From 01f60c5d3e1dabfe14ad1405e61255788b4a8a28 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Tue, 9 Apr 2024 00:50:51 +0200
Subject: streaming/mpv-headless: start mpv with --idle and use json IPC to
 control it - this way the output resolution is automatically maintained by
 mpv (aka no video= kernel command line option needed)

---
 inventory/host_vars/ele-tarvos.yml                      |  1 -
 roles/streaming/mpv-headless/defaults/main.yml          |  4 ----
 roles/streaming/mpv-headless/tasks/main.yml             | 11 ++---------
 roles/streaming/mpv-headless/templates/ssh-forced.sh.j2 |  4 ++--
 4 files changed, 4 insertions(+), 16 deletions(-)

diff --git a/inventory/host_vars/ele-tarvos.yml b/inventory/host_vars/ele-tarvos.yml
index 06cf9711..b0a3423c 100644
--- a/inventory/host_vars/ele-tarvos.yml
+++ b/inventory/host_vars/ele-tarvos.yml
@@ -23,7 +23,6 @@ install:
       mountpoint: /home
   kernel_cmdline:
     - "consoleblank=0"
-    - "video=1920x1080@50"
 
 network:
   nameservers: "{{ network_zones.lan.dns }}"
diff --git a/roles/streaming/mpv-headless/defaults/main.yml b/roles/streaming/mpv-headless/defaults/main.yml
index 0ef41a75..847dc2aa 100644
--- a/roles/streaming/mpv-headless/defaults/main.yml
+++ b/roles/streaming/mpv-headless/defaults/main.yml
@@ -5,9 +5,5 @@
 mpv_headless_audio_device: "alsa/hdmi"
 mpv_headless_video_mode: "1920x1080@50"
 
-mpv_headless_play_script: |
-  #!/bin/sh
-  exec mpv --osd-level=0 --audio-device='{{ mpv_headless_audio_device }}' --vo=gpu --hwdec=vaapi --gpu-context=drm --drm-mode='{{ mpv_headless_video_mode }}' $@
-
 # mpv_headless_ssh_keys:
 #   - ssh-ed25519 ...
diff --git a/roles/streaming/mpv-headless/tasks/main.yml b/roles/streaming/mpv-headless/tasks/main.yml
index f3a1e684..027c1c69 100644
--- a/roles/streaming/mpv-headless/tasks/main.yml
+++ b/roles/streaming/mpv-headless/tasks/main.yml
@@ -9,6 +9,7 @@
     - firmware-linux
     - ffmpeg
     - mpv
+    - socat
     state: present
 
 - name: install non-free vaapi drivers
@@ -54,7 +55,7 @@
         case $(tty) in
           /dev/tty1)
             setterm --clear=all --cursor off --background black
-            sleep inf
+            exec mpv --osd-level=0 --no-osc --audio-device='{{ mpv_headless_audio_device }}' --vo=gpu --hwdec=vaapi --gpu-context=drm --drm-mode='{{ mpv_headless_video_mode }}' --force-window=immediate --input-ipc-server=/var/lib/player/ctl.sock --idle
             ;;
         esac
       fi
@@ -62,14 +63,6 @@
     owner: player
     group: player
 
-- name: install play script
-  copy:
-    content: "{{ mpv_headless_play_script }}"
-    dest: /var/lib/player/play
-    owner: player
-    group: player
-    mode: 0755
-
 - name: install ssh forced command
   template:
     src: ssh-forced.sh.j2
diff --git a/roles/streaming/mpv-headless/templates/ssh-forced.sh.j2 b/roles/streaming/mpv-headless/templates/ssh-forced.sh.j2
index 777f0b32..35e9571e 100644
--- a/roles/streaming/mpv-headless/templates/ssh-forced.sh.j2
+++ b/roles/streaming/mpv-headless/templates/ssh-forced.sh.j2
@@ -15,14 +15,14 @@ case "$command" in
   play)
     media_file="/srv/media/$(basename "$arg")"
     if [ -e "$media_file" ]; then
-      exec ./play "$media_file"
+      echo '{"command": ["loadfile", "'"$media_file"'"]}' | socat - /var/lib/player/ctl.sock
     else
       echo "file '$media_file' not found!"
       exit 1
     fi
     ;;
   stop)
-    killall mpv
+    echo '{"command": ["playlist-remove", "current"]}' | socat - /var/lib/player/ctl.sock
     ;;
   *)
     echo "invalid command: '$command'"
-- 
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