% yt-dlp https://www.nick.com/episodes/nrr0l8/power-rangers-dino-fury-unexpected-guest-season-11-ep-8 --write-subs --all-subs --sub-format vtt --remux mkv -v
[debug] Command-line config: ['https://www.nick.com/episodes/nrr0l8/power-rangers-dino-fury-unexpected-guest-season-11-ep-8', '--write-subs', '--all-subs', '--sub-format', 'vtt', '--remux', 'mkv', '-v']
[debug] Loading archive file None
[debug] Encodings: locale UTF-8, fs utf-8, out utf-8, pref UTF-8
[debug] yt-dlp version 2021.03.21
[debug] Python version 3.9.1 (CPython 64bit) - macOS-11.2.3-x86_64-i386-64bit
[debug] exe versions: ffmpeg 4.3.2, ffprobe 4.3.2, rtmpdump 2.4
[debug] Proxy map: {}
[debug] Using fake IP 6.4.164.54 (US) as X-Forwarded-For.
[nick.com] power-rangers-dino-fury-unexpected-guest-season-11-ep-8: Downloading webpage
[nick.com] b172528f-971d-11eb-8774-70df2f866ace: Downloading info
[nick.com] a1608d14-0c54-422c-be04-948bf2f736f2: Extracting information
[nick.com] a1608d14-0c54-422c-be04-948bf2f736f2: Downloading video urls
[nick.com] a1608d14-0c54-422c-be04-948bf2f736f2: Downloading m3u8 information
[debug] Sort order given by user:
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id
[debug] Sort order given by user:
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id
[nick.com] e7729c14-674b-4ab0-987e-26ff164b7d7e: Extracting information
[nick.com] e7729c14-674b-4ab0-987e-26ff164b7d7e: Downloading video urls
[nick.com] e7729c14-674b-4ab0-987e-26ff164b7d7e: Downloading m3u8 information
[debug] Sort order given by user:
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id
[debug] Sort order given by user:
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id
[nick.com] 6980add0-5c09-47ce-8dcc-d6ccdc34ba79: Extracting information
[nick.com] 6980add0-5c09-47ce-8dcc-d6ccdc34ba79: Downloading video urls
[nick.com] 6980add0-5c09-47ce-8dcc-d6ccdc34ba79: Downloading m3u8 information
[debug] Sort order given by user:
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id
[debug] Sort order given by user:
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id
[nick.com] c333299c-1f72-459f-af18-e119403e2ede: Extracting information
[nick.com] c333299c-1f72-459f-af18-e119403e2ede: Downloading video urls
[nick.com] c333299c-1f72-459f-af18-e119403e2ede: Downloading m3u8 information
[debug] Sort order given by user:
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id
[debug] Sort order given by user:
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id
[nick.com] 04a8e804-b15a-4baa-afba-05dd1382f313: Extracting information
[nick.com] 04a8e804-b15a-4baa-afba-05dd1382f313: Downloading video urls
[nick.com] 04a8e804-b15a-4baa-afba-05dd1382f313: Downloading m3u8 information
[debug] Sort order given by user:
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id
[debug] Sort order given by user:
[debug] Formats sorted by: hasvid, ie_pref, lang, quality, res, fps, vcodec:vp9.2(10), acodec, filesize, fs_approx, tbr, vbr, abr, asr, proto, vext, aext, hasaud, source, id
[download] Downloading playlist: Unexpected Guest
[nick.com] playlist Unexpected Guest: Collected 5 video ids (downloading 5 of them)
[download] Downloading video 1 of 5
[debug] Default format spec: bestvideo*+bestaudio/best
[info] Downloading format(s) hls-5351
[info] Writing video subtitles to: Power Rangers Dino Fury - 'Unexpected Guest' S1 [a1608d14-0c54-422c-be04-948bf2f736f2].en.vtt
[debug] Invoking downloader on 'http://vs-tools.mtvnservices.com/caption/convert?mgid=mgid:file:gsp:alias:/mediabus/kids.com/2021/04/15/12/26/47/914c1f15a28b4c679df9b8503693b088/2488150/uDsYocGbcl_HDXPR1108A1_2488150_10182102.dfxp.xml&accountName=nick.com'
[download] Power Rangers Dino Fury - 'Unexpected Guest' S1 [a1608d14-0c54-422c-be04-948bf2f736f2].en.vtt has already been downloaded
[download] 100% of 944.00B
[download] Power Rangers Dino Fury - 'Unexpected Guest' S1 [a1608d14-0c54-422c-be04-948bf2f736f2].mkv has already been downloaded
[debug] ffmpeg command line: ffprobe -show_streams 'file:Power Rangers Dino Fury - '"'"'Unexpected Guest'"'"' S1 [a1608d14-0c54-422c-be04-948bf2f736f2].mkv'
[FixupM3u8] Fixing malformed AAC bitstream in "Power Rangers Dino Fury - 'Unexpected Guest' S1 [a1608d14-0c54-422c-be04-948bf2f736f2].mkv"
[debug] ffmpeg command line: ffmpeg -y -loglevel repeat+info -i 'file:Power Rangers Dino Fury - '"'"'Unexpected Guest'"'"' S1 [a1608d14-0c54-422c-be04-948bf2f736f2].mkv' -c copy -map 0 -dn -f mp4 -bsf:a aac_adtstoasc 'file:Power Rangers Dino Fury - '"'"'Unexpected Guest'"'"' S1 [a1608d14-0c54-422c-be04-948bf2f736f2].temp.mkv'
ERROR: ffmpeg version 4.3.2 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.0 (clang-1200.0.32.28)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.2-with-options_1 --enable-shared --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libaom --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-demuxer=dash --disable-libjack --disable-indev=jack --enable-opencl --enable-videotoolbox --disable-htmlpages --enable-chromaprint --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfdk-aac --enable-libgme --enable-libgsm --enable-libmodplug --enable-libopenh264 --enable-libopenjpeg --enable-librav1e --enable-librsvg --enable-librtmp --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtesseract --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libwavpack --enable-libwebp --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-openssl --enable-nonfree --enable-decklink --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/include --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Input #0, matroska,webm, from 'file:Power Rangers Dino Fury - 'Unexpected Guest' S1 [a1608d14-0c54-422c-be04-948bf2f736f2].mkv':
  Metadata:
    COMPATIBLE_BRANDS: isomiso2avc1mp41
    MAJOR_BRAND     : isom
    MINOR_VERSION   : 512
    ENCODER         : Lavf58.45.100
  Duration: 00:00:30.03, start: 0.000000, bitrate: 5167 kb/s
    Stream #0:0: Audio: aac (LC), 48000 Hz, stereo, fltp (default)
    Metadata:
      HANDLER_NAME    : SoundHandler
      DURATION        : 00:00:29.930000000
    Stream #0:1: Video: h264 (High), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    Metadata:
      HANDLER_NAME    : VideoHandler
      DURATION        : 00:00:30.030000000
    Stream #0:2(eng): Subtitle: subrip (default)
    Metadata:
      DURATION        : 00:00:28.297000000
[mp4 @ 0x7fec37046200] Could not find tag for codec subrip in stream #2, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
  Stream #0:2 -> #0:2 (copy)
  File "/Users/krsentai/.pyenv/versions/3.9.1/bin/yt-dlp", line 8, in <module>
    sys.exit(main())
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/__init__.py", line 616, in main
    _real_main(argv)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/__init__.py", line 606, in _real_main
    retcode = ydl.download(all_urls)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 2502, in download
    res = self.extract_info(
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 1018, in extract_info
    return self.__extract_info(url, ie, download, extra_info, process, info_dict)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 1025, in wrapper
    return func(self, *args, **kwargs)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 1062, in __extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 1146, in process_ie_result
    return self.__process_playlist(ie_result, download)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 1323, in __process_playlist
    entry_result = self.__process_iterable_entry(entry, download, extra)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 1025, in wrapper
    return func(self, *args, **kwargs)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 1332, in __process_iterable_entry
    return self.process_ie_result(
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 1094, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 1967, in process_video_result
    self.process_info(new_info)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 2472, in process_info
    info_dict = self.post_process(dl_filename, info_dict, files_to_move)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 2607, in post_process
    info = self.run_pp(pp, info)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 2558, in run_pp
    files_to_delete, infodict = pp.run(infodict)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/postprocessor/ffmpeg.py", line 700, in run
    self.run_ffmpeg(filename, temp_filename, options)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/postprocessor/ffmpeg.py", line 280, in run_ffmpeg
    return self.run_ffmpeg_multiple_files([path], out_path, opts)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/postprocessor/ffmpeg.py", line 237, in run_ffmpeg_multiple_files
    return self.real_run_ffmpeg(
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/postprocessor/ffmpeg.py", line 273, in real_run_ffmpeg
    self.report_error(stderr)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/postprocessor/common.py", line 55, in report_error
    return self._downloader.report_error(text, *args, **kwargs)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 744, in report_error
    self.trouble(error_message, tb)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 706, in trouble
    tb_data = traceback.format_list(traceback.extract_stack())

ERROR: Postprocessing:   Stream #0:2 -> #0:2 (copy)
Traceback (most recent call last):
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 2472, in process_info
    info_dict = self.post_process(dl_filename, info_dict, files_to_move)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 2607, in post_process
    info = self.run_pp(pp, info)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/YoutubeDL.py", line 2558, in run_pp
    files_to_delete, infodict = pp.run(infodict)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/postprocessor/ffmpeg.py", line 700, in run
    self.run_ffmpeg(filename, temp_filename, options)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/postprocessor/ffmpeg.py", line 280, in run_ffmpeg
    return self.run_ffmpeg_multiple_files([path], out_path, opts)
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/postprocessor/ffmpeg.py", line 237, in run_ffmpeg_multiple_files
    return self.real_run_ffmpeg(
  File "/Users/krsentai/.pyenv/versions/3.9.1/lib/python3.9/site-packages/yt_dlp/postprocessor/ffmpeg.py", line 274, in real_run_ffmpeg
    raise FFmpegPostProcessorError(stderr.split('\n')[-1])
yt_dlp.postprocessor.ffmpeg.FFmpegPostProcessorError:   Stream #0:2 -> #0:2 (copy)