input_files = [filename] + sub_filenames
opts = [
- '-map', '0:v',
- '-c:v', 'copy',
- '-map', '0:a',
- '-c:a', 'copy',
+ '-map', '0',
+ '-c', 'copy',
# Don't copy the existing subtitles, we may be running the
# postprocessor a second time
'-map', '-0:s',