[YouTube] Fail downloading a video in particular

[vlakoff]

youtube-dl fails to download this video in particular: https://www.youtube.com/watch?v=AkI8MvKk64I

I have no trouble downloading other videos, including the other videos of this YouTube channel.

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://www.youtube.com/watch?v=AkI8MvKk64I']
[debug] Encodings: locale cp1252, fs mbcs, out cp1252, pref cp1252
[debug] youtube-dl version 2017.11.06
[debug] Python version 3.4.4 - Windows-7-6.1.7601-SP1
[debug] exe versions: none
[debug] Proxy map: {}
[youtube] AkI8MvKk64I: Downloading webpage
[youtube] AkI8MvKk64I: Downloading video info webpage
[youtube] AkI8MvKk64I: Extracting video information
[youtube] AkI8MvKk64I: Downloading MPD manifest
[debug] Default format spec: best/bestvideo+bestaudio
[debug] Invoking downloader on 'https://r4---sn-n4g-nmce.googlevideo.com/videoplayback?ipbits=0&pl=24&mime=video%2Fmp4&id=o-AOpyy5hoSFX0Xpnj3K2KrW0hpdHaQlT1v6zUO1a9lg1a&mn=sn-n4g-nmce&mm=31&ms=au&mv=m&mt=1510282183&requiressl=yes&ip=92.94.220.216&ratebypass=yes&signature=DBDDDDA4A868D2FC8353B470DD5F4F8108068BF7.96B7850393CF6EB1267BBBACBA1C6A76CF522DE0&itag=22&pcm2cms=yes&lmt=1501515122511055&key=yt6&sparams=dur%2Cei%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cpcm2cms%2Cpl%2Cratebypass%2Crequiressl%2Csource%2Cexpire&source=youtube&ei=FRQFWqe0Lo-jWq_CpMgI&initcwndbps=612500&dur=4491.644&expire=1510303861'
[download] Resuming download at byte 2097136

ERROR: Did not get any data blocks
  File "__main__.py", line 19, in <module>
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\__init__.py", line 465, in main
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\__init__.py", line 455, in _real_main
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\YoutubeDL.py", line 1985, in download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\YoutubeDL.py", line 795, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\YoutubeDL.py", line 849, in process_ie_result
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\YoutubeDL.py", line 1619, in process_video_result
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\YoutubeDL.py", line 1892, in process_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\YoutubeDL.py", line 1831, in dl
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\downloader\common.py", line 361, in download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\downloader\http.py", line 287, in real_download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\downloader\http.py", line 257, in download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\downloader\common.py", line 163, in report_error
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\YoutubeDL.py", line 612, in report_error
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmp1ogvhjus\build\youtube_dl\YoutubeDL.py", line 574, in trouble

[al1fr]

Try :
youtube-dl.exe -f 136+140 "https://www.youtube.com/watch?v=AkI8MvKk64I"

[vlakoff]

Thanks. It gives me separate video and audio files, still better than nothing.

Yet, youtube-dl should be able to handle this video as regular.

[al1fr]

To mix video + audio, you need to put ffmpeg.exe in same directory as youtube-dl.
(ffmpeg 32: 'http://ffmpeg.zeranoe.com/builds/win32/static/?C=M&O=D')
(ffmpeg 64: 'http://ffmpeg.zeranoe.com/builds/win64/static/?C=M&O=D')

[vlakoff]

By adding ffmpeg.exe, the video and audio files are now muxed with your -f 136+140 option.

Interestingly, now I can also download the video without format options. However, I get a warning, the result is a mkv file, and the video is 1080p (usually I get 720p, even when 1080p is available, which is fine as I don't need the extra quality of 1080p).

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://www.youtube.com/watch?v=AkI8MvKk64I']
[debug] Encodings: locale cp1252, fs mbcs, out cp1252, pref cp1252
[debug] youtube-dl version 2017.11.06
[debug] Python version 3.4.4 - Windows-7-6.1.7601-SP1
[debug] exe versions: ffmpeg N-88668-g723b6baaf8
[debug] Proxy map: {}
[youtube] AkI8MvKk64I: Downloading webpage
[youtube] AkI8MvKk64I: Downloading video info webpage
[youtube] AkI8MvKk64I: Extracting video information
[youtube] AkI8MvKk64I: Downloading MPD manifest
[debug] Default format spec: bestvideo+bestaudio/best
WARNING: Requested formats are incompatible for merge and will be merged into mkv.
[debug] Invoking downloader on 'https://r4---sn-n4g-nmce.googlevideo.com/videoplayback/id/02423c32f2a4eb82/itag/137/source/youtube/requiressl/yes/pcm2cms/yes/initcwndbps/580000/mv/m/ms/au/ei/UU0GWo3NLsG5cNbDoeAC/pl/24/mn/sn-n4g-nmce/mm/31/ratebypass/yes/mime/video%2Fmp4/otfp/1/gir/yes/clen/293286033/lmt/1500825285346938/dur/4491.553/mt/1510362286/signature/82D397FFF6B52B098C01BE8886FEF05BE3C0C734.0FA7DFC171A2A0BCDDB59F7FA1FF3A529850C5BA/key/dg_yt0/ip/92.94.220.216/ipbits/0/expire/1510384049/sparams/ip,ipbits,expire,id,itag,source,requiressl,pcm2cms,initcwndbps,mv,ms,ei,pl,mn,mm,ratebypass,mime,otfp,gir,clen,lmt,dur/'
[dashsegments] Total fragments: 843
[download] Destination: Radio Melon - Des Melons et des Hommes 2 - Arnaud et Saint Claude-AkI8MvKk64I.f137.mp4

[download]   0.1% of ~587.79KiB at Unknown speed ETA 01:49
(...)
[download] 100.0% of ~279.69MiB at  2.54MiB/s ETA 00:00      
[download] 100% of 279.69MiB in 04:03                        
[debug] Invoking downloader on 'https://r4---sn-n4g-nmce.googlevideo.com/videoplayback?mm=31&mn=sn-n4g-nmce&id=o-AB9diNBb3G6a5Jf_gmkuE8xcKalHvOfq6q7Sfi3DGUic&keepalive=yes&ip=92.94.220.216&pl=24&mt=1510362286&mv=m&ei=UU0GWt6JEMHHcdW4k6AN&ms=au&expire=1510384049&clen=76519068&itag=251&gir=yes&key=yt6&signature=6EA7AAA0FBA2BF6590D770A815F28223473C41A3.79C8DEBA1D6B91A70D670E1A6056E902C8A3437F&requiressl=yes&source=youtube&dur=4491.601&lmt=1501721011587485&ipbits=0&initcwndbps=580000&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cpcm2cms%2Cpl%2Crequiressl%2Csource%2Cexpire&mime=audio%2Fwebm&pcm2cms=yes&ratebypass=yes'
[download] Destination: Radio Melon - Des Melons et des Hommes 2 - Arnaud et Saint Claude-AkI8MvKk64I.f251.webm

[download]   0.0% of 72.97MiB at Unknown speed ETA Unknown ETA
(...)
[download] 100.0% of 72.97MiB at  4.91MiB/s ETA 00:00         
[download] 100% of 72.97MiB in 00:16                          
[ffmpeg] Merging formats into "Radio Melon - Des Melons et des Hommes 2 - Arnaud et Saint Claude-AkI8MvKk64I.mkv"
[debug] ffmpeg command line: ffmpeg -y -i "file:Radio Melon - Des Melons et des Hommes 2 - Arnaud et Saint Claude-AkI8MvKk64I.f137.mp4" -i "file:Radio Melon - Des Melons et des Hommes 2 - Arnaud et Saint Claude-AkI8MvKk64I.f251.webm" -c copy -map "0:v:0" -map "1:a:0" "file:Radio Melon - Des Melons et des Hommes 2 - Arnaud et Saint Claude-AkI8MvKk64I.temp.mkv"
Deleting original file Radio Melon - Des Melons et des Hommes 2 - Arnaud et Saint Claude-AkI8MvKk64I.f137.mp4 (pass -k to keep)
Deleting original file Radio Melon - Des Melons et des Hommes 2 - Arnaud et Saint Claude-AkI8MvKk64I.f251.webm (pass -k to keep)

For convenience, here is the output from youtube-dl -F:

format code  extension  resolution note
139          m4a        audio only DASH audio   52k , m4a_dash container, mp4a.40.5@ 48k (22050Hz)
249          webm       audio only DASH audio   59k , opus @ 50k, 28.12MiB
250          webm       audio only DASH audio   77k , opus @ 70k, 36.76MiB
140          m4a        audio only DASH audio  132k , m4a_dash container, mp4a.40.2@128k (44100Hz)
171          webm       audio only DASH audio  138k , vorbis@128k, 68.61MiB
251          webm       audio only DASH audio  153k , opus @160k, 72.97MiB
160          mp4        256x144    DASH video   66k , avc1.4d400c, 30fps, video only
278          webm       256x144    144p  105k , webm container, vp9, 30fps, video only, 16.30MiB
133          mp4        426x240    DASH video  106k , avc1.4d4015, 30fps, video only
242          webm       426x240    240p  112k , vp9, 30fps, video only, 30.67MiB
134          mp4        640x360    DASH video  164k , avc1.4d401e, 30fps, video only
243          webm       640x360    360p  198k , vp9, 30fps, video only, 53.61MiB
244          webm       854x480    480p  298k , vp9, 30fps, video only, 80.38MiB
135          mp4        854x480    DASH video  319k , avc1.4d401f, 30fps, video only
247          webm       1280x720   720p  544k , vp9, 30fps, video only, 129.86MiB
136          mp4        1280x720   DASH video  568k , avc1.4d401f, 30fps, video only
248          webm       1920x1080  1080p  984k , vp9, 30fps, video only, 193.80MiB
137          mp4        1920x1080  DASH video 2115k , avc1.640028, 30fps, video only
17           3gp        176x144    small , mp4v.20.3, mp4a.40.2@ 24k
36           3gp        320x180    small , mp4v.20.3, mp4a.40.2
43           webm       640x360    medium , vp8.0, vorbis@128k
18           mp4        640x360    medium , avc1.42001E, mp4a.40.2@ 96k
22           mp4        1280x720   hd720 , avc1.64001F, mp4a.40.2@192k (best)

Long story short, would it be possible to improve youtube-dl's handling of videos like this one?

[Hrxn]

Yes, but this warning

WARNING: Requested formats are incompatible for merge and will be merged into mkv.

is normal. It's a result of the default format selection used by youtube-dl and the formats offered by YouTube.

[vlakoff]

This video really can't be downloaded without a muxer?

[rautamiekka]

^ Basically any YT vid can, but you're sacrificing vid and audio quality to some extent.

--format "best" "https://www.youtube.com/watch?v=AkI8MvKk64I" will get you the best single-package option YT offers. You won't get the very best vid and very best audio you'd get by default, but you can play the file right away and it's identical to the one you see on YT.

[vlakoff]

The issue is precisely that youtube-dl fails downloading the video if there is no muxer installed.

[al1fr]

The file with the best resolution is probably corrupted.
If you really don't want use a muxer, it's possible to download the video 640x360 with audio 96k :

youtube-dl.exe -f 18 "https://www.youtube.com/watch?v=AkI8MvKk64I"

It works.