Merge pull request #4060 from grandixximo/fix/4058-ui-smoke-sound

test: suppress audio output in ui-smoke launcher

Author: BsAtHome

tests/ui-smoke/_lib/asound.conf

@@ -0,0 +1,10 @@
+# Loaded via ALSA_CONFIG_PATH by ui-smoke launch.sh. Redirect the
+# default PCM/CTL to alsa-lib's null devices to silence the tests.
+<confdir:alsa.conf>
+
+pcm.!default {
+    type null
+}
+ctl.!default {
+    type null
+}

tests/ui-smoke/_lib/launch.sh

@@ -41,6 +41,14 @@ export QT_QUICK_BACKEND=software
 export QSG_RHI_BACKEND=software
 export QT_OPENGL=software
 
+# Silence audio: xvfb covers X but not sound. Demote every Gst
+# Audio/Sink and disable canberra/SDL/pulse/ALSA-default paths.
+export ALSA_CONFIG_PATH="$LIB_DIR/asound.conf"
+export CANBERRA_DRIVER=null
+export GST_PLUGIN_FEATURE_RANK="pulsesink:NONE,alsasink:NONE,osssink:NONE,oss4sink:NONE,jackaudiosink:NONE,pipewiresink:NONE,openalsink:NONE"
+export PULSE_SERVER=/dev/null
+export SDL_AUDIODRIVER=dummy
+
 # Export the per-invocation values so the inner bash -c receives them
 # as proper env vars (avoids embedding paths into the inner script
 # via quoting, which breaks on apostrophes / spaces).