add apply_album_art.sh

2 files changed, 41 insertions, 0 deletions

diff --git a/README.md b/README.md
index 19b2c66..5736f26 100644
--- a/README.md
+++ b/README.md
@@ -26,3 +26,6 @@ uv run main.py <base_dir> [--nolrc] [-n num_threads]
 ```
 
 Example: `uv run main.py <DIR_WITH_MUSIC>`
+
+# Other Tools
+`apply_album_art.sh` - Recursively traverse all folders, automatically apply album art and resize to all FLACs that have a JPG/PNG in the same directory
diff --git a/apply_album_art.sh b/apply_album_art.sh
new file mode 100755
index 0000000..eb13ce6
--- /dev/null
+++ b/apply_album_art.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if [[ $# -lt 1 ]]; then
+    echo "Usage: $0 <directory>"
+    exit 1
+fi
+
+input_dir="$1"
+
+find "$input_dir" -type d | while read -r dir; do
+    image=""
+    for ext in jpg JPG jpeg JPEG png PNG; do
+        found=$(find "$dir" -maxdepth 1 -type f -name "*.${ext}" | head -n 1)
+        if [[ -n "${found:-}" ]]; then
+            image="$found"
+            break
+        fi
+    done
+    [[ -z "$image" ]] && continue
+    echo "Processing folder: $dir"
+    echo "Using image: $image"
+    temp_cover="$(mktemp --suffix=.jpg)"
+    ffmpeg -y -i "$image" \
+        -vf "scale=500:500:force_original_aspect_ratio=decrease,pad=500:500:(ow-iw)/2:(oh-ih)/2" \
+        "$temp_cover" >/dev/null 2>&1
+    find "$dir" -maxdepth 1 -type f -iname "*.flac" | while read -r flac; do
+        echo "Tagging: $flac"
+
+        metaflac \
+            --remove-tag=METADATA_BLOCK_PICTURE \
+            --import-picture-from="$temp_cover" \
+            "$flac"
+    done
+
+    rm -f "$temp_cover"
+done