[linux-dvb] SPDIF Soundcard for use with DVB/VDR/DVD - and other questions

[Stefan.Hagendorn@lindy.cc]

Hi all,
I ordered a LEADTEK Winfast 4xSound Card. This card is really cheap (79,-
DM) and features 48KHz Sampling 4 Speaker Mode and digital optical and
chinch input and ouput. The Card (chip C-Media 8738) is supportet by the
ALSA Drivers.

I want to connect the Digital Output of the DVB Card to the SPDIF in of the
Soundcard. The reason for that ist, in normal mode (no AC3 from DVD or in
future from VDR) the sound signal is looped through the soundcard.

In AC3 Mode I mute the SPDIF in and pipe the Audio Data direct to the
Soundcard ... this is now possible with the DVD-Player afaik.

Maybe in future we will be able to record a stream with 2 different audio
tracks (stereo and ac3) and replay them either with the dvb-card alone, or
with the combination of dvb-card for picture and a digital capable
soundcard for sound. Klaus - will this be possible in future ???

I will post a Report on the Soundcard if I get it and it works. Anyway are
there any experiences with this configuration or even with this card ???

Is it (theoreticaly) possible to tune (without vdr) to the right channel
with the AC3 stream as APID. Then do something like 'cat /dev/video >
demux_audio > AC3dec > /dev/audio' Just to understand ....

Another thing I like to know is the possibility of a linux update ... I'm
still a "wet behind the ears" Linux rookie - but I plan to get SuSe 7.1
with kernel 2.4. Are there any advantages in Kernel 2.4. over 2.2.16 and
what is this devsFS all about ?? and does kernel 2.4 work with dvb and VDR
??? ATM I run SuSe 7.0 with the original Kernel 2.2.16 - DVB 0.81 and VDR
0.71 without big problems (see section 'other open Questions' for details
of the small problems I have.


And still other open Questions:

An issue which happends since >= dvb.060. or dvb.070 not sure ...

Since this release I don't see any CAM Messages in the LOG ... I remember
that before this Version I saw messages like "Insert Card" or "IRDETO4.7"
..

And since this Release I got the problem with replaying a Stream and
watching encrypted Channels after it. If I start the replay from an
encrypted Channel the Channel is still decrypted after the replay .. but
when I switch to another encrypted Channel nothing happends .. I just saw
the EPG Information but no Picture.
FTA Channels works fine ... and Pulling out the CAM and reinsert the CAM
works too ...

The last thing is a feature Request for VDR .... I'd like to have a CAM
Menue integrated in VDR and I know it is possible .. there are just some
Informations needed to integrate this ... I allready tried to get the
Informations but failed ... maybe another one could help.

Thanks in advance
Stefan



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