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1
Sundtek MediaTV Pro (Europe) / Options for external (S-Video) input capture
« am: Dezember 01, 2010, 05:30:37 Nachmittag »
Hi all,

I have tried to use the Sundtek MediaTV Pro to do a desktop capture, where I used a König CMP - TELVIEW2 (PC-TV) VGA to TV (composite, S-Video etc) converter.

Basically, I set the desktop to 800x600, and have it cloned on VGA; then I plug the VGA into the König; finally I use S-Video cable as output from the König, and into the Sundtek (via that small cable plug that looks like mini USB, that has S-Video input connector).

Then I open VLC; go to Media/Open Capture Device; enter /dev/video0 for the 'Video device name', and click 'Play'; first I get analog TV static/noise.

Then I do:
$ mediaclient -i
Using device: /dev/video0
ID     | Input
--------------
0000   | Television
0001   | Composite
0002   | S-Video

$ mediaclient -I 0002
Using device: /dev/video0
Setting input: 0002 ... (S-Video) ... done

and then I can see the captured VGA desktop in VLC.

Now, the resolution that is recognized by VLC from the Sundtek stream is 720x576. The original 800x600 looks scaled down to fit in these 720x576, along with a black frame/border. One can 'zoom' from the König device, and thereby use up some of that black frame/border, but I would guess, originally the 800x600 is made into 680x480, and then centered in 720x576.

However, I originally hoped, that this kind of a system would give me 800x600 video - with a quality of an uncompressed desktop screenshot, plus whatever compression the Sundtek has to perform on the signal; and this was important to me, because I don't like fonts heavilly blurred, or with compression artefacts.

As it the scaling down causes fonts to blur - my first question is: is there any way to, possibly, set the capturing resolution of the Sundtek to something else than 720x576 - or is this a limitation of S-Video signal? (in that case, I would hope to set capture resolution to 800x600 in Sundtek, and use the König to 'stretch' the video back again to the original 800x600).

My second question is - what would be the recommended way, for me to capture this S-video stream from Sundtek, directly from the command line (without using VLC)? And hopefully uncompressed (i.e. without additional video compression, than the one coming from the hardware itself)..

Thanks for any suggestions in advance! 

2
Sundtek MediaTV Pro (Europe) / Ubuntu Lucid - VLC 1.1.1 - no video/sound for dvbt
« am: August 07, 2010, 12:31:32 Nachmittag »
Hi all,

I have the same problem as described here:
The VideoLAN Forums • View topic - VLC 1.1.1 - no video/sound for dvbt

That is - the default VLC 1.0.6 in Ubuntu Lucid works fine - however if I install VLC 1.1.1 from PPA named vlc for Christoph Korn : Christoph Korn, there is simply no audio or video (although nothing crashes, and the LED shines on the device).

I noticed there is a /var/log/mediasrv.log - here are the entries from today, where I have both watched on 1.0.6, and then installed 1.1.1 with a problem, and then reinstalled 1.0.6 back:

2010-08-07 06:19:40 [25437] Stopping driver system is going into suspend/standby
2010-08-07 11:55:01 [25613] Starting up Multimedia Framework (May  6 2010 17:16:41)
2010-08-07 11:55:01 [25614] Starting service processor (PID 25614)
2010-08-07 11:55:01 [25613] Detected DVB version.h
2010-08-07 11:55:01 [25613] API Version: 5.1
2010-08-07 11:55:01 [25613] Running on Linux (2.6.32-24-generic)
2010-08-07 11:55:01 [25613] Detected: AuthenticAMD
2010-08-07 11:55:01 [25613] This CPU supports: MMX and SSE
2010-08-07 11:55:01 [25613] scanning devices
2010-08-07 11:55:01 [25613] scanning for plugins
2010-08-07 11:55:01 [25613] found lib: libdrv_net.so
2010-08-07 11:55:01 [25613] found lib: libdrv_em28xx.so
2010-08-07 11:55:01 [25613] found lib: libdrv_vivi.so
2010-08-07 11:55:01 [25613] Starting up device manager
2010-08-07 11:55:01 [25613] scanning devices done
2010-08-07 11:55:01 [25613] attached devices:
2010-08-07 11:55:01 [25613] registering ID: 0
2010-08-07 11:55:02 [25613] disconnecting kernel driver
2010-08-07 11:55:03 [25613] attaching Videodecoder
2010-08-07 11:55:03 [25656] Restarting driver after system resume
2010-08-07 11:55:05 [25613] attaching DVB-T, DVB-C
2010-08-07 11:55:11 [25613] demodulator successfully attached (DVB_C)!
2010-08-07 11:55:11 [25613] requesting to attach tuner(s) now
2010-08-07 11:55:13 [25613] registering: adapter0
2010-08-07 11:55:13 [25613] registered virtual: /dev/dvb/adapter0/frontend0
2010-08-07 11:55:13 [25613] registered virtual: /dev/dvb/adapter0/demux0
2010-08-07 11:55:13 [25613] registered virtual: /dev/dvb/adapter0/dvr0
2010-08-07 11:55:13 [25613] registered virtual: /dev/video0
2010-08-07 11:55:13 [25917] Starting audio processor (PID 25917)
2010-08-07 11:55:13 [25613] registered virtual: /dev/radio0
2010-08-07 11:55:13 [25613] registered virtual: /dev/rds0
2010-08-07 11:55:13 [25613] registered virtual: /dev/vbi0
2010-08-07 11:55:13 [25613] registered virtual: /dev/mediainput0
2010-08-07 11:55:13 [25917] initializing audio in audio processor
2010-08-07 11:55:13 [25613] Registering OSS emulation
2010-08-07 11:55:13 [25932] RC: IR Event /dev/input/event7
2010-08-07 11:55:13 [25613] registered virtual: /dev/dsp1
2010-08-07 11:55:13 [25949] RC: IR Event /dev/input/event7
2010-08-07 11:55:13 [25613]
2010-08-07 11:55:13 [25613] Sundtek MediaTV Driver loaded. This driver is licensed for non-commercial use
2010-08-07 11:55:13 [25613] with Sundtek MediaTV only
2010-08-07 11:55:28 [25613] Enabling standby
2010-08-07 12:05:58 [896] Server already running...
2010-08-07 12:05:58 [898] Starting up Multimedia Framework (May  6 2010 17:16:41)
2010-08-07 12:05:59 [898] Detected DVB version.h
2010-08-07 12:05:59 [898] API Version: 5.1
2010-08-07 12:05:59 [898] Running on Linux (2.6.32-24-generic)
2010-08-07 12:05:59 [898] Detected: AuthenticAMD
2010-08-07 12:05:59 [898] This CPU supports: MMX and SSE
2010-08-07 12:05:59 [898] scanning devices
2010-08-07 12:05:59 [898] scanning for plugins
2010-08-07 12:05:59 [910] Starting service processor (PID 910)
2010-08-07 12:05:59 [898] found lib: libdrv_net.so
2010-08-07 12:05:59 [898] found lib: libdrv_em28xx.so
2010-08-07 12:05:59 [898] found lib: libdrv_vivi.so
2010-08-07 12:05:59 [898] Starting up device manager
2010-08-07 12:05:59 [898] scanning devices done
2010-08-07 12:05:59 [898] attached devices:
2010-08-07 12:05:59 [898] registering ID: 0
2010-08-07 12:05:59 [898] disconnecting kernel driver
2010-08-07 12:06:00 [898] attaching Videodecoder
2010-08-07 12:06:02 [898] attaching DVB-T, DVB-C
2010-08-07 12:06:06 [898] demodulator successfully attached (DVB_C)!
2010-08-07 12:06:06 [898] requesting to attach tuner(s) now
2010-08-07 12:06:09 [898] registering: adapter0
2010-08-07 12:06:09 [898] registered virtual: /dev/dvb/adapter0/frontend0
2010-08-07 12:06:09 [898] registered virtual: /dev/dvb/adapter0/demux0
2010-08-07 12:06:09 [898] registered virtual: /dev/dvb/adapter0/dvr0
2010-08-07 12:06:09 [898] registered virtual: /dev/video0
2010-08-07 12:06:09 [898] registered virtual: /dev/radio0
2010-08-07 12:06:09 [898] registered virtual: /dev/rds0
2010-08-07 12:06:09 [898] registered virtual: /dev/vbi0
2010-08-07 12:06:09 [898] registered virtual: /dev/mediainput0
2010-08-07 12:06:09 [1661] Starting audio processor (PID 1661)
2010-08-07 12:06:09 [910] trying to load uinput module
2010-08-07 12:06:09 [1661] initializing audio in audio processor
2010-08-07 12:06:09 [910] loading uinput kernel extention succeeded, waiting for interface
2010-08-07 12:06:12 [898] Registering OSS emulation
2010-08-07 12:06:12 [898] registered virtual: /dev/dsp0
2010-08-07 12:06:12 [1712] RC: IR Event /dev/input/event7
2010-08-07 12:06:12 [898]
2010-08-07 12:06:12 [898] Sundtek MediaTV Driver loaded. This driver is licensed for non-commercial use
2010-08-07 12:06:12 [898] with Sundtek MediaTV only
2010-08-07 12:06:12 [1726] RC: IR Event /dev/input/event7
2010-08-07 12:06:27 [898] Enabling standby
2010-08-07 12:09:25 [898] SETTING DVB-C
2010-08-07 12:09:25 [898] SETTING DVB-T
2010-08-07 12:09:30 [898] Channel found (714000000)
2010-08-07 12:09:30 [898] =============
2010-08-07 12:09:30 [898] Bandwidth: 8 MHz
2010-08-07 12:09:30 [898] FFT mode: 8k
2010-08-07 12:09:30 [898] Guard Interval: 1/4th
2010-08-07 12:09:30 [898] Constellation: QAM64
2010-08-07 12:09:30 [898] Code rate: 2/3rd
2010-08-07 12:09:30 [898] Hierarchy: None
2010-08-07 12:09:30 [898] Priority: High
2010-08-07 12:09:30 [898] Mirroring: Normal
2010-08-07 12:09:57 [898] Enabling standby
2010-08-07 12:13:09 [898] SETTING DVB-T
2010-08-07 12:13:09 [898] reinitializing previous digital TV parameters
2010-08-07 12:13:11 [898] Channel found (714000000)
2010-08-07 12:13:11 [898] =============
2010-08-07 12:13:11 [898] Bandwidth: 8 MHz
2010-08-07 12:13:11 [898] FFT mode: 8k
2010-08-07 12:13:11 [898] Guard Interval: 1/4th
2010-08-07 12:13:11 [898] Constellation: QAM64
2010-08-07 12:13:11 [898] Code rate: 2/3rd
2010-08-07 12:13:11 [898] Hierarchy: None
2010-08-07 12:13:11 [898] Priority: High
2010-08-07 12:13:11 [898] Mirroring: Normal
2010-08-07 12:13:46 [898] Enabling standby
2010-08-07 12:18:23 [898] SETTING DVB-T
2010-08-07 12:18:23 [898] reinitializing previous digital TV parameters
2010-08-07 12:18:25 [898] Channel found (714000000)
2010-08-07 12:18:25 [898] =============
2010-08-07 12:18:25 [898] Bandwidth: 8 MHz
2010-08-07 12:18:25 [898] FFT mode: 8k
2010-08-07 12:18:25 [898] Guard Interval: 1/4th
2010-08-07 12:18:25 [898] Constellation: QAM64
2010-08-07 12:18:25 [898] Code rate: 2/3rd
2010-08-07 12:18:25 [898] Hierarchy: None
2010-08-07 12:18:25 [898] Priority: High
2010-08-07 12:18:25 [898] Mirroring: Normal


Well, hope this helps in identifying what actually isn't working in the new version...

EDIT: The mediaclient version I was using here is:
$ /opt/bin/mediaclient --build
Build date: May  6 2010


Thanks in advance for any help,
Cheers!

3
Sundtek MediaTV Pro (Europe) / Turning off LED diode, and "downsampling" video?
« am: April 08, 2010, 10:11:28 Vormittag »
Hi all,

I am using Sundtek with VLC under Ubuntu 9.10 (strangely in Kaffeine the audio does not work), and it all works fine, except I have two issues:

* When the device is first plugged in, the LED is not flashing. Then as soon as I start watching, the LED turns obviously ON. However, after I stop watching, the LED is still ON, and it remains ON even when I set the PC to suspend. Is there any way to turn off the LED using a separate software command, for example?

* There are some HD channels available, which my PC is unfortunately not powerful to decode completely - and both video and audio drop constantly. What I would like to do in this case, is maybe use some command, so I watch the video at half resolution or less (in the end, what I care for mostly is that the audio is uninterrupted). There is a "half resolution" video command in VLC, but it seems to scale the HD video *after* the full HD has been received, which just hurts performance slightly. Ideally, I'd like to instruct the device to "capture" at half the video resolution, so there is both less data to decode on the PC side and less data through USB. Are there any chances of doing this?

Thanks,
Cheers!   

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