jibri: default to recording in 720p

jibri/rootfs/defaults/jibri.conf

@@ -1,4 +1,5 @@
 {{ $JIBRI_USAGE_TIMEOUT := .Env.JIBRI_USAGE_TIMEOUT | default "0" -}}
+{{ $JIBRI_RECORDING_RESOLUTION := .Env.JIBRI_RECORDING_RESOLUTION | default "1280x720" -}}
 {{ $XMPP_TRUST_ALL_CERTS := .Env.XMPP_TRUST_ALL_CERTS | default "true" | toBool -}}
 
 jibri {
@@ -82,9 +83,7 @@ jibri {
     }
 
     ffmpeg {
-      {{ if .Env.JIBRI_RECORDING_RESOLUTION -}}
-      resolution =  "{{ .Env.JIBRI_RECORDING_RESOLUTION }}"
-      {{ end -}}
+      resolution =  "{{ $JIBRI_RECORDING_RESOLUTION }}"
       {{ if .Env.JIBRI_FFMPEG_AUDIO_SOURCE -}}
       // The audio source that will be used to capture audio on Linux
       audio-source = "{{ .Env.JIBRI_FFMPEG_AUDIO_SOURCE }}"

jibri/rootfs/defaults/xorg-video-dummy.conf

@@ -1,3 +1,5 @@
+{{ $JIBRI_RECORDING_RESOLUTION := .Env.JIBRI_RECORDING_RESOLUTION | default "1280x720" -}}
+
 # This xorg configuration file is meant to be used by xpra
 # to start a dummy X11 server.
 # For details, please see:
@@ -109,11 +111,7 @@ Section "Screen"
     Viewport 0 0
     Depth 24
     Modes "5120x3200" "3840x2880" "3840x2560" "3840x2048" "2048x2048" "2560x1600" "1920x1440" "1920x1200" "1920x1080" "1600x1200" "1680x1050" "1600x900" "1400x1050" "1440x900" "1280x1024" "1366x768" "1280x800" "1024x768" "1024x600" "800x600" "320x200"
-    {{ if .Env.JIBRI_RECORDING_RESOLUTION -}}
-    Virtual {{ join " " (splitList "x" .Env.JIBRI_RECORDING_RESOLUTION) }}
-    {{ else -}}
-    Virtual 1920 1080
-    {{ end -}}
+    Virtual {{ join " " (splitList "x" $JIBRI_RECORDING_RESOLUTION) }}
   EndSubSection
 EndSection