Bug 216716

Summary: [GStreamer] fast/mediastream/mediastreamtrack-video-clone.html is flaky since GStreamer 1.18 update
Product: WebKit Reporter: Lauro Moura <lmoura>
Component: MediaAssignee: Nobody <webkit-unassigned>
Status: RESOLVED FIXED    
Severity: Normal CC: bugs-noreply, pnormand
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   

Description Lauro Moura 2020-09-18 14:43:28 PDT 
fast/mediastream/mediastreamtrack-video-clone.html

Sample diff GTK:

--- /home/buildbot/worker/gtk-linux-64-release-tests/build/layout-test-results/fast/mediastream/mediastreamtrack-video-clone-expected.txt
+++ /home/buildbot/worker/gtk-linux-64-release-tests/build/layout-test-results/fast/mediastream/mediastreamtrack-video-clone-actual.txt
@@ -5,9 +5,9 @@
 PASS Setup for width test 
 PASS Setup for height test 
 PASS Setup for width+height test 
-PASS Stopping a track should not stop its clone 
-PASS Stopping a cloned track should not stop the original track 
-PASS Collecting a cloned track should not stop the original track 
+FAIL Stopping a track should not stop its clone assert_equals: expected 100 but got 0
+FAIL Stopping a cloned track should not stop the original track assert_equals: expected 100 but got 0
+FAIL Collecting a cloned track should not stop the original track assert_equals: expected 100 but got 0
 PASS Check cloned track settings after applying width constraints 
 PASS Check cloned track settings after applying width constraint to original track 
 PASS Check cloned track settings after applying height constraints 


These three checks are flaky failing. Wayland bots (GTK and WPE) from time to time happens to pass all three. GTK Xvfb is consistently failing.

First failure: r267136-r267140 (Includes GStreamer 1.18 update and mesa patch in the SDK)
Comment 1 Lauro Moura 2020-10-29 12:40:12 PDT 
Similar failure in the following test since the same range:

fast/mediastream/getUserMedia-video-rescaling.html

Diff:

--- /home/buildbot/worker/gtk-linux-64-release-tests/build/layout-test-results/fast/mediastream/getUserMedia-video-rescaling-expected.txt
+++ /home/buildbot/worker/gtk-linux-64-release-tests/build/layout-test-results/fast/mediastream/getUserMedia-video-rescaling-actual.txt
@@ -1,6 +1,6 @@
 
 
-PASS wdith 100 height 100 video
+FAIL wdith 100 height 100 video assert_equals: width expected 100 but got 0
 PASS width 100 video
 PASS height 100 video
Comment 2 Philippe Normand 2021-06-17 05:56:35 PDT 
The results dashboard suggests this was fixed by r273309. I'll unflag these two.
Comment 3 Philippe Normand 2021-06-17 06:06:38 PDT 
r278984