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2014/10/15 ¤U¤È 10:14:28

iphone Programming Glossary: stderr

I need to inspect the view hierarchy on an iPhone program

http://stackoverflow.com/questions/2343246/i-need-to-inspect-the-view-hierarchy-on-an-iphone-program

va_start arglist formatstring id outstring NSString alloc initWithFormat formatstring arguments arglist fprintf stderr s n outstring UTF8String va_end arglist @implementation UIView ExploreViews void exploreViewAtLevel int level doLog level..

Encoding images to video with ffmpeg

http://stackoverflow.com/questions/3334939/encoding-images-to-video-with-ffmpeg

printf Video encoding n find the mpeg video encoder codec avcodec_find_encoder CODEC_ID_MPEG2VIDEO if codec fprintf stderr codec not found n exit 1 c avcodec_alloc_context picture avcodec_alloc_frame put sample parameters c bit_rate 400000 resolution.. one intra frame every ten frames c max_b_frames 1 c pix_fmt PIX_FMT_YUV420P open it if avcodec_open c codec 0 fprintf stderr could not open codec n exit 1 f fopen filename wb if f fprintf stderr could not open s n filename exit 1 alloc image and.. open it if avcodec_open c codec 0 fprintf stderr could not open codec n exit 1 f fopen filename wb if f fprintf stderr could not open s n filename exit 1 alloc image and output buffer outbuf_size 100000 outbuf malloc outbuf_size size c width..

Data format from recording using Audio Queue framework

http://stackoverflow.com/questions/3963827/data-format-from-recording-using-audio-queue-framework

AudioQueueEnqueueBuffer inAQ inBuffer 0 NULL AudioQueueEnqueueBuffer failed catch CAXException e char buf 256 fprintf stderr Error s s n e.mOperation e.FormatError buf You can see that I'm passing the data in inBuffer mAudioData to SoundTouch. In..

iPhone: How to read application logs from device

http://stackoverflow.com/questions/5179108/iphone-how-to-read-application-logs-from-device

stringByAppendingPathComponent fileName freopen logFilePath cStringUsingEncoding NSASCIIStringEncoding a stderr The last sentence is the one that actually redirects the output. So once you have done that your app logs will be stored..

kCGColorSpaceGenericRGB is deprecated on iPhone?

http://stackoverflow.com/questions/560254/kcgcolorspacegenericrgb-is-deprecated-on-iphone

CGColorSpaceCreateWithName kCGColorSpaceGenericRGB 2 bitmapData malloc bitmapByteCount 3 if bitmapData NULL fprintf stderr Memory not allocated return NULL context CGBitmapContextCreate bitmapData 4 pixelsWide pixelsHigh 8 bits per component.. bitmapBytesPerRow colorSpace kCGImageAlphaPremultipliedLast if context NULL free bitmapData 5 fprintf stderr Context not created return NULL CGColorSpaceRelease colorSpace 6 return context 7 A warning says 'kCGColorSpaceGenericRGB'..

NSLog into file

http://stackoverflow.com/questions/7271528/nslog-into-file

the error stream to a file of your liking using freopen freopen path cStringUsingEncoding NSASCIIStringEncoding a stderr See this explanation and sample project for details. Or you can override NSLog with a custom function using a macro. Example.. @ n NSString msg NSString alloc initWithFormat NSString stringWithFormat @ @ format arguments ap va_end ap fprintf stderr s 50s 3d s prefix UTF8String funcName lineNumber msg UTF8String msg release @end And import it project wide adding the following.. @ logfile.txt create if needed if NSFileManager defaultManager fileExistsAtPath path fprintf stderr Creating file at s path UTF8String NSData data writeToFile path atomically YES append NSFileHandle handle NSFileHandle..

Recording mp3 instead of caf file

http://stackoverflow.com/questions/9399019/recording-mp3-instead-of-caf-file

true XThrowIfError AudioQueueStart mQueue NULL AudioQueueStart failed catch CAXException e char buf 256 fprintf stderr Error s s n e.mOperation e.FormatError buf catch ... fprintf stderr An unknown error occurred n Am I missing any settings.. failed catch CAXException e char buf 256 fprintf stderr Error s s n e.mOperation e.FormatError buf catch ... fprintf stderr An unknown error occurred n Am I missing any settings or what's wrong with my code mp3 be supported from apple https developer.apple.com..