Posted
Comments None

The Problem

I recently updated one of my systems from Mint 17 to Mint 19.1. Mint 17 is based on Ubuntu 14.04 and Mint 19 is Ubuntu 18.04. I run MythTV front-end and Kodi on the system, controlled with a Windows Media Center IR remote using LIRC.

Out of the box, the MCE worked with minimal functionality (cursor keys only), and the LIRC configuration utility is broken.

I tried a few things, including trying to use the built-in support for the USB MCE remotes (with a combination of creating a custom keymap file then running ir-keytable -c -w /etc/rc_keymaps/rc6_mce), and although that worked fine for Kodi, I really wanted LIRC to be working again so that I could use irexec to launch using the WMC Green Button, as well as being able to use my MythTV mapping (even though most of my PVR needs are catered for by Kodi now).

The Solution

LIRC Configuration

Out of the box, LIRC 0.10 on Ubuntu 18.04 uses devinput. This probably works for simple needs to get an out of the box configuration that works, but it's better to switch to native device support to avoid some annoying quirks of devinput mode (in particular, repeated/bouncing keys). The config tools for LIRC appear to be broken in Ubuntu 18.04, but for MCE remotes, this doesn't matter because the configuration can be done quite easily with a text editor.

Change this in /etc/lirc/lirc_options.conf by changing the driver line from "devinput" to "default". Also specify the specific device. For example:

[lircd]
nodaemon        = False
driver          = default
device          = /dev/lirc0
output          = /var/run/lirc/lircd
pidfile         = /var/run/lirc/lircd.pid
plugindir       = /usr/lib/x86_64-linux-gnu/lirc/plugins
permission      = 666
allow-simulate  = No
repeat-max      = 600

[lircmd]
uinput          = False
nodaemon        = False

Pointing Kodi to the correct location

Note that Kodi looks for LIRC at /dev/lircd, not /var/run/lirc/lircd as default in Ubuntu 18.04, but if you change that in lirc_options.conf then Kodi will work but none of the other tools such as irw or irexec will. Therefore, it's easiest to simply create a symlink:

ln -s /var/run/lirc/lircd /dev/lircd

This will only survive until the system is rebooted, so you might want to automate the creation of this symlink using cron.

Create the MCE USB mapping file

Create a config file for mceusb at /etc/lirc/lircd.conf.d/mceusb.conf with the following contents:

#
# brand:                        HP/Philips/Microsoft/Other
# model no. of remote control:  Media Center Edition remote
# devices being controlled by this remote: HP Slimline S3100y and a
# myriad of devices with Media Center Edition receivers
#
# RC-6 config file
#
# source: http://home.hccnet.nl/m.majoor/projects_remote_control.htm
#         http://home.hccnet.nl/m.majoor/pronto.pdf
#
# used by: Philips
#
#########
#
# Philips Media Center Edition remote control
# For use with the USB MCE ir receiver
#
# Dan Conti  dconti|acm.wwu.edu
#
# Updated with codes for MCE 2005 Remote additional buttons
# *, #, Teletext, Red, Green, Yellow & Blue Buttons
# Note: TV power button transmits no code until programmed.
# Updated 12th September 2005
# Graham Auld - mce|graham.auld.me.uk
#
# Radio, Print, RecTV are only available on the HP Media Center remote control
#
#
# Updated with codes for MCE 2007 Remote additional buttons
# Visualization, Aspect, SlideShow, Eject
# Note:
# Renamed some buttons: DVD->DVDMenu, More->MoreInfo, Star->Asterisk, Hash->Pound
# Note:
# Blue, Yellow, Green, Red, and Teletext buttons do not exist on the HP remote

begin remote

  name        mceusb
  bits                 16
  flags  RC6|CONST_LENGTH
  eps                  30
  aeps                100

  header       2667   889
  one           444   444
  zero          444   444
  pre_data_bits        21
  pre_data        0x37FF0
  gap              105000
  toggle_bit           22
  rc6_mask    0x100000000

      begin codes

#seen on HP Pavilion dv3t remote  --Tim Mann, 3 Nov 2009
        Media         0x00007b7f
        PlayPause     0x00007b91

#unused by HP remote
        KEY_BLUE              0x00007ba1
        KEY_YELLOW            0x00007ba2
        KEY_GREEN             0x00007ba3
        KEY_RED       0x00007ba4
        Teletext      0x00007ba5

#ba6 - bae unused
        BA6           0x00007ba6
        BA7           0x00007ba7
        BA8           0x00007ba8
        BA9           0x00007ba9
        BAA           0x00007baa
        BAB           0x00007bab
        BAC           0x00007bac
        BAD           0x00007bad
        BAE           0x00007bae

        KEY_RADIO         0x00007baf
        Print         0x00007bb1

#bb2 - bb4 unused
        BB2           0x00007bb2
        BB3           0x00007bb3
        BB4           0x00007bb4

        KEY_VIDEO        0x00007bb5

        Pictures      0x00007bb6
        RecTV         0x00007bb7
        KEY_AUDIO         0x00007bb8
        KEY_TV            0x00007bb9

#bba - bbf unused
        BBA           0x00007bba
        BBB           0x00007bbb
        BBC           0x00007bbc
        BBD           0x00007bbd
        BBE           0x00007bbe
        BBF           0x00007bbf
#bc1 - bca unused
        BC1           0x00007bc1
        BC2           0x00007bc2
        BC3           0x00007bc3
        BC4           0x00007bc4
        BC5           0x00007bc5
        BC6           0x00007bc6
        BC7           0x00007bc7
        BC8           0x00007bc8
        BC9           0x00007bc9
        BCA           0x00007bca

        KEY_EJECTCD         0x00007bcb
        SlideShow     0x00007bcc
        Visualization 0x00007bcd

#bce - bcf unused
        BCE           0x00007bce
        BCF           0x00007bcf
#bd1 - bd7 unused
        BD1           0x00007bd1
        BD2           0x00007bd2
        BD3           0x00007bd3
        BD4           0x00007bd4
        BD5           0x00007bd5
        BD6           0x00007bd6
        BD7           0x00007bd7

        Aspect        0x00007bd8
        Guide         0x00007bd9
        LiveTV        0x00007bda
        KEY_DVD           0x00007bdb
#NoGap
        KEY_BACK          0x00007bdc
        KEY_OK            0x00007bdd
        KEY_RIGHT         0x00007bde
        KEY_LEFT          0x00007bdf
        KEY_DOWN          0x00007be0
        KEY_UP            0x00007be1
#NoGap
        Star          0x00007be2
        Hash          0x00007be3
#NoGap
        KEY_AGAIN        0x00007be4
        KEY_NEXT          0x00007be5
        KEY_STOP          0x00007be6
        KEY_PAUSE         0x00007be7
        KEY_RECORD        0x00007be8
        KEY_PLAY          0x00007be9
        KEY_REWIND        0x00007bea
        KEY_FORWARD       0x00007beb
#NoGap
        KEY_CHANNELDOWN      0x00007bec
        KEY_CHANNELUP        0x00007bed
        KEY_VOLUMEDOWN       0x00007bee
        KEY_VOLUMEUP         0x00007bef
#NoGap
        More          0x00007bf0
        KEY_MUTE          0x00007bf1
        KEY_HOME          0x00007bf2
        KEY_POWER         0x00007bf3
#NoGap
        KEY_ENTER         0x00007bf4
        KEY_CLEAR         0x00007bf5
#NoGap
        KEY_9          0x00007bf6
        KEY_8         0x00007bf7
        KEY_7         0x00007bf8
        KEY_6           0x00007bf9
        KEY_5          0x00007bfa
        KEY_4          0x00007bfb
        KEY_3         0x00007bfc
        KEY_2           0x00007bfd
        KEY_1           0x00007bfe
        KEY_0          0x00007bff
      end codes

end remote
#
# this config file was automatically generated
# using lirc-0.8.4a(default) on Mon Feb 23 23:55:04 2009
#
# contributed by
#
# brand:                       Hauppauge
# model no. of remote control:
# devices being controlled by this remote: PVR-150 Remote (MCE kit)
# SMK dongle 0609:031d
#

begin remote

  name  mceusb_hauppauge
  bits           13
  flags RC6|CONST_LENGTH
  eps            30
  aeps          100

  header       2674   870
  one           455   427
  zero          455   427
  pre_data_bits   24
  pre_data       0x1BFF82
  gap          106288
  min_repeat      1
  toggle_bit_mask 0x8000
  rc6_mask    0x100000000

      begin codes
          TV                       0x1BB9
          Music                    0x1BB8
          Pictures                 0x1BB6
          Videos                   0x1BB5
          Power                    0x1BF3
          Stop                     0x1BE6
          Record                   0x1BE8
          Pause                    0x1BE7
          Play                     0x1BE9
          Rewind                   0x1BEA
          Foward                   0x1BEB
          Replay                   0x1BE4
          Skip                     0x1BE5
          Back                     0x1BDC
          More                     0x1BF0
          Up                       0x1BE1
          Left                     0x1BDF
          Right                    0x1BDE
          OK                       0x1BDD
          Down                     0x1BE0
          VolUp                    0x1BEF
          VolDown                  0x1BEE
          Home                     0x1BF2
          ChanDown                 0x1BED
          ChanUp                   0x1BEC
          Mute                     0x1BF1
          RecTV                    0x1BB7
          Guide                    0x1BD9
          LiveTV                   0x1BDA
          DVD                      0x1BDB
          One                      0x1BFE
          Two                      0x1BFD
          Three                    0x1BFC
          Four                     0x1BFB
          Five                     0x1BFA
          Six                      0x1BF9
          Seven                    0x1BF8
          Eight                    0x1BF7
          Nine                     0x1BF6
          Star                     0x1BE2
          Zero                     0x1BFF
          Hash                     0x1BE3
          Clear                    0x1BF5
          Enter                    0x1BF4
      end codes

end remote

#
# this config file was automatically generated
# using lirc-0.8.4a(default) on Tue Mar 10 19:27:09 2009
#
# contributed by
#
# brand:  SIIG Vista MCE remote
# model no. of remote control:
# devices being controlled by this remote:
#

begin remote

  name  vista_mce
  bits           16
  flags RC6
  eps            30
  aeps          100

  header       2654   889
  one           427   427
  zero          427   427
  pre_data_bits   21
  pre_data       0x37FF0
  gap          69850
  toggle_bit_mask 0x8000
  rc6_mask    0x100000000

      begin codes
          Power                    0xEBF3
          Pictures                 0x6BB6
          Radio                    0xEBAF
          Videos                   0x6BB5
          Music                    0xEBB8
          Rec                      0x6BE8
          Pause                    0xEBE7
          Stop                     0x6BE6
          Skipback                 0xEBE4
          Play                     0x6BE9
          Skipfwd                  0xEBE5
          Rwd                      0x6BEA
          Fwd                      0xEBEB
          Start                    0x6BF2
          Back                     0xEBDC
          More                     0x6BF0
          Volup                    0xEBEF
          Voldown                  0x6BEE
          Chup                     0xEBED
          Chdown                   0x6BEC
          Up                       0xEBE1
          Down                     0x6BE0
          Left                     0xEBDF
          Right                    0x6BDE
          Mute                     0xEBF1
          Rectv                    0x6BB7
          Guide                    0xEBD9
          Livetv                   0x6BDA
          Dvdmenu                  0xEBDB
          1                        0x6BFE
          2                        0xEBFD
          3                        0x6BFC
          4                        0xEBFB
          5                        0x6BFA
          6                        0xEBF9
          7                        0x6BF8
          8                        0xEBF7
          9                        0x6BF6
          *                        0xEBE2
          0                        0x6BFF
          #                        0xEBE3
          Clear                    0x6BF5
          Enter                    0xEBF4
      end codes

end remote

Testing if the remote works

Restart LIRCd using systemctl restart lircd and then check with systemctl status lircd and you should see output such as this:

Dec 23 15:19:29 server1 lircd-0.10.0[22534]: Notice: Current driver: default
Dec 23 15:19:29 server1 lircd-0.10.0[22534]: Notice: Driver API version: 3
Dec 23 15:19:29 server1 lircd-0.10.0[22534]: Notice: Driver  version: 0.10.0
Dec 23 15:19:29 server1 lircd-0.10.0[22534]: Notice: Driver  info: See file:///usr/share/doc/lirc/plugindocs/default.
Dec 23 15:19:29 server1 lircd-0.10.0[22534]: Info: lircd:  Opening log, level: Info
Dec 23 15:19:29 server1 lircd-0.10.0[22534]: Warning: Running as root
Dec 23 15:19:29 server1 lircd-0.10.0[22534]: Info: Using remote: mceusb.
Dec 23 15:19:29 server1 lircd-0.10.0[22534]: Info: Using remote: mceusb_hauppauge.                                   
Dec 23 15:19:29 server1 lircd-0.10.0[22534]: Info: Using remote: vista_mce.
Dec 23 15:19:29 server1 lircd-0.10.0[22534]: Notice: lircd(default) ready, using /var/run/lirc/lircd 

At this point you should be able to use irw to test the remote using LIRC. Pressing buttons on the remote should result in output whilst irw is running.

000000037ff07bf2 00 KEY_HOME mceusb
000000037ff07bdf 00 KEY_LEFT mceusb
000000037ff07be0 00 KEY_DOWN mceusb
000000037ff07bde 00 KEY_RIGHT mceusb
000000037ff07bdd 00 KEY_OK mceusb

Note how the output from irw now includes "mceusb" instead of "devinput" and the key names match what they should be for the MCE remote.

Making Kodi work with LIRC

Finally, I created the .lircrc file in my home directory. I'm not going to reproduce the entire contents here, and this is standard LIRC stuff at this point, so here's a snippet (note that I call Kodi via a bash script in order to handle the case where it's already running - included below, but you can call /usr/bin/kodi directly if that doesn't bother you):

# Launch Kodi
begin
 prog = irexec
 button = KEY_HOME
 #config = /usr/bin/kodi &
 config = /home/kodi/startkodi.sh &
end

# MythTV-specific mapping
begin
 prog = mythtv
 button = LiveTV
 config = t
end

begin
 prog = mythtv
 button = RecTV
 config = w
end

begin
 prog = mythtv
 button = Media
 config = M
end

....etc

The Kodi launch script (to avoid launching a duplicate instance, as well as forcing exposing ALSA interfaces for audio) is as follows:


#!/bin/bash

if pidof -x "kodi.bin" >/dev/null; then
        exit
else
        AE_SINK=ALSA kodi &
fi

Conclusion

With all of this complete, the behaviour of the remote is now as follows:

  • Pressing the "green button" on the remote will launch Kodi
  • Pressing the "green button" when Kodi is already running, will not launch a second instance, but instead, the designation of the green button in Kodi's own mapping is used (i.e. return to home page, or show menu during playback)
  • Pressing any of the other buttons on the MCE remote will work inside Kodi using their pre-defined configuration, or you can optionally override them with Lircmap.xml.

This information was correct as of December 2018, using Linux Mint 19.1, Kodi 17.6 and LIRC 0.10.

Author
Categories ,

Posted
Comments None

You may want to disable DXVA2 hardware acceleration for MPEG2 video in Windows Media Center, for example if the hardware decoding provided by your graphics card is unstable when it encounters discontinuities in the video stream (e.g. interference from passing vehicles with OTA broadcasts).

In the registry, go to
HKEY_LOCAL_MACHINE\Software\Microsoft\Scrunch\CodecPack\MSDVD\
If those keys don’t already exist, create them.

Next, create a DWORD within MSDVD called DXVA2, and set its value to 0.

Author
Categories

Posted
Comments None

MythWeb included with MythTV allows you to download records from the web browser, by using the Direct Download link on the recording details or recording list.

By default, these files are named in the form of “Title – 3×01 – Subtitle.mpg”. This is fine if the EPG data included a subtitle field or season/episode number to differentiate episode numbers or episode titles, but that is not always the case.

I wanted to add the broadcast/recording date to the downloaded filename, and I could not find any way of doing so in the settings, so I made the following modification to the code.

The file to modify is stream_raw.pl, and on Ubuntu 14.04 and Mint 17, this is located at /usr/share/mythtv/mythweb/modules/stream

Find the block of code which is prefixed by “#Download filename” (around line 71) in 0.27


# Download filename
    my $name = $basename;
    if ($name =~ /^\d+_\d+\.\w+$/) {
        if ($title =~ /\w/) {
            $name = $title;
            $name .= sprintf(" - %dx%02d", $season, $episode) if $season and $episode;
            if ($subtitle =~ /\w/) {
                $name .= " - $subtitle";
            }
        }
        $name .= $suffix;
    }


The recording start time is held in the $starttime variable, which is an epoch timestamp. Convert this to a human-readable date with strftime, and then append to $name, before the suffix (i.e. MPG) is added.

The block of code will now look like this:


# Download filename
    my $name = $basename;
    if ($name =~ /^\d+_\d+\.\w+$/) {
        if ($title =~ /\w/) {
            $name = $title;
            $name .= sprintf(" - %dx%02d", $season, $episode) if $season and $episode;
            if ($subtitle =~ /\w/) {
                $name .= " - $subtitle";
            }
			use Time::Piece;
			my $timestring = localtime($starttime)->strftime('%Y-%m-%d_%H:%M:%S');
			$name .= "_$timestring";
        }
        $name .= $suffix;
    }

Author
Categories

← Older Newer →