ffmpeg -i input.mp4 -pix_fmt yuv420p -vcodec libx264 -acodec aac output.mp4

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kio-mtp and mtp-detect stopped working

But jmtpfs seams to work - i decided to mount on usb plug in with an udev rule

#> apt-get install jmtpfs
#> mkdir -p /media/mtp

/etc/udev/rules.d/99-jmtpfs.rules

ACTION=="add", ENV{ID_MTP_DEVICE}=="1", RUN="/usr/bin/jmtpfs -o allow_other /media/mtp"
ACTION=="remove", ENV{ID_MTP_DEVICE}=="1", RUN="/bin/fusermount -u /media/mtp""

A little bit faster is simple-mtpfs, but you have to compile

apt-get install libusb-dev libmtp-dev

git clone https://github.com/phatina/simple-mtpfs.git
cd imple-mtpfs
./autogen.sh
mkdir build && cd build
../configure --prefix=/usr
make
sudo make install

/etc/udev/rules.d/99-simple-mtpfs.rules

ACTION=="add",ENV{ID_MTP_DEVICE}=="1",RUN="/usr/bin/simple-mtpfs -o allow_other /media/mtp"
ACTION=="remove", ENV{ID_MTP_DEVICE}=="1", RUN="/bin/fusermount -u /media/mtp""

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decode to wav

avconv -i input.m4a output.wav
for f in *.m4a; do avconv -i "$f" "${f/%m4a/wav}"; done
faad -o output.wav input.aac
sox -t raw -r 8000 -A -b 8 -c 1 file.alaw file.wav
sox -t raw -r 8000 -U -b 8 -c 1 file.mulaw test.wav

decode from wav

sox file.wav -t raw -r 8000 -c 1 -b 8 -U file.mulaw
sox file.wav -t raw -r 8000 -c 1 -b 8 -A file.alaw

cut

sox test.wav 60secs.wav --show-progress trim 0 01:00

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minix> click right bottom (clock), click settings, click settings on bottom
       and choose com.rockchip.settings.
minix> enable Usb debugging
minix> select device and change usb connection (PC) to MTP.
minix> connect minix with USB Cable to PC.

ubuntu> echo 0x2207 >> ~/.android/adb_usb.ini
ubuntu> apt-get install android-tools-adb (get a root shell with adb shell)
ubuntu> sudo adb start-server
ubuntu> adb devices (you should see your minix device)

ubuntu> download http://files.androtab.info/rockchip/rk3 ... X5_CWM.zip
        and rename it to update.zip
        (http://forum.xda-developers.com/showthr ... ?t=2230186)
ubuntu> adb push update.zip /sdcard/
ubuntu> adb reboot
minix> on boot you are prompted to install the update, confirm it
after install completed
ubuntu> adb reboot recovery
minix> choose install zip from sideload
ubuntu> download http://www.freak-tab.de/petrus/neo_x5_f ... ir_CWM.zip
        (http://www.freaktab.com/showthread.php? ... Minix-Roms)
ubuntu> adb sideload neo_x5_finless_12b_720_noair_CWM.zip
minix> reboot system now

Update: I've installed this image now.


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After plug in of a wifi usb stick linux act's as a hostap.

apt-get install isc-dhcp-server hostapd

changes in /etc/hostapd/hostapd.conf

interface=wlan0
driver=nl80211
ssid=MYSSID
country_code=AT
ieee80211d=1
hw_mode=g
channel=11
beacon_int=1000
dtim_period=20
ieee80211n=1
wpa=2
wpa_passphrase=MYPASSPHRASE
wpa_pairwise=TKIP CCMP

/etc/network/interfaces

iface wlan0 inet static
  address 192.168.9.1
  netmask 255.255.255.0
  hostapd /etc/hostapd/hostapd.conf
  up iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
  up /etc/init.d/isc-dhcp-server restart
  down iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE
  down killall hostapd

first check vendor and product id with lsusb:

/etc/udev/rules.d/local.rules

ACTION=="add", SUBSYSTEMS=="usb", ATTRS{idVendor}=="148f", ATTRS{idProduct}=="3070", \
                                                     RUN+="/sbin/ifup wlan0"
ACTION=="remove", SUBSYSTEM=="net", KERNEL=="wlan0", RUN+="/sbin/ifdown wlan0"

On booting this does not work for me so i started the hostap by

/etc/rc.local

lsusb | grep -q "148f:3070" && /sbin/ifup wlan0

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