I'm using AVAssetExportSession to export videos in an iOS app. To render the videos in their correct orientation, I'm using AVAssetTrack's preferredTransform. For some source videos, this property ...

I've got an app that exports an AVMutableComposition into a .mov file, and I'd like for the user to see the status of the export with a progress bar the same way that you would if you sent a text m...

I have video having duration 4:00. Now I want to add text in video file as per the frames of video. Say for example from 00:30 to 1:50 duration I want to add text "Welcome". Now from 3:00 to 4:00 d...

Objective : I have a Video over which I have a UIView which contains animated GIFs(not locally stored, but using giphy api), Texts, or hand drawings. I want to export this along with the image in a...

This code used to work on iOS9 to add a watermark and text to a video but since iOS10 it's not working anymore. There is a iOS 10 bug that has been filed but no answer from Apple. I have not been a...

I start saying that I spent a lot of time searching through documentation, posts here and somewhere else, but I can't figure out the solution for this problem. I'm using AVAssetExportSession for e...

I want to concatenate two audio files into one. I had done following code. Please check below. - (BOOL)combineFiles{ AVMutableComposition *composition = [[AVMutableComposition alloc] init]; AVM...

I am working on a task in which I have to trim the recorded video from particular start point to particular end point as entered or selected by user. How am I supposed to do that. As I used UIVideo...

So, at the moment I am using this to compress video: func compressVideo(inputURL: NSURL, outputURL: NSURL, handler:(session: AVAssetExportSession)-> Void) { let urlAsset = AVURLAsset(URL: inp...

I need to be able to merge videos taken with the time lapse function in the Camera app on iOS and export as a single video. However, even if I try to export a single, unchanged time lapse video t...

We add subtitles to a video recorded by the user, but the export by our AVAssetExportSession object fails non-deterministically: sometimes it works, and sometimes it doesn't. It's unclear even how ...

Does someone know how to use the AVAssetWriterInput init with more than 2 channels? I'm trying to init an audioInput, to add it after on AVAssetWriter this way: let audioInput = AVAssetWriterInp...

I am now trying to export an mp3 file that has been player using AVPlayer (using an url) so it doesn't have to be downloaded twice. This is my sample code: I've tried every outputFileType... ...

I am trying to export an AVMutableComposition using AVAssetExportSession. AVAssetExportSession *exporter = [[AVAssetExportSession alloc] initWithAsset:mutableComposition presetName:AVAssetExportP...

I have an array of video recordings stored as AVURLAsset and I want to merge the videos into 1 clip so that they play back to back with no time in-between videos. Below is what I'm hoping to do, bu...

The code below generates this error (appending to exporters): fatal error: UnsafeMutablePointer.deinitialize with negative count var exporters = [AVAssetExportSession]() let exporter = AVAs...

I'm having a problem with AVAssetExportSession where the progress stops increasing but the status still says that it is exporting. This is actually a pretty rare occurrence, it works flawlessly abo...

I have a problem tracing the underlying issue behind my asset export session failure. The issue is for one video only, and I believe the problem is in its audio track, since I successfully exported...

Requirement : It sounds like litte different but this is what I want to achieve. I want to make movie (.mov) file in reverse. Just like how we rewind the movie file. I also want maintain same fram...

I am working on Video based Application in Swift. As per the requirement I have to select multiple Videos from Device Gallery, setting up different different CIFilter effects and Volume for each Vi...

I am developing a Video based Application in Swift. Where I am exporting a Video clip with Watermark logo and Fade In Out effect. Here is my code: func watermark(video videoAsset:AVAsset, videoMod...

I'm playing with the AVEditDemo project, from Apple's WWDC 2010 sample pack, and I'm trying to change the frame rate of the exported video. The video is exported using an AVMutableComposition on wh...

When playing a video exported from a AVAssetExportSession, you hear audio long before seeing video. Audio plays right away, but video only appears after the recording loops several times (i.e., sta...

I am using AudioKit in my project. By using the process suggested in the mixing nodes playground example, I am playing the multiple audios. My requirement is to upload the mixed audio to the server...

I have multiple audios files(more than 3). By using the AVAudioEngine and AVAudioMixerNode I am playing the all audio tracks into a single track. I want to save the mixed audio in the document dire...