Howto play DVDs with help of VDR

[Robert Schneider/MUC1/Lotus <Robert.Schneider@lotus.com>]

Hi,

playing DVDs with the same ease as using VDR to record and play movies was
one thing I had to have as soon as possible. For that reason, I did a very,
Very, VERY dirty implentation of using Matjaz Thaler's dvdplayer for the
DVB-s card.

Apologies first:

I'm currently doing a lot of stuff to the VDR source and therefore, cannot
send diffs that allow you to patch, but I thought this is an interesting
feature that some of you may want to have sooner than I can come up with
the other things.

The basic concept is:

Have a menu item in VDR that closes the video and vbi device, start  Matjaz
Thaler's dvdplayer and once the dvdplayer comes back, reopen the video and
vbi device.

Caution:

If you have timers programmed during DVD playback, they are lost.

Requirements:

     dvdplayer software from http://www2.arnes.si/~mthale1/index.html
     tstdvd from the Livid source tree at http://www.linuxvideo.org

So what did I do:

Let's start with the dvdplayer

1. Get the dvdplayer sources from http://www2.arnes.si/~mthale1/index.html
2. In remote.c, you have to add a way to gracefully exit the dvdplayer. I
did it by adding

   else if(!strcmp(ir.command,
MAKE_A_NEW_DEFINE_FOR_YOUR_DESIRED_EXIT_BUTTON_IN_REMOTE.H))
    {
     close(dev);
     sleep(1);  // if omitted, VDR may not be able to open the video when
one of
               // the dvdplayer processes does not exit fast enough
      break;
    }

at the end of the while loop that retrieves IR codes.

Take the following shell script and put it in the dvdplayer directory

#!/bin/sh
cd /root/dvdplayer
umount /dvd
tstdvd /dev/dvd
mount /dvd
for i in 0 1 2; do
   f=/dvd/video_ts/vts_01_$i.vob
   test -f $f && break
done
tstdvd /dev/dvd $f
dvdplayer -a 1 -c -r -f $f
umount /dvd

Now the changes for VDR

Only menu.c, eit.c and eit.h is involved

In menu.c:

add #include "eit.h"
in Function cMenuMain::cMenuMain(bool Replaying):cOsdMenu("Main")
replace SetHelp("Record");
with SetHelp("Record", "DVD");

in Function eOSState cMenuMain::ProcessKey(eKeys Key)
add after the case kRed block

        case kGreen:     cDvbApi::Cleanup();
                    EIT.Close();
                    system("/root/dvdplayer/d"); // replace path with your
favourite ones
                    if (!cDvbApi::Init())
                              abort();
                    EIT.Open();
                    state = osEnd;
                    break;

In eit.c

Replace:

cEIT::cEIT()
{
     cszBitFilter = "/dev/vbi";
     if((fsvbi = open(cszBitFilter, O_RDWR))<0)
     {
          fsvbi = 0;
          esyslog(LOG_ERR, "Failed to open DVB bitfilter device: %s",
cszBitFilter);
          return;
     }
}

cEIT::~cEIT()
{
     if (fsvbi != 0)
          close(fsvbi);
     fsvbi = 0;
}


with

cEIT::cEIT()
{
     Open();
}

cEIT::~cEIT()
{
     Close();
}

/**  */
bool cEIT::Open()
{
     cszBitFilter = "/dev/vbi";
     if((fsvbi = open(cszBitFilter, O_RDWR))<0)
     {
          fsvbi = 0;
          cerr << "Failed to open DVB bitfilter device: " << cszBitFilter
<< endl;
          return false;
     }
     return true;
}

/**  */
bool cEIT::Close()
{
     if (fsvbi != 0)
          close(fsvbi);
     fsvbi = 0;

     return true;
}

and add

  bool Close();
  bool Open();

to the public section in eit.h