Problème gentoo release2

Bonjour,
j'ai un serveur dédié chez ovh avec la release2 ovh gentoo 64. Je dois installer dessus ffmpeg et impossible:
Suite à emerge j'ai ce message:

!!! All ebuilds that could satisfy "ffmpeg" have been masked.
!!! One of the following masked packages is required to complete your request:
- media-video/ffmpeg-0.5_p20373 (masked by: required EAPI 2, supported EAPI 1)
- media-video/ffmpeg-0.5_p22846 (masked by: required EAPI 2, supported EAPI 1)
- media-video/ffmpeg-0.6 (masked by: required EAPI 2, supported EAPI 1)
/usr/portage/profiles/package.mask:
# Alexis Ballier <aballier@gentoo.org> (16 Jun 2010)
# Mask FFmpeg 0.6 until reverse deps are checked and safe

- media-video/ffmpeg-9999-r1 (masked by: required EAPI 2, supported EAPI 1)

For more information, see MASKED PACKAGES section in the emerge man page or
refer to the Gentoo Handbook.

comment faire pour faire l'install?

Merci pour vos réponses.

wyllos