1246 lines
46 KiB
Python
Executable File
1246 lines
46 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Overnight Video Transcoder
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Transcodes large video files to HEVC to save space.
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Runs via cron between 02:00-07:00.
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Usage:
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overnight_transcoder.py # Normal run
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overnight_transcoder.py --dry # Dry run - show what would be transcoded
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overnight_transcoder.py --stats # Show statistics
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overnight_transcoder.py --verbose # Extra debug output
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"""
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import os
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import sys
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import json
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import subprocess
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import shutil
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import logging
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import argparse
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import sqlite3
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import traceback
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import re
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import signal
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from pathlib import Path
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from datetime import datetime, time
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from typing import Optional, List, Dict, Tuple
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from contextlib import contextmanager
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# Parse arguments
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parser = argparse.ArgumentParser(description="Overnight video transcoder")
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parser.add_argument("--dry", action="store_true", help="Dry run - don't transcode, just show what would happen")
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parser.add_argument("--stats", action="store_true", help="Show cache statistics and exit")
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parser.add_argument("--failed", action="store_true", help="Show failed transcodes and exit")
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parser.add_argument("--retry-failed", action="store_true", help="Reset failed files to pending for retry")
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parser.add_argument("--clear-cache", action="store_true", help="Clear the cache and exit")
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parser.add_argument("--verbose", "-v", action="store_true", help="Verbose debug output")
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parser.add_argument("--json-log", action="store_true", help="Output structured JSON logs (one per line)")
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args = parser.parse_args()
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DRY_RUN = args.dry
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VERBOSE = args.verbose
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JSON_LOG = args.json_log
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# Track current transcode for signal handling
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CURRENT_TRANSCODE = {"path": None, "pid": None, "start_time": None}
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# Configuration
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CONFIG = {
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"source_dirs": [
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"/disks/Plex/Anime",
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"/disks/Plex/Films",
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"/disks/Plex/TV",
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],
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"cleanup_dir": "/disks/Plex/.cleanup",
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"log_dir": "/var/log",
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"log_file": "/var/log/transcoder.log",
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"db_file": "/var/lib/transcoder/cache.db",
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"video_extensions": [".mkv", ".mp4", ".avi", ".m4v", ".mov", ".wmv"],
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"cutoff_time": time(6, 30), # Don't start new encodes after 06:30
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"cleanup_days": 7, # Delete originals after 7 days
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# FFmpeg settings
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"crf": 20,
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"preset": "slow",
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"audio_codec": "ac3",
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"audio_bitrate": "640k",
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"threads": 12,
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}
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def init_db() -> sqlite3.Connection:
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"""Initialize the SQLite database for caching file info."""
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db_path = Path(CONFIG["db_file"])
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db_path.parent.mkdir(parents=True, exist_ok=True)
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conn = sqlite3.connect(CONFIG["db_file"])
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# Main files table - tracks all video files
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conn.execute("""
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CREATE TABLE IF NOT EXISTS files (
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path TEXT PRIMARY KEY,
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filename TEXT,
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directory TEXT,
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original_size INTEGER,
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mtime REAL,
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video_codec TEXT,
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audio_codec TEXT,
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is_hevc INTEGER,
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first_seen REAL,
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scanned_at REAL,
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-- Transcode info (NULL if not transcoded)
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status TEXT DEFAULT 'pending', -- pending, transcoding, done, failed, stalled
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transcoded_at REAL,
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transcoded_size INTEGER,
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transcode_duration_secs REAL,
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transcode_settings TEXT, -- JSON: {crf, preset, audio_codec, audio_bitrate}
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failure_reason TEXT,
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-- Computed (updated after transcode)
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space_saved INTEGER,
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compression_ratio REAL
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)
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""")
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conn.execute("CREATE INDEX IF NOT EXISTS idx_is_hevc ON files(is_hevc)")
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conn.execute("CREATE INDEX IF NOT EXISTS idx_status ON files(status)")
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conn.execute("CREATE INDEX IF NOT EXISTS idx_size ON files(original_size)")
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conn.execute("CREATE INDEX IF NOT EXISTS idx_directory ON files(directory)")
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# Stats summary table - running totals
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conn.execute("""
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CREATE TABLE IF NOT EXISTS stats (
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id INTEGER PRIMARY KEY CHECK (id = 1), -- Single row
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total_files_transcoded INTEGER DEFAULT 0,
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total_space_saved INTEGER DEFAULT 0,
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total_transcode_time_secs REAL DEFAULT 0,
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last_updated REAL
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)
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""")
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conn.execute("INSERT OR IGNORE INTO stats (id) VALUES (1)")
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conn.commit()
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return conn
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def get_audio_codec(filepath: str) -> Optional[str]:
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"""Get the audio codec of a file using ffprobe."""
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try:
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result = subprocess.run([
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"ffprobe", "-v", "quiet",
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"-select_streams", "a:0",
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"-show_entries", "stream=codec_name",
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"-of", "json",
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filepath
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], capture_output=True, text=True, timeout=30)
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if result.returncode == 0:
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data = json.loads(result.stdout)
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streams = data.get("streams", [])
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if streams:
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return streams[0].get("codec_name", "").lower()
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except Exception as e:
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log.warning(f"Failed to probe audio {filepath}: {e}")
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return None
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def get_cached_file(conn: sqlite3.Connection, filepath: str, size: int, mtime: float) -> Optional[dict]:
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"""Get cached file info if file hasn't changed. Returns dict or None."""
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cursor = conn.execute(
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"""SELECT video_codec, audio_codec, is_hevc, status
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FROM files WHERE path = ? AND original_size = ? AND mtime = ?""",
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(filepath, size, mtime)
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)
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row = cursor.fetchone()
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if row:
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return {
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"video_codec": row[0],
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"audio_codec": row[1],
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"is_hevc": bool(row[2]),
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"status": row[3]
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}
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return None
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def cache_file(conn: sqlite3.Connection, filepath: str, size: int, mtime: float,
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video_codec: str, audio_codec: str, is_hevc: bool):
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"""Cache file info."""
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p = Path(filepath)
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now = datetime.now().timestamp()
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# Check if file already exists (to preserve first_seen)
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cursor = conn.execute("SELECT first_seen FROM files WHERE path = ?", (filepath,))
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row = cursor.fetchone()
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first_seen = row[0] if row else now
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conn.execute("""
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INSERT OR REPLACE INTO files
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(path, filename, directory, original_size, mtime, video_codec, audio_codec,
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is_hevc, first_seen, scanned_at, status)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?,
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COALESCE((SELECT status FROM files WHERE path = ?), 'pending'))
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""", (filepath, p.name, str(p.parent), size, mtime, video_codec, audio_codec,
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int(is_hevc), first_seen, now, filepath))
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conn.commit()
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def update_transcode_result(conn: sqlite3.Connection, filepath: str, new_path: str,
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new_size: int, duration_secs: float, settings: dict,
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success: bool, failure_reason: str = None):
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"""Update database after transcode attempt."""
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now = datetime.now().timestamp()
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if success:
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cursor = conn.execute("SELECT original_size FROM files WHERE path = ?", (filepath,))
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row = cursor.fetchone()
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original_size = row[0] if row else 0
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space_saved = original_size - new_size
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compression_ratio = new_size / original_size if original_size > 0 else 0
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conn.execute("""
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UPDATE files SET
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status = 'done',
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transcoded_at = ?,
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transcoded_size = ?,
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transcode_duration_secs = ?,
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transcode_settings = ?,
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space_saved = ?,
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compression_ratio = ?,
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failure_reason = NULL
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WHERE path = ?
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""", (now, new_size, duration_secs, json.dumps(settings),
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space_saved, compression_ratio, filepath))
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# Update running totals
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conn.execute("""
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UPDATE stats SET
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total_files_transcoded = total_files_transcoded + 1,
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total_space_saved = total_space_saved + ?,
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total_transcode_time_secs = total_transcode_time_secs + ?,
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last_updated = ?
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WHERE id = 1
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""", (space_saved, duration_secs, now))
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else:
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conn.execute("""
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UPDATE files SET
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status = 'failed',
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failure_reason = ?
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WHERE path = ?
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""", (failure_reason, filepath))
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conn.commit()
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def remove_from_cache(conn: sqlite3.Connection, filepath: str):
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"""Remove a file from the cache."""
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conn.execute("DELETE FROM files WHERE path = ?", (filepath,))
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conn.commit()
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def get_cache_stats(conn: sqlite3.Connection) -> dict:
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"""Get comprehensive stats from the cache."""
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# File counts and sizes
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cursor = conn.execute("""
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SELECT
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COUNT(*) as total,
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SUM(CASE WHEN is_hevc = 1 THEN 1 ELSE 0 END) as hevc_count,
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SUM(CASE WHEN is_hevc = 0 AND status = 'pending' THEN 1 ELSE 0 END) as pending_count,
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SUM(CASE WHEN status = 'done' THEN 1 ELSE 0 END) as done_count,
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SUM(CASE WHEN status = 'failed' THEN 1 ELSE 0 END) as failed_count,
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SUM(CASE WHEN is_hevc = 1 THEN original_size ELSE 0 END) as hevc_size,
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SUM(CASE WHEN is_hevc = 0 AND status = 'pending' THEN original_size ELSE 0 END) as pending_size
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FROM files
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""")
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row = cursor.fetchone()
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file_stats = {
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"total": row[0] or 0,
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"hevc_count": row[1] or 0,
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"pending_count": row[2] or 0,
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"done_count": row[3] or 0,
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"failed_count": row[4] or 0,
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"hevc_size": row[5] or 0,
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"pending_size": row[6] or 0,
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}
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# Running totals
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cursor = conn.execute("SELECT * FROM stats WHERE id = 1")
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row = cursor.fetchone()
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if row:
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file_stats["total_transcoded"] = row[1] or 0
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file_stats["total_space_saved"] = row[2] or 0
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file_stats["total_transcode_time"] = row[3] or 0
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# By directory breakdown
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cursor = conn.execute("""
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SELECT directory,
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COUNT(*) as count,
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SUM(CASE WHEN is_hevc = 0 AND status = 'pending' THEN original_size ELSE 0 END) as pending_size
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FROM files
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GROUP BY directory
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ORDER BY pending_size DESC
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LIMIT 10
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""")
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file_stats["by_directory"] = cursor.fetchall()
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return file_stats
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# Ensure log directory exists (skip for /var/log which requires root)
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if not CONFIG["log_dir"].startswith("/var/"):
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Path(CONFIG["log_dir"]).mkdir(parents=True, exist_ok=True)
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# Set up logging
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log_level = logging.DEBUG if VERBOSE else logging.INFO
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logging.basicConfig(
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level=log_level,
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format='%(asctime)s [%(levelname)s] %(message)s',
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handlers=[
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logging.FileHandler(CONFIG["log_file"]),
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logging.StreamHandler(sys.stdout)
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]
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)
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log = logging.getLogger(__name__)
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def log_json(event: str, **data):
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"""Write structured JSON log entry (for machine parsing)."""
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if not JSON_LOG:
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return
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entry = {
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"ts": datetime.now().isoformat(),
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"event": event,
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**data
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}
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print(json.dumps(entry), file=sys.stderr)
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def format_bytes(size: int) -> str:
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"""Human-readable byte size."""
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for unit in ['B', 'KB', 'MB', 'GB', 'TB']:
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if abs(size) < 1024.0:
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return f"{size:.2f} {unit}"
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size /= 1024.0
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return f"{size:.2f} PB"
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def format_duration(seconds: float) -> str:
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"""Human-readable duration."""
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if seconds < 60:
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return f"{seconds:.1f}s"
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elif seconds < 3600:
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return f"{seconds/60:.1f}m"
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else:
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return f"{seconds/3600:.1f}h"
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def get_disk_space(path: str) -> dict:
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"""Get disk space info for a path."""
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try:
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stat = os.statvfs(path)
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total = stat.f_blocks * stat.f_frsize
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free = stat.f_bavail * stat.f_frsize
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used = total - free
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return {
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"total": total,
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"free": free,
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"used": used,
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"percent_used": (used / total * 100) if total > 0 else 0
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}
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except Exception as e:
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log.warning(f"Failed to get disk space for {path}: {e}")
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return None
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def check_disk_space():
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"""Log disk space for all source directories."""
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log.info("=" * 50)
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log.info("Disk Space Check")
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log.info("=" * 50)
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checked_mounts = set()
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for source_dir in CONFIG["source_dirs"]:
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# Get mount point to avoid duplicate checks
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try:
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mount = subprocess.run(
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["df", "--output=target", source_dir],
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capture_output=True, text=True
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).stdout.strip().split('\n')[-1]
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except:
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mount = source_dir
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if mount in checked_mounts:
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continue
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checked_mounts.add(mount)
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space = get_disk_space(source_dir)
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if space:
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log.info(f" {mount}:")
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log.info(f" Total: {format_bytes(space['total'])}")
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log.info(f" Free: {format_bytes(space['free'])} ({100-space['percent_used']:.1f}% available)")
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log_json("disk_space", mount=mount, **space)
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if space['percent_used'] > 90:
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log.warning(f" ⚠️ LOW DISK SPACE on {mount}!")
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log.info("")
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def get_video_duration(filepath: str) -> Optional[float]:
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"""Get video duration in seconds using ffprobe."""
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try:
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result = subprocess.run([
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"ffprobe", "-v", "quiet",
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"-show_entries", "format=duration",
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"-of", "json",
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filepath
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], capture_output=True, text=True, timeout=30)
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if result.returncode == 0:
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data = json.loads(result.stdout)
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return float(data.get("format", {}).get("duration", 0))
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except Exception as e:
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log.debug(f"Failed to get duration for {filepath}: {e}")
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return None
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def handle_interrupt(signum, frame):
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"""Handle SIGINT/SIGTERM gracefully."""
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log.warning("=" * 50)
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log.warning("INTERRUPT RECEIVED - cleaning up...")
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log.warning("=" * 50)
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if CURRENT_TRANSCODE["path"]:
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log.warning(f"Interrupted transcode: {CURRENT_TRANSCODE['path']}")
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if CURRENT_TRANSCODE["start_time"]:
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elapsed = (datetime.now() - CURRENT_TRANSCODE["start_time"]).total_seconds()
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log.warning(f"Elapsed time: {format_duration(elapsed)}")
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# Try to kill ffmpeg if running
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if CURRENT_TRANSCODE["pid"]:
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try:
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os.kill(CURRENT_TRANSCODE["pid"], signal.SIGTERM)
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log.info("Sent SIGTERM to ffmpeg process")
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except:
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pass
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# Clean up partial output
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temp_path = Path(CURRENT_TRANSCODE["path"]).with_suffix(".transcoding.mkv")
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if temp_path.exists():
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log.info(f"Removing partial output: {temp_path}")
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temp_path.unlink()
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log_json("interrupted",
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file=CURRENT_TRANSCODE["path"],
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elapsed=elapsed if CURRENT_TRANSCODE["start_time"] else None)
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sys.exit(1)
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# Register signal handlers
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signal.signal(signal.SIGINT, handle_interrupt)
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signal.signal(signal.SIGTERM, handle_interrupt)
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|
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def get_video_codec(filepath: str) -> Optional[str]:
|
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"""Get the video codec of a file using ffprobe."""
|
|
try:
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result = subprocess.run([
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"ffprobe", "-v", "quiet",
|
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"-select_streams", "v:0",
|
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"-show_entries", "stream=codec_name",
|
|
"-of", "json",
|
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filepath
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], capture_output=True, text=True, timeout=30)
|
|
|
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if result.returncode == 0:
|
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data = json.loads(result.stdout)
|
|
streams = data.get("streams", [])
|
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if streams:
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return streams[0].get("codec_name", "").lower()
|
|
except Exception as e:
|
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log.warning(f"Failed to probe {filepath}: {e}")
|
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return None
|
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|
|
|
|
def is_hevc(filepath: str) -> bool:
|
|
"""Check if a file is already HEVC encoded."""
|
|
codec = get_video_codec(filepath)
|
|
return codec in ["hevc", "h265"]
|
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|
|
|
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def get_file_size_gb(filepath: str) -> float:
|
|
"""Get file size in GB."""
|
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return os.path.getsize(filepath) / (1024 ** 3)
|
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|
|
|
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def find_videos_to_transcode(conn: sqlite3.Connection) -> List[Dict]:
|
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"""Find all non-HEVC videos, sorted by size (biggest first). Uses cache for speed."""
|
|
videos = []
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cache_hits = 0
|
|
cache_misses = 0
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|
files_scanned = 0
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dirs_scanned = 0
|
|
|
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scan_start = datetime.now()
|
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log.info("Scanning source directories...")
|
|
|
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for source_dir in CONFIG["source_dirs"]:
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|
if not os.path.exists(source_dir):
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log.warning(f" ⚠ Source directory not found: {source_dir}")
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continue
|
|
|
|
dir_start = datetime.now()
|
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dir_files = 0
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dir_size = 0
|
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log.info(f" 📁 Scanning: {source_dir}")
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|
|
|
for root, dirs, files in os.walk(source_dir):
|
|
# Skip cleanup directory
|
|
if ".cleanup" in root:
|
|
continue
|
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|
|
dirs_scanned += 1
|
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|
|
for filename in files:
|
|
ext = os.path.splitext(filename)[1].lower()
|
|
if ext not in CONFIG["video_extensions"]:
|
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continue
|
|
|
|
filepath = os.path.join(root, filename)
|
|
files_scanned += 1
|
|
dir_files += 1
|
|
|
|
try:
|
|
stat = os.stat(filepath)
|
|
size = stat.st_size
|
|
mtime = stat.st_mtime
|
|
dir_size += size
|
|
|
|
# Check cache first
|
|
cached = get_cached_file(conn, filepath, size, mtime)
|
|
if cached:
|
|
video_codec = cached["video_codec"]
|
|
audio_codec = cached["audio_codec"]
|
|
is_hevc = cached["is_hevc"]
|
|
status = cached["status"]
|
|
cache_hits += 1
|
|
else:
|
|
# Need to probe this file
|
|
log.debug(f" Probing: {filename}")
|
|
video_codec = get_video_codec(filepath)
|
|
audio_codec = get_audio_codec(filepath)
|
|
is_hevc = video_codec in ["hevc", "h265"] if video_codec else False
|
|
status = "done" if is_hevc else "pending"
|
|
cache_file(conn, filepath, size, mtime,
|
|
video_codec or "unknown", audio_codec or "unknown", is_hevc)
|
|
cache_misses += 1
|
|
|
|
videos.append({
|
|
"path": filepath,
|
|
"size": size,
|
|
"size_gb": size / (1024 ** 3),
|
|
"video_codec": video_codec,
|
|
"audio_codec": audio_codec,
|
|
"is_hevc": is_hevc,
|
|
"status": status
|
|
})
|
|
except OSError as e:
|
|
log.warning(f" ⚠ Cannot access {filepath}: {e}")
|
|
|
|
dir_elapsed = (datetime.now() - dir_start).total_seconds()
|
|
log.info(f" Found {dir_files} videos ({format_bytes(dir_size)}) in {format_duration(dir_elapsed)}")
|
|
log_json("scan_directory",
|
|
directory=source_dir,
|
|
files=dir_files,
|
|
size=dir_size,
|
|
elapsed=dir_elapsed)
|
|
|
|
scan_elapsed = (datetime.now() - scan_start).total_seconds()
|
|
cache_rate = (cache_hits / (cache_hits + cache_misses) * 100) if (cache_hits + cache_misses) > 0 else 0
|
|
|
|
log.info("")
|
|
log.info(f"Scan complete in {format_duration(scan_elapsed)}")
|
|
log.info(f" Files scanned: {files_scanned}")
|
|
log.info(f" Dirs traversed: {dirs_scanned}")
|
|
log.info(f" Cache hits: {cache_hits} ({cache_rate:.1f}%)")
|
|
log.info(f" Cache misses: {cache_misses} (probed)")
|
|
log.info("")
|
|
|
|
log_json("scan_complete",
|
|
files=files_scanned,
|
|
dirs=dirs_scanned,
|
|
cache_hits=cache_hits,
|
|
cache_misses=cache_misses,
|
|
elapsed=scan_elapsed)
|
|
|
|
# Sort by size descending (biggest first)
|
|
videos.sort(key=lambda x: x["size"], reverse=True)
|
|
return videos
|
|
|
|
|
|
def is_past_cutoff() -> bool:
|
|
"""Check if we're past the cutoff time for starting new encodes."""
|
|
now = datetime.now().time()
|
|
return now >= CONFIG["cutoff_time"]
|
|
|
|
|
|
def verify_output(filepath: str, min_size_ratio: float = 0.1) -> bool:
|
|
"""Verify the transcoded file is valid."""
|
|
if not os.path.exists(filepath):
|
|
return False
|
|
|
|
# Check file size is reasonable (at least 10% of some minimum)
|
|
size = os.path.getsize(filepath)
|
|
if size < 1024 * 1024: # Less than 1MB is definitely wrong
|
|
return False
|
|
|
|
# Check it's valid video with ffprobe
|
|
codec = get_video_codec(filepath)
|
|
if codec != "hevc":
|
|
return False
|
|
|
|
return True
|
|
|
|
|
|
def transcode_file(input_path: str, conn: sqlite3.Connection) -> Optional[dict]:
|
|
"""Transcode a single file to HEVC. Returns result dict on success."""
|
|
|
|
input_file = Path(input_path)
|
|
output_path = input_file.with_suffix(".transcoding.mkv")
|
|
final_path = input_file.with_suffix(".mkv")
|
|
|
|
original_size = os.path.getsize(input_path)
|
|
video_duration = get_video_duration(input_path)
|
|
|
|
log.info("")
|
|
log.info("=" * 60)
|
|
log.info(f"TRANSCODE START: {input_file.name}")
|
|
log.info("=" * 60)
|
|
log.info(f" Input path: {input_path}")
|
|
log.info(f" Output path: {output_path}")
|
|
log.info(f" Original size: {format_bytes(original_size)}")
|
|
if video_duration:
|
|
log.info(f" Duration: {format_duration(video_duration)}")
|
|
|
|
log_json("transcode_start",
|
|
file=input_path,
|
|
size=original_size,
|
|
duration=video_duration)
|
|
|
|
# Mark as transcoding in DB
|
|
conn.execute("UPDATE files SET status = 'transcoding' WHERE path = ?", (input_path,))
|
|
conn.commit()
|
|
|
|
start_time = datetime.now()
|
|
CURRENT_TRANSCODE["path"] = input_path
|
|
CURRENT_TRANSCODE["start_time"] = start_time
|
|
|
|
settings = {
|
|
"crf": CONFIG["crf"],
|
|
"preset": CONFIG["preset"],
|
|
"audio_codec": CONFIG["audio_codec"],
|
|
"audio_bitrate": CONFIG["audio_bitrate"],
|
|
"threads": CONFIG["threads"]
|
|
}
|
|
|
|
# Build ffmpeg command
|
|
cmd = [
|
|
"ffmpeg", "-y",
|
|
"-threads", str(CONFIG["threads"]),
|
|
"-progress", "pipe:1", # Progress to stdout for parsing
|
|
"-i", input_path,
|
|
"-c:v", "libx265",
|
|
"-preset", CONFIG["preset"],
|
|
"-crf", str(CONFIG["crf"]),
|
|
"-x265-params", f"pools={CONFIG['threads']}",
|
|
"-c:a", CONFIG["audio_codec"],
|
|
"-b:a", CONFIG["audio_bitrate"],
|
|
"-c:s", "srt", # Convert subtitles to SRT (mov_text from MP4 cant copy to MKV)
|
|
str(output_path)
|
|
]
|
|
|
|
# Log the full command for debugging
|
|
cmd_str = ' '.join(f'"{c}"' if ' ' in c else c for c in cmd)
|
|
log.info(f" FFmpeg command:")
|
|
log.debug(f" {cmd_str}")
|
|
if not VERBOSE:
|
|
log.info(f" (use --verbose to see full command)")
|
|
log.info("")
|
|
log_json("ffmpeg_command", command=cmd_str)
|
|
|
|
# Log stderr to file to prevent pipe buffer deadlock
|
|
stderr_log_path = Path(CONFIG["log_dir"]) / "transcoder_ffmpeg_stderr.log"
|
|
stderr_file = open(stderr_log_path, "a")
|
|
stderr_file.write(f"\n{'='*60}\n{datetime.now()} - {input_path}\n{'='*60}\n")
|
|
stderr_file.flush()
|
|
|
|
try:
|
|
# Use Popen for progress monitoring
|
|
# stderr goes to file (not PIPE) to prevent buffer deadlock
|
|
process = subprocess.Popen(
|
|
cmd,
|
|
stdout=subprocess.PIPE,
|
|
stderr=stderr_file,
|
|
text=True
|
|
)
|
|
CURRENT_TRANSCODE["pid"] = process.pid
|
|
log.debug(f" FFmpeg PID: {process.pid}")
|
|
|
|
# Monitor progress
|
|
last_progress_log = datetime.now()
|
|
progress_interval = 60 # Log progress every 60 seconds
|
|
current_time_us = 0
|
|
|
|
import select
|
|
last_output_size = 0
|
|
last_output_growth = datetime.now()
|
|
stall_timeout = 600 # 10 minutes with no output growth = stalled
|
|
|
|
while True:
|
|
# Use select for non-blocking read with timeout
|
|
ready, _, _ = select.select([process.stdout], [], [], 30)
|
|
|
|
if ready:
|
|
line = process.stdout.readline()
|
|
if not line and process.poll() is not None:
|
|
break
|
|
|
|
# Parse progress output
|
|
if line.startswith("out_time_us="):
|
|
try:
|
|
current_time_us = int(line.split("=")[1])
|
|
except:
|
|
pass
|
|
elif process.poll() is not None:
|
|
break
|
|
|
|
# Log progress periodically
|
|
now = datetime.now()
|
|
if (now - last_progress_log).total_seconds() >= progress_interval:
|
|
elapsed = (now - start_time).total_seconds()
|
|
|
|
if video_duration and current_time_us > 0:
|
|
current_secs = current_time_us / 1_000_000
|
|
percent = (current_secs / video_duration) * 100
|
|
eta_secs = (elapsed / percent * 100) - elapsed if percent > 0 else 0
|
|
|
|
log.info(f" ⏳ Progress: {percent:.1f}% | Elapsed: {format_duration(elapsed)} | ETA: {format_duration(eta_secs)}")
|
|
log_json("transcode_progress",
|
|
file=input_path,
|
|
percent=percent,
|
|
elapsed=elapsed,
|
|
eta=eta_secs)
|
|
else:
|
|
log.info(f" ⏳ Elapsed: {format_duration(elapsed)}")
|
|
|
|
# Check output size growth and detect stalls
|
|
if output_path.exists():
|
|
current_size = os.path.getsize(output_path)
|
|
log.info(f" Output size: {format_bytes(current_size)}")
|
|
|
|
if current_size > last_output_size:
|
|
last_output_size = current_size
|
|
last_output_growth = now
|
|
elif (now - last_output_growth).total_seconds() > stall_timeout:
|
|
log.error(f" 🛑 STALL DETECTED: Output file hasn't grown in {stall_timeout}s")
|
|
log.error(f" Output stuck at {format_bytes(current_size)}")
|
|
log.error(f" Killing ffmpeg (PID {process.pid})")
|
|
process.kill()
|
|
process.wait(timeout=30)
|
|
|
|
# Mark as stalled in DB with timestamp for 7-day cooldown
|
|
conn.execute(
|
|
"UPDATE files SET status = 'stalled', failure_reason = ?, transcoded_at = ? WHERE path = ?",
|
|
(f"Output stalled at {format_bytes(current_size)} after {format_duration(elapsed)}",
|
|
datetime.now().timestamp(), input_path)
|
|
)
|
|
conn.commit()
|
|
|
|
# Clean up partial output
|
|
if output_path.exists():
|
|
output_path.unlink()
|
|
log.info(f" Cleaned up partial file: {output_path}")
|
|
|
|
stderr_file.close()
|
|
return None
|
|
|
|
last_progress_log = now
|
|
|
|
# Wait for process to finish (stderr already going to file)
|
|
process.wait(timeout=60)
|
|
stderr_file.close()
|
|
|
|
if process.returncode != 0:
|
|
# Read last 1000 chars of stderr log for error reporting
|
|
try:
|
|
with open(stderr_log_path, 'r') as f:
|
|
f.seek(max(0, os.path.getsize(stderr_log_path) - 1000))
|
|
error_msg = f.read()
|
|
except:
|
|
error_msg = "Unknown error (check transcoder_ffmpeg_stderr.log)"
|
|
log.error("=" * 60)
|
|
log.error("TRANSCODE FAILED")
|
|
log.error("=" * 60)
|
|
log.error(f" File: {input_path}")
|
|
log.error(f" Exit code: {process.returncode}")
|
|
log.error(f" FFmpeg error output:")
|
|
for line in error_msg.split('\n')[-20:]: # Last 20 lines
|
|
if line.strip():
|
|
log.error(f" {line}")
|
|
log.error("=" * 60)
|
|
|
|
log_json("transcode_failed",
|
|
file=input_path,
|
|
exit_code=process.returncode,
|
|
error=error_msg[-500:])
|
|
|
|
if output_path.exists():
|
|
output_path.unlink()
|
|
update_transcode_result(conn, input_path, None, 0, 0, settings, False, error_msg[-500:])
|
|
CURRENT_TRANSCODE["path"] = None
|
|
return None
|
|
|
|
except subprocess.TimeoutExpired:
|
|
log.error("=" * 60)
|
|
log.error(f"TRANSCODE TIMEOUT (8 hours): {input_path}")
|
|
log.error("=" * 60)
|
|
log_json("transcode_timeout", file=input_path)
|
|
process.kill()
|
|
if output_path.exists():
|
|
output_path.unlink()
|
|
update_transcode_result(conn, input_path, None, 0, 0, settings, False, "Timeout (8 hours)")
|
|
CURRENT_TRANSCODE["path"] = None
|
|
return None
|
|
except Exception as e:
|
|
log.error("=" * 60)
|
|
log.error(f"TRANSCODE ERROR: {input_path}")
|
|
log.error("=" * 60)
|
|
log.error(f" Exception: {type(e).__name__}: {e}")
|
|
log.error(f" Traceback:")
|
|
for line in traceback.format_exc().split('\n'):
|
|
if line.strip():
|
|
log.error(f" {line}")
|
|
log.error("=" * 60)
|
|
|
|
log_json("transcode_error",
|
|
file=input_path,
|
|
error=str(e),
|
|
traceback=traceback.format_exc())
|
|
|
|
if output_path.exists():
|
|
output_path.unlink()
|
|
update_transcode_result(conn, input_path, None, 0, 0, settings, False, str(e))
|
|
CURRENT_TRANSCODE["path"] = None
|
|
return None
|
|
|
|
# Verify output
|
|
log.info(" Verifying output file...")
|
|
if not verify_output(str(output_path)):
|
|
log.error("=" * 60)
|
|
log.error("OUTPUT VERIFICATION FAILED")
|
|
log.error("=" * 60)
|
|
log.error(f" File: {output_path}")
|
|
if output_path.exists():
|
|
log.error(f" Output size: {format_bytes(os.path.getsize(output_path))}")
|
|
output_codec = get_video_codec(str(output_path))
|
|
log.error(f" Output codec: {output_codec}")
|
|
else:
|
|
log.error(" Output file does not exist!")
|
|
log.error("=" * 60)
|
|
|
|
log_json("transcode_verify_failed", file=input_path)
|
|
if output_path.exists():
|
|
output_path.unlink()
|
|
update_transcode_result(conn, input_path, None, 0, 0, settings, False, "Output verification failed")
|
|
CURRENT_TRANSCODE["path"] = None
|
|
return None
|
|
|
|
new_size = os.path.getsize(output_path)
|
|
duration_secs = (datetime.now() - start_time).total_seconds()
|
|
space_saved = original_size - new_size
|
|
compression_ratio = new_size / original_size if original_size > 0 else 0
|
|
encode_speed = video_duration / duration_secs if video_duration and duration_secs > 0 else 0
|
|
|
|
log.info("")
|
|
log.info("=" * 60)
|
|
log.info("✅ TRANSCODE COMPLETE")
|
|
log.info("=" * 60)
|
|
log.info(f" File: {input_file.name}")
|
|
log.info(f" Duration: {format_duration(duration_secs)}")
|
|
log.info(f" Original: {format_bytes(original_size)}")
|
|
log.info(f" New size: {format_bytes(new_size)}")
|
|
log.info(f" Saved: {format_bytes(space_saved)} ({100*(1-compression_ratio):.1f}% reduction)")
|
|
log.info(f" Ratio: {compression_ratio:.2f}x")
|
|
if encode_speed > 0:
|
|
log.info(f" Speed: {encode_speed:.2f}x realtime")
|
|
log.info("=" * 60)
|
|
log.info("")
|
|
|
|
log_json("transcode_complete",
|
|
file=input_path,
|
|
original_size=original_size,
|
|
new_size=new_size,
|
|
space_saved=space_saved,
|
|
duration_secs=duration_secs,
|
|
compression_ratio=compression_ratio,
|
|
encode_speed=encode_speed)
|
|
|
|
# Move original to cleanup directory
|
|
cleanup_dir = Path(CONFIG["cleanup_dir"])
|
|
cleanup_dir.mkdir(parents=True, exist_ok=True)
|
|
|
|
timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
|
|
cleanup_name = f"{timestamp}_{input_file.name}"
|
|
cleanup_path = cleanup_dir / cleanup_name
|
|
|
|
log.info(f" Moving original to cleanup: {cleanup_path}")
|
|
try:
|
|
shutil.move(input_path, cleanup_path)
|
|
log.info(f" ✓ Original moved successfully")
|
|
log_json("original_moved", source=input_path, dest=str(cleanup_path))
|
|
except Exception as e:
|
|
log.error(f" ✗ Failed to move original: {e}")
|
|
log.error(f" Traceback: {traceback.format_exc()}")
|
|
# Don't fail the whole operation, but keep both files
|
|
|
|
# Rename output to final name
|
|
log.info(f" Renaming output: {output_path} -> {final_path}")
|
|
try:
|
|
output_path.rename(final_path)
|
|
log.info(f" ✓ Output renamed successfully")
|
|
except Exception as e:
|
|
log.error(f" ✗ Failed to rename output: {e}")
|
|
final_path = output_path
|
|
|
|
# Fix permissions - mediaserver group
|
|
log.debug(" Setting permissions (mediaserver:664)")
|
|
try:
|
|
subprocess.run(["chgrp", "mediaserver", str(final_path)], check=False)
|
|
subprocess.run(["chmod", "664", str(final_path)], check=False)
|
|
log.debug(" ✓ Permissions set")
|
|
except Exception as e:
|
|
log.warning(f" ✗ Failed to set permissions: {e}")
|
|
|
|
# Update database with success
|
|
update_transcode_result(conn, input_path, str(final_path), new_size, duration_secs, settings, True)
|
|
|
|
CURRENT_TRANSCODE["path"] = None
|
|
return {
|
|
"output_path": str(final_path),
|
|
"new_size": new_size,
|
|
"duration_secs": duration_secs,
|
|
"space_saved": space_saved
|
|
}
|
|
|
|
|
|
def cleanup_old_files():
|
|
"""Delete original files older than cleanup_days."""
|
|
cleanup_dir = Path(CONFIG["cleanup_dir"])
|
|
if not cleanup_dir.exists():
|
|
log.debug("Cleanup directory doesn't exist, skipping cleanup")
|
|
return
|
|
|
|
log.info("Checking cleanup directory for old originals...")
|
|
cutoff = datetime.now().timestamp() - (CONFIG["cleanup_days"] * 24 * 3600)
|
|
cutoff_date = datetime.fromtimestamp(cutoff).strftime('%Y-%m-%d %H:%M')
|
|
log.debug(f" Cutoff date: {cutoff_date} ({CONFIG['cleanup_days']} days ago)")
|
|
|
|
deleted_count = 0
|
|
deleted_size = 0
|
|
kept_count = 0
|
|
kept_size = 0
|
|
|
|
for filepath in cleanup_dir.iterdir():
|
|
if filepath.is_file():
|
|
mtime = filepath.stat().st_mtime
|
|
size = filepath.stat().st_size
|
|
|
|
if mtime < cutoff:
|
|
try:
|
|
filepath.unlink()
|
|
deleted_count += 1
|
|
deleted_size += size
|
|
log.info(f" 🗑️ Deleted: {filepath.name} ({format_bytes(size)})")
|
|
log_json("cleanup_deleted", file=str(filepath), size=size)
|
|
except Exception as e:
|
|
log.warning(f" ⚠ Failed to delete {filepath}: {e}")
|
|
else:
|
|
kept_count += 1
|
|
kept_size += size
|
|
days_old = (datetime.now().timestamp() - mtime) / 86400
|
|
log.debug(f" ⏳ Keeping: {filepath.name} ({days_old:.1f} days old)")
|
|
|
|
if deleted_count > 0:
|
|
log.info(f" Cleanup: deleted {deleted_count} files, freed {format_bytes(deleted_size)}")
|
|
log_json("cleanup_complete", deleted=deleted_count, freed=deleted_size)
|
|
else:
|
|
log.info(f" Cleanup: nothing to delete ({kept_count} files still in retention)")
|
|
|
|
if kept_count > 0:
|
|
log.debug(f" Retention: {kept_count} files ({format_bytes(kept_size)}) waiting)")
|
|
|
|
|
|
def main():
|
|
# Initialize database
|
|
conn = init_db()
|
|
|
|
# Handle --stats flag
|
|
if args.stats:
|
|
stats = get_cache_stats(conn)
|
|
print("=" * 60)
|
|
print("Transcoder Statistics")
|
|
print("=" * 60)
|
|
print(f"Total files scanned: {stats['total']}")
|
|
print(f"Already HEVC: {stats['hevc_count']} ({stats['hevc_size']/(1024**3):.2f} GB)")
|
|
print(f"Pending transcode: {stats['pending_count']} ({stats['pending_size']/(1024**3):.2f} GB)")
|
|
print(f"Completed: {stats['done_count']}")
|
|
print(f"Failed: {stats['failed_count']}")
|
|
print("")
|
|
print("--- Lifetime Stats ---")
|
|
print(f"Total transcoded: {stats.get('total_transcoded', 0)} files")
|
|
print(f"Total space saved: {stats.get('total_space_saved', 0)/(1024**3):.2f} GB")
|
|
total_time = stats.get('total_transcode_time', 0)
|
|
print(f"Total transcode time: {total_time/3600:.1f} hours")
|
|
if stats['pending_count'] > 0:
|
|
est_savings = stats['pending_size'] * 0.5
|
|
print(f"\nEstimated remaining: ~{est_savings/(1024**3):.2f} GB savings")
|
|
|
|
if stats.get('by_directory'):
|
|
print("\n--- Top Directories (by pending size) ---")
|
|
for dir_path, count, pending in stats['by_directory'][:5]:
|
|
if pending > 0:
|
|
# Shorten path for display
|
|
short = dir_path.replace("/disks/Plex/", "")
|
|
print(f" {short}: {pending/(1024**3):.2f} GB pending")
|
|
|
|
print("=" * 60)
|
|
conn.close()
|
|
return
|
|
|
|
# Handle --clear-cache flag
|
|
if args.clear_cache:
|
|
conn.execute("DELETE FROM files")
|
|
conn.execute("UPDATE stats SET total_files_transcoded=0, total_space_saved=0, total_transcode_time_secs=0")
|
|
conn.commit()
|
|
print("Cache cleared.")
|
|
conn.close()
|
|
return
|
|
|
|
# Handle --failed flag
|
|
if args.failed:
|
|
cursor = conn.execute("""
|
|
SELECT path, original_size, failure_reason
|
|
FROM files WHERE status = 'failed'
|
|
ORDER BY original_size DESC
|
|
""")
|
|
rows = cursor.fetchall()
|
|
print("=" * 60)
|
|
print(f"Failed Transcodes ({len(rows)} files)")
|
|
print("=" * 60)
|
|
for path, size, reason in rows:
|
|
print(f"\n{path}")
|
|
print(f" Size: {size/(1024**3):.2f} GB")
|
|
print(f" Reason: {reason}")
|
|
if not rows:
|
|
print("No failed transcodes!")
|
|
print("=" * 60)
|
|
conn.close()
|
|
return
|
|
|
|
# Handle --retry-failed flag
|
|
if args.retry_failed:
|
|
cursor = conn.execute("UPDATE files SET status = 'pending', failure_reason = NULL WHERE status = 'failed'")
|
|
count = cursor.rowcount
|
|
conn.commit()
|
|
print(f"Reset {count} failed files to pending.")
|
|
conn.close()
|
|
return
|
|
|
|
session_start = datetime.now()
|
|
|
|
log.info("")
|
|
log.info("=" * 70)
|
|
log.info(" OVERNIGHT VIDEO TRANSCODER")
|
|
log.info("=" * 70)
|
|
log.info(f" Started: {session_start.strftime('%Y-%m-%d %H:%M:%S')}")
|
|
log.info(f" Mode: {'DRY RUN' if DRY_RUN else 'LIVE'}")
|
|
log.info(f" Verbose: {'YES' if VERBOSE else 'NO'}")
|
|
log.info(f" JSON log: {'YES' if JSON_LOG else 'NO'}")
|
|
log.info(f" Cutoff: {CONFIG['cutoff_time']}")
|
|
log.info(f" Settings: CRF={CONFIG['crf']}, preset={CONFIG['preset']}, audio={CONFIG['audio_codec']}@{CONFIG['audio_bitrate']}")
|
|
log.info("=" * 70)
|
|
log.info("")
|
|
|
|
log_json("session_start",
|
|
mode="dry_run" if DRY_RUN else "live",
|
|
config=CONFIG)
|
|
|
|
# Check disk space first
|
|
check_disk_space()
|
|
|
|
# Run cleanup first (skip in dry run)
|
|
if not DRY_RUN:
|
|
cleanup_old_files()
|
|
|
|
# Find videos to transcode
|
|
videos = find_videos_to_transcode(conn)
|
|
|
|
# Filter to non-HEVC pending only (using cached codec info)
|
|
to_transcode = []
|
|
hevc_count = 0
|
|
hevc_size = 0
|
|
|
|
for video in videos:
|
|
if video.get("is_hevc", False) or video.get("status") == "done":
|
|
hevc_count += 1
|
|
hevc_size += video["size"]
|
|
elif video.get("status") == "pending":
|
|
to_transcode.append(video)
|
|
|
|
log.info(f"Already HEVC: {hevc_count} files ({hevc_size / (1024**3):.2f} GB)")
|
|
log.info(f"Need transcoding: {len(to_transcode)} files")
|
|
|
|
if DRY_RUN:
|
|
log.info("")
|
|
log.info("=" * 60)
|
|
log.info("DRY RUN - Files that would be transcoded (biggest first):")
|
|
log.info("=" * 60)
|
|
|
|
total_size = 0
|
|
estimated_savings = 0
|
|
|
|
for i, video in enumerate(to_transcode[:20], 1): # Show top 20
|
|
size_gb = video["size_gb"]
|
|
total_size += video["size"]
|
|
# Estimate ~50% compression for HEVC
|
|
est_saved = video["size"] * 0.5
|
|
estimated_savings += est_saved
|
|
|
|
log.info(f"{i:2}. [{size_gb:6.2f} GB] {video['path']}")
|
|
|
|
if len(to_transcode) > 20:
|
|
log.info(f" ... and {len(to_transcode) - 20} more files")
|
|
|
|
log.info("")
|
|
log.info("=" * 60)
|
|
log.info(f"Total to transcode: {total_size / (1024**3):.2f} GB")
|
|
log.info(f"Estimated savings (~50%): {estimated_savings / (1024**3):.2f} GB")
|
|
log.info("=" * 60)
|
|
return
|
|
|
|
# Normal run
|
|
transcoded_count = 0
|
|
total_saved = 0
|
|
failed_count = 0
|
|
skipped_count = 0
|
|
|
|
log.info("")
|
|
log.info("=" * 60)
|
|
log.info("Starting transcode queue")
|
|
log.info("=" * 60)
|
|
log.info(f" Files to process: {len(to_transcode)}")
|
|
log.info(f" Total size: {format_bytes(sum(v['size'] for v in to_transcode))}")
|
|
log.info("")
|
|
|
|
for i, video in enumerate(to_transcode, 1):
|
|
# Check cutoff time
|
|
if is_past_cutoff():
|
|
remaining = len(to_transcode) - i + 1
|
|
log.info("")
|
|
log.info("=" * 60)
|
|
log.info(f"⏰ CUTOFF TIME REACHED ({CONFIG['cutoff_time']})")
|
|
log.info(f" Stopping with {remaining} files remaining in queue")
|
|
log.info("=" * 60)
|
|
log_json("cutoff_reached", remaining_files=remaining)
|
|
break
|
|
|
|
# Skip already done or failed
|
|
if video.get("status") in ["done", "failed"]:
|
|
log.debug(f" Skipping (status={video['status']}): {video['path']}")
|
|
skipped_count += 1
|
|
continue
|
|
|
|
# Skip stalled files unless 7 days have passed
|
|
if video.get("status") == "stalled":
|
|
row = conn.execute(
|
|
"SELECT transcoded_at FROM files WHERE path = ?", (video['path'],)
|
|
).fetchone()
|
|
if row and row[0]:
|
|
stalled_at = datetime.fromtimestamp(row[0])
|
|
days_since = (datetime.now() - stalled_at).days
|
|
if days_since < 7:
|
|
log.debug(f" Skipping stalled file ({days_since}d ago, retry after 7d): {video['path']}")
|
|
skipped_count += 1
|
|
continue
|
|
else:
|
|
log.info(f" Retrying stalled file ({days_since}d cooldown passed): {video['path']}")
|
|
else:
|
|
log.debug(f" Skipping stalled file (no timestamp): {video['path']}")
|
|
skipped_count += 1
|
|
continue
|
|
|
|
log.info(f"[{i}/{len(to_transcode)}] Queued: {Path(video['path']).name}")
|
|
log.info(f" Size: {format_bytes(video['size'])}")
|
|
log.info(f" Codec: video={video.get('video_codec', 'unknown')}, audio={video.get('audio_codec', 'unknown')}")
|
|
log.info(f" Path: {video['path']}")
|
|
|
|
log_json("transcode_queued",
|
|
index=i,
|
|
total=len(to_transcode),
|
|
file=video['path'],
|
|
size=video['size'],
|
|
video_codec=video.get('video_codec'),
|
|
audio_codec=video.get('audio_codec'))
|
|
|
|
# Transcode
|
|
result = transcode_file(video["path"], conn)
|
|
|
|
if result:
|
|
total_saved += result["space_saved"]
|
|
transcoded_count += 1
|
|
log.info(f" Running totals: {transcoded_count} done, {format_bytes(total_saved)} saved")
|
|
else:
|
|
failed_count += 1
|
|
log.error(f" ❌ Transcode #{i} failed: {video['path']}")
|
|
log.info(f" Running totals: {transcoded_count} done, {failed_count} failed")
|
|
|
|
session_end = datetime.now()
|
|
session_duration = (session_end - session_start).total_seconds()
|
|
|
|
log.info("")
|
|
log.info("=" * 70)
|
|
log.info(" SESSION COMPLETE")
|
|
log.info("=" * 70)
|
|
log.info(f" Started: {session_start.strftime('%Y-%m-%d %H:%M:%S')}")
|
|
log.info(f" Ended: {session_end.strftime('%Y-%m-%d %H:%M:%S')}")
|
|
log.info(f" Duration: {format_duration(session_duration)}")
|
|
log.info(f" Transcoded: {transcoded_count} files")
|
|
log.info(f" Failed: {failed_count} files")
|
|
log.info(f" Skipped: {skipped_count} files")
|
|
log.info(f" Space saved: {format_bytes(total_saved)}")
|
|
|
|
# Get updated lifetime stats
|
|
stats = get_cache_stats(conn)
|
|
log.info("")
|
|
log.info(" --- Lifetime Totals ---")
|
|
log.info(f" Total transcoded: {stats.get('total_transcoded', 0)} files")
|
|
log.info(f" Total saved: {format_bytes(stats.get('total_space_saved', 0))}")
|
|
log.info(f" Pending: {stats.get('pending_count', 0)} files ({format_bytes(stats.get('pending_size', 0))})")
|
|
log.info("=" * 70)
|
|
log.info("")
|
|
|
|
log_json("session_complete",
|
|
started=session_start.isoformat(),
|
|
ended=session_end.isoformat(),
|
|
duration_secs=session_duration,
|
|
transcoded=transcoded_count,
|
|
space_saved=total_saved,
|
|
lifetime_transcoded=stats.get('total_transcoded', 0),
|
|
lifetime_saved=stats.get('total_space_saved', 0),
|
|
pending_count=stats.get('pending_count', 0))
|
|
|
|
conn.close()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|