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2014/10/15 下午 10:03:44

iphone Programming Glossary: appendsamplebuffer

Writing video + generated audio to AVAssetWriterInput, audio stuttering

http://stackoverflow.com/questions/12187124/writing-video-generated-audio-to-avassetwriterinput-audio-stuttering

1 timestamp NULL sbuf if status noErr NSLog @ CMSampleBufferCreate error return 1 BOOL r audioWriterInput appendSampleBuffer sbuf if r NSLog @ appendSampleBuffer error CFRelease bbuf CFRelease sbuf return 0 Any ideas on what's going on Should.. noErr NSLog @ CMSampleBufferCreate error return 1 BOOL r audioWriterInput appendSampleBuffer sbuf if r NSLog @ appendSampleBuffer error CFRelease bbuf CFRelease sbuf return 0 Any ideas on what's going on Should I be creating appending samples in a..

Convert UIImage to CMSampleBufferRef

http://stackoverflow.com/questions/16475737/convert-uiimage-to-cmsamplebufferref

_uiImage resizedImageWithSize CGSizeMake 320 280 CMSampleBufferRef croppedBuffer NEED HELP WITH THIS _videoInput appendSampleBuffer sampleBuffer _videoInput is a AVAssetWriterInput The imageFromSampleBuffer method looks like this CGImageRef imageFromSampleBuffer..

How do I export UIImage array as a movie?

http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie

of the AVFoundation framework . The writer has an input of type AVAssetWriterInput which in turn has a method called appendSampleBuffer that lets you add individual frames to a video stream. Essentially you 耱l have to 1 Wire the writer NSError error nil AVAssetWriter.. That lets you feed the writer input data from a CVPixelBuffer that 䏭 quite easy to create from a CGImage. writerInput appendSampleBuffer sampleBuffer 4 Finish the session writerInput markAsFinished videoWriter endSessionAtSourceTime 因 videoWriter finishWriting..

ASSETWriterInput for making Video from UIImages on Iphone Issues

http://stackoverflow.com/questions/3983882/assetwriterinput-for-making-video-from-uiimages-on-iphone-issues

CMSampleBufferDataIsReady sample Buffer NSParameterAssert writerInput isReadyForMoreMediaData BOOL success writerInput appendSampleBuffer sampleBuffer iphone image video avfoundation share improve this question I found that for some reason I needed to append..

This code to write video+audio through AVAssetWriter and AVAssetWriterInputs is not working. Why?

http://stackoverflow.com/questions/4149963/this-code-to-write-videoaudio-through-avassetwriter-and-avassetwriterinputs-is

if _videoWriter.status AVAssetWriterStatusFailed NSLog @ Error @ _videoWriter.error return if _videoWriterInput appendSampleBuffer sampleBuffer NSLog @ Unable to write to video input void newAudioSample CMSampleBufferRef sampleBuffer if _isRecording.. if _videoWriter.status AVAssetWriterStatusFailed NSLog @ Error @ _videoWriter.error return if _audioWriterInput appendSampleBuffer sampleBuffer NSLog @ Unable to write to audio input I would be very glad if someone could find which is the problem in..

Help Fix Memory Leak release

http://stackoverflow.com/questions/4914853/help-fix-memory-leak-release

CMSampleBufferRef nextBuffer assetReaderOutput copyNextSampleBuffer if nextBuffer append buffer assetWriterInput appendSampleBuffer nextBuffer NSLog @ appended a buffer d bytes CMSampleBufferGetTotalSampleSize nextBuffer convertedByteCount CMSampleBufferGetTotalSampleSize..

AVAssetWritter does not work with audio

http://stackoverflow.com/questions/5200077/avassetwritter-does-not-work-with-audio

NSDate date timeIntervalSinceDate normal_delegate start_time 30 normal_delegate audio_writer_input appendSampleBuffer sampleBuffer @end The video method doesn't matter because it works. restateConfigiration just sorts out the session configuration.. self.captureManager.audioOutput if bufferWriter audioIn.readyForMoreMediaData break @try if bufferWriter audioIn appendSampleBuffer sampleBuffer self delegateMessage @ Audio Writing Error withType ERROR @catch NSException e NSLog @ Audio Exception.. if bufferWriter videoIn.readyForMoreMediaData break @try if frontCamera if bufferWriter videoIn appendSampleBuffer sampleBuffer self delegateMessage @ Video Writing Error withType ERROR else CMTime pt CMSampleBufferGetPresentationTimeStamp..

Make movie file with picture Array and song file, using AVAsset

http://stackoverflow.com/questions/6061092/make-movie-file-with-picture-array-and-song-file-using-avasset

CMSampleBufferRef nextBuffer readerOutput copyNextSampleBuffer if nextBuffer NSLog @ NextBuffer audioWriterInput appendSampleBuffer nextBuffer audioWriterInput markAsFinished videoWriter finishWriting However the status of AssetWriterInput of audio..

Video Encoding using AVAssetWriter - CRASHES

http://stackoverflow.com/questions/8191840/video-encoding-using-avassetwriter-crashes

status AVAssetReaderStatusReading sampleBuffer asset_reader_output copyNextSampleBuffer BOOL result videoWriterInput appendSampleBuffer sampleBuffer CFRelease sampleBuffer if result reader cancelReading break else videoWriterInput markAsFinished switch.. nextBuffer readerOutput copyNextSampleBuffer NSLog @ Ready if nextBuffer NSLog @ NextBuffer audioWriterInput appendSampleBuffer nextBuffer else audioWriterInput markAsFinished switch audioReader status case AVAssetReaderStatusCompleted ..

iOS - Scale and crop CMSampleBufferRef/CVImageBufferRef

http://stackoverflow.com/questions/8493583/ios-scale-and-crop-cmsamplebufferref-cvimagebufferref

self.videoWriter startWriting self.videoWriter startSessionAtSourceTime lastSampleTime self.videoWriterInput appendSampleBuffer sampleBuffer What I want to do now is to crop and scale the image inside the CMSampleBufferRef without converting it into..

AVCaptureSession only got video buffer

http://stackoverflow.com/questions/9257052/avcapturesession-only-got-video-buffer

NSLog @ Audio Buffer capped if audioWriterInput isReadyForMoreMediaData break @try if audioWriterInput appendSampleBuffer sampleBuffer NSLog @ Audio Writing Error else NSThread sleepForTimeInterval 0.03 @catch NSException e NSLog @..