In this article I want to show you a few things you can do with a $50 TV card under Linux. This article expects you to know how to compile the kernel, and how to install general application on Linux. I will not get into too much detail, but for each section there are plenty of documentation available on the web for you to study and learn.
This last week I had a blast setting up a Pinnacle Studio PCTV on my Linux box. You can get this TV Card for about $50 on most online computer stores.
First, let me give you my settings:
1 GHz Athlon 256 MB of RAM 60 GB HD VIA 97 Sound Card Nvidia TNT2 Running Red Hat 7 Kernel 2.4.1 Xfree86 4.0.2
Pinnacle Studio PCTV
Here is what you need:
1. Sound working under Linux.
This can either be accomplished by running /usr/sbin/setup (under Red Hat systems) or by manually loading the sound drivers with /sbin/insmod.
I also would suggest that you take a look at http://www.opensound.com if your sound still doesn’t work under Linux, and you have tried both previous procedures.
2.Kernel configured to support bttv driver (http://www.strusel007.de/linux/bttv/)
With the original kernel 2.2.x that comes with Red Hat, your bttv drivers should already be in place, compiled and ready to go.
If you need to (re)compile 2.4.0, you need the following options activated.:
• Under Character Devices-> I2C support, turn on I2C support, and I2C bit-banging interfaces
• Under Multimedia Devices, turn on Video For Linux, and under Video For Linux, set BT848 Video For Linux as a module.
Feel free to add anything else that you need, but for help, read the kernel documentation.
After the kernel has been successfully compiled, and its modules, reboot your machine, and run /sbin/insmod bttv. If no error pops up, you should be all set.
So, now we need an application to interface with the TV drivers.
Download this app at: http://www.strusel007.de/linux/xawtv/index.html
Nothing too exciting here, download it, untar it, then:
• ./make install
Note: The only error I have seen this application give me, is that it will not work if the there is something wrong with your: /etc/X11/app-defaults/ directory or path.
3.1. Running xawtv:
To run xawtv, on your Xterminal just run xawtv, it will pop a screen with good old fuzzy TV noise will show up (assuming that you have gotten all the previous steps right, and your TV card is installed :-D).
You can right click on the TV screen to get a menu where you can do all sorts of things to the application. To know more about how to configure this app, just read the documentation included with it (It is pretty good).
With xawtv, you should be able to plug in your cable, regular antennas, and watch TV on Linux, or even a VCR/DVD and watch your favorite movie.
4. Running Sega DreamCast on your Linux box.
If you have gotten all the last 3 steps done right, you now, can bring in your Sega DreamCast (or whatever other video game console you have), and plug it in to the back of your TV card, play video games via xawtv.
To get mine running I basically, plug the Video output of my Sega DreamCast into my Composite Plug on the back of my TV card, and I went to Radio Shack and paid $2 for a adaptor that allows to plug my Audio (L/R) output of my DreamCast directly into the Line-In plug of my sound card. The reason I did it that way? It saved me $20, this way I don’t have to buy Sega’s RF Adaptor. You are also welcome to just plug in a VCR into your TV card, and your DreamCast into the VCR.
5. Creating Real Video on Linux
Now, this was the most exciting part of them all for me, and probably the one that took me the longest to get it going. First of all download the Real Producer Basic from: http://proforma.real.com/rn/tools/producer/index.html (Note: Real Networks is always changing their products’ URL, if this URL stops working, just go to http://www.real.com and search for the Real Producer Basic).
After going through the installation process, go to the directory where you just installed real producer (in most cases: /usr/local/realproducer-8.5), you can run something like this:
[root]# realproducer -o /tmp/testing.rm -t 7 -a 3 -v 0 -f 0 -b « Testing Video » -h « Anderson Silva » -c « Personal » -vc RV300 -l 2:1,8:1
On the example above, I am capturing video straight from my TV card, and encoding it to Real Player 8 and saving it under /tmp directory as testing.rm.
Command Line Options:
-t Target Audience (e.g. 7 is for Cable bandwidth)
-a Audio Format (e.g. 3 is for Stereo Sound)
-v Video Quality (e.g. 0 is for Normal Video)
-f File Type (e.g. 0 is for Single Rate Video)
-b Video Title
-h Author Information
-c Copyright Information
-vc Video Encoding (e.g. VC300 for Real Player 8, VC2000 for Real Player 7)
-l audio, and video devices (e.g. 2:1 grab audio from Line-In output, 8:1 grab video from Composite output on TV Card).
This is just a fraction of the command line options for the realproducer. You can read more about them running ./realproducer –help or by reading the documentation that comes with it (usually stored at /usr/local/realproducer-8.5/help/producer.htm)
Other TV Cards:
In theory, the following cards are also suppose to work: STB TV PCI, Diamond DTV2000 (*), Videologic Captivator PCI, AVerMedia TV-Phone (*), Osprey-100, IDS Imaging FALCON.
* Links removed because they went dead. Current URLs are unknown. -Ed.