The 8 minute limitation is for the time the user’s choice is remembered for the authorization prompt, is it not? Is there a limit for the actual recording as well?
Saagar Jha > On Jan 15, 2017, at 9:22 AM, davel...@mac.com wrote: > > I have an iOS presentation app > (https://itunes.apple.com/app/redraw/id1114820588?mt=8) that I currently make > videos from by AirPlaying it to my Mac and using Screenflow on the Mac to > show the iPad screen and record my audio from a microphone (and then edit). > I'd like to build this functionality into my app directly. I see ReplayKit > which would probably work (haven't checked if it can record the external > screen my app makes) but the 8 minute limitation is probably a deal breaker. > If that were 20 minutes, I would probably use it. > > Basically what I want to do is to have the app record some audio (while the > user is interacting with the app) and make a video that includes this audio > and a series of sporadically updated images. For example, I have an image > that is being shown on the screen of the app and want that image to be in the > video until the user presses a button to change the image and then I want > that image to be the image that is shown in the video (as the audio > continues). Most of the time the same image might be shown for 10 or so > seconds at a time, but occasionally the image might be updated at 30 fps. > > So basically I want to make a video from this audio and periodically I will > update the image that should be displayed and that frame should continue to > be shown in the movie until I tell it to use a new image for the subsequent > frames. > > It looks like AVFoundation and specifically AVAssetWriter may be what I need? > Is that the correct approach? > > I found this that sort of looks like what I want: > > http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie > > Although in my case I don't have all the images saved ahead of time (and > don't want to save the images in memory while recording the audio because I > would likely run out of memory). I just want to write the move to the flash > storage as the audio is recorded. > > My app is written in Swift although I wrote Objective-C code for 6 or so > years so pointers to example code written in Objective-C are fine also. > > Thanks, > Dave Reed > > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/cocoa-dev/saagar%40saagarjha.com > > This email sent to saa...@saagarjha.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
