its blocking. it should work also with libav # emerge -uDNav world * IMPORTANT: 1 news items need reading for repository 'gentoo'. * Use eselect news to read news items. These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild NS ] media-video/ffmpeg-2.2.2:0/52.55.55 [0.10.12:0.10] USE="X aac alsa bzip2 encode gnutls hardcoded-tables iconv jack jpeg2k mmx mp3 network opengl oss pulseaudio sdl sse sse2 ssse3 theora threads truetype vaapi vdpau vorbis wavpack x264 xvid zlib -3dnow -3dnowext -aacplus (-altivec) -amr -amrenc (-armv5te) (-armv6) (-armv6t2) (-armvfp) -avx -avx2 -bindist -bluray -cdio -celt -cpudetection -debug -doc -examples -faac -fdk -flite -fma3 -fma4 -fontconfig -frei0r -gme -gsm -iec61883 -ieee1394 -ladspa -libass -libcaca -libsoxr -libv4l (-mips32r2) (-mipsdspr1) (-mipsdspr2) (-mipsfpu) -mmxext -modplug (-neon) -openal -openssl -opus -pic -quvi -rtmp -schroedinger -speex -sse3 -sse4 -sse4_2 -ssh -static-libs {-test} -twolame -v4l -vpx -webp -x265 -zvbi" FFTOOLS="aviocat cws2fws ffescape ffeval ffhash fourcc2pixfmt graph2dot ismindex pktdumper qt-faststart trasher" 6,862 kB [ebuild R ] media-video/ffmpeg-0.10.12:0.10 USE="X aac alsa bzip2 encode hardcoded-tables jack jpeg2k mmx mp3 network oss pulseaudio sdl ssse3 theora threads* truetype vaapi* vdpau* vorbis x264 xvid zlib -3dnow -3dnowext -aacplus (-altivec) -amr -avx -bindist -cdio (-celt) -cpudetection -debug -dirac -doc -faac (-frei0r) (-gnutls) -gsm -ieee1394 -libass -libv4l -mmxext -modplug (-neon) -openal -openssl -pic (-rtmp) -schroedinger -speex -static-libs {-test} -v4l (-vis) -vpx" ABI_X86="32 (64) (-x32)" 0 kB [ebuild R ] virtual/ffmpeg-9 USE="X encode jpeg2k mp3 sdl theora threads truetype vaapi* vdpau x264 -gsm -opus -speex" 0 kB [ebuild U *] media-video/mpv-9999 [0.3.10] USE="X alsa bluray bs2b dvd dvdnav enca encode iconv jack jpeg lcms libass libguess lua mpg123 openal opengl oss pulseaudio quvi sdl shm vaapi vdpau xscreensaver xv -cdio* -doc-pdf -dvb -examples% -joystick -ladspa -libcaca -lirc -luajit -portaudio -postproc* -pvr -samba (-selinux) -v4l -vf-dlopen -wayland -xinerama (-radio%) (-vcd%*)" 0 kB [blocks B ] media-libs/libpostproc ("media-libs/libpostproc" is blocking media-video/ffmpeg-2.2.2) [blocks B ] media-video/ffmpeg:0 ("media-video/ffmpeg:0" is blocking media-libs/libpostproc-10.20140517) [blocks B ] media-video/ffmpeg:0 ("media-video/ffmpeg:0" is blocking media-video/libav-9.13) Total: 4 packages (1 upgrade, 1 in new slot, 2 reinstalls), Size of downloads: 6,862 kB Conflict: 3 blocks (3 unsatisfied) * Error: The above package list contains packages which cannot be * installed at the same time on the same system. (media-video/ffmpeg-2.2.2:0/52.55.55::gentoo, ebuild scheduled for merge) pulled in by >=media-video/ffmpeg-2.1.4:0[network] required by (media-video/mpv-9999:0/0::gentoo, ebuild scheduled for merge) >=media-video/ffmpeg-2.1.4:0=[encode?,threads,vaapi?,vdpau?] (>=media-video/ffmpeg-2.1.4:0=[encode,threads,vaapi,vdpau]) required by (media-video/mpv-9999:0/0::gentoo, ebuild scheduled for merge) (media-video/libav-9.13:0/9::gentoo, installed) pulled in by >=media-video/libav-9:0/9= required by (media-video/handbrake-0.9.9-r1:0/0::gentoo, installed) >=media-video/libav-9[x264,mp3,encode,theora,jpeg2k?] (>=media-video/libav-9[x264,mp3,encode,theora,jpeg2k]) required by (media-gfx/blender-2.70a-r3:0/0::gentoo, installed) >=media-video/libav-9:= required by (media-video/handbrake-0.9.9-r1:0/0::gentoo, installed) >=media-video/libav-9[X?,encode?,gsm?,jpeg2k?,mp3?,opus?,sdl?,speex?,theora?,threads?,truetype?,vaapi?,vdpau?,x264?] (>=media-video/libav-9[X,encode,jpeg2k,mp3,sdl,theora,threads,truetype,vaapi,vdpau,x264]) required by (virtual/ffmpeg-9:0/0::gentoo, ebuild scheduled for merge) (media-libs/libpostproc-10.20140517:0/0::gentoo, installed) pulled in by media-libs/libpostproc required by (media-video/mplayer2-2.0_p20131009:0/0::gentoo, installed) media-libs/libpostproc:0 required by (media-video/vlc-2.1.4:0/5-7::gentoo, installed) media-libs/libpostproc required by (media-plugins/gst-plugins-ffmpeg-0.10.13_p201211-r1:0.10/0.10::gentoo, installed) For more information about Blocked Packages, please refer to the following Reproducible: Always Portage 2.2.10 (default/linux/amd64/13.0/desktop, gcc-4.8.2, glibc-2.19, 3.14.4-gentoo x86_64) ================================================================= System uname: Linux-3.14.4-gentoo-x86_64-Intel-R-_Core-TM-_i7-3740QM_CPU_@_2.70GHz-with-gentoo-2.2 KiB Mem: 24693448 total, 21013848 free KiB Swap: 25598972 total, 25598972 free Timestamp of tree: Mon, 02 Jun 2014 19:00:01 +0000 ld GNU ld (GNU Binutils) 2.24 app-shells/bash: 4.2_p47 dev-java/java-config: 2.2.0 dev-lang/python: 2.7.6-r1, 3.2.5-r4, 3.3.5, 3.4.0 dev-util/cmake: 2.8.12.2-r1 dev-util/pkgconfig: 0.28-r1 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.12.4 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.6, 1.14.1 sys-devel/binutils: 2.24-r2 sys-devel/gcc: 4.8.2 sys-devel/gcc-config: 1.8 sys-devel/libtool: 2.4.2-r1 sys-devel/make: 4.0-r1 sys-kernel/linux-headers: 3.14 (virtual/os-headers) sys-libs/glibc: 2.19 Repositories: gentoo bitcoin steam-overlay bumblebee lokal ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=corei7 -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.5/ext-active/ /etc/php/cgi-php5.5/ext-active/ /etc/php/cli-php5.5/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=corei7 -O2 -pipe" DISTDIR="/mnt/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="de_DE.UTF-8" LC_ALL="" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j9" PKGDIR="/mnt/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/mnt/portage"
You will need to unmask libav-10 if you want to use it with mpv-9999, the dep reads: || ( >=media-video/libav-10:=[encode?,threads,vaapi?,vdpau?] >=media-video/ffmpeg-2.1.4:0=[encode?,threads,vaapi?,vdpau?] ) You may also be missing some USE flags required on libav, I can't tell from your emerge output.
You're mixing the unstable and unkeyworded branches here, so you get to resolve these issues yourself. If you can point out an actual bug, then please explain what it is and reopen this bug report.
