feat: minor chanes to highlight

video_editor/highlight.py

@@ -78,10 +78,20 @@ class VideoHighlighter:
         df["start"] = df["start"].apply(self._to_seconds)
         df["end"] = df["end"].apply(self._to_seconds)
 
+        # Добавить проверку валидности
+        invalid = df[df["start"] >= df["end"]]
+        if not invalid.empty:
+            raise ValueError("Найдены некорректные интервалы: start >= end")
+
         raw = list(df.sort_values("start")[
                    ["start", "end"]].itertuples(index=False, name=None))
         merged = self._merge_intervals(raw)
-        return self._add_padding(merged, total_dur=self._get_duration())
+
+        # Получить длительность один раз
+        with VideoFileClip(str(self.video)) as v:
+            total_dur = v.duration
+
+        return self._add_padding(merged, total_dur=total_dur)
 
     def _merge_intervals(self, intervals: List[Tuple[float, float]]) -> List[Tuple[float, float]]:
         if not intervals:
@@ -111,7 +121,8 @@ class VideoHighlighter:
                 fname = self.out_dir / f"clip_{idx:02d}.mp4"
                 self._save_clip(clip, fname)
                 clip.close()
-            clips.append(clip)
+            else:
+                clips.append(clip)  # Добавляем только если concat=True
         return clips
 
     def _save_clip(self, clip: VideoFileClip, fname: Path) -> None: