Add rip to audio script

Author: paulbovbel

roles/base/tasks/03-fs.yaml

@@ -3,10 +3,13 @@
   - name: install zfs
     apt:
       name:
-        - zfsutils-linux
-        - zfs-auto-snapshot
-        - zfs-zed
+        # - zfsutils-linux
+        # - zfs-auto-snapshot
+        # - zfs-zed
         - sendemail
+        - openzfs-zfsutils
+        - openzfs-zfs-zed
+        - openzfs-zfs-dkms
       state: latest
       update_cache: true
       cache_valid_time: 3600

roles/media-server/handlers/main.yaml

@@ -57,3 +57,14 @@
   with_items:
     - myanonamouse.timer
     - myanonamouse.service
+
+- name: enable rip-to-audio
+  systemd:
+    name: "{{ item }}"
+    enabled: true
+    state: "started"
+    daemon_reload: true
+  become: true
+  with_items:
+    - rip-to-audio.timer
+    - rip-to-audio.service

roles/media-server/tasks/00-media.yaml

@@ -97,6 +97,45 @@
   when: mam_id is defined
   notify: enable myanonamouse
 
+- name: create rip-to-audio script
+  template:
+    src: rip-to-audio.j2
+    dest: /usr/local/bin/rip-to-audio
+    mode: 0777
+  become: true
+
+- name: setup rip-to-audio service
+  copy:
+    content: |
+      [Unit]
+      Description=Rip audio
+
+      [Service]
+      Type=oneshot
+      ExecStart=/usr/local/bin/rip-to-audio '{{ tv_folder }}/Jeopardy!' '{{ audiobooks_folder }}/Jeopardy!'
+      User={{ ansible_user }}
+      Restart=no
+
+    dest: /etc/systemd/system/rip-to-audio.service
+  become: true
+  notify: enable rip-to-audio
+
+- name: setup rip-to-audio timer
+  copy:
+    content: |
+      [Unit]
+      Description=Rip audio
+
+      [Timer]
+      OnCalendar=daily
+      Persistent=true
+
+      [Install]
+      WantedBy=timers.target
+    dest: /etc/systemd/system/rip-to-audio.timer
+  become: true
+  notify: enable rip-to-audio
+
 # - name: configure jackett basepath
 #   replace:
 #     path: "{{ app_folder }}/jackett/Jackett/ServerConfig.json"

roles/media-server/templates/rip-to-audio.j2

@@ -0,0 +1,105 @@
+#!/usr/bin/env bash
+#
+# Usage: ./rip-to-audio <SOURCE_DIR> <TARGET_DIR>
+#
+# - Finds all *.mkv in SOURCE_DIR (recursive).
+# - Strips patterns like 'HDTV-720p' from the output filename.
+# - Tries to copy audio directly (no re-encode).
+# - If that fails, re-encode to AAC (VBR).
+# - Uses a .partial file to avoid corrupt final output on interruption.
+# - Skips files that already have a corresponding .m4a.
+# - Prevents ffmpeg from reading stdin (so it doesn't break the find-loop).
+
+set -euo pipefail
+
+if (( $# < 2 )); then
+  echo "Usage: $0 <SOURCE_DIR> <TARGET_DIR>"
+  exit 1
+fi
+
+SOURCE_DIR="$1"
+TARGET_DIR="$2"
+
+# Make sure ffmpeg is available
+if ! command -v ffmpeg &>/dev/null; then
+  echo "Error: ffmpeg not found."
+  exit 1
+fi
+
+# Remove video-related tags on the file
+STRIP_PATTERN='s/\s*HDTV.*//Ig'
+
+# Find all *.mkv files (case-insensitive) and process them one by one.
+# We use process substitution (`< <(...)`) so ffmpeg won't consume our loop's stdin.
+while IFS= read -r -d '' mkv_file; do
+  # 1) Compute the relative path within SOURCE_DIR
+  #    e.g.: /path/to/source/sub/Video.HDTV-720p.mkv
+  #          => sub/Video.HDTV-720p.mkv
+  rel_path="${mkv_file#"$SOURCE_DIR"/}"
+
+  # 2) Strip off .mkv to get the "raw" name; we also want to remove the directory part
+  #    so we can apply the sed-based pattern on the filename itself.
+  dir_part="$(dirname "$rel_path")"
+  base_no_ext="$(basename "${rel_path%.mkv}")"
+
+  # 3) Use sed to remove the 'HDTV-720p' pattern (and minor punctuation around it).
+  #    Adjust this as needed for other patterns like "WEB-1080p" or "BluRay.1080p".
+  cleaned_name="$(echo "$base_no_ext" | sed -E "$STRIP_PATTERN")"
+
+  # 4) Construct final out_file path, ensuring .m4a extension
+  #    e.g.: $TARGET_DIR/sub/Video.m4a
+  out_file="$TARGET_DIR/$dir_part/$cleaned_name.m4a"
+  partial_file="$out_file.partial"
+
+  # 5) Skip if final output already exists
+  if [[ -f "$out_file" ]]; then
+    echo "Skipping (already exists): $out_file"
+    continue
+  fi
+
+  # 6) Remove stale partial file if present
+  if [[ -f "$partial_file" ]]; then
+    echo "Removing stale partial: $partial_file"
+    rm -f "$partial_file"
+  fi
+
+  # 7) Create output directory if necessary
+  mkdir -p "$(dirname "$out_file")"
+
+  echo "Processing: $mkv_file"
+  echo "       to -> $out_file"
+
+  # 8) First, try copying the existing audio track (no re-encode)
+  #    -nostdin   => ffmpeg won't read from stdin
+  #    -vn        => drop video
+  #    -c:a copy  => copy audio bitstream
+  #    -f mp4     => produce an MP4 container (m4a is audio-only MP4)
+  #    -y         => overwrite partial file if it exists
+  set +e  # We'll handle ffmpeg failure manually
+  ffmpeg -nostdin \
+         -i "$mkv_file" \
+         -vn -c:a copy \
+         -f mp4 -y \
+         "$partial_file"
+  ffmpeg_status=$?
+  set -e
+
+  if (( ffmpeg_status != 0 )); then
+    echo "Audio copy failed (unsupported codec?), re-encoding to AAC VBR..."
+
+    # 9) Fallback: re-encode to AAC VBR
+    #    -q:a 2 => a typical VBR quality level (range ~0=best to ~5=lower)
+    ffmpeg -nostdin \
+           -i "$mkv_file" \
+           -vn -c:a aac -q:a 2 \
+           -f mp4 -y \
+           "$partial_file"
+  fi
+
+  # 10) Move partial to final output if successful
+  mv "$partial_file" "$out_file"
+
+  echo "Done: $out_file"
+  echo
+
+done < <(find "$SOURCE_DIR" -type f \( -iname "*.mkv" -o -iname "*.mp4" -o -iname "*.avi" -o -iname "*.mov" \) -print0)