j

tool/ytdlp.py

@@ -671,6 +671,29 @@ class YtDlpTool:
             pass
         return None
 
+    def resolve_height_selector(self, format_str: Optional[str]) -> Optional[str]:
+        """Resolve numeric heights (720, 1080p) to yt-dlp height selectors.
+        
+        Examples:
+          "720" -> "bv*[height<=720]+ba"
+          "1080p" -> "bv*[height<=1080]+ba"
+        """
+        if not format_str or not isinstance(format_str, str):
+            return None
+        
+        s = format_str.strip().lower()
+        if not s:
+            return None
+            
+        # Strip trailing 'p' if present (e.g. 720p -> 720)
+        if s.endswith('p'):
+            s = s[:-1]
+        if s.isdigit():
+            height = int(s)
+            if height >= 144:
+                return f"bv*[height<={height}]+ba"
+        return None
+
     def _load_defaults(self) -> YtDlpDefaults:
         cfg = self._config
 
@@ -787,7 +810,13 @@ class YtDlpTool:
         if opts.no_playlist:
             base_options["noplaylist"] = True
 
-        fmt = opts.ytdl_format or self.default_format(opts.mode)
+        ytdl_format = opts.ytdl_format
+        if ytdl_format and opts.mode != "audio":
+            resolved = self.resolve_height_selector(ytdl_format)
+            if resolved:
+                ytdl_format = resolved
+
+        fmt = ytdl_format or self.default_format(opts.mode)
         base_options["format"] = fmt
 
         if opts.mode == "audio":