[Slackbuilds-users] faac : MP4 support unavailable

Heinz Wiesinger pprkut at liwjatan.at
Sun Mar 15 13:17:54 UTC 2009

On Sunday 15 March 2009 13:57:32 andrew wrote:
> Hi,
> I have compiled libmp4v2- from slackbuilds.org and then faac
> 1.28 with an unmodified script but I get the following with faac
> --long-help:
> +---------
> MP4 specific options:
>   MP4 support unavailable.
> +--------
> Can anyone else duplicate this problem? When running configure the
> external library appears to be picked up:
> +----------
> checking whether MP4Create is declared... yes
> checking for MP4MetadataDelete in -lmp4v2... yes
> checking whether MP4MetadataDelete is declared... yes
> checking for MP4MetadataDelete in -lmp4v2... (cached) yes
> configure: *** Building with external mp4v2 ***
> +---------

For faac to pick up support for mp4v2, you need to use internal libmp4v2 AND 
remove the separate libmp4v2 from the system. It will only use the internal 
one if it doesn't find an external and it won't link to the external (although 
it finds it.). Using the internal libmp4v2 the library will be built as a 
static lib and does not appear in the final package.
That is my experience from testing faac. Hope that helps.

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