avassetexportsession

I want to trim a video: -(void)trimVideo:(NSURL*)outputURL { //[[NSFileManager defaultManager] removeItemAtURL:outputURL error:nil]; AVURLAsset *asset = [AVURLAsset URLAssetWithURL:outputURL options:nil]; AVAssetExportSession *exportSession = [[AVAssetExportSession alloc] initWithAsset:asset presetName:AVAssetExportPresetLowQuality]; NSString * outputFilePath = NSHomeDirectory(); outputFilePath = [outputFilePath stringByAppendingPathComponent:@"Library"]; outputFilePath = [outputFilePath stringByAppendingPathComponent:@"temp.mov"]; NSURL * outputFileUrl = [NSURL fileURLWithPath:outputFilePath]

When I am blending two videos with AVAssetExportSession in ios 9 its working perfectly. but when i blend with AVAssetExportSession in iOS 10, it in not working. Please help me if any know the reason, Thank you. actualy code is working for iphone 6s and earlier, but not for working for iPhone 7 for example -(void) blendVideoOverVideo:(NSURL*)mainVideoUrl andBlendVideoUrl:(NSURL*)liveEffectUrl { AVURLAsset *mainVideoUrlAsset =[AVURLAsset URLAssetWithURL:mainVideoUrl options:nil]; // AVPlayerItem* mainVideoPlayerItem =[[AVPlayerItem alloc]initWithAsset:mainVideoUrlAsset]; AVAssetTrack*

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 Video Asset and then merge all the Videos and have to Save the Final Video . As an output, when I will play the Final Video then Video sound volume should change accordingly. I have already merged all the selected Video Assets into one with different different CIFilter effects but my problem is when I am trying to set Volume for each Video Clips then it's not working. I am getting the default Volume

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 able to implement any workaround to add watermark and text on video. With this code some times the video will be exported successfully but most of time it won't be exported. How should I use AVVideoCompositionCoreAnimationTool so that it works as it did on iOS9. let videoComposition: AVMutableVideoComposition = AVMutableVideoComposition() videoComposition.frameDuration = CMTimeMake(1, 60)

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 to reproduce the error. We noticed the asset tracks seem to get lost during export. Before exporting, there are two tracks (one for audio, one for video) as expected. But checking the number of tracks for the same file URL in exportDidFinish shows 0 tracks. So something seems wrong with the export process. Update: Commenting out exporter.videoComposition = mutableComposition fixes the error, but of