I am trying to change speed of the video that does not contain audio stream via below command String[]{"ffmpeg", "-y", "-i", orginalFile, "-threads", "5", "-preset", "ultrafast", "-strict", "exper...

Does anybody know how to stitch two (or more) videos together using ffmpeg (or another cli)? This is assuming that all the videos are in the same format and the video format being used allows for l...

I'm writing application which must put image above the video and save video. In general application opens video file, after that user select image with transparent background and put that im...

I want to edit video from my iOS application. I want some text on the source video for language subtitles. I then want to save video with that text overlaid. text not just only display purpose. but...

I want to add a text or string ON the video being played by MPMoviePlayerViewController in a way that it becomes part of the video being played. So that, when I post that video on Facebook or Twitt...

I know you could merge multiple clips and create a single video by appending one after other using AVFoundation classes- AVURLAsset, AVMutableComposition, AVMutableCompositionTrack etc. There are...

I have 2 videos (same resolution, same encoding) files that I want to concat and I want to insert some text for 3 seconds between them, as a splitter. I'm doing this with ffmpeg on Windows. Option...

I have combined the 2 code chunks found here into one solid chunk (and verified the process with an Apple Developer Xcode tutorial file). When I run it, however, I get an error. It says: Error D...

I am trying to change the video frame size to square i.e 100 x 100. Here is the code: - (void) changeSize :(NSURL *) url { //Create audio/video Settings NSDictionary *videoSettings = [NSDictionar...