[EmbedSubtitle] Enable for more video extensions

[yt-dlp.git] / yt_dlp / postprocessor / ffmpeg.py

diff --git a/yt_dlp/postprocessor/ffmpeg.py b/yt_dlp/postprocessor/ffmpeg.py
index 69182618bba81d241dc22db8f829a0c5f5d04b8a..4b61693a206cd1a7001599da4459248010f08845 100644 (file)
--- a/yt_dlp/postprocessor/ffmpeg.py
+++ b/yt_dlp/postprocessor/ffmpeg.py
@@ -577,14 +577,16 @@ def _options(target_ext):
 
 
 class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
+    SUPPORTED_EXTS = ('mp4', 'mov', 'm4a', 'webm', 'mkv', 'mka')
+
     def __init__(self, downloader=None, already_have_subtitle=False):
         super().__init__(downloader)
         self._already_have_subtitle = already_have_subtitle
 
     @PostProcessor._restrict_to(images=False)
     def run(self, info):
-        if info['ext'] not in ('mp4', 'webm', 'mkv'):
-            self.to_screen('Subtitles can only be embedded in mp4, webm or mkv files')
+        if info['ext'] not in self.SUPPORTED_EXTS:
+            self.to_screen(f'Subtitles can only be embedded in {", ".join(self.SUPPORTED_EXTS)} files')
             return [], info
         subtitles = info.get('requested_subtitles')
         if not subtitles: