Adds ffmpeg argument for ensuring default subtitle is set

2019-09-16 11:50:35 +07:00 · 2019-09-16 11:50:35 +07:00 · 0046610ace
parent e1f692f0b3
commit 0046610ace
1 changed files with 2 additions and 0 deletions
--- a/youtube_dl/postprocessor/ffmpeg.py
+++ b/youtube_dl/postprocessor/ffmpeg.py
@ -413,6 +413,8 @@ class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
            # Don't copy Apple TV chapters track, bin_data (see #19042, #19024,
            # https://trac.ffmpeg.org/ticket/6016)
            '-map', '-0:d',
+            # always set a default subtitle (https://trac.ffmpeg.org/ticket/2402)
+            '-disposition:s:0 default',
        ]
        if information['ext'] == 'mp4':
            opts += ['-c:s', 'mov_text']