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Installation of the Video Disk Recorder
---------------------------------------
Compiling and running the program:
----------------------------------
Make sure the files from this package are located in a
directory that is "parallel" to the DVB directory of the
driver source for the Siemens DVB-S PCI card (refer to
http://linuxtv.org/dvb/siemens_dvb.html for more information
about that driver). For example, if the DVB driver was
extracted into the directory /home/kls/vdr/DVB, then this
package should be extracted into /home/kls/vdr/VDR.
If you have the DVB driver source in a different location
you will have to change the definition of DVBDIR in the
Makefile (see the file Make.config.template).
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VDR requires the Linux-DVB card driver version dated 2002-11-01 or higher
to work properly.
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After extracting the package, change into the VDR directory
and type 'make'. This should produce an executable file
named 'vdr', which can be run after the DVB driver has been
installed.
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IMPORTANT: See "Configuration files" below for information on how
========= to set up the configuration files at the proper location!
By default the 'vdr' program can be controlled via the PC keyboard. If you have
an infrared remote control unit you can define the REMOTE macro to one of the
following values in the 'make' call to activate the respective control mode:
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REMOTE=RCU control via the "Remote Control Unit" receiver
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(see http://www.cadsoft.de/vdr/remote.htm)
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REMOTE=LIRC control via the "Linux Infrared Remote Control"
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(see http://www.lirc.org)
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If you want to disable control via the PC keyboard, you can add NO_KBD=1
to the 'make' call.
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Adding "DEBUG_OSD=1" will use the PC screen (or current window)
to display texts instead of the DVB card's on-screen display
interface. These modes are useful when testing new menus if you
only have a remote connection to the VDR (which, in my case, is
located in the living room and has neither a monitor nor a keyboard).
If your video directory will be on a VFAT partition, add the compile
time switch
VFAT=1
to the 'make' command.
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When running, the 'vdr' program writes status information into the
system log file (/var/log/messages). You may want to watch these
messages (tail -f /var/log/mesages) to see if there are any problems.
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The program can be controlled via a network connection to its SVDRP
port ("Simple Video Disk Recorder Protocol"). By default, it listens
on port 2001 (use the --port=PORT option to change this). For details
about the SVDRP syntax see the source file 'svdrp.c'.
WARNING: DUE TO THE OPEN SVDRP PORT THIS PROGRAM MAY CONSTITUTE A
======= POTENTIAL SECURITY HAZARD! IF YOU ARE NOT RUNNING VDR IN
A CONTROLLED ENVIRONMENT, YOU MAY WANT TO DISABLE SVDRP
BY USING '--port=0'!
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The file 'svdrphosts.conf' can be used to define which hosts are allowed
to access the SVDRP port. By default only localhost (127.0.0.1) is granted
access. If you want to give other hosts access to your SVDRP port you need to
add their IP numbers to 'svdrphosts.conf'.
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If the program shall run as a daemon, use the --daemon option. This
will completely detach it from the terminal and will continue as a
background process.
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When starting the program through an entry in /etc/inittab, use the --terminal
option to set the controlling terminal, as in
vdr:123:respawn:/usr/local/bin/vdr --terminal=/dev/tty8 -w 60
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See the man page vdr(1) for complete information about all command line options.
Locale
------
When presenting the list of recordings, VDR sorts the entries according to
the current "locale" settings. This makes sure that special characters (like
the German "umlauts") appear at the expected positions. In order to benefit
from this you may have to set the locale environment variable, for instance
export LANG=de_DE
for a German locale. If you don't want this to result in German error messages
in the log file, it is sufficient to just set
export LC_COLLATE=de_DE
which only influences the way strings are sorted and leaves error messages
in English.
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Automatic restart in case of hangups:
-------------------------------------
If you run VDR using the 'runvdr' shell script it will use the built-in
watchdog timer to restart the program in case something happens that
causes a program hangup. If you change the command line options for the
call to the VDR program, be sure to NOT use the '-d' option! Otherwise
VDR will go into 'deamon' mode and the initial program call will return
immediately!
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Automatic shutdown:
-------------------
If you define a shutdown command via the '-s' command line option, VDR
will call the given command if there is currently no recording or replay
active, the user has been inactive for at least MinUserInactivity minutes
and the next timer event is at least MinEventTimeout minutes in the future
(see the Setup parameters in MANUAL).
The command given in the '-s' option will be called with five parameters.
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The first one is the time (in UTC) of the next timer event (as a time_t
type number), and the second one is the number of seconds from the current
time until the next timer event. Your program can choose which one to use
for programming some sort of hardware device that makes sure the computer
will be restarted in time before the next timer event. Your program must
also initiate the actual shutdown procedure of the computer. After this
your program should return to VDR. VDR will not automatically exit after
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calling the shutdown program, but will rather continue normally until it
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receives a SIGTERM when the computer is actually shut down. So in case
the shutdown fails, or the shutdown program for some reason decides not to
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perform a shutdown, VDR will stay up and running and will call the shutdown
program again after another MinUserInactivity minutes.
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If there are currently no timers active, both parameters will be '0'.
In that case the program shall not set the hardware for automatic restart
and only perform the system shutdown. A program that uses the second parameter
to set the hardware for restart must therefore also check whether the first
parameter is '0'.
The third parameter contains the number of the channel that will be recorded
by the next timer (or 0 if no timer is present), and the fourth parameter
contains the file name of the recording as defined in the timer (or an empty
string if no timer is present). These can be used by the shutdown program to
show that information on some display interface etc.
The fifth parameter indicates the reason why the shutdown was requested.
'0' means this is an automatic shutdown due to some timeout, while '1' means
that this is a user requested shutdown (resulting from pressing the "Power"
key). The shutdown program may use this information to decide whether or
not to actually perform the system shutdown.
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If a timer is currently recording, the parameters will reflect the start
time of that timer. This means that the first parameter will be a time in
the past, and the second parameter will be a negative number. This only
happens if the user presses the "Power" key while a timer is currently
recording.
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Before the shutdown program is called, the user will be prompted to inform
him that the system is about to shut down. If any remote control key is
pressed while this prompt is visible, the shutdown will be cancelled (and
tried again after another MinUserInactivity minutes). The shutdown prompt
will be displayed for 5 minutes, which should be enough time for the user
to react.
A sample shell script to be used with the '-s' option might look like this:
#!/bin/sh
setRTCwakeup $(($1 - 300))
sudo halt
Here 'setRTCwakeup' would be some program that uses the first parameter
(which is the absolute time of the next timer event) to set the Real Time
Clock so that it wakes up the computer 5 minutes (i.e. 300 seconds) before
that event. The 'sudo halt' command then shuts down the computer.
You will have to substitute both commands with whatever applies to your
particular hard- and software environment.
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If the '-s' option is present, the VDR machine can be turned off by pressing
the "Power" key on the remote control.
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Executing commands before and after a recording:
------------------------------------------------
You can use the '-r' option to define a program or script that gets called
before and after a recording is performed, and after an editing process
has finished.
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The program will be called with two string parameters. The first parameter
is one of
before if this is *before* a recording starts
after if this is *after* a recording has finished
edited if this is after a recording has been *edited*
and the second parameter contains the full name of the recording's
directory (which may not yet exists at that moment in the "before" case).
In the "edited" case it will be the name of the edited version.
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Within this program you can do anything you would like to do before and/or
after a recording or after an editing process. However, the program must return
as soon as possible, because otherwise it will block further execution of VDR.
Be especially careful to make sure the program returns before the watchdog
timeout you may have set up with the '-w' option! If the operation you want to
perform will take longer, you will have to run it as a background job.
An example script for use with the '-r' option could look like this:
#!/bin/sh
case "$1" in
before)
echo "Before recording $2"
;;
after)
echo "After recording $2"
;;
edited)
echo "Edited recording $2"
;;
*)
echo "ERROR: unknown state: $1"
;;
esac
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Command line options:
---------------------
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Use "vdr --help" for a list of available command line options.
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Replaying Dolby Digital audio:
------------------------------
To replay Dolby Digital audio you need a program that reads the DD data
from stdin and processes it in a way suitable for your audio hardware.
This program must be given to VDR with the '-a' option, as in
vdr -a ac3play
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The video data directory:
-------------------------
All recordings are written into directories below "/video". Please
make sure this directory exists, and that the user who runs the 'vdr'
program has read and write access to that directory.
If you prefer a different location for your video files, you can use
the '-v' option to change that. Please make sure that the directory
name you use with '-v' is a clean and absolute path name (no '..' or
multiple slashes).
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Note that the file system need not be 64-bit proof, since the 'vdr'
program splits video files into chunks of about 1GB. You should use
a disk with several gigabytes of free space. One GB can store roughly
half an hour of video data.
If you have more than one disk and don't want to combine them to form
one large logical volume, you can set up several video directories as
mount points for these disks. All of these directories must have the
same basic name and must end with a numeric part, which starts at 0 for
the main directory and has increasing values for the rest of the
directories. For example
/video0
/video1
/video2
would be a setup with three directories. You can use more than one
numeric digit, and the directories need not be directly under '/':
/mnt/MyVideos/vdr.00
/mnt/MyVideos/vdr.01
/mnt/MyVideos/vdr.02
...
/mnt/MyVideos/vdr.11
would set up twelve disks (wow, what a machine that would be!).
To use such a multi directory setup, you need to add the '-v' option
with the name of the basic directory when running 'vdr':
vdr -v /video0
Note that you should not copy any non-VDR files into the /videoX directories,
since this might cause the watchdog timer to expire when VDR cleans up those
directories and there is a large number of files and/or subdirectories in
there.
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Configuration files:
--------------------
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There are several configuration files that hold information about
channels, remote control keys, timers etc. By default these files are
assumed to be located in the video directory, but a different directory
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can be used with the '-c' option. For starters just copy all *.conf files from
the VDR directory into your video directory.
The configuration files can be edited with any text editor, or will be written
by the 'vdr' program if any changes are made inside the on-screen menus.
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Take a look at man page vdr(5) for information about the file formats.
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The files that come with this package contain the author's selections,
so please make sure you adapt these to your personal taste. Also make sure
that the channels defined in 'channels.conf' are correct before attempting
to record anything. Channel parameters may vary and not all of the channels
listed in the default 'channels.conf' file have been verified by the author.
As a starting point you can copy the 'channels.conf' file that comes with the
VDR archive into your video directory (or into your config directory,
respectively, in case you have redirected it with the -c option).
Setting up DiSEqC:
------------------
If you are using a DVB-S card with a satellite equipment that needs to be
accessed using DiSEqC, you have to go to the "Setup" menu and set the "DiSEqC"
parameter to "on". You also need to set up the file 'diseqc.conf' to properly
access your DiSEqC equipment (see man vdr(5) for details).
Running VDR with DVB-C (cable) or DVB-T (terrestrial):
------------------------------------------------------
VDR automatically recognizes if the DVB card in use is a cable or a
terrestrial card. The only thing that needs to be different when using digital
cable or terrestrial reception is the 'channels.conf' file. The distribution
archive contains a default 'channels.conf.cable' and 'channels.conf.terr',
respectively, which users of such cards can rename or copy to 'channels.conf'
in order to receive digital cable or terrestrial channels. The format of these
files is mostly the same as for satellite channels, however, some fields have
different or extended meanings (see man vdr(5) for details).
You can even use a mixture of DVB-S, DVB-C and DVB-T cards in the same system.
All you need to do is to put all the channel definitions into one big
'channels.conf' file. VDR will automatically know which channels can be
received with which card(s) by evaluating the 'source' parameter.
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Learning the remote control keys:
---------------------------------
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There is no default 'remote.conf' file, so you will have to go through a "teach-in"
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session that allows the program to learn your remote control codes.
It will first attempt to determine the basic data transfer mode and
timing of your remote control unit, and then will ask you to press one
key after the other so that it can learn the various key codes. You will
at least need to provide an "Up" and a "Down" key, so that you can switch
channels. The rest of the key definitions is optional, but the more keys
you define, the more you will be able to navigate through the menus and
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control recording/replaying. The program uses only a very small number
of keys which have multiple meanings in the various modes (see MANUAL
for a detailed description).
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The recommended PC key assignments are:
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Up, Down, Left, Right Crsr keys in numeric block
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Menu 'Home' in numeric block
Ok 'Enter'
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Back 'End' in numeric block
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Red, Green, Yellow, Blue 'F1'..'F4'
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0..9 '0'..'9' in top row
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Power 'P'
Volume+/- '+', '-'
Mute 'm'
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If you prefer different key assignments, or if the default doesn't work for
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your keyboard, simply delete the file 'remote.conf' and restart 'vdr' to get
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into learning mode.
Generating source code documentation:
-------------------------------------
You can do a 'make srcdoc' to generate source code documentation using the
Doxygen tool. To do so you need the Doxygen package from http://www.doxygen.src
and the Graphviz package from http://www.research.att.com/sw/tools/graphviz.
After installing these two packages you can do 'make srcdoc' and then use your
HTML browser to read srcdoc/html/index.html.