[linux-dvb] Antwort: AW: Antwort: AW: Re: VDR: first step towards AC3 sound

[Stefan.Hagendorn@lindy.cc]

Hi Andreas,

I've done exactly the same .. I recorded some movie ... (nothing special ..
and NOT 5.1) and played it with ac3dec without any problem ...
I don't now anything about size and sync .. I just can tell that it works
...

Greetings Stefan



                                                                                                                        
                    "Andreas Vitting"                                                                                   
                    <Andreas@huji.de>         An:     <Stefan.Hagendorn@lindy.cc>                                       
                    Gesendet von:             Kopie:  <linux-dvb@linuxtv.org>                                           
                    linux-dvb-bounce@l        Thema:  [linux-dvb] AW: Antwort: AW: Re: VDR: first step towards AC3      
                    inuxtv.org                sound                                                                     
                                                                                                                        
                                                                                                                        
                    25.06.2001 20:42                                                                                    
                                                                                                                        
                                                                                                                        




Hi Stefan,
i have decoded a 2/0 AC3 Stream (the standard Stream from pro7 television).
Pherhaps you has recorded a 5.1 DD Stream from a movie ?? My stream is
wrong. From the sync to the next sync bits there is more room then the
framesize told me (14 Bytes).

Andreas

-----Ursprüngliche Nachricht-----
Von: linux-dvb-bounce@linuxtv.org
[mailto:linux-dvb-bounce@linuxtv.org]Im Auftrag von
Stefan.Hagendorn@lindy.cc
Gesendet: Montag, 25. Juni 2001 11:50
An: Andreas Vitting
Cc: linux-dvb@linuxtv.org; linux-dvb-bounce@linuxtv.org
Betreff: [linux-dvb] Antwort: AW: Re: VDR: first step towards AC3 sound





>To All:
>the ac3 stream generated from the dvb-s has 14 extra bytes in front of
each
>ac3 frame (so it is not ATSC conform). I try to eleminate the 14 bytes and
i
>get a error free ac3 stream - but w/o correct sound. So i decode it by
hand
>and see no error in the (roundabout 25) first bytes. Pherhaps something is
>wrong with the Dither Flags or Rematrixing Flags.

What kind of Stream have you tested ? The recorded stream from Pro7 works
as fine as a ac3 stream from a dvd for me (ac3dec from the actual alsa cvs)
I can play it raw to spdif and can decode pcm. Only Cinedom dlx makes
problems.

Stefan



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