Add reorder_depth setter

av/video/codeccontext.py

@@ -278,6 +278,20 @@ def has_b_frames(self):
         """
         return bool(self.ptr.has_b_frames)
 
+    @property
+    def reorder_depth(self):
+        """Raw ``has_b_frames`` value from FFmpeg (int, not bool).
+
+        After :meth:`flush_buffers`, FFmpeg may reset the internal reorder
+        heuristic. Set this to the known reorder depth *after* seeking to
+        avoid dropped hierarchical B-frames.
+        """
+        return self.ptr.has_b_frames
+
+    @reorder_depth.setter
+    def reorder_depth(self, value: cython.int):
+        self.ptr.has_b_frames = value
+
     @property
     def coded_width(self):
         """

av/video/codeccontext.pyi

@@ -19,6 +19,7 @@ class VideoCodecContext(CodecContext):
     sample_aspect_ratio: Fraction | None
     display_aspect_ratio: Fraction | None
     has_b_frames: bool
+    reorder_depth: int
     max_b_frames: int
     coded_width: int
     coded_height: int