[postprocessor/embedthumbnail] Allow mkv to embed thumbnails

Fixes #6046
8 years ago · 7360db05b4
1 changed files with 1 additions and 1 deletions
--- a/youtube_dl/postprocessor/embedthumbnail.py
+++ b/youtube_dl/postprocessor/embedthumbnail.py
@ -40,7 +40,7 @@ class EmbedThumbnailPP(FFmpegPostProcessor):
                'Skipping embedding the thumbnail because the file is missing.')
            return [], info

-        if info['ext'] == 'mp3':
+        if info['ext'] in ('mp3', 'mkv'):
            options = [
                '-c', 'copy', '-map', '0', '-map', '1',
                '-metadata:s:v', 'title="Album cover"', '-metadata:s:v', 'comment="Cover (Front)"']