[funtoo] (neon) use flag in ffmpeg for arm

[Alpha Chen]

Hi, all,

    Recently, I get a Raspberry Pi 2 B and for sure I want funtoo to run on it, I would like to see whether it can be a think-client without fan replacement for the pc I am using.

    Follow the funtoo install guide for arm and tips on the net. Everything works fine till X installation is done and trying to emerge mpv, indeed I need to enable the neon use flag for ffmpeg but it doesn't available and same for other arm cpu use flags. It looks like that they are masked by profile, but I have enable the "armv7a_hardfp" arch profile.

    Can anyone finger out what happened for these use flags here? Many thanks.

BR Alfred

***
Currently available arch profiles:
  [1]   funtoo/1.0/linux-gnu/arch/arm-32bit/armv7a_hardfp *
  [2]   funtoo/1.0/linux-gnu/arch/arm-32bit/armv6j_hardfp
  [3]   funtoo/1.0/linux-gnu/arch/arm-32bit/armv5te
Currently available subarch profiles:
Currently available build profiles:
  [4]   funtoo/1.0/linux-gnu/build/stable
  [5]   funtoo/1.0/linux-gnu/build/current *
  [6]   funtoo/1.0/linux-gnu/build/experimental
Currently available flavor profiles:
  [7]   funtoo/1.0/linux-gnu/flavor/minimal
  [8]   funtoo/1.0/linux-gnu/flavor/core *
  [9]   funtoo/1.0/linux-gnu/flavor/desktop
  [10]  funtoo/1.0/linux-gnu/flavor/workstation
  [11]  funtoo/1.0/linux-gnu/flavor/hardened
Currently available mix-ins profiles:
  [12]  funtoo/1.0/linux-gnu/mix-ins/audio
  [13]  funtoo/1.0/linux-gnu/mix-ins/cinnamon
  [14]  funtoo/1.0/linux-gnu/mix-ins/console-extras
  [15]  funtoo/1.0/linux-gnu/mix-ins/dvd
  [16]  funtoo/1.0/linux-gnu/mix-ins/gnome
  [17]  funtoo/1.0/linux-gnu/mix-ins/kde
  [18]  funtoo/1.0/linux-gnu/mix-ins/mate
  [19]  funtoo/1.0/linux-gnu/mix-ins/media
  [20]  funtoo/1.0/linux-gnu/mix-ins/media-pro
  [21]  funtoo/1.0/linux-gnu/mix-ins/mediadevice-audio-consumer
  [22]  funtoo/1.0/linux-gnu/mix-ins/mediadevice-audio-pro
  [23]  funtoo/1.0/linux-gnu/mix-ins/mediadevice-base
  [24]  funtoo/1.0/linux-gnu/mix-ins/mediadevice-video-consumer
  [25]  funtoo/1.0/linux-gnu/mix-ins/mediadevice-video-pro
  [26]  funtoo/1.0/linux-gnu/mix-ins/mediaformat-audio-common
  [27]  funtoo/1.0/linux-gnu/mix-ins/mediaformat-audio-extra
  [28]  funtoo/1.0/linux-gnu/mix-ins/mediaformat-gfx-common
  [29]  funtoo/1.0/linux-gnu/mix-ins/mediaformat-gfx-extra
  [30]  funtoo/1.0/linux-gnu/mix-ins/mediaformat-video-common
  [31]  funtoo/1.0/linux-gnu/mix-ins/mediaformat-video-extra
  [32]  funtoo/1.0/linux-gnu/mix-ins/lxde
  [33]  funtoo/1.0/linux-gnu/mix-ins/lxqt
  [34]  funtoo/1.0/linux-gnu/mix-ins/no-emul-linux-x86
  [35]  funtoo/1.0/linux-gnu/mix-ins/no-systemd
  [36]  funtoo/1.0/linux-gnu/mix-ins/print
  [37]  funtoo/1.0/linux-gnu/mix-ins/python3-only
  [38]  funtoo/1.0/linux-gnu/mix-ins/X
  [39]  funtoo/1.0/linux-gnu/mix-ins/xfce
  [40]  funtoo/1.0/linux-gnu/mix-ins/vmware-guest
  [41]  funtoo/1.0/linux-gnu/mix-ins/hardened

***
rpi usr # USE="neon" emerge -avt ffmpeg

 * IMPORTANT: 3 news items need reading for repository 'gentoo'.
 * Use eselect news to read news items.


These are the packages that would be merged, in reverse order:

Calculating dependencies... done!
[ebuild  N     ] media-video/ffmpeg-2.6.1:0/54.56.56  USE="alsa bzip2 encode gpl hardcoded-tables iconv network postproc threads zlib -X -aac -aacplus (-altivec) (-amr) -amrenc (-armv5te) (-armv6) (-armv6t2) (-armvfp) -bluray (-bs2b) -cdio -celt -cpudetection -debug -doc -examples -faac -fdk -flite -fontconfig (-frei0r) -fribidi -gme -gnutls -gsm -iec61883 (-ieee1394) -jack -jpeg2k (-ladspa) -libass -libcaca -libsoxr -libv4l -lzma (-mipsdspr1) (-mipsdspr2) (-mipsfpu) -modplug -mp3 (-neon) -openal -opengl -openssl -opus -oss -pic -pulseaudio (-quvi) (-rtmp) -samba (-schroedinger) -sdl -speex -ssh -static-libs {-test} -theora -truetype -twolame -v4l (-vaapi) (-vdpau) -vorbis (-vpx) -wavpack -webp (-x264) -x265 -xcb -xvid (-zvbi)" FFTOOLS="aviocat cws2fws ffescape ffeval ffhash fourcc2pixfmt graph2dot ismindex pktdumper qt-faststart trasher" 0 kB

***


Portage 2.3.6-r9 (funtoo/1.0/linux-gnu/arch/arm-32bit/armv7a_hardfp, gcc-4.8.4, glibc-2.13-r6, 3.18.10-v7+ armv7l)
=================================================================
System uname: Linux-3.18.10-v7+-armv7l-with-gentoo-2.2.0
KiB Mem:      949412 total,    621404 free
KiB Swap:          0 total,         0 free
Timestamp of tree: Unknown
ld GNU ld (Gentoo 2.24 p1.4) 2.24
app-shells/bash:          4.3_p30-r1
dev-lang/perl:            5.20.2
dev-lang/python:          2.7.9-r1000, 3.3.6-r1000
dev-util/cmake:           3.1.0
sys-apps/baselayout:      2.2.0-r6
sys-apps/openrc:          0.12.4-r4
sys-apps/sandbox:         2.6-r2
sys-devel/autoconf:       2.69
sys-devel/automake:       1.13.4, 1.14.1
sys-devel/binutils:       2.24-r3
sys-devel/gcc:            4.8.4
sys-devel/gcc-config:     1.8
sys-devel/libtool:        2.4.3-r2
sys-devel/make:           3.82-r4
sys-kernel/linux-headers: 3.17-r1 (virtual/os-headers)
sys-libs/glibc:           2.13-r6
Repositories: gentoo GC_Overlay
ACCEPT_KEYWORDS="arm ~arm"
ACCEPT_LICENSE="* -@EULA Oracle-BCLA-JavaSE"
CBUILD="armv7a-hardfloat-linux-gnueabi"
CFLAGS="-O2 -mcpu=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard"
CHOST="armv7a-hardfloat-linux-gnueabi"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -mcpu=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="-j --load-average 3"
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 xattr"
FFLAGS="-O2"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="en_US.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--sort-common -Wl,--as-needed"
MAKEOPTS="-j4"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_TMPDIR="/net/hp/nfs/var/rpitmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/net/hp/nfs/var/GC-Overlay"
SYNC="git://github.com/funtoo/ports-2012.git"
SYNC_USER="root"
USE="acl alsa arm berkdb bzip2 cracklib crypt cxx gdbm iconv icu modules mudflap ncurses nls nptl openmp pam pcre python readline resolvconf ssl tcpd unicode xattr xml zlib" 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 cgi cgid 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 authn_core authz_core socache_shmcb unixd" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_ABIS="2.7 3.3" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19 ruby20 ruby21 ruby22" USERLAND="GNU" VIDEO_CARDS="fbdev" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, SYNC_UMASK

[Fede Zayer]

Hi, Alpha,

I am using funtoo on my old rapsberry pi (the oldest model).
I don't know if on your model the xorg driver works fine, but on my model ir was a mess. As I know wayland works fine.

If you want, you can use my personal overlay where I have some ebuilds that you could find usefull like xbmc adapted for the raspberry pi. You can find it here: https://github.com/fmoro/faustoo

Good luck with your raspberry.

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[Alpha Chen]

Hi, Fede,

    The simple fb driver works fine, should thank to the qual cores and 1G ram. Thanks for your info, I'll check your overlay soon.

BR Alfred