From f748ff206801304b39b8e3222c5abf9551918713 Mon Sep 17 00:00:00 2001
From: Sacha Chua <sacha@sachachua.com>
Date: Mon, 28 Nov 2022 19:57:52 -0500
Subject: fallback for stream

---
 roles/stream/templates/emacsconf.nginx.conf |  2 +-
 roles/stream/templates/icecast.xml          | 32 +++++++++++++++++++++++++++--
 roles/stream/templates/screen-fallback.sh   | 11 ++++++++++
 roles/stream/templates/screen-fallbacks     |  6 ++++++
 roles/stream/templates/screen-restream.sh   |  2 +-
 5 files changed, 49 insertions(+), 4 deletions(-)
 create mode 100755 roles/stream/templates/screen-fallback.sh
 create mode 100755 roles/stream/templates/screen-fallbacks

(limited to 'roles/stream/templates')

diff --git a/roles/stream/templates/emacsconf.nginx.conf b/roles/stream/templates/emacsconf.nginx.conf
index 277c833..ac84ef5 100644
--- a/roles/stream/templates/emacsconf.nginx.conf
+++ b/roles/stream/templates/emacsconf.nginx.conf
@@ -1,4 +1,4 @@
-location ~ ^/((gen|dev)(-480p)?.webm)$ {
+location ~ ^/((gen|dev)(-480p|-fallback)?.webm)$ {
   proxy_pass http://127.0.0.1:{{ icecast_port }}/$1;
   proxy_http_version 1.1;
   proxy_buffering off;
diff --git a/roles/stream/templates/icecast.xml b/roles/stream/templates/icecast.xml
index d97a515..06830d3 100644
--- a/roles/stream/templates/icecast.xml
+++ b/roles/stream/templates/icecast.xml
@@ -200,6 +200,8 @@
         <public>1</public>
         <on-connect>/usr/local/bin/{{ emacsconf_id }}-lowres-{{ track.id }}-on-connect</on-connect>
         <on-disconnect>/usr/local/bin/{{ emacsconf_id }}-lowres-{{ track.id }}-on-disconnect</on-disconnect>
+        <fallback-mount>/{{ track.id }}-sorry.webm</fallback-mount>
+        <fallback-override>1</fallback-override>
     </mount>
     <mount type="normal">
         <mount-name>/{{ track.id }}-host.webm</mount-name>
@@ -221,6 +223,32 @@
 	      <stream-url>{{ track.watch_lowres }}</stream-url>
         <type>video/webm</type>
         <public>1</public>
+        <fallback-mount>/{{ track.id }}-480p-sorry.webm</fallback-mount>
+        <fallback-override>1</fallback-override>
+    </mount>
+    <mount type="normal">
+        <mount-name>/{{ track.id }}-sorry.webm</mount-name>
+        <username>{{ icecast_emacsconf_user }}</username>
+        <password>{{ icecast_emacsconf_password }}</password>
+        <stream-name>EmacsConf {{ emacsconf_year }} - {{ track.name }} - fallback track</stream-name>
+        <stream-description>The fallback stream for the {{ track.name }} track of {{ emacsconf_name }} {{ emacsconf_year }}</stream-description>
+	      <stream-url>{{ track.watch }}</stream-url>
+        <type>video/webm</type>
+        <public>1</public>
+        <hidden>1</hidden>
+        <!--fallback-mount>/{{ track.id }}-fallback.webm</fallback-mount-->
+    </mount>
+    <mount type="normal">
+        <mount-name>/{{ track.id }}-480p-sorry.webm</mount-name>
+        <username>{{ icecast_emacsconf_user }}</username>
+        <password>{{ icecast_emacsconf_password }}</password>
+        <stream-name>EmacsConf {{ emacsconf_year }} - {{ track.name }} - fallback track</stream-name>
+        <stream-description>The low-res fallback stream for the {{ track.name }} track of {{ emacsconf_name }} {{ emacsconf_year }}</stream-description>
+	      <stream-url>{{ track.watch }}</stream-url>
+        <type>video/webm</type>
+        <public>1</public>
+        <hidden>1</hidden>
+        <!--fallback-mount>/{{ track.id }}-fallback.webm</fallback-mount-->
     </mount>
     {% endfor %}
     {% if icecast_mounts is defined %}
@@ -279,8 +307,8 @@
     </paths>
 
     <logging>
-        <accesslog>access.log</accesslog>
-        <errorlog>error.log</errorlog>
+        <accesslog>emacsconf-access.log</accesslog>
+        <errorlog>emacsconf-error.log</errorlog>
         <!-- <playlistlog>playlist.log</playlistlog> -->
         <loglevel>3</loglevel> <!-- 4 Debug, 3 Info, 2 Warn, 1 Error -->
         <logsize>10000</logsize> <!-- Max size of a logfile -->
diff --git a/roles/stream/templates/screen-fallback.sh b/roles/stream/templates/screen-fallback.sh
new file mode 100755
index 0000000..9d816ba
--- /dev/null
+++ b/roles/stream/templates/screen-fallback.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# {{ ansible_managed }}
+
+SCREEN_NAME=fallback-{{ mount }}
+if screen -S $SCREEN_NAME -Q select ; then
+    echo "Already running; screen -S $SCREEN_NAME -X quit   if you need to restart"
+else
+    echo {{ filename }} - {{ mount }}
+    screen -dmS $SCREEN_NAME ffmpeg -r 20 -re -fflags +genpts -stream_loop -1 -i /usr/share/icecast2/web/{{ filename }} -map_metadata -1 -f webm -content_type video/webm -c:a copy -c:v copy icecast://{{ icecast_emacsconf_user }}:{{ icecast_emacsconf_password }}@localhost:8001/{{ mount }}
+    echo "Started screen; connect with screen -x $SCREEN_NAME"
+fi
diff --git a/roles/stream/templates/screen-fallbacks b/roles/stream/templates/screen-fallbacks
new file mode 100755
index 0000000..ade40e1
--- /dev/null
+++ b/roles/stream/templates/screen-fallbacks
@@ -0,0 +1,6 @@
+#!/bin/bash
+# {{ ansible_managed }}
+{% for track in emacsconf_tracks %}
+/usr/local/bin/screen-fallback-{{ track.id }} &
+/usr/local/bin/screen-fallback-{{ track.id }}-480p &
+{% endfor %}
diff --git a/roles/stream/templates/screen-restream.sh b/roles/stream/templates/screen-restream.sh
index 7466c48..e25f574 100755
--- a/roles/stream/templates/screen-restream.sh
+++ b/roles/stream/templates/screen-restream.sh
@@ -5,6 +5,6 @@ SCREEN_NAME=restream-{{ item[1].name }}-{{ item[0].name }}
 if screen -S $SCREEN_NAME -Q select ; then
     echo "Already restreaming; screen -S $SCREEN_NAME -X quit   if you need to restart"
 else
-    screen -dmS $SCREEN_NAME /home/{{ emacsconf_user }}/restream-{{ item[1].name }}-{{ item[0].name }}e.sh
+    screen -dmS $SCREEN_NAME /usr/local/bin/restream-{{ item[1].name }}-{{ item[0].name }}
     echo "Started screen; connect with screen -x $SCREEN_NAME"
 fi
-- 
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