2014/10/15 下午 10:04:24

iphone Programming Glossary: avassetwriterinputpixelbufferadaptor

Writing video + generated audio to AVAssetWriterInput, audio stuttering

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

the pixel buffer adaptor used to convert the incoming video frames and append them to videoWriterInput. avAdaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput videoWriterInput sourcePixelBufferAttributes bufferAttributes retain..

How do I export UIImage array as a movie?

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

2 Start a session videoWriter startWriting videoWriter startSessionAtSourceTime 因 3 Write some samples Or you can use AVAssetWriterInputPixelBufferAdaptor. That lets you feed the writer input data from a CVPixelBuffer that 䏭 quite easy to create from a CGImage. writerInput appendSampleBuffer..

ASSETWriterInput for making Video from UIImages on Iphone Issues

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

to ASSETWriterInput . Everything looks good except there's No data in the video file. What's wrong 1 Adaptor class AVAssetWriterInputPixelBufferAdaptor avAdaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput writerInput sourcePixelBufferAttributes.. except there's No data in the video file. What's wrong 1 Adaptor class AVAssetWriterInputPixelBufferAdaptor avAdaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput writerInput sourcePixelBufferAttributes NULL avAdaptor appendPixelBufferixelBuffer.. writerInput AVAssetWriterInput assetWriterInputWithMediaType AVMediaTypeVideo outputSettings videoSettings retain AVAssetWriterInputPixelBufferAdaptor adaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput writerInput sourcePixelBufferAttributes..

Can use AVCaptureVideoDataOutput and AVCaptureMovieFileOutput at the same time?

http://stackoverflow.com/questions/4944083/can-use-avcapturevideodataoutput-and-avcapturemoviefileoutput-at-the-same-time

AVCaptureSession and AVCaptureVideoDataOutput to route frames into my own code AVAssetWriter AVAssetWriterInput and AVAssetWriterInputPixelBufferAdaptor to write frames out to an H.264 encoded movie file That's without investigating audio. I end up getting CMSampleBuffers.. a AVAssetWriterPixelBufferAdaptor to expect the same 32BGRA input as I've asked the AVCaptureVideDataOutput to supply AVAssetWriterInputPixelBufferAdaptor pixelBufferAdaptor AVAssetWriterInputPixelBufferAdaptor alloc initWithAssetWriterInput assetWriterInput sourcePixelBufferAttributes.. input as I've asked the AVCaptureVideDataOutput to supply AVAssetWriterInputPixelBufferAdaptor pixelBufferAdaptor AVAssetWriterInputPixelBufferAdaptor alloc initWithAssetWriterInput assetWriterInput sourcePixelBufferAttributes NSDictionary dictionaryWithObjectsAndKeys..

AVAssetWritter does not work with audio

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

acl length sizeof acl AVChannelLayoutKey nil retain audio_writer_input.expectsMediaDataInRealTime YES av_adaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput writer_input sourcePixelBufferAttributes NULL retain video_writer..

AVFoundation + AssetWriter: Generate Movie With Images and Audio

http://stackoverflow.com/questions/5640657/avfoundation-assetwriter-generate-movie-with-images-and-audio

AVAssetWriterInput assetWriterInputWithMediaType AVMediaTypeVideo outputSettings videoSettings retain AVAssetWriterInputPixelBufferAdaptor adaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput videoWriterInput .. AVMediaTypeVideo outputSettings videoSettings retain AVAssetWriterInputPixelBufferAdaptor adaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput videoWriterInput sourcePixelBufferAttributes nil NSParameterAssert..

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

fileURL options nil retain AVAssetReader audioReader AVAssetReader assetReaderWithAsset asset error error retain AVAssetWriterInputPixelBufferAdaptor adaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput videoWriterInput.. audioReader AVAssetReader assetReaderWithAsset asset error error retain AVAssetWriterInputPixelBufferAdaptor adaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput videoWriterInput sourcePixelBufferAttributes nil AVAssetTrack.. AVAssetWriterInput assetWriterInputWithMediaType AVMediaTypeVideo outputSettings videoSettings retain AVAssetWriterInputPixelBufferAdaptor adaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput videoWriterInput..

AVAssetWriter Woes

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

a pool. That works but is too memory intensive to work on the device. My second method was to use the recommended AVAssetWriterInputPixelBufferAdaptor and then pull pixel buffers from the adaptors pixelBufferPool with CVPixelBufferPoolCreatePixelBuffer. That also works on.. bufferAttributes setObject NSNumber numberWithInt 480 forKey NSString kCVPixelBufferHeightKey adaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput writerInput sourcePixelBufferAttributes nil retain CVPixelBufferPoolCreate.. dictionaryWithObjectsAndKeys NSNumber numberWithInt kCVPixelFormatType_32BGRA kCVPixelBufferPixelFormatTypeKey nil AVAssetWriterInputPixelBufferAdaptor adaptor AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput _videoWriterInput..

Faster alternative to glReadPixels in iPhone OpenGL ES 2.0

http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0

NSNumber numberWithInt videoSize.height kCVPixelBufferHeightKey nil assetWriterPixelBufferInput AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput assetWriterVideoInput sourcePixelBufferAttributes sourcePixelBufferAttributesDictionary..

Record the drawing as a m4v video file - OpenGL

http://stackoverflow.com/questions/9661259/record-the-drawing-as-a-m4v-video-file-opengl