[Webkit-unassigned] [Bug 245270] New: [MSE][GStreamer] artifacts observed when the MPEG-DASH playback switch to 4K resolution on RPi3
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Fri Sep 16 02:56:47 PDT 2022
https://bugs.webkit.org/show_bug.cgi?id=245270
Bug ID: 245270
Summary: [MSE][GStreamer] artifacts observed when the MPEG-DASH
playback switch to 4K resolution on RPi3
Product: WebKit
Version: WebKit Nightly Build
Hardware: Other
OS: Linux
Status: NEW
Severity: Normal
Priority: P2
Component: Media
Assignee: webkit-unassigned at lists.webkit.org
Reporter: pgorszkowski at igalia.com
Created attachment 462389
--> https://bugs.webkit.org/attachment.cgi?id=462389&action=review
The screenshot of the observed articats with 4K content
The problem is observed on RaspberryPi 3 B+ platform when the user tries to play the playback which has 4K resolution (in this case is 3840 × 2160).
Step to reproduce (on RaspberryPi 3B+):
1. Open reference dash js player: https://reference.dashif.org/dash.js/v4.1.0/samples/dash-if-reference-player/index.html
2. select playback: https://dash.akamaized.net/akamai/bbb_30fps/bbb_30fps.mpd (Streams->VOD->[DASH-IF] SegmentTemplate/Number, live profile, 250kbps up to 15Mbps at 4K.)
3. start the playback (click 'Load' button)
4. wait a while when the playback switches to highest representation (4K)
The artifacts on video playback can be seen instead of proper video. The screenshot of that case you can find in attachment.
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