avfoundation

Today I'm very exited about the speech synthesis function is available in iOS7. I want to select the male voice(default in OSX, called alex). I don't know what's the BCP-47 code for him, and BTW how to get the full list of all voice code Here's how to get the BCP-47 codes of the available voices: for (AVSpeechSynthesisVoice *voice in [AVSpeechSynthesisVoice speechVoices]) { NSLog(@"%@", voice.language); } Alex's locale is "English - United States" (en-US), as you can see in the Dictation & Speech control panel on OS X. (Click "Customize..." in the "System Voice" drop down.) iOS 8 added Hebrew,

Can listening to AVSystemController_SystemVolumeDidChangeNotification NSNotification be considered (during the App Store review process) as using private API? In my application I need to display and update the current volume level. Volume indicator should be updated after pressing hardware volume buttons and after volume change in MPVolumeView slider. I've searched solution how to get notification or event of hardware volume button press and had found a number of solutions. For example, iPhone Detect Volume Keys press. and How to get audio volume level, and volume changed notifications on iOS?

I'm trying to access AVAudioPCMBuffer.floatChannelData using Swift but it is of type UnsafePointer<UnsafePointer<CFloat>> (in Objective-C, @property(nonatomic, readonly) float *const *floatChannelData ) and any attempt I make to access it results in execution failed. Sample code to set-up a quick AVAudioPCMBuffer in a Swift Playground is included in a previous question: Getting AVAudioPCMBuffer working (AVAudioFile.mm error code -50) trilorez Does this work? let channels = UnsafeBufferPointer(start: myAudioBuffer.floatChannelData, count: Int(myAudioBuffer.format.channelCount)) let floats =

Sometimes AVPlayer fails with AVPlayerItemStatusFailed and after that failure occurred, AVPlayer continues to failed with AVPlayerItemStatusFailed . I tried to clear the AVPlayer instance and create new one, but I cannot achieve AVPlayerItemStatusFailed failure to solve. Also removingFromSuperview UIView with AVPlayer instance and initializing new item with AVPlayer does not solve the problem. So I figured that out AVPlayer couldn't been cleared completely. Is there anybody suggest anything to try for clearing the AVPlayer completely and make it works after failure? Error log: Error Domain

In my application I have fix composition render size of 1280 x 720. So if will import any portrait video then I have to show blur background with fill and aspect frame of video in centre. Same like this: https://www.youtube.com/watch?v=yCOrqUA0ws4 I achieved to play both videos using AVMtableComposition , but I don't know how to blur a particular background track. I did following in my code: self.composition = [AVMutableComposition composition]; AVAsset *firstAsset = [AVAsset assetWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"ScreenFlow_Blend" ofType:@"mp4"]]]; [self

My goal is to compose a set of clips recorded from the camera and export them at a certain preferred size. Of course, the video orientation needs to be rotated before exporting. I'm doing this by composing an AVMutableComposition from an array of video clips, stored in avAssets below. I am able to compose them fine, and export it. However, the rotation transform I am setting on the AVMutableVideoComposition is not being honored. If I use the same transform and set it on the preferredTransform property of the video track, then it works. In both cases, the video renderSize is not being honored.