Good day,

I'm currently trying to use TimeLapseBuilder in my project, but it seems like it's not running.
I have the following function that runs when the user taps a button:

private func exportSpinsToVideo() {
    let timelapseBuilder = TimeLapseBuilder(photoURLs: spinURLs)
    timelapseBuilder.build({ progress in
      print(progress)
    }, success: { url in
      print(url)
    }, failure: { error in
      print(error)
    })
  }

When I tap the button I'm not getting any feedback from progress, success or failure.
The spinURLs String Array contains locations of images saved in the DocumentsDirectory.

Any idea as to what could be going wrong?

Hi,

thanks for the nice piece of code. Just want to implement a parameter to set the duration between picture frame switch.

So I want to see a picture for 3 seconds but the framerate of the video file should be still 30 fps.

Is there a little tweak to make this possible?

Many thanks!

Is there a simple way to include Audio from Mic or other source.. into the video file ?

This library works really well for JPG images but when trying to generate video with PNG images have some transparent pixels. The area with transparent pixels have artifacts in the final export.

I tried using HEVC encoding with Alpha support but did not work.

Has anyone tried this with PNG images with transparency?

I like the small size of this code especially since I don't have a lot of experience using the AVAssetWriter. I was just wondering if you would know where I would start modifying the class so that it would loop over the array of images until it reached a certain time/maxFrames ?

I'm looking to modify this to convert an array of photos displayed in the same way as a gif into a 15 second video for instagram sharing.

Any help would be appreciated thanks !

Hey
I am creating the video from the number of image's URL. I am able to do that but I am facing a problem that when I have created the video that video content start from the top left and remaining screen shows black .
Thanks
Vijendra

Since my videos can have very low frame rates (down to 1fps), I noticed that the first frame of the finished video was lasting for 2 seconds when I changed the fps to 1. This is because the 2nd frame gets added at 2 seconds, not at 1 second. Only the lastFrameTime is needed:

let lastFrameTime = CMTimeMake(value: frameCount, timescale: fps)

if !self.appendPixelBufferForImageAtURL(nextPhotoURL, pixelBufferAdaptor: pixelBufferAdaptor, presentationTime: lastFrameTime) {

This correctly produces a video where the 1st and every frame truly lasts 1 second.

The frameDuration variable is also not needed with this change.

Thanks for this code, BTW. I was going to try to tackle it, but good grief! Why they didn't allow image types to be used with AVURLAsset is beyond common sense.

when i play video video running too fast
please help me to solve this