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2014/10/15 ¤U¤È 10:13:38
iphone Programming Glossary: samplesHow do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder is triggered by the user pressing a button on the navBar. The recording uses cd quality 44100 samples stereo 2 channels linear pcm. Beware if you want to use a different format especially an encoded one..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework was 44.1kHz so that's ~44 frames sec. So our time window is whatever the time duration of 1024 samples is ie 1 44 s. So we would pack A with 1024 floats from the mic set log2n 10 2^10 1024 precalculate some.. once when it quits. DON'T do it lots of times it is expensive. let's say log2n 8 so n 2^8 256 samples or 'harmonics' or 'terms' if we pre calculate the 256th roots of unity of which there are 256 that will..
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 ¦] 3 Write some samples Or you can use AVAssetWriterInputPixelBufferAdaptor. That lets you feed the writer input data from a..
How can I replicate the trashing animation of Mail.app http://stackoverflow.com/questions/428110/how-can-i-replicate-the-trashing-animation-of-mail-app there are some limits for example I cannot animate the bin itself. Do you have any suggestion Code samples Cheers Davide iphone cocoa touch share improve this question Use the suckEffect type on an animation...
Is there any framework to highlight text on pdf file after rendering on the iphone http://stackoverflow.com/questions/5335799/is-there-any-framework-to-highlight-text-on-pdf-file-after-rendering-on-the-iph framework to import or any libraries available After spending more time with google I found some samples to search a word on pdf those are fastsamplepdf from github random ideas MY WORK I seen fastsample pdf..
GCD, Threads, Program Flow and UI Updating http://stackoverflow.com/questions/7290931/gcd-threads-program-flow-and-ui-updating c ios multithreading osx share improve this question GCD and performSelectorInBackground samples below. But first let's look at your code. You cannot wait where you want to in the code above. Here's..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample basics and code sample closed As a beginner I'm struggling with iCloud. There are some samples but they are usually quite detailed on the developer forum there is one for iCloud and CoreData which..
Are there any good UIScrollView Tutorials on the net? http://stackoverflow.com/questions/820557/are-there-any-good-uiscrollview-tutorials-on-the-net This goes to community wiki. iphone uikit uiscrollview share improve this question Some good samples with the basic functionalities covered very simple uiscrollview demo Scrolling UiScrollViewTutorial..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder there are no examples at all. Here is my working code. Recording is triggered by the user pressing a button on the navBar. The recording uses cd quality 44100 samples stereo 2 channels linear pcm. Beware if you want to use a different format especially an encoded one make sure you fully understand how to set the AVAudioRecorder..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework gets in 1024 floats. Supposing the microphone sampling rate was 44.1kHz so that's ~44 frames sec. So our time window is whatever the time duration of 1024 samples is ie 1 44 s. So we would pack A with 1024 floats from the mic set log2n 10 2^10 1024 precalculate some bobbins setupReal and vDSP_fft_zrip setupReal A stride log2n.. when the app loads and call the complimentary release function once when it quits. DON'T do it lots of times it is expensive. let's say log2n 8 so n 2^8 256 samples or 'harmonics' or 'terms' if we pre calculate the 256th roots of unity of which there are 256 that will save us time later. Note that this call creates an array..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie canAddInput writerInput videoWriter addInput writerInput 2 Start a session videoWriter startWriting videoWriter startSessionAtSourceTime ¦] 3 Write some samples Or you can use AVAssetWriterInputPixelBufferAdaptor. That lets you feed the writer input data from a CVPixelBuffer that ™s quite easy to create from a CGImage. writerInput..
How can I replicate the trashing animation of Mail.app http://stackoverflow.com/questions/428110/how-can-i-replicate-the-trashing-animation-of-mail-app iPhone SDK Presently I am using a custom made animation but there are some limits for example I cannot animate the bin itself. Do you have any suggestion Code samples Cheers Davide iphone cocoa touch share improve this question Use the suckEffect type on an animation. Also spewEffect genieEffect unGenieEffect twist tubey..
Is there any framework to highlight text on pdf file after rendering on the iphone http://stackoverflow.com/questions/5335799/is-there-any-framework-to-highlight-text-on-pdf-file-after-rendering-on-the-iph co ordinates of the word on the page Is there any free framework to import or any libraries available After spending more time with google I found some samples to search a word on pdf those are fastsamplepdf from github random ideas MY WORK I seen fastsample pdf code I understood only the parsing of the pdf to text using..
GCD, Threads, Program Flow and UI Updating http://stackoverflow.com/questions/7290931/gcd-threads-program-flow-and-ui-updating NSString stringWithFormat @ d maxMoves iphone objective c ios multithreading osx share improve this question GCD and performSelectorInBackground samples below. But first let's look at your code. You cannot wait where you want to in the code above. Here's the code you had. Where you say wait in the comment is incorrect...
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample basics and code sample closed As a beginner I'm struggling with iCloud. There are some samples but they are usually quite detailed on the developer forum there is one for iCloud and CoreData which is massive . The apple docs are OK but I still can't see the..
Are there any good UIScrollView Tutorials on the net? http://stackoverflow.com/questions/820557/are-there-any-good-uiscrollview-tutorials-on-the-net Tutorials on the net Any good links are highly appreciated This goes to community wiki. iphone uikit uiscrollview share improve this question Some good samples with the basic functionalities covered very simple uiscrollview demo Scrolling UiScrollViewTutorial implementing tap to zoom in uiscrollview on an iphone multiple..
How do I record audio on iPhone with AVAudioRecorder? http://stackoverflow.com/questions/1010343/how-do-i-record-audio-on-iphone-with-avaudiorecorder working code. Recording is triggered by the user pressing a button on the navBar. The recording uses cd quality 44100 samples stereo 2 channels linear pcm. Beware if you want to use a different format especially an encoded one make sure you fully..
http://stackoverflow.com/questions/11323326/xml-parsing-in-ios-tutorial share improve this question Please use below links for best XML parsing examples and practice. Using below samples user can easily understand XML Parsing in iOS. 1 Sample 1 2 Sample 2 3 Sample 3 4 Sample 4 5 Sample 5 share improve this..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework sampling rate was 44.1kHz so that's ~44 frames sec. So our time window is whatever the time duration of 1024 samples is ie 1 44 s. So we would pack A with 1024 floats from the mic set log2n 10 2^10 1024 precalculate some bobbins setupReal.. release function once when it quits. DON'T do it lots of times it is expensive. let's say log2n 8 so n 2^8 256 samples or 'harmonics' or 'terms' if we pre calculate the 256th roots of unity of which there are 256 that will save us time later...
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie addInput writerInput 2 Start a session videoWriter startWriting videoWriter startSessionAtSourceTime ¦] 3 Write some samples Or you can use AVAssetWriterInputPixelBufferAdaptor. That lets you feed the writer input data from a CVPixelBuffer that..
Record and play audio Simultaneously http://stackoverflow.com/questions/4215180/record-and-play-audio-simultaneously
How can I replicate the trashing animation of Mail.app http://stackoverflow.com/questions/428110/how-can-i-replicate-the-trashing-animation-of-mail-app made animation but there are some limits for example I cannot animate the bin itself. Do you have any suggestion Code samples Cheers Davide iphone cocoa touch share improve this question Use the suckEffect type on an animation. Also spewEffect..
Drawing waveform with AVAssetReader http://stackoverflow.com/questions/5032775/drawing-waveform-with-avassetreader First a generic rendering method that takes a pointer to averaged sample data and returns a UIImage. Note these samples are not playable audio samples. UIImage audioImageGraph SInt16 samples normalizeMax SInt16 normalizeMax sampleCount NSInteger.. method that takes a pointer to averaged sample data and returns a UIImage. Note these samples are not playable audio samples. UIImage audioImageGraph SInt16 samples normalizeMax SInt16 normalizeMax sampleCount NSInteger sampleCount channelCount.. sample data and returns a UIImage. Note these samples are not playable audio samples. UIImage audioImageGraph SInt16 samples normalizeMax SInt16 normalizeMax sampleCount NSInteger sampleCount channelCount NSInteger channelCount imageHeight float..
Uploading live streaming video from iPhone [duplicate] http://stackoverflow.com/questions/5062266/uploading-live-streaming-video-from-iphone to the server one by one. The answer is complex... Basically 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..
Is there any framework to highlight text on pdf file after rendering on the iphone http://stackoverflow.com/questions/5335799/is-there-any-framework-to-highlight-text-on-pdf-file-after-rendering-on-the-iph Is there any free framework to import or any libraries available After spending more time with google I found some samples to search a word on pdf those are fastsamplepdf from github random ideas MY WORK I seen fastsample pdf code I understood..
GCD, Threads, Program Flow and UI Updating http://stackoverflow.com/questions/7290931/gcd-threads-program-flow-and-ui-updating iphone objective c ios multithreading osx share improve this question GCD and performSelectorInBackground samples below. But first let's look at your code. You cannot wait where you want to in the code above. Here's the code you had...
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample basics and code sample closed As a beginner I'm struggling with iCloud. There are some samples but they are usually quite detailed on the developer forum there is one for iCloud and CoreData which is massive . The apple..
Are there any good UIScrollView Tutorials on the net? http://stackoverflow.com/questions/820557/are-there-any-good-uiscrollview-tutorials-on-the-net highly appreciated This goes to community wiki. iphone uikit uiscrollview share improve this question Some good samples with the basic functionalities covered very simple uiscrollview demo Scrolling UiScrollViewTutorial implementing tap to..
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