WDTV Tools

June 14, 2009

event-osd r162 Released

Filed under: event-osd, osd — Tags: , , , , , — Elmar Weber @ 16:41

A new version of event-osd has been released. event-osd allows you to modify the OSD of the Western Digital TV HD on the fly when the user navigates through his media collection.

The r162 version introduces an extended event config file format that supports multiple events and also adds support for new features. The most important feature is the ability to change the working directory of the script to the current directory of the OSD. This solves as a workaround for paths with special characters because the shell of the WDTV firmwares is not able to deal with them directly. You can specify that the current working directory (cwd) is changed by using a config file like the following one:



More changes in detail are:

  • added: option to execute script in the newly changed directory. This is a workaround to eliminate problems with special characters in the current path. See documentation for details. Thanks to LaurentG for suggesting this.
  • added: option to specify several events in one file, see documentation for details
  • added: support for future extensions in the event file format
  • fixed: OSD working copy was not cleaned on restart

The new application image is available for download at http://sourceforge.net/project/downloading.php?group_id=261153&filename=event-osd-r162-wdtv.zip.

All event-osd files can be found at http://sourceforge.net/project/showfiles.php?group_id=261153&package_id=324606. The documentation is in the event-osd wiki at http://sourceforge.net/apps/trac/wdtvtools/wiki/event-osd.

event-osd is part of the WDTV Tools project. For more tools and information take a look at the WDTV Tools homepage: http://wdtv.elmarweber.org.

June 11, 2009

Some OSD Mods

Filed under: applications, event-osd, osd — Tags: , , , , , — Elmar Weber @ 04:36

Take a look over at the WDTV Forum, there is some serious development going on. LaurentG and juliojs use event-osd to skin your folders according to your own templates and data. Thanks to LaurentG’s great idea to use the folders as an options menu a new world of possibilities opens up. For example is ninja76 working on an integration of torrents into the UI and realtebo integrates file downloads via the IRC network.

I can’t wait to see more mods that bring the little black one to shine even more.

June 7, 2009

Tutorial: How to Create Application Images (app.bin) Files

Filed under: applications, tutorials — Tags: , , , , — Elmar Weber @ 21:32

The question popped up a few times in the forums, so I created a tutorial on how to do it: http://sourceforge.net/apps/trac/wdtvtools/wiki/Tutorials/CreateApplicationImage.

The assemble-app-bin.sh script that is introduced in the end is also available in the SVN repository via

# svn co https://wdtvtools.svn.sourceforge.net/svnroot/wdtvtools/trunk/appbinutils

June 5, 2009

wiidtv – Using the Wiimote With the WDTV

Filed under: osd, wiidtv — Tags: , , , , , , , — Elmar Weber @ 01:42

Just a quick hacked demo of the Wiimote controlling the Western Digital TV HD. The more the Wiimote is rolled the faster it scrolls. But it’s currently not really usable because of the rather poor performance of the WDTV GUI when the scrolling gets faster.

If you want to try this here is a quick howto (you should know how to handle yourself with telnet or SSH on the WDTV):

  1. You need
    • eiri application image
    • optware (opt.bin)
    • USB bluetooth adapter that is supported by Linux (if you have one it probably is)
  2. You need to install some packages on your WDTV for bluetooth support – and because some people reported problems with the busybox tar you should also install the GNU tar:

    # ipkg install bluez-utils tar
  3. Download the bluetooth kernel modules and install them (you need to be in a directory that is writeable, so when using WDLXTV you should a directory in /opt/):

    # wget http://wdtv.elmarweber.org/temp/bt.tar.gz
    # tar xvfz bt.tar.gz
    # sh insert.sh

    If everything works you should get no messages, if you get a notice that firmware_class is already loaded that’s OK, but no other message should appear.
  4. Next must setup your bluetooth adapter. If not already done, first connect it to the WDTV. Now you should see it with # hciconfig -a if no device called hci0 is listed there was a problem with the bluetooth adapter. Take a look at dmesg | tail do get possible error message.

    Next you can bring the bluetooth adapter into play with # hciconfig hci0 up. To check if everything works you can do a quick # hcitool scan to show any bluetooth devices in your vicinity. Even if you don’t have any active bluetooth devices you can assume that everything works when you don’t get any error messages.

  5. The last step before using the Wiimote with your WDTV you need the wiidtv application and install it.

    # wget http://wdtv.elmarweber.org/temp/wiidtv.tar.gz
    # tar xvfz wiidtv.tar.gz
  6. Now you can put it all together by starting the wiidtv application and connecting your Wiimote. Start wiidtv with

    # sh wiidtv.sh

    and then you must set your Wiimote into discovery mode by pressing the 1 and 2 buttons at the same time. The wiidtv program will connect with the first Wiimote it finds and use it. You have 10 seconds to do this, if there is no Wiimote found until then the program exits, so have your Wiimote ready and near your WDTV. In case your Wiimote was detected you’ll feel a short vibration from it, this is the signal that wiidtv is connected to it.

    Control is very limited, you can scroll up/down by tilting / rolling the device (simulates up down remote command, if you have thumbnails enabled you’ll be out of luck). With the B button you can enter a directory or play a file and with A you return to the previous view. Finally, you can disconnect the Wiimote by pressing the Power button for a few seconds.

I’ll release an application image ASAP. As usual the sources are in the SVN if anyone wants to give it a hack.

June 4, 2009

Preview Release of eiri: A Command Line and Network Interface to the Infrared Port

Filed under: eiri — Tags: , , , , , , — Elmar Weber @ 01:03

I had some time to finish the IR adapter I’ve been working on. A preview release of eiri (extended infrared interface) is available at http://sourceforge.net/project/downloading.php?group_id=261153&filename=eiri-r128-wdtv.zip.

eiri is an improved alternative to irset. It allows you to send IR commands to the WDTV GUI from the command line, thus enabling third party applications like web pages or SSH to control the WDTV GUI. Compared to irset it fixes some bugs, namely the 100% CPU utilization and it supported repeated keys (so you can hold down UP/DOWN and it is executed again without the need to press it again). Furthermore it adds a network mode that can be used to control the WDTV from a remote device over the network. The rest of this article first describes the command line interface and then the network mode.

The command line program is called irsend or eiric and can be used to send an arbitrary sequence of commands where a command can be one of POWER, HOME, UP, LEFT, ENTER, RIGHT, DOWN, BACK, STOP, OPTION, REWIND, PLAY, PAUSE, FORWARD, PREVIOUS, NEXT, SEARCH, EJECT or a number larger than 0 that is interpreted as a wait in milliseconds. For example

# irsend UP 1000 ENTER

will emulate an UP command from the remote, then wait 1000 milliseconds (1 second) and finally send the ENTER command. It is the same as when you press the UP and ENTER keys consecutive on the remote with a delay of one second. More complex combinations are possible but always remember to put a wait between two commands because the WDTV GUI won’t be able to process most commands if they are executed without delay.

A second feature of the preview release of eiri is the network mode. the eiri daemon (eirid) starts a TCP server on port 14247 that listens for connections from clients. When you connect your client two things happen and can be done

  1. You can send command sequences in the same way you can do with the irsend command line program. The communication is done in ascii mode (No UTF-8 or other encoding) and each line must be terminated with a n character or otherwise no commands are executed. So you would send the string “UP 1000 ENTERn” to achieve the same as the irsend call done above.
  2. You are notified about any commands received from the real remote. For each command a line is send to your program in the form of 4177951108:HOME:0 where the first parameter is the IR code, the second one the alias and the third parameter the repeat count. Repeat count comes into play when the user holds a key pressed. It is increased by one each time a pressed key is resend. If another key is pressed is it reset to zero. Even when you don’t use the notifications you should still read them and flush them into the digital nirvana because otherwise it can happen that some buffer runs full and your process cannot communicate any longer with eiri.

As with all preview releases the target audience are advanced end users and developers that want to test things. The goal is to test if the application works on a broader base of devices. The application image does nothing permanently to your WDTV, so if you experience any problems simply delete the application from your USB stick.

June 3, 2009

event-osd Tutorial Available

Filed under: event-osd, osd — Tags: , , , , , — Elmar Weber @ 02:59

A tutorial for event-osd is available at the Wiki: http://sourceforge.net/apps/trac/wdtvtools/wiki/event-osd/tutorial.

The wiki page for event-osd also has a used by section, so if you have an application that uses event-osd you’re welcome to add a link to it (or mail it to me or leave it here in a comment).

June 2, 2009

event-osd r112 Released

Filed under: event-osd, osd — Tags: , , , , — Elmar Weber @ 04:01

The second release of event-osd is out. event-osd is a notification system for the WDTV’s GUI that allows you to modify the OSD on the fly.

This release works with the media library enabled and should now work on all WDTVs with ext3-boot 0.9.2 and WDLXTV >= 0.5.2.

Besides the main bugfix some smaller changes have been made: app.event files are now converted with dos2unix, so if the file has Windows file endings it still works. Furthermore some system calls have been optimized so that there is less overhead when the directory changes.

You can download the new release from http://sourceforge.net/project/downloading.php?group_id=261153&filename=event-osd-r112-wdtv.zip.

As always, the documentation for developers is available at the Wiki at http://apps.sourceforge.net/trac/wdtvtools/wiki/event-osd.

A video showing event-osd in action with appletrailerfs:

May 30, 2009

First Version of event-osd Released

Filed under: event-osd, osd — Tags: , , , — Elmar Weber @ 23:28

The first public release of event-osd, a notification system for the WDTV’s GUI, is out. It enables third party scripts to modify the GUI on the fly based on the current directory.

This release is designed for the WDTV firmware in the version 1.02.07 it probably only works with this exact version or other firmwares like ext3-boot or WDLXTV that are based on the 1.02.07 too.

You can download it from http://sourceforge.net/project/downloading.php?group_id=261153&filename=event-osd-r100-wdtv.zip.

A, very short, documentation for developers is available at the Wiki at http://sourceforge.net/apps/trac/wdtvtools/wiki/event-osd.

A video showing event-osd in action with appletrailerfs:

And a screenshot:


May 19, 2009

Use More Than 6 Applications

Filed under: applications — Tags: , , — Elmar Weber @ 22:46

The current firmwares only come with a few loop devices, so if you want to use more than 6 applications you need more. disco, author of the webserver app, supplies a how to and fix in his blog at http://discowd.wordpress.com/2009/05/14/extra-loop-devices/trackback/.

The application binary does not work, to use it you must persist the content of the app.bin somewhere in your root filesystem.

May 14, 2009

Preview Release Shoutcast / Internet Radio Application

Filed under: shoutcast — Tags: , , — Elmar Weber @ 21:51

As kind of a byproduct I have been working on while getting the WDTV Tools project started is a proof-of-concept implementation of a Shoutcast / Internet Radio application that delivers you the Shoutcast Radio Stations to the WDTV.

This is a preview release for a shoutcast filesystem for the WDTV. It just contains an unsorted, unchecked, un-everything browse by genre function that for the most part works.

This release is targeted at people who know know their WDTV box and Linux because there is a rather high probability that it will not work directly on your box, so you have to mount it from the command line to find the error.

Tested with ext-boot-0.9.2.

You can get the image at http://sourceforge.net/project/showfiles.php?group_id=261153&package_id=322629&release_id=682670.

Known issues:

  • sometimes the downloaded list of stations / genres has an error (you’ll see an empty folder), in this case just use another genre. If this happens at the “Browse by Genre” directory you have to reboot your device (or remount the application) and try again.
  • if you see everything but no stations plays try installing streamripper in optware, I’m not sure I have included all dependencies
  • there will sometimes be left over stream caches at your boot usb stick
  • will not work if /boot is not your USB stick, this is no problem on ext3-boot, but I don’t know about WDLXTV
  • if you play a low bandwidth stream (e.g. 64k) the first few seconds will have breaks in them because the WDTV can’t handle a half full cache, I did not observe this problem with 128k and larger streams
Screenshot of browsing a genre.

Screenshot of browsing a genre.

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