Hauppauge DEC2000-T USB: Difference between revisions
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[[Image:Hauppauge_DEC2000-T_USB.jpg|right|200px|DEC2000-T USB]] |
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A [[DVB-T]] device that can get used both as PC peripheral and as standalone [[STB]]. Based on the [[AV711x]] [[MPEG Decoder]] and the [[TDA10045]] [[Demodulator]]. |
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A [[DVB-T]] [[DVB-T USB Devices|USB 1.1 device]] manufactured by [[TechnoTrend]] and resold by [[Hauppauge]]. |
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Linux driver exists, Audio and Video work. ''Section tables too?'' |
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It is supported under Linux. |
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The device is USB 1.1. |
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==Overview/Features== |
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The DEC2000-T is a digital receiver set-top box that it is equipped with an USB port, allowing it to be used either as a PC peripheral or as a standalone [[STB]] (i.e. used without a PC). |
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There is space for a CAM in the version of the hardware supplied with the 1.26 firmware, however, locating a [[CAM]] for [[Top-up TV]] in the UK is a different story altogether, despite Hauppauge providing them for other models. |
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*Follow the instructions in /usr/src/kernel-source-2.6.8/Documentation/dvb/. |
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The device's TV-Out can't be used for PC output. |
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*Install dvb-utils |
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The device can only deliver a partial/modified TS stream to userspace: due to the limited [[Bus Bandwidth|bus bandwidth]] provided by [[Universal Serial Bus|USB 1.1]], of approximately 12Mbps, only selected [[PID]]s can be transferred over USB to the host system. Consequently, some high bandwidth [[Transponder|transponders]] won't work, and [[HDTV]] reception is not possible. |
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*Set up the channels with |
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''{Q. Does it use a Texas Instruments [[DSP]] that remultiplexes the stream into a [[TechnoTrend]]-proprietary USB packet <br> |
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format and sends it as [[Isochronous USB Stream]] over the bus ? (as in the case of the [[Hauppauge WinTV-NOVA-T USB]]) ?? Sounds like it does.}'' |
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*I've had problems with the picture not displaying, but that could be a driver problem. |
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One can watch digital TV with this device using xine, or alternatively record the incoming stream via cat'ting /dev/dvb. |
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''{huh? isn't this more a case of a VDR limitation, as it appears that device does indeed feature an onboard decoder} ?'' |
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However, it can be used in VDR as a soft-device, streaming or xine or as secondary device. |
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<pre> |
<pre> |
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tzap "Channel id" -r & cat /dev/dvb/adapter0/dvr0 > "Programme.mpeg" & |
tzap "Channel id" -r & cat /dev/dvb/adapter0/dvr0 > "Programme.mpeg" & |
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</pre> |
</pre> |
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===Components Used=== |
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DEC-specific |
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* frontend ... [[NXP Semiconductors|NXP]] [[NXP TDA1004x#TDA10045|TDA10045]] [[Demodulator|demodulator]] ? |
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* has an onboard hardware video+audio decoder ... [[TI AV711x|AV711x]] [[MPEG-2 Decoder]] ? |
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* usb interface (Texas Instruments ?) |
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===Identification=== |
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USB device id: 0b48:1008 |
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==Making it work== |
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===Firmware=== |
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If you have the kernel sources installed, or have installed the [[LinuxTV dvb-apps|dvb-apps]], use the following command: |
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''get_dvb_firmware dec2000t'' |
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Copy the ''dvb-ttusb-dec-2000t.fw'' file downloaded by the above step into the /lib/firmware directory. |
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===Drivers=== |
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The device's internal components are hidden behind the USB interface. |
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The following drivers are needed for this device: |
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- ttusbdecfe.ko |
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- ttusb_dec.ko |
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===User Notes=== |
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==Also See== |
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* [[Hauppauge]] [[Hauppauge DEC2540-T USB|DEC2540-T USB]], a similar model equipped with a a Conax(?) decrypt card slot. |
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* the ttusb-dec.txt file found in the kernel sources (i.e /usr/src/''linux'''/Documentation/dvb/) for some misc. info |
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==External Links== |
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* Hauppauge product page |
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Latest revision as of 11:24, 5 September 2009
A DVB-T USB 1.1 device manufactured by TechnoTrend and resold by Hauppauge.
It is supported under Linux.
Overview/Features
The DEC2000-T is a digital receiver set-top box that it is equipped with an USB port, allowing it to be used either as a PC peripheral or as a standalone STB (i.e. used without a PC).
There is space for a CAM in the version of the hardware supplied with the 1.26 firmware, however, locating a CAM for Top-up TV in the UK is a different story altogether, despite Hauppauge providing them for other models.
The device's TV-Out can't be used for PC output.
The device can only deliver a partial/modified TS stream to userspace: due to the limited bus bandwidth provided by USB 1.1, of approximately 12Mbps, only selected PIDs can be transferred over USB to the host system. Consequently, some high bandwidth transponders won't work, and HDTV reception is not possible.
{Q. Does it use a Texas Instruments DSP that remultiplexes the stream into a TechnoTrend-proprietary USB packet
format and sends it as Isochronous USB Stream over the bus ? (as in the case of the Hauppauge WinTV-NOVA-T USB) ?? Sounds like it does.}
One can watch digital TV with this device using xine, or alternatively record the incoming stream via cat'ting /dev/dvb. It will not work with VDR as a primary device because it does not have a hardware MPEG-2 decoder.
{huh? isn't this more a case of a VDR limitation, as it appears that device does indeed feature an onboard decoder} ?
However, it can be used in VDR as a soft-device, streaming or xine or as secondary device.
- Playback and channel changing (via the playlist) is possible with gxine.
- Set up the channels with scan (e.g. scan -o zap /usr/share/doc/dvb-utils/examples/scan/<country>-<region> > ~/.xine/channels.conf)
- You can record programs with
tzap "Channel id" -r & cat /dev/dvb/adapter0/dvr0 > "Programme.mpeg" &
Components Used
DEC-specific
- frontend ... NXP TDA10045 demodulator ?
- has an onboard hardware video+audio decoder ... AV711x MPEG-2 Decoder ?
- usb interface (Texas Instruments ?)
Identification
USB device id: 0b48:1008
Making it work
Firmware
If you have the kernel sources installed, or have installed the dvb-apps, use the following command:
get_dvb_firmware dec2000t
Copy the dvb-ttusb-dec-2000t.fw file downloaded by the above step into the /lib/firmware directory.
Drivers
The device's internal components are hidden behind the USB interface.
The following drivers are needed for this device:
- ttusbdecfe.ko - ttusb_dec.ko
User Notes
Under Debian:
- Unsuccessful with the most recent firmware version (1.28a?). Use v1.26 of the firmware instead -- Look on archive.org and use zip -F after download if necessary.
Also See
- Hauppauge DEC2540-T USB, a similar model equipped with a a Conax(?) decrypt card slot.
- the ttusb-dec.txt file found in the kernel sources (i.e /usr/src/linux'/Documentation/dvb/) for some misc. info
External Links
- Hauppauge product page