GNOME Bugzilla – Bug 797250
[IOS] VTDec with iOS12 : Decoding glitches
Last modified: 2018-11-03 14:35:25 UTC
Dear Community, 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. Alann.
To simplify the process, the problem can be observed with a simple pipeline runned on iOS 12: pipeline = gst_parse_launch("playbin uri=http://samples.mplayerhq.hu/V-codecs/h264/interlaced_crop.mp4", &error);
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/issues/795.