2014/10/15 下午 10:10:29

iphone Programming Glossary: instruction

How can I add overlay text on a video, then re-encode it?

http://stackoverflow.com/questions/10190333/how-can-i-add-overlay-text-on-a-video-then-re-encode-it

videoLayer inLayer parentLayer AVMutableVideoCompositionInstruction instruction AVMutableVideoCompositionInstruction videoCompositionInstruction instruction.timeRange CMTimeRangeMake kCMTimeZero mixComposition.. AVMutableVideoCompositionInstruction instruction AVMutableVideoCompositionInstruction videoCompositionInstruction instruction.timeRange CMTimeRangeMake kCMTimeZero mixComposition duration AVAssetTrack videoTrack mixComposition tracksWithMediaType.. layerInstruction AVMutableVideoCompositionLayerInstruction videoCompositionLayerInstructionWithAssetTrack videoTrack instruction.layerInstructions NSArray arrayWithObject layerInstruction videoComp.instructions NSArray arrayWithObject instruction AVAssetExportSession..

Installing Core-Plot in Xcode 4.2 for iOS project

http://stackoverflow.com/questions/10260291/installing-core-plot-in-xcode-4-2-for-ios-project

Core Plot in Xcode 4.2 for iOS project I am trying to install Core Plot into my iOS app. I have followed the instructions on the Core Plot website but they are very brief and have no screenshots. I have pasted the instructions below and explained.. followed the instructions on the Core Plot website but they are very brief and have no screenshots. I have pasted the instructions below and explained where I am stuck... First drag the CorePlot CocoaTouch.xcodeproj file into your iPhone application's.. line in the appropriate source files within your project #import CorePlot CocoaTouch.h Done Is anyone able to put the instruction I am struggling with into more laymans terms iphone objective c ios xcode4.2 core plot share improve this question ..

What's the difference between KERN_INVALID_ADDRESS and KERN_PROTECTION_FAILURE?

http://stackoverflow.com/questions/1282428/whats-the-difference-between-kern-invalid-address-and-kern-protection-failure

a certain byte boundary. Because your data access here is aligned for a 64 bit value 8 it must be trying to execute an instruction that fetches a 128 bit value such as compare and exchange instruction CMPXCHG16B . In any case you can see from the example.. a 64 bit value 8 it must be trying to execute an instruction that fetches a 128 bit value such as compare and exchange instruction CMPXCHG16B . In any case you can see from the example here that it's 0x00000008 which probably means you're accessing a..

Facebook SDK changes to Login in Pop-up view

http://stackoverflow.com/questions/14214903/facebook-sdk-changes-to-login-in-pop-up-view

How do I do inline assembly on the IPhone?

http://stackoverflow.com/questions/238010/how-do-i-do-inline-assembly-on-the-iphone

asm . Secondly by default XCode generates a compilation target that compiles inline assembly against the ARM Thumb instruction set so usat wasn't recognized as a proper instruction. To fix this do Get Info on the Target. Scroll down to the section.. target that compiles inline assembly against the ARM Thumb instruction set so usat wasn't recognized as a proper instruction. To fix this do Get Info on the Target. Scroll down to the section GCC 4.0 Code Generation and uncheck Compile for Thumb..

how to control orientation of video assembled with AVMutableComposition

http://stackoverflow.com/questions/4175060/how-to-control-orientation-of-video-assembled-with-avmutablecomposition

CGSizeMake 320 240 videoComposition.frameDuration CMTimeMake 1 30 AVMutableVideoCompositionInstruction instruction AVMutableVideoCompositionInstruction videoCompositionInstruction instruction.timeRange CMTimeRangeMake kCMTimeZero CMTimeMakeWithSeconds.. 1 30 AVMutableVideoCompositionInstruction instruction AVMutableVideoCompositionInstruction videoCompositionInstruction instruction.timeRange CMTimeRangeMake kCMTimeZero CMTimeMakeWithSeconds 60 30 AVMutableVideoCompositionLayerInstruction rotator AVMutableVideoCompositionLayerInstruction.. CGAffineTransformConcat translateToCenter rotateBy90Degrees rotator setTransform finalTransform atTime kCMTimeZero instruction.layerInstructions NSArray arrayWithObject rotator videoComposition.instructions NSArray arrayWithObject instruction share..

When to access property with self and when not to?

http://stackoverflow.com/questions/4884231/when-to-access-property-with-self-and-when-not-to

new_val you're just copying the reference to the memory location. No additional work is done there except one assembly instruction. There is one more thing to mention atomic and nonatomic. With atomic the synthesized setter getter will ensure that a whole..

A simple sync with the iPhone DropBox API

http://stackoverflow.com/questions/5950168/a-simple-sync-with-the-iphone-dropbox-api

forward but I have yet to come a across a simple and plain explanation of how to do a simple sync. I followed all the instruction you can find in the readme which comes withe DropBox API. To test the whole thing I have created two buttons to download..

How to read objective-c stack traces

http://stackoverflow.com/questions/6462214/how-to-read-objective-c-stack-traces

0 MyApp 0x000833a3 TFCrashHandler backtrace 26 Crash was generated from TFCrashHandler backtrace 26 from whatever instruction fell at that symbol location 26 bytes. If that is really the bottom of your stack trace and it crashed there then the TCrashHandler.. MyApp 0x000803f1 msgpack_unpack_next 112 Ooooh... trickzy. Someone is using C to parse stuff. And it crashed. Whatever instruction was 112 bytes from the entry point to the function went boom . But not really because it called the signal handler and was..

How to combine video clips with different orientation using AVFoundation

http://stackoverflow.com/questions/6575128/how-to-combine-video-clips-with-different-orientation-using-avfoundation

seems can be used to transform AVAsset but I am not sure how to create and apply several different layer instruction to corresponding clips and use then in the composition AVMutableComposition Any help would be appreciated iphone objective.. videoComposition.frameDuration CMTimeMake 1 30 videoComposition.renderScale 1.0 AVMutableVideoCompositionInstruction instruction AVMutableVideoCompositionInstruction videoCompositionInstruction AVMutableVideoCompositionLayerInstruction layerInstruction.. CMTimeGetSeconds compositionVideoTrack.timeRange.duration time CMTimeGetSeconds sourceVideoTrack.timeRange.duration instruction.layerInstructions NSArray arrayWithObject layerInstruction instruction.timeRange compositionVideoTrack.timeRange videoComposition.instructions..

Exception Types in iOS crash logs

http://stackoverflow.com/questions/7446655/exception-types-in-ios-crash-logs

Why does this code cause “EXC_BAD_INSTRUCTION”?

http://stackoverflow.com/questions/8287621/why-does-this-code-cause-exc-bad-instruction

ios grand central dispatch share improve this question I tried this code and it does indeed die with illegal instruction. So I did some digging and found that it's dying in _dispatch_semaphore_dispose. So let's look at what that is ARMv7 here.. r1 r4 #32 000040aa 4288 cmp r0 r1 000040ac da00 bge.n 0x40b0 000040ae defe trap ... It dies at 0x40ae which is a duff instruction put there so that it crashes if the bge.n doesn't make us branch to jump over it. The reason it's failing is because r0..