Repaired a lot of Media Management

set_1_ger

@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+import sys
+import pathlib
+import subprocess
+from check_video import check_video_ext, normalize_language, normalize_lang_code
+
+def collect_files(paths):
+    files = []
+    for p in paths:
+        p = pathlib.Path(p)
+        if p.is_dir():
+            files += [f for f in p.iterdir() if check_video_ext(f.suffix)]
+        elif check_video_ext(p.suffix):
+            files.append(p)
+    return files
+
+def set_audio_lang(file_path, lang_code):
+    """
+    Sets the first audio track language to the given ISO 639-1 code using mkvpropedit.
+    """
+    try:
+        # Target first audio track (track ID 1)
+        subprocess.run([
+            "mkvpropedit", str(file_path),
+            "--edit", "track:a1",
+            "--set", f"language={lang_code}"
+        ], check=True)
+        print(f"Set first audio track of '{file_path}' to {lang_code}")
+    except subprocess.CalledProcessError as e:
+        print(f"Failed to set language for '{file_path}': {e}")
+
+def main():
+    if len(sys.argv) == 1:
+        targets = ["."]
+        lang = "German"
+    else:
+        targets = sys.argv[1:]
+        lang = "German"  # Hardcoded to German
+
+    lang = normalize_language(lang)
+    lang_code = normalize_lang_code(lang)
+
+    for f in collect_files(targets):
+        set_audio_lang(f, lang_code)
+
+if __name__ == "__main__":
+    main()