2014/10/15 下午 10:16:02

iphone Programming Glossary: writer

http://stackoverflow.com/questions/1825605/create-xml-file-dynamically-in-iphone

help me in doing so. Thanks Gaurav iphone xml file share improve this question Try the open source XML stream writer for iOS Written in Objective C a single .h. and .m file One @protocol for namespaces support and one for without Example..

Upload live streaming video from iPhone like Ustream or Qik

http://stackoverflow.com/questions/1960782/upload-live-streaming-video-from-iphone-like-ustream-or-qik

in the didOutputSampleBuffer function above you add the samples into an AVAssetWriter . I actually had three asset writers active at a time past present and future managed on different threads. The past writer is in the process of closing the.. . I actually had three asset writers active at a time past present and future managed on different threads. The past writer is in the process of closing the movie file and uploading it. The current writer is receiving the sample buffers from the.. on different threads. The past writer is in the process of closing the movie file and uploading it. The current writer is receiving the sample buffers from the camera. The future writer is in the process of opening a new movie file and preparing..

How do I export UIImage array as a movie?

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

share improve this question Take a look at AVAssetWriter and the rest 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.. 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 videoWriter AVAssetWriter alloc initWithURL NSURL fileURLWithPath somePath fileType AVFileTypeQuickTimeMovie.. NSNumber numberWithInt 640 AVVideoWidthKey NSNumber numberWithInt 480 AVVideoHeightKey nil AVAssetWriterInput writerInput AVAssetWriterInput assetWriterInputWithMediaType AVMediaTypeVideo outputSettings videoSettings retain NSParameterAssert..

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

CMSampleBufferRef sampleBuffer if _isRecording if _videoWriter.status AVAssetWriterStatusWriting NSLog @ Warning writer status is d _videoWriter.status if _videoWriter.status AVAssetWriterStatusFailed NSLog @ Error @ _videoWriter.error return.. CMSampleBufferRef sampleBuffer if _isRecording if _videoWriter.status AVAssetWriterStatusWriting NSLog @ Warning writer status is d _videoWriter.status if _videoWriter.status AVAssetWriterStatusFailed NSLog @ Error @ _videoWriter.error return.. audio input I would be very glad if someone could find which is the problem in this code. iphone video audio avassetwriter share improve this question In startVideoRecording I call I assume you are calling this at some point _capSession startRunning..

Can use AVCaptureVideoDataOutput and AVCaptureMovieFileOutput at the same time?

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

the delegate and a suitable dispatch queue affixed. to prepare for output I'll output 640x480 in H.264 via an asset writer NSDictionary outputSettings NSDictionary dictionaryWithObjectsAndKeys NSNumber numberWithInt 640 AVVideoWidthKey NSNumber.. nil that's going to go somewhere I imagine you've got the URL for that sorted so create a suitable asset writer we'll put our H.264 within the normal MPEG4 container AVAssetWriter assetWriter AVAssetWriter alloc initWithURL URLFromSomwhere..

Uploading live streaming video from iPhone [duplicate]

http://stackoverflow.com/questions/5062266/uploading-live-streaming-video-from-iphone

iOS video streaming and storing on device afterwards

http://stackoverflow.com/questions/6290251/ios-video-streaming-and-storing-on-device-afterwards

Video Encoding using AVAssetWriter - CRASHES

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

case AVAssetReaderStatusCompleted your method for when the conversion is done should call finishWriting on the writer hook up audio track audioReader startReading videoWriter startSessionAtSourceTime kCMTimeZero dispatch_queue_t mediaInputQueue.. somewhere after it is written I would be most greatful to anyone that has any input. iphone objective c ipad avassetwriter avassetreader share improve this question copyNextSampleBuffer is returning a CMSampleBufferRef with 1 retain copy methods..

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

CVOpenGLESTextureGetName renderTexture 0 This pulls a pixel buffer from the pool associated with my asset writer input creates and associates a texture with it and uses that texture as a target for my FBO. Once I've rendered a frame.. the base address of the pixel buffer CVPixelBufferLockBaseAddress pixel_buffer 0 and then simply feed it into my asset writer to be encoded CMTime currentTime CMTimeMakeWithSeconds NSDate date timeIntervalSinceDate startTime 120 if assetWriterPixelBufferInput..