Soemthing like this. 99% of this code just sets it up to do a custom CGAffineTransform, and then save out the result. I’m assuming that you want the cropped video to take up full size/width of the output – so that e.g a Scale Affine is the correct solution (you zoom in on the video, … Read more
Ok, I’ve looked over this problem again and written some code to check out AVQueuePlayer. jollyCocoa’s answer pointed me in the right direction by suggesting to observe the status property on AVPlayerItem. However the documentation doesn’t seem to point out that this property (and it’s AVPlayerItemStatusReadyToPlay value in particular) might be related to buffering. However … Read more
Ok everyone, I have the answer to this straight from Apple. I used one of my developer TSI lifelines to ask the question, and I’ll summarize the response. There is a limit on the number of concurrent video players that AVFoundation will allow. It is due to the limitations of iOS hardware. The limit for … Read more
I used this code once to capture iOS default shutter sound (here is list of sound file names https://github.com/TUNER88/iOSSystemSoundsLibrary): NSString *path = @”/System/Library/Audio/UISounds/photoShutter.caf”; NSString *docs = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject]; NSData *data = [NSData dataWithContentsOfFile:path]; [data writeToFile:[docs stringByAppendingPathComponent:@”photoShutter.caf”] atomically:YES]; Then I used third-party app to extract photoShutter.caf from Documents directory (DiskAid for Mac). Next step … Read more
You mention that you have looked at AVAnimator, did you download the KittyBoom example project and try it out? The specifics of how it works are detailed in this post. One thing to note is that when you build and run on the device, you need to turn Debug mode off otherwise it will not … Read more
The problem is that Player, your AVAudioPlayer, is a local variable. So it goes out of existence immediately – before it can even start playing, let alone finish playing. Solution: make it a property instead, so that it will persist.
The problem is that when compiling with ARC you need to make sure to keep a reference to instances that you want to keep alive as the compiler will automatically fix “unbalanced” alloc by inserting release calls (at least conceptually, read Mikes Ash blog post for more details). You can solve this by assigning the … Read more
I know you don’t want to use the AVAssetImageGenerator but I’ve also researched this extensively and I believe the only solution currently is using the AVAssetImageGenerator. It’s not that difficult as you say to get the right coordinate because you should be able to get the current time of your player. In my App the … Read more
This is what I do. I then use an AVAssetExportSession to create the actual file. but I warn you, the CGAffineTransforms are sometimes applied late, so you’ll see a or two of the original before the video transforms. I have no clue why this happens, a different combination of videos will yield the expected result, … Read more
You’re talking about using the calls for generating what Apple calls thumbnail images from videos at specific times. For an MPMoviePlayerController (what iOS uses to hold a video from a file or other source), there are two commands to do this. The first one generates a single thumbnail (image) from a movie at a specific … Read more