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[linux-dvb] Re: Antwort: VDR and AC3 out via SB live
Mh...
Now i tried to cat the ac3 sound out of vdr into a file - but the file
remains empty :-(
Any idea what i could have done wrong ?
I took the following entry in channels.conf for pro7:
"Pro-7:12480:v:0:27500:255:256;257:32:0:898"
Then i changed the call of vdr in the runvdr script to "-a catac3"
And i created a script called "catac3" which i put in the /usr/bin dir with
the following content:
#!/bin/sh
cat > /video0/test.ac3
Whats wrong with this ? the File /video0/test.ac3 is created when switching
to pro7 - but alway remains 0 byte :-(
Do i have to turn anything else ON ?
But anyway in 2 hours pro7 is going to cast a movie in DD - then i'll see if
the beavior differs...
Martin.
> I use a cmipci card ... anyway afaik Pro7 sends the digital-audio stream
in
> every broadcast EXCEPT commercials ... I tested several times with Pro7
and
> it works. Did you test to pipe the data into a file and play it with
> play-ac3 ??? (first "-a cat > ac3data" and to see if it works play-ac3
> ac3data) If this works the realtime should work too ..
>
> Anyway as another way try the alsa drivers .... they support ac3 over
> digital output afaik.
>
> Stefan
>
>
>
> ma.hoff@t-online.d
> e (Martin An: "linux-dvb"
<linux-dvb@linuxtv.org>
> Hoffmann) Kopie:
> Gesendet von: Thema: [linux-dvb] VDR and
AC3 out via SB live
> linux-dvb-bounce@l
> inuxtv.org
>
>
> 13.07.2001 22:32
>
>
>
>
>
>
>
> Hi,
>
> i'm trying to get the ac3 output via Soundblaster Live digital output to
> work.
>
> Has anyone succesfully done this yet ?
> If so, would you please tell me how to do that ?
>
> Here is what i have done so far:
>
> I took the latest cvs drivers for the SB Live (emu10k1) compiled them and
> compiled the tool play-ac3.
> Okay, after loading those "filters" to enable ac3 output, the play-ac3
with
> a filename just works fine!
> As far as i understand i have to add a "-a play-ac3 -" to the paramters of
> the vdr call. Or to be precise a script which is called by -a and contains
> the "play-ac3 -" command, because otherwise the "-" isn't passed through.
> So i thought this should work. But when switching to Pro7 there is only
> silence (someone told me there would alway be ac3 2.0 ?) - and switching
> back to any other channel (pro7 is the only one, i can receive, which
> contains a Dolby pid) gives an error message from play-ac3 about a broken
> ac3 stream.
> Is this behavior correct ? And will it work, if pro7 casts a movie
> containing 5.1 DD ?
>
> Or is this the wrong way ?
>
> Any help would be nice...
>
> Martin.
>
>
>
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