ffmpeg - Mandriva 2007.1. : undefined symbol: av_opt_set_d..

Nerd Fool · External Since: Jul 07, 2007 Posts: 1

Hi -
I am trying to use ffmpeg on my Mandriva 2007.1 system.

When I try to run ffmpeg I am getting the following error.

$ ffmpeg
ffmpeg: symbol lookup error: /usr/lib/libavformat.so.51: undefined
symbol: av_opt_set_defaults

The versions of the software installed are as follows.

$ rpm -q ffmpeg
ffmpeg-0.4.9-3.pre1.7407.10plf2007.1

$ rpm -q libavformats51
libavformats51-0.4.9-3.pre1.7407.10plf2007.1

I am absolutely clueless as to what is happening here. Can somebody
suggest to get this fixed. Thanks in advance.

Adam · External Since: Jan 16, 2005 Posts: 99

Nerd Fool wrote:

> Hi -
> I am trying to use ffmpeg on my Mandriva 2007.1 system.
>
> When I try to run ffmpeg I am getting the following error.
>
>
> $ ffmpeg
> ffmpeg: symbol lookup error: /usr/lib/libavformat.so.51: undefined
> symbol: av_opt_set_defaults
>
> The versions of the software installed are as follows.
>
> $ rpm -q ffmpeg
> ffmpeg-0.4.9-3.pre1.7407.10plf2007.1
>
> $ rpm -q libavformats51
> libavformats51-0.4.9-3.pre1.7407.10plf2007.1
>
> I am absolutely clueless as to what is happening here. Can somebody
> suggest to get this fixed. Thanks in advance.

There a ldconfig command necessary under some circumstances. Perhaps as SU
but do look up its use in the man, "man ldconfig".

Can you confirm that the file exists on your system? With a command like
"find / -xdev -name "libavformat.so.51"

Dan Espen · External Since: Jan 16, 2006 Posts: 495

Adam <nospam.RemoveThis@example.com> writes:

> Nerd Fool wrote:
>
>> Hi -
>> I am trying to use ffmpeg on my Mandriva 2007.1 system.
>>
>> When I try to run ffmpeg I am getting the following error.
>>
>>
>> $ ffmpeg
>> ffmpeg: symbol lookup error: /usr/lib/libavformat.so.51: undefined
>> symbol: av_opt_set_defaults
>>
>> The versions of the software installed are as follows.
>>
>> $ rpm -q ffmpeg
>> ffmpeg-0.4.9-3.pre1.7407.10plf2007.1
>>
>> $ rpm -q libavformats51
>> libavformats51-0.4.9-3.pre1.7407.10plf2007.1
>>
>> I am absolutely clueless as to what is happening here. Can somebody
>> suggest to get this fixed. Thanks in advance.
>
> There a ldconfig command necessary under some circumstances. Perhaps as SU
> but do look up its use in the man, "man ldconfig".
>
> Can you confirm that the file exists on your system? With a command like
> "find / -xdev -name "libavformat.so.51"

The message above says it loaded /usr/lib/libavformat.so.51 which was
supposed to resolve the symbol av_opt_set_defaults but it didn't.

So there is at least one libavformat there, it's just not compatible
with the version of ffmpeg being run.