Adding updates to fartmachine

2026-03-17 22:06:41 +01:00
commit 9e15e32b94
56 changed files with 7306 additions and 0 deletions
@@ -0,0 +1,117 @@
+#!/usr/bin/env bash
+# to_mp3.sh — Convert .m4a and .wav files to .mp3
+#
+# Usage:
+#   ./to_mp3.sh <file_or_folder> [options]
+#
+# Options:
+#   --quality N    VBR quality 0-9 (default: 2 ≈ 190kbps; lower = better)
+#   --bitrate N    CBR bitrate e.g. 192k (overrides --quality)
+#   --replace      Delete originals after successful conversion
+#   --dry-run      Show what would be converted without doing anything
+#
+# Examples:
+#   ./to_mp3.sh recordings/
+#   ./to_mp3.sh interview.m4a
+#   ./to_mp3.sh recordings/ --replace
+#   ./to_mp3.sh recordings/ --bitrate 128k
+
+set -euo pipefail
+
+QUALITY=2
+BITRATE=""
+REPLACE=false
+DRY_RUN=false
+TARGET=""
+
+# Parse arguments
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+        --quality)  QUALITY="$2";  shift 2 ;;
+        --bitrate)  BITRATE="$2";  shift 2 ;;
+        --replace)  REPLACE=true;  shift ;;
+        --dry-run)  DRY_RUN=true;  shift ;;
+        -*)         echo "Unknown option: $1" >&2; exit 1 ;;
+        *)          TARGET="$1";   shift ;;
+    esac
+done
+
+if [[ -z "$TARGET" ]]; then
+    echo "Usage: $(basename "$0") <file_or_folder> [--quality N] [--bitrate N] [--replace] [--dry-run]"
+    exit 1
+fi
+
+if ! command -v ffmpeg &>/dev/null; then
+    echo "Error: ffmpeg not found." >&2
+    exit 1
+fi
+
+# Collect files
+files=()
+if [[ -f "$TARGET" ]]; then
+    files=("$TARGET")
+elif [[ -d "$TARGET" ]]; then
+    while IFS= read -r -d '' f; do
+        files+=("$f")
+    done < <(find "$TARGET" -maxdepth 1 -type f \( -iname "*.m4a" -o -iname "*.wav" \) -print0 | sort -z)
+else
+    echo "Error: '$TARGET' is not a file or directory." >&2
+    exit 1
+fi
+
+if [[ ${#files[@]} -eq 0 ]]; then
+    echo "No .m4a or .wav files found in: $TARGET"
+    exit 0
+fi
+
+# Build audio quality flags
+if [[ -n "$BITRATE" ]]; then
+    audio_flags=(-b:a "$BITRATE")
+    quality_desc="CBR ${BITRATE}"
+else
+    audio_flags=(-q:a "$QUALITY")
+    quality_desc="VBR quality ${QUALITY}"
+fi
+
+echo "Converting ${#files[@]} file(s) to MP3 (${quality_desc})"
+[[ "$REPLACE" == true ]] && echo "  Originals will be deleted after conversion."
+[[ "$DRY_RUN" == true ]] && echo "  Dry-run mode — no files will be written."
+echo ""
+
+converted=0
+skipped=0
+errors=0
+
+for src in "${files[@]}"; do
+    out="${src%.*}.mp3"
+
+    if [[ -f "$out" && "$DRY_RUN" == false ]]; then
+        echo "  $(basename "$src"): output already exists, skipping"
+        ((skipped++)) || true
+        continue
+    fi
+
+    size_mb=$(( $(stat -f%z "$src" 2>/dev/null || stat -c%s "$src") / 1048576 ))
+    printf "  %-40s (%d MB)" "$(basename "$src")" "$size_mb"
+
+    if [[ "$DRY_RUN" == true ]]; then
+        echo "  [dry-run] → $(basename "$out")"
+        continue
+    fi
+
+    if ffmpeg -i "$src" -vn "${audio_flags[@]}" -y "$out" -loglevel error; then
+        out_kb=$(( $(stat -f%z "$out" 2>/dev/null || stat -c%s "$out") / 1024 ))
+        echo "  → $(basename "$out") (${out_kb} KB)"
+        ((converted++)) || true
+        if [[ "$REPLACE" == true ]]; then
+            rm "$src"
+        fi
+    else
+        echo "  ERROR"
+        ((errors++)) || true
+        [[ -f "$out" ]] && rm "$out"
+    fi
+done
+
+echo ""
+echo "Done: ${converted} converted, ${skipped} skipped, ${errors} errors."