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-rw-r--r--youtube_dl/postprocessor/ffmpeg.py8
1 files changed, 7 insertions, 1 deletions
diff --git a/youtube_dl/postprocessor/ffmpeg.py b/youtube_dl/postprocessor/ffmpeg.py
index 26b99e43c..a75277778 100644
--- a/youtube_dl/postprocessor/ffmpeg.py
+++ b/youtube_dl/postprocessor/ffmpeg.py
@@ -475,7 +475,13 @@ class FFmpegEmbedSubtitlePP(FFmpegPostProcessor):
filename = information['filepath']
input_files = [filename] + [subtitles_filename(filename, lang, self._subformat) for lang in sub_langs]
- opts = ['-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'copy']
+ opts = [
+ '-map', '0',
+ '-c', 'copy',
+ # Don't copy the existing subtitles, we may be running the
+ # postprocessor a second time
+ '-map', '-0:s',
+ ]
for (i, lang) in enumerate(sub_langs):
opts.extend(['-map', '%d:0' % (i + 1), '-c:s:%d' % i, 'mov_text'])
lang_code = self._conver_lang_code(lang)