The following options are used by the post processors:
prefer_ffmpeg: If True, use ffmpeg instead of avconv if both are available,
otherwise prefer avconv.
- exec_cmd: Arbitrary command to run after downloading
"""
params = None
req_format = self.params.get('format')
if req_format is None:
req_format_list = []
- if info_dict['extractor'] in ['youtube', 'ted'] and FFmpegMergerPP(self).available:
+ if (self.params.get('outtmpl', DEFAULT_OUTTMPL) != '-' and
+ info_dict['extractor'] in ['youtube', 'ted'] and
+ FFmpegMergerPP(self).available):
req_format_list.append('bestvideo+bestaudio')
req_format_list.append('best')
req_format = '/'.join(req_format_list)