The libva ebuild is from a local overlay. # ldd -r /usr/lib64libmythavcodec0.22.so.0.22.0 linux-vdso.so.1 => (0x00007fff251ff000) libmythavutil-0.22.so.0 => /usr/lib/libmythavutil-0.22.so.0 (0x00007f4f2ed66000) libz.so.1 => /lib/libz.so.1 (0x00007f4f2eb4f000) libva-0.31.0.4.so.1 => /usr/lib/libva-0.31.0.4.so.1 (0x00007f4f2e943000) libfaad.so.2 => /usr/lib/libfaad.so.2 (0x00007f4f2e702000) libpthread.so.0 => /lib/libpthread.so.0 (0x00007f4f2e4e5000) libm.so.6 => /lib/libm.so.6 (0x00007f4f2e264000) libc.so.6 => /lib/libc.so.6 (0x00007f4f2df0b000) libdl.so.2 => /lib/libdl.so.2 (0x00007f4f2dd06000) /lib64/ld-linux-x86-64.so.2 (0x00007f4f2fb0a000) According to http://www.mythtv.org/wiki/XvMC I may be enable with XvMC. emerge --info mythtv Portage 2.2_rc67 (default/linux/amd64/10.0/developer, gcc-4.4.2, glibc-2.11-r1, 2.6.33-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-2.6.33-gentoo-x86_64-Intel-R-_Core-TM-2_Duo_CPU_P8600_@_2.40GHz-with-gentoo-2.0.1 Timestamp of tree: Wed, 10 Mar 2010 16:15:03 +0000 distcc[8498] (dcc_trace_version) distcc 3.1 x86_64-pc-linux-gnu; built May 1 2009 07:16:39 [disabled] ccache version 2.4 [enabled] app-shells/bash: 4.1_p2 dev-java/java-config: 1.3.7-r1, 2.1.10 dev-lang/python: 2.6.4-r1, 3.1.1-r1 dev-util/ccache: 2.4-r8 dev-util/cmake: 2.8.0-r2 sys-apps/baselayout: 2.0.1 sys-apps/openrc: 0.6.0-r1 sys-apps/sandbox: 2.2 sys-devel/autoconf: 2.13, 2.65 sys-devel/automake: 1.7.9-r2, 1.8.5-r3, 1.9.6-r2, 1.10.3, 1.11.1 sys-devel/binutils: 2.20-r1, 2.20.1 sys-devel/gcc: 4.4.2 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.6b virtual/os-headers: 2.6.33 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=core2 -O2 -pipe -g -mssse3 -msse4.1" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/X11/xkb /usr/share/config /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/eselect/postgresql /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=core2 -O2 -pipe -g -mssse3 -msse4.1" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests ccache collision-protect cvs distlocks fixpackages multilib-strict news parallel-fetch preserve-libs protect-owned sandbox sfperms sign splitdebug strict test test-fail-continue unmerge-logs unmerge-orphans userfetch usersandbox" GENTOO_MIRRORS="http://lug.mtu.edu/gentoo/ http://mirror.ovh.net/gentoo-distfiles/" LANG="fr_FR.utf-8" LC_ALL="fr_FR.utf-8" LDFLAGS="-Wl,--as-needed -Wl,--hash-style=gnu -Wl,--sort-common" LINGUAS="fr" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/overlays/sci /usr/local/overlays/x11 /usr/local/overlays/openmoko/trunk/openmoko-target /usr/local/overlays/local" SYNC="rsync://rsync.us.gentoo.org/gentoo-portage" USE="X a52 aac abook acl acpi adns alsa amd64 amr amrnb amrwb ares ass bash-completion berkdb bluetooth bzip2 cairo caps cblas cdaudio cdda cddb cdio cdparanoia cdr cli consolekit cracklib crypt ctypes-python cups curl custom-cxxflags cvs cxx daap dbus detex dia dirac djvu dns dri dts dv dvb dvd dvdnav dvdr dvipdfm emboss encode exif expat extensions extra faac faad fam fbcondecor ffmpeg fftw firefox flac fontconfig fontforge fortran frei0r ft2232 ftd2xx ftdi ftp fts3 gallium gcrypt gd gdbm geoip gif glitz gmp gnutls gpg gpgme gpm graphics graphite graphviz gsm gstreamer gtk hal hdri humanities iconv icu id3tag idn imagemagick imap iproute2 ipv6 jack jadetex jingle jpeg jpeg2k kde kerberos kpathsea kqemu kvm lame lapack laptop lash latex latex3 lcms ldap libass libftdi libgcrypt libnotify libsamplerate libusb-0 libv4l2 live llvm-gcc lua lvm lzma lzo mad matroska mbox melt messenger mikmod mjpeg mktemp mmx mng modplug modules mp3 mp4 mpeg mplayer msn mtp mudflap multilib multislot musepack music mysql ncurses nemesi nls nptl nptlonly nsplugin nss ntp ocaml ocamlopt octave ogg omega openexr opengl openmp openntpd otr pam pango parport parport-giveio passwdqc pch pcre pda pdf perl phonon pipechan pkcs11 plotutils png pop postgres postproc postscript ppds pppd presto pstricks publishers pulseaudio python qemu qt3support qt4 quicktime rar readline reflection rnca rtsp ruby sasl schroedinger science sdl sdl-image secure-delete semantic-desktop sensord session shout sidebar sip smi smime sms smtp sndfile snmp speex spell spl sqlite sqlite3 sse sse2 sse3 ssh ssl ssse3 startup-notification stream strong-optimization subversion svg sysfs syslog system-sqlite t1lib taglib tcpd teletext tga theora threads thumbnail thunar tiff tokyocabinet tools truetype udev udev-acl unicode upnp usb utils v4l v4l2 vaapi vcd vcdinfo vcdx vim-syntax virtualbox vorbis wav wavpack webdav webkit wifi winpopup wmf x264 xcb xcomposite xine xml xorg xosd xulrunner xv xvid xvmc zlib zvbi" ALSA_CARDS="hda-intel" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="fr" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="vesa intel v4l fbdev" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS ================================================================= Package Settings ================================================================= media-tv/mythtv-0.22_p23069 was built with the following: USE="alsa css dvb faad fftw jack mmx (multilib) perl pulseaudio python test tiff xvmc (-altivec) -autostart -debug -directv -ieee1394 -lcd -lirc -vdpau" VIDEO_CARDS="-nvidia -via" CFLAGS="" CXXFLAGS="" >>> Attempting to run pkg_info() for 'media-tv/mythtv-0.22_p23069' info Please include all output in bug reports. MythTV Version : exporté MythTV Branch : Network Protocol : 50 Library API : 0.22.20091023-1 QT Version : 4.6.2 Options compiled in: linux profile using_oss using_alsa using_pulse using_jack using_backend using_dvb using_fribidi using_frontend using_glx_proc_addr_arb using_hdhomerun using_hdpvr using_iptv using_ivtv using_joystick_menu using_libfftw3 using_mheg using_opengl_video using_opengl_vsync using_qtwebkit using_v4l using_x11 using_xrandr using_xv using_xvmc using_xvmcw using_bindings_perl using_bindings_python using_opengl using_ffmpeg_threads using_live using_mheg
XvMC != va by any means. MythTV doesn't use VA-API in any form. Read the page you linked closely. This is being pulled in as a dependency by something else.
