use video FPS if subtitle has no FPS defined

Diaoul · Feb 14, 2025 · 51b4de0 · 51b4de0
1 parent cfd7782
commit 51b4de0
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/subliminal/core.py b/src/subliminal/core.py
@@ -833,7 +833,9 @@ def save_subtitles(
 
         # convert subtitle to a new format
         if subtitle_format:
-            subtitle.convert(subtitle_format, output_encoding=encoding)
+            # Use the video FPS if the FPS of the subtitle is not defined
+            fps = video.frame_rate if subtitle.fps is None else None
+            subtitle.convert(subtitle_format, output_encoding=encoding, fps=fps)
 
         # create subtitle path
         subtitle_path = subtitle.get_path(