Initial commit: auto-video-cut project

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

auto_video_cut/config.py

@@ -0,0 +1,115 @@
+"""Konfiguration laden und validieren."""
+
+from __future__ import annotations
+
+import os
+from pathlib import Path
+from typing import Any
+
+import yaml
+
+MUSIC_EXTENSIONS = {".mp3", ".wav", ".flac", ".aac", ".ogg"}
+VIDEO_EXTENSIONS = {".mp4", ".mov", ".avi", ".mkv"}
+IMAGE_EXTENSIONS = {".png", ".jpg", ".jpeg"}
+
+DEFAULTS: dict[str, Any] = {
+    "resources": {
+        "folder": "./resources",
+    },
+    "music": {
+        "mode": "random",
+        "volume_original": 1.0,
+        "volume_music": 0.3,
+    },
+    "videos": {
+        "intro": None,
+        "outro": None,
+        "transitions": False,
+    },
+    "images": {
+        "title_card": None,
+        "duration": 3,
+    },
+    "silence": {
+        "threshold_db": -40,
+        "min_duration": 0.5,
+    },
+    "scenes": {
+        "threshold": 27.0,
+    },
+    "output": {
+        "format": "mp4",
+        "folder": "./output",
+    },
+}
+
+
+def _deep_merge(base: dict, override: dict) -> dict:
+    """Rekursiv Dictionaries zusammenführen."""
+    result = dict(base)
+    for key, value in override.items():
+        if key in result and isinstance(result[key], dict) and isinstance(value, dict):
+            result[key] = _deep_merge(result[key], value)
+        else:
+            result[key] = value
+    return result
+
+
+def load_config(config_path: str | Path | None = None) -> dict[str, Any]:
+    """YAML-Konfiguration laden und mit Standardwerten zusammenführen."""
+    config = dict(DEFAULTS)
+    if config_path is None:
+        return config
+
+    path = Path(config_path)
+    if not path.exists():
+        raise FileNotFoundError(f"Konfigurationsdatei nicht gefunden: {path}")
+
+    with open(path, encoding="utf-8") as fh:
+        user_config = yaml.safe_load(fh) or {}
+
+    return _deep_merge(config, user_config)
+
+
+def validate_config(config: dict[str, Any]) -> list[str]:
+    """Konfiguration prüfen, Warnungen zurückgeben."""
+    warnings: list[str] = []
+
+    resources_folder = Path(config["resources"]["folder"])
+    if not resources_folder.exists():
+        warnings.append(f"Ressourcen-Ordner existiert nicht: {resources_folder}")
+    else:
+        music_folder = resources_folder / "music"
+        if not music_folder.exists():
+            warnings.append(f"Musik-Ordner existiert nicht: {music_folder}")
+        else:
+            music_files = [
+                f for f in music_folder.iterdir()
+                if f.suffix.lower() in MUSIC_EXTENSIONS
+            ]
+            if not music_files:
+                warnings.append(f"Keine Musikdateien in: {music_folder}")
+
+    vol_orig = config["music"]["volume_original"]
+    vol_music = config["music"]["volume_music"]
+    if not (0.0 <= vol_orig <= 1.0):
+        warnings.append(f"volume_original muss zwischen 0.0 und 1.0 liegen (ist: {vol_orig})")
+    if not (0.0 <= vol_music <= 1.0):
+        warnings.append(f"volume_music muss zwischen 0.0 und 1.0 liegen (ist: {vol_music})")
+
+    return warnings
+
+
+def get_resources_folder(config: dict[str, Any]) -> Path:
+    return Path(config["resources"]["folder"])
+
+
+def get_music_files(config: dict[str, Any]) -> list[Path]:
+    """Alle Musikdateien aus dem konfigurierten Ordner zurückgeben."""
+    music_folder = get_resources_folder(config) / "music"
+    if not music_folder.exists():
+        return []
+    return sorted(
+        f for f in music_folder.iterdir()
+        if f.suffix.lower() in MUSIC_EXTENSIONS
+    )