMTime frameTime CMTimeMake 1 20 CMTime lastTime CMTimeMake i 20 i is from 0 to 24 of the loop above CMTime presentTime CMTimeAdd lastTime frameTime buffer self pixelBufferFromCGImage.. CMTimeMake 1 20 CMTime lastTime CMTimeMake i 20 i is from 0 to 24 of the loop above CMTime presentTime CMTimeAdd lastTime frameTime buffer self pixelBufferFromCGImage image BOOL success adaptor appendPixelBuffer buffer withPresentationTime presentTime..