avfoundation

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Basic AVAssetReader problems reading video samples

I\'m looking to read video samples via AVAssetReader and I\'m running into all kinds of road blocks. Can some one post 开发者_StackOverflowcode that sets up an AVAsset from a video named \'Movie.m4v\'[详细]

2023-03-14 12:44 分类：问答
loadValuesAsynchronouslyForKeys and multiple values loading

I would like to asynchronously load the duration, time (timestamp the video was created) and locale of an Asset.[详细]

2023-03-14 10:50 分类：问答
AVAssetExportSession SLOW

I am using AVAssetExportSession to export audio files. It is working, though in a speed that is practical for use. I am setting up my exporter, getting my AVAsset, and starting the export. Here is the[详细]

2023-03-14 08:42 分类：问答
Handle streaming events with AVPlayer

I\'m building an app which plays an audio stream (from a webradio). I\'m using AVPlayer for it. I\'d like to know how you would handle AVPlayer\'s "buffering" when the connection is slow o开[详细]

2023-03-13 19:03 分类：问答
AVCaptureMovieFileOutput causing wrong orientation when saving photo to Camera Roll

I have an odd problem with captureStillImageAsynchronouslyFromConnection. If I save the image using jpegStillImageNSDataRepresentation while the video is mirrored, the image in the camera roll is rota[详细]

2023-03-13 12:40 分类：问答
exporting CALayer with AVMutableVideoComposition

I am trying to export an image over video, but when the export fininshes I get a video of black screen with the image.[详细]

2023-03-13 05:25 分类：问答
playing sound with reference of images

As mentioned in the question I have added few images and a sound file to the r开发者_JS百科esource folder. Image navigation is working fine with next and previous button. Now I need to play sound that[详细]

2023-03-12 21:14 分类：问答
AVCaptureOutput takes dark picture even with flash on

I have come up with an implementation of AVFoundation and ImageIO to take care of the photo taking in my application. I have an issue with it, however. The images I take are always dark, even if the f[详细]

2023-03-12 07:56 分类：问答
Creating a movie file of a animation with avassetwriter

I have a animation created using normal core animation methods. If there any way to create a movie file using avassetwriter? Ive seen other que开发者_Python百科stions which show the how to use avasset[详细]

2023-03-12 06:55 分类：问答
AVMutableAudioMix simple question

just want to understand , what exactly I can do with this AVMutableAudioMix class开发者_StackOverflow社区, once I will insert PlayerItems (Assets) in to the AudioMix, can I play them one at the time o[详细]

2023-03-12 03:55 分类：问答