I'm developing a video editing app for iOS on my spare time. I just resumed work on it after several weeks of attending other rpojects, and -even though I haven't made any significant changes to t...

I am getting file url of normal video, but slow motion video asset type is AVComposition. I am try with AVAssetExportSession But it consuming large time. PHVideoRequestOptions *options=[[PHVideoRe...

I'm working with AVFoundation using audio only - i.e. no video - and trying to join several AVCompositions together, one after the other, to end up with one single AVComposition. Example case: jus...

I'm working on a project that requires sequencing a large number (problem is visible at n = 30 or fewer) of short (1-5 second) AVAssets. All of the reference material and sample projects I can find...

I have a AVMutableComposition that I've associated with an AVPlayer. It seems if I add tracks to this composition the AVPlayer doesn't play the added tracks unless I set the composition on the play...

I'm trying to render an image into a video captured with the front camera using AVMutableComposition. The size of the resulting video (including the image) is perfectly fine. However, the initial...

I'm attempting to apply a CIFilter to an AVAsset, and then save it with the filter applied. The way that I am doing this is by using an AVAssetExportSession with videoComposition set to an AVMutabl...

I have an AVMutableComposition with a video track and I would like to add a still image into the video track, to be displayed for some given time. The still image is simply a PNG. I can load the im...

I'm trying to use AVMutableComposition to play a sequence of sound files at precise times. When the view loads, I create the composition with the intent of playing 4 sounds evenly spaced over 1 se...

I have a video composition which I'd like to play over Airplay (without mirroring). The app works as expected when using normal Airplay mirroring, but I'd like to get the speed, reliability, and re...

I'm trying to place some text of a part of a video that I'm creating. I realize that I can use a layer with text over an entire length of the video using CALayers, but how do I do it over only par...

I am trying to join 2 preexisting mpeg4 video's together on an ipad2 with the following code. -(void)mergeTestVideos { //setup asset NSString *firstassetpath = [NSString stringWithFormat:@"%@mp...

We've got an app we're working on that needs to provide playback of video files via AVPlayer. The files need to be stored on the user's device, but also must playback while downloading. At the mom...

I'm trying to create a song from multiple instrument samples using AVComposition. When I play two sound assets at kCMTimeZero in an AVMutableComposition, I would expect them to play at the same ti...

AVFoundation allows you to "compose" 2 assets (2 videos) as 2 "tracks", just like in Final Cut Pro, for example. The theory says I can have 2 videos on top of each other, with alpha, and see both...

I am trying to insert an AVURLAsset of a AVPlayerItem that states AVPlayerItemStatusReadyToPlay into an AVMutableComposition like this: composition_ = [[AVMutableComposition alloc] init]; insertio...

Update - I've added a 50 reputation bounty for answering this question! I have an application that needs to put together some videos and photos to create a movie out of them. I am using AVMutableC...