Bug#587898: Bug#587904: error message should say what to try next if codec not found
fabian at greffrath.com
Fri Jul 2 14:21:53 UTC 2010
[Dammit, this didn't go to the bug and submitter by accident.]
Am 02.07.2010 15:34, schrieb jidanni at jidanni.org:
> The reason may be documented in /usr/share/doc/ffmpeg/README.Debian.gz
> but it is very hard to tell.
I fail to see what is difficult to understand in this sentence from
README.Debian: "I did not activate MP3 encoding (through LAME) in
However, I agree that the error message
> Encoder (codec id 86017) not found for output stream #0.0
should be improved to at least call the encoder by name.
> OK, probably the message should be **codec disabled for legal reasons by Debian.
> Try putting debian-multimedia... on top of your /etc/apt/sources.list... and
> do apt-get update, then reinstall their version of this package**"
We have very good reasons to never ever recommend using packages from
this repository. Furthermore, the MP3 encoder has never been actively
*disabled* in Debian. ffmpeg is simply not built against LAME, because
this is not available in Debian at all.
> P.S., does this really turn 8 kb/s into 64 kb/s? Is that a good thing to do?
> Well I tried -ab 8k and found out that the Stream #0.1: Audio: mp3, 22050 Hz, 2 channels, s16, 8 kb/s
> must be wrong. ffprobe gives the same wrong answer.
This is a completely different issue and should get its own bug report.
> P.S.S., the man page,
> -ac channels
> Set the number of audio channels (default = 1).
> is wrong. As you see above two channels were the output, even without
> this option.
> If it just extracts the mp3 then it should say so in several of the
> affected places on the man page.
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