Well I already mention app name, but still they rejected. I could go longer by saying <Appname> requires microphone to record audio for video tracks. Without this permission, video clips would be silent. But this becomes unnecessarily long and confusing. I checked tons of other video camera apps and they write stuff such as "this allows app to record audio". The thing is in a video camera app, isn't it obvious that microphone permission is needed to record audio?

Thank you for the response. Well I can always implement and compare, but implementing the most optimal strategy and finding the most optimal set of instructions may be hard in a multilayer setup with so many visual element types. If we just keep black video(1 frame of size 480x320 stretched to fit timerange) in the below layers of passthrough tracks, will the decoder have any extra hard time decoding the black videos? In other words, passthrough track + black video vs passthrough track, is it any different?

How do we know the user denied access to Local Networks access?

Are we supposed to copy these files locally? Because it doesn't loads in AVPlayer.

Were you able to find a solution?

Were you able to find a solution to this? I am stuck with the same issue, and more than that when it works it is awfully slow to load videos.

Here is a question on SO with a GIF demonstrating the problem: PHPickerViewController Buggy UI in MultiSelect Mode - https://stackoverflow.com/questions/64232158/phpickerviewcontroller-buggy-ui-flow-in-multi-select-mode

Am I the only one facing these issues, or there is a workaround perhaps? Apple Engineers, With these bugs it is impossible to use PHPickerViewController for multiselection.

Noticed again on iOS 14.2 beta 2 on iPhone 11 Pro. Apps fail to open, deleting or offloading apps fails, space remains stuck at 63.6 GB/64 GB.

Even I am getting this. No idea what I am doing wrong.

I browsed through most of the APIs and it's not clear if AVCaptureVideoDataOutput will support delivery of 10 bit sample buffers BT2020 color space. It's not therefore clear if third party apps can record videos in HDR format with whatever is available so far.

@ricob Thanks for the response. To tell my requirements, I was evaluating whether it is possible to use UICollectionView to implement a video editing timeline like in Final Cut Pro (https://help.apple.com/assets/5D6EB1CB094622CB34375CC7/5D6EB1D4094622CB34375CDC/en_US/ada7bd21a661acc9b512ccec5b9730d0.png ). I am getting convinced to use UIScrollView rather than UICollectionView. If you think I need to file a TSI, I would do so. Otherwise if you can guide me on the right path, that would be nice too.

It's not supported yet, however there has been an update of Clips app by Apple yesterday where they support recording HDR videos. Not sure how.

The video composition processor interrogates video composition instructions to see if each containsTweening to figure out whether this is necessary. If not, and if the frame duration of the composition is lower (= higher frame rate) than the source tracks, it may skip rendering, which you could think of as dropping frames — frames that would be duplicates anyhow. So in other words, if I understand you correctly, AVFoundation guarantees constant frame rate conversion for variable frame rate videos -- both in playback and rendering. Correct?

@bford and other AVFoundation Engineers, can you please respond to this? How is Clips app by Apple recording in 10 bit Dolby Vision HDR format? I see 4 new types of AVCaptureDeviceFormats with codecType 'x420'. Does x420 stands for extended 10 bit buffers? --Format <AVCaptureDeviceFormat: 0x283b9c520 'vide'/'x420' 3840x2160, { 1- 30 fps}, HRSI:4224x2376, fov:70.291, supports vis, max zoom:129.12 (upscales @1.00), AF System:2, ISO:33.0-3168.0, SS:0.000014-1.000000, supports wide color, supports multicam>, AVMediaType(_rawValue: vide), <CMVideoFormatDescription 0x28375a190 [0x1f5b24660]> { mediaType:'vide'  mediaSubType:'x420'  mediaSpecific: { codecType: 'x420' dimensions: 3840 x 2160  }  extensions: {(null)} }