Bug 311317 – REGRESSION(310087@main): [GStreamer] fast/mediastream/MediaStream-video-element-track-stop.html is a flaky timeout / failure

• Status: RESOLVED
• Resolution: FIXED
• Component: Media

[Claudio Saavedra]

This test was failing consistently but it started flakily timing out around 310089@main. Not necessarily because of that change, but around that time:

https://results.webkit.org/?suite=layout-tests&test=fast%2Fmediastream%2FMediaStream-video-element-track-stop.html&platform=GTK&platform=WPE

stderr when timing out:

0:00:10.345510431 1435672 0x555bed682610 ERROR                  pulse pulsedeviceprovider.c:571:gst_pulse_device_provider_start:<pulsedeviceprovider0> Failed to connect: Connection refused
0:00:10.345931852 1435672 0x555bed682610 ERROR                  pulse pulsedeviceprovider.c:466:gst_pulse_device_provider_probe:<pulsedeviceprovider0> Failed to connect: Invalid argument
0:00:10.385767495 1435672 0x555bed682610 ERROR             video-info video-info.c:595:gst_video_info_from_caps: no format given

diff when timing out:

--- /sdk/webkit/layout-test-results/fast/mediastream/MediaStream-video-element-track-stop-expected.txt
+++ /sdk/webkit/layout-test-results/fast/mediastream/MediaStream-video-element-track-stop-actual.txt
@@ -1,3 +1,5 @@
+FAIL: Timed out waiting for notifyDone to be called
+
 Tests MediaStreamTrack callbacks.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
@@ -47,21 +49,5 @@
 mediaStream.getVideoTracks()[0].stop()
 mediaStream.getAudioTracks()[0].stop()
 
-Event 'ended'
+Event 'canplaythrough'
 
-**** re-check states now that the video stream has ended ****
-PASS video.ended is true
-PASS video.videoWidth is 0
-PASS video.videoHeight is 0
-
-PASS video.videoTracks.length is 1
-PASS video.videoTracks.selectedIndex is -1
-PASS video.videoTracks[0].selected is false
-
-PASS mediaStream.getVideoTracks()[0].enabled is true
-PASS mediaStream.getVideoTracks()[0].readyState is "ended"
-
-PASS successfullyParsed is true
-
-TEST COMPLETE
-


stderr when it fails:

0:00:06.192102790 58223 0x559a628a1820 ERROR                  pulse pulsedeviceprovider.c:571:gst_pulse_device_provider_start:<pulsedeviceprovider0> Failed to connect: Connection refused
0:00:06.192531575 58223 0x559a628a1820 ERROR                  pulse pulsedeviceprovider.c:466:gst_pulse_device_provider_probe:<pulsedeviceprovider0> Failed to connect: Invalid argument
0:00:06.238394812 58223 0x559a628a1820 ERROR             video-info video-info.c:595:gst_video_info_from_caps: no format given

diff when it fails:

--- /sdk/webkit/layout-test-results/fast/mediastream/MediaStream-video-element-track-stop-expected.txt
+++ /sdk/webkit/layout-test-results/fast/mediastream/MediaStream-video-element-track-stop-actual.txt
@@ -47,6 +47,7 @@
 mediaStream.getVideoTracks()[0].stop()
 mediaStream.getAudioTracks()[0].stop()
 
+Event 'canplaythrough'
 Event 'ended'
 
 **** re-check states now that the video stream has ended ****
@@ -54,7 +55,7 @@
 PASS video.videoWidth is 0
 PASS video.videoHeight is 0
 
-PASS video.videoTracks.length is 1
+FAIL video.videoTracks.length should be 1. Was 2.
 PASS video.videoTracks.selectedIndex is -1
 PASS video.videoTracks[0].selected is false

[Claudio Saavedra]

Similar situation with imported/w3c/web-platform-tests/mediacapture-streams/MediaStream-removetrack.https.html

See https://build.webkit.org/results/GTK-Linux-64-bit-Release-Tests/310431@main%20(24341)/results.html

[Claudio Saavedra]

https://results.webkit.org/?suite=layout-tests&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fmediacapture-streams%2FMediaStream-removetrack.https.html&test=fast%2Fmediastream%2FMediaStream-video-element-track-stop.html&platform=GTK&platform=WPE

[Philippe Normand]

*** Bug 307032 has been marked as a duplicate of this bug. ***

[Philippe Normand]

Pull request: https://github.com/WebKit/WebKit/pull/61979

[EWS]

Committed 310636@main (bdd2974c9e82): <https://commits.webkit.org/310636@main>

Reviewed commits have been landed. Closing PR #61979 and removing active labels.

[Radar WebKit Bug Importer]

<rdar://problem/174153504>