MergeVideos

This is a sample implementation for merging multiple videos and/or images using AVFoundation, fixed orientation issues.

Features

• Merge videos.
• Merge videos with transition animation.
• Add background music to a video.
• Merge videos and images with transition animation.
• Add text with fade in / fade out animation into a video.

Requirements

• iOS 13.0+
• Xcode 13.0+
• Swift 5+

Updates

20/10/2021

• Update source code to run on Xccode 13 and Swift 5.
• Refactor code.
• Fix issue: merging videos shows black screen sometimes. (update videoCompositionInstructionForTrack function)

Usage

Drag the files in VideoManager folder into your project.

Please refer to the sample project MergeVideos for more details. (Don't forget to run pod install before opening the project).

• Merge videos

let videoAsset1 = AVAsset(url: urlVideo1)
let videoAsset2 = AVAsset(url: urlVideo2)
        
KVVideoManager.shared.merge(arrayVideos: [videoAsset1, videoAsset2]) { (outputURL, error) in
      if let error = error {
           print("Error:\(error.localizedDescription)")
      }
      else {
           if let url = outputURL {
               print("Output video file:\(url)")
           }
     }
}

• Merge videos with transition animation

let videoAsset1 = AVAsset(url: urlVideo1)
let videoAsset2 = AVAsset(url: urlVideo2)
        
KVVideoManager.shared.mergeWithAnimation(arrayVideos: [videoAsset1, videoAsset2]) { (outputURL, error) in
      if let error = error {
           print("Error:\(error.localizedDescription)")
      }
      else {
           if let url = outputURL {
               print("Output video file:\(url)")
           }
     }
}

• Add background music to a video

let videoAsset = AVAsset(url: urlVideo)
let musicAsset = AVAsset(url: urlMusic)
        
KVVideoManager.shared.merge(video:videoAsset, withBackgroundMusic:musicAsset) { (outputURL, error) in
      if let error = error {
           print("Error:\(error.localizedDescription)")
      }
      else {
           if let url = outputURL {
               print("Output video file:\(url)")
           }
     }
}

• Merge videos and images and text with transition animation

let videoData = VideoData()
videoData.isVideo = true
videoData.asset = AVAsset(url: urlVideo)

let imageData = VideoData()
imageData.isVideo = false
imageData.image = UIImage(named: "sample-image")
        
let textData = TextData(text: "HELLO WORLD",
                        fontSize: 50,
                        textColor: UIColor.green,
                        showTime: 3,
                        endTime: 5,
                        textFrame: CGRect(x: 0, y: 0, width: 400, height: 300))
        
KVVideoManager.shared.makeVideoFrom(data: [videoData, imageData], textData: [textData]) { (outputURL, error) in
     if let error = error {
           print("Error:\(error.localizedDescription)")
      }
      else {
           if let url = outputURL {
               print("Output video file:\(url)")
           }
     }      
}

Note

This is a sample implementation to demonstrate the functions in AVFoundation with just some simple animations, but you got the idea !

You would be able to add more complicated transition animation, text showing animation by using Core Animation !!!