Caine
c7956ae9b2
Overnight transcoding, music discovery/import, system health reports, stats page generator, and bookmark management. Secrets stored in /etc/automation/ — not in repo.
82 lines
2.1 KiB
Bash
Executable File
82 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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# Transcode FLAC album to Opus, preserving metadata
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# Usage: ./transcode_album.sh <source_dir> [--delete-source]
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#
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# Converts all FLAC files to Opus 128kbps (transparent quality, ~10x smaller)
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# Preserves all metadata tags and album art
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set -e
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SOURCE_DIR="$1"
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DELETE_SOURCE=false
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BITRATE="128k"
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GROUP="mediaserver"
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if [[ "$2" == "--delete-source" ]]; then
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DELETE_SOURCE=true
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fi
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if [[ -z "$SOURCE_DIR" ]] || [[ ! -d "$SOURCE_DIR" ]]; then
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echo "Usage: $0 <source_directory> [--delete-source]"
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exit 1
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fi
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# Count FLAC files
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flac_count=$(find "$SOURCE_DIR" -maxdepth 1 -iname "*.flac" | wc -l)
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if [[ $flac_count -eq 0 ]]; then
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echo "No FLAC files found in $SOURCE_DIR"
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exit 0
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fi
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echo "Transcoding $flac_count FLAC files to Opus ($BITRATE)..."
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echo "Source: $SOURCE_DIR"
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converted=0
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failed=0
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# Process each FLAC file
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find "$SOURCE_DIR" -maxdepth 1 -iname "*.flac" | while read -r flac_file; do
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filename=$(basename "$flac_file")
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opus_file="${flac_file%.flac}.opus"
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opus_file="${opus_file%.FLAC}.opus"
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echo " Converting: $filename"
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if ffmpeg -hide_banner -loglevel warning -i "$flac_file" \
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-c:a libopus -b:a "$BITRATE" -vbr on \
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-map_metadata 0 \
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-y "$opus_file" 2>&1; then
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# Preserve original timestamp
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touch -r "$flac_file" "$opus_file"
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# Fix permissions
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chgrp "$GROUP" "$opus_file" 2>/dev/null || true
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chmod 664 "$opus_file" 2>/dev/null || true
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if $DELETE_SOURCE; then
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rm "$flac_file"
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echo " ✓ Converted and removed FLAC"
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else
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echo " ✓ Converted (FLAC kept)"
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fi
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((converted++)) || true
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else
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echo " ✗ Failed to convert"
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((failed++)) || true
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fi
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done
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# Also convert any MP3s that are suspiciously large (>15MB per file avg)
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# Actually, skip this - MP3s are already compressed
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# Handle cover art - keep it
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# ffmpeg should copy embedded art automatically for opus
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echo ""
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echo "Done! Converted $converted files."
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if $DELETE_SOURCE; then
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# Calculate space saved
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echo "FLAC files deleted to save space."
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fi
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