avasset

I create an animation with layers and I want to export a video with that animations. So I use AVAssetExportSession, but it take a long time to export. Maybe I can use another thing? I really need help! let videoURL = NSURL.init(fileURLWithPath: "/Users/Downloads/img_2040.mp4") let audioURL = NSURL.init(fileURLWithPath: "/Users/Downloads/music_10sm.m4a") let videoAsset = AVURLAsset.init(url: videoURL as URL) let audioAsset = AVURLAsset.init(url: audioURL as URL) let mixComposition = AVMutableComposition.init() let compositionVideoTrack = mixComposition.addMutableTrack(withMediaType:

Every file I write with AVAssetWriter has a black background, if the images I include do not fill the entire render area. Is there any way to write with transparency? Here's the method I use to get the pixel buffer: - (CVPixelBufferRef)pixelBufferFromCGImage:(CGImageRef)image { CGSize size = self.renderSize; NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithBool:YES], kCVPixelBufferCGImageCompatibilityKey, [NSNumber numberWithBool:YES], kCVPixelBufferCGBitmapContextCompatibilityKey, nil]; CVPixelBufferRef pxbuffer = NULL; CVPixelBufferPoolCreatePixelBuffer

I need to use the AVAsset object, in order to play it using AVPlayer and AVPlayerLayer. I started using the Photos framework since AssetsLibrary is deprecated. Now I got to the point where I have an array of PHAsset objects and I need to convert them to AVAsset. I tried enumerating through the PHFetchResult and allocation a new AVAsset using the PHAsset's localized description, but it does not seem to show any video when I play it. PHAssetCollection *assetColl = [self scaryVideosAlbum]; PHFetchResult *getVideos = [PHAsset fetchAssetsInAssetCollection:assetColl options:nil]; [getVideos

Is there any fast, lightweight-as-possible way to apply a CIFilter to a video? Before it's mentioned, I have looked at GPUImage - it looks like very powerful magic code, but it's really overkill for what I'm trying to do. Essentially, I would like to Take a video file, say stored at /tmp/myVideoFile.mp4 Apply a CIFilter to this video file Save the video file to a different (or the same) location, say /tmp/anotherVideoFile.mp4 I've been able to apply a CIFilter to a video that's playing extremely easily and quickly using AVPlayerItemVideoOutput let player = AVPlayer(playerItem: AVPlayerItem

I am merging multiply videos (implantation of pause button) and everything working fine exept when merging video from back camera with video from front camera then one of the videos comes turned upside down in the new video(merged video). My code: let mixComposition = AVMutableComposition() let videoTrack = mixComposition.addMutableTrackWithMediaType(AVMediaTypeVideo, preferredTrackID: CMPersistentTrackID()) let trackAudio = mixComposition.addMutableTrackWithMediaType(AVMediaTypeAudio, preferredTrackID: CMPersistentTrackID()) var insertTime = kCMTimeZero for var i = 0; i < currentAssets.count;

I am working with an app in which user picks video from Photos and uploads it to server. As my server is .Net server , the video gets rotated. I know the reason of problem is probably same as was in case of image (you may refer my earlier answer https://stackoverflow.com/a/10601175/1030951 ) , So i googled and got a code to fix video orientation , I got a code from RayWenderlich.com and modified in following way. Now my output video works fine but the video is mute. it plays but doesn't play audio. Kindly help me if I am missing something. I pass Info dictionary of -(void)imagePickerController