ffmpeg exited with code 1

[nadermx]

Checklist

• I'm reporting a broken site support issue
• [x ] I've verified that I'm running youtube-dl version 2020.01.01
• 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

youtube-dl -vvv -f 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/bestvideo+bestaudio' --merge-output-format mp4 --external-downloader ffmpeg --external-downloader-args "-movflags frag_keyframe+empty_moov" https://www.youtube.com/watch?v=Mb1ZvUDvLDY -o -
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-vvv', '-f', 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/bestvideo+bestaudio', '--merge-output-format', 'mp4', '--external-downloader', 'ffmpeg', '--external-downloader-args', '-movflags frag_keyframe+empty_moov', 'https://www.youtube.com/watch?v=Mb1ZvUDvLDY', '-o', '-']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2020.01.01
[debug] Python version 3.5.2 (CPython) - Linux-4.15.0-74-generic-x86_64-with-Ubuntu-18.04-bionic
[debug] exe versions: ffmpeg 4.2.1-2, ffprobe 4.2.1-2
[debug] Proxy map: {}
[youtube] Mb1ZvUDvLDY: Downloading webpage
[youtube] Mb1ZvUDvLDY: Downloading video info webpage
[youtube] {18} signature length 110, html5 player vfl7dr5gL
[youtube] {135} signature length 110, html5 player vfl7dr5gL
[youtube] {244} signature length 110, html5 player vfl7dr5gL
[youtube] {397} signature length 110, html5 player vfl7dr5gL
[youtube] {134} signature length 106, html5 player vfl7dr5gL
[youtube] {243} signature length 106, html5 player vfl7dr5gL
[youtube] {396} signature length 110, html5 player vfl7dr5gL
[youtube] {133} signature length 110, html5 player vfl7dr5gL
[youtube] {242} signature length 110, html5 player vfl7dr5gL
[youtube] {395} signature length 110, html5 player vfl7dr5gL
[youtube] {160} signature length 106, html5 player vfl7dr5gL
[youtube] {278} signature length 110, html5 player vfl7dr5gL
[youtube] {394} signature length 110, html5 player vfl7dr5gL
[youtube] {140} signature length 110, html5 player vfl7dr5gL
[youtube] {249} signature length 110, html5 player vfl7dr5gL
[youtube] {250} signature length 110, html5 player vfl7dr5gL
[youtube] {251} signature length 110, html5 player vfl7dr5gL
[debug] Invoking downloader on 'https://r4---sn-qxo7rn7l.googlevideo.com/videoplayback?expire=1578720545&ei=wQgZXu_8IIv3NoquvrgM&ip=2601%3A281%3A204%3Ad710%3A9110%3Ac2e3%3Ac864%3A973f&id=o-AA36L_eLwOtYDC_oVOuLdF6gyW0oXGudfjwbWYH4fpfj&itag=135&aitags=133%2C134%2C135%2C160%2C242%2C243%2C244%2C278%2C394%2C395%2C396%2C397&source=youtube&requiressl=yes&mm=31%2C29&mn=sn-qxo7rn7l%2Csn-qxoedn7z&ms=au%2Crdu&mv=m&mvi=3&pl=26&gcr=us&initcwndbps=2415000&vprv=1&mime=video%2Fmp4&gir=yes&clen=13518136&dur=280.166&lmt=1578510953025904&mt=1578698805&fvip=4&keepalive=yes&fexp=23842630&c=WEB&txp=5532432&sparams=expire%2Cei%2Cip%2Cid%2Caitags%2Csource%2Crequiressl%2Cgcr%2Cvprv%2Cmime%2Cgir%2Cclen%2Cdur%2Clmt&lsparams=mm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AHylml4wRQIgBpg_1IxO8jG-1COErtI3X6L5kurZYytpG0cej1Hb5mUCIQDsDJ9notmWUB2IaviAmbVYWnvOYb0-Wu2Gxv_5Kdxhgg%3D%3D&sig=ALgxI2wwRgIhALqHNnrF2OHZMKer2VytdJb5Q5PCw_cLkJmADNaohaksAiEAtdyzL7XB5NiuAuqNDkYDEdL4XuGVcG3NMgJiYFXKgAY=&ratebypass=yes'
[download] Destination: -.f135
[debug] ffmpeg command line: ffmpeg -y -loglevel verbose -movflags frag_keyframe+empty_moov -headers 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3768.3 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Accept-Encoding: gzip, deflate
Accept-Language: en-us,en;q=0.5
' -i 'https://r4---sn-qxo7rn7l.googlevideo.com/videoplayback?expire=1578720545&ei=wQgZXu_8IIv3NoquvrgM&ip=2601%3A281%3A204%3Ad710%3A9110%3Ac2e3%3Ac864%3A973f&id=o-AA36L_eLwOtYDC_oVOuLdF6gyW0oXGudfjwbWYH4fpfj&itag=135&aitags=133%2C134%2C135%2C160%2C242%2C243%2C244%2C278%2C394%2C395%2C396%2C397&source=youtube&requiressl=yes&mm=31%2C29&mn=sn-qxo7rn7l%2Csn-qxoedn7z&ms=au%2Crdu&mv=m&mvi=3&pl=26&gcr=us&initcwndbps=2415000&vprv=1&mime=video%2Fmp4&gir=yes&clen=13518136&dur=280.166&lmt=1578510953025904&mt=1578698805&fvip=4&keepalive=yes&fexp=23842630&c=WEB&txp=5532432&sparams=expire%2Cei%2Cip%2Cid%2Caitags%2Csource%2Crequiressl%2Cgcr%2Cvprv%2Cmime%2Cgir%2Cclen%2Cdur%2Clmt&lsparams=mm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AHylml4wRQIgBpg_1IxO8jG-1COErtI3X6L5kurZYytpG0cej1Hb5mUCIQDsDJ9notmWUB2IaviAmbVYWnvOYb0-Wu2Gxv_5Kdxhgg%3D%3D&sig=ALgxI2wwRgIhALqHNnrF2OHZMKer2VytdJb5Q5PCw_cLkJmADNaohaksAiEAtdyzL7XB5NiuAuqNDkYDEdL4XuGVcG3NMgJiYFXKgAY=&ratebypass=yes' -c copy -f mp4 file:-.f135.part
ffmpeg version 4.2.1-2~18.04.york2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
  configuration: --prefix=/usr --extra-version='2~18.04.york2' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
[tcp @ 0x555fbf0e78c0] Starting connection attempt to 2607:f8b0:400f:e::a port 443
[tcp @ 0x555fbf0e78c0] Successfully connected to 2607:f8b0:400f:e::a port 443
Option movflags not found.


ERROR: ffmpeg exited with code 1
  File "/home/john/.virtualenvs/youtgo3/bin/youtube-dl", line 8, in <module>
    sys.exit(main())
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/__init__.py", line 474, in main
    _real_main(argv)
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/__init__.py", line 464, in _real_main
    retcode = ydl.download(all_urls)
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 2018, in download
    url, force_generic_extractor=self.params.get('force_generic_extractor', False))
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 807, in extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 862, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 1643, in process_video_result
    self.process_info(new_info)
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 1919, in process_info
    partial_success = dl(fname, new_info)
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 1864, in dl
    return fd.download(name, info)
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/downloader/common.py", line 366, in download
    return self.real_download(filename, info_dict)
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/downloader/external.py", line 64, in real_download
    self.get_basename(), retval))
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/downloader/common.py", line 165, in report_error
    self.ydl.report_error(*args, **kargs)
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 624, in report_error
    self.trouble(error_message, tb)
  File "/home/john/.virtualenvs/youtgo3/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 586, in trouble
    tb_data = traceback.format_list(traceback.extract_stack())

Description

I'm trying to have ffmpeg output a youtube video as a mp4 but via pipe instead of a file. For some reason when I try this command it does not work though. I've tried a few variations of adding in the extra arguments so it can frag it so it can stream it, but to no avail

[dstftw]

You can't merge and pipe at the same time.

[nadermx]

But if I get two urls and input them into ffmpeg, as 2 seperate inputs, it works. This is not possible with youtube-dl?

[sebma]

@nadermx Your ffmpeg output says :
Option movflags not found.

It's because --external-downloader-args seems to be handling ffmpeg INPUT arguments.

-movflags frag_keyframe+empty_moov is a ffmpeg OUTPUT argument.

I also thought --external-downloader-args was handling ffmpeg OUTPUT arguments, which I beleive is more useful than passing ffmpeg INPUT arguments.

[sebma]

@dstftw Can you please update youtube-dl manpage to precise that in the case of ffmpeg, the option --external-downloader-args only handles ffmpeg input arguments. ?

God bless you.

[sebma]

#24638