[linux-dvb] Re: HDTV on skystar1 some technical questions

[Arvo Järve <arvo@softshark.ee>]

With kernel 2.6.9 and cvs dvb-kernel drivers and latest firmware for ac3 
is all ok.
I used new drivers all the time, but hdtv dropouts disapper with newest 
firmware
1.0 rc3.

Arvo

Jan Panteltje wrote:

>Hi,
>I have had the skystar1 for many years now, and it
>worked fine with driver 0.9.3
>for me all this time.
>   
>Recently HDTV is available on 13 east as experiment in
>the HD forum:
>Hotbird 1 (13.0E) - 11344.00 H - DVB/MPEG2, srate:
>24006, FEQ 2/3, prog nr 3700, Vpid 3701, Apid 3702
>
>I use dvbstream by Dave Chapman to record this with my
>card as a transport stream:
>dvbstream -f 11344 -p h -s 24006 -o 3701 3702 >
>hdtv-test.ts
>
>I can play this back with xine:
>xine hdtv-test.ts
>
>panteltje:# streamtype hdtv.ts
>streamtype
>Reading hdtv.ts
>TS_STREAM
>SIZE: 1920x1080
>ASPECT: 16:9
>FRAMERATE: 25
>PROFILE: Main
>LEVEL: High
>CHROMA: 4:2:0
>PAL
>
>There is one problem, the sound is OK (mp2 256 kbps
>stereo), but there are little
>disturbances in the video (square blocks in the mpeg).
>
>The stream demuxes 100% OK with for example ts2pes and
>es_demux, but the same problem
>persists in the demuxed stream.
>
>I am under the impression, but not 100% sure, that
>there is data loss in the hardware / firmware,
>so that the card 'synthesizes' a correct TS, but some
>parts of the video stream are missing?
>   
>Now the question, IF<<< this is so, is there any
>bottle neck where the data rate is limited in:
>hardware
>firmware
>driver  
>What is the effect of the processor speed?
>I get NO buffer overflow messages in the driver when
>recording.
>
>
>There are reports on the net that the card HAS been
>used with success, but a later version (1.5
>I think it was) then I have.
>
>So, I would like to record this hdtv, else only option
>is buy skystar2, but this one is very good really.
>
>Can anything be done, and has anything be done in
>drivers later then 0.93 to increase data transfer?
>
>Anyone done any experiments?
>
>I would like to hear about it.
>Regards
>Jan
>
>
>
>
>		
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