2014/10/15 下午 10:11:21

iphone Programming Glossary: memcpy

Source for a good, simple, soft modem library

http://stackoverflow.com/questions/10693590/source-for-a-good-simple-soft-modem-library

pRx SampleRate i FILTER_LENGTH 2 2350UL FILTER_LENGTH pRx SampleRate 1 pRx SampleRate pRx Filter i .y 0 memcpy tmp pRx Filter sizeof tmp dft pRx Filter tmp FILTER_LENGTH 1 #define RX_VERBOSE 0 void RxGetSample tRx pRx int16 Sample..

memory leak when using CGImageCreateWithJPEGDataProvider

http://stackoverflow.com/questions/12211158/memory-leak-when-using-cgimagecreatewithjpegdataprovider

const int length IOUtilities byteArrayToIntWithData data Offset offset 18 UInt8 buffer malloc length sizeof UInt8 memcpy buffer data offset 22 length sometimes memory leak in this line CGDataProviderRef jpgDataProvider CGDataProviderCreateWithData..

fastest way to draw a screen buffer on the iphone

http://stackoverflow.com/questions/2395650/fastest-way-to-draw-a-screen-buffer-on-the-iphone

moment size_t GetBytesAtPosition void info void buffer off_t position size_t count I don't think this ever gets called memcpy buffer char info position count return count CGDataProviderDirectCallbacks providerCallbacks 0 GetBytePointer ReleaseBytePointer..

How to pass double[][] into a method call?

http://stackoverflow.com/questions/3216800/how-to-pass-double-into-a-method-call

double matrix 3 3 id initWithMatrix double 3 3 filterMatrix Then your implementation of initWithMatrix can just do a memcpy or the equivalent to copy the data into your instance. Choice #2 is a bit different. Keep your other code the way it is..

Possible to save an integer array using NSUserDefaults on iPhone?

http://stackoverflow.com/questions/350848/possible-to-save-an-integer-array-using-nsuserdefaults-on-iphone

AVAssetReader and Audio Queue streaming problem

http://stackoverflow.com/questions/4763598/avassetreader-and-audio-queue-streaming-problem

NULL audioBufferList sizeof audioBufferList NULL NULL 0 blockBuffer AudioBuffer audioBuffer audioBufferList.mBuffers 0 memcpy inData 2 offsetSample audioBuffer.mData audioBuffer.mDataByteSize bytesToRead bytesToRead audioBuffer.mDataByteSize offsetSample..

Converting NSString into uint8_t

http://stackoverflow.com/questions/4782327/converting-nsstring-into-uint8-t

crypto_data uint8_t bytes Optional way If you plan on using crypto_data as a class variable you will need to do a memcpy since the NSData someData will get autoreleased crypto_data malloc length memcpy crypto_data bytes length work with crypto_data.. class variable you will need to do a memcpy since the NSData someData will get autoreleased crypto_data malloc length memcpy crypto_data bytes length work with crypto_data free crypto_data most likely in dealloc free crypto_data share improve..

how to convert array of bytes to base64 String in iphone?

http://stackoverflow.com/questions/6466083/how-to-convert-array-of-bytes-to-base64-string-in-iphone

index.pl BaseSixtyFour This is really urgent and need to solve asap. I tried by creating individual bytes using memcpy and then creating an array but with no success. What I have tried is as follows NSData d1 @ 64 dataUsingEncoding NSUTF16StringEncoding..

How to convert NSData to byte array in iPhone?

http://stackoverflow.com/questions/724086/how-to-convert-nsdata-to-byte-array-in-iphone

array using a variable so Byte byteData len won't work. If you want to copy the data from a pointer you also need to memcpy which will go through the data pointed to by the pointer and copy each byte up to a specified length . Try NSData data NSData.. . Try NSData data NSData dataWithContentsOfFile filePath NSUInteger len data length Byte byteData Byte malloc len memcpy byteData data bytes len This code will dynamically allocate the array to the correct size you must free byteData when you're..

Why might my AudioQueueOutputCallback not be called?

http://stackoverflow.com/questions/7575670/why-might-my-audioqueueoutputcallback-not-be-called

buffers like this. At this point it is known that the local buffer contains the correct amount of data for copying memcpy aqBuffer mAudioData localBuffer kAQBufferSize aqBuffer mAudioDataByteSize kAQBufferSize OSStatus status AudioQueueEnqueueBuffer..

iOS Stream Audio from one iOS Device to Another

http://stackoverflow.com/questions/8357514/ios-stream-audio-from-one-ios-device-to-another

returned by calling the bytes method on your NSData object into the audio queue buffer inCompleteAQBuffer Using a memcpy memcpy inCompleteAQBuffer mAudioData THIS mMyAudioBuffer THIS mMyPlayBufferPosition sizeof float numBytesToCopy You'll also.. by calling the bytes method on your NSData object into the audio queue buffer inCompleteAQBuffer Using a memcpy memcpy inCompleteAQBuffer mAudioData THIS mMyAudioBuffer THIS mMyPlayBufferPosition sizeof float numBytesToCopy You'll also need..

Blur an UIImage on change of slider

http://stackoverflow.com/questions/8758433/blur-an-uiimage-on-change-of-slider

context if srcData NULL size_t dataSize bpr height finalData malloc dataSize destData malloc dataSize memcpy finalData srcData dataSize memcpy destData srcData dataSize int sums gaussFactor size_t i x y k int gauss_sum 0 size_t radius.. NULL size_t dataSize bpr height finalData malloc dataSize destData malloc dataSize memcpy finalData srcData dataSize memcpy destData srcData dataSize int sums gaussFactor size_t i x y k int gauss_sum 0 size_t radius pixelRadius 2 1 int gauss_fact..

iPhone take augmented reality screenshot with AVCaptureVideoPreviewLayer

http://stackoverflow.com/questions/8980847/iphone-take-augmented-reality-screenshot-with-avcapturevideopreviewlayer

newContext CGColorSpaceRelease colorSpace CGContextRelease newContext else uint8_t tempAddress malloc 640 4 480 memcpy tempAddress baseAddress bytesPerRow height baseAddress tempAddress CGColorSpaceRef colorSpace CGColorSpaceCreateDeviceRGB..

parsing NSData object for information

http://stackoverflow.com/questions/9507053/parsing-nsdata-object-for-information

numberWithLocalOrdering const void bytes myData bytes NSUInteger length myData length while length 0 memcpy typeWithNetworkOrdering bytes sizeof uint16_t bytes sizeof uint16_t length sizeof uint16_t memcpy sizeWithNetworkOrdering.. while length 0 memcpy typeWithNetworkOrdering bytes sizeof uint16_t bytes sizeof uint16_t length sizeof uint16_t memcpy sizeWithNetworkOrdering bytes sizeof uint32_t bytes sizeof uint32_t length sizeof uint32_t typeWithLocalOrdering CFSwapInt16BigToHost.. with the string else if typeWithLocalOrdering NUMBER_TYPE NUMBER_TYPE is whatever type value corresponds to a number memcpy numberWithNetworkOrdering bytes sizeof uint32_t numberWithLocalOrdering CFSwapInt32BigToHost numberWithNetworkOrdering NSLog..

Saving imageRef from GLPaint creates completely black image

http://stackoverflow.com/questions/9857912/saving-imageref-from-glpaint-creates-completely-black-image

array. there's gotta be a better way but this works. GLubyte buffer2 GLubyte malloc myDataLength for int y 0 y h s y memcpy buffer2 h s 1 y w 4 s buffer y 4 w s w 4 s free buffer work with the flipped buffer so get rid of the original one. make..