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no VBR Header in extracted audio #392

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opened 2026-02-20 21:11:37 -05:00 by deekerman · 3 comments

deekerman commented

2026-02-20 21:11:37 -05:00

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Originally created by @menachemshapiro on GitHub (Nov 3, 2012).

youtube-dl --version --> 2012.10.09
FFmpeg version 0.6.6-4:0.6.6-0ubuntu0.11.04.1
FFprobe version 0.6.6-4:0.6.6-0ubuntu0.11.04.1
python --version --> Python 2.7.1+
OS: Ubuntu 11.04

I run the command:
youtube-dl -tci --extract-audio --audio-format mp3 OyeafzF4WOk

analyzing the mp3 file that is produced using mp3val give the following error message:
VBR detected, but no VBR header is present. Seeking may not work properly.

Originally created by @menachemshapiro on GitHub (Nov 3, 2012). youtube-dl --version --> 2012.10.09 FFmpeg version 0.6.6-4:0.6.6-0ubuntu0.11.04.1 FFprobe version 0.6.6-4:0.6.6-0ubuntu0.11.04.1 python --version --> Python 2.7.1+ OS: Ubuntu 11.04 I run the command: youtube-dl -tci --extract-audio --audio-format mp3 OyeafzF4WOk analyzing the mp3 file that is produced using mp3val give the following error message: VBR detected, but no VBR header is present. Seeking may not work properly.

deekerman closed this issue

2026-02-20 21:11:39 -05:00

deekerman commented

2026-02-20 21:11:41 -05:00

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@Tailszefox commented on GitHub (Nov 4, 2012):

Hm...I'd say it's more of an issue with ffmpeg, as it's the one making the actual conversion. Here's what I get when I run the same series of command:

>  mp3val Mashpia\ \&\ Mekabel\ -\ Episode\ 1\ -\ Our\ True\ Nature-OyeafzF4WOk.mp3
Analyzing file "Mashpia & Mekabel - Episode 1 - Our True Nature-OyeafzF4WOk.mp3"...
INFO: "/home/tails/Bureau/Mashpia & Mekabel - Episode 1 - Our True Nature-OyeafzF4WOk.mp3": 12300 MPEG frames (MPEG 1 Layer III), +ID3v2, Xing header
Done!

I'm not getting any error message in that instance, and the MP3 file is encoded with a variable bitrate. I'm using ffmpeg 0.10.5, which may explain it: maybe older versions of ffmpeg don't write any header while newer versions do. It's just a supposition though, but that seems plausible.

@Tailszefox commented on GitHub (Nov 4, 2012): Hm...I'd say it's more of an issue with ffmpeg, as it's the one making the actual conversion. Here's what I get when I run the same series of command: ``` > mp3val Mashpia\ \&\ Mekabel\ -\ Episode\ 1\ -\ Our\ True\ Nature-OyeafzF4WOk.mp3 Analyzing file "Mashpia & Mekabel - Episode 1 - Our True Nature-OyeafzF4WOk.mp3"... INFO: "/home/tails/Bureau/Mashpia & Mekabel - Episode 1 - Our True Nature-OyeafzF4WOk.mp3": 12300 MPEG frames (MPEG 1 Layer III), +ID3v2, Xing header Done! ``` I'm not getting any error message in that instance, and the MP3 file is encoded with a variable bitrate. I'm using ffmpeg 0.10.5, which may explain it: maybe older versions of ffmpeg don't write any header while newer versions do. It's just a supposition though, but that seems plausible.

deekerman commented

2026-02-20 21:11:41 -05:00

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@FiloSottile commented on GitHub (Nov 4, 2012):

Closing as a Ffmpeg issue. Please try to convert manually a video to mp3 to confirm
ffmpeg -i video.flv -aq 4 audio.mp3

@FiloSottile commented on GitHub (Nov 4, 2012): Closing as a Ffmpeg issue. Please try to convert manually a video to mp3 to confirm `ffmpeg -i video.flv -aq 4 audio.mp3`

deekerman commented

2026-02-20 21:11:41 -05:00

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@menachemshapiro commented on GitHub (Nov 4, 2012):

I tested the ffmpeg command and got the same problem, so definitely an ffmpeg issue.

Thanks,

@menachemshapiro commented on GitHub (Nov 4, 2012): I tested the ffmpeg command and got the same problem, so definitely an ffmpeg issue. Thanks,

deekerman referenced this issue

2026-02-20 23:28:58 -05:00

Vine error #3687

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