[linux-dvb] Re: redirecting video...

[Rikard Herlitz <rikard.herlitz@twap.se>]

Thanks alot, making progress ...
Now I'm wondering how to complete the last stage, piping the video to 
the DVB-cards
decoder... I tried to open /dev/ost/video and output the result to it, 
but nothing happens...

How can I output my descambled stream back too the card?

Peter Maersk-Moller wrote:

>Hi Rikard
>
>Rikard Herlitz wrote:
>
>>I need help redirecting the video output to a program, to do my own
>>descrambling.
>>(I'm not talking recorded video or mpeg-files)
>>Is it possible to go about like this?
>>- open a demuxer
>>- set a pes-filter with videopid, dmx_in_frontend, dmx_out_tap
>>- read from demux and write to my program, or a fifo
>>- output descrambled video from my program to the decoder
>>Or is there an easy way to redirect the video to a fifo?
>>
>
>dvbstream can output a filtered TS or PS to stdout and subsequently
>to a fifo aka pipe (named or unnamed).
>
>If you use unnamed pipes, then try
>
>  $ dvbstream -o VIDEOPID | descrambler | player
>
>to prove the concept and then rewrite the player to include
>the dvbstream code and your descrambler code to save a lot of
>unnecessary write and reads. Your descrambler is expected to understand
>a MPEG-2 TS or PS (use the -ps flag for dvbstream).
>
>Feel inclined to feed back the code of your descrambler to the community.
>
>Kind regards
>
>--PMM
>





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