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A demo about merging videos & images in iOS

License: MIT License

Swift 99.26% Ruby 0.74%

ios swift ios-swift ios-demo swift4 merging videos

mergevideos's Introduction

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 !!!

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mergevideos's Issues

Not working when you set custom duration

Video merge is not working if you set let duration = 0.5.toCMTime(). It says Error:Operation Stopped. (although it's working if you're not exporting it to URL but use this video as PlayerItem).
Another problem is that it's also not working if you want to merge for example 20-30 videos or more.(not working in all scenarios).

Any thoughts why?

How to make videos fill desired size?

I really like this framework but I need help with extra functionality. I want videos to fill the desired size (for example: 1080x1920). Because now landscape videos are not being filled. It would be great to get tips how I could achieve that. (basically something similar like videoGravity - aspectFill).

merge issue

i am merging image with video but i's not working.

Black BG Clip issue

Hi,
Whenever I try to merge a video with an image, There is a blank clip added at the start of the video. How I can get rid of it?

Video Output Size Not Adjusted

Great job on incorporating video orientation! However, the output is not correctly adjusted when merging multiple videos. So when one video is portrait the size is adjusted, but the output is never adjusted again when the video is landscape. The result is correct orientation but the width is cut-off for landscape videos.

My change was simply to set outputSize equal to videoSize when the video is not portrait.

 if assetInfo.isPortrait == true {
                videoSize.width = videoTrack.naturalSize.height
                videoSize.height = videoTrack.naturalSize.width
            }
            else
            {
                outputSize = videoSize
            }

"AVFoundationErrorDomain" - code: 18446744073709539778

when I try to merge video on ios 13.0
show this on error log not process the operation
"AVFoundationErrorDomain" - code: 18446744073709539778

but when I uninstall and run it, merge process works fine

I merge 100 images success! but Video first screen is all black! no thumbImage.

please help me !

merge portrait and landscape video(URGENT)

when i am merge portrait and landscape video then output video is only portrait mode.

Black frame

It seems you haven't updated the source code with this gap. the problem remains. file date 19/10/21
Fix issue: merging videos shows black screen sometimes. (update videoCompositionInstructionForTrack function)

Landscape issue

When the video is saved in the device or we play in AVPlayerController after selecting landscape videos for merging. When I rotate the device to landscape its landscape aspect ratio is breaking.

How can I get thumbnail of video? There is no any thumbnail after merging the video.

How do I change from portrait mode to landscape mode?

The extracted image is output in portrait mode.
How do I change this to landscape mode?

Audio Issue

I found that the audio would cut-off in the second merged video. I believe the issue is with the implementation of the audioCompositionTrack. For that the startTime should be kCMTimeZero in all cases. Here is the correction I made which fixed the issue:

// Add audio track to audio composition at specific time

            if let audioTrack = audioTrack {
                try audioCompositionTrack?.insertTimeRange(CMTimeRangeMake(startTime, duration),
                                                           of: audioTrack,
                                                           at: insertTime)
            }

Landscape video merging issue

Hi,
While merging one or more landscape videos shows a black screen . its audio get merged but the video is just a black screen

Video background noise

Hi,

I am merging 2 3 videos, final merged video contains some background noise in it,
Please update, is there a way to remove noise?
I was thinking that there might be some issue with UIIMagePickerController.
But it's the final video that contains noise.

Cannot Open error while merging two videos

I am merging two videos with this code:

let urlVideo1 = Bundle.main.url(forResource: "gif2vid", withExtension: "mp4")
let urlVideo2 = Bundle.main.url(forResource: "mergedVideo", withExtension: "mp4")
let videoAsset1 = AVAsset(url: urlVideo1!)
let videoAsset2 = AVAsset(url: urlVideo2!)
KVVideoManager.shared.merge(arrayVideos: [videoAsset1, videoAsset2], completion: { (final_URL, error) in
        print("final_URL:=",final_URL as Any)
        print("Error:=",error?.localizedDescription ?? "")
})

It prints final_URL but video is not available there. It prints error: Cannot Open

merge 15 to 20 images

i have used MergeVideos library making 15 to 20 images from video but issue come

Domain = AVFoundationErrorDomain Code=-11839 "Cannot Decode" UserInfo={NSLocalizedDescription=Cannot Decode, NSUnderlyingError=0x10e16d6c0 {Error Domain=NSOSStatusErrorDomain Code=-12913 "(null)"}, NSLocalizedRecoverySuggestion=Stop any other actions that decode media and try again., NSLocalizedFailureReason=The decoder required for this media is busy.}