I am trying to take a video file read it in using AVAssetReader and pass the audio off to CoreAudio for processing (adding effects and stuff) before saving it back out to disk using AVAssetWriter. I would like to point out that if i set the componentSubType on AudioComponentDescription of my output node as RemoteIO, things play correctly though the speakers. This makes me confident that my AUGraph is properly setup as I can hear things working. I am setting the subType to GenericOutput though so I can do the rendering myself and get back the adjusted audio.I am reading in the audio and i pass the CMSampleBufferRef off to copyBuffer. This puts the audio into a circular buffer that will be read in later.- (void)copyBuffer:(CMSampleBufferRef)buf { if (_readyForMoreBytes == NO) { return; } AudioBufferList abl; CMBlockBufferRef blockBuffer; CMSampleBufferGetAudioBufferListWithRetainedBlockBuffer(buf, NULL, &abl, sizeof(abl), NULL, NULL, kCMSampleBufferFlag_AudioBufferList_Assure16ByteAlignment, &blockBuffer); UInt32 size = (unsigned int)CMSampleBufferGetTotalSampleSize(buf); BOOL bytesCopied = TPCircularBufferProduceBytes(&circularBuffer, abl.mBuffers[0].mData, size); if (!bytesCopied){ / _readyForMoreBytes = NO; if (size > kRescueBufferSize){ NSLog(@"Unable to allocate enought space for rescue buffer, dropping audio frame"); } else { if (rescueBuffer == nil) { rescueBuffer = malloc(kRescueBufferSize); } rescueBufferSize = size; memcpy(rescueBuffer, abl.mBuffers[0].mData, size); } } CFRelease(blockBuffer); if (!self.hasBuffer && bytesCopied > 0) { self.hasBuffer = YES; } }Next I call processOutput. This will do a manual reder on the outputUnit. When AudioUnitRender is called it invokes the playbackCallback below, which is what is hooked up as input callback on my first node. playbackCallback pulls the data off the circular buffer and feeds it into the audioBufferList passed in. Like I said before if the output is set as RemoteIO this will cause the audio to correctly be played on the speakers. When AudioUnitRender finishes, it returns noErr and the bufferList object contains valid data. When I call CMSampleBufferSetDataBufferFromAudioBufferList though I get kCMSampleBufferError_RequiredParameterMissing (-12731).-(CMSampleBufferRef)processOutput { if(self.offline == NO) { return NULL; } AudioUnitRenderActionFlags flags = 0; AudioTimeStamp inTimeStamp; memset(&inTimeStamp, 0, sizeof(AudioTimeStamp)); inTimeStamp.mFlags = kAudioTimeStampSampleTimeValid; UInt32 busNumber = 0; UInt32 numberFrames = 512; inTimeStamp.mSampleTime = 0; UInt32 channelCount = 2; AudioBufferList *bufferList = (AudioBufferList*)malloc(sizeof(AudioBufferList)+sizeof(AudioBuffer)*(channelCount-1)); bufferList->mNumberBuffers = channelCount; for (int j=0; j<channelCount; j++) { AudioBuffer buffer = {0}; buffer.mNumberChannels = 1; buffer.mDataByteSize = numberFrames*sizeof(SInt32); buffer.mData = calloc(numberFrames,sizeof(SInt32)); bufferList->mBuffers[j] = buffer; } CheckError(AudioUnitRender(outputUnit, &flags, &inTimeStamp, busNumber, numberFrames, bufferList), @"AudioUnitRender outputUnit"); CMSampleBufferRef sampleBufferRef = NULL; CMFormatDescriptionRef format = NULL; CMSampleTimingInfo timing = { CMTimeMake(1, 44100), kCMTimeZero, kCMTimeInvalid }; AudioStreamBasicDescription audioFormat = self.audioFormat; CheckError(CMAudioFormatDescriptionCreate(kCFAllocatorDefault, &audioFormat, 0, NULL, 0, NULL, NULL, &format), @"CMAudioFormatDescriptionCreate"); CheckError(CMSampleBufferCreate(kCFAllocatorDefault, NULL, false, NULL, NULL, format, numberFrames, 1, &timing, 0, NULL, &sampleBufferRef), @"CMSampleBufferCreate"); CheckError(CMSampleBufferSetDataBufferFromAudioBufferList(sampleBufferRef, kCFAllocatorDefault, kCFAllocatorDefault, 0, bufferList), @"CMSampleBufferSetDataBufferFromAudioBufferList"); return sampleBufferRef; }static OSStatus playbackCallback(void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData) { int numberOfChannels = ioData->mBuffers[0].mNumberChannels; SInt16 *outSample = (SInt16 *)ioData->mBuffers[0].mData; / memset(outSample, 0, ioData->mBuffers[0].mDataByteSize); MyAudioPlayer *p = (__bridge MyAudioPlayer *)inRefCon; if (p.hasBuffer){ int32_t availableBytes; SInt16 *bufferTail = TPCircularBufferTail([p getBuffer], &availableBytes); int32_t requestedBytesSize = inNumberFrames * kUnitSize * numberOfChannels; int bytesToRead = MIN(availableBytes, requestedBytesSize); memcpy(outSample, bufferTail, bytesToRead); TPCircularBufferConsume([p getBuffer], bytesToRead); if (availableBytes <= requestedBytesSize*2){ [p setReadyForMoreBytes]; } if (availableBytes <= requestedBytesSize) { p.hasBuffer = NO; } } return noErr; }The CMSampleBufferRef I pass in looks valid (below is a dump of the object from the debugger)CMSampleBuffer 0x7f87d2a03120 retainCount: 1 allocator: 0x103333180 invalid = NO dataReady = NO makeDataReadyCallback = 0x0 makeDataReadyRefcon = 0x0 formatDescription = <CMAudioFormatDescription 0x7f87d2a02b20 [0x103333180]> { mediaType:'soun' mediaSubType:'lpcm' mediaSpecific: { ASBD: { mSampleRate: 44100.000000 mFormatID: 'lpcm' mFormatFlags: 0xc2c mBytesPerPacket: 2 mFramesPerPacket: 1 mBytesPerFrame: 2 mChannelsPerFrame: 1 mBitsPerChannel: 16 } cookie: {(null)} ACL: {(null)} } extensions: {(null)} } sbufToTrackReadiness = 0x0 numSamples = 512 sampleTimingArray[1] = { {PTS = {0/1 = 0.000}, DTS = {INVALID}, duration = {1/44100 = 0.000}}, } dataBuffer = 0x0The buffer list looks like thisPrinting description of bufferList: (AudioBufferList *) bufferList = 0x00007f87d280b0a0 Printing description of bufferList->mNumberBuffers: (UInt32) mNumberBuffers = 2 Printing description of bufferList->mBuffers: (AudioBuffer [1]) mBuffers = { [0] = (mNumberChannels = 1, mDataByteSize = 2048, mData = 0x00007f87d3008c00) }Really at a loss here, hoping someone can help. Thanks,In case it matters i am debuggin this in ios 8.3 simulator and the audio is coming from a mp4 that i shot on my iphone 6 then saved to my laptop.

When using named colors in your interface builder files their values get set AFTER viewDidLoad() and awakeFromNib() get called. Making it difficult 😠 to change the values at run time. Is this by design? is their some other method i need to override so I can change the colors at run time? Should I just stop using named colors?In my test project I have a view and I set the background to a named color then try and set that background to somthing else in viewDidLoad(). If I don't use a named color things work as you would expect. This app only supports iOS 11+I made a custom view called MyView and log the back trace when the background is set. you see it first set when the control is being created in initWithCoder(lldb) bt * thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1 * frame #0: 0x000000010eba36b2 ***`MyView.backgroundColor.didset(oldValue=nil, self=0x00007fb97e707eb0) at MyView.swift:17 frame #1: 0x000000010eba3674 ***`MyView.backgroundColor.setter(newValue=0x000060000006f640, self=0x00007fb97e707eb0) at MyView.swift:0 frame #2: 0x000000010eba35ac ***`@objc MyView.backgroundColor.setter at MyView.swift:0 frame #3: 0x000000010fde7ecc UIKit`-[UIView initWithCoder:] + 1242 frame #4: 0x000000010eba3a1a ***`MyView.init(aDecoder=0x00007fb98000a600) at MyView.swift:0 frame #5: 0x000000010eba3abf ***`@objc MyView.init(coder:) at MyView.swift:0 frame #6: 0x00000001101d4725 UIKit`-[UIClassSwapper initWithCoder:] + 246 frame #7: 0x000000011042688c UIKit`UINibDecoderDecodeObjectForValue + 704 frame #8: 0x00000001104265bf UIKit`-[UINibDecoder decodeObjectForKey:] + 246 frame #9: 0x00000001101d43f1 UIKit`-[UIRuntimeConnection initWithCoder:] + 178 frame #10: 0x000000011042688c UIKit`UINibDecoderDecodeObjectForValue + 704 frame #11: 0x0000000110426a2a UIKit`UINibDecoderDecodeObjectForValue + 1118 frame #12: 0x00000001104265bf UIKit`-[UINibDecoder decodeObjectForKey:] + 246 frame #13: 0x00000001101d35e2 UIKit`-[UINib instantiateWithOwner:options:] + 1262 frame #14: 0x000000010feee0d7 UIKit`-[UIViewController _loadViewFromNibNamed:bundle:] + 383 frame #15: 0x000000010feeea04 UIKit`-[UIViewController loadView] + 177 frame #16: 0x000000010feeed21 UIKit`-[UIViewController loadViewIfRequired] + 175 frame #17: 0x000000010feef574 UIKit`-[UIViewController view] + 27 frame #18: 0x000000010fdbd123 UIKit`-[UIWindow addRootViewControllerViewIfPossible] + 122 frame #19: 0x000000010fdbd834 UIKit`-[UIWindow _setHidden:forced:] + 294 frame #20: 0x000000010fdd05cc UIKit`-[UIWindow makeKeyAndVisible] + 42 frame #21: 0x000000010fd443da UIKit`-[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 4739 frame #22: 0x000000010fd495cb UIKit`-[UIApplication _runWithMainScene:transitionContext:completion:] + 1677 frame #23: 0x000000011010bf7e UIKit`__111-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:]_block_invoke + 866 frame #24: 0x00000001104dea39 UIKit`+[_UICanvas _enqueuePostSettingUpdateTransactionBlock:] + 153 frame #25: 0x000000011010bbba UIKit`-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:] + 236 frame #26: 0x000000011010c3db UIKit`-[__UICanvasLifecycleMonitor_Compatability activateEventsOnly:withContext:completion:] + 675 frame #27: 0x0000000110a7d614 UIKit`__82-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:]_block_invoke + 299 frame #28: 0x0000000110a7d4ae UIKit`-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:] + 433 frame #29: 0x000000011076175d UIKit`__125-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:]_block_invoke + 221 frame #30: 0x000000011095c4b7 UIKit`_performActionsWithDelayForTransitionContext + 100 frame #31: 0x0000000110761627 UIKit`-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:] + 223 frame #32: 0x00000001104de0e0 UIKit`-[_UICanvas scene:didUpdateWithDiff:transitionContext:completion:] + 392 frame #33: 0x000000010fd47eac UIKit`-[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 515 frame #34: 0x000000011031abcb UIKit`-[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 361 frame #35: 0x00000001150d72f3 FrontBoardServices`-[FBSSceneImpl _didCreateWithTransitionContext:completion:] + 331 frame #36: 0x00000001150dfcfa FrontBoardServices`__56-[FBSWorkspace client:handleCreateScene:withCompletion:]_block_invoke_2 + 225 frame #37: 0x000000011420c7ec libdispatch.dylib`_dispatch_client_callout + 8 frame #38: 0x0000000114211db8 libdispatch.dylib`_dispatch_block_invoke_direct + 592 frame #39: 0x000000011510b470 FrontBoardServices`__FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 24 frame #40: 0x000000011510b12e FrontBoardServices`-[FBSSerialQueue _performNext] + 439 frame #41: 0x000000011510b68e FrontBoardServices`-[FBSSerialQueue _performNextFromRunLoopSource] + 45 frame #42: 0x000000011304abb1 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 frame #43: 0x000000011302f4af CoreFoundation`__CFRunLoopDoSources0 + 271 frame #44: 0x000000011302ea6f CoreFoundation`__CFRunLoopRun + 1263 frame #45: 0x000000011302e30b CoreFoundation`CFRunLoopRunSpecific + 635 frame #46: 0x00000001159a0a73 GraphicsServices`GSEventRunModal + 62 frame #47: 0x000000010fd4b057 UIKit`UIApplicationMain + 159 frame #48: 0x000000010eba5a67 ***`main at AppDelegate.swift:12 frame #49: 0x0000000114289955 libdyld.dylib`start + 1 frame #50: 0x0000000114289955 libdyld.dylib`start + 1 (lldb)Then in my viewDidLoad() method I set it(lldb) bt * thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1 * frame #0: 0x000000010eba36b2 ***`MyView.backgroundColor.didset(oldValue=0x0000608000271d40, self=0x00007fb97e707eb0) at MyView.swift:17 frame #1: 0x000000010eba3674 ***`MyView.backgroundColor.setter(newValue=0x0000608000272000, self=0x00007fb97e707eb0) at MyView.swift:0 frame #2: 0x000000010eba35ac ***`@objc MyView.backgroundColor.setter at MyView.swift:0 frame #3: 0x000000010eba42b7 ***`ViewController.viewDidLoad(self=0x00007fb981504fa0) at ViewController.swift:20 frame #4: 0x000000010eba4484 ***`@objc ViewController.viewDidLoad() at ViewController.swift:0 frame #5: 0x000000010feef131 UIKit`-[UIViewController loadViewIfRequired] + 1215 frame #6: 0x000000010feef574 UIKit`-[UIViewController view] + 27 frame #7: 0x000000010fdbd123 UIKit`-[UIWindow addRootViewControllerViewIfPossible] + 122 frame #8: 0x000000010fdbd834 UIKit`-[UIWindow _setHidden:forced:] + 294 frame #9: 0x000000010fdd05cc UIKit`-[UIWindow makeKeyAndVisible] + 42 frame #10: 0x000000010fd443da UIKit`-[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 4739 frame #11: 0x000000010fd495cb UIKit`-[UIApplication _runWithMainScene:transitionContext:completion:] + 1677 frame #12: 0x000000011010bf7e UIKit`__111-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:]_block_invoke + 866 frame #13: 0x00000001104dea39 UIKit`+[_UICanvas _enqueuePostSettingUpdateTransactionBlock:] + 153 frame #14: 0x000000011010bbba UIKit`-[__UICanvasLifecycleMonitor_Compatability _scheduleFirstCommitForScene:transition:firstActivation:completion:] + 236 frame #15: 0x000000011010c3db UIKit`-[__UICanvasLifecycleMonitor_Compatability activateEventsOnly:withContext:completion:] + 675 frame #16: 0x0000000110a7d614 UIKit`__82-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:]_block_invoke + 299 frame #17: 0x0000000110a7d4ae UIKit`-[_UIApplicationCanvas _transitionLifecycleStateWithTransitionContext:completion:] + 433 frame #18: 0x000000011076175d UIKit`__125-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:]_block_invoke + 221 frame #19: 0x000000011095c4b7 UIKit`_performActionsWithDelayForTransitionContext + 100 frame #20: 0x0000000110761627 UIKit`-[_UICanvasLifecycleSettingsDiffAction performActionsForCanvas:withUpdatedScene:settingsDiff:fromSettings:transitionContext:] + 223 frame #21: 0x00000001104de0e0 UIKit`-[_UICanvas scene:didUpdateWithDiff:transitionContext:completion:] + 392 frame #22: 0x000000010fd47eac UIKit`-[UIApplication workspace:didCreateScene:withTransitionContext:completion:] + 515 frame #23: 0x000000011031abcb UIKit`-[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] + 361 frame #24: 0x00000001150d72f3 FrontBoardServices`-[FBSSceneImpl _didCreateWithTransitionContext:completion:] + 331 frame #25: 0x00000001150dfcfa FrontBoardServices`__56-[FBSWorkspace client:handleCreateScene:withCompletion:]_block_invoke_2 + 225 frame #26: 0x000000011420c7ec libdispatch.dylib`_dispatch_client_callout + 8 frame #27: 0x0000000114211db8 libdispatch.dylib`_dispatch_block_invoke_direct + 592 frame #28: 0x000000011510b470 FrontBoardServices`__FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 24 frame #29: 0x000000011510b12e FrontBoardServices`-[FBSSerialQueue _performNext] + 439 frame #30: 0x000000011510b68e FrontBoardServices`-[FBSSerialQueue _performNextFromRunLoopSource] + 45 frame #31: 0x000000011304abb1 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 frame #32: 0x000000011302f4af CoreFoundation`__CFRunLoopDoSources0 + 271 frame #33: 0x000000011302ea6f CoreFoundation`__CFRunLoopRun + 1263 frame #34: 0x000000011302e30b CoreFoundation`CFRunLoopRunSpecific + 635 frame #35: 0x00000001159a0a73 GraphicsServices`GSEventRunModal + 62 frame #36: 0x000000010fd4b057 UIKit`UIApplicationMain + 159 frame #37: 0x000000010eba5a67 ***`main at AppDelegate.swift:12 frame #38: 0x0000000114289955 libdyld.dylib`start + 1 frame #39: 0x0000000114289955 libdyld.dylib`start + 1 (lldb)Then it is set by _UIColorAttributeTraitStorage applyRecordsMatchingTraitCollection after that.(lldb) bt * thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1 * frame #0: 0x000000010eba36b2 ***`MyView.backgroundColor.didset(oldValue=0x0000608000272000, self=0x00007fb97e707eb0) at MyView.swift:17 frame #1: 0x000000010eba3674 ***`MyView.backgroundColor.setter(newValue=0x0000608000036240, self=0x00007fb97e707eb0) at MyView.swift:0 frame #2: 0x000000010eba35ac ***`@objc MyView.backgroundColor.setter at MyView.swift:0 frame #3: 0x000000010eed0b47 Foundation`-[NSObject(NSKeyValueCoding) setValue:forKey:] + 292 frame #4: 0x000000010fe19f77 UIKit`-[UIView(CALayerDelegate) setValue:forKey:] + 172 frame #5: 0x00000001100dcac3 UIKit`-[NSObject(UIIBPrivate) _uikit_applyValueFromTraitStorage:forKeyPath:] + 50 frame #6: 0x00000001100de12d UIKit`-[_UIColorAttributeTraitStorage applyRecordsMatchingTraitCollection:] + 160 frame #7: 0x00000001100dd38f UIKit`-[NSObject(_UITraitStorageAccessors) _applyTraitStorageRecordsForTraitCollection:] + 261 frame #8: 0x000000010fdeecf0 UIKit`-[UIView _traitCollectionDidChangeInternal:] + 77 frame #9: 0x000000010fdeef1d UIKit`-[UIView _wrappedProcessTraitCollectionDidChange:forceNotification:] + 163 frame #10: 0x000000010fdef21f UIKit`-[UIView _processDidChangeRecursivelyFromOldTraits:toCurrentTraits:forceNotification:] + 129 frame #11: 0x000000010fe1a740 UIKit`-[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 1411 frame #12: 0x0000000116817456 QuartzCore`-[CALayer layoutSublayers] + 177 frame #13: 0x000000011681b667 QuartzCore`CA::Layer::layout_if_needed(CA::Transaction*) + 395 frame #14: 0x00000001167a20fb QuartzCore`CA::Context::commit_transaction(CA::Transaction*) + 343 frame #15: 0x00000001167cf79c QuartzCore`CA::Transaction::commit() + 568 frame #16: 0x000000010fd65269 UIKit`__34-[UIApplication _firstCommitBlock]_block_invoke_2 + 141 frame #17: 0x000000011304ab0c CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12 frame #18: 0x000000011302f2db CoreFoundation`__CFRunLoopDoBlocks + 331 frame #19: 0x000000011302ea84 CoreFoundation`__CFRunLoopRun + 1284 frame #20: 0x000000011302e30b CoreFoundation`CFRunLoopRunSpecific + 635 frame #21: 0x00000001159a0a73 GraphicsServices`GSEventRunModal + 62 frame #22: 0x000000010fd4b057 UIKit`UIApplicationMain + 159 frame #23: 0x000000010eba5a67 ***`main at AppDelegate.swift:12 frame #24: 0x0000000114289955 libdyld.dylib`start + 1 frame #25: 0x0000000114289955 libdyld.dylib`start + 1 (lldb)

iOS 13 introduced the floating digitial keyboard and this breaks my custom inputView that I am using on a UITextField. Is there anyway to detect that the floating digital keyboard is being used so I can properly size / hide some buttons from my custom inputView?I tried using size classes to hide things, however the width is considered regular instead of compact when the floating keyboard is used.

When I log into App iTunes Connect the only button that works is Artists. Clicking on Apps does nothing. I have tried in chrome and safari and with other ITC logins. I don't have any contracts to approve or sign over at https://developer.apple.com. I do see javascript errors on that page not sure if that is what is preventing it from working.