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youtube: -f "bestvideo+bestaudio" gets two video links, no audio on some Vids #20296

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opened 2026-02-21 11:07:54 -05:00 by deekerman · 5 comments

deekerman commented

2026-02-21 11:07:54 -05:00

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Originally created by @Isayso on GitHub (May 2, 2020).

Checklist

[x ] I'm reporting a broken site support
[ x] I've verified that I'm running youtube-dl version 2020.05.03
[ x] I've checked that all provided URLs are alive and playable in a browser
[ x] I've checked that all URLs and arguments with special characters are properly quoted or escaped
[ x] I've searched the bugtracker for similar issues including closed ones

Verbose log

C:\Program Files\VideoLAN\VLC>youtube-dl -f "bestvideo+bestaudio" -g "https://www.youtube.com/watch?v=ZK2MqwtcQh8" --verbose
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-f', 'bestvideo+bestaudio', '-g', 'https://www.youtube.com/watch?v=ZK2MqwtcQh8', '--verbose']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2020.05.03
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.18362
[debug] exe versions: ffmpeg N-94911-g197985c5bf, ffprobe N-94911-g197985c5bf
[debug] Proxy map: {}
https://manifest.googlevideo.com/api/manifest/dash/expire/1588481653/ei/FfqtXt2fJdCigAfSy62oDA/ip/92.116.24.8/id/64ad8cab0b5c421f/source/youtube/requiressl/yes/playback_host/r2---sn-8xgn5uxa-quhs.googlevideo.com/mh/fb/mm/31%2C26/mn/sn-8xgn5uxa-quhs%2Csn-5hne6nsy/ms/au%2Conr/mv/m/mvi/1/pl/20/hfr/all/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/initcwndbps/1466250/vprv/1/mt/1588459962/fvip/2/keepalive/yes/itag/0/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Chfr%2Cas%2Cvprv%2Citag/sig/AJpPlLswRQIgBXdmiLezZfNRNbQtRgaWO4i0zAGa37zUS88RsaSa154CIQDQ4gROcR3dGvpKA6VC4P9KAbLfwm2RcJxS6WGEJi1sQg%3D%3D/lsparams/playback_host%2Cmh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps/lsig/ALrAebAwRQIhAN437LMzMoj-U1GwsewsOVySxhYyhEJHFS9ZJRqrw5BkAiAKLl0EzhquRahcNk4t_dh8oPhRLLecSULYZ4iez2Mhpw%3D%3D
https://manifest.googlevideo.com/api/manifest/dash/expire/1588481653/ei/FfqtXt2fJdCigAfSy62oDA/ip/92.116.24.8/id/64ad8cab0b5c421f/source/youtube/requiressl/yes/playback_host/r2---sn-8xgn5uxa-quhs.googlevideo.com/mh/fb/mm/31%2C26/mn/sn-8xgn5uxa-quhs%2Csn-5hne6nsy/ms/au%2Conr/mv/m/mvi/1/pl/20/hfr/all/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/initcwndbps/1466250/vprv/1/mt/1588459962/fvip/2/keepalive/yes/itag/0/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Chfr%2Cas%2Cvprv%2Citag/sig/AJpPlLswRQIgBXdmiLezZfNRNbQtRgaWO4i0zAGa37zUS88RsaSa154CIQDQ4gROcR3dGvpKA6VC4P9KAbLfwm2RcJxS6WGEJi1sQg%3D%3D/lsparams/playback_host%2Cmh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps/lsig/ALrAebAwRQIhAN437LMzMoj-U1GwsewsOVySxhYyhEJHFS9ZJRqrw5BkAiAKLl0EzhquRahcNk4t_dh8oPhRLLecSULYZ4iez2Mhpw%3D%3D

C:\Program Files\VideoLAN\VLC>

C:\Program Files\VideoLAN\VLC>youtube-dl -F "https://www.youtube.com/watch?v=ZK2MqwtcQh8" -v
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-F', 'https://www.youtube.com/watch?v=ZK2MqwtcQh8', '-v']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2020.05.03
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.18362
[debug] exe versions: ffmpeg N-94911-g197985c5bf, ffprobe N-94911-g197985c5bf
[debug] Proxy map: {}
[youtube] ZK2MqwtcQh8: Downloading webpage
[youtube] {18} signature length 104, html5 player 64dddad9
[youtube] {137} signature length 104, html5 player 64dddad9
[youtube] {248} signature length 100, html5 player 64dddad9
[youtube] {136} signature length 104, html5 player 64dddad9
[youtube] {247} signature length 100, html5 player 64dddad9
[youtube] {135} signature length 104, html5 player 64dddad9
[youtube] {244} signature length 104, html5 player 64dddad9
[youtube] {134} signature length 104, html5 player 64dddad9
[youtube] {243} signature length 104, html5 player 64dddad9
[youtube] {133} signature length 104, html5 player 64dddad9
[youtube] {242} signature length 104, html5 player 64dddad9
[youtube] {160} signature length 104, html5 player 64dddad9
[youtube] {278} signature length 104, html5 player 64dddad9
[youtube] {140} signature length 100, html5 player 64dddad9
[youtube] {251} signature length 104, html5 player 64dddad9
[youtube] ZK2MqwtcQh8: Downloading MPD manifest
[info] Available formats for ZK2MqwtcQh8:
format code  extension  resolution note
139          m4a        audio only DASH audio   49k , m4a_dash container, mp4a.40.5@ 48k (22050Hz)
140          m4a        audio only DASH audio  130k , m4a_dash container, mp4a.40.2@128k (44100Hz)
251          webm       audio only DASH audio  144k , webm_dash container, opus @160k (48000Hz)
278          webm       256x144    DASH video   95k , webm_dash container, vp9, 30fps, video only
160          mp4        256x144    DASH video  108k , mp4_dash container, avc1.4d400b, 30fps, video only
242          webm       426x240    DASH video  220k , webm_dash container, vp9, 30fps, video only
133          mp4        426x240    DASH video  242k , mp4_dash container, avc1.4d400c, 30fps, video only
243          webm       640x360    DASH video  405k , webm_dash container, vp9, 30fps, video only
134          mp4        640x360    DASH video  544k , mp4_dash container, avc1.4d401e, 30fps, video only
244          webm       854x480    DASH video  752k , webm_dash container, vp9, 30fps, video only
135          mp4        854x480    DASH video 1155k , mp4_dash container, avc1.4d4014, 30fps, video only
247          webm       1280x720   DASH video 1505k , webm_dash container, vp9, 30fps, video only
136          mp4        1280x720   DASH video 2310k , mp4_dash container, avc1.4d4016, 30fps, video only
248          webm       1920x1080  DASH video 2646k , webm_dash container, vp9, 30fps, video only
137          mp4        1920x1080  DASH video 4437k , mp4_dash container, avc1.640028, 30fps, video only
18           mp4        640x360    360p  380k , avc1.42001E, mp4a.40.2@ 96k (44100Hz), 13.76MiB (best)

Description

I use youtube-dl to get the video and audio DASH links from YouTube to play them in vlc. On some (!) videos the -f option gets only the video link for video and audio. Seems to be more frequent on newer YouTube videos.

Originally created by @Isayso on GitHub (May 2, 2020).  ## Checklist  - [x ] I'm reporting a broken site support - [ x] I've verified that I'm running youtube-dl version **2020.05.03** - [ x] I've checked that all provided URLs are alive and playable in a browser - [ x] I've checked that all URLs and arguments with special characters are properly quoted or escaped - [ x] I've searched the bugtracker for similar issues including closed ones ## Verbose log  ``` C:\Program Files\VideoLAN\VLC>youtube-dl -f "bestvideo+bestaudio" -g "https://www.youtube.com/watch?v=ZK2MqwtcQh8" --verbose [debug] System config: [] [debug] User config: [] [debug] Custom config: [] [debug] Command-line args: ['-f', 'bestvideo+bestaudio', '-g', 'https://www.youtube.com/watch?v=ZK2MqwtcQh8', '--verbose'] [debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252 [debug] youtube-dl version 2020.05.03 [debug] Python version 3.4.4 (CPython) - Windows-10-10.0.18362 [debug] exe versions: ffmpeg N-94911-g197985c5bf, ffprobe N-94911-g197985c5bf [debug] Proxy map: {} https://manifest.googlevideo.com/api/manifest/dash/expire/1588481653/ei/FfqtXt2fJdCigAfSy62oDA/ip/92.116.24.8/id/64ad8cab0b5c421f/source/youtube/requiressl/yes/playback_host/r2---sn-8xgn5uxa-quhs.googlevideo.com/mh/fb/mm/31%2C26/mn/sn-8xgn5uxa-quhs%2Csn-5hne6nsy/ms/au%2Conr/mv/m/mvi/1/pl/20/hfr/all/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/initcwndbps/1466250/vprv/1/mt/1588459962/fvip/2/keepalive/yes/itag/0/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Chfr%2Cas%2Cvprv%2Citag/sig/AJpPlLswRQIgBXdmiLezZfNRNbQtRgaWO4i0zAGa37zUS88RsaSa154CIQDQ4gROcR3dGvpKA6VC4P9KAbLfwm2RcJxS6WGEJi1sQg%3D%3D/lsparams/playback_host%2Cmh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps/lsig/ALrAebAwRQIhAN437LMzMoj-U1GwsewsOVySxhYyhEJHFS9ZJRqrw5BkAiAKLl0EzhquRahcNk4t_dh8oPhRLLecSULYZ4iez2Mhpw%3D%3D https://manifest.googlevideo.com/api/manifest/dash/expire/1588481653/ei/FfqtXt2fJdCigAfSy62oDA/ip/92.116.24.8/id/64ad8cab0b5c421f/source/youtube/requiressl/yes/playback_host/r2---sn-8xgn5uxa-quhs.googlevideo.com/mh/fb/mm/31%2C26/mn/sn-8xgn5uxa-quhs%2Csn-5hne6nsy/ms/au%2Conr/mv/m/mvi/1/pl/20/hfr/all/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/initcwndbps/1466250/vprv/1/mt/1588459962/fvip/2/keepalive/yes/itag/0/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Chfr%2Cas%2Cvprv%2Citag/sig/AJpPlLswRQIgBXdmiLezZfNRNbQtRgaWO4i0zAGa37zUS88RsaSa154CIQDQ4gROcR3dGvpKA6VC4P9KAbLfwm2RcJxS6WGEJi1sQg%3D%3D/lsparams/playback_host%2Cmh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps/lsig/ALrAebAwRQIhAN437LMzMoj-U1GwsewsOVySxhYyhEJHFS9ZJRqrw5BkAiAKLl0EzhquRahcNk4t_dh8oPhRLLecSULYZ4iez2Mhpw%3D%3D C:\Program Files\VideoLAN\VLC> C:\Program Files\VideoLAN\VLC>youtube-dl -F "https://www.youtube.com/watch?v=ZK2MqwtcQh8" -v [debug] System config: [] [debug] User config: [] [debug] Custom config: [] [debug] Command-line args: ['-F', 'https://www.youtube.com/watch?v=ZK2MqwtcQh8', '-v'] [debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252 [debug] youtube-dl version 2020.05.03 [debug] Python version 3.4.4 (CPython) - Windows-10-10.0.18362 [debug] exe versions: ffmpeg N-94911-g197985c5bf, ffprobe N-94911-g197985c5bf [debug] Proxy map: {} [youtube] ZK2MqwtcQh8: Downloading webpage [youtube] {18} signature length 104, html5 player 64dddad9 [youtube] {137} signature length 104, html5 player 64dddad9 [youtube] {248} signature length 100, html5 player 64dddad9 [youtube] {136} signature length 104, html5 player 64dddad9 [youtube] {247} signature length 100, html5 player 64dddad9 [youtube] {135} signature length 104, html5 player 64dddad9 [youtube] {244} signature length 104, html5 player 64dddad9 [youtube] {134} signature length 104, html5 player 64dddad9 [youtube] {243} signature length 104, html5 player 64dddad9 [youtube] {133} signature length 104, html5 player 64dddad9 [youtube] {242} signature length 104, html5 player 64dddad9 [youtube] {160} signature length 104, html5 player 64dddad9 [youtube] {278} signature length 104, html5 player 64dddad9 [youtube] {140} signature length 100, html5 player 64dddad9 [youtube] {251} signature length 104, html5 player 64dddad9 [youtube] ZK2MqwtcQh8: Downloading MPD manifest [info] Available formats for ZK2MqwtcQh8: format code extension resolution note 139 m4a audio only DASH audio 49k , m4a_dash container, mp4a.40.5@ 48k (22050Hz) 140 m4a audio only DASH audio 130k , m4a_dash container, mp4a.40.2@128k (44100Hz) 251 webm audio only DASH audio 144k , webm_dash container, opus @160k (48000Hz) 278 webm 256x144 DASH video 95k , webm_dash container, vp9, 30fps, video only 160 mp4 256x144 DASH video 108k , mp4_dash container, avc1.4d400b, 30fps, video only 242 webm 426x240 DASH video 220k , webm_dash container, vp9, 30fps, video only 133 mp4 426x240 DASH video 242k , mp4_dash container, avc1.4d400c, 30fps, video only 243 webm 640x360 DASH video 405k , webm_dash container, vp9, 30fps, video only 134 mp4 640x360 DASH video 544k , mp4_dash container, avc1.4d401e, 30fps, video only 244 webm 854x480 DASH video 752k , webm_dash container, vp9, 30fps, video only 135 mp4 854x480 DASH video 1155k , mp4_dash container, avc1.4d4014, 30fps, video only 247 webm 1280x720 DASH video 1505k , webm_dash container, vp9, 30fps, video only 136 mp4 1280x720 DASH video 2310k , mp4_dash container, avc1.4d4016, 30fps, video only 248 webm 1920x1080 DASH video 2646k , webm_dash container, vp9, 30fps, video only 137 mp4 1920x1080 DASH video 4437k , mp4_dash container, avc1.640028, 30fps, video only 18 mp4 640x360 360p 380k , avc1.42001E, mp4a.40.2@ 96k (44100Hz), 13.76MiB (best) ``` ## Description  I use youtube-dl to get the video and audio DASH links from YouTube to play them in vlc. On some (!) videos the -f option gets only the video link for video and audio. Seems to be more frequent on newer YouTube videos.

deekerman

2026-02-21 11:07:54 -05:00

closed this issue
added the
invalid
label

deekerman commented

2026-02-21 11:07:59 -05:00

Author

Owner

@dstftw commented on GitHub (May 2, 2020):

So what? This is expected behavior.

@dstftw commented on GitHub (May 2, 2020): So what? This is expected behavior.

deekerman commented

2026-02-21 11:07:59 -05:00

Author

Owner

@Isayso commented on GitHub (May 3, 2020):

That I don't get the audio link with bestaudio is expected behavior?
Can you explain how to get the audio link on these videos? Thank you!

@Isayso commented on GitHub (May 3, 2020): That I don't get the audio link with bestaudio is expected behavior? Can you explain how to get the audio link on these videos? Thank you!

deekerman commented

2026-02-21 11:07:59 -05:00

Author

Owner

@dstftw commented on GitHub (May 3, 2020):

The links are mpd manifest URL as this is fragmented DASH. No audio or video link technically exists.

@dstftw commented on GitHub (May 3, 2020): The links are mpd manifest URL as this is fragmented DASH. No audio or video link technically exists.

deekerman commented

2026-02-21 11:08:00 -05:00

Author

Owner

@Isayso commented on GitHub (May 3, 2020):

Ok, thanks, just for the background of my question, I use this function for around 2 years now in my apps, so I was wondering what happened suddenly. No idea how to go around this yet.

@Isayso commented on GitHub (May 3, 2020): Ok, thanks, just for the background of my question, I use this function for around 2 years now in my apps, so I was wondering what happened suddenly. No idea how to go around this yet.

deekerman commented

2026-02-21 11:08:00 -05:00

Author

Owner

@dstftw commented on GitHub (May 3, 2020):

Around what? Again: direct media links are only possible for media served directly, if it's served in fragments you can't get URL to media file cause there is no media file but fragments.

@dstftw commented on GitHub (May 3, 2020): Around what? Again: direct media links are only possible for media served directly, if it's served in fragments you can't get URL to media file cause there is **no media file** but fragments.

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starred/youtube-dl-ytdl-org#20296

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