youtube-dl pass external-downloader-args to the wrong external-downloader

[magicalz]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2019.07.02
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

root@20190616-2:~/stream-recorder# youtube-dl -v -o "/root/aria2download/%(title)s.%(ext)s" --external-downloader aria2c --external-downloader-args "-c -j 6 -x 6 -s 6 -k 1M" -f best https://www.youtube.com/watch?v=B6NbCs5pt20
[debug] System config: []
[debug] User config: ['--external-downloader', 'aria2c']
[debug] Custom config: []
[debug] Command-line args: ['-v', '-o', '/root/aria2download/%(title)s.%(ext)s', '--external-downloader', 'aria2c', '--external-downloader-args', '-c -j 6 -x 6 -s 6 -k 1M', '-f', 'best', 'https://www.youtube.com/watch?v=B6NbCs5pt20']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.07.02
[debug] Python version 3.7.3 (CPython) - Linux-4.12.9-041209-generic-x86_64-with-debian-8.11
[debug] exe versions: ffmpeg 4.1.3-static, ffprobe 4.1.3-static
[debug] Proxy map: {}
[youtube] B6NbCs5pt20: Downloading webpage
[youtube] B6NbCs5pt20: Downloading video info webpage
[youtube] B6NbCs5pt20: Downloading m3u8 information
[youtube] B6NbCs5pt20: Downloading MPD manifest
[debug] Invoking downloader on 'https://manifest.googlevideo.com/api/manifest/hls_playlist/expire/1562278657/ei/oCYeXZPgOYmRhgacvrPoDg/ip/2001:19f0:5:2bb9:5400:2ff:fe20:2ad2/id/B6NbCs5pt20.0/itag/301/source/yt_live_broadcast/requiressl/yes/ratebypass/yes/live/1/goi/160/sgoap/gir%3Dyes%3Bitag%3D140/sgovp/gir%3Dyes%3Bitag%3D299/hls_chunk_host/r5---sn-ab5l6n6l.googlevideo.com/force_finished/1/playlist_type/CLEAN/mm/44/mn/sn-ab5l6n6l/ms/lva/mv/u/mvi/4/pl/52/dover/11/keepalive/yes/mt/1562256817/disable_polymer/true/sparams/expire,ei,ip,id,itag,source,requiressl,ratebypass,live,goi,sgoap,sgovp,force_finished,playlist_type/sig/ALgxI2wwRQIgcuX3_Bn6D2faPwMqIgzzg3XafFiKc3lZMk8NRWhaLPICIQCca-6-qtrNYDjSn27LEL2cZiEyzygnbqwfwu9urZgZyA%3D%3D/lsparams/hls_chunk_host,mm,mn,ms,mv,mvi,pl/lsig/AHylml4wRQIhAOAiccn0fh_LXmcnyUsQ9jJ60snU7NXla6OkN3oul5Q4AiAJgns2ybjSZ9tnqm4NyeN2K248af1RgcYGjJ1DIObZEg%3D%3D/playlist/index.m3u8'
[download] Destination: /root/aria2download/【Minecraft】のんびりクラフトだぞぉ～【#百鬼あやめ_ホロライブ】.mp4
[debug] ffmpeg command line: ffmpeg -y -loglevel verbose -c -j 6 -x 6 -s 6 -k 1M -headers 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3749.2 Safari/537.36
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
' -i https://manifest.googlevideo.com/api/manifest/hls_playlist/expire/1562278657/ei/oCYeXZPgOYmRhgacvrPoDg/ip/2001:19f0:5:2bb9:5400:2ff:fe20:2ad2/id/B6NbCs5pt20.0/itag/301/source/yt_live_broadcast/requiressl/yes/ratebypass/yes/live/1/goi/160/sgoap/gir%3Dyes%3Bitag%3D140/sgovp/gir%3Dyes%3Bitag%3D299/hls_chunk_host/r5---sn-ab5l6n6l.googlevideo.com/force_finished/1/playlist_type/CLEAN/mm/44/mn/sn-ab5l6n6l/ms/lva/mv/u/mvi/4/pl/52/dover/11/keepalive/yes/mt/1562256817/disable_polymer/true/sparams/expire,ei,ip,id,itag,source,requiressl,ratebypass,live,goi,sgoap,sgovp,force_finished,playlist_type/sig/ALgxI2wwRQIgcuX3_Bn6D2faPwMqIgzzg3XafFiKc3lZMk8NRWhaLPICIQCca-6-qtrNYDjSn27LEL2cZiEyzygnbqwfwu9urZgZyA%3D%3D/lsparams/hls_chunk_host,mm,mn,ms,mv,mvi,pl/lsig/AHylml4wRQIhAOAiccn0fh_LXmcnyUsQ9jJ60snU7NXla6OkN3oul5Q4AiAJgns2ybjSZ9tnqm4NyeN2K248af1RgcYGjJ1DIObZEg%3D%3D/playlist/index.m3u8 -c copy -f mp4 -bsf:a aac_adtstoasc 'file:/root/aria2download/【Minecraft】のんびりクラフトだぞぉ～【#百鬼あやめ_ホロライブ】.mp4.part'
ffmpeg version 4.1.3-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzvbi --enable-libzimg
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Unrecognized option 'k'.
Error splitting the argument list: Option not found


ERROR: ffmpeg exited with code 1
  File "/usr/local/python3.7/bin/youtube-dl", line 10, in <module>
    sys.exit(main())
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/__init__.py", line 474, in main
    _real_main(argv)
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/__init__.py", line 464, in _real_main
    retcode = ydl.download(all_urls)
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/YoutubeDL.py", line 2008, in download
    url, force_generic_extractor=self.params.get('force_generic_extractor', False))
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/YoutubeDL.py", line 807, in extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/YoutubeDL.py", line 861, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/YoutubeDL.py", line 1642, in process_video_result
    self.process_info(new_info)
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/YoutubeDL.py", line 1915, in process_info
    success = dl(filename, info_dict)
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/YoutubeDL.py", line 1854, in dl
    return fd.download(name, info)
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/downloader/common.py", line 366, in download
    return self.real_download(filename, info_dict)
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/downloader/external.py", line 64, in real_download
    self.get_basename(), retval))
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/downloader/common.py", line 165, in report_error
    self.ydl.report_error(*args, **kargs)
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/YoutubeDL.py", line 624, in report_error
    self.trouble(error_message, tb)
  File "/usr/local/python3.7/lib/python3.7/site-packages/youtube_dl/YoutubeDL.py", line 586, in trouble
    tb_data = traceback.format_list(traceback.extract_stack())

Description

WRITE DESCRIPTION HERE

I try to use youtube-dl with aria2 to download youtube video, but for some of the videos, youtube-dl will ignore aria2 and use ffmpeg instead, also pass the aria2 args to ffmpeg which cause an exception.

[magicalz]

Can you tell me which issue is it duplicate from? I try to search the similar issue before I commit this one but found nothing.

[maxnordlund]

I think I found the duplicate, #10784, but only @dstftw can confirm that one is it?