I could not find xvid4conf in pkgsrc nor pkgsrc-wip, so here it is.
Sorry if this is not the right place/way to submit it.

cd pkgsrc/multimedia
mkdir xvid4conf
cd xvid4conf
cat <<EOF >DESCR
This tool creates XviD configuration files. The generated
configuration file is meant to be read by transcode's xvid4
export module. This module (and so the configuration file)
is intended to be used with XviD 1.0 (dev-api-4)
EOF
cat <<EOF >PLIST
@comment $NetBSD$
bin/xvid4conf
EOF
cat <<EOF >distinfo
$NetBSD$

SHA1 (xvid4conf-1.12.tar.gz) = b44e9b19bc4190c26992bc7c6a89a0a7960b3bd1
Size (xvid4conf-1.12.tar.gz) = 133494 bytes
EOF
cat <<EOF >Makefile
# $NetBSD$

DISTNAME=	xvid4conf-1.12
CATEGORIES=	multimedia
MASTER_SITES=	http://zebra.fh-weingarten.de/~transcode/xvid4conf/

MAINTAINER=	tech-pkg@NetBSD.org
HOMEPAGE=	http://zebra.fh-weingarten.de/~transcode/
COMMENT=	XviD Configuration Panel

GNU_CONFIGURE=	YES
USE_BUILDLINK3=	YES
USE_X11=	YES

include "../../x11/gtk2/buildlink3.mk"

include "../../mk/bsd.pkg.mk"
EOF


# BTW, it builds and runs ok on NetBSD-1.6-current/i386