Posts Tagged “Linux”

A few months back I already discussed on a forum the possibility to use a linux based router to be able to use your Amino STB and htpc at the same time. This weekend I finally had some time to play around with dd-wrt, and within a hour or two, I already got it working.

The main problem was the DHCP request to the IPTV Network. When using a windows htpc, you must let the STB to the DHCP request, and then spoof the MAC address, and copy the ip of the STB to your windows network configuration. But when your STB receives a new ip-address, your windows htpc does not work anymore.

When using linux, it would be possible to spoof the MAC address, and change the DHCP request on linux, so your linux htpc will retrieve a correct ip address, and iptv can be used on the linux htpc. This works without any issues on my linux htpc for months now. But with this setup, you can’t use the STB anymore.

So with my new setup, it should all be possible. Setting up a dd-wrt router, which retrieves a ip-address through a DHCP request with a Amino vendor class option. Then the STB and linux htpc can request a ip-address throught DHCP from the dd-wrt router. The dd-wrt router is using an igmp proxy to let multicast flow between the IPTV network and the network of the STB and htpc. And it all works together very nicely.

I still see a maximum of 5 IPTV streams in the XMS network. I started with one HD stream on the STB. dd-wrt was showing around 14mbps on the WAN and LAN side. Then I started recording a few HD streams on the linux htpc. When I had a total of 5 HD streams (1 on the STB, and 4 on the linux STB), I saw a total of 66.5 mbps on the WAN and LAN side of the dd-wrt router. When starting a fifth recording on the htpc, I saw no change in the used bandwidth of the WAN or LAN side of the dd-wrt router. On the linux htpc, I only saw a black screen. When I put the STB in standby mode with the remote control, I saw the bandwidth drop to around 52 mbps for a few seconds and then come back to 66 mbps, and suddenly the stream on the linux htpc started playing. This proofs to me that the IPTV network has some kind of limit of 5 IPTV streams. I don’t know if this is a maximum per MAC / IP address or a maximum per fiber connection.

In my new setup if appears that the STB and my linux htpc can easily be used at the same time without conflicting each other or giving any other problems. It should also be possible to use a windows htpc, but I don’t have a windows htpc, so I could not test it. To see more information how to set this up see my IPTV Router page.

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Yes… Mesa Happy (think Jar-Jar from star wars…)

I just managed to setup my mythtv media pc with the new iprecorder functionality to record up to *5* streams of iptv receiving from our local fiber optic tv supplier (XMS). Time for a little party ๐Ÿ™‚

Since a few months I have a fiber optic connection to my home, the so called Zeewolde op Glasvezel project. The fiber optic is brought all the way into the house and connected to a Genexis modem. This modem seems to have one fiber optic entering the case from the bottom. But this actually consist of two very tiny fibers. One fiber is for all digital data in _and_ out. This is your internet, digital tv, telephone. The second fiber is a one-way fiber with the 40 analogue tv channels and a few radio stations (don’t know how much). This brings me to the other ports of the modem. It has one coaxial output with the 40 analogue tv channels and radio stations. This can be used for any ordinary tv, video recorder or analogue tv-card in a pc. Because all data of the tv channels and radio stations are broadcasted over this coax cable, the coax cable can be splitted with special tv/radio splitters, so you can watch different channels on multiple devices at the same time. Back to the modem. The modem also has two rj11 connectors (t1 and t2) for analogue telephones. And there are four rj45 connectors (m1 til m4). The m1 connector provides an internet connection when connected to one pc or a router when you have multple pc’s behind the router. The m2 connector provides digital tv and must be connected to a settopbox. In this case a Amino Aminet 130m (with hdmi output). This settopbox is running Linux inside with a opera browser. The tv signal is requested through an ip-connection and broadcasted with multicast. More info over the how this works will be om my site. With the setup mentioned above, you can watch analogue tv on several tv’s. But with only one settopbox, you can only watch digital tv on one tv. It is possible to attach another settopbox, but the local supplier will only send you a non-hdtv settopbox as your second settopbox.

I use mythtv for about 6 years now. About 3 and a half years back (I think), I upgraded my mythbox with a Hauppaugt WinTV PVR-500 (dual tuner). This gave me the opportunity to record 2 shows at any time, while still using the tv to watch a third show. Although it’s long ago that I really watched something live (directly from tv or in mythtv), because we just record anything we want to see, and watch it, when it fits our time schedule ๐Ÿ™‚ With the new fiber optic services, I can still record 2 shows at the same time through the analogue coax cable (and have a much better quality (less visual noise) compared to the tv signal from the local cable company UPC). But the settopbox has much more channels, around 160 channels (tv channels and radio stations). The aminet130m settopbox has a usb port. And some rumours on the internet say that it will be possible to attach an external usb drive to the aminet130m and have recording capabilities. But, this first has to be programmed into the firmware. This (I think) will not be available in the next months. besides that… I want my mythtv to do all the recording!

By doing a little traphic capturing between the settopbox and the modem, I managed to configure my linux pc with mythtv correctly, to watch the iptv streams on the media pc. Together with the iptvrecorder, which was added to mythtv somewhere in the last year, I am able to watch live TV. Then ramp it up a little, and finally had mythtv record 5 iptv streams (not hdtv) simultaneously. But I think there’s also a limit on the iptv supplier side, because my 6th stream was not working in mythtv. But 5 streams recorded at the same time should be sufficient enough ๐Ÿ˜Ž

More information about how I configured my linux pc and mythtv will be published on my site soon…

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Gigabyte M528 MID

Gigabyte M528 MID

Giga-byte is showing a new device on their website with the status ‘Coming Soon’. This is Linux-based MID (Mobile Internet Device) with a qwerty keyboard, Including an Esc key!!

So finally, it’s possible to ssh to a linux box and vim from almost anywhere on the planet (as long as there isย  Wifi, GPRS or UMTS/HSDPA).

This is really a very neat device. It’s a bit bigger than the average smartphone, but still small enough to be very portable. (15,2 x 8 x 2,25 cm, 340g). It has a intel atom chip running at 800Mhz, 512MByte of memory and a 4GByte SSD for storage. The screen is a 4.8 inch touchscreen LCD display with 800×480 pixels. The device supports bluetooth (2.0), wifi (802.11b/g) and HSDPA UMTS and has an integrated GPS receiver. Besides a mini-usb port to connect it to for example you linux workstation, it also has a usb host port, to connect an external harddisk, usb webcam, scanner, printer, anything (as long as the software supports it). And ofcourse, If you slide the MID open, you will get a blacklight keyboard, with an ESC button.

The MID does not support voice calls, but maybe voip calls over umts will work also… Some sites mention that the linux OS is Ubuntu Mobile and that looks very good and usable. Ubuntu mobile comes with a browser based on Firefox 3, and open office. So what else do you need?

So now you know what’s on my wishlist for my next birthday ๐Ÿ˜‰

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I’ve been using Mythtv for about 4 years now. And the motherboard is showing some failures now and then (rebooting in stead of shutdown), the disks are a bit full and playback of hdtv is not smooth.

So time for a new one!

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