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2014/10/15 ¤U¤È 10:10:40
iphone Programming Glossary: isreadyformoremediadataMerge Two Video files in iPhone Application http://stackoverflow.com/questions/10071029/merge-two-video-files-in-iphone-application buffer adaptor appendPixelBuffer buffer withPresentationTime kCMTimeZero for int i 0 i 2 i if writerInput isReadyForMoreMediaData NSLog @ inside for loop d i for int pframetime 1 pframetime 2 pframetime CMTime frameTime CMTimeMake pframetime 25 CMTime.. @ 1.jpeg CGImage else buffer self pixelBufferFromCGImage UIImage imageNamed @ 2.jpeg CGImage while writerInput isReadyForMoreMediaData NSThread sleepForTimeInterval 0.05 adaptor appendPixelBuffer buffer withPresentationTime presentTime i if buffer CVBufferRelease..
ASSETWriterInput for making Video from UIImages on Iphone Issues http://stackoverflow.com/questions/3983882/assetwriterinput-for-making-video-from-uiimages-on-iphone-issues Ship out the frame. NSParameterAssert CMSampleBufferDataIsReady sample Buffer NSParameterAssert writerInput isReadyForMoreMediaData BOOL success writerInput appendSampleBuffer sampleBuffer iphone image video avfoundation share improve this question..
http://stackoverflow.com/questions/6189535/avassetwriter-woes that append the writer and create the pixel buffer to append. void 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..
Video Encoding using AVAssetWriter - CRASHES http://stackoverflow.com/questions/8191840/video-encoding-using-avassetwriter-crashes videoWriterInput requestMediaDataWhenReadyOnQueue _processingQueue usingBlock ^ self retain while videoWriterInput isReadyForMoreMediaData CMSampleBufferRef sampleBuffer if reader status AVAssetReaderStatusReading sampleBuffer asset_reader_output copyNextSampleBuffer..
AVCaptureSession only got video buffer http://stackoverflow.com/questions/9257052/avcapturesession-only-got-video-buffer case AVAssetWriterStatusWriting if captureOutput audioOutput NSLog @ Audio Buffer capped if audioWriterInput isReadyForMoreMediaData break @try if audioWriterInput appendSampleBuffer sampleBuffer NSLog @ Audio Writing Error else NSThread sleepForTimeInterval.. @ Audio Exception @ e reason else if captureOutput videoOutput NSLog @ Video Buffer capped if videoWriterInput isReadyForMoreMediaData break @try CVImageBufferRef buffer CMSampleBufferGetImageBuffer sampleBuffer CMTime frameTime CMSampleBufferGetPresentationTimeStamp.. sampleBuffer CMTime frameTime CMSampleBufferGetPresentationTimeStamp sampleBuffer if buffer if videoWriterInput isReadyForMoreMediaData if adaptor appendPixelBuffer buffer withPresentationTime frameTime CMTimeMake frame fps NSLog @ FAIL else NSThread..
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