QVidium QVENC Encoder v17 - Manual (Page 50)

User’s Manual v.17 QVidium
®
H.264 HD Video Codecs ™
Copyright 2011-2015 QVidium
®
Technologies, Inc. Page 50 of 73
Figure 7: Screen shots from Files, Usage, and Play menus.
10.2 Command-Line Interface
10.2.1 Mounting and Un-mounting an External Storage Device
When you connect a NTFS or FAT formatted external storage device to the USB interface, the
embedded Linux 2.6 Operating System will automatically mount the file system. (If you wish to
connect a Linux formatted Filesystem, such as ext2 or ext3, you will have to manually mount the
file system.) The initial mount point is /media/sda1. From the command-line interface, first type
“cd /media/sda1” then use “ls” for a listing of the files on the storage device.
However, if you wish to remove a mounted storage device, you must first unmount it. To unmount
the disk or storage device, you must first stop any programs that are accessing the device, then
you must cd away fro
m the mounted directory, such as “cd /”. You can then issue the unmount
command: “umount /media/sda1”. After this command successfully completes, you can safely
remove the external storage device and, if desired, insert another storage device. As long as you
first unmount the old storage device, the next storage device will be mounted as /media/sda1. If
you do not unmount the storage device, or mount a second storage device, the second device will
mount at location /media/sdb1. Currently, there us a limit of only 2 different mount points, sda1
and sdb1. Additional partitions on a given storage device will auto-mount as /media/sdaX or
/media/sdbY, where X and Y are partition numbers starting with 2, and incrementing up to the
number of partitions on that storage device.
10.2.2 Encoding to a File
You will be using the application “qvplayer” located in the /qvidium directory to operate the
codec from the command-line interface. To get the full set of options to qvplayer, run it as
follows:
/qvidium/qvplayer –h
We suggest that you first cd to the mount external storage directory and then run qvplayer. To
encode to a file, run the following command:
/qvidium/qvplayer –I <input source> -O file –o <output file name>