[MPlayer-advusers] DVB documentation unclear/outdated

[Nico Sabbi]

lynx.abraxas at freenet.de wrote:

>Hallo!
>
>
>I  now  have  an  DVB-T  USB  stick  working  and  went  through  the  mplayer
>documentation for DVB. I find this section of the docs very confusing and  out
>dated. Here some suggestions:
>
>1)  What is ment by dvb output? Can ff-dvb-card (full  featured  dvb cards) be
>use with mpegpes for hardware encoding??? Or does it mean one can use  ff-dvb-
>cards  to  decode  any  mpeg-stream  by the hardware even if it is not DVB? If
>that's ment the term dvb output is very confusing. 
>
DEcoding

>I'd suggest something like:
>"Use full featured dvb  cards  to  do hardware decoding on mpeg2-streams other
>than dvb, eg. dvd vob-files"
>
>2) The hardware decoding example differs from the first software decoding line
>only in the file name. Does the file extension make the difference?
>  
>
no

>3) Is mpegpes only ment for ff-dvb-cards?
>
yes

> If so, it should be mentioned as now
>a days budget cards get more and more common.
>
>4) In connection with mpegpes there is also  mpeg-4  mentioned.  Is  that  for
>chips which can do mpeg-4 hardware decoding?
>  
>
none of them is supported; maybe there's an example to transcode from 
dvb input to mpeg4

>5)  It  could  be  said  in the dvb input part that an alang-option set in any
>configfile can lead to no sound if the language is not in the stream.
>  
>
right

>6) Last there is "realtime transcoding between MPEG-2  and   MPEG-4   (partial
>decompression)" mentioned. It seems this is outdated. In my researches I found
>out that in 2002 it had been  dropped  off  the  ToDo-list.  I  couldn't  find
>anything newer to that concerning mplayer/mencoder. Is it possible now?
>
it's been possible since dvb:// and demux_ts were added to mplayer

> If so,
>how? As far as I  can  understand  I  found  something  about  it  at  the  TU
>Braunschweig.  (mpeg-4  transcoding http://www.ibr.cs.tu-bs.de/users/brandt/ )
>Can that be use for mplayer?
>
>
>Finally: If I use the keys 'h' or 'k' to change the channel when watching dvb-
>t  mplayer  changes  it  but  then  does  not  take any further input from the
>keyboard. 
>

??

>Ctrl-C works though. Same happens when I use the menu with dvbsel to
>change the channel. What can I do about it?
>  
>

it works here

>MPlayer rules!
>
>Thanks
>Lynx
>
>  
>