Youtube-dl spams the console with errors when downloading a Twitch VoD

[mateon1]

When downloading a Twitch vod, http://www.twitch.tv/andy/v/4218137, the console is spammed with errors "Error parsing ADTS frame header!" and "Failed to open bitstream filter aac_adtstoasc for stream 0 with codec copy: Operation not permitted".

I generated output by running cmd < in.txt 1>out.txt 2>&1, where in.txt is py -2 -m youtube_dl http://www.twitch.tv/andy/v/4218137 --verbose -f best.

The full output is 14MB in size, however zipped it is 17kB: http://puu.sh/hzUQF/9e5f0d486d.zip

This is the beginning of the output with the debug info:

D:\V\C>py -2 -m youtube_dl http://www.twitch.tv/andy/v/4218137 --verbose -f best
[debug] System config: []
[debug] User config: ['--write-info-json', '--write-all-thumbnails', '--all-subs', '-o', 'D:\\V\\%(extractor)s\\%(uploader)s\\%(upload_date)s %(title)s - %(id)s\\[%(format)s].%(ext)s', '-f', 'best,bestvideo[ext!=webm]+bestaudio', '--no-post-overwrite']
[debug] Command-line args: [u'http://www.twitch.tv/andy/v/4218137', u'--verbose', u'-f', u'best']
WARNING: Parameter outtmpl is bytes, but should be a unicode string. Put  from __future__ import unicode_literals  at the top of your code file or consider switching to Python 3.x.
[debug] Encodings: locale cp1250, fs mbcs, out None, pref cp1250
[debug] youtube-dl version 2015.04.09
[debug] Python version 2.7.5 - Windows-7-6.1.7601-SP1
[debug] exe versions: ffmpeg N-50911-g9efcfbe
[debug] Proxy map: {}
[twitch:vod] 4218137: Downloading vod info JSON
[twitch:vod] 4218137: Downloading vod access token
[twitch:vod] 4218137: Downloading m3u8 information
[info] Writing video description metadata as JSON to: D:\V\twitch -vod\Andy\20150421 Ori and the Blind Forest _ Any% Speedrun _ 37_24 - v4218137\[Source - unknown].info.json
[twitch:vod] v4218137: Downloading thumbnail ...
[twitch:vod] v4218137: Writing thumbnail to: D:\V\twitch -vod\Andy\20150421 Ori and the Blind Forest _ Any% Speedrun _ 37_24 - v4218137\[Source - unknown].jpg
[debug] Invoking downloader on u'http://vod.ak.hls.ttvnw.net/v1/AUTH_system/vods_01ec/andy_14095574032_233944361/chunked/highlight-4218137.m3u8'
[download] Destination: D:\V\twitch -vod\Andy\20150421 Ori and the Blind Forest _ Any% Speedrun _ 37_24 - v4218137\[Source - unknown].mp4
ffmpeg version N-50911-g9efcfbe Copyright (c) 2000-2013 the FFmpeg developers
  built on Mar 13 2013 21:26:48 with gcc 4.7.2 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  libavutil      52. 19.100 / 52. 19.100
  libavcodec     55.  0.100 / 55.  0.100
  libavformat    55.  0.100 / 55.  0.100
  libavdevice    54.  4.100 / 54.  4.100
  libavfilter     3. 45.103 /  3. 45.103
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
[mpegts @ 022bf680] max_analyze_duration 5000000 reached at 5000000 microseconds
[mpegts @ 022bf680] Could not find codec parameters for stream 2 (Audio: mp3 ([21][0][0][0] / 0x0015), 0 channels): unspecified frame size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mpegts @ 022bf680] Estimating duration from bitrate, this may be inaccurate
[hls,applehttp @ 022b8820] max_analyze_duration 5000000 reached at 5000000 microseconds
[hls,applehttp @ 022b8820] Could not find codec parameters for stream 2 (Audio: mp3 ([21][0][0][0] / 0x0015), 0 channels, s16p): unspecified frame size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, hls,applehttp, from 'http://vod.ak.hls.ttvnw.net/v1/AUTH_system/vods_01ec/andy_14095574032_233944361/chunked/highlight-4218137.m3u8':
  Duration: 00:44:28.00, start: 4253.070656, bitrate: 0 kb/s
  Program 0 
    Metadata:
      variant_bitrate : 0
    Stream #0:0: Audio: mp3 ([3][0][0][0] / 0x0003), 44100 Hz, stereo, s16p, 128 kb/s
    Stream #0:1: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 1280x720, 30 fps, 60 tbr, 90k tbn, 120 tbc
    Stream #0:2: Audio: mp3 ([21][0][0][0] / 0x0015), 0 channels, s16p
Output #0, mp4, to 'D:\V\twitch -vod\Andy\20150421 Ori and the Blind Forest _ Any% Speedrun _ 37_24 - v4218137\[Source - unknown].mp4.part':
  Metadata:
    encoder         : Lavf55.0.100
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q=2-31, 30 fps, 90k tbn, 90k tbc
    Stream #0:1: Audio: mp3 (i[0][0][0] / 0x0069), 44100 Hz, stereo, 128 kb/s
Stream mapping:
  Stream #0:1 -> #0:0 (copy)
  Stream #0:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
[NULL @ 09aac5a0] Error parsing ADTS frame header!
Failed to open bitstream filter aac_adtstoasc for stream 0 with codec copy: Operation not permitted
[NULL @ 09aac5a0] Error parsing ADTS frame header!
Failed to open bitstream filter aac_adtstoasc for stream 0 with codec copy: Operation not permitted
[NULL @ 09aac5a0] Error parsing ADTS frame header!
Failed to open bitstream filter aac_adtstoasc for stream 0 with codec copy: Operation not permitted

The video downloaded is fine, everything looks good and the sound is okay.

[dstftw]

That's actually from ffmpeg, not youtube-dl.

[yan12125]

The raw .ts segments from this video have mp3 audio streams:

$ ffprobe index-0000001739-wvgw.ts\?start_offset=13170716\&end_offset=14338195
ffprobe version 2.6.2 Copyright (c) 2007-2015 the FFmpeg developers
  built with gcc 4.9.2 (GCC) 20150304 (prerelease)
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-avisynth --enable-avresample --enable-fontconfig --enable-gnutls --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-runtime-cpudetect --enable-shared --enable-swresample --enable-vdpau --enable-version3 --enable-x11grab
  libavutil      54. 20.100 / 54. 20.100
  libavcodec     56. 26.100 / 56. 26.100
  libavformat    56. 25.101 / 56. 25.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 11.102 /  5. 11.102
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  3.100 / 53.  3.100
[NULL @ 0x7fbe0cb19600] start time for stream 0 is not set in estimate_timings_from_pts
[mpegts @ 0x7fbe0cb15620] Could not find codec parameters for stream 0 (Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16p): unspecified frame size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mpegts, from 'index-0000001739-wvgw.ts?start_offset=13170716&end_offset=14338195':
  Duration: 00:00:04.00, start: 6943.449000, bitrate: 2335 kb/s
  Program 1 
    Stream #0:0[0x100]: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16p
    Stream #0:1[0x101]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709/bt709/iec61966-2-1), 1280x720, 60 fps, 60 tbr, 90k tbn, 120 tbc
    Stream #0:2[0x102]: Data: timed_id3 (ID3  / 0x20334449)
Unsupported codec with id 1414087731 for input stream 2

So the aac_adtstoasc option in this line simply fails. I've inspected several videos from twitch, and found no other one with a non-aac audio stream. Maybe adding a workaround option to disable aac_adtstoaac in HlsFD can solve this issue?

[scottjad]

This might be helpful:
http://blog.twitch.tv/2015/05/weve-updated-our-content-appeals-process/

Vod urls with /v/ in them on twitch are new (HLS), while the old vod url format was /b/ (FLV). I don't think youtube-dl currently handles the /v/ urls.