After an evaluation, GNOME has moved from Bugzilla to GitLab. Learn more about GitLab.
No new issues can be reported in GNOME Bugzilla anymore.
To report an issue in a GNOME project, go to GNOME GitLab.
Do not go to GNOME Gitlab for: Bluefish, Doxygen, GnuCash, GStreamer, java-gnome, LDTP, NetworkManager, Tomboy.
Bug 797250 - [IOS] VTDec with iOS12 : Decoding glitches
[IOS] VTDec with iOS12 : Decoding glitches
Status: RESOLVED OBSOLETE
Product: GStreamer
Classification: Platform
Component: gst-plugins-bad
1.x
Other other
: Normal major
: git master
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2018-10-04 14:09 UTC by Alann
Modified: 2018-11-03 14:35 UTC
See Also:
GNOME target: ---
GNOME version: ---



Description Alann 2018-10-04 14:09:21 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.
Comment 1 Alann 2018-10-05 09:53:44 UTC
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);
Comment 2 GStreamer system administrator 2018-11-03 14:35:25 UTC
-- 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.