[IOS] VTDec with iOS12 : Decoding glitches
Submitted by Alann
On iOS 12, I have been experiencing weird behaviour on decoding video (tested in playbin).
We can see that the video stutters a lot and nothing weird appears in logs. I tested the latest master version built with Cerbero, and also an older 1.12 version to check if the problem existed before, but still, it happens everytime so it might be something new in iOS12 hardware decoding via VTDec.
Step to reproduce are simple : You can start from iOS tutorial 4 (Just need to update gst_ios_init.x) and set an accessible video url such as "http://mirrors.standaloneinstaller.com/video-sample/jellyfish-25-mbps-hd-hevc.mp4".
Playing the video will show the anomaly.
Thanks for your precious help.