Mailing List archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[linux-dvb] Antwort: Re: VDR: first step towards AC3 sound
Hi Guido,
try ac3dec from the ALSA-TOOLS cvs ... (under ALSA) ...
ac3dec -C
There is only one drawback ... it looks like it doesn't react on closing
the writing pipe results in a "hang" after the replay stops ...
Greetings
Stefan
Guido Fiala
<gfiala@s.netic.de An: Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>,
> linux-dvb@linuxtv.org
Gesendet von: Kopie:
linux-dvb-bounce@l Thema: [linux-dvb] Re: VDR: first step towards AC3 sound
inuxtv.org
24.06.2001 18:25
On Sunday, 24. June 2001 16:55, Klaus Schmidinger wrote:
> Andreas Vitting wrote:
> > OK, i have used the patch and get only terrible, cutted and scratched
> > sound from my receiver.
> > I have changed play-ac3.c to read and fread commands, but this doesn't
> > help (it works for the dvdplayer). Play-ac3 worked also together with
> > "extract_ac3 any.vob" file. The ac3dec tool stopps with a core dump if
i
> > playing a vdr ac3 file (created with "-a cat > vdr.ac3"). It recognize
> > the stream data (2.0 Mode 48.0 KHz 448kbps) then stops w/o playing.
>
> As far as I can see VDR extracts all packets delivered by the driver
under
> the dolby digital PID and sends them to the command defined by the "-a"
> option. VDR does not do any additional conversion or manipulation with
> these packets, so if any such measures are necessary, somebody will have
to
> tell me what that would be.
>
> > The play-ac3 tool generates true AC3 sound (i have tested it with an
ac3
> > test file DD5.1). By that way - whats the Pid for Cinedome Deluxe, on
> > this channel Premiere sends also DD5.1 sound (if i order a movie, i can
> > try it).
Good to hear - did you anything special to get it working?
For me it reports:
SNDCTL_DSP_SETFMT failed.
BTW, there is another one for alsa:
ac3spdif which should work like that (from it's README):
vdr -a "ac3spdif | aplay -f dat -f s16_be"
It does something with the package headers, maybe that is what you look for
Klaus?
BTW, the above command does only work in /bin/sh, i could'nt get something
similar working for /bin/bash - someone with more knowledge?
--
Info:
To unsubscribe send a mail to listar@linuxtv.org with "unsubscribe
linux-dvb" as subject.
--
Info:
To unsubscribe send a mail to listar@linuxtv.org with "unsubscribe linux-dvb" as subject.
Home |
Main Index |
Thread Index