355 lines
14 KiB
Bash
Executable File
355 lines
14 KiB
Bash
Executable File
#!/usr/bin/env bash
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# videocmp_select.sh
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#
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# Modes:
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# 1) Pair mode: compare A and B
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# ./videocmp_select.sh A.mp4 B.mp4 [options]
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#
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# 2) Directory scan mode: group files by the **first token before the first underscore** in the basename
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# ./videocmp_select.sh --scan-dir [DIR] [--recursive] [options]
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# (DIR defaults to "." if omitted)
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#
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# Examples of grouping by first token:
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# Becky_California.mp4, Becky_California.1.mp4 → group key "Becky"
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# Bianca_Golden.mp4, Bianca_Golden_Cut.mp4 → group key "Bianca"
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# Emylia.mp4, Emylia_Argan.mp4, Emylia_Wish.mp4 → group key "Emylia"
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#
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# Pipeline:
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# 1) Validate files (ffprobe fields + ffmpeg deep decode)
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# 2) Confirm same movie via snapshot SSIM @ --snapshot-time (default 12s)
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# 3) Optional: run external compare impl (simple/advanced) for logging
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# 4) Pick preferred: prefer --prefer-height (default 720), then longer duration, then larger file
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# 5) Act on loser: --action print|move|delete (with --dry-run)
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#
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# Common options:
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# --snapshot-time SEC (default: 12)
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# --snapshot-scale WxH (default: 320:-1)
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# --snapshot-ssim THRESH (default: 0.97)
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# --impl simple|advanced (default: simple) # logs only
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# --impl-simple PATH (default: ./compare_simple.sh)
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# --impl-advanced PATH (default: ./compare_advanced.sh)
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# --impl-optional (default) warn if impl missing
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# --impl-required error if chosen impl missing
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# --prefer-height N (default: 720)
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# --duration-eps SEC (default: 0.0)
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# --action print|move|delete (default: print)
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# --trash-dir PATH (default: $HOME/.video_trash)
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# --dry-run
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# --verbose
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#
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# Directory-scan options:
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# --scan-dir [DIR] Enable directory mode (DIR optional; default ".")
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# --recursive, -r Recurse into subfolders
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# (Note: delimiter-based grouping is deprecated; this script now groups by first underscore token.)
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#
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# Exit codes:
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# 0 success | 1 differ/broken | 2 usage | 3 missing dependency
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set -u
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# -------- defaults --------
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SNAP_T="12"
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SNAP_SCALE="320:-1"
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SNAP_SSIM="0.97"
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IMPL="simple"
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IMPL_SIMPLE="./compare_simple.sh"
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IMPL_ADV="./compare_advanced.sh"
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IMPL_REQUIRED=0
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PREF_HEIGHT=720
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DURATION_EPS=0.0
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ACTION="print"
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TRASH_DIR="${HOME}/.video_trash"
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DRY=0
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VERBOSE=0
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SCAN_DIR=""
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RECURSIVE=0
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# -------- helpers --------
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need() { command -v "$1" >/dev/null 2>&1 || { echo "Missing dependency: $1" >&2; exit 3; }; }
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v() { [[ $VERBOSE -eq 1 ]] && echo "[LOG]" "$@" >&2; }
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die() { echo "[ERR]" "$@" >&2; exit 1; }
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need ffmpeg; need ffprobe; need awk; need grep; need stat; need sed; need tr; need find
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# -------- array-based option parser --------
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ARGS=("$@")
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REM_ARR=()
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i=0
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while (( i < ${#ARGS[@]} )); do
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arg="${ARGS[i]}"
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case "$arg" in
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--snapshot-time) SNAP_T="${ARGS[i+1]:-}"; i=$((i+2));;
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--snapshot-scale) SNAP_SCALE="${ARGS[i+1]:-}"; i=$((i+2));;
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--snapshot-ssim) SNAP_SSIM="${ARGS[i+1]:-}"; i=$((i+2));;
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--impl) IMPL="${ARGS[i+1]:-}"; i=$((i+2));;
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--impl-simple) IMPL_SIMPLE="${ARGS[i+1]:-}"; i=$((i+2));;
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--impl-advanced) IMPL_ADV="${ARGS[i+1]:-}"; i=$((i+2));;
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--impl-optional) IMPL_REQUIRED=0; i=$((i+1));;
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--impl-required) IMPL_REQUIRED=1; i=$((i+1));;
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--prefer-height) PREF_HEIGHT="${ARGS[i+1]:-}"; i=$((i+2));;
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--duration-eps) DURATION_EPS="${ARGS[i+1]:-}"; i=$((i+2));;
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--action) ACTION="${ARGS[i+1]:-}"; i=$((i+2));;
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--trash-dir) TRASH_DIR="${ARGS[i+1]:-}"; i=$((i+2));;
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--dry-run) DRY=1; i=$((i+1));;
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--verbose) VERBOSE=1; i=$((i+1));;
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--scan-dir)
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# optional arg: use next token unless it looks like another option
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next="${ARGS[i+1]:-}"
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if [[ -n "$next" && "$next" != --* ]]; then
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SCAN_DIR="$next"; i=$((i+2))
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else
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SCAN_DIR="."; i=$((i+1))
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fi
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;;
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--recursive|-r) RECURSIVE=1; i=$((i+1));;
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--delimiter|--delim) # backward-compat: ignore but warn once
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echo "[WARN] --delimiter is deprecated; grouping now uses first underscore token." >&2
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i=$((i+ (arg=="--delimiter"?2:1) )) ;;
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--help|-h)
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grep -E '^# ' "$0" | sed 's/^# //'
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exit 0 ;;
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*)
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# leave positional for pair mode
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REM_ARR+=("$arg"); i=$((i+1));;
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esac
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done
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v "[DBG] Options: SCAN_DIR='${SCAN_DIR:-}' RECURSIVE=$RECURSIVE PREF_HEIGHT=$PREF_HEIGHT SNAP_T=$SNAP_T"
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# -------- core functions --------
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probe_meta() { # file -> "w h dur codec size"
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local f="$1" size w h dur vcodec
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size=$(stat -c%s "$f" 2>/dev/null || stat -f%z "$f")
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w=$(ffprobe -v error -select_streams v:0 -show_entries stream=width -of default=nw=1:nk=1 "$f" || echo 0)
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h=$(ffprobe -v error -select_streams v:0 -show_entries stream=height -of default=nw=1:nk=1 "$f" || echo 0)
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dur=$(ffprobe -v error -show_entries format=duration -of default=nw=1:nk=1 "$f" || echo 0)
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vcodec=$(ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=nw=1:nk=1 "$f" || echo "?")
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echo "$w $h $dur $vcodec $size"
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}
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check_ok() { # file -> 0 ok / 1 bad
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local f="$1" w h dur
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w=$(ffprobe -v error -select_streams v:0 -show_entries stream=width -of default=nw=1:nk=1 "$f" 2>/dev/null || echo "")
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h=$(ffprobe -v error -select_streams v:0 -show_entries stream=height -of default=nw=1:nk=1 "$f" 2>/dev/null || echo "")
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dur=$(ffprobe -v error -show_entries format=duration -of default=nw=1:nk=1 "$f" 2>/dev/null || echo "")
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if [[ -z "$w" || -z "$h" || "$w" = "N/A" || "$h" = "N/A" || "$w" -eq 0 || "$h" -eq 0 ]]; then
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echo "BROKEN(ffprobe: no valid video stream): $f" >&2; return 1; fi
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if [[ -n "$dur" && "$dur" != "N/A" ]]; then
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awk -v d="$dur" 'BEGIN{exit !(d+0>0)}' || { echo "BROKEN(ffprobe: nonpositive duration): $f" >&2; return 1; }
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fi
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if ! ffmpeg -v error -xerror -i "$f" -f null - -nostats >/dev/null 2>&1; then
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echo "BROKEN(ffmpeg decode): $f" >&2; return 1; fi
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return 0
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}
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snapshot_compare_ssim() { # f1 f2 time scale -> "ssim" (empty if fail)
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local f1="$1" f2="$2" t="$3" sc="$4"
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local tmpd s1 s2 log ssim
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tmpd="$(mktemp -d)"; s1="$tmpd/1.png"; s2="$tmpd/2.png"; log="$tmpd/cmp.log"
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ffmpeg -hide_banner -v error -y -ss "$t" -i "$f1" -frames:v 1 -vf "scale=$sc,format=yuv420p" "$s1" || true
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ffmpeg -hide_banner -v error -y -ss "$t" -i "$f2" -frames:v 1 -vf "scale=$sc,format=yuv420p" "$s2" || true
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if [[ ! -s "$s1" || ! -s "$s2" ]]; then rm -rf "$tmpd"; echo ""; return 0; fi
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ffmpeg -hide_banner -v info -i "$s1" -i "$s2" -lavfi "ssim" -f null - > /dev/null 2> "$log" || true
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ssim="$(grep -Eo 'All:[0-9]+(\.[0-9]+)?' "$log" | head -n1 | cut -d: -f2)"
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[[ -z "$ssim" ]] && ssim="$(grep -Eo 'SSIM [^ ]* All:[0-9]+(\.[0-9]+)?' "$log" | awk -F'All:' '{print $2}' | head -n1)"
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[[ -z "$ssim" ]] && ssim="$(grep -Eo 'SSIM Y:[0-9]+(\.[0-9]+)?' "$log" | head -n1 | cut -d: -f2)"
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rm -rf "$tmpd"; echo "$ssim"
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}
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run_impl() { # impl, A, B
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local which="$1" f1="$2" f2="$3" path=""
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[[ "$which" == "advanced" ]] && path="$IMPL_ADV" || path="$IMPL_SIMPLE"
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if [[ ! -x "$path" ]]; then
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if [[ $IMPL_REQUIRED -eq 1 ]]; then
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die "Requested --impl=$which but script not found/executable at $path"
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else
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echo "[impl:$which] not found ($path) — skipping" >&2; return 0
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fi
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fi
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echo "[impl:$which] $path \"$f1\" \"$f2\"" >&2
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"$path" "$f1" "$f2" 2>&1 | sed -n '1,12p' >&2
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}
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score_file() { # file -> "tier720 dur size"
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local f="$1"
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read -r W H DUR VC SIZE <<<"$(probe_meta "$f")"
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local tier=1; [[ "$H" -eq "$PREF_HEIGHT" ]] && tier=0
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echo "$tier $DUR $SIZE"
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}
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pick_winner() { # A B -> "KEEP|DROP|why"
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local a="$1" b="$2"
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read -r aTier aDur aSize <<<"$(score_file "$a")"
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read -r bTier bDur bSize <<<"$(score_file "$b")"
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v "Quality scores: A[tier=$aTier dur=$aDur size=$aSize] B[tier=$bTier dur=$bDur size=$bSize]"
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if (( aTier < bTier )); then echo "$a|$b|prefer ${PREF_HEIGHT}p (A)"; return 0; fi
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if (( bTier < aTier )); then echo "$b|$a|prefer ${PREF_HEIGHT}p (B)"; return 0; fi
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awk -v A="$aDur" -v B="$bDur" -v eps="$DURATION_EPS" 'BEGIN{
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if ((A-B) > eps) print "A"; else if ((B-A) > eps) print "B"; else print "TIE";
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}' | {
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read who
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if [[ "$who" == "A" ]]; then echo "$a|$b|longer duration (A)"; return 0; fi
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if [[ "$who" == "B" ]]; then echo "$b|$a|longer duration (B)"; return 0; fi
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if (( aSize > bSize )); then echo "$a|$b|larger file size (A)"; else
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if (( bSize > aSize )); then echo "$b|$a|larger file size (B)"; else
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echo "$a|$b|tie-break (keep A)"; fi; fi
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}
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}
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act_on_loser() { # loser keep
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local loser="$1" keeper="$2"
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case "$ACTION" in
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print)
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echo "[ACTION] Keep: $keeper"
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echo "[ACTION] Drop: $loser"
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;;
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move)
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mkdir -p -- "$TRASH_DIR"
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if [[ $DRY -eq 1 ]]; then
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echo "[ACTION] dry-run: mv \"$loser\" \"$TRASH_DIR/\""
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else
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mv -- "$loser" "$TRASH_DIR/" && echo "[ACTION] moved to trash: $loser -> $TRASH_DIR/"
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fi
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echo "[ACTION] kept: $keeper"
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;;
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delete)
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if [[ $DRY -eq 1 ]]; then
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echo "[ACTION] dry-run: rm \"$loser\""
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else
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rm -- "$loser" && echo "[ACTION] deleted: $loser"
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fi
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echo "[ACTION] kept: $keeper"
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;;
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*) echo "[WARN] Unknown --action='$ACTION' → printing only."; echo "[ACTION] Keep: $keeper ; Drop: $loser" ;;
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esac
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}
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same_movie_or_skip() { # A B -> 0 if same (SSIM>=thr), else 1
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local a="$1" b="$2" ssim
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echo "== Snapshot compare @${SNAP_T}s: ==" >&2
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ssim="$(snapshot_compare_ssim "$a" "$b" "$SNAP_T" "$SNAP_SCALE")"
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if [[ -z "$ssim" ]]; then
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echo "[WARN] Could not compute SSIM for: $a vs $b" >&2; return 1; fi
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printf "[INFO] SSIM(All) %s vs %s → %s\n" "$(basename -- "$a")" "$(basename -- "$b")" "$ssim" >&2
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awk -v s="$ssim" -v thr="$SNAP_SSIM" 'BEGIN{exit !(s+0 >= thr+0)}'
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}
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# ----- directory scan helpers/drivers -----
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scan_and_collect() {
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if [[ $RECURSIVE -eq 1 ]]; then
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mapfile -t FILES < <(find "$SCAN_DIR" -type f \( -iname '*.mp4' -o -iname '*.m4v' -o -iname '*.mov' -o -iname '*.mkv' \))
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else
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mapfile -t FILES < <(find "$SCAN_DIR" -maxdepth 1 -type f \( -iname '*.mp4' -o -iname '*.m4v' -o -iname '*.mov' -o -iname '*.mkv' \))
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fi
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}
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# New grouping rule: key = first token of basename (without extension) before the first underscore.
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# If there is no underscore, the whole basename (without extension) is the key.
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first_underscore_key() {
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local base extless key
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base="$(basename -- "$1")"
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extless="${base%.*}"
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if [[ "$extless" == *_* ]]; then
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key="${extless%%_*}"
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else
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key="$extless"
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fi
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echo "$key"
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}
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process_group() { # files...
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local files=("$@") n=${#files[@]}
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if (( n < 2 )); then v "Group <2 files → skip"; return 0; fi
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echo; echo "=== Group (${n} files): first-underscore key '$(first_underscore_key "${files[0]}")' ==="
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echo "Files:"; for f in "${files[@]}"; do echo " - $f"; done
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local best="${files[0]}"
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if ! check_ok "$best"; then echo "[WARN] Skipping broken file: $best"; return 0; fi
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for ((i=1;i<n;i++)); do
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local cand="${files[i]}"
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if ! check_ok "$cand"; then echo "[WARN] Skipping broken file: $cand"; continue; fi
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echo; echo "--- Compare: $(basename -- "$best") vs $(basename -- "$cand") ---"
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if ! same_movie_or_skip "$best" "$cand"; then
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echo "[SKIP] Snapshot says NOT same movie; leaving both in place."; continue; fi
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run_impl "$IMPL" "$best" "$cand"
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read -r keep drop why <<<"$(pick_winner "$best" "$cand" | tr '|' ' ')"
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echo "[DECISION] Keep: $keep"; echo "[DECISION] Drop: $drop"; echo "[REASON] $why"
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act_on_loser "$drop" "$keep"
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best="$keep"
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done
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echo; echo "=== Group result: kept $(basename -- "$best") ==="
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}
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dir_mode() {
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[[ -n "${SCAN_DIR:-}" ]] || SCAN_DIR="."
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[[ -d "$SCAN_DIR" ]] || die "Not a directory: $SCAN_DIR"
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echo ">> Directory scan mode on: $SCAN_DIR (recursive=$RECURSIVE, grouping=first-underscore)"
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scan_and_collect
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if [[ ${#FILES[@]} -eq 0 ]]; then echo "No video files found."; exit 0; fi
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declare -A groups
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local f base key
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for f in "${FILES[@]}"; do
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base="$(basename -- "$f")"
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key="$(first_underscore_key "$base")"
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groups["$key"]+=$'\n'"$f"
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done
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for k in "${!groups[@]}"; do
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IFS=$'\n' read -r -d '' -a grpfiles < <(printf "%s" "${groups[$k]}" | sed '/^$/d' | sort -u && printf '\0')
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process_group "${grpfiles[@]}"
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done
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echo; echo ">> Directory scan complete."
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}
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# ----- pair comparison driver -----
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compare_pair() { # A B
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local A="$1" B="$2"
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echo "== Step 1: Validating files =="; okA=0; okB=0
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check_ok "$A" && okA=1; check_ok "$B" && okB=1
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if (( okA==0 || okB==0 )); then echo "[FAIL] One or both files broken. A_ok=$okA B_ok=$okB" >&2; exit 1; fi
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echo "[OK] Both files decoded cleanly."
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echo; echo "== Step 2: Snapshot compare ==";
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if ! same_movie_or_skip "$A" "$B"; then
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echo "[FAIL] Files are not the same movie (SSIM < ${SNAP_SSIM})." >&2; exit 1
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fi
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echo "[OK] Same movie."
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echo; echo "== Step 3: External compare ($IMPL) =="; run_impl "$IMPL" "$A" "$B"
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echo; echo "== Step 4: Quality selection (prefer ${PREF_HEIGHT}p) ==";
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read -r keep drop why <<<"$(pick_winner "$A" "$B" | tr '|' ' ')"
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echo "[DECISION] Keep: $keep"; echo "[DECISION] Drop: $drop"; echo "[REASON] $why"
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echo; echo "== Step 5: Action =="; act_on_loser "$drop" "$keep"
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echo; echo "== Summary =="; echo "Kept: $keep"; echo "Dropped: $drop"
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[[ "$ACTION" == "move" ]] && echo "(Moved loser to: $TRASH_DIR)"
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[[ "$ACTION" == "delete" ]] && echo "(Loser was deleted)"
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[[ $DRY -eq 1 ]] && echo "(Dry-run only; no changes made)"
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}
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# -------- dispatch --------
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if [[ -n "${SCAN_DIR:-}" ]]; then
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dir_mode
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exit 0
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fi
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# Pair mode
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if [[ ${#REM_ARR[@]} -lt 2 ]]; then
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echo "Usage (pair): $0 A.mp4 B.mp4 [options]" >&2
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echo " or (scan): $0 --scan-dir [DIR] [--recursive] [options]" >&2
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exit 2
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fi
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A="${REM_ARR[0]}"; B="${REM_ARR[1]}"
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[[ -f "$A" ]] || die "File not found: $A"
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[[ -f "$B" ]] || die "File not found: $B"
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compare_pair "$A" "$B"
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